Lexmark Optra SC 1275 Service Manual

Lexmark Optra SC 1275 Manual

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  • Lexmark Optra SC 1275 | Service Manual - Page 1
    Optra™ SC 1275 5040-001 • 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 Optra SC 1275 | Service Manual - Page 2
    First Edition (January 1998) The following paragraph does not apply to any country where such provisions are inconsistent with local law: LEXMARK INTERNATIONAL, INC. PROVIDES THIS PUBLICATION "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  • Lexmark Optra SC 1275 | Service Manual - Page 3
    Cartridge Rack Service Check ...2-38 Printhead Cooling Fan Service Check...2-39 Power Supply Cooling Fan Motor Service Check ...2-39 Suction Fan Motor Service Check ...2-39 AC Power Service Check ...2-40 Marks on Paper Service Check ...2-41 Image Quality Troubleshooting ...2-42 iii Service Manual
  • Lexmark Optra SC 1275 | Service Manual - Page 4
    Service Check ...2-47 Diagnostic Aids ...2-48 Basic Printer Paper Passage Test ...2-48 Operator Menu Disabled ...2-48 Diagnostic Mode...2-48 Diagnostic Menu Group ...2-48 Setting Printer ...3-1 Instructions for Handling the PWBs with MOS ICs...3-1 Precautions for Handling the Drum Cartridge ...3-2
  • Lexmark Optra SC 1275 | Service Manual - Page 5
    Cartridge Rack Removal ...3-16 Mechanical Controller Board Frame Removal...3-19 Paper Size/Cassette Detecting Board (PWB-E) Removal 3-19 Paper Take-Up Removal ...3-19 Suction Assembly Removal...3-25 Suction Fan Motor Removal ...3-27 Locations ...4-1 Parts of the Printer ...4-1 Parts of the Printer
  • Lexmark Optra SC 1275 | Service Manual - Page 6
    Paper Transport ...5-32 Rack ...5-34 Fuser 1 ...5-38 Fuser 2 ...5-40 Fuser/Exit ...5-42 Exit ...5-44 Electrical Parts ...5-46 Second Cassette (Tray 1) ...5-50 Third Cassette (Tray 2) ...5-54 Paper Tray ...5-56 Controller Card ...5-58 Index ...X1 vi
  • Lexmark Optra SC 1275 | Service Manual - Page 7
    vii Service Manual
  • Lexmark Optra SC 1275 | Service Manual - Page 8
    be used instead. Evaluation and verification of operation in conjunction with other products, programs, or services, except those expressly designated by the manufacturer, are the user's responsibility. Laser Notice The printer is certified in the U.S. to conform to the requirements of DHHS 21 CFR
  • Lexmark Optra SC 1275 | Service Manual - Page 9
    Laser Advisory Label Label is inside printerl Class 1 Laser Statement Label Label is on back of printer. ix Service Manual
  • Lexmark Optra SC 1275 | Service Manual - Page 10
    Laser Der Drucker erfüllt gemäß amtlicher Bestätigung der USA die Anforderungen der Bestimmung DHHS (Department of Health and Human Services) 21 CFR Teil J für Laserprodukte der Klasse I (1). In anderen Ländern gilt der Drucker als Laserprodukt der Klasse I, der die Anforderungen der IEC (
  • Lexmark Optra SC 1275 | Service Manual - Page 11
    arseneto de potássio, de 5 milliwatts ,operando numa faixa de comprimento de onda entre 770 e 795 nanómetros. O sistema e a impressora laser foram concebidos de xi Service Manual
  • Lexmark Optra SC 1275 | Service Manual - Page 12
    deze eisen vastgelegd in DHHS 21 CFR Subchapter J, voor andere landen in IEC 825. 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
  • Lexmark Optra SC 1275 | Service Manual - Page 13
    olet alttiina näkymättömälle lasersäteilylle. Älä katso säteeseen. VARNING! Osynlig laserstrålning när denna del är öppnad och spärren är urkopplad. Betrakta ej strålen. xiii Service Manual
  • Lexmark Optra SC 1275 | Service Manual - Page 14
    person utsätts för laserstrålning över Klass I-nivå vid normal användning, underhåll som utförs av användaren eller annan föreskriven serviceåtgärd. Laser-melding Skriveren er godkjent i USA etter kravene i DHHS 21 CFR, underkapittel J, for klasse I (1) laserprodukter, og er i andre land godkjent
  • Lexmark Optra SC 1275 | Service Manual - Page 15
    de classe I durant una operació normal, durant les tasques de manteniment d'usuari ni durant els serveis que satisfacin les condicions prescrites. Japanese Laser Notice xv Service Manual
  • Lexmark Optra SC 1275 | Service Manual - Page 16
    Chinese Laser Notice Korean Laser Notice Notices and Safety Information xvi
  • Lexmark Optra SC 1275 | Service Manual - Page 17
    in conformità a severi standard di sicurezza e per l'utilizzo con componenti Lexmark specifici. Le caratteristiche di sicurezza di alcune parti non sempre sono di immediata comprensione. Lexmark non è responsabile per l'utilizzo di parti di ricambio di altri produttori. xvii Service Manual
  • Lexmark Optra SC 1275 | Service Manual - Page 18
    Funktionen der Bauteile und Optionen sind nicht immer offensichtlich. Sofern Teile eingesetzt werden, die nicht von Lexmark sind, wird von Lexmark keinerlei Verantwortung oder Haftung für dieses Produkt übernommen. Die Wartungsinformationen für dieses Produkt sind ausschließlich für die Verwendung
  • Lexmark Optra SC 1275 | Service Manual - Page 19
    ça na utilização de componentes específicos da Lexmark. As funções de segurança de alguns dos componentes podem não ser sempre óbvias. A Lexmark não é responsável pela utilização de outros personal professional ha d'estar-ne assabentat i prendre les mesures convenients. • • xix Service Manual
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    Notices and Safety Information xx
  • Lexmark Optra SC 1275 | Service Manual - Page 21
    xxi Service Manual
  • Lexmark Optra SC 1275 | Service Manual - Page 22
    1. General Information Maintenance Approach The diagnostic information in this manual leads you to the correct field replaceable unit (FRU) or part. Use the error code charts, symptom index, and service checks to determine the symptom and repair the failure. After you complete the repair, perform
  • Lexmark Optra SC 1275 | Service Manual - Page 23
    Power Supply Nonvolatile Random Access Memory Original Equipment Manufacturer Problem Isolation Charts Picture Element Power-On Reset Power-On Volts direct current Paper Feed Operation • • Paper can be fed into the printer from the Multi-Purpose Tray (150 sheets) or from the Second Cassette Tray
  • Lexmark Optra SC 1275 | Service Manual - Page 24
    Multi Purpose Tray When the paper take-up solenoid 1 (SL3) energizes, the transport motor (M2) drives the paper take-up roller via the paper take-up clutch. The paper take-up roller rotates one revolution. At the same time, the depressing cam rotates and releases the paper lift-up plate to feed the
  • Lexmark Optra SC 1275 | Service Manual - Page 25
    Second Cassette (Tray 1) When paper take-up solenoid 2 (SL7) energizes it rotates the paper take-up roller which feeds the top sheet of paper. Paper empty sensor 2 (PC11) detects paper in the second cassette. Paper near empty sensor 1 (PC10) detects when the number of sheets of paper in the tray
  • Lexmark Optra SC 1275 | Service Manual - Page 26
