Lexmark E250D Service Manual

Lexmark E250D - E B/W Laser Printer Manual

Lexmark E250D manual content summary:

  • Lexmark E250D | Service Manual - Page 1
    Edition: July 2, 2008 Lexmark™ E250d and E250dn 4512-220 4512-230 • Table of contents • Start diagnostics • Safety and notices • Trademarks • Index 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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    6000-XXX -ii
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    iii
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    typographical errors. services, except those expressly designated by the manufacturer, are the user's responsibility. Lexmark, Lexmark with diamond design, MarkNet, and MarkVision are trademarks of Lexmark Lexmark International, Inc. All rights reserved. UNITED STATES GOVERNMENT RIGHTS This software
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    error messages 2-2 Common primary light patterns 2-3 Primary codes 2-4 Common secondary light patterns 2-12 Secondary error codes 2-14 Service codes 2-23 Messages and error codes 2-29 User attendance messages 2-29 Paper jam error codes 2-29 Service error codes 2-33 Diagram of the printer
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    Locations 5-1 Front view 5-1 Rear view 5-1 Controller card connector pin values 5-2 Connectors 5-4 Preventive maintenance 6-1 Safety inspection guide 6-1 Lubrication specifications 6-1 Maintenance kits 6-1 Parts Catalog 7-1 How to use this parts catalog 7-1 vi Lexmark™ E250d and E250dn
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    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 E250D | Service Manual - Page 8
    laser, som arbejder på bølgelængdeområdet 770-795 nanometer. Lasersystemet og printeren er udformet således, at mennesker aldrig udsættes for en laserstråling over Klasse I-niveau ved normal drift, brugervedligeholdelse eller obligatoriske servicebetingelser. viii Lexmark™ E250d and E250dn
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    del är öppnad och spärren är urkopplad. Betrakta ej strålen. Laser-notis Denna skrivare är i USA certifierad att motsvara kraven i ndning, underhåll som utförs av användaren eller annan föreskriven serviceåtgärd. Laser-melding Skriveren er godkjent i USA etter kravene i DHHS 21 CFR, underkapittel
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    4512-220, -230 x Lexmark™ E250d and E250dn
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    components. The manufacturer is not responsible for safety in the event of use of unauthorized 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 be an increased
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    y tomar las precauciones necesarias. • PRECAUCIÓN: este símbolo indica que el voltaje de la parte del equipo con la que está trabajando es peligroso. Antes de empezar, desenchufe el equipo estar ligado à corrente eléctrica para realizar a tarefa necessária. xii Lexmark™ E250d and E250dn
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    producte. El personal professional ha d'estar-ne assabentat i prendre les mesures convenients. • PRECAUCIÓ: aquest símbol indica que el voltatge de la part de l'equip amb la qual esteu treballant és perillós. Abans de començar, desendolleu l'equip o extremeu les precaucions si, per treballar
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    contains an error indicator table, symptom tables, and service checks used to isolate failing field replaceable units (FRUs). 3. Diagnostic aids contains tests and checks used to locate or repeat symptoms of printer problems. 4. Repair information provides instructions for making printer adjustments
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    4512-220, -230 1. General information The Lexmark™ E250d and E250dn are monochrome laser printers designed for single users or small workgroups. This book contains information on E250n and E250dn. For information on E352dn, see the 4512-430 service manual. Models There are two models covered in this
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    error, such as a paper jam. • Press and release Continue twice quickly to display a secondary error code following an error. • Press and release Cancel to cancel the job currently printing. • Press and hold Cancel until all of the lights come on to reset the printer. 1-2 Lexmark™ E250d and E250dn
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    Optional SDRAM 128MB Optional SDRAM 256MB Maximum DRAM Optional flash memory 32MB Optional font cards (DBCS) Print speed 4512-220 Lexmark E250d 32MB ✔ ✔ n/a n/a 96MB 1 1 4512-230 Lexmark E250dn 32MB ✔ ✔ n/a n/a 96MB 1 1 Media Size 4512-220 Lexmark E250d Letter-8.5 x 11 in. 30 ppm A4-210 x 297
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    -220 Lexmark E250d Available input trays 250-sheet tray ✔ 550-sheet option drawer ✔ 550-sheet tray optional Dust cover optional Toner and photoconductor Toner cartridge 1,500 standard pages SWE 3,500 standard pages after market¹ High yield toner cartridge n/a Photoconductor kit Up
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    220, -230 Connectivity and compatibility Item 4512-220 Lexmark E250d 4512-230 Lexmark E250dn Data stream emulations PCL 6 PostScript 3 HBP ✔ ✔ (Mac only) ✔ ✔ ✔ PPDS n/a n/a Compatibility Windows/Macintosh/Linux¹ Windows/Macintosh/Linux¹ Standard local connections Parallel (IEE 1284
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    X 127mm Universal (max) paper: 216 X 357mm (legal size) ¹ Single sided paper labels are supported for the occasional use of less than 20 pages per month. They must exit through the rear door may occur on 16# paper. 7 Input using manual feeder is reduced to 1/2 speed 1-6 Lexmark™ E250d and E250dn
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    ) **Sensors are measured at rotation/position which they are tripped A Paper path B Manual feed sensor C Upper end feed rolls D Input sensor E Transfer roll F Fuser G Fuser exit rolls H Fuser exit sensor I Exit rolls J Exit sensor K Duplex unit L Duplex sensor M Auto
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    printer after loading them. • Make sure paper guides are positioned before loading the paper or specialty media. • Do not remove trays while a job is printing. Wait for a Load Paper light • Volt-ohmmeter • #1 and #2 Phillips screwdriver • Slotted screwdriver • Flashlight 1-8 Lexmark™ E250d and E250dn
