Lexmark T620 Service Manual

Lexmark T620 Manual

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  • Lexmark T620 | Service Manual - Page 1
    Lexmark™ T62X 4069-5xx/7xx • Table of Contents • Start Diagnostics • Safety and Notices • Trademarks • Index • Manuals Menu Lexmark and Lexmark with diamond design are trademarks of Lexmark International, Inc., registered in the United States and/or other countries.
  • Lexmark T620 | Service Manual - Page 2
    include technical inaccuracies or typographical errors. Changes are periodically made to at any time. Comments may be addressed to Lexmark International, Inc., Department D22A/032-2, 740 Lexmark International, Inc. 2001. All rights reserved. UNITED STATES GOVERNMENT RESTRICTED RIGHTS This software
  • Lexmark T620 | Service Manual - Page 3
    Error Codes 2-2 User Status Screens 2-24 User Attendance Messages 2-29 Power-On Self Test (POST 2-41 Symptom Tables 2-42 Service Checks 2-46 Charge Roll Service Check 2-47 Cover Open Switch/Cable Service Check 2-49 Dead Machine Service Check 2-50 Duplex Option Service Check 2-53 Envelope
  • Lexmark T620 | Service Manual - Page 4
    Service Check 2-109 Smart Cartridge Contact Assembly Service Check. . . . .2-121 Serial Port Service Check 2-122 Toner Sensor Service Check 2-122 Transfer Roll Service Check 2-123 StapleSmart Finisher Service Check 2-125 Diagnostic Aids 3-1 Diagnostic/Configuration Menu 3-1 Configuration
  • Lexmark T620 | Service Manual - Page 5
    the Permanent Page Count 3-30 Maintenance Page Count 3-31 Setting Configuration ID 3-31 Restore EP Factory Defaults 3-32 Print Tests 3-33 Print Quality Test Pages 3-34 Printing Menu Settings Page 3-36 Auto Compensator Operation 3-36 Autoconnect System, Paper Tray Options, Envelope Feeder and
  • Lexmark T620 | Service Manual - Page 6
    4-26 Fuser 4-30 Fuser Cover 4-31 Fuser Detack Fingers 4-31 Fuser Detack Housing Assembly 4-32 Fuser Transfer Plate 4-33 Fuser Envelope Conditioner Solenoid 4-34 Fuser Narrow Media Sensor/Flag Assembly 4-35 Fuser Exit Sensor Flag Assembly 4-35 Fuser Lamp 4-35 Fuser Lower Exit Guide Assembly
  • Lexmark T620 | Service Manual - Page 7
    14 Assembly 6: Paper Feed - Alignment 7-16 Assembly 7: Paper Feed - Output 7-18 Assembly 8: Integrated Paper Tray - 500 Sheet 7-20 Assembly 9: Main Drive 7-22 Assembly 10: Developer Drive 7-24 Assembly 11: Hot Roll Fuser 7-26 Assembly 12: Transfer 7-30 Assembly 13: Charging 7-32 Assembly 14
  • Lexmark T620 | Service Manual - Page 8
    Tray 7-50 Assembly 16: 500-Sheet Tray 7-56 Assembly 17: Duplex 7-60 Assembly 18: Output Expander 7-66 Assembly 19: Envelope Feeder 7-70 Assembly 20: High-Capacity Feeder 7-74 Assembly 21: Kiosk - Vertical Paper Adapter 7-88 Assembly 22: Kiosk - Horizontal Paper Adapter 7-90 Assembly 23: High
  • Lexmark T620 | Service Manual - Page 9
    4069-5XX/7XX Laser Notices The following laser notice labels may be affixed to this printer as shown: Laser Advisory Label Laser Notices ix
  • Lexmark T620 | Service Manual - Page 10
    4069-5XX/7XX Class 1 Laser Statement Label x Service Manual
  • Lexmark T620 | Service Manual - Page 11
    in the wavelength region of 770-795 nanometers. The laser system and printer are designed so there is never any human access to laser radiation above a Class I level during normal operation, user maintenance, or prescribed service condition. Laser Der Drucker erfüllt gemäß amtlicher Bestätigung der
  • Lexmark T620 | Service Manual - Page 12
    classe IIIb (3b) all'arseniuro di gallio della potenza di 5mW che opera sulla lunghezza d'onda compresa tra 770 e 795 nanometri. Il sistema laser e la stampante sono stati progettati in modo tale che le persone a contatto con la stampante, durante il normale funzionamento, le operazioni di servizio
  • Lexmark T620 | Service Manual - Page 13
    de la Clase I durante su uso normal, el mantenimiento realizado por el usuario o cualquier otra situación de servicio técnico. Declaração sobre Laser A impressora está certificada nos E.U.A. em conformidade com os requisitos da regulamentação DHHS 21 CFR Subcapítulo J para a Classe I (1) de produtos
  • Lexmark T620 | Service Manual - Page 14
    Subchapter J, voor andere landen in IEC 60825. Laserprodukten van klasse I worden niet als ongevaarlijk aangemerkt. De printer is voorzien van een laser van klasse IIIb (3b), dat wil zeggen een gallium arsenide-laser van 5 milliwatt met een golflengte van 770-795 nanometer. Het lasergedeelte en de
  • Lexmark T620 | Service Manual - Page 15
    enligt kraven i IEC 60825. Laserprodukter i Klass I anses ej hälsovådliga. Skrivaren har en inbyggd laser av Klass IIIb (3b) som består av en laserenhet av gallium-arsenid på 5 milliwatt som arbetar användning, underhåll som utförs av användaren eller annan föreskriven serviceåtgärd. Laser Notices xv
  • Lexmark T620 | Service Manual - Page 16
    I-laserprodukt i samsvar med kravene i IEC 60825. Klasse I-laserprodukter er ikke å betrakte som farlige. Skriveren inneholder internt en klasse IIIb (3b)-laser, som består av en gallium-arsenlaserenhet som avgir stråling i bølgelengdeområdet 770-795 nanometer. Lasersystemet og skriveren er utformet
  • Lexmark T620 | Service Manual - Page 17
    4069-5XX/7XX Japanese Laser Notice Chinese Laser Notice Laser Notices xvii
  • Lexmark T620 | Service Manual - Page 18
    4069-5XX/7XX Korean Laser Notice xviii Service Manual
  • Lexmark T620 | Service Manual - Page 19
    components. The safety features of some parts may not always be obvious. Lexmark is not responsible for the use of other replacement parts. • The maintenance information for this product has been prepared for use by a professional service person and is not intended to be used by others. • There may
  • Lexmark T620 | Service Manual - Page 20
    nicht immer offensichtlich. Sofern Teile eingesetzt werden, die nicht von Lexmark sind, wird von Lexmark keinerlei Verantwortung oder Haftung für dieses Produkt übernommen. • Die Verletzung. Das zuständige Fachpersonal sollte entsprechende Vorsichtsmaßnahmen treffen. xx Service Manual
  • Lexmark T620 | Service Manual - Page 21
    aprobado para cumplir los más estrictos estándares de seguridad global usando los componentes específicos de Lexmark. Puede que las características de seguridad de algunas piezas no sean siempre evidentes. Lexmark no se hace responsable del uso de otras piezas de recambio. • La información sobre el
  • Lexmark T620 | Service Manual - Page 22
    la utililització de components específics de Lexmark. Les característiques de seguretat d'algunes peces pot ser que no sempre siguin òbvies. Lexmark no es responsabilitza de l'us d'altres peces El personal professional ha d'estar-ne assabentat i prendre les mesures convenients. xxii Service Manual
  • Lexmark T620 | Service Manual - Page 23
    4069-5XX/7XX Safety Information xxiii
  • Lexmark T620 | Service Manual - Page 24
    description of the printer and the maintenance approach used to repair it. Special tools and test equipment are listed in this chapter, as well as general environmental and safety instructions. 2. Diagnostic Information contains an error indicator table, symptom tables, and service checks used to
  • Lexmark T620 | Service Manual - Page 25
    General Information The Lexmark™ T laser printers are letter quality page printers designed to attach to IBM-compatible PC's and to most computer networks. The Lexmark T laser printer is available in the following models. Model Name Lexmark T620 Lexmark T620n Lexmark T622 Lexmark T622n Type 4069
  • Lexmark T620 | Service Manual - Page 26
    network options Token-Ring Ethernet Tri-Port Adapter IR Adapter IPDS Card Assembly and SCS/TNe PRESCRIBE Card Assembly TIFF Card Assembly Bar Code Card Assembly Parallel Interface Card SCS USB/Parallel Port MarkNet™ Print Servers ImageQuick Card Assembly 250 and 500-sheet paper trays of A5, letter
  • Lexmark T620 | Service Manual - Page 27
    4069-5XX/7XX Maintenance Approach The diagnostic information in this manual leads you to the correct field replaceable unit (FRU) or part. Use the service error codes, user status messages, user error messages, service checks, and diagnostic aids to determine the printer problem and repair the
  • Lexmark T620 | Service Manual - Page 28
    CSU DIMM DRAM EDO EP EPROM ESD FRU GB HVPS LASER LCD LED LVPS MROM NAND NVRAM OEM PC POR POST RIP ROM SDRAM SRAM UPR V ac V dc Customer Setup Nonvolatile Random Access Memory Original Equipment Manufacturer Photoconductor Power-On Reset Power-On Self Test Raster Imaging Processor Read Only Memory
  • Lexmark T620 | Service Manual - Page 29
    , go to the "User Status Screens" on page 2-24. User error messages are indicated by a two or three-digit error code that provides the user with information that explains a problem with a print cartridge, paper jam, option, port, and so on. If a user error message is displayed, go to the "User
  • Lexmark T620 | Service Manual - Page 30
    4069-5XX/7XX Service Error Codes Service Error Codes are generally non-recoverable except in an intermittent condition when you can POR the printer to temporarily recover from the error condition. Error Code Action 900 RIP Software Contact the next support level or call Lexmark. 901 Engine Flash
  • Lexmark T620 | Service Manual - Page 31
    Fuser Service Check" on page 2-65. Use of the "Base Printer (Fuser) Sub Error Codes" on page 2-17 may help diagnose fuser failure. 922 Fuser Error Fuser failed to reach standby temperature. Go to the "Cold Fuser Service Check" on page 2-65. Use of the "Base Printer (Fuser) Sub Error Codes" on page
  • Lexmark T620 | Service Manual - Page 32
    board is defective. Check for correct installation. If no problem is found, replace the FRUs in the following order: System Board Interconnect Board Note: If a problem still exists, the RIP software can cause a 939 error code. Contact your next level for software support. 2-4 Service Manual
  • Lexmark T620 | Service Manual - Page 33
    -5XX/7XX Error Code Action 940 Service LV Power Supply The low voltage power supply zero crossover test failed. • Check the LVPS for correct installation. Ensure that the connector on the LVPS assembly is firmly seated with the connector on the interconnect card connector. • This error can be
  • Lexmark T620 | Service Manual - Page 34
    the problem, replace the defective RAM. Download Emulation CRC failure has occurred. The following errors indicate a failure with the network card in the specified slot. X=any card installed in slots 1,2 or 3. 975 - Unrecognizable Network Card x. Replace Network Card x. 976 - Unrecoverable software
  • Lexmark T620 | Service Manual - Page 35
    4069-5XX/7XX Error Code Action 980 - 984 Service These error codes indicate the specified device Comm. has detected a paper port failure. Specified device can be one of the following: *System Board *Duplex *Tray x (x = 1,2,3,4 or 5) *Envelope Feeder *Output Bin x (x =
  • Lexmark T620 | Service Manual - Page 36
    to 5, 2 to 6, 6 to 10) **Will be displayed for multiple bin output options. *StapleSmart Finisher Option Sub Error Codes for 9XX and 2XX Error Codes The sub error codes are helpful troubleshooting a paper path problem, especially paper jams in the base printer, envelope feeder and duplex unit. When
  • Lexmark T620 | Service Manual - Page 37
    Return and Select until each screen of information is obtained. 4. When the last screen displays, the original message displays. The following is an example of how the printer shows a duplex unit sub error code. Byte 1 Byte 2 Byte 3 Byte 4 DU XX XX XX XX DU XX XX XX XX Byte 5 Byte 6 Byte
  • Lexmark T620 | Service Manual - Page 38
    status bytes are designed to help isolate paper jams and paper feed problems in the base printer Legend for Tray Source: x=10 (MPT), x-11 (Tray 1), x=12, (Tray 2), x=13 (Tray 3), x-14 (Tray 4), x=15 (Tray 5), x=31 (Env Feeder), X=40 (Manual) Legend for Stacker Destination: x=91 (Stacker 1), x=92
  • Lexmark T620 | Service Manual - Page 39
    value. Explanation 84 xx 02 x1 This error is the most common type of paper jam. Possible causes are (x1=media size): *Multi sheet feeding. *A tray size sensing problem. *The media feeding from the paper source is slipping or media is slipping in input to the printer. 84 xx 04 The input sensor
  • Lexmark T620 | Service Manual - Page 40
    . *Check to see if paper has cleared the pass thru area of the option where the paper jam occurred. 84 00 10 The main motor ID failed to identify either motor after two tries. Possible causes for this error are: *The main drive motor has stalled. *An incorrect main drive motor/gearbox assembly has
  • Lexmark T620 | Service Manual - Page 41
    Tray 6 is feeding paper correctly and all the sensors are working correctly. *Check to make sure the paper size setting is correct for the size paper in the tray. 84 xx 1D The envelope feeder pass thru sensor never deactivated. The display of this code indicates that an envelope never crossed over
  • Lexmark T620 | Service Manual - Page 42
    of paper. x2 (x1=Media Size, x2=Media Source) Check tray x auto compensator and tray parts for correct operation. If no problem is found, go to the "Input Tray(s) Option Service Check" on page 2-69. 84 xx 22 x1 x2 This code indicates that the media activated the input sensor before the printer
  • Lexmark T620 | Service Manual - Page 43
    in the fuser was covered by a sheet of paper when not expected or a piece of media is in the machine during POST. *This error can occur when a 202 paper jam has occurred. *Remove any piece of media that is over the narrow media sensor. *Try to feed a piece of paper through the printer (could run
  • Lexmark T620 | Service Manual - Page 44
    of the media fed through the printer. *This error can be displayed after a 201 paper jam. *This can be caused by a defective fuser exit sensor assembly. Enter the diagnostic tests menu, select base sensor tests, select output sensor test and check the fuser exit sensor for correct operation. If
  • Lexmark T620 | Service Manual - Page 45
    8E xx 13 x1 Late feeding from a paper source interfered with the next pick x2 retry. (x-1=Media Size)(x-2=Media Source) Base Printer (Fuser) Sub Error Codes The following Sub Error Codes could be a help in diagnosing Fuser Assembly failures: First 6 Bytes Sub Error Code Data - Note: xx can be
  • Lexmark T620 | Service Manual - Page 46
    yy=The temperature that the fuser wants to reach. 924 Service - Fuser Error (Open Thermistor Failure) EN 18 xx -- - 1 EN -- 00 -- -2 This code is usually generated when an open circuit check is made of the thermistor circuit in the fuser. xx=Actual Fuser Temperature 2-18 Service Manual
  • Lexmark T620 | Service Manual - Page 47
    . 01 It took long to do lamp detection and NVRAM detected a previous wrong lamp detected. yy=Actual Temperature zz=The temperature that the fuser was trying to reach. Envelope Feeder Sub Error Codes First 6 Bytes Sub Error Code Data - Note: xx can be any value Explanation 84 xx 17 There is an
  • Lexmark T620 | Service Manual - Page 48
    never activated the envelope feeder pass thru sensor or the sensor never sensed the presence of an envelope. (x1=Media Size)(x2=Media Source) *Check to make sure the envelope feeds to the pass thru sensor. *Check to see if the envelope actuates the pass thru sensor flag. 2-20 Service Manual
  • Lexmark T620 | Service Manual - Page 49
    associated with a 271 Paper Jam Error message. May be displayed when a finisher option is installed in lowest or first position above the printer. If present, remove the media from stacker 1. If the error continues to be displayed or there is no media present in the stacker, check the pass thru
  • Lexmark T620 | Service Manual - Page 50
    option was waiting on a page to pass over the printer input sensor. StapleSmart Finisher Option Sub Error Codes First 6 Bytes Sub Error Code Data - Note: xx can be any value Explanation 84 xx 07 The Sub Error code indicates that finisher option has detected a paper jam and homing was allowed
  • Lexmark T620 | Service Manual - Page 51
    4069-5XX/7XX First 6 Bytes Sub Error Code Data - Note: xx can be any value Explanation 8D xx 01 A timeout associated with the stapling operation timed out while waiting for the last page of a job to be safe in the stapler accumulator. 98 xx 03 x1 Never saw operation complete on a staple job.