    Third Cassette Unit (Tray 2 Option) The third cassette is constructed in the same way as the second cassette. General Information 1-5
  • Lexmark Optra SC 1275 | Service Manual - Page 27
    Full Detection The drum cartridge toner full board (PWB-D1), on top of the image transfer belt assembly, LED (LED1) passes through the LED passing window, is reflected by a mirror in the drum cartridge, and then received by the photo sensor (PT1). The amount of this light determines whether the drum
  • Lexmark Optra SC 1275 | Service Manual - Page 28
    Synchronizing Rollers The synchronizing rollers adjust any skewed paper transported from the paper take-up/feed section. The rollers match the leading edge of the image on the image transfer belt with the leading edge of the paper. The paper synchronizing sensor (PC1) detects when the leading edge
  • Lexmark Optra SC 1275 | Service Manual - Page 29
    Paper Type Detection The overhead projection (OHP) sheet detect board (PWB-D2), consisting of an LED (LED1) and a photo sensor (PT1), determines whether transparencies or plain paper is being fed through the machine. When plain paper is feeding, the light from the LED reflects off the surface of
  • Lexmark Optra SC 1275 | Service Manual - Page 30
    When a sheet of OHP transparencies is feeding, the light from the LED passes through and PT1 receives no light. General Information 1-9
  • Lexmark Optra SC 1275 | Service Manual - Page 31
    Detection Toner Empty Detection Light from the toner empty detection LED (LED1) on the toner empty/toner cartridge detecting board (PWB-B) is reflected by a mirror in the toner cartridge and received by photo sensor (PT1). The amount of light received by the photo sensor determines whether the
  • Lexmark Optra SC 1275 | Service Manual - Page 32
    detection LED (LED2) on the toner empty/toner cartridge detecting board (PWB-B) is reflected by the toner cartridge surface to the photo sensor (PT1). The toner cartridge is detected during warm up. AIDC Sensor and Erase Lamp Automatic Image Density Control (AIDC) The AIDC sensor detects the
  • Lexmark Optra SC 1275 | Service Manual - Page 33
    AIDC detection is done for each Color Toner Cartridge after the developing rack position initializes. 1-12
  • Lexmark Optra SC 1275 | Service Manual - Page 34
    Erase Lamp Nineteen LEDs are placed in a row on the AIDC/Erase Lamp Board (PWB-C). Following developing, the surface of the PC Drum is exposed to light from these LEDs to neutralize negative the charge on the areas to which no toner has been attracted. General Information 1-13
  • Lexmark Optra SC 1275 | Service Manual - Page 35
    1-14
  • Lexmark Optra SC 1275 | Service Manual - Page 36
    Operator Error Message Table, or the Service Error Message Table and take the service check is connector, board, and pin. The board uses only a letter for an identifier. For example, connector CN8A-3; CN8 = connector, A = board, -3 = the pin. Start Initial Check Before you start troubleshooting
  • Lexmark Optra SC 1275 | Service Manual - Page 37
    . Status messages give information about the current state of the printer. Attendance messages indicate printer errors that the operator must resolve. Service messages indicate printer problems that require servicing. Printer status is shown on the first line of the display. Additional information
  • Lexmark Optra SC 1275 | Service Manual - Page 38
    Ready is displayed and no more data is processed from the host computer. • Press Go to return to Ready. Ready Hex The printer is ready and Hex Trace mode is active. • Press to take the printer out of Ready and to enter the primary menu selections. • Press Stop to take the
  • Lexmark Optra SC 1275 | Service Manual - Page 39
    data is processed from the host computer. • Press Go to return to Ready. Or, to reset the printer: • Press > to access the Busy menu. • Select Reset Printer. Engine Warming The printer is performing the necessary action to warm the fuser mechanism. No button actions are possible while this
  • Lexmark Optra SC 1275 | Service Manual - Page 40
    or if SmartSwitch is disabled. No button actions are possible while this message is displayed. Power Saver Printing Menu Settings The printer is in Power Saver mode. The printer is processing or printing a list of current menu settings because Print Menu Setting was selected from the Tests Menu
  • Lexmark Optra SC 1275 | Service Manual - Page 41
    display changes to the Busy message as the pages print. • Press Stop to take the printer offline. 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. Or, to reset
  • Lexmark Optra SC 1275 | Service Manual - Page 42
    when Stop is pressed during a print job. Press Go to take the printer out of the not ready state. Or, to reset the printer: • Press to access the Busy menu. • Select Reset Printer. Resetting the Printer The printer is deleting any print jobs in process and restoring all settings to user
  • Lexmark Optra SC 1275 | Service Manual - Page 43
    at the same time, the Programming Flash message is displayed. Menus Disabled The printer menus have been disabled. This occurs when is pressed while the printer is Ready and Menu Lockout is active. The printer display shows this message for one second and then returns to the Ready message
  • Lexmark Optra SC 1275 | Service Manual - Page 44
    Status Message Files Will Be Lost. Go or Stop? Action This message is displayed when the Job Buffer Size is changed in the Setup Menu. The message indicates that the disk is about to be formatted to create the new job buffer partition. All disk files will be lost if this action continues. • Press
  • Lexmark Optra SC 1275 | Service Manual - Page 45
    Supplies Status Messages" on page 2-11. Parallel Serial x The printer is locked to the printer standard parallel port. x is 1, 2, or 3 and represents the serial 3 and represents the infrared port attached to option connector x. The printer is locked to this link. Maintenance is required for the assembly
  • Lexmark Optra SC 1275 | Service Manual - Page 46
    20x Paper Jam 24x 250 Press Go to return to printing. If you still have the problem, clear the entire paper path of paper and go to the "Paper Jam Service Check" on page 2-35. Action The printer has detected a paper jam. The second line shows where the paper jam may be. The
  • Lexmark Optra SC 1275 | Service Manual - Page 47
    . If you still have the error, check the contacts on the toner cartridge and the toner cartridge rack. Clean or replace as necessary. If this does not correct the problem, replace the toner empty/toner cartridge detecting board (PWB-B) and the mechanical controller board if necessary. The media
  • Lexmark Optra SC 1275 | Service Manual - Page 48
    is displayed, either install additional memory or set each link buffer to the Auto value. • After you set all link buffers to Auto, exit the printer menus to activate link buffer changes. • When Ready is displayed, enable Resource Save in the Setup Menu and modify the link buffers again. • Press Go