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    CRC DIMM EEPROM ENA FRU Replaceable Unit Host Based Printing High Voltage Power Supply Liquid Crystal Diode Light Emitting Diode Laser Scanning Unit Low Voltage Power Supply Nonvolatile Random Access Memory Photoconductor Printer Control Language Power-On Reset Power-On Self Test Personal Printer
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    4512-220, -230 1-10 Lexmark™ E250d and E250dn
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    the corrective action to repair a printer, look for the following information: • A description of a problem, see "Symptom tables" on page 2-37. • Information from the operator panel of the printer. - Models E250d and E250dn have an operator panel containing lights and buttons. Warning: Paper clips
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    error codes" on page 2-25) indicate specific errors. See "Service codes" on page 2-23. Note: If data is sent to the printer and all lights flash immediately, and double-clicking does not change the display, there may be a code problem. Contact the next level of support. 2-2 Lexmark™ E250d and E250dn
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    Load manual feeder 7 z z z z z Toner low¹ 7 Toner cartridge region mismatch 8 z Photoconductor kit life warning² 8 Replace photoconductor (printer 8 ✷ hard stop) Programming engine code/ 9 z Programming system code Invalid engine code / Invalid 9 z network code Service error
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    in the Ready mode, and Hex Trace is active. Action • Advance users can use Hex Trace to help troubleshoot printing problems. After resolving the problem, turn off the printer to exit Hex Trace. Wait for the message to clear. • Press and hold Cancel to reset the printer. 2-4 Lexmark™ E250d and E250dn
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    (dpi) to 300 dpi to prevent a memory full error. Action • Wait until the control panel returns to Ready to print other jobs. • Press and release Cancel to cancel the print job. • Press and hold Cancel to reset the printer. Not ready z Meaning The printer is not ready to receive or process data
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    print job is canceled. • The printer is resetting to the user default settings. Any active print jobs are canceled. A user default setting remains in effect until it is changed or has restored the factory default settings. Action Wait for the message to clear. 2-6 Lexmark™ E250d and E250dn
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    the manual feeder. • Press Continue to resume printing. • Press Cancel to reset the printer. Toner low z z Meaning The printer is ready to receive and process data. In addition, the toner in the toner cartridge is getting low. Action • Press and release Continue to clean the light sequence
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    z Meaning The photoconductor kit is full and must be replaced. The printer will not print any more pages until the photoconductor kit is replaced. Action • Press and release Continue to print a photoconductor kit instruction page. • Replace the photoconductor kit. 2-8 Lexmark™ E250d and E250dn
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    . Action Download valid engine code to the internal print server. Service error ✷ ✷ ✷ ✷ ✷ ✷ Meaning The printer has a service error, and printing has stopped. Action Press Continue twice to see the secondary code. See "Service codes" on page 2-23 to locate the problem. Diagnostic
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    media. Action • Make sure the print media that is loaded is large enough. • Open the front door, clear the paper path, and close the door to resume printing. • Press Continue to clear the light sequence and continue printing. • Press Cancel to cancel the print job. 2-10 Lexmark™ E250d and E250dn
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    Output bin full ✷ Meaning The output bin is full. Action • Remove printed pages from the output bin. • Press Continue to clear the error code. 4512-220, -230 Diagnostic information 2-11
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    error code light sequence. The following table shows what these light sequences mean and where to go for help. Secondary light sequences (paper jams) Printer Condition Page Paper jam at the input sensor 14 Paper jam in the manual ✷ z z ✷ z z ✷ z z ✷ ✷ z 2-12 Lexmark™ E250d and E250dn
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    . Press and release Continue twice quickly to display the secondary error code light sequence. The following table shows what these light sequences mean and where to go for help. Secondary light sequences (printer errors) Printer Condition Page Complex page 17 z Insufficient collation area 17
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    media is most likely in the fuser area under the toner cartridge assembly. Action Clear the paper jam. Paper jams as a printed job exits the printer z z z Meaning A paper jam has occurred as the print media is exiting the printer. Action Clear the paper jam. 2-14 Lexmark™ E250d and E250dn
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    Paper jam in the 250-sheet tray z z z Meaning A paper jam has occurred in the 250-sheet tray. Action Clear the paper jam. Paper jam in the 550-sheet drawer z z Meaning A paper jam has occurred in the 550-sheet drawer. Action Clear the paper jam. Paper jam (duplex) z ✷ ✷ Meaning A
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    (duplex - unsupported size) z ✷ ✷ z Meaning A paper jam has occurred in the duplex unit due to an unsupported print media size. Action Clear the paper jam. 2-16 Lexmark™ E250d and E250dn
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    download fonts or macros. • Set Page Protect to On in the Local Printer Setup Utility. • Install additional printer memory. Insufficient collation area z z z Meaning The printer memory does not have the free space necessary to collate the print job. This may happen due to one of these errors