  • Lexmark T620 | Service Manual - Page 52
    Group. or Press GO to take the printer out of power saver and initiate a printer warm up cycle. or Press Stop to take the printer offline. The Not Ready message is displayed, no more data is processed. The Go button must be pressed to return the printer to the previous state. 2-24 Service Manual
  • Lexmark T620 | Service Manual - Page 53
    a Memory Full Error. Press Stop to take the printer offline. Not Ready is displayed, no more data will be processed and the current job in the paper path is processed. Press Go to return the printer to the previous state. or Will be displayed whenever the printer has been configured to receive or
  • Lexmark T620 | Service Manual - Page 54
    is selected from the menu. Press Stop to take the printer out of Ready. The Not Ready message is displayed. No more data is processed, but the printer processes all paper currently in the printer paper path. Press Go to return to Ready after the page prints. Press Menu> or
  • Lexmark T620 | Service Manual - Page 55
    ). Press Select for the values. Press Menu> until Reset Printer is on the second line of the display. Press Select to reset the printer. The printer is restoring factory defaults. No button actions are possible while this message is displayed. The printer is running the normal series of start-up
  • Lexmark T620 | Service Manual - Page 56
    shows this message for one second and then returns to the Ready message. No button actions are possible while this message is displayed. The printer is reset to No button actions are activate a printer setting possible while this changed in the menus. message is displayed. 2-28 Service Manual
  • Lexmark T620 | Service Manual - Page 57
    the portion of the job printed after the jam will not be stapled. 202 Paper Jam Open Rear Door Leave Job in Finisher Primary: Paper is jammed at the printer exit sensor. Open the printer rear door to access the jam area. Secondary: When this message is displayed, do not remove accumulated sheets
  • Lexmark T620 | Service Manual - Page 58
    job printed after the jam will not be stapled. 250 Paper Jam Check MP Feeder Leave Job in Finisher Primary: Paper is jammed in the multipurpose feeder. Secondary: When this message is displayed, do not remove accumulated sheets during the jam clearance procedure as the printer will not reprint
  • Lexmark T620 | Service Manual - Page 59
    User Message Primary User Message Secondary Explanation 260 Paper Jam Check Envelope Feeder Leave Job in Finisher Primary: Paper is jammed in the envelope feeder. Secondary: When this message is displayed, do not remove accumulated sheets during the jam clearance procedure as the printer will
  • Lexmark T620 | Service Manual - Page 60
    1. Press GO to initiate priming and resume printing. Insert Cartridge or Close Door This message displays when the printer front door is open or the print cartridge is missing. If this message cannot be cleared go to the "Cover Open Switch/Cable Service Check" on page 2-49. 2-32 Service Manual
  • Lexmark T620 | Service Manual - Page 61
    to print pages during this 10-20 second interval. If pages are allowed to print, then they are not reprinted once a good print cartridge is inserted. If this does not fix the problem, go to the "Smart Cartridge Contact Assembly Service Check" on page 2-121. The printer determines the paper length is
  • Lexmark T620 | Service Manual - Page 62
    too full to collate the print job. This message is displayed when the printer memory used to store pages is full. This message is displayed when the page is too complex to print. This message is displayed when the printer detects a defective flash. This error may occur at power on, or during flash
  • Lexmark T620 | Service Manual - Page 63
    port has been disabled. Once this message is displayed, reporting of further errors is suppressed until the menus are entered, or the printer is reset. This error code is displayed when too many input trays are attached to the printer. This error code is displayed when too many optional output
  • Lexmark T620 | Service Manual - Page 64
    reliability of the printer. The parts are available as a maintenance kit. For more information, go to the "Scheduled Maintenance" on page 6-2. This error displays when the microcode to be programmed in the engine flash code module has failed a CRC check. Press Go to clear the message. The microcode
  • Lexmark T620 | Service Manual - Page 65
    is displayed. No more data is processed from the host computer. Press Go to return the printer to the Ready state. User Message Toner Low Tray X Missing Explanation If the toner cartridge is low, then "Toner Low" displays. The Toner Low condition clears whenever the upper front door is opened
  • Lexmark T620 | Service Manual - Page 66
    in the following table. User Message Parallel Serial Serial X Network X Explanation Standard Parallel Port, if available. Standard Serial Port, if available. Serial Port, where X=1,2,3, is attached to PCI connector X. Network card X, X=1,2,3, is attached to PCI connector X. 2-38 Service Manual
  • Lexmark T620 | Service Manual - Page 67
    when the printer looses communications with one of the following devices. User Status Message Check Output Bin X Connection Check Env Feeder Connection Check Tray X Connection Check Duplex Connection Explanation Check Output Bin X (X=1,2,or 3). Check Envelope Feeder Option Connection. Check Tray
  • Lexmark T620 | Service Manual - Page 68
    problem, turn the printer off and back on. If the error occurs again, turn the printer off, remove the option and call for service. User Status Message Explanation Turn Printer OFF to Enable Option This message displays when a printer option, Input Tray, Output Bin or Envelope Feeder, has
  • Lexmark T620 | Service Manual - Page 69
    The duplex option is checked (if installed). 8. The fuser lamp turns on. The fuser takes longer to warm up from a cold start than a warm start. 9. The main fan turns on. 10. The main drive motor turns on. 11. The developer drive assembly drives the developer shaft in the toner cartridge. 12. "Ready
  • Lexmark T620 | Service Manual - Page 70
    not complete POST. Paper feed problems - Base printer or Integrated 250 Paper Tray Paper jams at exit of Redrive Assembly - No Duplex Option installed. Paper jams at exit of Redrive Assembly - Duplex Option installed Fuser Solenoid fails to operate. Print quality - Black page Print quality - Blank
  • Lexmark T620 | Service Manual - Page 71
    on outer edges of the page." on page 2-117. Go to the "Smart Cartridge Contact Assembly Service Check" on page 2-121. Symptom Table - High-Capacity Feeder Option (2000 Sheet) Symptom The printer does not recognize the high-capacity feeder option installed. Paper feed problem with the high capacity
  • Lexmark T620 | Service Manual - Page 72
    Symptom Table - Envelope Feeder Option Symptom Envelopes do not feed from the envelope feeder. Envelopes do not feed properly into base printer. Action Go to the "Envelope Feeder Option Service Check" on page 2-56. Go to the "Envelope Feeder Option Service Check" on page 2-56. 2-44 Service Manual
  • Lexmark T620 | Service Manual - Page 73
    Table - Output Expander Symptom Printer does not display Output Bin Full. Paper does not feed all the way into the output tray. Action Go to the "Output Bin Sensor Standard Tray Service Check" on page 2-90. Go to the "Output Expander Service Check" on page 2-91. Symptom Table - StapleSmart
  • Lexmark T620 | Service Manual - Page 74
    ID must be reset in NVRAM on the new system board. Go to "Setting Configuration ID" on page 3-31. Review the following information before performing any service checks. • Paper feed problems (especially paper jams): Go to "Viewing the Error Log" on page 3-13 and check the printer error log for
  • Lexmark T620 | Service Manual - Page 75
    86 inch) apart or spots on the page can be caused by a damaged or contaminated charge roll. Service Tip: Check to make sure the right charge roll printer. Leave the paper wrapped around the charge roll until it is reinstalled. FRU 1 Charge Roll Assembly 2 Left Side Charge Roll Link Action Check
  • Lexmark T620 | Service Manual - Page 76
    Roll Link Right Charge Roll Bushing Action Check the right side charge roll link assembly for correct assembly operation. If incorrect, replace the charge roll link assembly with the charge roll link assembly kit. If correct, check the right charge roll link assembly bearing for signs of wear or
  • Lexmark T620 | Service Manual - Page 77
    4069-5XX/7XX Cover Open Switch/Cable Service Check FRU 1 Toner Cartridge 2 Cover Open Switch/Cable Assembly Action Check the toner cartridge to make sure it is correctly installed and that the right and left cartridge tracks are not loose or broken. Check to make sure the cover open switch
  • Lexmark T620 | Service Manual - Page 78
    Feeder Input Tray Service Check" on page 2-72. If the base printer continues to not operate correctly, remove any other attached paper handling options. Observe all necessary ESD precautions when removing and handling the system board or any of the installed option cards or assemblies. Service
  • Lexmark T620 | Service Manual - Page 79
    to break contact with the interconnect card autoconnector. Connect the AC line cord, turn the LVPS on. If fuse 1 blows again replace the LVPS assembly. If the fuse does not blow, turn the LVPS off, reinstall the LVPS back into the printer and go to step 7. CAUTION: Before checking fuse F1, turn the
  • Lexmark T620 | Service Manual - Page 80
    10 or 11. The voltage measures approximately +5V dc. If incorrect replace the LVPS. Turn the printer off and disconnect all the cables from the system board. Check the printer off and reconnect one cable at a time until you find the defective assembly. Service Tip: A short or low resistance load that
  • Lexmark T620 | Service Manual - Page 81
    Option Service Check The printer does not recognize the Duplex Option is attached. The printer does problem is found, check the D.C. servo motor pins J1-1 and J1-2 to the motor housing for a short. If a short is found, replace the motor assembly. If no short is found, replace the system board. Check
  • Lexmark T620 | Service Manual - Page 82
    Paper Jam, Check Duplex message displays. FRU 1 Duplex D.C. Servo Drive Motor 2 Input Sensor, Input Sensor Flag 3 Paper Exit Sensor and Flag Action Check the D.C. servo motor cables for signs of cuts or other damage. Check the D.C. servo motor sensor cable connector for pin damage. If no problem
  • Lexmark T620 | Service Manual - Page 83
    4069-5XX/7XX 230 Paper Jam - Check Duplex message displays. The page is not duplexed and only exits half way out of the redrive. FRU 1 Duplex Stepper Motor Action Check the stepper motor cable for cuts or pinched wiring. Check the routing of the motor leads along the left side of the bottom tray.
  • Lexmark T620 | Service Manual - Page 84
    If a 260 Paper Jam Check Envelope message displays, check the "Sub Error Codes for 9XX and 2XX Error Codes" on page 2-8. Printer does not recognize the envelope feeder as an attached input option. FRU 1 Envelope Feeder 2 Front Autoconnect on Printer Action Check to make sure the envelope feeder is
  • Lexmark T620 | Service Manual - Page 85
    4069-5XX/7XX FRU 3 Autoconnect on the Envelope Option Action Check for any signs of damage to the connector or contacts. If you find damage, replace the damaged cable/connector assembly. Disconnect the autoconnect cable at J1 on the envelope system board and measure the following voltages: J1-3
  • Lexmark T620 | Service Manual - Page 86
    , replace the envelope system board. If correct, check the voltage at J3-2. The voltage changes from 0 to +5 V dc when the flag is moved in and out of the sensor. If incorrect, replace the sensor assembly. If this does not fix the problem, replace the envelope system board. 2-58 Service Manual
  • Lexmark T620 | Service Manual - Page 87
    panel displays 260 Paper Jam after attempted feed but before envelopes are put in the hopper OR the operator panel continues to display "Load Envelopes" after envelopes are placed in the hopper. Service Tip: The kick rolls rotate during the attempted feed cycles. FRU 1 Envelope Out Hopper Sensor
  • Lexmark T620 | Service Manual - Page 88
    the envelope feeder system board. If correct, replace the D.C. motor assembly. 260 Paper Jam displays, unable to clear and envelopes fail to feed from the hopper. Kick rolls ARE NOT rotating. FRU 1 Main Drive Belt 2 Gears 3 Clutch Latch Assembly 4 Master Cam Gear Master/ Kick Gear Action Check
  • Lexmark T620 | Service Manual - Page 89
    4069-5XX/7XX 260 Paper Jam displays, unable to clear and envelopes fail to feed from the hopper. Kick rolls ARE rotating. Check the deflector gap adjustment before continuing this service check. FRU 1 Deflector Gap Adjustment 2 Weight Assembly 3 Envelope Edge Guide Action Check the deflector gap
  • Lexmark T620 | Service Manual - Page 90
    /7XX 260 Paper Jam displays, envelope stops in feeder paper path. FRU 1 Kick Rolls/Feed Rolls/Drive Rolls 2 Deflector Gap Adjustment Action Check all the rolls for any signs of oil, grease or other contamination. If you find a problem, clean the rolls. If this does not correct the problem, replace
  • Lexmark T620 | Service Manual - Page 91
    dc. Main Fan Service Check Check the cable connections at J5 on the system board and at the main fan assembly. The main fan runs continuously when the printer is powered on unless the printer is in the Power Saver mode. FRU 1 Main Fan Action Manually spin the fan and check that it rotates freely
  • Lexmark T620 | Service Manual - Page 92
    replace the main fan. Cartridge Fan Service Check This cartridge fan is used in models 722 and 72n Fan does not run or is noisy. FRU 1 Fan Assembly (noisy) Action Check the fan for proper installation and for excessive noise. If incorrect, replace the fan and cable assembly. 2-64 Service Manual
  • Lexmark T620 | Service Manual - Page 93
    the voltage at J6-1 measures approximately +12 V dc. When the printer is running, the voltage measures approximately +24 V dc. Cold Fuser Service Check Error codes 920, 921, and 922 may display for a cold fuser failure. A 920 error caused by low line voltage can sometimes be cleared by turning the
  • Lexmark T620 | Service Manual - Page 94
    have 925 fuser errors, try the following: 1. The fuser may have reached standby temperature too quickly. Check the fuser assembly, system board or LVPS. 2. Ensure that the correct hot roll is installed. 3. Check the AC line voltage to ensure it is not above the maximum rating for the printer. Unplug
  • Lexmark T620 | Service Manual - Page 95
    4069-5XX/7XX Hot Fuser Service Check Error codes 923 and 924 may display for a hot fuser failure. CAUTION: The fuser may be hot, use caution before removing or servicing. FRU 1 Fuser Cover Assembly (Assembly includes Thermistor and Thermal Fuses.) 2 System Board 3 Fuser Hot Roll Backup Roll
  • Lexmark T620 | Service Manual - Page 96
    problem. Note: Check the fuser envelope conditioner solenoid adjustment as described in the adjustment section "Fuser Solenoid Adjustment" on page 4-3. FRU Action 1 Fuser Envelope Conditioner The operation of the fuser solenoid Solenoid can be observed by removing the redrive assembly. Check
  • Lexmark T620 | Service Manual - Page 97
    input sensor assembly. Input Tray(s) Option Service Check 250 Sheet and 500 Sheet Trays Service Tip: Try all the other input paper sources to make sure they are properly feeding paper. For 990 Error Code- Service Tray X, X= displays the number of the tray that has a problem or needs service. FRU
  • Lexmark T620 | Service Manual - Page 98
    4069-5XX/7XX 24X Paper Jam message displays, paper jammed over the Pass Thru Sensor. (The printer displays the value of X for the paper tray where the error occurs. Example: 241 is a Paper Jam Tray 1) FRU 1 Pass Thru Sensor and Flag Assembly 2 Power Takeoff Shaft and Spring, Bevel Gear, Feedroll
  • Lexmark T620 | Service Manual - Page 99
    found, replace the paper low sensor assembly. If this does not correct the problem, replace the option system board. Tray X Empty message displays when Tray X has paper in the tray. FRU 1 Paper Out Sensor Flag 2 Paper Out Sensor (On Option System Board) Action Check the paper out sensor flag for
  • Lexmark T620 | Service Manual - Page 100
    to the base printer to obtain accurate results. Service Tip: Be sure the paper size switch is set to the correct paper size setting and the rear paper guides are in the correct locations for the size of paper installed in the high-capacity feeder tray. Service Tip: Check the other paper sources to
  • Lexmark T620 | Service Manual - Page 101
    AC Wiring Harness Action If the base printer works normally using the AC line cord from the AC wall outlet and does not work when using the AC jumper from the HCIT, check the AC jumper cord. If defective, replace the cord. If not defective, check the AC input and output receptacles and
  • Lexmark T620 | Service Manual - Page 102
    correctly and is not pushed down into the frame assembly or damaged. Be sure the high capacity feeder input tray autoconnect is properly connected to the high capacity feeder tray option board assembly. Check the option or base printer autoconnect for signs of damage. Repair the high capacity
  • Lexmark T620 | Service Manual - Page 103
    Feeder Option Control Board Action Check the voltage on J8-1 (green). The voltage measures +24 V dc. If incorrect, check the autoconnect system for any problems. +24 V dc must come from the base printer assembly. If no shorts are found, replace the high capacity feeder option control board. Check
  • Lexmark T620 | Service Manual - Page 104
    4069-5XX/7XX 24X Paper Jam message displays, paper jammed over the Pass Thru Sensor. (X=The printer displays the value of X for the paper tray where the error occurs. Example: 242 is a Paper Jam Tray 2) FRU 1 Pass Thru Sensor and Flag Assembly 2 Power Takeoff Shaft and Spring, Bevel Gear, Feedroll
  • Lexmark T620 | Service Manual - Page 105
    switch. If correct, replace the switch cable. Tray X empty message displays when there is paper in the high capacity feeder input tray. FRU 1 Paper Out Sensor Flag 2 Paper Out Sensor (On Option System Board) Action Check the paper out sensor flag for correct operation and installation. If correct
  • Lexmark T620 | Service Manual - Page 106
    Check the lower limit switch to make sure it is not closed (normally open). If incorrect, replace the switch. Check the lower limit switch cable for a short between pins 1 and 2. If incorrect, replace the cable. If correct, replace the high capacity feeder option control board. 2-78 Service Manual
  • Lexmark T620 | Service Manual - Page 107
    4069-5XX/7XX Paper from the high capacity feeder input tray does not reach the pass thru sensor. Service Tip: Check to be sure the paper in tray is within specifications. FRU 1 Auto compensator Assembly 2 Wear Strips Action Check the auto compensator pick arm rollers for sign of glazing, toner or
  • Lexmark T620 | Service Manual - Page 108