  • Lexmark Optra SC 1275 | Service Manual - Page 49
    access the Busy menu. • Select Reset Printer. 51 Defective Flash The printer detects a defective flash during power on, or during format and write to flash operations. Press Go to clear the message. Flash operations are not allowed until the problem is resolved. Remove the defective flash memory
  • Lexmark Optra SC 1275 | Service Manual - Page 50
    Attendance Message 53 Unformatted Flash Action The printer detected an unformatted flash memory card during the power on process. Flash operations are not allowed until the flash is formatted. Try the following: • Format
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    Go to clear the message and continue printing the job. The print job may not print correctly. • To reset the printer: • Press to access the Busy menu. • Select Reset Printer. 54 Parallel Error An IEEE 1284 protocol error has been detected on the parallel host interface. This error may be
  • Lexmark Optra SC 1275 | Service Manual - Page 52
    , but the parallel port is disabled. When the error is displayed, the reporting of other errors is suppressed until the menus are entered or the printer is reset. Make sure Parallel Buffer is not set to Disabled in the Parallel Menu. • Press Go to clear the message. The
  • Lexmark Optra SC 1275 | Service Manual - Page 53
    more than one Hard Disk Option. The Hard Disk Option can be installed only in connector 3. Turn off the printer and remove the extra Hard Disk Option. 61 Defective Disk The printer detects a defective disk during power on, or during disk format and write operations. Press Go to clear the message
  • Lexmark Optra SC 1275 | Service Manual - Page 54
    the wrong connector. The Hard Disk Option can be installed only in connector 3. 1. Power off the printer. 2. Remove the incorrectly installed disk. 3. Turn on the printer. Print Jobs on Disk? The printer asks for confirmation to print the waiting jobs, which were previously spooled to disk. This
  • Lexmark Optra SC 1275 | Service Manual - Page 55
    Toner Bottle Missing The waste toner bottle is not installed or there is a problem with the toner collecting box detection switch (S6). Open the top door, when the top door is closed. If it does not, go to the "Sensor Service Check" on page 2-47. 82 Waste Toner Bottle Full Open the top door,
  • Lexmark Optra SC 1275 | Service Manual - Page 56
    (PC3) could be failing. Go to the "Sensor Service Check" on page 2-47. 84 PC Missing The cartridge connector. • Be sure connector CN6 on the mechanical controller board is plugged in correctly. • If you still have the problem printer operations until you can get a replacement unit
  • Lexmark Optra SC 1275 | Service Manual - Page 57
    Attendance Message 84 PC Exhausted Action The photoconductor unit must be replaced to continue operating the printer. Open the top door and remove the photoconductor unit. Install the new photoconductor unit and close the top door. The customer replaces this part at
  • Lexmark Optra SC 1275 | Service Manual - Page 58
    that was set in the Paper Size or Paper Type menu items. The display shows the following information: On line 1, indicates where the printer expects the printed material to be. On line 2, one of the following items is displayed: Custom Type 1 through 3 is a userdefined name
  • Lexmark Optra SC 1275 | Service Manual - Page 59
    The size name is truncated to 6 characters. • Load the requested size and type in the source. • If the source has auto-size sensing, the printer automatically clears the message and continues processing the job. If the source does not have autosize sensing, press Go after loading the requested size
  • Lexmark Optra SC 1275 | Service Manual - Page 60
    Action The printer is requesting paper or other printer material to be fed manually from the Multipurpose Feeder. The display shows the following information: On line 2: Custom Type 1 through 3 is a userdefined name that was created with
  • Lexmark Optra SC 1275 | Service Manual - Page 61
    Action Unrecoverable software error. Refer to the operator manual. Go to the "Transport Motor Service Check" on page 2-34. Go to the "Developing Motor Service Check" on page 2-34. Go to the "Toner Cartridge Rack Service Check" on page 2-38. The printer fails to completely transfer the image to the
  • Lexmark Optra SC 1275 | Service Manual - Page 62
    Error Action Go to the "Power Supply Cooling Fan Motor Service Check" on page 2-39. Go to the "Suction Fan Motor Service Check" on page 2-39. Go to the "Printhead Cooling Fan Service Check" on page 2-39. Go to the "Fuser Service Check" on page 2-33. Check the printhead connectors. Replace the
  • Lexmark Optra SC 1275 | Service Manual - Page 63
    the download emulation and RIP code are incompatible. Contact Technical Support for assistance. 97X INA Failure Be sure the controller cannot communicate with it. The X after the card indicates which one has the problem. Network card 1 always refers to the INA in the bottom slot and Network
  • Lexmark Optra SC 1275 | Service Manual - Page 64
    Service Check" on page 2-47. Replace the OHP sheet detection board (PWB-D2). The printer fails to completely transfer the image to the paper or does not transfer it at all. The image transfer roll does not lift when paper is passing over it. Go to the "Sensor Service problem, Sensor Service
  • Lexmark Optra SC 1275 | Service Manual - Page 65
    sensor for correct operation and replace any damaged parts. Go to the "Toner Cartridge Rack Service Check" on page 2-38. Go to the "Paper Jam Service Check" on page 2-35. Go to the "Paper Jam Service Check" on page 2-35. Go to the "Paper Jam Service Check" on page 2-35. Go to the "Developing Motor
  • Lexmark Optra SC 1275 | Service Manual - Page 66
    black lines and bands Go to the "Image Quality Troubleshooting" on page 2-42. Evenly spaced marks on the paper, or a single mark in the same place on every page. Paper feed problems in the image transfer roll area Go to the "Marks on Paper Service Check" on page 41. Go to the "Paper
  • Lexmark Optra SC 1275 | Service Manual - Page 67
    Symptom Paper feed problems in the fuser and delivery area. Paper jam message will not clear. Poor fusing Toner scatter on front or back of paper Action Go to the "Paper Jam Service Check" on page 2-35. Go to the "Image Quality Troubleshooting" on page 2-42. Check the following: • Excessive toner
  • Lexmark Optra SC 1275 | Service Manual - Page 68
    Checks Fuser Service Check FRU 1 • Heater Lamp (H1) • Thermostat (S4) • Power Unit (PU1) • Mechanical Controller Board (PWB-A) Action Be sure the heater lamp (H1) lights up when the
  • Lexmark Optra SC 1275 | Service Manual - Page 69
    does not, replace the mechanical controller board. 2 Mechanical Controller Board (PWBA) • Developer Motor (M1) • Mechanical Controller Board (PWB-A) 3 Transport Motor Service Check FRU 1 Rollers, Gears Action If the transport motor (M2) starts turning when a print cycle is initiated, check the