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    printer settings that have been changed. Font error z ✷ z Meaning The printer does not have enough memory to save the data in the buffer. Action • Install additional memory. • Press Continue to continue printing the job. • Press Cancel to cancel the print job. 2-18 Lexmark™ E250d and E250dn
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    graphics on the page and deleting unnecessary downloaded fonts or macros. • Install additional printer memory. ENA connection lost z ✷ z Meaning The printer cannot establish communication with the network. Action Press Continue to clear the code and continue printing. (The previous print job
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    the code and continue printing the job. • Press Cancel to cancel the print job. Invalid engine code z z z Meaning The engine code has not been programmed, or the programmed code is not valid. Action Download the valid engine code to the internal print server. 2-20 Lexmark™ E250d and E250dn
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    Action Download the valid engine code to the internal print server. Toner cartridge region mismatch z ✷ z Meaning The geographic region of the printer does not match the geographic region of the installed toner cartridge. Action Remove the toner cartridge, and install a new toner cartridge
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    off. • Remove the toner cartridge, and replace it with a supported toner cartridge. • Turn the printer back on. Too many options attached z z z z Meaning This message refers to too many flash options. Action Press Continue briefly to clear the message. 2-22 Lexmark™ E250d and E250dn
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    cannot directly determine that a fan has failed, but can sense the higher temperature at the fuser or printhead. • If data is sent to the printer and all lights flash simultaneously, and double-clicking does not produce a secondary code, there may be a code problem. Contact the next level of support
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    codes Lights 900-Software 900-Software ✷ ✷ 91x-DC motor or transfer roll ✷ 92x-Fuser or toner sensor ✷ 93x-Printhead, drive motor ✷ ✷ 94x-LVPS service error ✷ 95x-Controller card (NCRAM, ROM, or NAND) ✷ ✷ 96-RAM memory ✷ ✷ 97x-Network ✷ ✷ ✷ ✷ ✷ ✷ ✷ ✷ 2-24 Lexmark™ E250d
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    codes Service tertiary error codes Service error codes are generally non-recoverable except in an intermittent condition when POR (power-on reset) is performed which allows the printer to temporarily recover from the error. Note: All service errors are initially communicated by all lights flashing
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    problem in the fuser (see fuser service check...), a stalled fan motor, or a faulty toner sensor or toner cartridge. Multiple errors indicate replacing the corresponding part. Service tertiary error codes-fuser, fan, or toner sensor Lights Service secondary codes-92x ✷ ✷ Service tertiary codes
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    . Replace the printhead as necessary. Codes 936 and 937 indicate a problem in the drive system motor. Code 939 indicates a communication failure between the RIP and engine processors. Service tertiary error codes-printhead, transport motor, or RIP engine communicator Lights Service secondary codes
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    . Service tertiary error codes-network error Lights Service secondary codes-97x ✷ ✷ ✷ ✷ Service tertiary codes-network error 975-Unrecognizable network port ✷ ✷ ✷ 976-Unrecoverable software error in network port ✷ ✷ ✷ 978-Bad checksum while programming port ✷ ✷ 979-Flash parts
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    The printer operator panel displays light patterns describing the current state of the printer and indicates possible printer problems that must be resolved. This topic provides a list of all printer messages and explains what they mean. User attendance messages Cartridge error codes Error 31
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    manual feeder sensor. The media is too long over the manual feeder sensor. Possible causes include multi-sheet feed, media size (length) problem detected during warm-up. Printhead Driver: Mirror motor fell out of at the developer nip, but laser servo cleanup is not complete. Lexmark™ E250d and E250dn
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    jam error codes (Continued) Error 201 sensor Restart attempted after an internal jam without the cover open/close event. It is likely that the jam was never cleared. error picking from the duplex. x1=source, x2+x3=time since pick Paper never reached the input sensor, but was detected at the manual
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    . Pages in the paper path have been flushed to the output bin. Second pick from manual feeder, tray 1, or feeder failed when media was in the source while the other sheets were committed to the paper path. Media never reached the input sensor from the manual feeder. 2-32 Lexmark™ E250d and E250dn
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    performed and the printer can temporarily recover from the error condition. Service error codes (9xx) Error Description Engine software service errors 902.xx Engine software error Transfer service errors 917.00 Transfer service error 917.01 Transfer servo result too low. Fuser service errors 920.00
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    -220, -230 Service error codes (9xx) (Continued) Error Description 924.01 Open thermistor check failure. This applies to the fuser and belt fusers. 924.02 Open thermistor check failure. The ADC failed to converge. Possible noisy thermistor signal. This applies to the fuser and belt fusers. 925.01
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    Service error codes (9xx) (Continued) Error Description 935.26 Printhead sweep error, timed out waiting for end of sweep Transport motor service errors .03 Overspeed detected during speed control Power supply service errors 940.00 LVPS service error 940.01 Line frequency outside allowed range of 45Hz
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    NPA Mode Parallel Buffer Advanced Status Protocol Honor Init Parallel Mode 2 MAC Binary PS Network Menu PCL SmartSwitch PS SmartSwitch NPA Mode Network Buffer Mac Binary PS Std Net Setup USB Menu PCL SmartSwitch PS SmartSwitch NPA Mode USB Buffer Mac Binary PS 2-36 Lexmark™ E250d and E250dn