    the resistance between the following pins on the motor cable connector: Pins 1 (brown) and pin 2 (Yellow) The resistance measures between approximately 7.5 and 10.5 ohms. If incorrect, replace the motor assembly. If correct, replace the high capacity feeder option system board. 2-80 Service Manual
  • Lexmark T620 | Service Manual - Page 109
    moves in one direction only. FRU 1 DC Drive Motor Assembly High Capacity Feeder System Board Action Check the voltages at J1 on the high capacity system board. between J-1 and J-2. The resistance measures between 7.5 and 10.5 ohms. If incorrect replace the motor. If correct, replace the system
  • Lexmark T620 | Service Manual - Page 110
    (Orange) Letter J5-6 (Red) Legal J5-7 (Brown) A5 If any position does not measure continuity when selected, replace the paper size switch assembly. If the switch assembly is operating correctly, replace the high capacity feeder option control board. 24X Paper Jam Check Tray X Message displays when
  • Lexmark T620 | Service Manual - Page 111
    . If incorrect, replace the high capacity feeder option control board. Check the continuity of the sensor cable. If incorrect, replace the cable. If correct, replace the top optical sensor assembly. Tray X Paper Low Message displays when the high capacity feeder input tray is full or has adequate
  • Lexmark T620 | Service Manual - Page 112
    of damage. Check to make sure the belt is tracking correctly on the drive pulley, idler pulley and motor pulley. Check the tray drive belt for any signs of damage. Check to make sure the belt is tracking correctly on the lower section of the drive pulley and lead screw pulleys. 2-84 Service Manual
  • Lexmark T620 | Service Manual - Page 113
    cartridge, fuser or main drive gearbox. Look for any loose or worn parts in the developer drive assembly, main drive gearbox or fuser. Repair as necessary. A service error code 936 - Transport Motor may be displayed. Check problem, replace the main drive motor. Check the continuity of the
  • Lexmark T620 | Service Manual - Page 114
    4069-5XX/7XX FRU 4 Motor does not turn, no gear error code 936 or User message 201 Paper Jam displays. Action Check the voltages at on the system board. Pin number and voltage: J27-1 = +24 V dc J27-4 = +5 V dc (static) 0 V dc (when main drive motor running) J27-5 = + 5 V dc (
  • Lexmark T620 | Service Manual - Page 115
    the cable. If correct, replace the operator panel assembly. Operator Panel Display Service Check SERVICE TIP: The printer has detected a problem with the system board, operator panel cable or operator panel assembly if POST does not complete and the printer emits 5 beeps and stops in a continuous
  • Lexmark T620 | Service Manual - Page 116
    check with the following exception: Run the "SDRAM Memory Test" on page 3-15 from the menu if the SDRAM Memory card assembly is correctly installed and not broken or damaged. If the test fails, replace the SDRAM card assembly. If the problem continues, replace the system board. 2-88 Service Manual
  • Lexmark T620 | Service Manual - Page 117
    network model printers. Error Code 976 - Network Card X (X=Network card 1, 2, or 3) A 976 error code indicates an unrecoverable software error in network card x. Verify that network card x is correctly installed in the socket on the interconnect board and is properly grounded. If you find no problem
  • Lexmark T620 | Service Manual - Page 118
    post the message "Remove Paper Standard Bin," enter the Diagnostic Mode, select Output Bin Tests, select Sensor Tests and select Standard Bin. Check the sensor and flag for proper operation. If you find no problem with the sensor and flag, continue with the service check. Service Tip: Check to make
  • Lexmark T620 | Service Manual - Page 119
    . Service Tip: If more than a single output expander option is installed, check each one to see if the printer recognizes any single option as being installed. If the printer recognizes any of the output expander options then the base printer autoconnect system is operating correctly and the problem
  • Lexmark T620 | Service Manual - Page 120
    "Autoconnect - Top" on page 5-11. If the voltages are correct, reinstall the output expander unit and check the voltages at J1A and J1B on the connector. If correct, replace the output expander control board. If incorrect, replace the output expander assembly mechanical linkage. 2-92 Service Manual
  • Lexmark T620 | Service Manual - Page 121
    flag. 202 Paper Jam Open Rear Door Message displays. A sheet of paper feeds out to the standard bin even though bin x is selected. Paper exits half way out of the redrive. Service Tip: For this type of problem check the sub error codes. They can help isolate the problem. 202 Paper Jam messages can
  • Lexmark T620 | Service Manual - Page 122
    approximately 0 V dc. If incorrect, replace the sensor assembly. If this does not fix the problem, replace the control board. 271 Paper Jam - Check Bin X, POST complete, first sheet of paper feeds into Output Bin X. Note: Before performing the following checks run the Output Bin X Sensor Test and
  • Lexmark T620 | Service Manual - Page 123
    5XX/7XX 990 Service - BIN X FRU 1 D.C. Motor Mechanical Linkage Assembly 2 Output Expander Control Board Action Check the DC motor cable connector to be sure it is correctly installed at J4 on the output expander option board. If correct, disconnect J4 from the option board and check the resistance
  • Lexmark T620 | Service Manual - Page 124
    full FRU 1 Dual Output Bin X Sensor Assembly Control Board Action Check for correct installation of the sensor cable at J5 paper path stacker assembly is not functioning properly. Make sure the option(s) are installed correctly and the machine is configured correctly before attempting to service
  • Lexmark T620 | Service Manual - Page 125
    any single option as installed. If the printer recognizes any of the output options, the base printer autoconnect system is operating correctly. The problem is in the unrecognized option. Continue with this service check or go to the service check for the failing output option. FRU Action
  • Lexmark T620 | Service Manual - Page 126
    , a sheet of paper feeds out to the standard bin even though bin X is selected and paper exits half way out of the redrive assembly. Service Tip: For this type of problem check the "Base Printer Sub Error Codes" on page 2-10. They can help isolate the problem. A 202 paper jam message can also occur
  • Lexmark T620 | Service Manual - Page 127
    not be able to clear the message. FRU Action 1 Dual Output Bin Sensor Flag Check the flag for correct operation, (Upper Assembly) binding, broken parts or interference from the sensor cable. If incorrect, repair as necessary. 271 Paper Jam - Check Bin X, POST incomplete. FRU 1 Upper Pass
  • Lexmark T620 | Service Manual - Page 128
    then the base printer autoconnect system is operating correctly and the problem is in the unrecognized option. Continue with this service check or go to the service check for the failing output option. FRU 1 5-Bin Mailbox Option 2 Mechanical Linkage Assembly Action Check the autoconnects, cables
  • Lexmark T620 | Service Manual - Page 129
    V dc. If incorrect, replace the sensor assembly. If this does not fix the problem, replace the control board. 274 Paper Jam - Check Bin 4 displays Service Tip: When a 274 Paper Jam Check Bin 4 message displays, a problem exists with the top pass thru sensor assembly or the control board. FRU 1 Top
  • Lexmark T620 | Service Manual - Page 130
    control board. If correct, replace the Bin X sensor. If this does not fix the problem, replace the control board. Ready - Bin X Full displays and paper feeds into Bin X. FRU Action 1 Bin X Sensor Bin X Sensor Control Board Check the sensor flag for binds. Make sure the sensor flag is not in an
  • Lexmark T620 | Service Manual - Page 131
    4069-5XX/7XX Paper does not feed into the bin selected. 271 Paper Jam - Check Bin 1 displays. FRU 1 Deflector Deflector Spring Deflector Cover Deflector Cover Spring Shaft assemblies 2 Bin X Solenoid Assembly Control Board 3 Mechanical Linkage Motor Assembly Action Check all the bin parts for
  • Lexmark T620 | Service Manual - Page 132
    Service Error displays FRU 1 Mechanical Linkage DC Motor Assembly 2 Control Board Action Check the DC motor cable connector to be sure it is correctly installed at J2 on the control board. If correct, disconnect J2 from the control board and check linkage/ DC motor assembly. 2-104 Service Manual
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    7XX Paper Feed Service Check If you have a 936 Transport Motor Error go to the "Main Drive Service Check" on page 2-85. FRU 1 Alignment Assembly 2 Inner Deflector Action Check to ensure the alignment assembly is correctly attached to the left side frame and the mounting screws are tight. Check the
  • Lexmark T620 | Service Manual - Page 134
    locations and directions and using rough paper and short grain paper also causes double feeding. Make sure the counterbalance spring is not missing, loose or broken at the top of the auto compensator arm assembly. If you find a problem, replace the auto compensator assembly. 2-106 Service Manual
  • Lexmark T620 | Service Manual - Page 135
    roll or slick spots. If you find a problem, replace the pick roll assembly. Check to ensure the media that is being fed through the multipurpose tray assembly meets recommended paper specifications. Parallel Port Service Check Run the "Parallel Wrap Test" on page 3-16. Note: The Parallel Wrap Test
  • Lexmark T620 | Service Manual - Page 136
    5XX/7XX Printhead Service Check The printhead assembly does not contain any service replaceable parts or components. If service error code 930 displays, the wrong printhead is installed in the printer. Note: A 201 paper jam may also indicate a failing printhead. The paper may have jammed prior to or
  • Lexmark T620 | Service Manual - Page 137
    : Set to OFF. • PQET: Set to OFF. • Fuser Temperature: Set to NORMAL. • Test the printer using plain paper (20 lb) An incorrect printer driver for the installed software can cause problems. Incorrect characters could print and the copy may not fit the page correctly. Measure all voltages from the
  • Lexmark T620 | Service Manual - Page 138
    , replace the system board. Check the continuity of the HVPS cable. If incorrect, replace the cable assembly. If correct, replace the system board. FRU 1 Print Cartridge Action Check the print cartridge for any signs of damage, especially the PC drum contact on the cartridge. 2-110 Service Manual
  • Lexmark T620 | Service Manual - Page 139
    the front cable harness. Generally a 93x service error is posted if the printhead assembly fails and the printer does not give a blank copy symptom. The printhead used in the printer does not have a mechanical shutter as previous laser printers. The printer is interlocked through the front top cover
  • Lexmark T620 | Service Manual - Page 140
    or a contaminated shaft or bearings. Blurred print can also be caused by incorrect feeding from one of the input paper sources, paper trays, duplex option or envelope feeder. Check the high voltage contacts to ensure they are not bent, corroded or damaged. Replace as necessary. 2-112 Service Manual
  • Lexmark T620 | Service Manual - Page 141
    inch) apart 2 Lines spaced 22.32 mm (.882 inch) apart Lines mm (1.506 inch) apart 4 Lines spaced 44.64 mm (1.757 inch) apart 5 Lines spaced assembly main drive gearbox assembly Replace the FRUs in the following order: toner cartridge charge roll developer drive assembly Replace the toner cartridge
  • Lexmark T620 | Service Manual - Page 142
    the FRUs in the following order: toner cartridge main drive gearbox assembly Replace the redrive assembly. Replace the alignment assembly. Print Quality - Background Service Tip: Some background problems can be caused by rough papers, non-Lexmark toner cartridges or if the media texture is set to
  • Lexmark T620 | Service Manual - Page 143
    Voltage Contacts Action The printhead on the Lexmark T printers cannot be cleaned. Try another printhead if all other attempts fail to correct a background problem. Check the high voltage contact from the HVPS to the transfer roll. Check the transfer arm assembly right side bearing for any signs of
  • Lexmark T620 | Service Manual - Page 144
    not correct the problem, replace the system board. If J25-4 voltage is incorrect, check the front harness cable (J25-4 line). If there is not continuity, replace the harness cable. If correct, replace the system board. if this does not correct the problem, replace the HVPS. 2-116 Service Manual
  • Lexmark T620 | Service Manual - Page 145
    amount of graphics printed on the page. Banding is primarily due to a variation in the speed of the paper as it feeds through the printer, especially in the development and transfer process. Inspect the alignment assembly, main drive assembly and all other paper feed components for signs of wear
  • Lexmark T620 | Service Manual - Page 146
    , replace the system board. Turn the printer off and check the resistance between J25-7 and printer ground. The resistance measures approximately 0 ohms. If incorrect, make sure the system board is mounted correctly and securely grounded. If correct, replace the system board. 2-118 Service Manual
  • Lexmark T620 | Service Manual - Page 147
    and other parts inside the print cartridge. FRU 1 Hot Roll Fuser Assembly Action Check the fuser assembly for signs of toner contamination. The hot roll especially might cause toner to be retained and deposited on the page. Print Quality - Light Print Service Tip: Check the toner saver and print
  • Lexmark T620 | Service Manual - Page 148
    through the printer on the backside of the paper. FRU 1 Hot Roll Fuser Assembly 2 Transfer Roll Transfer Plate Assembly Action Toner is being carried out on the backside of the media. This problem is generally caused by a toner buildup on the fuser hotroll or backup roll. Check the fuser hotroll
  • Lexmark T620 | Service Manual - Page 149
    4069-5XX/7XX Smart Cartridge Contact Assembly Service Check Note: If you are unable to clear a "32-Unsupported Cartridge" User Error Message, make sure a Lexmark T print cartridge is correctly installed in the printer. The cartridge is easily identified by the contact board located on the right side
  • Lexmark T620 | Service Manual - Page 150
    the toner sensor. This service check is intended to be used when a 929 Service Error displays. FRU 1 Developer Drive Assembly 2 Front Harness Cable Action Incorrect operation of the developer drive assembly can cause the printer to display a 929 error code (Toner Sensor). Check the developer drive
  • Lexmark T620 | Service Manual - Page 151
    buildup. Service Tip: The transfer roll assembly is part of the Maintenance Kit and is replaced when a '80 Scheduled Maintenance" message displays. Ask the customer if they have replaced the transfer roll recently. CAUTION: Make sure the printer is powered Off before making any checks on the
  • Lexmark T620 | Service Manual - Page 152
    4069-5XX/7XX FRU 2 Left Transfer Arm Assembly 3 Right Transfer Arm Assembly 4 HVPS - 917 Error Code Action Check the left transfer roll arm assembly to make sure it is fastened and locked in the down position. If the arm is not locked down, check to ensure the arm is not broken and will lock into
  • Lexmark T620 | Service Manual - Page 153
    the option first remove the staple supply cartridge. Note: When replacing staples in the supply cartridge, discard any old staples in the cartridge and replace with a fresh strip. Problems with static electricity buildup FRU 1 Top Cover Action Check the top cover assembly to make sure the brush is
  • Lexmark T620 | Service Manual - Page 154
    autoconnect) J14A, J14B (top autoconnect) to the stapler card assembly to make sure they are attached securely. Check the voltages at the printer top autoconnect. If incorrect, remove the finisher option and go to "Autoconnect - Top" on page 5-11. If voltages are correct, reinstall the finisher
  • Lexmark T620 | Service Manual - Page 155
    4069-5XX/7XX Close Finisher Top Cover displayed - Unable to clear or reset message. (POST incomplete) FRU 1 Top Cover Assembly 2 Top Cover Switch Stapler Card Assembly Action Check the top cover assembly to ensure that it is actuating the top cover switch and the cover is opening and closing
  • Lexmark T620 | Service Manual - Page 156
    , observe the location of the ground lead from the stapler assembly and the finisher frame. Make sure the ground lead is correctly reattached. 990 Service Error Code - Check Bin X displayed - Post Incomplete Step 1 - During POST the stapler option does not try to home. Step 2 - During POST the
  • Lexmark T620 | Service Manual - Page 157
    4069-5XX/7XX Step 1 - During POST the stapler option does not try to home. FRU 1 Stapler Card Assembly Drive Motor Assembly Action Turn the printer off, disconnect the motor from J2 and check for continuity between J2 pins 1, 2, 5, and 6 on the cable and the motor case. If you get continuity,
  • Lexmark T620 | Service Manual - Page 158
    card. 281 Paper Jam - The paper feeds partway into the Standard Bin even if Finisher Option selected Note: When a 900 Service Error is displayed during POST the failure is usually in the stapler gearbox assembly or stapler cartridge.. FRU 1 DC Motor in Drive Gearbox Assembly Stapler Card Assembly
  • Lexmark T620 | Service Manual - Page 159
    upper deflector spring to make sure it is not loose or broken. 281 Paper Jam - Paper jams into stapler output bin. FRU 1 Center Stapler Bail 2 Upper Exit Shaft Assembly Lower Exit Shaft Assembly Exit Shaft Bearings Action Check the center stapler bail for any signs of broken parts, and that the
  • Lexmark T620 | Service Manual - Page 160
    this failure occurs, the following may also occur in the order shown: 1. Insert Staple Cartridge displayed. The stapler assembly may cycle or fire a few times. 2. 282 Stapler Jam displayed. The stapler assembly may try to cycle or fire. 3. 990 Service - Check Bin 1 displayed. 2-132 Service Manual
  • Lexmark T620 | Service Manual - Page 161
    the stapler assembly. It may be necessary to manually cycle the large gear on the side of the stapler assembly to release the cartridge holder. 6. Reinstall the stapler assembly with a new stapler cartridge holder and staples. Run the Finisher Feed Test to check the option. If the problem continues
  • Lexmark T620 | Service Manual - Page 162
    0 V dc 6 0 V dc 7 0 V dc 8 GND 9 +5V dc 10 0V dc Voltage Feeding +24 V dc +24 V dc +24 V dc +24 V dc 0 V dc 0 V dc Varies (0 V 1.5 V dc) +5V dc 0V dc If the voltages are correct, replace the stapler assembly. If the voltages are incorrect, replace the stapler board 2-134 Service Manual
  • Lexmark T620 | Service Manual - Page 163
    of damage. Paper feeds into finisher option output tray - Paper is not stapled Paper does not align with the right side. FRU 1 Paper Alignment Wheel (if installed) Paper Alignment Pad 2 Paper Wheel Aligner Assembly Action Check to make sure the gamma wheel aligner assembly is operating correctly