  • Lexmark Optra SC 1275 | Service Manual - Page 70
    belt position sensor (PC7). If it operates correctly, replace the mechanical controller board. If it does not, replace the transfer belt assembly. 2 Paper Jam Service Check If the machine is turned on and error code 200, 201, or 202 is displayed, do the following before going on to the FRU
  • Lexmark Optra SC 1275 | Service Manual - Page 71
    Solenoid (SL4) • Take-up Roller • Transport Roller • Paper Takeup Clutch • Transport Take-up Clutch • Depressing Cam • Separating Pad Action Go to the "Sensor Service Check" on page 2-47 and check the synchronizing/timing roll paper sensor. If it is good, return to this check and continue. 2 Check
  • Lexmark Optra SC 1275 | Service Manual - Page 72
    • Mechanical Controller Board • Image Transfer Roller • Image Transfer Solenoid • Image Transfer Sensor (PC2) Transport Belts Fuser Assembly Action Go to the "Sensor Service Check" on page 2-47 and check the fuser sensor (PC9) and actuator. If it is working correctly, return to this check. Check the
  • Lexmark Optra SC 1275 | Service Manual - Page 73
    the fuser but not the printer. FRU 1 Fuser Sensor (PC9) Paper Exit Sensor (PC8) Fuser Assembly Action Go to the "Sensor Service Check" on page 2-47 you still have the problem, replace the mechanical controller board. 2 Check the latch for wear or damage. 3 4 If the toner cartridge rack does not
  • Lexmark Optra SC 1275 | Service Manual - Page 74
    low voltage power supply. If this does not correct the failure, replace the fan motor. If you still have the problem, replace the mechanical controller board. Suction Fan Motor Service Check FRU 1 • Suction Fan Motor (M7) • Mechanical Controller Board (PWB-A) Action See if the suction fan motor (M7
  • Lexmark Optra SC 1275 | Service Manual - Page 75
    AC Power Service Check FRU 1 Voltage Action Be sure the switch is on and the power cord is firmly plugged into the printer. Be sure the correct voltage is present at the outlet. Check the power cord for continuity. The power supply fuses may be blown. Unplug the
  • Lexmark Optra SC 1275 | Service Manual - Page 76
    Marks on Paper Service Check If you have evenly spaced marks on the paper, measure the distance between the marks and locate the symptom below. Check the assembly for dirt or damage and clean as necessary. Run a test print to verify the problem has been corrected. The indicated assemblies are
  • Lexmark Optra SC 1275 | Service Manual - Page 77
    Image Quality Troubleshooting Locate your symptom below, note the possible causes, and take the appropriate transfer Poor paper image transfer Replace the high voltage assembly (HV1). Replace the PC drum cartridge. Replace the image transfer belt asm. Replace the image transfer roller asm. This is
  • Lexmark Optra SC 1275 | Service Manual - Page 78
    . Replace the printhead. Replace the mechanical controller board (PWB-A). Gently rock the toner cartridge to distribute the toner evenly. If you still have the problem, replace the toner cartridge. This is a customer replaceable part at prescribed intervals. Poor development Diagnostic Information
  • Lexmark Optra SC 1275 | Service Manual - Page 79
    has been replaced recently, check the contacts on the PC drum cartridge connector and all ground pins on the PC cartridge assembly. Possible Cause Action Incorrect laser exposure Replace the printhead. Replace the mechanical controller board (PWB-A). Replace the high voltage assembly (HV1
  • Lexmark Optra SC 1275 | Service Manual - Page 80
    . This is a customer replaceable part at prescribed intervals. Replace the PC drum cartridge.This is a customer replaceable part at prescribed intervals. Replace the PC drum cartridge.This is a customer replaceable part at prescribed intervals. Replace the fuser. This is a customer replaceable
  • Lexmark Optra SC 1275 | Service Manual - Page 81
    roller. Replace the fuser. (Customer replaces these parts.) Incorrect Color Image Registration Possible Cause Action Incorrect toner cartridge setting Defective intermediate image transfer Reset the toner cartridge securely. Replace the image transfer belt assembly (customer replaces this). 2-46
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    (HS1). Replace the mechanical controller board (PWB-A). Defective paper image transfer Sensor Service Check 1. When a paper jam or malfunction occurs, identify the sensor that is probably responsible for the problem (see "Electrical Components" on page 4-12). 2. Enter the sensor check mode in
  • Lexmark Optra SC 1275 | Service Manual - Page 83
    the multipurpose tray, 2nd cassette, or 3rd cassette with paper and turn on the power switch. • If the paper is properly fed out of the printer, the controller card, or a component on the controller card such as the memory SIMM, code SIMM, riser card, or other option is responsible for the
  • Lexmark Optra SC 1275 | Service Manual - Page 84
    Top-Level Menu Intermediate Menu, Printer Setting, or Printer Operation PRINT TESTS Tray 1 Tray 2 (if installed) MP Tray Clean Engine Sensor Test LCD Test Button Count Perm Page Count DEVICE TESTS (Only displayed if a flash or disk option is installed.) PRINTER SETUP Diagnostic Information 2-49
  • Lexmark Optra SC 1275 | Service Manual - Page 85
    Operation Maintenance Menu 80 Maint Cnt 81 Main Cnt Reset 80 Maint Reset 81 Maint Display Log Clear Log Error Log EXIT DIAGNOSTICS Setting Printer Registration When you first enter the Registration menu, the Top margin sign/ value pair flashes. This indicates it is the margin value being changed
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    second transfer mechanism. The value list is YES and NO. To cancel the test, press Return or Stop. LCD Hardware Test This test causes the printer to continually execute the LCD display test. To cancel the test, press Return or Stop. Button Test This test verifies the operation of each button
  • Lexmark Optra SC 1275 | Service Manual - Page 87
    ). Initially 00000 displays for #####. The maximum fail count is 99,999. The power indicator blinks indicating the memory test is in progress. The printer continually runs the same test until canceled from the control panel by pressing Return or Stop. Each time the test finishes, the screen is
  • Lexmark Optra SC 1275 | Service Manual - Page 88
    initiate the Parallel Wrap Test. The following screen displays and the printer begins testing the parallel hardware for the first time: Parallel Wrap power indicator blinks indicating the memory test is in progress. The printer continually runs the same test until canceled from the control panel by
  • Lexmark Optra SC 1275 | Service Manual - Page 89