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    POST symptom table Note: Investigate any displayed codes before proceeding with these symptoms. For example, a missing toner cartridge will prevent POST from completing. Symptom The main motor, cooling fan, and fuser do not come on. POST completes, except one or more lights do not come on. None of
  • Lexmark E250D | Service Manual - Page 62
    ). Fan noisy or fan not working. Fuser parts melted. Toner not fused to the media. Paper jams. Main motor noisy or not moving. Media skew. Printer not communicating with host. Front access cover will not close. Operator panel button not responding. Operator panel lights are off or very dim. Blank
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    replaced at the same time. Action POST (Power-On Self Test) Note: The printer should complete POST in approximately 30 seconds. If the printer fails to display lights or activate the drive motor, fuser panel service check" on page 3-43. Verify +24 V dc input from the LVPS/HVPS. 1. Turn the printer
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    interlock switch. • If both pass continuity, turn the printer on, and measure +5 V dc on pin 2 at J6 on the controller card. • Verify pin 3 at J6 is ground. • If voltage or ground is not present, see "Controller card service check" on page 2-39 for more information. 2-40 Lexmark™ E250d and E250dn
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    • 200 V ac-240 V ac for the 220 V model printer This printer uses a belt fuser and therefore does not have a lamp. Fuser service check FRU Fuser power cable LVPS/HVPS Fuser Fuser Action Unplug the printer, and disconnect the fuser cable plug from the LVPS/HVPS board connector at PCN5. Check for
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    the motor. - If continuity does not exist on one or more of the wires, replace the motor cable. • If these voltages are not correct, see "Controller card connector pin values" on page 5-2, or replace the controller card. See "Controller card removal" on page 4-13. 2-42 Lexmark™ E250d and E250dn
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    page 3-39. Buttons If the buttons do not respond, replace the operator panel. There is no test or repair for the faulty switches. Paper feed service checks Paper jam error indication during POST FRU Fuser (exit sensor) Input/duplex sensor Manual feed sensor Action If the exit sensor flag, which
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    and 4. • The resistance should be 180-250 ohms. • If it is not, replace the solenoid assembly. • If the resistance is 180-250 ohms, check the controller card. See "Controller card service check" on page 2-39 for more information. Replace controller card as necessary. 2-44 Lexmark™ E250d and E250dn
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    . 4. If the internal print test page prints correctly, the user's application/printer driver is set up correctly, and the correct bidirectional parallel cable is installed, but the printer still fails to print on command from the host computer, replace the controller card. 5. Check the USB cable for
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    roll gear. • If there is not continuity, call the next level of service. Try a different toner cartridge and PC kit. • If those fail, replace the LVPS/HVPS, controller card, or the printhead in that order. Also, see "Solving print quality problems" on page 3-50. 2-46 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 71
    Action Check the toner darkness setting in the driver. Try a lower setting. Make sure the toner cartridge and PC Kit are correctly installed and the high voltage contacts are clean. If the toner cartridge and PC Kit are installed correctly, try a new PC Kit first and then toner cartridge. Check the
  • Lexmark E250D | Service Manual - Page 72
    proper temperature to fuse the toner to the paper. See"LVPS/HVPS service check" on page 2-42 for more information. Try changing the setting to heavier paper or even card stock.1 Make sure recommended media is being used. Check the media settings in the printer driver. 2-48 Lexmark™ E250d and E250dn
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    230 Light print FRU Toner cartridge (not a FRU) Transfer roll LVPS/HVPS card Action Make sure the toner cartridge and PC Kit are installed correctly and that the toner cartridge is not low on toner. If the problem continues, install a new toner cartridge. Recheck condition before replacing PC Kit
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    cartridge or the fuser may be the cause due to excessive page count or defect. Replace as needed. If the lines are parallel and match the two intended ghost images, the Form Type may be incorrectly set. Check those settings. The PC cleaner sump may be full. Replace the PC kit. 2-50 Lexmark™ E250d
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    setting from the printer driver. • Try a different type of paper. Media designed for copiers gives the best quality. • Replace the toner cartridge. • The toner cartridge may be out of toner or defective. Replace the cartridge. • There may be a software error. Re-initialize the printer by turning it
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    . • Check the feed tires. (See two preceding actions.) • The printer is waiting on the next command. • Clear all jams. • Press and release , or open and close the printer cover to restart the printer. • Make sure the toner cartridge assembly is installed properly. 2-52 Lexmark™ E250d and E250dn
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    command. • Make sure the toner cartridge assembly is installed properly. • Make sure the printer front cover is closed. • Ensure the correct PostScript driver is being used. • The printer doesn't have enough memory to print the job. Install more memory. Printhead service check FRU Printhead Note
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    4512-220, -230 2-54 Lexmark™ E250d and E250dn