  • Lexmark T620 | Service Manual - Page 164
    Used 4 Ground 5 +5 V dc 6 +5 V dc Voltage Feeding (Motor Running) +24 V dc Should vary when motor running. Should vary when motor running +5 V dc If the voltages are correct, replace the gearbox drive assembly. If the voltages are incorrect, replace the stapler board. 2-136 Service Manual
  • Lexmark T620 | Service Manual - Page 165
    the left side bail assembly for any signs of binding, missing, or broken parts. Check the stapler gearbox assembly for correct operation. Sheets are transported into output tray but not stapled. FRU 1 Sol 1, Stapler Drive Stapler Assembly Stapler Card Assembly Action Disconnect Sol 1 cable from
  • Lexmark T620 | Service Manual - Page 166
    4069-5XX/7XX 2-138 Service Manual
  • Lexmark T620 | Service Manual - Page 167
    Menu - Used to help test and diagnose printer and attached option problems. Configuration Menu - Contains a set of menus, settings, and operations that are generally used to configure the printer for operation. Such menu setting as Resetting the Maintenance Count is included in this menu. The
  • Lexmark T620 | Service Manual - Page 168
    Wrap (only displayed if printer configured with Serial Port) 9.Serial 1 Wrap (only displayed if serial port) available via PCl slot 1) 10.Serial 2 Wrap (only 4.Motor Test 5.Duplex Feed 1 6.Duplex Feed 2 Refer to Test Page "Hardware Tests" on page 3-14 "Duplex Tests" on page 3-8 3-2 Service Manual
  • Lexmark T620 | Service Manual - Page 169
    installed) b. MP Feeder c. Envelope Feeder (if installed) Output Bin Tests If selected, the following menu selections are available: 1.Feed Tests If selected, the following menu selections are available: a. Standard Bin b. Output Bin x (x=Output Bin 1,2,3,4,5,6,7,8,9, or 10 when installed) 2.Feed to
  • Lexmark T620 | Service Manual - Page 170
    If selected, the following menu selections are available: 1.Defaults 2.Page Count 3.Permanent Page Count (viewing) 4.Serial Number (printer serial number) 5.Envelope Enhance 6.Engine Setting 1 7.Engine Setting 2 8.Engine Setting 3 9.Engine Setting 4 10.Configuration ID 11.Edge to Edge 12.Parallel
  • Lexmark T620 | Service Manual - Page 171
    Count Value (Viewable only) Reset Maintenance Count Print Quality Test Pages Download Emuls (only displayed if at least one downloaded emulator is installed) Factory Defaults Exit Configuration Menu Refer to Test Page "Restore EP Factory Defaults" on page 3-32 "Error Log" on page 3-13 "Exiting the
  • Lexmark T620 | Service Manual - Page 172
    Diagnostic Mode: 1. Turn the printer off. 2. Press and hold the Go and Return buttons. 3. Turn the printer on. 4. Release the Test/Test Passed" message displays if the test passes and the power indicator turns on solid. - "Quick Disk Test/Test Failed" message displays if the test 3-6 Service Manual
  • Lexmark T620 | Service Manual - Page 173
    menu, press Return/Stop. To continue with the test, press Go. - If go is selected, "Disk Test/Clean/BAD:000000 00%" message displays. The screen updates periodically indicating the percentage of test completed and the number of bad blocks found. 3. The power indicator blinks during the test. The
  • Lexmark T620 | Service Manual - Page 174
    Self Test" displays. - Once the printer is idle, the emulation can be downloaded again. 4. Program the download emulation into the code overlay card assembly again. 5. If these steps do not resolve the problem, replace the code overlay card assembly and download the emulation again. Duplex Tests
  • Lexmark T620 | Service Manual - Page 175
    - The single Duplex Quick test cannot be canceled. The printer attempts to print the Quick Test Page from the default paper source. If the default paper source only supports envelopes, then the page is printed from Tray 1. Check the Quick Test Page for the correct offset between the placement of the
  • Lexmark T620 | Service Manual - Page 176
    -5XX/7XX To run the Duplex Motor Test: 1. Select Motor Test from the Duplex Tests menu. The duplex motor test continues to run until the printer is powered off. - The power indicator blinks while the test is running. - The duplexer runs the motor at a high speed and then a low speed and
  • Lexmark T620 | Service Manual - Page 177
    4069-5XX/7XX The following appears on the printer display: DUPLEX MOTOR AA BB CC DD EE FF To pass the test the following results must display: AA = 00 BB = in the range of
  • Lexmark T620 | Service Manual - Page 178
    indicator blinks while the paper is feeding. - "Duplex Feed 2/Feeding" message displays while the paper is feeding through the printer. - "Duplex Feed 2/Clear Paper" message displays when the paper reaches the duplex paper stop position 2 and the power indicator turns on solid. 3-12 Service Manual
  • Lexmark T620 | Service Manual - Page 179
    4069-5XX/7XX Error Log Viewing the Error Log The error log is helpful to the servicer by providing a history of printer errors. The error log contains the 12 most recent errors that have occurred on the printer. The most recent error displays in position 1 and the oldest error displays in position
  • Lexmark T620 | Service Manual - Page 180
    the display. 2. Press each button one at a time and a CL (Closed) displays in place of an OP. The proper operation of each button can be checked. 3. Press Return/Stop to cancel the test. 3-14 Service Manual
  • Lexmark T620 | Service Manual - Page 181
    , and the final results display. If the test fails, the message SDRAM Error, displays for approximately three seconds and the failure count increases by 1. ROM Memory Test The ROM Memory Test is used to check the validity of the system board code and fonts. To run the ROM Memory Test: 1. Select ROM
  • Lexmark T620 | Service Manual - Page 182
    of the following messages displays for approximately three seconds: Sync Busy Error Byte Interrupt Request Error Strobe Interrupt Request Error Init Fail Error Init Busy Error Init Rise Error Host Busy Error RAM Data FF Error RAM Data AA Error RAM Data 00 Error RAM Data 55 Error 3-16 Service Manual
  • Lexmark T620 | Service Manual - Page 183
    /7XX DMA Count Error DMA Address Error DMA Interrupt Error DMA Memory Error DMA Background Error Clear Init Rise Error False Init Rise Error Autofeed Rising Interrupt Error Clear Autofeed Rise Error False Autofeed Rise Error Autofeed Falling Interrupt Error Clear Autofeed Fall Error Once the maximum
  • Lexmark T620 | Service Manual - Page 184
    Data 232 Error Data 422 Error FIFO Error DSR Error DSR PIO Error DSR Interrupt Error CTS Error CTS PIO Error CTS Interrupt Error Once the maximum count is reached the test stops. The power indicator goes on solid and the final results display. Press Return/Stop to exit the test. 3-18 Service Manual
  • Lexmark T620 | Service Manual - Page 185
    the servicer observe the paper path as media is feeding through the printer. A blank sheet of paper feeds through the printer as the laser turns off during this test. The only way to observe the paper path is to open the lower front door that is used to access the envelope or multipurpose feeder
  • Lexmark T620 | Service Manual - Page 186
    . No information will be printed on the test pages as the printhead is not turned on during the feed test. To run the Feed to all Bins Test: 1. Select Feed to all Bins Test from the Menu. 2. The media feeds from the default paper source. 3. The printer feeds a separate piece of media to the standard
  • Lexmark T620 | Service Manual - Page 187
    bin because the printhead is not turned on during this test. This test can be run from any input source and will support any size paper or envelope supported by the printer. To run the Output Bin Feed Test: 1. Select Feed Test from the Output Bin Test menu. 2. Select the output bin you want the
  • Lexmark T620 | Service Manual - Page 188
    displayed: Standard Bin F=OP F=Standard Bin's Bin Full Sensor 5. Once the screen is displayed, manually actuate the sensor flag to check the Bin Full Sensor. When the sensor is closed, CL displays, and when the sensor is screen is displayed: HC Bin x TP=OP P=OP F=OP NF=OP 3-22 Service Manual
  • Lexmark T620 | Service Manual - Page 189
    sensor (upper part of dual sensor) 5. Once the screen is displayed, manually actuate each of the sensors of the High-Capacity Stacker. When the sensor near full L=FL, the bin is full 5. Once the screen is displayed, manually actuate each of the sensors of the High-Capacity Stacker, except for the
  • Lexmark T620 | Service Manual - Page 190
    Tests, StapleSmart Finisher Option Feed Tests This test feeds eight blank sheets of paper through the finisher option checked by actuating this flag. Staple C=CL SL=CL SP=CL H=CL C=Cartridge Present Sensor SL=Staple Low Sensor SP=Self Priming Sensor H=Home Signal Sensor 3-24 Service Manual
  • Lexmark T620 | Service Manual - Page 191
    Sensor: Select Sensor Tests from the Finisher menu. Select Bin Level from the Sensor menu. The following screen is displayed and each sensor can be checked. Bin Level EM=OP NF=OP F=OP EM=Finisher Bin Empty Sensor NF=Finisher Bin Full Sensor F=Finisher Bin Near Full Sensor Diagnostic Aids 3-25
  • Lexmark T620 | Service Manual - Page 192
    output bin and stapled. No information is printed on the test pages as the printhead is not turned on. Eight sheets of paper feed and then the pages staple. Note: This test can be run using any of the paper sizes supported by the printer. The media is fed from the selected source and then outputted
  • Lexmark T620 | Service Manual - Page 193
    Feed Test: 1. Select Finisher Tests from the menu. 2. Select Feed Tests from Finisher Tests menu. 3. The feed test runs (may take a minute for the test to complete). 4. Eight sheets of paper feed Test Staple C=CL SL=CL SP=CL H=CL C=Cartridge Presence Sensor SL=Staple Low Sensor SP=Self=Priming
  • Lexmark T620 | Service Manual - Page 194
    on the printer. When the test is selected from the diagnostic menu, the following is displayed: Diverter Test Running This is a single test. The test terminates upon completion. Registration The Video Frequency Test runs automatically when Registration is selected from the menu. 3-28 Service Manual
  • Lexmark T620 | Service Manual - Page 195
    Margin: -25 to +25 Left Margin: -25 to +25 Right Margin: -10 to +10 To set Registration: 1. Select Registration from the Diagnostic menu. 2. The Top margin but not saved via the Select button, then the default is changed. The quick test page prints with the new value. 4. To verify that the margin
  • Lexmark T620 | Service Manual - Page 196
    on A4 or Letter paper only. 5. To exit the Registration menu, press Return. Printer Setup Setting the Page Count This lets the servicer change the page count from the diagnostic menu. This is used whenever the system board is replaced because this board contains the printer NVRAM Memory where the
  • Lexmark T620 | Service Manual - Page 197
    4069-5XX/7XX Maintenance Page Count This counter is reset by the servicer after a "80 Scheduled Maintenance" message displays (300K copies) and a maintenance kit is installed. To view the Maintenance Page Count: 1. Enter the Configuration menu. Turn the machine off, press and hold the Return and
  • Lexmark T620 | Service Manual - Page 198
    low grade papers or problems with letterheads on some types of media. The fuser temperature can be adjusted as follows: • NORMAL • LOWER • LOWEST Warm Up Time You can change the amount of time the printer warms up before allowing pages to print by changing this setting from 0 to 5. The factory sets
  • Lexmark T620 | Service Manual - Page 199
    Roll The charge roll can be adjusted to: • LOW • MEDIUM • HIGH Print Tests The purpose of the diagnostic Print Tests is to verify that the printer can print on media from each of the installed input options. Each of the installed options is listed in the following order in the menu
  • Lexmark T620 | Service Manual - Page 200
    selected to cancel the test. Check each Test Page from each source to assist in Print Quality and Paper Feed problems. Print Quality Test Pages The purpose of this diagnostic function is to allow printing of the print quality test pages with the toner cartridge lockout function disabled. The print
  • Lexmark T620 | Service Manual - Page 201
    one copy of the Three Test pages. If you want more than one copy, perform these steps again. Page 1 of the Print Quality Test pages contains: Printer Information: • Page Count, Printhead Type, Installed Memory, Staple Cartridge, Processor Speed, Serial Number, Engine, Boot, Panel, Font and Output
  • Lexmark T620 | Service Manual - Page 202
    and features such as RAM memory card assembly, optional input paper trays, envelope feeder, duplexer, output bins, flash or disk. • Printer information such as serial number, page count, installed RAM, engine code level, RIP code level, envelope feeder code level, tray 1-5 code levels, output bin
  • Lexmark T620 | Service Manual - Page 203
    the pick assembly can be replaced. However, the counterbalance spring is not to be considered an adjustment for feeding problems. Autoconnect System, Paper Tray Options, Envelope Feeder and Output Expander Operations Electrical Autoconnect Cabling and Connectors The printer options make electrical
  • Lexmark T620 | Service Manual - Page 204
    the option is installed below the printer. The paper input sensor is located in the rear of the duplex unit under the input paper guide. The rear cover open switch is located on the rear cover assembly. The paper exit sensor is located on the left frame assembly. The jam removal tray open switch is
  • Lexmark T620 | Service Manual - Page 205
    and the parts cannot be individually replaced as in previous Lexmark laser printers. The thermal fuse (two fuses in series) protects the fuser assembly and surrounding parts from ignition in the event of a failure in the fuser control circuitry by opening the AC circuit to the lamp. The thermistor
  • Lexmark T620 | Service Manual - Page 206
    not reprint these sheets. Error Message 201 - Paper Jam - Remove Cartridge This message indicates the paper is jammed between the printer input and exit sensors. This condition can be caused by the paper exiting the input sensor too late or jamming in the fuser assembly prior to activating the exit
  • Lexmark T620 | Service Manual - Page 207
    7XX Error Message 202 - Paper Jam - Open Rear Door This message indicates the paper is jammed at or near the printer exit sensor located in the fuser assembly. This can be caused by the paper arriving at the sensor too late, the paper jammed in the fuser assembly or jammed exiting the fuser assembly
  • Lexmark T620 | Service Manual - Page 208
    all accumulated sheets should not be removed during the jam clearance procedure. If the sheets are removed, then the printer does not reprint these sheets. Error Message 250 - Paper Jam - Check MP Feeder The paper is jammed in the multipurpose feeder and has not reached the base machine input sensor
  • Lexmark T620 | Service Manual - Page 209
    and top cover to remove the jam. Note: If the paper is still covering the finisher pass thru sensor, then a 271 Error Message is displayed. A 281 paper jam message may also be displayed when there is a problem with the stapler assembly or the stapler card. Note: When the StapleSmart Finisher option
  • Lexmark T620 | Service Manual - Page 210
    4069-5XX/7XX 3-44 Service Manual
  • Lexmark T620 | Service Manual - Page 211
    electronic products use parts that are known to be sensitive to electrostatic discharge (ESD). To prevent damage to ESD-sensitive parts, follow the instructions below in addition to all the usual precautions, such as turning off power before removing logic boards: • Keep the ESD-sensitive part in
  • Lexmark T620 | Service Manual - Page 212
    whenever you remove or replace the duplex motor or loosen the motor or drive belt idler pulley. Service Tip: Excessive belt tension can result in stalling the duplex motor. Too little belt tension can screws being careful to maintain the adjustment. 4. Reassemble the duplex unit. 4-2 Service Manual
  • Lexmark T620 | Service Manual - Page 213
    between sheets of paper as they are fed through the printer. This adjustment does not reduce the printer overall performance such as pages per minute, displays, it indicates a factory setting to minimum gap. Select a value and run several copies of the media that displays a curl problem. It may take
  • Lexmark T620 | Service Manual - Page 214
    should only be printed on letter or A4 paper from Tray 1. The Quick Test Page consists of alignment diamonds, horizontal lines that can be used for skew adjustment, page count setting, printer serial number code levels and print registration settings. 6. Check the Quick Test Page for any sign of
  • Lexmark T620 | Service Manual - Page 215
    adjustment screw out far enough to allow the alignment assembly to be removed from the printer. It is not necessary to completely remove the screw. 4. Install the new alignment assembly. Turn the reference screw clockwise with a 7 mm nut driver until it touches the back of the reference plate
  • Lexmark T620 | Service Manual - Page 216
    without loosening the locknut. Turn the screw a few turns and print a copy of the Quick Test Page as you check the diamonds on the left margin. Continue adjusting the screw as you check the results of each adjustment on a new test page until you obtain the results you want. 4-6 Service Manual
  • Lexmark T620 | Service Manual - Page 217
    contains screw types, locations, and quantities necessary to service the printer. Each screw callout in the removal procedure graphic displays developer drive assembly stacker duct to frame cartridge hold down assembly MPT deflector interconnect board shield ground laser cover deflector gear
  • Lexmark T620 | Service Manual - Page 218
    M3.5x8 mm spring, cartridge load Thread Cutting system board mounting 1 mounting 2 (front) integrated tray ITC board mounting 2 stacker support to right attach 2 side frame M3.5x12 mm paper alignment Thread Cutting assembly mounting 2 toner cartridge guide track mounting 2 left side
  • Lexmark T620 | Service Manual - Page 219
    board to interconnect shield ground attach 1 lower stacker duct mounting 1 ground cables to ground attach 1 (center pan - front) cable clip (main drive gearbox, BTM) mounting 2 fuser screw mounting 7 LVPS mounting 2 auto compensator hanger bracket mounting 1 Repair Information 4-9
  • Lexmark T620 | Service Manual - Page 220
    stacker duct mounting 1 system board mounting 2 system board to shield mounting 2 system board mounting 2 in pan mounting 2 shield ground attach 1 LVPS mounting 2 fuser cover mounting 2 cable clip mounting 2 outer shield mounting 6 INA cover mounting 4 4-10 Service Manual
  • Lexmark T620 | Service Manual - Page 221
    4069-5XX/7XX Reference Number Screw Type Location M3.5x8 mm autocompensator Plastite Thread Forming Purpose Qty mounting 3 M3.5x10 mm right side cover mounting 1 Plastite Thread Forming right side frame to pan attach 3 left side frame to pan attach 1 extra screw mounting 2 M3.