    ). Initially 00000 displays for #####. The maximum fail count is 99,999. The power indicator blinks indicating the memory test is in progress. The printer continually runs the same test until canceled from the control panel by pressing Return or Stop. Each time the test finishes, the screen is
  • Lexmark Optra SC 1275 | Service Manual - Page 90
    is displayed, you can manually actuate each of the supported by which sources. Source Tray 1 Tray 2 Multipurpose Feeder Empty Sensor Yes Yes Yes Low Sensor Yes Yes No To exit the sensor test, press Return or Stop. Size Sensing Sensor Test This test checks the state of the sensors in the printer
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    , press Return or Stop. Base Sensor Test This test determines whether or not the sensors located inside the printer are working correctly. Once this screen is displayed, you can open the doors and manually actuate each of the sensors. When the sensor is closed, CL is displayed. When the sensor is
  • Lexmark Optra SC 1275 | Service Manual - Page 92
    the disk. Each phase of the test on a 540 MB hard disk takes approximately 14 minutes to complete. This test leaves the disk unformatted. The servicer or user must reformat the disk using the Format Disk menu operation. Diagnostic Information 2-57
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    Page Count Use this menu to reset the page count whenever you replace the engine card. The engine card contains the printer's NVRAM memory. When you select Page Count from the PRINTER SETUP menu, the current page count displays as follows: Page Count =1234567* The left-most digit (1 in this example
  • Lexmark Optra SC 1275 | Service Manual - Page 94
    displayed on the control panel. Clearing the Error Log To clear the error log, select the Clear Log operation from the ERROR LOG menu. The printer displays the following message: Clear Log =Yes Select Yes to confirm that you really want to clear the log. Select No to exit the Clear
  • Lexmark Optra SC 1275 | Service Manual - Page 95
    Print Quality Test Page 2-60
  • Lexmark Optra SC 1275 | Service Manual - Page 96
    Print Quality Test Page Diagnostic Information 2-61
  • Lexmark Optra SC 1275 | Service Manual - Page 97
    2-62
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    service the printer: • • • Be sure to unplug the printer from the outlet before attempting to service the printer. To reassemble the printer the screw with a toothed washer in the right position at reassembly. Instructions for Handling the PWBs with MOS ICs The following precautions must be
  • Lexmark Optra SC 1275 | Service Manual - Page 99
    . The storage temperature is in the range between -20°C and +40°C. Handling: • • • The PC drum in the drum cartridge exhibits greatest light fatigue after being exposed to strong light over an extended period of time. Never, therefore, expose it to direct sunlight. Use care
  • Lexmark Optra SC 1275 | Service Manual - Page 100
    Precautions for Handling the Laser Equipment • • • When a service job needs to be performed in the laser beam path, such as when working around the printhead and the drum cartridge, be sure to turn the printer off first. A highly reflective tool can be dangerous if it is brought into the laser
  • Lexmark Optra SC 1275 | Service Manual - Page 101
    1. Remove the outer covers and shield plate. 2. Adjust VR1 so that the registration gap is 4 mm. Turn VR1 on the mechanical controller board in the + direction to increase the gap and turn it in the opposite direction to make the gap smaller. 3-4
  • Lexmark Optra SC 1275 | Service Manual - Page 102
    are 4.5 mm between the solenoid plunger and the solenoid when the lever is detented into the toner cartridge rack. Removal Procedures Outer Cover Removals 1. 2. 3. 4. Slide out the Second Cassette (tray 1). insert the cover protrusions into the cutouts in the printer frame. Repair Information 3-5
  • Lexmark Optra SC 1275 | Service Manual - Page 103
    Image Transfer Roller Removal 1. Open the Upper Unit. 2. Remove the Image Transfer Roller Unit. Drum Cartridge Removal 1. Open the Upper Unit. 2. Remove the Drum Cartridge. 3-6
  • Lexmark Optra SC 1275 | Service Manual - Page 104
    Bottle Removal 1. Open the Upper Unit. 2. Remove the waste toner bottle. Image Transfer Belt Removal 1. 2. 3. 4. Open the Upper Unit. Remove the Drum Cartridge. Remove the waste toner bottle. Remove the Image Transfer Belt Unit. Be careful to not rotate the image transfer belt clockwise, as viewed
  • Lexmark Optra SC 1275 | Service Manual - Page 105
    Fuser Removal 1. Open the rear cover. 2. Slide out the fuser. 3. Remove the fuser (2 thumb screws). 3-8
  • Lexmark Optra SC 1275 | Service Manual - Page 106
    Oil Coating Roller Removal 1. 2. 3. 4. Open the rear cover. Slide out the fuser. Remove the fuser (2 screws). Remove the oil coating roller (2 green knobs). Repair Information 3-9
  • Lexmark Optra SC 1275 | Service Manual - Page 107
    Heater Lamp Removal Do not touch the lamp surface with your bare hands. 1. 2. 3. 4. 5. Open the rear cover. Slide out the fuser. Remove the fuser (2 screws). Remove the oil coating roller (2 screws). Remove the misfeed clearing knob (1 screw). 6. Remove the heater lamp covers (4 screws). 3-10
  • Lexmark Optra SC 1275 | Service Manual - Page 108
    7. Pull the heater lamp out of the lamp holder from the misfeed clearing knob side. When you reinstall the lamp, position the voltage indication toward the misfeed clearing knob side. Printhead Removal 1. Remove the top cover. 2. Remove the printhead (2 connectors, 5 screws). Repair Information
  • Lexmark Optra SC 1275 | Service Manual - Page 109
    Paper Exit Removal 1. Remove the top cover and rear upper cover. 2. Slide out the fuser. 3. Remove the paper exit assembly (2 connectors, 4 screws). High Voltage (HV1) / Sub High Voltage Board (PWB-F) Removal 1. Remove the paper exit assembly. 2. Remove the HV1 (9 connectors, 5 screws). 3. Remove
  • Lexmark Optra SC 1275 | Service Manual - Page 110
    Shield Plate Removal 1. Remove the top cover, operator panel cover, rear upper cover, front right cover, and right cover. 2. Remove the shield plate (14 screws). Power Supply Removal 1. Remove the shield plate. 2. Remove the PU1 (5 connectors, 6 screws). Repair Information 3-13
  • Lexmark Optra SC 1275 | Service Manual - Page 111
    Mechanical Control Board Removal 1. Remove the shield plate. 2. Remove the mechanical controller board (22 connectors, 6 screws). Power Supply Frame Removal 1. Remove the shield plate. (Refer to section 3-12.) 2. Remove the power unit frame (7 screws). 3-14
  • Lexmark Optra SC 1275 | Service Manual - Page 112
    Printhead Frame Removal 1. Remove the outer covers. 2. Remove the power unit frame. 3. Remove the printhead unit cooling fan motor (1 connector, 2 screws). 4. Remove the printhead unit frame (2 connectors, 8 screws). Repair Information 3-15
  • Lexmark Optra SC 1275 | Service Manual - Page 113