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    . Print Diagnostic menus by pressing and holding until the lights flash, then release the button. The Ready/ Data LED will blink when the page is being formatted and printed. Note: The Configuration Mode Instruction page and Diagnostic menu page in this manual are samples only and may not match your
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    4512-220, -230 Configuration Menu printout sample Note: The light sequences change relative to the option on the printer. 3-2 Lexmark™ E250d and E250dn
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    Diagnostics mode printout sample Note: The light sequences change relative to the options on the printer. 4512-220, -230 Diagnostic aids 3-3
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    and holding . 4. Close the cover once the light displays. Print menus by pressing and holding until the lights flash. Utilities Use the Utilities menu to troubleshoot printer problems. Setting Reset Factory Defaults Hex Trace Print Quality Test Pages Reset Photoconductor Counter Use setting to
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    NPA Mode Protocol Parallel Mode 2 MAC Binary PS Send print jobs to the printer and query printer status information simultaneously. Receive information at a much higher transmission rate if the printer is set to Fastbytes (if the computer supports Fastbytes) or receive information at a normal
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    processes raw binary PostScript print jobs from computers using the Macintosh operating system. This setting often causes Windows print jobs to fail. Auto (default)-The printer processes print jobs from computers using either Windows or Macintosh operating systems. 3-6 Lexmark™ E250d and E250dn
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    processes print jobs from computers using either Windows or Macintosh operating systems. Set Card Speed Automatically detect the connection speed of the network. This setting can be disabled to set the speed manually. Auto (default)-the printer detects current network speed. 10Mbps, half duplex
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    ID Allow the printer ID to match the label ID after the controller card is replaced. 000101 (default) 000189 Printer alignment A step-by-step process to align a new printhead. See "Printhead assembly electronic adjustment" on page 3-9 for more information. None 3-8 Lexmark™ E250d and E250dn
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    right side of the Step 1 test page. 4. Press and release to change the light sequence for on the right side of the Step 1 test page. See note See note z z Note: Lights (on, off, or flashing) represent current settings that must be changed for the new printhead. Diagnostic aids 3-9
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    and release 8. Press and release vertical bar. to move to the light sequences on the right side of Step 2 test page. to change the light sequence to the number beside the darkest portion of the See note on page 3-9. See note on page 3-9. z z z 3-10 Lexmark™ E250d and E250dn
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    cycle to print Step 3 test page. Step 3 printout (sample only; use actual sheet) 4512-220, -230 10. Press and release to change the light sequence to the number beside the darkest portion of the vertical bar. See note on page 3-9. See note on page 3-9. z z z 11. Press and release
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    load/remove paper light will be displayed to indicate that the final level of the menu has been reached. 14. Verify that the overall darkest line across the page is "0." If not, then run the alignment again. 15. Turn the printer off to exit the printer alignment menu. 3-12 Lexmark™ E250d and E250dn
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    . Note: Skew is caused by a sheet being fed through the printer while misaligned. The entire image is rotated relative to the sheet edges assembly) for wear, the paper path for obstructions, the fuser for proper setting, and the tray paper guides for fit to the media. To adjust the printhead: 1.
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    flap align below the corresponding lines on the left flap, adjust the printhead clockwise relative to the printer and recheck. (See the left side of the figure below.) If the grid lines of the electronically. See "Printhead assembly electronic adjustment" on page 3-9. 3-14 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 93
    Note: 1. Remove the toner cartridge and media tray before removing other printer parts. The toner cartridge should be protected from light while out of the printer. 2. We recommend disconnecting all external cables from the printer to prevent damage during service. 3. Unless otherwise stated
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    be lifted up and away from its pivot. Relax the hinge above the pivot. 7. In the same manner, move the left hinge from its pivot point. 4-2 Lexmark™ E250d and E250dn
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    4512-220, -230 8. Tilt the front cover down, and disconnect it on the left side from the link. Warning: Make sure that the link is not bent or pulled out farther than normal. Otherwise, the toner cartridge coupler may become dislodged. 9. Remove the front access cover. Repair information 4-3
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    the screw (A). 5. Unlatch the cover from the latches (B). 6. Position the printer with the left rear corner hanging over the edge of the table. 7. Swing the cover open. 8. Lift the top rear of the cover over the pivot point, and drop the cover away from the printer. 4-4 Lexmark™ E250d and E250dn
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    removal 1. Remove Tray 1. 2. Open the front access cover. 3. Open the rear door. 4. Release the latches (A), and swing the cover open. 4512-220, -230 5. Position the printer with the right rear corner hanging over the edge of the table. 6. Lift the top rear of the cover over the pivot
  • Lexmark E250D | Service Manual - Page 98
    4-4. 3. Remove the two screws (A). 4. Open the rear cover. 5. Lift the rear cover, unhooking it from the frame at the bottom, and remove. Note: In re-installation, check to make sure that the fuser ground cable is routed out of the way and is not pinched or damaged. 4-6 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 99