  • Lexmark T620 | Service Manual - Page 222
    pinching wires, obstructing the paper path, or restricting mechanical movement. Covers Left Door 1. Open the upper and bottom front covers. 2. Press the two left door latch buttons (A) and open the left door. 3. Release the left door from the rear hinges and remove the door. 4-12 Service Manual
  • Lexmark T620 | Service Manual - Page 223
    4069-5XX/7XX Right Cover 1. Open the upper and bottom front covers. 2. Remove the print cartridge. 3. Release the cover latch (A) and remove the right cover mounting screw (B). Repair Information 4-13
  • Lexmark T620 | Service Manual - Page 224
    4069-5XX/7XX 4. Remove the redrive assembly. 5. Remove the right side cover mounting screw (B). 6. Remove the right side cover. 4-14 Service Manual
  • Lexmark T620 | Service Manual - Page 225
    4069-5XX/7XX Upper Front Cover 1. Raise the upper front cover. 2. Remove the upper front cover mounting screws (A). 3. Rotate the cover upward to allow the rear cover hinges to clear the mounting slots and remove the cover. Repair Information 4-15
  • Lexmark T620 | Service Manual - Page 226
    4069-5XX/7XX Laser Assembly Cover 1. Remove the left door. 2. Remove the right cover. 3. Remove the rear paper deflector. 4. Press the fuser wiper cover latch and remove the cover. 5. Remove the paper full sensor flag from the mounting bracket. Use care when removing the flag as it can be easily
  • Lexmark T620 | Service Manual - Page 227
    4069-5XX/7XX System Board 1. Remove the outer EMC shield. 2. Disconnect all cables to the system board. 3. Remove the system board mounting screws (A). 4. Remove the serial port mounting hex studs (B). 5. Remove the parallel port mounting screws(C). 6. Remove the USB connection screw (D). 7. Remove
  • Lexmark T620 | Service Manual - Page 228
    the system board as indicated in the photo and illustration below. 2. To replace the card assembly, align guide pins and locating pin with corresponding holes. 3. Carefully press the card assembly into place. Warning: To avoid damage to the connectors, do not use excessive force. 4-18 Service Manual
  • Lexmark T620 | Service Manual - Page 229
    4069-5XX/7XX Repair Information 4-19
  • Lexmark T620 | Service Manual - Page 230
    Drive Assembly 1. Remove the inner EMC shield. 2. Remove the developer drive assembly mounting screws (A). 3. Remove the developer drive assembly. Note: Be sure the developer drive assembly wheel aligns with the hub on the main drive assembly when reinstalling the assembly. 4-20 Service Manual
  • Lexmark T620 | Service Manual - Page 231
    cables and connectors. 4. Remove the two duplex board mounting screws and remove the duplex board. Duplex Front Cover Assembly 1. Lift the base printer from the duplex assembly. 2. Remove the four duplex board cover mounting screws and disconnect the duplex cover door switch cable at connector J6
  • Lexmark T620 | Service Manual - Page 232
    guides and remove the guides. 4. Remove the four mounting screws on the right side of the duplex frame assembly. 5. Position the duplex assembly on its side. 6. Gently release the center drive deflector assembly Belts" on page 4-2 whenever you remove or replace the duplex motor. 4-22 Service Manual
  • Lexmark T620 | Service Manual - Page 233
    4069-5XX/7XX EMC Shields Inner EMC Shield 1. Remove the left door. 2. Remove the outer EMC shield. 3. Remove all option boards from the connector board slots. 4. Remove the inner EMC shield mounting screws (A) and (B). 5. Remove the inner EMC shield. Repair Information 4-23
  • Lexmark T620 | Service Manual - Page 234
    4069-5XX/7XX Outer EMC Shield 1. Remove the left door. 2. Loosen the outer EMC shield mounting screws (A) and remove the shield. 4-24 Service Manual
  • Lexmark T620 | Service Manual - Page 235
    4069-5XX/7XX Fan Main Fan 1. Remove the top rear cover. 2. Remove the inner EMC shield. 3. Remove the fan shroud (A). 4. Note the routing of the main fan cable (B) and disconnect the cable from the system board at connector J5. Repair Information 4-25
  • Lexmark T620 | Service Manual - Page 236
    Assembly 1. Remove the left and right side frames. 2. Remove the EP frame assembly. Left Side Frame 1. Remove the main drive assembly. 2. Remove the upper front cover hinge assembly. 3. Remove the mulitpurpose tray/lower deflector assembly. 4. Remove the paper alignment assembly. 4-26 Service Manual
  • Lexmark T620 | Service Manual - Page 237
    4069-5XX/7XX 5. Remove the left side frame mounting screws (A). Repair Information 4-27
  • Lexmark T620 | Service Manual - Page 238
    4069-5XX/7XX 6. Place the printer on its back and remove the left side frame mounting screws (A). 7. Remove the left side frame. 4-28 Service Manual
  • Lexmark T620 | Service Manual - Page 239
    Frame 1. Remove the right side cover. 2. Remove the LVPS. 3. Remove the multipurpose tray assembly. 4. Disconnect the auto compensator arm bias spring from the right side frame. 5. Remove the and remove the right side frame. CAUTION: Be sure the fuser assembly has cooled before working on any of the
  • Lexmark T620 | Service Manual - Page 240
    4069-5XX/7XX Fuser 1. Remove the redrive assembly. 2. Loosen the fuser mounting screws (A) and remove the fuser. 4-30 Service Manual
  • Lexmark T620 | Service Manual - Page 241
    pressure against the other end of the lamp therefore care must be used when removing the lamp from the fuser. Grip the lamp by the ceramic end piece and remove it from the fuser assembly. Be careful not to touch the glass as skin oils and acids can reduce the life of the
  • Lexmark T620 | Service Manual - Page 242
    the fuser cover assembly. 3. Remove the fuser lamp. Use care when handling the lamp. 4. Disengage the hot roll bearing clips to free the fuser frame walls. 5. Gently apply outward pressure on the left and right fuser side frames (A) to release the detack housing assembly (B). 4-32 Service Manual
  • Lexmark T620 | Service Manual - Page 243
    Plate 1. Remove the upper paper deflector. 2. Remove the fuser transfer roll. 3. Remove the inner paper deflector. 4. Lift the left side of the fuser transfer plate (A) and move the plate to the left to clear the right side from its mounting. 5. Remove the fuser transfer plate. Repair Information
  • Lexmark T620 | Service Manual - Page 244
    Conditioner Solenoid 1. Remove the fuser assembly. 2. Remove the solenoid mounting screw (A). 3. Disconnect the solenoid link (B). 4. Remove the solenoid from the fuser assembly. Note: Do the "Fuser Solenoid Adjustment" on page 4-3 whenever you replace the fuser solenoid. 4-34 Service Manual
  • Lexmark T620 | Service Manual - Page 245
    from the cable connectors. 5. Remove the lower exit guide assembly. 6. Remove the sensor/flag assembly from the lower exit guide assembly Fuser Exit Sensor Flag Assembly 1. Remove the fuser cables cover. 2. Disconnect the exit sensor from the fuser cable connector. 3. Remove the exit sensor flag
  • Lexmark T620 | Service Manual - Page 246
    1. Remove the fuser assembly. 2. Remove the fuser cover assembly. 3. Remove the fuser detack housing assembly. 4. Disconnect the sensors from the cable connectors. 5. Gently apply outward pressure on the left and right fuser side frames to release the lower exit guide assembly. 4-36 Service Manual
  • Lexmark T620 | Service Manual - Page 247
    4069-5XX/7XX High Voltage Power Supply 1. Remove the inner paper deflector. 2. Remove the toner sensor cable from the retainer (A) on the front tab from the center pan and remove the HVPS. Integrated Tray Compensator Assembly 1. Remove the paper tray. 2. Remove the left door. Repair Information 4-37
  • Lexmark T620 | Service Manual - Page 248
    8. Disconnect the compensator sensor cable (C) from the assembly. 9. Remove the compensator assembly mounting screw (D). 10. Remove the integrated tray compensator assembly. Integrated Tray Compensator Pick Roll Assembly 1. Remove the paper tray. 2. Place the printer on its side. 4-38 Service Manual
  • Lexmark T620 | Service Manual - Page 249
    4069-5XX/7XX 3. Locate the compensator assembly on the bottom of the printer and pull the compensator arm away from the printer. 4. Unsnap the pick roll assembly (D) from its mounting and remove. Repair Information 4-39
  • Lexmark T620 | Service Manual - Page 250
    4069-5XX/7XX Interconnect Board Assembly 1. Remove the inner EMC shield. 2. Remove the LVPS. 3. Disconnect all cables (A) from the interconnect board. 4-40 Service Manual
  • Lexmark T620 | Service Manual - Page 251
    4069-5XX/7XX 4. Place the printer on its back and remove the mounting screws (B). Note: Go to "Interconnect Board" on page 5-4 to identify the correct jumper locations for your printer. 5. Remove the interconnect board assembly. Repair Information 4-41
  • Lexmark T620 | Service Manual - Page 252
    screws (A) from the rear of the bottom pan. 3. Pull the LVPS assembly from the right side of the printer. Initial resistance is felt as the automate plug disconnects. 4. Press the release latch on the fuser lamp cable connector and disconnect from the LVPS. 5. Remove the LVPS. 4-42 Service Manual
  • Lexmark T620 | Service Manual - Page 253
    inner EMC shield. 2. Remove the gear guard. 3. Remove the developer drive assembly. 4. Remove the transfer shaft (A) through the bottom of the printer. 5. Remove all cables from the cable clamps (B) on the main drive assembly. 6. Remove the ground cables (F). Be sure to reinstall the ground cables
  • Lexmark T620 | Service Manual - Page 254
    4069-5XX/7XX 10. Remove the main drive assembly. Note: Do not remove the screws (E) on the main drive assembly. Be sure the main drive assembly gear shaft aligns with the hub on the left side frame when reinstalling the main drive assembly. 4-44 Service Manual
  • Lexmark T620 | Service Manual - Page 255
    4069-5XX/7XX Main Drive Motor 1. Remove the main drive assembly. 2. Remove the main drive motor mounting screws (A). 3. Remove the main drive motor. Repair Information 4-45
  • Lexmark T620 | Service Manual - Page 256
    Assembly 1. Open the multipurpose tray to a position that allows the left and right tray hinge slots (A) to align with the rectangular mounting posts (B). Pull upward on each tray hinge to remove the tray from the two mounting posts. Warning: Be careful not to break the hinges. 4-46 Service Manual
  • Lexmark T620 | Service Manual - Page 257
    4069-5XX/7XX 2. Remove the upper deflector. 3. Remove the solenoid mounting screw. 4. Remove the screws (A) mounting the multipurpose tray/lower deflector assembly. 5. Remove the multipurpose tray/lower deflector assembly. Repair Information 4-47
  • Lexmark T620 | Service Manual - Page 258
    4069-5XX/7XX Operator Panel Assembly 1. Remove the upper front cover. 2. Disconnect the operator panel cable. 3. Gently press the operator panel lens tabs (A) and remove the operator panel. 4-48 Service Manual
  • Lexmark T620 | Service Manual - Page 259
    the rectangular window in the cover hinge pivot arm. 7. Snap the operator panel into the upper front cover. 8. Be sure the toroid is on the opposite end of the cables near the system board connectors. 9. Route the cables through the printer and down the inside of the system board shield. 10.Plug the
  • Lexmark T620 | Service Manual - Page 260
    4069-5XX/7XX Optional 250/500 Paper Tray Assembly Note: Remove the printer and other paper feed options to access the failing optional paper tray assembly. Paper Tray Compensator Assembly 1. Remove the printer and other paper feed options. 2. Disconnect the compensator assembly bias spring from the
  • Lexmark T620 | Service Manual - Page 261
    4069-5XX/7XX Paper Alignment Assembly 1. Remove the upper paper deflector assembly. 2. Remove the inner paper deflector assembly. 3. Release the input paper sensor from its mounting and remove. 4. Remove the left door. 5. Remove the paper alignment assembly mounting screws (A). Repair Information 4-
  • Lexmark T620 | Service Manual - Page 262
    4069-5XX/7XX 6. Locate the paper alignment assembly reference adjustment screw (B) through the left frame and remove the screw. 7. Remove the paper alignment assembly. Note: Do the "Paper Alignment Assembly Adjustment" on page 4-5 when you reinstall the assembly. 4-52 Service Manual
  • Lexmark T620 | Service Manual - Page 263
    4069-5XX/7XX Paper Deflectors Inner Paper Deflector Assembly 1. Remove the paper tray. 2. Remove the upper deflector assembly. 3. Place the printer on its side. 4. Remove the lower deflector assembly. 5. Gently pry the inner paper deflector from the left and right mounting posts (A) located on the
  • Lexmark T620 | Service Manual - Page 264
    the paper size sensing board cable from the board. 2. Remove the two paper size sensing board mounting screws (A). 3. Remove the paper size sensing board. Pick Roll 1. Remove the upper paper deflector. 2. Release the pick roll retaining tab and slide the pick roll off the shaft. 4-54 Service Manual
  • Lexmark T620 | Service Manual - Page 265
    (4069-520/52n) 1. Remove the laser assembly cover. 2. Disconnect the printhead cables (A) from the printhead 3. Remove the printhead mounting screws (B). Note: Do the "Printhead Assembly Adjustment" on page 4-4 whenever you remove or replace the printhead assembly or loosen the mounting screws
  • Lexmark T620 | Service Manual - Page 266
    ) 1. Remove the laser assembly cover. 2. Disconnect the printhead cables (A) from the printhead assembly and remove the printhead. 3. Disconnect the printhead fan cable from the system board. 4. Remove the printhead mounting screws (B). Do the "Printhead Assembly Adjustment" on page 4-4 whenever you