    Toner Empty / Toner Cartridge Detecting Board (PWBB) Removal 1. Remove the power unit frame. 2. Remove the toner empty / toner cartridge detecting board (1 connector, 3 screws). Toner Cartridge Rack Removal 1. Remove the printhead frame. 2. Remove the rack cover (2 screws). 3-16
  • Lexmark Optra SC 1275 | Service Manual - Page 114
    3. Remove the dial assembly (1 washer, 1 bushing, 3 screws). 4. Remove the left rack guide (5 connectors, 5 screws). Repair Information 3-17
  • Lexmark Optra SC 1275 | Service Manual - Page 115
    5. Remove the toner empty / toner cartridge detecting board. 6. Remove the right rack guide (1 screw). 7. Remove the toner cartridge rack. 3-18
  • Lexmark Optra SC 1275 | Service Manual - Page 116
    Mechanical Controller Board Frame Removal 1. Remove the Shield Plate. 2. Remove all the connectors from PWB-A (22 connectors). 3. Remove the PWB-A frame (4 screws). Paper Size/Cassette Detecting Board (PWB-E) Removal 1. Remove the power unit frame. 2. Remove the PWB-A frame. 3. Remove the PWB-E
  • Lexmark Optra SC 1275 | Service Manual - Page 117
    2. Disconnect the three connectors. Remove the two ground wires and the air pipe. 3. Remove the toner collecting box holder (2 screws). 4. Remove the upper unit left support plate (1 screw). 3-20
  • Lexmark Optra SC 1275 | Service Manual - Page 118
    5. Hold up the lever in the direction of the arrow, and release the hook of the spring. 6. Remove the upper unit left guide (3 screws). 7. Remove the one screw. Repair Information 3-21
  • Lexmark Optra SC 1275 | Service Manual - Page 119
    8. Remove the E-ring. 9. Remove the upper unit right guide (3 screws). 3-22
  • Lexmark Optra SC 1275 | Service Manual - Page 120
    10. Remove the upper unit. 11. Remove the upper unit right support plate. Repair Information 3-23
  • Lexmark Optra SC 1275 | Service Manual - Page 121
    12. Remove the multipurpose tray. 13. Remove the paper take-up unit (1 connector, 4 screws). 3-24
  • Lexmark Optra SC 1275 | Service Manual - Page 122
    Suction Assembly Removal 1. 2. 3. 4. 5. 6. Remove the image transfer roller. Remove the paper exit. Remove the fuser. Remove all connectors from HV1 (9 connectors). Remove all connectors from PWB-F (1 connector). Remove the high voltage unit frame (8 screws). 7. Remove the two screws of the suction
  • Lexmark Optra SC 1275 | Service Manual - Page 123
    8. Move the bushing of the suction assembly to the position shown. 9. Remove the suction assembly (1 connector). 3-26
  • Lexmark Optra SC 1275 | Service Manual - Page 124
    Suction Fan Motor Removal 1. Remove the suction assembly. 2. Remove the suction fan motor (2 screws). Repair Information 3-27
  • Lexmark Optra SC 1275 | Service Manual - Page 125
    3-28
  • Lexmark Optra SC 1275 | Service Manual - Page 126
    4. Locations Parts of the Printer 1. Paper Exit Tray 2. Power Switch 3. Top Door Latch 4. Front Cover 5. Control Panel 6. Multipurpose Tray 7. 250-Sheet Second Cassette (Tray 1) 8. 250-Sheet Third Cassette (Tray 2 Option) 9. 250-Sheet Third Cassette Assembly (Optional 2nd Drawer) Locations 4-1
  • Lexmark Optra SC 1275 | Service Manual - Page 127
    Parts of the Printer 10. Rear Cover Release Lever 11. Rear Cover 12. Interface Connector 13. Power Cord Socket 14. Toner Cartridge (1 of 4) 15. Image Transfer Belt Assembly 16. Image Transfer Roller Assembly 17. Photoconductor Cartridge 18. Waste Toner Bottle 19. Fuser 20. Oil Coating Roller
  • Lexmark Optra SC 1275 | Service Manual - Page 128
    Parts of the Printer Locations 4-3
  • Lexmark Optra SC 1275 | Service Manual - Page 129
    Parts of the Printer 4-4
  • Lexmark Optra SC 1275 | Service Manual - Page 130
    Roller Image Transfer Belt Unit Image Transfer Belt Drum Cartridge Toner Full Sensor Board (PWB-D1) Drum Cartridge PC Drum Rotating Charge Brush Sleeve Roller Toner Cartridge Toner Cartridge Rack Printhead Toner Empty/Toner Cartridge Detecting Board (PWB-B) Paper Exit Sensor (PC8) High Voltage
  • Lexmark Optra SC 1275 | Service Manual - Page 131
    Printing Process 4-6
  • Lexmark Optra SC 1275 | Service Manual - Page 132
    S3 S4 Power Switch Interlock Switch 1 Interlock Switch 2 Thermostat Connector Function Turns the printer on or off Detects the opening and closing of front cover. Detects the opening has been attached to the fuser. PC4 Detects if the toner cartridge rack is at the home position. Locations 4-7
  • Lexmark Optra SC 1275 | Service Manual - Page 133
    Name PC5 Paper Empty Sensor 1 Toner Waste Bottle Full Sensor Image Transfer Belt Position Sensor Paper Exit Sensor Connector CN13A-3 empty detected: H CN20A-2 toner full detected: H CN6A-14 standard position detected: H CN8A-3 paper detected: H CN9A-5 paper detected: L CN12A-7 near empty detected:
  • Lexmark Optra SC 1275 | Service Manual - Page 134
    Name PC14 Paper Empty Sensor 3 Fuser Connector CN18A-3 empty detected: L Function Detects when there are approximately 50 sheets left in the 3rd cassette. (Traty2) Detects if the fuser is plugged in. Locations 4-9
  • Lexmark Optra SC 1275 | Service Manual - Page 135
    Gears and Rollers 4-10
  • Lexmark Optra SC 1275 | Service Manual - Page 136
    Gears and Rollers Locations 4-11
  • Lexmark Optra SC 1275 | Service Manual - Page 137
    Electrical Components 4-12
  • Lexmark Optra SC 1275 | Service Manual - Page 138
    M2 M3 M6 M7 SL1 SL2 SL3 SL4 SL5 SL6 SL7 SL8 S1 S2 S3 S4 S5 PC1 Name Mechanical Control Board Toner Empty/Toner Cartridge Detecting Board 2nd Paper Size/Cassette Detecting Board (Tray 1) 3rd Paper Size/Cassette Detecting Board (Tray 2) Register Board Power Unit Developing Motor Transport Motor Rack
  • Lexmark Optra SC 1275 | Service Manual - Page 139
    Electrical Components 4-14
  • Lexmark Optra SC 1275 | Service Manual - Page 140
    Symbol PC2 PC4 PC9 PC10 PC11 PC12 PC13 PC14 H1 TH1 TH2 Name Image Transfer Roller Position Sensor Rack Home Position Sensor Fusing Sensor Paper Near Empty Sensor 1 (Tray 1) Paper Empty Sensor 2 (Tray 1) Rack Lever Sensor Paper Near Empty Sensor 2 (Tray 2) Paper Empty Sensor 3 (Tray 2) Heater Lamp
  • Lexmark Optra SC 1275 | Service Manual - Page 141
    Electrical Components Symbol PWB-C PWB-D1 PWB-D2 PWB-F HV1 M5 S6 PC3 Name AIDC/Erase Board Drum Cartridge Toner Full Sensor Board OHP Sheet Detect Board Sub High Voltage Board High Voltage Unit P/H Cooling Fan Motor Waste Toner Collecting Bottle Detecting Switch Oil
  • Lexmark Optra SC 1275 | Service Manual - Page 142
    Electrical Components Symbol PC5 PC6 PC7 PC8 HS1 Name Paper Empty Sensor 1 Toner Waste Bottle Full Sensor Image Transfer Belt Position Sensor Paper Exit Sensor Temperature/Humidity Sensor Locations 4-17
  • Lexmark Optra SC 1275 | Service Manual - Page 143
    Connectors 4-18
  • Lexmark Optra SC 1275 | Service Manual - Page 144
    Printed Circuit Boards PWB-A Locations 4-19
  • Lexmark Optra SC 1275 | Service Manual - Page 145
    HV 1 PU1 PWB-E 4-20
  • Lexmark Optra SC 1275 | Service Manual - Page 146
    PWB-F HS1 PWB-B Locations 4-21
  • Lexmark Optra SC 1275 | Service Manual - Page 147
    4-22