    4512-220, -230 Top cover removal 1. Remove the right side cover. See "Right side cover removal" on page 4-5. 2. Remove the left side cover. See "Left side cover removal" on page 4-4. 3. Open the rear door. 4. Remove the two screws (A) from the two front corners on the top cover, the two screws (B)
  • Lexmark E250D | Service Manual - Page 100
    of the top cover with the paper exit guide along the mating edges at the rear of the exit tray. • Verify that the rollers in the top cover contact the exit guide rollers at the top rear. There are arrows under the top cover to verify the location of the rollers. 4-8 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 101
    clutch removal" on page 4-10. 3. Use a spring hook or a small screwdriver to rotate the latch toward the bottom of the printer until it is pointing downward. 4. Lay the printer on its top. Be sure to protect it from marring. 5. Raise the auto comp, and unhook the counter balance spring (A). Repair
  • Lexmark E250D | Service Manual - Page 102
    may have to be applied to the shaft. Use a finger or small screwdriver against the coupler behind the clutch. A 4. Remove the auto comp clutch. 4-10 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 103
    the shaft from the ACM. 4. Remove the auto comp drive shaft assembly. 5. Use a screwdriver to align the ACM with the shaft bearing to help in installation. Repair information 4-11
  • Lexmark E250D | Service Manual - Page 104
    4512-220, -230 Bezel removal 1. Open the front access cover. 2. Remove the two screws (A). A 3. Lift the lower edge of the shield, slide it to the right, and remove. 4. Release the four inner latches (B). 5. Remove the bezel and lens while the door remains open. 4-12 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 105
    all the cables from the controller card, and remove cables from the shield housing. Warning: Do not replace the controller card and the operator panel at the same time. Each card contains the printer settings. When either of these cards is new, it obtains its settings from the other card. Critical
  • Lexmark E250D | Service Manual - Page 106
    remove the card. Re-installation note: When replacing the controller card, make sure to route all of the cables through the correct shield opening. Make sure that the ground wire that is being held by the front, upper screw is in the correct location before installing. 4-14 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 107
    4512-220, -230 Cover open sensor removal 1. Remove Tray 1. 2. Open the front cover. 3. Open the right side cover. See steps 1 and 2 of "Right side cover removal" on page 4-5. 4. Remove the controller card cover. 5. Loosen the one screw (A) from the shield that protects the sensor. 6. Disconnect the
  • Lexmark E250D | Service Manual - Page 108
    from marring. 3. Remove the six screws (A), the machine screw (B), and the ground cable screw (C). B A C 4. Lift the main motor drive, and disconnect the motor cable (D). 4-16 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 109
    5. Remove the coupling spring (E). 4512-220, -230 6. Remove the developer drive coupling (F). Repair information 4-17
  • Lexmark E250D | Service Manual - Page 110
    the screw (C) opposite from screw (B) on the other side of the printer. Note: The ground cable is attached to screw (C). When re-installing, be sure to reconnect the ground cable. 8. Remove the media level indicator. See "Media level indicator removal" on page 4-33. 4-18 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 111
    9. Remove the six screws (D). 4512-220, -230 10. Lift the right side (opposite the coupler) and remove the duplex. Note: At re-installation, before tightening the screws, locate the duplex unit against the left side frame. (Left side relative to the picture above.) Repair information 4-19
  • Lexmark E250D | Service Manual - Page 112
    (A) (the screw and plastic retainer). 4. Remove the duplex coupling (B) and mating link. Note: The link (not shown) that connects the duplex and duplex coupling is part of this FRU as well as the duplex FRU. 4-20 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 113
    from J4 on the controller card. Note: Be sure to remove the toroid before removing the cables. When re-installing, be sure to place the toroid back over the same cables. 4. Remove the cable from its retainer. 5. Remove to be not needed and has been removed from the FRU list. Repair information 4-21
  • Lexmark E250D | Service Manual - Page 114
    the one machine screw (B) that secures the ground cable. 7. Disconnect the thermistor cable above the fuser. 8. Remove the controller card cover. 9. Disconnect the exit sensor cable from J11 on the controller card. 10. Disconnect the fuser power cable above the fuser. 4-22 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 115
    Reinstallation note: • Be sure to reroute the cables back through their retainers. • If the printer has been moved following the removal of the fuser, verify that the cross shaft behind the fuser is in place. • Place the fuser into the opening, and push levers (A) to open the latches (B). Push the
  • Lexmark E250D | Service Manual - Page 116
    printer. 5. Remove the four screws (A), the machine screw (flange head) (B), and the machine screw (button head) (C). 6. Use the hook end of a spring hook to disconnect the fuser power cable from the LVPS/HVPS side. Note: The connector latch (D) is toward the side frame as shown. 4-24 Lexmark™ E250d
  • Lexmark E250D | Service Manual - Page 117
    4512-220, -230 Link developer drive and access door removal 1. Remove the main motor drive. See "Main motor drive removal" on page 4-28. 2. Remove the coupling assembly. See "Developer drive coupling assembly removal" on page 4-16. 3. Disconnect the front access door from its hinges. See "Front
  • Lexmark E250D | Service Manual - Page 118
    mar the finish of the printer. 3. Remove the four screws (A), the machine screw (B) and the machine screw (C). 4. Unhook the red cable (D) located in the left side frame. 5. Lift the metal cover so the connecting cables (E) and (F) can be unplugged on the side shown. 4-26 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 119