  • Lexmark T620 | Service Manual - Page 267
    4069-5XX/7XX Redrive Assembly 1. Remove the redrive door assembly. 2. Remove the redrive exit cover. 3. Remove the redrive assembly mounting screws (A). 4. Release the redrive assembly mounting latches (B) and remove the redrive assembly. Repair Information 4-57
  • Lexmark T620 | Service Manual - Page 268
    4069-5XX/7XX Smart Cartridge Contact Assembly 1. Disconnect smart cartridge cable. 2. Remove print cartridge. 3. Remove transfer plate. 4. Unlatch smart cartridge contact assembly (A) from the right frame assembly. 5. Remove smart cartridge contact (B). 4-58 Service Manual
  • Lexmark T620 | Service Manual - Page 269
    4069-5XX/7XX Toner Sensor 1. Remove the right side cover. 2. Remove the toner sensor mounting screw (A). Disconnect the toner sensor cable and remove the toner sensor. Repair Information 4-59
  • Lexmark T620 | Service Manual - Page 270
    printer. Upper Paper Deflector Assembly 1. Open the multipurpose tray and remove the tray from the two mounting posts. 2. Gently release the upper deflector assembly latch from its mounting on the right side frame and slide to the right. 3. Remove the upper deflector assembly. 4-60 Service Manual
  • Lexmark T620 | Service Manual - Page 271
    4069-5XX/7XX Upper Front Cover Hinge Assembly 1. Remove the upper front cover. 2. Remove the laser assembly cover. 3. Remove the C-clips (A) from the upper front cover hinge assembly left and right hinge pins and remove the pins. Note the pin orientation and the C-clip location on the inside of each
  • Lexmark T620 | Service Manual - Page 272
    Assembly 1. Remove the upper front cover. 2. Remove the operator panel. 3. Remove the inner EMC shield. 4. Pull up on the switch (A) to remove from the mounting posts (B). 5. Note the routing of the interlock switch assembly cable and disconnect the cable on the system board. 4-62 Service Manual
  • Lexmark T620 | Service Manual - Page 273
    4069-5XX/7XX 5. Connector Locations Low Voltage Power Supply Connector CN3 Interconnect Board Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Signal +5 V dc +5 V dc Ground Ground Ground Ground +24 V dc +24 V dc Heat on +5 V dc +5 V dc Ground Ground
  • Lexmark T620 | Service Manual - Page 274
    4069-5XX/7XX 5-2 Service Manual
  • Lexmark T620 | Service Manual - Page 275
    4069-5XX/7XX High Voltage Power Supply Connector CN1 System Board Pin No. 1 2 3 4 5 6 7 8 Signal Developer PWM +24 V dc Return Charge PWM +24 V dc IN TX PWM TX Enable TX CUR PWM SVRO OUT Connector Locations 5-3
  • Lexmark T620 | Service Manual - Page 276
    J4 Autoconnect Top Pin No. 1 2 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 1 2 3 4 Signal +42 V dc Ground +42 V dc Heaton Xeroxing +24 V dc +24 V dc +24 V dc Ground Ground Ground Ground Ground Ground Ground Ground +5 V dc +5 V dc +5 V dc +5 V dc +24 V dc Ground +5 V dc Fused Ground 5-4 Service Manual
  • Lexmark T620 | Service Manual - Page 277
    pin to bottom pin of J9 0 V dc (Gnd) center pin to top pin of J10 +5 V dc center pin to bottom pin of J10 Note: A 902 service error may display if the jumpers are not correctly installed. Connector Locations 5-5
  • Lexmark T620 | Service Manual - Page 278
    is required between the center pin of J9 and pin 4 of J9. • A jumper is required between the center pin of J10 and pin 5 of J10. 5-6 Service Manual
  • Lexmark T620 | Service Manual - Page 279
    4069-5XX/7XX Envelope Option Board Connector J1 J2 J3 J4 Pin No. 1 2 3 4 5 6 7 1 2 3 1 2 3 1 2 3 4 Signal N/A Ground Tx (EOC) Ground Rx (EOC) +24 V dc Return +24 V dc Ground Paper Present +5 V dc Ground Paper Present +5 V dc Motor - Phase BMotor - Phase AMotor - Phase B+ Motor - Phase A+
  • Lexmark T620 | Service Manual - Page 280
    4069-5XX/7XX 5-8 Service Manual
  • Lexmark T620 | Service Manual - Page 281
    Board Note: Duplex connectors J10 and J11 are interchangeable. No problem results if the connectors are switched. Connector J1 Motor J2 DC Motor Sensor/Encoder Board J3 Stepper Motor J4 Fan J5 Paper Input Sensor J6 Rear Cover Open Switch J7 Jam Removal Tray Open Switch J8 Paper Exit Sensor Pin No
  • Lexmark T620 | Service Manual - Page 282
    4069-5XX/7XX Connector J9 Autoconnect, Option Below J10 Autoconnect, Option Below J11 Printer Autoconnect J12 Printer Autoconnect Pin No. 1 2 3 4 1 2 1 2 1 2 3 4 5 Signal Ground PrtxDout Ground PrtRxd +24 V dc Ground +24 V dc Ground N/A Ground PrtxDin Ground PrtRxD 5-10 Service Manual
  • Lexmark T620 | Service Manual - Page 283
    4069-5XX/7XX Autoconnect - Top Connector Top Autoconnect Pin No. 1 2 3 4 5 6 7 8 Signal 0 V dc +5 V dc 0 V dc 0 V dc 0 V dc +5 V dc 0 V dc +24 V dc Connector Locations 5-11
  • Lexmark T620 | Service Manual - Page 284
    Thru Sensor J4 DC Motor Pin No. 1 2 3 1 2 3 4 5 1 2 3 1 2 3 4 1 2 3 1 2 3 4 5 6 Signal +24 V dc Ground +5 V dc Prtxdin Ground prtrxd Ground N/C +24 V dc Ground +5 V dc prtxdout Ground prtrxd Ground Ground Paper Present RVsnsr mtrout1 mtrout2 Ground Ground tach + +5 V dc 5-12 Service Manual
  • Lexmark T620 | Service Manual - Page 285
    4069-5XX/7XX Connector J5 Bin Full/Near Full Dual Sensor J6 Jumper Connector Pin No. 1 2 3 4 5 1 2 3 Signal Ground Ground binful binful RVsnsr Not Used Not Used Not Used Connector Locations 5-13
  • Lexmark T620 | Service Manual - Page 286
    Thru Sensor J4 DC Motor Pin No. 1 2 3 1 2 3 4 5 1 2 3 1 2 3 4 1 2 3 1 2 3 4 5 6 Signal +24 V dc Ground +5 V dc Prtxdin Ground prtrxd Ground N/C +24 V dc Ground +5 V dc prtxdout Ground prtrxd Ground Ground Paper Present RVsnsr mtrout1 mtrout2 Ground Ground tach + +5 V dc 5-14 Service Manual
  • Lexmark T620 | Service Manual - Page 287
    4069-5XX/7XX Connector J5 Bin Full/Near Full Dual Sensor J6 Jumper Connector Pin No. 1 2 3 4 5 1 2 3 Signal Ground Ground binful binful RVsnsr Upper Unit Upper/Lower Unit Lower Unit J6 Connector Jumper Locations High-Capacity Stacker Board Upper Unit Board Lower Unit Board Pin 1 Pin 2 X X
  • Lexmark T620 | Service Manual - Page 288
    4069-5XX/7XX System Board Connector Locations 30 PPM Network 5-16 Service Manual
  • Lexmark T620 | Service Manual - Page 289
    4069-5XX/7XX 30 PPM Non-Network Connector Locations 5-17
  • Lexmark T620 | Service Manual - Page 290
    4069-5XX/7XX 40 PPM Network 5-18 Service Manual
  • Lexmark T620 | Service Manual - Page 291
    4069-5XX/7XX 40 PPM Non-Network Connector Locations 5-19
  • Lexmark T620 | Service Manual - Page 292
    Cartridge Fan (722/72n) Pin No. Signal 1 LENA* 2 LPOW FB 3 LADJ* 4 Ground 5 LPOW 6 +5phead 7 Ground 8 VID_CON 9 Ground 10 Ground 1 Cover Closed 2 +5 V dc 3 Ground 1 +24 V dc 2 Ground 1 FanStall 2 Ground 3 MainFan 1 Cartridge Fan 2 Ground 5-20 Service Manual
  • Lexmark T620 | Service Manual - Page 293
    4069-5XX/7XX Connector J7 Mirror Motor J8 Output Level Sensor J9 SDRAM Card Assembly J11 USB Connector J12 SDRAM Card Assembly J13 HYSNC Pin No. Signal 1 Ground 2 Ground 3 Refreq 4 Lock* 5 Start* 6 Ground 7 +24 V dc 1 Ground 2 Ground 3 OPT2 4 Ground 5 +5 V dc 1 Ground 2
  • Lexmark T620 | Service Manual - Page 294
    9 10 J15 Serial Port 2 3 4 5 6 20 8-19 21-25 J16 Operator Panel 1 2 3 4 5 6 ExitSens*R ThumpRet +5 V dc ThumpLeft Ground Therm Ground Narmedia* +5 V dc Ground TXD RXD RTS CTS DSR DTR No Connection No Connection l2CDATA +5 V dc l2CCLK Ground FPIRQ No Connection 5-22 Service Manual
  • Lexmark T620 | Service Manual - Page 295
    4069-5XX/7XX Connector J20 Smart Cartridge J21 Parallel Port Connector Pin No. Signal 1 SCart 2 Ground 3 Ground 24 V dc HVPS 6 CHGPWM HVPS 7 Ground HVPS 8 DEV HVPS 9 Ground Input Sensor 10 InSense* Input Sensor 11 +5 V dc Cart Sensor 12 +5 V dc Cart Sensor 13 CTSensen
  • Lexmark T620 | Service Manual - Page 296
    /7XX Connector J27 Main Drive Motor J28 Ethernet Connector J30 Option Connector Pin No. Signal 1 +24 V dc 2 Ground 3 Ground 4 Lock 5 Hall 6 BLDC_DIR 7 FG 8 +5 V dc 9 BLDC_CLKb 10 Ground 11 ON/OFF 1 RDXIn 2 Ground 3 TDXIbr 4 Ground 5 Ground 5-24 Service Manual
  • Lexmark T620 | Service Manual - Page 297
    4069-5XX/7XX Connector J31 Options Connector J32 MPF Paper Out J33 System Board Edge Connector J35 Auto Compensator Motor Pin No. Signal 1 RDXIn 2 Ground 3 TDXIbr 4 Ground 5 Ground 1 Ground 2 POSense 3 +5 V dc 1 +24 V dc 2 Autocomp* 3 Ground 4
  • Lexmark T620 | Service Manual - Page 298
    4069-5XX/7XX Connector J36 Paper Size Sensor J37 MPF PICK Pin No. Signal 1 +5 V dc 2 PSize2 3 Ground 4 PSize1 5 +24 V dc 6 Ground 7 POut 8 PaperLow* 9 +5 V dc 1 MPFPick* 2 +24 V dc 5-26 Service Manual
  • Lexmark T620 | Service Manual - Page 299
    4069-5XX/7XX StapleSmart Finisher Option - Staple Card Assembly Connector Pin No. J1A Bottom Autoconnect 1 2 3 Signal +24 V dc Ground +5 V in Connector Locations 5-27
  • Lexmark T620 | Service Manual - Page 300
    J1B Bottom Autoconnect 1 2 3 4 5 J2 Feed Motor 1 2 3 4 5 6 J3 Stepper Motor 1 2 3 4 5 6 7 8 9 10 Signal rtxdin Ground prtrxd Ground Ground fdmtr1 fdmtr2 Ground Ground tachft 5Vptt stpmtrstpmtrstpmtr+ stpmtr+ crtprsntstplow+ 'stpphomoGround 5Vstpl stprimed- 5-28 Service Manual
  • Lexmark T620 | Service Manual - Page 301
    4069-5XX/7XX Connector Pin No. J4 Accessory Connector 1 2 3 4 5 6 J5 Solenoid 1 2 J6 Stapler 1 2 3 J7 Right Side Sensor 1 Board 2 3 4 J8 Solenoid 1 2 J9 Bin Empty Sensor 1 2 3 J10 Left Side Sensor 1 Board 2 3 4 Signal +24 V dc accmtrGround Ground tacha+ 5Vptt Sol1+
  • Lexmark T620 | Service Manual - Page 302
    1 2 3 4 5 J15 Stapler Door Open 1 2 3 Signal Ground psthruint 5Vptt +5V dc Ground cvropin+24V dc Ground 5V in prtxdout Ground prtrxd Ground Ground DooropinGround 5Vswitch 5-30 Service Manual
  • Lexmark T620 | Service Manual - Page 303
    4069-5XX/7XX Cables - Base Machine Fuser Cable, DC Internal Autoconnect Cable, (Fuser to LVPS) Deflector Cable Connector Locations 5-31
  • Lexmark T620 | Service Manual - Page 304
    4069-5XX/7XX Fuser Cable, AC EP Autoconnect to Fuser Top Cover Integrated Tray Cable HSYNC Cable 5-32 Service Manual
  • Lexmark T620 | Service Manual - Page 305
    4069-5XX/7XX Mirror Motor Cable Main Drive Motor Cable Laser Cable Connector Locations 5-33
  • Lexmark T620 | Service Manual - Page 306
    4069-5XX/7XX Front Harness Cable Fuser Cable, DC EP Autoconnect to System Board Autoconnect Cable - System Board to Top/Interconnect Board 5-34 Service Manual
  • Lexmark T620 | Service Manual - Page 307
    4069-5XX/7XX Autoconnect Cable - System Board to Front/Bottom/Interconnect Board Connector Locations 5-35
  • Lexmark T620 | Service Manual - Page 308
    4069-5XX/7XX 5-36 Service Manual
  • Lexmark T620 | Service Manual - Page 309
    4069-5XX/7XX 6. Preventive Maintenance This chapter describes procedures for printer preventive maintenance. Following these recommendations can help prevent problems and maintain optimum performance. Safety Inspection Guide The purpose of this inspection guide is to aid you in identifying unsafe
  • Lexmark T620 | Service Manual - Page 310
    panel displays the message "80 Scheduled Maintenance" at each 300K page count interval. It is necessary to replace the fuser assembly, transfer roller and charge roll at this interval to maintain the print quality and reliability of the printer. The parts are available as a maintenance kit with the
  • Lexmark T620 | Service Manual - Page 311
    to one or the other of the assemblies are listed separately and identified by description. the same for all machines. • CC: (Color Code) in the Description column indicates the part is identified Lexmark T620 Lexmark T620n Lexmark T622 Lexmark T622n Type 4069-520 4069-52n (Network) 4069-722 4069-72n
  • Lexmark T620 | Service Manual - Page 312
    4069-5XX/7XX Assembly 1: Covers 7-2 Service Manual
  • Lexmark T620 | Service Manual - Page 313
    99A2415 99A2416 Units Description 1 Cover Assembly, Redrive Cap 1 Cover, Fuser Wick Assembly 1 Cover Asm, Laser 500 Output 1 Contact Asm, Smart Cartridge 1 Cover, RIght Side 520/52n 1 Cover, Right Side 722/72n 1 Hinge Assembly, Upper Front Cover 1 Kit, Upper Front Cover with Labels
  • Lexmark T620 | Service Manual - Page 314
    4069-5XX/7XX Assembly 1: Covers (continued) 7-4 Service Manual
  • Lexmark T620 | Service Manual - Page 315
    Description 1 Label, TLI/ID/Serial No. - Blank 1 Cover Assembly, Lower Front 1 Latch, Upper Cover 1 Spring, Latch 1 Operator Panel Assembly 1 Switch, Cover Open w/Operator Panel Cable Assembly 1 Cover, Left Door 1 Support, Paper 1 Cable Tie 1 Retainer, Cable Parts Catalog 7-5
  • Lexmark T620 | Service Manual - Page 316
    4069-5XX/7XX Assembly 2: Frame 7-6 Service Manual
  • Lexmark T620 | Service Manual - Page 317
    , Output Paper Level 1 Bracket, Level Sensor 1 Duct, 500 Left Stacker 1 Duct, Main Body 1 Guide, Extension 500 Input 1 Support, Left Lower Stacker 1 Pan, Drip ITC 2 Spring, Cartridge Hold Down 1 Extension, 500 Input 4 Pad, Machine Mounting 1 Transfer Plate Assembly 1 Support
  • Lexmark T620 | Service Manual - Page 318
    4069-5XX/7XX Assembly 2: Frame (continued) 7-8 Service Manual
  • Lexmark T620 | Service Manual - Page 319
    26 2-27 Part Number 99A0466 99A0039 99A0026 99A1522 99A1525 99A1888 2-28 2-29 2-30 2-31 2-32 2-33 2-34 2-35 2-36 2-37 2-38 NS NS NS NS NS NS NS NS Sensor, Toner Cartridge Level 2 Roller, Developer Support 1 Tray Bias Arm Assembly 1 Pan, Center Assembly 1 Deflector, Upper PF 1 Kit, Inner
  • Lexmark T620 | Service Manual - Page 320
    4069-5XX/7XX Assembly 3: Printhead 7-10 Service Manual
