Lexmark OptraImage SC 1275 Service Manual
Lexmark OptraImage SC 1275 Manual
View all Lexmark OptraImage SC 1275 manuals
Add to My Manuals
Save this manual to your list of manuals |
Lexmark OptraImage SC 1275 manual content summary:
- Lexmark OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage SC 1275 | Service Manual - Page 7
vii Service Manual - Lexmark OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage SC 1275 | Service Manual - Page 16
Chinese Laser Notice Korean Laser Notice Notices and Safety Information xvi - Lexmark OptraImage 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 OptraImage 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 OptraImage 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 - Lexmark OptraImage SC 1275 | Service Manual - Page 20
Notices and Safety Information xx - Lexmark OptraImage SC 1275 | Service Manual - Page 21
xxi Service Manual - Lexmark OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage SC 1275 | Service Manual - Page 33
AIDC detection is done for each Color Toner Cartridge after the developing rack position initializes. 1-12 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 35
1-14 - Lexmark OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 - Lexmark OptraImage SC 1275 | Service Manual - Page 51
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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 - Lexmark OptraImage SC 1275 | Service Manual - Page 82
(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 OptraImage 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 OptraImage 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 OptraImage 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 - Lexmark OptraImage SC 1275 | Service Manual - Page 86
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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 - Lexmark OptraImage SC 1275 | Service Manual - Page 91
, 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 OptraImage 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 - Lexmark OptraImage SC 1275 | Service Manual - Page 93
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 OptraImage 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 OptraImage SC 1275 | Service Manual - Page 95
Print Quality Test Page 2-60 - Lexmark OptraImage SC 1275 | Service Manual - Page 96
Print Quality Test Page Diagnostic Information 2-61 - Lexmark OptraImage SC 1275 | Service Manual - Page 97
2-62 - Lexmark OptraImage SC 1275 | Service Manual - Page 98
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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage SC 1275 | Service Manual - Page 119
8. Remove the E-ring. 9. Remove the upper unit right guide (3 screws). 3-22 - Lexmark OptraImage SC 1275 | Service Manual - Page 120
10. Remove the upper unit. 11. Remove the upper unit right support plate. Repair Information 3-23 - Lexmark OptraImage 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 OptraImage 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 OptraImage 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 OptraImage 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 OptraImage SC 1275 | Service Manual - Page 125
3-28 - Lexmark OptraImage 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 OptraImage 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 OptraImage SC 1275 | Service Manual - Page 128
Parts of the Printer Locations 4-3 - Lexmark OptraImage SC 1275 | Service Manual - Page 129
Parts of the Printer 4-4 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 131
Printing Process 4-6 - Lexmark OptraImage 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 OptraImage 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 OptraImage 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 OptraImage SC 1275 | Service Manual - Page 135
Gears and Rollers 4-10 - Lexmark OptraImage SC 1275 | Service Manual - Page 136
Gears and Rollers Locations 4-11 - Lexmark OptraImage SC 1275 | Service Manual - Page 137
Electrical Components 4-12 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 139
Electrical Components 4-14 - Lexmark OptraImage 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 OptraImage 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 OptraImage 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 OptraImage SC 1275 | Service Manual - Page 143
Connectors 4-18 - Lexmark OptraImage SC 1275 | Service Manual - Page 144
Printed Circuit Boards PWB-A Locations 4-19 - Lexmark OptraImage SC 1275 | Service Manual - Page 145
HV 1 PU1 PWB-E 4-20 - Lexmark OptraImage SC 1275 | Service Manual - Page 146
PWB-F HS1 PWB-B Locations 4-21 - Lexmark OptraImage SC 1275 | Service Manual - Page 147
4-22 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 149
Assembly 1: Housing 5-2 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 151
Assembly 1: Housing (Cont) 5-4 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 153
Assembly 2: Frames 1 5-6 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 155
Assembly 2: Frames 1 (Cont) 5-8 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 157
Assembly 3: Frames 2 5-10 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 159
Assembly 3: Frames 2, (Cont) 5-12 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 161
Assembly 4: Drive 5-14 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 163
Assembly 4: Drive (Cont) 5-16 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 165
Assembly 5: Paper Take-Up 1 5-18 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 167
Assembly 5: Paper Take-Up 1, (Cont) 5-20 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 169
Assembly 6: Paper Take-Up 2 5-22 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 171
Assembly 7: Image Transfer Belt 5-24 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 173
Assembly 8: Image Transfer Belt 5-26 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 175
Assembly 9: Transfer Roller 5-28 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 177
Assembly 9: Transfer Roller (Cont) 5-30 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 179
Assembly 10: Paper Transport 5-32 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 181
Assembly 11: Rack 5-34 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 183
Assembly 11: Rack (Cont) 5-36 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 185
Assembly 12: Fuser 1 5-38 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 187
Assembly 13: Fuser 2 5-40 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 189
Assembly 14: Fuser/Exit 5-42 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 191
Assembly 15: Exit 5-44 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 193
Assembly 16: Electrical Parts 5-46 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 195
Assembly 16: Electrical Parts (Cont) 5-48 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 197
Assembly 17: Second Cassette (Tray 1) 5-50 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 199
Assembly 17: Second Cassette (Tray 1) (Cont) 5-52 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 201
Assembly 18: Third Cassette (Tray 2) 5-54 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 203
Assembly 19: Paper Tray 5-56 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 205
Assembly 20: Controller Card 5-58 - Lexmark OptraImage 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 OptraImage SC 1275 | Service Manual - Page 207
5-60 - Lexmark OptraImage 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 OptraImage 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
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.
• Table of Contents
• Index
• Safety and Notices
• Trademarks
• Start Diagnostics
• Manuals Menu