    assembly into final position. CAUTION: Make sure that the mylar card is located inside the overlapping flanges to avoid damage to the printer. • It is easy for the cables to become pinched during re-installation. Make sure that the cables are free during re-installation. Repair information 4-27
  • Lexmark E250D | Service Manual - Page 120
    page 4-4 for more information. 2. Tilt the printer onto its right side, and remove the six install it in the new drive. 3. Lift the motor end, and disconnect the main motor cable (D). B A D C 4. Lift the gear assembly, and remove the developer drive spring (E). 4-28 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 121
    4512-220, -230 5. Rotate the motor drive counterclockwise until the two plastic links can be separated. 6. Remove the main motor drive. Repair information 4-29
  • Lexmark E250D | Service Manual - Page 122
    finish of the printer. 5. Lift the door on the duplex and auto comp. 6. Remove the screw (A). 7. Free the cable from its retainer, and pull it through the opening toward the sensor mount. Re-installation note: • Insert three retainers between the sensor and side frame. 4-30 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 123
    4512-220, -230 Manual paper feed clutch 1. Open the left side cover. See "Left side cover removal" on page 4-4 for more information. 2. Tilt the printer onto its right side, . 5. Use a thin screw driver to remove the clip (E). 6. Remove the manual paper feed clutch. Repair information 4-31
  • Lexmark E250D | Service Manual - Page 124
    to a point close to the left side as possible. 3. Remove the main motor drive. See "Main motor drive removal" on page 4-28. 4. Remove the auto comp clutch. See "Auto comp clutch removal" on page 4-10. 5. Remove the three screws (A). 6. Remove the manual feed solenoids. 4-32 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 125
    Media level indicator removal 1. Remove the left side cover. See "Left side cover removal" on page 4-4. 2. Turn the printer onto its top. (Be careful to protect the covers.) 3. Unhook and remove the spring (A). 4512-220, -230 A 4. Unhook the link (B) from the indicator level. Repair
  • Lexmark E250D | Service Manual - Page 126
    LVPS/HVPS shield (D). 7. Align the link end of the shaft with the opening in the side frame, and remove the shaft and spring anchor (E). 4-34 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 127
    Narrow media sensor removal 1. Remove the top cover. See "Top cover removal" on page 4-7. 2. Turn the top cover upside down. 3. Remove the ground strap screw (A) and the ground strap. 4512-220, -230 4. Remove the narrow media sensor. Repair information 4-35
  • Lexmark E250D | Service Manual - Page 128
    bezel by unlatching the four tabs (B). 5. Close the front cover. 6. Disconnect the cable printer settings. When either of these cards is new, it obtains its settings from the other card. Critical factory settings are lost when both are new and replaced at the same time. 4-36 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 129
    4512-220, -230 Paper exit guide assembly removal 1. Remove the rear cover. See "Rear cover removal" on page 4-6. 2. Remove the the gears on the assembly from touching other items while removing, especially the fuser mounting bracket. 5. Remove the paper exit guide assembly. Repair information 4-37
  • Lexmark E250D | Service Manual - Page 130
    the points on the edge. Those points should be directed in the paper feed direction as shown. 6. Make sure the new paper feed rollers are captured between the rims of the plastic hub. 7. If the orientation is questionable, run Print Quality sheets, and check for skew. 4-38 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 131
    " on page 4-18. 2. Remove screws (A) holding the two sensors. 4512-220, -230 3. Remove the sensor assembly. Note: Be sure to secure cables in retainers when installing the new assembly. The solenoid cable should be installed on top of the sensor cables. Repair information 4-39
  • Lexmark E250D | Service Manual - Page 132
    Remove three screws (D) securing the printhead. 6. Remove the printhead. Reinstallation note: • Install the new printhead by lining up the alignment knub with the indicator located at the front necessary step. See "Printhead assembly electronic adjustment" on page 4-8. 4-40 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 133
    side cover removal" on page 4-5. 3. Disconnect the cable from J9 (DP REV SOL) on the controller card. 4. Remove the two screws (A). 5. Remove the reversing solenoid. Toner level sensor removal 1. Remove Tray 1. 2. Open the front access cover. 3. Open the right side cover. 4. Unplug the
  • Lexmark E250D | Service Manual - Page 134
    springs to assure that they are on the posts. The top of the springs must be captured in the bearings of the transfer roll. 4-42 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 135
    4512-220, -230 Tray 2 auto comp tire removal Gently pull the rubber tire loose from the wheel, and replace it with a new tire. Note: Look at the nap of the tire, and orient the tire for highest friction when picking the paper. Repair information 4-43
  • Lexmark E250D | Service Manual - Page 136
    with a flat blade screwdriver or spring hook (D). 7. Lift the right side to align the flat on the guide shaft with the opening. 8. Slide the shaft through the opening. C D 9. Slide the cover to the right to free the left side, and remove the front cover guide. 4-44 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 137
    4512-220, -230 Installation note: Move the printer so the front hangs over the front edge of the work surface. Anchor the left spring on its rear post and maintain tension on it while snapping the assembly into position on the left side. Use the spring hook from below the printer to anchor the
  • Lexmark E250D | Service Manual - Page 138
    the back of each strip. 3. Remove the strip from inside the tray. Wear strip removal (tray 2) 1. Pull up the strip with the spring hook to free it at the top. 2. Lift the strip out. 4-46 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 139
    Note: When replacing the strip: • Push the strip up with your thumb to make sure that the strip is in place. 4512-220, -230 • Turn the tray over
  • Lexmark E250D | Service Manual - Page 140
    4512-220, -230 4-48 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 141