  • Lexmark T620 | Service Manual - Page 321
    4069-5XX/7XX AsmIndex 3-1 3-1 NS NS Part Number 99A2448 99A2449 99A2442 Units Description 1 Printhead Assembly 520/52n 1 Printhead Assembly 722/72n 3 Screw, Printhead Mounting PP 99A0263 1 Fan, Printhead Cooling 722/72n Parts Catalog 7-11
  • Lexmark T620 | Service Manual - Page 322
    4069-5XX/7XX Assembly 4: Paper Feed (Auto compensator) 7-12 Service Manual
  • Lexmark T620 | Service Manual - Page 323
    7XX AsmIndex 4-1 4-2 4-3 4-4 4-5 NS Part Number 99A0060 99A2444 99A0070 99A1616 99A1930 Units Description 1 Sensor, Paper Out Internal Tray 1 Pick Arm Assembly (500) 2 Pick Rolls 1 Flag, Paper Out 500 Tray 1 Spring, Bellcrank Internal 500 1 Screw, Hanger PP 99A0263 Parts Catalog 7-13
  • Lexmark T620 | Service Manual - Page 324
    4069-5XX/7XX Assembly 5: Paper Feed - Multipurpose Unit 7-14 Service Manual
  • Lexmark T620 | Service Manual - Page 325
    Assembly 1 Spring Assembly, Separator 1 MPT Pad Assembly Kit o Restraint Pad o MPT Pad Assembly 1 Deflector Assembly, MPT 1 Deflector, Lower 2 Screw, Lower Deflector Mounting 8 mm PP 99A0263 2 Screw, Lower Deflector Mounting 12 mm PP 99A0263 1 Flag, MPT Paper Out 1 Plate Assembly
  • Lexmark T620 | Service Manual - Page 326
    4069-5XX/7XX Assembly 6: Paper Feed - Alignment 7-16 Service Manual
  • Lexmark T620 | Service Manual - Page 327
    99A0566 99A0559 Units Description 1 Alignment Assembly Paper Feed 1 Screw, Reference Ground Clip 1 Clip, Reference Ground 1 Screw, Paper Reference Adjustment 1 Washer, Reference Adjustment 1 Nut, Paper Reference Adjustment 1 Lever, Bellcrank Release 2 Screw, Alignment Asm Mtg
  • Lexmark T620 | Service Manual - Page 328
    4069-5XX/7XX Assembly 7: Paper Feed - Output 7-18 Service Manual
  • Lexmark T620 | Service Manual - Page 329
    4069-5XX/7XX AsmIndex 7-1 7-2 NS NS NS Part Number 99A1533 99A1534 99A0104 99A1857 Units Description 1 Redrive Assembly, Inner 500 1 Door Assembly, Redrive 500 1 Spring, Upper Diverter 1 Deflector, Upper Redrive 2 Screw, SEMS-Duplex Path PP 99A0263 Parts Catalog 7-19
  • Lexmark T620 | Service Manual - Page 330
    4069-5XX/7XX Assembly 8: Integrated Paper Tray - 500 Sheet 7-20 Service Manual
  • Lexmark T620 | Service Manual - Page 331
    Units Description 1 Latch, Back Restraint 1 Tray Assembly 500 Sheet 1 Restraint, Side/Latch Side 4 Strip, Wear 1 Label, Tray Option Number 1 Plate, 500 Tray Wear 3 Finger, Autosize 1 Plate, Snap-in 1 Label, Paper Size 1 Knob, Paper Size 1 Slider, Autosize 500 2 Pad, Restraint
  • Lexmark T620 | Service Manual - Page 332
    4069-5XX/7XX Assembly 9: Main Drive 7-22 Service Manual
  • Lexmark T620 | Service Manual - Page 333
    4069-5XX/7XX AsmIndex 9-1 9-1 9-2 9-3 9-4 NS NS Part Number 99A2446 99A2447 99A1569 99A0275 99A0954 Units Description 1 Gearbox, w/Motor 520/52n 1 Gearbox, w/Motor 722/72n 1 Shaft, Power Take Off 500 1 Spring, Power Take Off Shaft 1 Gear, Bevel with Grease Packet 4 Screw, Gearbox
  • Lexmark T620 | Service Manual - Page 334
    4069-5XX/7XX Assembly 10: Developer Drive 7-24 Service Manual
  • Lexmark T620 | Service Manual - Page 335
    4069-5XX/7XX AsmIndex 10-1 10-2 10-3 10-4 10-5 Part Number 99A1544 99A0136 99A0564 Units Description 1 Developer Drive Assembly 1 Shaft, Developer Drive 1 Coupler, Gear #55 1 Screw, Developer Drive Ground PP 99A0263 2 Screw, Developer Drive Mtg PP 99A0263 Parts Catalog 7-25
  • Lexmark T620 | Service Manual - Page 336
    4069-5XX/7XX Assembly 11: Hot Roll Fuser 7-26 Service Manual
  • Lexmark T620 | Service Manual - Page 337
    Wiper Assembly, Wet 1 Cover, Fuser Assembly with Thermistor, Thermal Fuse, and LH & RH Fuser Lamp Contact Assemblies 4 Screw, Contact Assembly PP 99A0263 1 Exit Roll Assembly 1 Gear, Upper Redrive 1 Detack Assembly 1 Hot Roll 2 Bearing, BUR 1 Solenoid Assembly, Envelope Conditioner
  • Lexmark T620 | Service Manual - Page 338
    4069-5XX/7XX Assembly 11: Hot Roll Fuser (continued) 7-28 Service Manual
  • Lexmark T620 | Service Manual - Page 339
    11-26 11-27 11-28 11-29 11-30 11-31 11-32 11-33 11-34 11-35 11-36 11-36 NS NS NS Fuser Cover Assembly PP 99A0263 2 Retainer, Hot Roll Bearing 2 Bearing, Hot Roll 2 Bushing, Hot Roll 1 Fuser Cable, AC Ground 2 Bellcrank, Backup Roll 520/52n 2 Bellcrank, Backup Roll 722/72n 1 Guide, Fuser
  • Lexmark T620 | Service Manual - Page 340
    4069-5XX/7XX Assembly 12: Transfer 7-30 Service Manual
  • Lexmark T620 | Service Manual - Page 341
    -2 12-3 12-4 12-5 12-6 NS Part Number 99A1015 99A0349 99A0184 99A0185 99A0181 99A1578 Units Description 1 Transfer Roll Assembly 1 Arm, Transfer Roll Assembly Right 1 Spring, Transfer Roll Right 1 Shaft, Transfer Pivot 1 Spring, Transfer Roll Left 1 Arm, Transfer Roll Left 1 Retainer
  • Lexmark T620 | Service Manual - Page 342
    4069-5XX/7XX Assembly 13: Charging 7-32 Service Manual
  • Lexmark T620 | Service Manual - Page 343
    4069-5XX/7XX AsmIndex 13-1 13-2 13-3 13-4 NS Part Number 99A0512 99A0513 99A1017 99A1555 Units Description 1 Link Assembly, Charge Left Kit 1 Link Assembly, Charge Right Kit 1 Roll Assembly, Charge 1 Bushing, Charge Roll 1 Screw, Charge Roll PP 99A0263 Parts Catalog 7-33
  • Lexmark T620 | Service Manual - Page 344
    4069-5XX/7XX Assembly 14: Electronics 7-34 Service Manual
  • Lexmark T620 | Service Manual - Page 345
    4069-5XX/7XX AsmIndex 14-1 Part Number 1342514 14-1 43H5248 14-1 1339538 14-1 14-1 1342536 1339537 14-1 14-1 1339539 1339540 14-1 1339541 14-1 1339546 14-1 14-1 14-1 14-1 14-1 1342534 1339543 1339542 1374067 1339544 14-1 1339545 14-1 14-1 1342530 43H5546 Units Description 1 Power
  • Lexmark T620 | Service Manual - Page 346
    4069-5XX/7XX Assembly 14: Electronics (continued) 7-36 Service Manual
  • Lexmark T620 | Service Manual - Page 347
    1 LVPS, 220 V ac 520/52n 1 LVPS, 220 V ac 722/72n 1 Screw, HVPS Mounting PP 99A0263 1 High Voltage Power Supply 1 Interconnect Board Assembly o 2 Slot with shield 2 Screw, Int Board Mounting PP 99A0263 3 Screw, System Bd Mounting Front PP 99A0263 2 Screw, Parallel Connector Mounting
  • Lexmark T620 | Service Manual - Page 348
    4069-5XX/7XX Assembly 14: Electronics (continued) 7-38 Service Manual
  • Lexmark T620 | Service Manual - Page 349
    NS Part Number 56P0053 56P0054 56P0055 56P0056 99A1612 99A0346 99A0227 Units Description 1 System Board Assembly 520 1 System Board Assembly 52n 1 System Board Assembly 722 1 System Board Assembly 72n 1 Cable, Deflector 1 Clip, EMC Six Finger 1 Clip, EMC Gnd Two Finger Parts Catalog
  • Lexmark T620 | Service Manual - Page 350
    4069-5XX/7XX Assembly 14: Electronics (continued) 7-40 Service Manual
  • Lexmark T620 | Service Manual - Page 351
    Mounting PP 99A0263 4 Screw, INA Cover Mounting PP 99A0263 2 Screw, INA Cover Mounting PP 99A0263 1 o Cover, INA Blank 1 Shield, Inner Assembly, 2 slot 2 o Cover, INA Blank 1 Shield, Outer 2 slot 4 Screw, Outer Shield Mounting PP 99A0263 6 Screw, Outer Shield Mounting PP 99A0263
  • Lexmark T620 | Service Manual - Page 352
    4069-5XX/7XX Assembly 14: Electronics (continued) 7-42 Service Manual
  • Lexmark T620 | Service Manual - Page 353
    4069-5XX/7XX AsmIndex 14-22 14-23 14-24 14-25 14-25 14-26 14-27 14-28 14-29 Part Number 99A2443 99A2441 99A2459 99A2446 99A2447 99A2456 99A0128 99A2463 99A2460 Units Description 1 Sensor, Standard Bin Level 1 Fan, Main 1 Cable, Main Drive Motor 1 Gearbox, w/Motor 520/52n 1 Gearbox, w/
  • Lexmark T620 | Service Manual - Page 354
    4069-5XX/7XX Assembly 14: Electronics (continued) 7-44 Service Manual
  • Lexmark T620 | Service Manual - Page 355
    99A2438 99A2457 Units Description 1 Fan, Cartridge 722/72n 1 Smart Cartridge Contact Assembly 1 Sensor, Toner Cartridge Level 1 Operator Panel Assembly 1 Switch, Cover Open w/Operator Panel Cable Assembly 1 Sensor, Input 1 Sensor, MPT Paper Out 1 MPT Solenoid 1 Cable, Front
  • Lexmark T620 | Service Manual - Page 356
    4069-5XX/7XX Assembly 14: Electronics (continued) 7-46 Service Manual
  • Lexmark T620 | Service Manual - Page 357
    1 Cable, Hysnc 1 Cable, Laser 1 Cable, Fuser DC EP Auto Connect to System Board 1 Solenoid Assembly, Envelope Conditioner 1 Sensor, Exit 1 Cable, Fuser DC, Fuser Internal 1 Cover, Fuser Assembly with Thermistor, Thermal Fuse and RH Fuser Lamp Contact Assembly 1 Sensor, Narrow Media
  • Lexmark T620 | Service Manual - Page 358
    4069-5XX/7XX Assembly 14: Electronics (continued) 7-48 Service Manual
  • Lexmark T620 | Service Manual - Page 359
    4069-5XX/7XX AsmIndex 14-52 Part Number 99A2442 Units Description 1 Printhead Fan Parts Catalog 7-49
  • Lexmark T620 | Service Manual - Page 360
    4069-5XX/7XX Assembly 15: 250-Sheet Tray 7-50 Service Manual
  • Lexmark T620 | Service Manual - Page 361
    15-1 15-2 15-3 15-4 15-5 15-6 15-7 15-8 15-9 15-10 15-11 15-12 15-13 15-14 15-15 15-16 15-17 Stud Assembly, 250 Frame 1 Arm, Paper Out 250 3 Screw, Auto Comp Mounting PP 99A0263 1 Pick Arm Assembly 1 Wear Plate, Pass Thru 250 Tray 2 Screw, Wear Plate Mounting PP 99A0263 1 Roll Assembly,
  • Lexmark T620 | Service Manual - Page 362
    4069-5XX/7XX Assembly 15: 250-Sheet Tray (continued) 7-52 Service Manual
  • Lexmark T620 | Service Manual - Page 363
    28 15-29 15-30 15-31 15-32 15-33 NS NS NS Part Number 250 Drive 1 Spring, Power Takeoff 1 Bushing, Drive Shaft Low 1 Gear, Feed Roll 1 Gear, Bevel 1 Bearing, Drive Shaft 1 Cable, 250 Auto Connect Option 2 Bushing, Drive Roll 1 Bellcrank, Roller Release 1 Spring, Bellcrank 250
  • Lexmark T620 | Service Manual - Page 364
    4069-5XX/7XX Assembly 15: 250-Sheet Tray (continued) 7-54 Service Manual
  • Lexmark T620 | Service Manual - Page 365
    99A0893 99A0127 99A0286 Units Description 1 Latch, Back Restraint 2 Restraint Pad 1 Tray Assembly, 250-Sheet Option 1 Restraint, Side 250-Sheet Tray 4 Wear Strips 1 Label, Paper Size 1 Label, Tray Option Number 1 Clip, 250 Tray Wear 4 Finger, Autosize 1 Plate, Snap-In 1 Knob
  • Lexmark T620 | Service Manual - Page 366
    4069-5XX/7XX Assembly 16: 500-Sheet Tray 7-56 Service Manual
  • Lexmark T620 | Service Manual - Page 367
    16-2 16-3 16-4 16-5 16-6 16-7 16-8 16-9 16-10 16-11 16-12 16-13 16-14 16-15 16-16 16-17 Wear 4 Finger, Autosize 1 Plate, Snap-In 1 Label, Paper Size 1 Slider, Autosize 500 2 Restraint Pad 1 Tray Assembly, 500 Sheet 1 Knob, Paper Size 1 Restraint, Back 500-Sheet Tray 1 Latch, Back
  • Lexmark T620 | Service Manual - Page 368
    4069-5XX/7XX Assembly 16: 500-Sheet Tray (continued) 7-58 Service Manual
  • Lexmark T620 | Service Manual - Page 369
    16-26 16-27 16-28 16-29 16-30 16-31 16-32 16-33 16-34 16-35 16-36 16-37 16-38 16- 1 Retainer, Aligner Assembly PP 99A0267 1 Bearing, Drive Shaft Low 1 Aligner Assembly, Paper 1 Gear, Feed Roll 1 Spring, Switch Activate 1 Spring, Backup Roller 1 Bellcrank, Roller Release 1 Gear
  • Lexmark T620 | Service Manual - Page 370
    4069-5XX/7XX Assembly 17: Duplex 7-60 Service Manual
  • Lexmark T620 | Service Manual - Page 371
    Spring, Aligner 3 Guide Assembly, Paper 1 Guide Assembly, Paper 2 Spring, Chassis Ground 2 Screw, Motor Mount 3 mm PP 99A0413 1 Belt, Motor 114 Gear 1 Pulley, Main Drive 96/54 Gear 1 Motor Assembly, DC Drive 1 Cable, D.C. Motor Tach 250 Duplex 1 Cam Follower Assembly Kit PP 99A0299
  • Lexmark T620 | Service Manual - Page 372
    4069-5XX/7XX Assembly 17: Duplex (continued) 7-62 Service Manual
  • Lexmark T620 | Service Manual - Page 373
    -25 17-26 17-27 17-28 17-29 17-30 17-31 17-32 17-33 99A1677 99A0316 99A0315 99A0325 99A0280 99A0311 99A0274 99A0310 17-34 17-35 Guide, LH Lower Return 500 Duplex 1 Guide, Return LH Upper 250 Duplex 1 Sensor, Exit - Optical 2 Screw, LH Upper Return Guide Mounting PP 99A0413 1 Base Assembly
  • Lexmark T620 | Service Manual - Page 374
    4069-5XX/7XX Assembly 17: Duplex (continued) 7-64 Service Manual
  • Lexmark T620 | Service Manual - Page 375
    99A1059 99A0058 99A1164 Units Description 1 Top Cover Assembly, Movable 500 Duplex 1 Top Cover Assembly, Fixed 500 Duplex 1 Retainer, 6 mm Top Cover PP 99A0404 1 Guide, Lower Entry 500 Duplex 1 Guide Assembly, Paper Decurl 1 Guide, Center Drive Upper 1 Air Plenum 2 Spring, Decurl
  • Lexmark T620 | Service Manual - Page 376
    4069-5XX/7XX Assembly 18: Output Expander 7-66 Service Manual
  • Lexmark T620 | Service Manual - Page 377
    99A0104 99A0369 18-4 99A0052 18-5 18-6 18-7 18-8 18-9 18-10 18-11 18-12 18-13 18-14 99A0915 99A0571 99A1817 99A1666 99A1689 Assembly, Mechanical Linkage 1 Cover, Left Side 2 Spring, Swing Arm 1 Latch, Output Tray 2 Shaft Bearing PP 99A0572 1 Level Sensor Bracket 1 Flag, Output Paper
  • Lexmark T620 | Service Manual - Page 378
    4069-5XX/7XX Assembly 18: Output Expander (continued) 7-68 Service Manual
  • Lexmark T620 | Service Manual - Page 379
    18-25 18-26 18-27 18-28 18-29 18-30 99A0363 99A0371 99A0361 99A0362 99A0364 99A0351 99A0913 18-31 99A0912 Units Description 1 Door Assembly, Rear Access 1 Shaft Assembly, Lower Also order PP 99A0572 3 Pulley, Drive 1 Cover, Right Side 1 Belt, 160 Gear 1 Arm
  • Lexmark T620 | Service Manual - Page 380
    4069-5XX/7XX Assembly 19: Envelope Feeder 7-70 Service Manual
  • Lexmark T620 | Service Manual - Page 381
    99A1700 99A0484 99A0491 99A0400 99A0489 99A0487 Units Description 1 Paper Weight Assembly 1 Guide, Edge 1 Cover, Top 1 Sensor, Envelope Pass Thru 1 Clutch, Restraint/Gear 1 Cover, Right Side 1 Support, Slide Out 7 Roller, Support 1 Motor, Stepper D.C. 1 Label, Options 1 Switch
  • Lexmark T620 | Service Manual - Page 382
    4069-5XX/7XX Assembly 19: Envelope Feeder (continued) 7-72 Service Manual