  • Lexmark Optra SC 1275 | Service Manual - Page 148
    5. Parts Catalog How to Use This Parts Catalog • SIMILAR ASSEMBLIES: If two assemblies contain a majority of identical parts, they are broken down on the same list. Common parts are shown by one index number. Parts peculiar to one or the other of the assemblies are listed separately and identified
  • Lexmark Optra SC 1275 | Service Manual - Page 149
    Assembly 1: Housing 5-2
  • Lexmark Optra SC 1275 | Service Manual - Page 150
    Lock Lever Rear Cover Stopper Cover Holder Left Cover Handle, Front Handle, Rear Left Cover, Front Tension Spring Lid, Left Cover Guide, Left Guide, Right Guide Collar Lifting Plate Pad Gear, 14T Actuator (PC5) Sheet Bracket, Photo Interrupter Stopper Photo Interrupter (PC5) Harness Cover Base, Take
  • Lexmark Optra SC 1275 | Service Manual - Page 151
    Assembly 1: Housing (Cont) 5-4
  • Lexmark Optra SC 1275 | Service Manual - Page 152
    Ref 1-38 39 40 41 42 43 44 45 46 Part Number 12C0079 12C0080 12C0081 12C0082 12C0083 12C0084 12C0085 12C0086 12C0087 12C0920 12C0890 12C0875 Units 2 1 1 1 1 1 1 2 1 1 1 1 Description Stud Tray Lid Torsion Spring Right Cover Front Cover Top Cover Holder, Roll Label, T/C Setting Parts Packet 1,
  • Lexmark Optra SC 1275 | Service Manual - Page 153
    Assembly 2: Frames 1 5-6
  • Lexmark Optra SC 1275 | Service Manual - Page 154
    1 1 2 1 Description Right Frame Bracket Bracket Lever Tension Spring Bushing Lock Lever, Rack Base Frame Washer Lever Plate Spring Torsion Spring Guide Holder Shaft Lock Release Lever Label Left Frame Rubber Foot Holder Board (HS1) Harness Bushing Shoulder Screw Cover Torsion Spring Bracket Switch
  • Lexmark Optra SC 1275 | Service Manual - Page 155
    Assembly 2: Frames 1 (Cont) 5-8
  • Lexmark Optra SC 1275 | Service Manual - Page 156
    12C0804 12C0920 12C0890 12C0875 Units 1 2 1 1 1 1 1 2 2 1 1 1 1 1 1 2 1 1 1 1 1 Description Holder Shoulder Screw Torsion Spring Lever Axle Edge Cover Axle Edge Cover Guide Rail Shield Plate Bracket Panel Cover, Lower Panel Cover Mount Photo Interrupter, (PC2) Polyester Film Operator Panel Labels
  • Lexmark Optra SC 1275 | Service Manual - Page 157
    Assembly 3: Frames 2 5-10
  • Lexmark Optra SC 1275 | Service Manual - Page 158
    Torsion Spring Torsion Spring Torsion Spring Lever Lever Left Frame Lock Lever Ground Plate Plate Spring Holder Axle Bracket Lever Torsion Spring Lever Reinforce Plate Guide Cover PW Board D, (PWB-D2) Holder Harness Holder Terminal Parts Catalog 5-11
  • Lexmark Optra SC 1275 | Service Manual - Page 159
    Assembly 3: Frames 2, (Cont) 5-12
  • Lexmark Optra SC 1275 | Service Manual - Page 160
    Ref 3-39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 Part Number 12C0167 12C0168 12C0169 12C0170 12C0171 12C0172 12C0173 12C0174 12C0175 12C0176 12C0177 12C0178 12C0179 12C0180 12C0181 12C0182 12C0183 12C0184 12C0185 12C0186 12C0187 12C0920 12C0890 12C0875 Units 1 1 1 1 1 1 1 1 1 1
  • Lexmark Optra SC 1275 | Service Manual - Page 161
    Assembly 4: Drive 5-14
  • Lexmark Optra SC 1275 | Service Manual - Page 162
    Ref 4-1 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Part Number 12C0821 12C0191 12C0192 12C0193 12C0194 12C0195 12C0196 12C0197 12C0198 12C0199 12C0200 12C0201 12C0202 12C0203 12C0204 12C0205 12C0206 12C0207 12C0208 12C0209 12C0210 12C0211 12C0212
  • Lexmark Optra SC 1275 | Service Manual - Page 163
    Assembly 4: Drive (Cont) 5-16
  • Lexmark Optra SC 1275 | Service Manual - Page 164
    Ref 4-38 39 40 41 42 43 44 45 46 47 48 Part Number 12C0225 12C0020 12C0226 12C0227 12C0228 12C0229 12C0230 12C0231 12C0033 12C0232 12C0023 12C0920 12C0890 12C0875 Units 1 2 1 1 1 1 1 1 1 1 1 1 1 1 Description Lever Motor, (M1/M2), Developer, Transport Ground Plate Bushing Clutch Spring Flange
  • Lexmark Optra SC 1275 | Service Manual - Page 165
    Assembly 5: Paper Take-Up 1 5-18
  • Lexmark Optra SC 1275 | Service Manual - Page 166
    , Timing Roller, Lower, Timing Bushing Lever, Left Cam, Left Pin Shaft Roll Roller, Take-up, Bin 1 Ground Plate Cam, Right Label Jam Removal Guide Cover Lever, Right Bushing Solenoid, (SL3), Paper Take-up 1 Solenoid, (SL4), Transport Gear 48/69T Clutch Spring Holder Arbor Gear 49T Holder Gear 72T
  • Lexmark Optra SC 1275 | Service Manual - Page 167
    Assembly 5: Paper Take-Up 1, (Cont) 5-20
  • Lexmark Optra SC 1275 | Service Manual - Page 168
    Ref 5-38 39 40 41 42 43 44 Part Number 12C0267 12C0268 12C0269 12C0270 12C0271 12C0031 12C0272 12C0920 12C0890 12C0875 Units 1 1 1 1 1 1 2 1 1 1 Description Gear 29T Bushing Gear 23T Bushing Bracket, Solenoid Solenoid, (SL2), Synchronizing Bushing Parts Packet 1, Screws Parts Packet 2, Retainers,
  • Lexmark Optra SC 1275 | Service Manual - Page 169
    Assembly 6: Paper Take-Up 2 5-22
  • Lexmark Optra SC 1275 | Service Manual - Page 170
    Frame Terminal Terminal Holder, PWB-R Ground Plate PW Board, (PWB-R1), Register Board Stopper Stopper Ground Plate Pressure Spring Separator Guide Joint Roller Tension Spring Lever Right Frame Parts Packet 1, Screws Parts Packet 2, Retainers, Pins Parts Packet 3, Cable, Clip, Cover Parts Catalog
  • Lexmark Optra SC 1275 | Service Manual - Page 171
    Assembly 7: Image Transfer Belt 5-24
  • Lexmark Optra SC 1275 | Service Manual - Page 172
    Ref 7-1 Part Number 12C0013 12C0920 12C0890 12C0875 Units 1 1 1 1 Description Image Transfer Belt Assembly Parts Packet 1, Screws Parts Packet 2, Retainers, Pins Parts Packet 3, Cable, Clip, Cover Parts Catalog 5-25
  • Lexmark Optra SC 1275 | Service Manual - Page 173
    Assembly 8: Image Transfer Belt 5-26
  • Lexmark Optra SC 1275 | Service Manual - Page 174
    Ref 8-1 Part Number 12C0920 12C0890 12C0875 Units 1 1 1 1 Description Cleaner, Part of Image Transfer Belt Parts Packet 1, Screws Parts Packet 2, Retainers, Pins Parts Packet 3, Cable, Clip, Cover Parts Catalog 5-27
  • Lexmark Optra SC 1275 | Service Manual - Page 175
    Assembly 9: Transfer Roller 5-28
  • Lexmark Optra SC 1275 | Service Manual - Page 176
    Ref 9-1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 27 32 33 34 35 36 37 Part Number 12C0385 12C0386 12C0387 12C0388 12C0389 12C0390 12C0391 12C0392 12C0393 12C0012 12C0394 12C0395 12C0396 12C0397 12C0398 12C0399 12C0400 12C0401 12C0402 12C0403 12C0404 12C0405 12C0406 12C0407
  • Lexmark Optra SC 1275 | Service Manual - Page 177
    Assembly 9: Transfer Roller (Cont) 5-30
  • Lexmark Optra SC 1275 | Service Manual - Page 178
    Ref 9-38 39 40 41 42 43 44 45 46 47 48 Part Number 12C0420 12C0421 12C0422 12C0423 12C0424 12C0425 12C0426 12C0427 12C0428 12C0429 12C0014 12C0920 12C0890 12C0875 Units 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Description Gear 26T Washer Torsion Spring Holder Lever Cam Gear 16T Gear 28T Gear 16T Right Frame
  • Lexmark Optra SC 1275 | Service Manual - Page 179
    Assembly 10: Paper Transport 5-32
  • Lexmark Optra SC 1275 | Service Manual - Page 180