    5. Locations and connections Locations Front view 4512-220, -230 Rear view Locations and connections 5-1
  • Lexmark E250D | Service Manual - Page 142
    expose the pins. Always disconnect and connect with the printer power off. Otherwise, the values below may not match dc Comments Smart chip Toner level sensor Operator panel Cooling fan LSU drive Front cover open switch Cover closed 1 0 V dc Thermistor 2 Ground 5-2 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 143
    0 V dc Signal 24 V dc Ground Less than 5 V dc 5 V dc Less than V dc 5 V dc 5 V dc 5 V dc 5 V dc Ground 5 V dc Comments LSU (HSYNC) Main motor LVPS/HVPS Manual feed sensor Manual feed solenoids Tray 2 Paper feed and duplex sensors Locations and connections 5-3
  • Lexmark E250D | Service Manual - Page 144
    4512-220, -230 Connectors System board Connector J1 USB Port Pin no. G1 1 2 3 4 G2 Signal Ground USB +5 V dc USB DUSB D+ Ground Ground 5-4 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 145
    printer preventive maintenance. Follow these recommendations to help prevent problems and maintain optimum performance. Safety inspection guide The purpose of this inspection guide original part. Maintenance kits Maintenance kits include: • Fuser (P/N 40X2800, 40X2801, or 40X2802) • Exit guide
  • Lexmark E250D | Service Manual - Page 146
    4512-220, -230 6-2 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 147
    but is not pictured in the illustration. • PP: (Parts Packet) in the parts description column indicates the part is contained in a parts packet. • Model information used in the parts catalog. Machine type and model 4512-220 4512-230 Description Lexmark E250d Lexmark E250dn Parts Catalog 7-1
  • Lexmark E250D | Service Manual - Page 148
    4512-220, -230 Assembly 1: Covers 7-2 Service Manual
  • Lexmark E250D | Service Manual - Page 149
    Assembly 1: Covers AsmIndex 1-1 2 3 4 5 6 7 8 9 10 11 12 12 13 Part number 40X5069 40X5068 40X2839 40X2858 40X2837 40X2843 40X2844 40X2855 40X2854 40X2842 40X2836 40X2852 40X2814 40X2840 Units/ mach 1 1 1 E250d LED bezel cover, E250dn Front access cover assembly 4512-220, -230 Parts Catalog 7-3
  • Lexmark E250D | Service Manual - Page 150
    4512-220, -230 Assembly 2: Electronics 7-4 Service Manual
  • Lexmark E250D | Service Manual - Page 151
    card, E250d 1 LVPS/HVPS card assembly, 110 V 1 LVPS/HVPS card assembly, 220 V 1 LED operator panel assembly, E250d/E250dn 1 1 Manual input sensor assembly 1 1 Pickup and manual feed solenoids 1 1 Main drive gear assembly 1 1 Reversing solenoid 4512-220, -230 Parts Catalog 7-5
  • Lexmark E250D | Service Manual - Page 152
    4512-220, -230 Assembly 3: Frame 7-6 Service Manual
  • Lexmark E250D | Service Manual - Page 153
    1 1 Manual feed clutch kit 1 1 100 V maintenance kit Note: Kit contains the following: Fuser (40X2800, 40X2801, or 40X2802) Exit guide (40X2834) Tray 1 ACM feed tires (56P1820) Transfer roll CBM (40X2822) 1 Field location package assembly 1 2 Tray 2 paper feed tires 4512-220, -230 Parts
  • Lexmark E250D | Service Manual - Page 154
    4512-220, -230 Assembly 4: Options AsmIndex NS NS NS NS NS NS NS NS Part number 40X1364 40X1365 40X1367 40X1368 40X1513 40X1514 40X1512 40X1515 Units/ mach 1 1 1 1 1 1 1 1 Units Traditional Chinese font card assembly Japanese font card assembly Korean font card assembly 7-8 Service Manual
  • Lexmark E250D | Service Manual - Page 155
    NS NS NS NS NS NS NS NS NS NS NS NS NS NS Part number 40X0289 40X0278 40X0288 40X0271 40X0275 40X0274 40X0276 40X0287 40X0279 40X0277 40X0282 40X0270 40X0280 1 1 Units/ FRU Description Power cord, 1.8M (straight)-USA, Canada Power cord, 6 foot (straight)-Europe and others Power cord, 8 foot
  • Lexmark E250D | Service Manual - Page 156
    4512-220, -230 7-10 Service Manual
  • Lexmark E250D | Service Manual - Page 157
    220, -230 E Edge to Edge 3-8 error messages primary light patterns 2-2 service error codes 2-23 user attendance messages 2-2 ESD-sensitive parts 4-1 F fan parts catalog 7-5 removal 4-21 service check 2-40 frame, parts catalog 7-6 fuser parts catalog 7-5 removal 4-22 service check 2-41 H handling ESD
  • Lexmark E250D | Service Manual - Page 158
    4-16 fan 4-21 fuser 4-22 I-2 Lexmark™ E250d and E250dn fuser power cable 4-24 LVPS/HVPS card assembly 4-26 paper exit guide assembly 4-37 paper feed rollers 4-38 printhead 4-40 procedures 4-1 toner level sensor- 4-41 transfer roll 4-42 Reset Factory Defaults 3-4 reset maintenance page counter
  • Lexmark E250D | Service Manual - Page 159
    photoconductor capacity 1-4 print media 1-6 print speed 1-3 toner capacity 1-4 start 2-1 symptom tables 2-37 POST 2-37 printer 2-38 T test pages Print Quality Pages 3-4 tires, removal 4-38 tools 1-8 transfer roll parts catalog 7-7 removal 4-42 service check 2-53 U user attendance messages 2-3 4512-
  • Lexmark E250D | Service Manual - Page 160
    4512-220, -230 I-4 Lexmark™ E250d and E250dn
  • Lexmark E250D | Service Manual - Page 161
    Fuser assembly, 220 V 7-5 Fuser assembly, 100 V 7-5 LSU, E250d/E250dn (printhead 7-5 Controller card, E250dn 7-5 LED operator panel assembly, E250d/E250dn assembly 7-7 Manual feed clutch CBM 7-7 Media level indicator CBM 7-7 Miscellaneous cable assemblies 7-5 Media exit guide assembly 7-7
  • Lexmark E250D | Service Manual - Page 162
    manual feed solenoids 7-5 Reversing solenoid 7-5 110 V maintenance kit 6-1, 7-7 220 V maintenance kit 6-1, 7-7 100 V maintenance kit 6-1, 7-7 Screws, miscellaneous 7-7 Controller card, E250d 7-5 LED bezel cover, E250d ACM tires (RO 7-7 Field location package assembly 7-7 I-6 Service Manual
  • Lexmark E250D | Service Manual - Page 163
  • Lexmark E250D | Service Manual - Page 164
    part that may be causing the defect. For example, the distance between these two marks represents a repeating defect caused by the toner cartridge. Replace Photoconductor Kit (customer replaceable item) Replace Fuser (call for service) Replace Transfer Roller (call for service) Replace Toner
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Lexmark™ E250d and E250dn
4512-220
4512-230
• Table of contents
• Start diagnostics
• Safety and notices
• Trademarks
• Index
Lexmark and Lexmark with diamond design are
trademarks of Lexmark International, Inc., registered
in the United States and/or other countries.
Edition: July 2, 2008