  • Lexmark T620 | Service Manual - Page 383
    Units Description 1 Gear Kit, PP 99A0271 1 o Gear, Feed 1 o Gear, Master Cam 1 o Gear, Drive Roll Shaft 3 o Gear, Master/Feed Kick 2 o Gear, Auto Connect Front 1 Spring, Cam Clutch 1 Label, Envelope Orientation Icon 1 Deflector Guide 1 Guard, Pass Thru Sensor Parts Catalog 7-73
  • Lexmark T620 | Service Manual - Page 384
    4069-5XX/7XX Assembly 20: High-Capacity Feeder 7-74 Service Manual
  • Lexmark T620 | Service Manual - Page 385
    Units Description 1 Frame, Printer Support Frame 2 3 Screw, Printer Support 2 Frame Mounting PP 99A0675 2 Clamp, Feed Frame 4 Screws, Feed Frame Clamp PP 99A0675 2 Bearing, Nyliner Leadscrew Top 1 Cover, Side 3 Strip, Wear 1 Strip, Wear Dimple 1 Deflector Assembly Front 3 Screw
  • Lexmark T620 | Service Manual - Page 386
    4069-5XX/7XX Assembly 20: High-Capacity Feeder (continued) 7-76 Service Manual
  • Lexmark T620 | Service Manual - Page 387
    PP 99A0677 2 Hinge, Door 1 Door Assembly, Front 2 Magnet, Door 1 Frame Assembly 1 Tray Assembly, Elevator 1 Card Assembly, 2000 Option Control 4 Washer, Card Assembly Mounting PP 99A0677 4 Screw, Card Assembly Mounting PP 99A0675 1 Kit, Door Switch Spring and Bumper 1 Washer
  • Lexmark T620 | Service Manual - Page 388
    4069-5XX/7XX Assembly 20: High-Capacity Feeder (continued) 7-78 Service Manual
  • Lexmark T620 | Service Manual - Page 389
    Number 99A0188 99A0219 99A0719 99A0663 99A0664 99A1807 99A0653 99A1808 99A0714 Units Description 3 Guide, Rear Paper with retainer arm Use with 99A0219 6 Screw, Top Frame Mounting PP 99A0675 1 Frame Assembly, Top with labels 2 Screw, Top Frame Clamp Mounting PP 99A0675 2 Washer, Top
  • Lexmark T620 | Service Manual - Page 390
    4069-5XX/7XX Assembly 20: High-Capacity Feeder (continued) 7-80 Service Manual
  • Lexmark T620 | Service Manual - Page 391
    Kit, Paper Size Switch Assembly including cable, switch, lock washer, nut and knob 2 Washer, Sensor Bracket Mounting PP 99A0677 2 Screw, Sensor Bracket Mounting PP 99A0675 1 Cable, HCIT-14Pin Flex 6 Washer, Printer Support Frame 1 Star PP 99A0677 6 Nut, Printer Support Frame 1 8-32
  • Lexmark T620 | Service Manual - Page 392
    4069-5XX/7XX Assembly 20: High-Capacity Feeder (continued) 7-82 Service Manual
  • Lexmark T620 | Service Manual - Page 393
    AsmIndex 20-60 Part Number 20-61 20-62 20-63 20-64 20-65 20-66 20-67 20-68 20-69 20-70 Screw w/washer, Motor Mounting PP 99A1793 3 Nut w/lockwasher, Drive Pulley Plate PP 99A1794 1 Motor Assembly, DC 4 Foot, Stabilizer PP 99A0672 4 Mounting Feet PP 99A0687 1 Belt, DC Motor Drive
  • Lexmark T620 | Service Manual - Page 394
    4069-5XX/7XX Assembly 20: High-Capacity Feeder (continued) 7-84 Service Manual
  • Lexmark T620 | Service Manual - Page 395
    AsmIndex 20-76 20-77 20-78 20-79 20-80 20-81 20-82 20-83 20-84 20- Assembly, 250 Frame 1 Bearing, Drive Shaft Low 1 Spring, Power Takeoff 1 Shaft, 250 Drive 1 Aligner Assembly, Paper 1 Retainer, Aligner Assembly PP 99A0267 1 Gear, Feed Roll 1 Bellcrank, Roller Release 1 Card Assembly
  • Lexmark T620 | Service Manual - Page 396
    4069-5XX/7XX Assembly 20: High-Capacity Feeder (continued) 7-86 Service Manual
  • Lexmark T620 | Service Manual - Page 397
    Description 3 Screw, Auto Comp Assembly Mounting PP 99A0263 1 Arm Assembly, Pick 2000 2 Roll Assembly, Pick 1 Base, 2000 Option Bracket 250 Frame Retention Mounting PP 99A0677 4 Screw, Bracket 250 Frame Retention Mounting PP 99A0263 2 Bracket, 250 Frame Retention 1 Cable, Paper Low
  • Lexmark T620 | Service Manual - Page 398
    4069-5XX/7XX Assembly 21: Kiosk - Vertical Paper Adapter 7-88 Service Manual
  • Lexmark T620 | Service Manual - Page 399
    , Pulley PP 99A0208 6 Spring, Backup Roller 6 Roller, Backup 1 Tray Assembly, Drive Roller 1 Frame Assembly, Right Side 1 Cover, Right 2 Belt, 185G 1 Guide, Paper Exit 2 Shaft Assembly, Drive Roller 1 Frame Assembly, Left Side 1 Cover, Backup Tray 1 Tray, Backup Roller Parts
  • Lexmark T620 | Service Manual - Page 400
    4069-5XX/7XX Assembly 22: Kiosk - Horizontal Paper Adapter 7-90 Service Manual
  • Lexmark T620 | Service Manual - Page 401
    22-8 22-9 22-10 22-11 22-12 22-13 22-14 22-15 22-16 22-17 22-18 22-19 22-20 Part Number 99A0231 99A1646 99A1819 99A1705 99A1704 99A0197 99A0079 99A0087 99A0086 99A1707 99A0907 99A0232 99A1820 99A0122 99A0906 99A0088 99A0085 Units Description 1 Bail, Support 1 Arm Assembly, Pivot 1 Mounting
  • Lexmark T620 | Service Manual - Page 402
    4069-5XX/7XX Assembly 23: High-Capacity Output Stacker 7-92 Service Manual
  • Lexmark T620 | Service Manual - Page 403
    99A1783 99A1778 23-5 23-6 23-7 99A1782 99A1790 99A1779 23-8 23-9 23-10 99A1746 99A1747 99A1701 23-11 23-12 23-13 99A1781 99A1666 99A1745 23- Rear Door 1 Frame, Right 2 Pulley, Output Tray 2 Shaft, Pulley 2 Guide, Output Tray 2 Spring, Output Tray 1 Cover, Right 1 Cover, Front 1
  • Lexmark T620 | Service Manual - Page 404
    4069-5XX/7XX Assembly 23: High-Capacity Output Stacker (cont'd) 7-94 Service Manual
  • Lexmark T620 | Service Manual - Page 405
    4069-5XX/7XX AsmIndex 23-14 23-15 23-16 23-17 23-18 23-19 23-20 23-21 23-22 23-23 23-24 23-25 23-26 23-27 23-28 23-NS Part Number 99A0107 99A0104 99A0369 99A0052 99A1749 99A1688 99A1689 99A1784 99A0415 99A0914 99A0409 99A1613 99A0414 99A1690 Units Description 2 Deflector, Upper Also order
  • Lexmark T620 | Service Manual - Page 406
    4069-5XX/7XX Assembly 23: High-Capacity Output Stacker (cont'd) 7-96 Service Manual
  • Lexmark T620 | Service Manual - Page 407
    -5XX/7XX AsmIndex 23-29 23-30 23-31 23-32 23-33 23-34 23-35 23-35 23-36 , 160G Upper Stacker Asm 1 Arm Asm, Belt Idler 2 Spring, Belt Tensioner 1 Stacker Asm, Paper Path Lower 1 Stacker, Asm Paper Path Upper 2 Sensor, Stacker Pass thru 1 Switch Asm 1 Packet Grease, IBM #23 1 Jumper
  • Lexmark T620 | Service Manual - Page 408
    4069-5XX/7XX Assembly 24: 5-Bin Mailbox 7-98 Service Manual
  • Lexmark T620 | Service Manual - Page 409
    24-2 24-3 24-4 24-5 24-6 24-7 24-8 24-9 24-10 24-11 24-12 24-13 24-14 24-15 24-16 24 Label, Options 1 Bail, order 99A1743, 5-Bin Mailbox Asm Kit 5 Support, Paper Tray 5 Stop Asm, Paper Tray 5 Flag, Bin Full 5 Sensor, Dual Paper Height 5 Cable, Dual Sensor 1 Cable Asm, Lower Auto
  • Lexmark T620 | Service Manual - Page 410
    4069-5XX/7XX Assembly 24: 5-Bin Mailbox (continued) 7-100 Service Manual
  • Lexmark T620 | Service Manual - Page 411
    4069-5XX/7XX AsmIndex 24-30 24-31 24-32 24-33 24-34 24-35 24-36 24-37 24-38 Actuator 4 C-clip 1 Bracket, Attach 4 Solenoid, Diverter 5 Deflector, Paper Exit w/Brush 4 Deflector, Paper 4 Deflector 1 Deflector, Paper Top Bin 1 Spring, Static Ground 1 Grease Packet, IBM #23 1
  • Lexmark T620 | Service Manual - Page 412
    4069-5XX/7XX Assembly 25: StapleSmart Finisher 7-102 Service Manual
  • Lexmark T620 | Service Manual - Page 413
    99A2506 99A2512 99A1785 99A2501 99A2503 99A2502 25-10 25-11 25-11 25-11A 25-12 Assembly 1 Tray, Output Assembly 1 Tray, Output 1 Label, Tray Options 1 Sensor, Stapler Bin Empty 1 Sensor Cover, Stapler Bin Empty 1 Bail, Center Stapler 1 Kit, Stacking Bail 1 Cover, Left Base Assembly
  • Lexmark T620 | Service Manual - Page 414
    4069-5XX/7XX Assembly 25: StapleSmart Finisher (continued) 7-104 Service Manual
  • Lexmark T620 | Service Manual - Page 415
    99A2533 99A2523 99A2543 99A2528 Units Description 1 Clip, Static Ground 1 Stapler Cartridge Holder 321-C 1 Stapler Assembly 1 Bracket, Attach 1 Belt, Main Drive 1 Card Assembly, Right Stapler Bin Level 1 Arm Assembly, Belt Idler 1 Spring, Swing Arm 1 Bumper, Output Tray 1 Bar
  • Lexmark T620 | Service Manual - Page 416
    4069-5XX/7XX Assembly 25: StapleSmart Finisher (continued) 7-106 Service Manual
  • Lexmark T620 | Service Manual - Page 417
    4069-5XX/7XX AsmIndex 25-30 25-31 25-32 25-33 25-34 25-35 25-36 25-37 25- Shaft Assembly, Upper Drive 1 Shaft Assembly, 40T Middle Stacker 1 Pulley, Drive 1 Shaft Assembly, Lower 1 Belt, FHT 86T 1 Shaft Assembly, Lower Exit 1 Guide, Inner Bias 1 Frame Assembly, Left 1 Card Assembly,
  • Lexmark T620 | Service Manual - Page 418
    4069-5XX/7XX Assembly 25: StapleSmart Finisher (continued) 7-108 Service Manual
  • Lexmark T620 | Service Manual - Page 419
    99A2525 99A2530 99A2534 99A2524 99A2532 99A2504 99A2546 99A0548 Units Description 1 Paper Alignment Wheel 1 Gearbox Drive Assembly, Paper Aligner 1 Kit, Maintenance StapleSmart Wheels 1 Sensor, Stapler Pass Thru 1 Cable Assembly, Right Stapler Bin Level 2 Ground Cable, Stapler Tray Bar
  • Lexmark T620 | Service Manual - Page 420
    Assembly, PRESCRIBE 5/4/2 Flash 1 Card Assembly for IPDS and SCS/TNe 1 Hard Disk, with Control Board 5.0+ GB 1 Adapter Card, SES for SCS 1 Cable, Twinax 1 Cable, Coax 1 Adapter, Serial 1 Cable, Serial 1 Board, USB/Parallel Interface 1 Card Assembly, ImageQuick 7-110 Service Manual
  • Lexmark T620 | Service Manual - Page 421
    1 Tray, Universal Adjustable 250 Sheet 1 Drive, Optra Forms HD 5.0+ GB or larger 1 Kit, Cap/Stack Bails 500 1 MarkNet N2001e 10/100 ethernet 1 MarkNet N2002e 10base2/10baseT 1 MarkNet N2000t 4/16 1 Adapter, Omnibus INA Card 1 Paper Presentator, Front 1 Tray, Assembly UAT 400 Sheet
  • Lexmark T620 | Service Manual - Page 422
    Packet, Springs Paper Feed 1 Parts Packet, Duplex Option Fan Mounting 1 Parts Packet, Duplex Option Cam Follower Assembly 1 Parts Packet, Envelope Option Gears 1 Parts Packet, Retainers Envelope Option 1 Parts Packet, Screws Duplex 1 Parts Packet, 500 Sheet Feeder Option Shaft Bearings
  • Lexmark T620 | Service Manual - Page 423
    4069-5XX/7XX Assembly 27:Miscellaneous (continued) AsmIndex 27 27 27 27 27 27 Part Number Screws - Kiosk 1 Grease Packet, Nyogel 744 1 Grease Packet, IBM 23 1 Packaging, 4069 500/500 printer 1 Packaging, 4069 500/500 plus 500 Optional Tray 1 Parts Packet, Retainer Parts Catalog 7-113
  • Lexmark T620 | Service Manual - Page 424
    4069-5XX/7XX 7-114 Service Manual
  • Lexmark T620 | Service Manual - Page 425
    EP Factory Defaults 3-32 Setting Configuration ID 3-31 Setting the Page Count 3-30 Viewing the Permanent Page Count 3-30 Diagnostic Mode 3-6 Disabling Download Emulations 3-8 Disk Test/Clean 3-6 Duplex Option Board Connectors 5-9 Duplex Tests 3-8 E Envelope Option Board Connectors 5-7 Error Codes
  • Lexmark T620 | Service Manual - Page 426
    Connectors 5-1 M Maintenance Approach 1-3 Maintenance Page Count 3-31 Maintenance, Scheduled 6-2 Messages Check Device Connection Messages 2-39 Service Error Codes 2-2 User Error Messages 2-29 User Line 2 Link Messages 2-38 User Line 2 Messages 2-37 User Status Messages 2-24 O Output Bin Feed Test
  • Lexmark T620 | Service Manual - Page 427
    Upper Front Cover Interlock Switch Assembly 4-62 Restore EP Factory Defaults 3-32 ROM Memory Test 3-15 S Safety Information xix Safety Inspection Guide 6-1 Scheduled Maintenance 6-2 Screw Identification Table 4-7 SDRAM Memory Test 3-15 Serial Wrap Test 3-17 Service Checks Charge Roll 2-47 Cover Open
  • Lexmark T620 | Service Manual - Page 428
    Printer 2-42 Duplex Option 2-44 Envelope Feeder Option 2-44 High Capacity Feeder Option 2-43 Output Expander Option 2-45 Paper Tray Options 2-44 U Unique Tools 1-3 User Line 2 Link Messages 2-38 User Line 2 Messages 2-37 User Status Messages 2-24 V Viewing the Permanent Page 7-29 I-4 Service Manual
  • Lexmark T620 | Service Manual - Page 429
    4069-5XX/7XX 99A0181 7-31 99A0184 7-31 99A0185 7-31 99A0188 7-79 99A0191 7-63 99A0196 7-29 99A0197 7-89, 7-91 99A0206 7-41 99A0208 7-89, 7-91, 7-113 99A0219 7-79 99A0226 7-89 99A0227 7-39 99A0231 7-89, 7-91 99A0232 7-89, 7-91 99A0234 7-89, 7-91, 7-113 99A0240 7-89, 7-91, 7-113 99A0260 7-41 99A0263
  • Lexmark T620 | Service Manual - Page 430
    7-112 99A0711 7-112 99A0712 7-112 99A0714 7-79 99A0715 7-81 99A0716 7-75 99A0717 7-87 99A0719 7-79 99A0720 7-87 99A0725 7-27 99A0867 7-7 99A0893 7-55 99A0897 7-29 99A0899 7-9 I-6 Service Manual
  • Lexmark T620 | Service Manual - Page 431
    4069-5XX/7XX 99A0906 99A0907 99A0912 99A0913 99A0914 99A0915 99A0923 99A0954 99A1015 99A1017 99A1054 99A1055 99A1059 99A1129 99A1134 99A1164 99A1280 99A1501 99A1502 99A1504 99A1505 99A1507 99A1508 99A1510 99A1511 99A1512 99A1516 99A1517 99A1518 99A1519 99A1520 99A1522 99A1524 99A1525 99A1531
  • Lexmark T620 | Service Manual - Page 432
    91 7-89, 7-91 7-89 7-91 7-99 7-99 7-99 7-99 7-99 7-99 7-99 7-101 7-99 7-101, 7-107 7-99 7-99 7-101 7-101 7-101 I-8 Service Manual 99A1723 99A1724 99A1725 99A1726 99A1727 99A1728 99A1729 99A1730 99A1731 99A1732 99A1734 99A1735 99A1736 99A1737 99A1738 99A1739 99A1740 99A1741 99A1742 99A1743 99A1744
  • Lexmark T620 | Service Manual - Page 433
    4069-5XX/7XX 99A1786 99A1787 99A1788 99A1789 99A1790 99A1791 99A1792 99A1793 99A1794 99A1795 99A1796 99A1797 99A1798 99A1799 99A1800 99A1801 99A1802 99A1803 99A1804 99A1805 99A1806 99A1807 99A1808 99A1809 99A1812 99A1817 99A1818 99A1819 99A1820 99A1829 99A1832 99A1854 99A1855 99A1857 99A1879
  • Lexmark T620 | Service Manual - Page 434
    103 7-103, 7-112 7-103 7-103 7-103 7-107 7-107 7-107 7-107 7-107 7-103 7-103 7-103 7-105 7-109 7-109 7-105 7-107 7-105 I-10 Service Manual 99A2529 99A2530 99A2531 99A2532 99A2533 99A2534 99A2537 99A2538 99A2539 99A2540 99A2541 99A2542 99A2543 99A2544 99A2545 99A2546 99A2547 99A2548 99A2549 99A2551
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4069-5xx/7xx
Lexmark™ T62X
Lexmark and Lexmark with diamond
design are trademarks of Lexmark
International, Inc., registered in the
United States and/or other countries.
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