    Roll Roller Harness Bracket, Connector Harness Plate Spring Bracket Harness Duct Seal Guide, Right Photo Interrupter, (PC9) Auxiliary Plate Cover Guide, Left Support Bushing Ground Plate Fan Motor, (M7) Duct Duct Seal Seal Guide Plate Gear 18T Stopper Parts Packet 1, Screws Parts Packet 2, Retainers
  • Lexmark Optra SC 1275 | Service Manual - Page 181
    Assembly 11: Rack 5-34
  • Lexmark Optra SC 1275 | Service Manual - Page 182
    24T Bushing Reinforce Plate Bushing Gear 34T Gear 42T Shaft Guide Guide Washer Holder Axle Plate Terminal Terminal Terminal Terminal Terminal Guide, Left Terminal Label Label Magenta Plate Cartridge Key, Magenta Guide, Cartridge Label Cyan Cartridge Key, Cyan Label Black Ground Plate Adjusting Plate
  • Lexmark Optra SC 1275 | Service Manual - Page 183
    Assembly 11: Rack (Cont) 5-36
  • Lexmark Optra SC 1275 | Service Manual - Page 184
    Shoulder Screw Lever Frame Torsion Spring Terminal Terminal Guide, Right Adjusting Plate Stopper Bracket, Photo Interrupter Harness Photo Interrupter (PC4), Rack Home (PC4), and Backcheck Pawl PW Board-B, (PWB-B) Axle Polyester Film Toner Cartridge Rack Assembly Parts Packet 1, Screws Parts Packet
  • Lexmark Optra SC 1275 | Service Manual - Page 185
    Assembly 12: Fuser 1 5-38
  • Lexmark Optra SC 1275 | Service Manual - Page 186
    Part Number 12C0558 12C0560 12C0563 12C0564 12C0572 12C0573 12C0575 12C0576 12C0920 12C0890 12C0875 Units 1 1 1 1 1 1 1 1 1 1 1 Description Cover, Upper Guide Plate Label Cover, Left Holder Cover, Right Fuser, 120 V, Includes Image Transfer Roll Assembly Fuser, 240 V, Includes Image Transfer Roll
  • Lexmark Optra SC 1275 | Service Manual - Page 187
    Assembly 13: Fuser 2 5-40
  • Lexmark Optra SC 1275 | Service Manual - Page 188
    Ref 13-1 2 2 Part Number 12C0596 12C0610 12C0611 12C0920 12C0890 12C0875 Units 1 1 1 1 1 1 Description Knob Tube Lamp, (H1), 110 V Tube Lamp, (H1), 240 V Parts Packet 1, Screws Parts Packet 2, Retainers, Pins Parts Packet 3, Cable, Clip, Cover Parts Catalog 5-41
  • Lexmark Optra SC 1275 | Service Manual - Page 189
    Assembly 14: Fuser/Exit 5-42
  • Lexmark Optra SC 1275 | Service Manual - Page 190
    NP NP NP NP NP NP NP NP NP 2 1 2 1 1 2 2 1 2 1 1 1 1 1 1 1 1 Description Gear 30/46T Shaft Torsion Spring Guide Guide Shaft Roll Holder, Roll Neutralizing Brush Bushing Torsion Spring Actuator Guide Roller Gear 15T Ground Plate Bracket Label Lever Rail Knob Axle Plate Lock Plate Torsion Spring Rail
  • Lexmark Optra SC 1275 | Service Manual - Page 191
    Assembly 15: Exit 5-44
  • Lexmark Optra SC 1275 | Service Manual - Page 192
    12C0004 12C0007 12C0680 12C0681 12C0682 12C0683 12C0684 12C0042 12C0685 12C0686 12C0072 Units 3 1 2 1 1 6 1 1 2 1 1 2 1 1 1 3 2 1 1 1 1 1 1 1 1 1 2 1 1 1 1 2 1 1 2 Description Ground Plate Guide Pulley 16T Axle Plate, Pulley Timing Belt Bushing Pulley Pulley Stopper Frame Roller Roller Duct Fan
  • Lexmark Optra SC 1275 | Service Manual - Page 193
    Assembly 16: Electrical Parts 5-46
  • Lexmark Optra SC 1275 | Service Manual - Page 194
    Ref 16-1 2 2 3 4 5 6 7 8 9 10 11 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 13 14 15 16 17 18 19 Part Number 12C0688 12C0009 12C0010 12C0689 12C0690 12C0691 12C0034 12C0019 12C0692 12C0693 12C0694 12C0037 11D0328 11D0333 11D0334 11D0334 11D0334 11D0335 11D0334 11D0336 11D0336 11D0336
  • Lexmark Optra SC 1275 | Service Manual - Page 195
    Assembly 16: Electrical Parts (Cont) 5-48
  • Lexmark Optra SC 1275 | Service Manual - Page 196
    12C0827 12C0828 12C0920 12C0890 12C0875 Units 1 1 1 2 1 1 1 1 1 1 2 1 3 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Description Bracket, Microswitch Microswitch, (S5) Harness Guide Rail Bracket Harness Harness PWB Support Bracket, PWB-E PW Board-E, (PWB-E1) Shoulder Screw Harness Shoulder Screw Bracket
  • Lexmark Optra SC 1275 | Service Manual - Page 197
    Assembly 17: Second Cassette (Tray 1) 5-50
  • Lexmark Optra SC 1275 | Service Manual - Page 198
    Gear 52T Gear 20T Gear 44T Axle Bushing Shaft Solenoid, (SL7) Photo Interrupter, (PC10/11) Support Stopper Cover Roller, Take-up Roller, Take-up Actuator Set Plate Guide Shaft Bushing Support Lock Lever Guide, Left Rack Gear, Left Cassette Body Label Paper Set Front Cover, Cassette Label Paper Size
  • Lexmark Optra SC 1275 | Service Manual - Page 199
    Assembly 17: Second Cassette (Tray 1) (Cont) 5-52
  • Lexmark Optra SC 1275 | Service Manual - Page 200
    12C0759 12C0760 12C0761 12C0762 12C0763 12C0920 12C0890 12C0875 Units 1 1 2 1 2 1 1 1 1 1 Description Rack Gear, Right Lifting Plate Pressure Spring Gear 14T Pad Roller Guide, Right Parts Packet 1, Screws Parts Packet 2, Retainers, Pins Parts Packet 3, Cable, Clip, Cover Parts Catalog 5-53
  • Lexmark Optra SC 1275 | Service Manual - Page 201
    Assembly 18: Third Cassette (Tray 2) 5-54
  • Lexmark Optra SC 1275 | Service Manual - Page 202
    Cover Set Plate Support Bushing Shaft Roller Roller Cover Stopper Roller Lever Plate Spring Bracket, PWB-E Harness PW Board-E, (PWB-E2) Gear 26T Shaft Bushing Gear 20T Arbor Holder Clutch Spring Gear 52T Actuator Solenoid, (SL8) Photo Interrupter, (PC13/14) Support Guide Base Plate Parts Catalog
  • Lexmark Optra SC 1275 | Service Manual - Page 203
    Assembly 19: Paper Tray 5-56
  • Lexmark Optra SC 1275 | Service Manual - Page 204
    12C0750 12C0751 12C0753 12C0754 12C0755 12C0756 12C0759 12C0760 12C0920 12C0890 12C0875 Units 1 2 1 1 1 2 1 1 1 1 1 1 2 2 1 1 1 1 2 1 1 1 1 Description Lifting Plate Pad Guide, Right Cassette Body Guide, Left Lock Lever Rack Gear, Left Front Cover Label Paper Size Lever Label Paper Set Shaft
  • Lexmark Optra SC 1275 | Service Manual - Page 205
    Assembly 20: Controller Card 5-58
  • Lexmark Optra SC 1275 | Service Manual - Page 206
    Ref 20-1 2 3 4 5 5 7 Part Number 12C0800 12C0801 12C0802 12C0803 99A0519 99A0520 12C0805 99A0421 99A0521 99A0522 99A0523 99A0420 12C0920 12C0890 12C0875 Units 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 Description Controller Card SIMM Code, Controller Card Riser Card, Controller Card Blank Cover, Controller
  • Lexmark Optra SC 1275 | Service Manual - Page 207
    5-60
  • Lexmark Optra SC 1275 | Service Manual - Page 208
    sensor test 2-56 basic printer paper passage test 2-48 button test 2-51 C clean engine test 2-51 clearing the error log 2-59 connectors 4-18 controller card 5-54 cover removals 3-5 I image quality troubleshooting 2-42 image transfer belt removal 3-7 image transfer belt service check 2-35 image
  • Lexmark Optra SC 1275 | Service Manual - Page 209
    2-53 parts not to be touched 3-2 parts of the printer 4-1 power supply cooling fan motor service check 2-39 power unit frame removal 3-14 power unit removal cartridge rack removal 3-16 toner cartridge rack service check 2-38 toner empty/toner cartridge board removal 3-16 toner empty/toner cartridge
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5040-001
Optra™ SC 1275
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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