Lexmark X940e Owners Manual
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Diagnostic information2-135 7510 Go Back Previous Next 902.00 General upper engine error fuse #1 Step Check Yes No 1Perform a POR. Does the error occur when the power is turned off/on?Go to step 2. Perform several print tests. If the problem remains, go to step 2. 2Check the rear upper cooling fan cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 3. Repair or replace the appropriate cable assemblies or replace the rear upper cooling fan. Go to “Rear upper cooling fan removal” on page 4-111. 3Check the rear lower cooling fan cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 4. Repair or replace the appropriate cable assemblies or replace the rear lower cooling fan assembly. Go to “Rear lower cooling fan assembly removal” on page 4-99. 4Check the fuser cooling fan cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 5. Repair or replace the appropriate cable assemblies or replace the fuser cooling fan. Go to “Fuser cooling fan removal” on page 4-101. 5Check the transfer belt drive motor cooling fan cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 6 Repair or replace the appropriate cable assemblies or replace the transfer belt drive motor cooling fan. Go to “Transfer belt drive motor cooling fan removal” on page 4-92. 6Check the 24V LVPS cooling fan cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 7. Repair or replace the appropriate cable assemblies or replace the 24V LVPS cooling fan. Go to “24V LVPS cooling fan removal” on page 4-98.
2-136Service Manual 7510 Go Back Previous Next 902.01 General upper engine error fuse #2 7Check the printhead assembly cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 8. Repair or replace the appropriate cable assemblies or replace the printhead assembly. Go to “Printhead assembly removal” on page 4-104. 8Perform a POR. Does the error occur when the power is turned off/on?Replace the upper printer engine card assembly. Go to “Upper printer engine card assembly removal” on page 4-88.Problem solved. Step Check Yes No 1Perform a POR. Does the error occur when the power is turned off/on?Go to step 2. Perform several print tests. If the problem remains, go to step 2. 2Check the erase lamp cable assemblies and any other associated cables for damage. Are the above components free from crimps and damage?Go to step 3. Repair or replace the appropriate cable assemblies. 3Check the image density sensor assembly cables for damage. Are the above components free from crimps and damage?Go to step 4. Repair or replace the appropriate cable assemblies or the image density sensor assembly. Go to “Image density sensor assembly removal” on page 4-55. 4Perform a POR. Does the error occur when the power is turned off/on?Replace the upper printer engine card assembly. Go to “Upper printer engine card assembly removal” on page 4-88.Problem solved. Step Check Yes No
Diagnostic information2-137 7510 Go Back Previous Next 902.02 General upper engine error fuse #3 Step Check Yes No 1Perform a POR. Does the error occur when the power is turned off/on?Go to step 2. Perform several print tests. If the problem remains, go to step 2. 2Check the CMYK toner add motor assembly cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 3. Repair or replace the appropriate cable assemblies or replace the CMYK toner add motor assembly. Go to “CMYK toner add motor assembly removal” on page 4-103. 3Check the waste toner agitator motor assembly cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 4. Repair or replace the appropriate cable assemblies or the waste toner agitator motor assembly. Go to “Waste toner agitator motor assembly removal” on page 4-54. 4Perform a POR. Does the error occur when the power is turned off/on?Replace the upper printer engine card assembly. Go to “Upper printer engine card assembly removal” on page 4-88.Problem solved.
2-138Service Manual 7510 Go Back Previous Next 902.03 General lower engine error fuse #1 902.04 General lower engine error fuse #2 Step Check Yes No 1Perform a POR. Does the error occur when the power is turned off/on?Go to step 2. Perform several print tests. If the problem remains, go to step 2. 2Check the duplex drive motor assembly cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 3. Repair or replace the appropriate cable assemblies or replace the duplex unit assembly. Go to “Duplex unit assembly removal” on page 4-10. 3Perform a POR. Does the error occur when the power is turned off/on?Replace the lower printer engine card assembly. Go to “Lower printer engine card assembly removal” on page 4-91.Problem solved. Step Check Yes No 1Perform a POR. Does the error occur when the power is turned off/on?Go to step 2. Perform several print tests. If the problem remains, go to step 2. 2Check the transfer belt drive motor assembly cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 3. Repair or replace the appropriate cable assemblies or replace the transfer belt drive motor assembly. Go to “Transfer belt drive motor assembly removal” on page 4-93. 3Check the laser diode power card assembly cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 4. Repair or replace the appropriate cable assemblies or laser diode power card assembly. Go to “Laser diode power card assembly removal” on page 4-94.
Diagnostic information2-139 7510 Go Back Previous Next 902.05 General lower engine error fuse #3 4Replace the transfer belt unit assembly. Go to “Transfer belt unit assembly removal” on page 4-16. Does the error occur when the power is turned off/on?Replace the lower printer engine card assembly. Go to “Lower printer engine card assembly removal” on page 4-91.Problem solved. Step Check Yes No 1Perform a POR. Does the error occur when the power is turned off/on?Go to step 2. Perform several print tests. If the problem remains, go to step 2. 2Check the MPF/transport drive motor assembly cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 3. Repair or replace the appropriate cable assemblies or replace the MPF/transport drive motor assembly. Go to “MPF / transport drive motor assembly removal” on page 4-114. 3Perform a POR. Does the error occur when the power is turned off/on?Replace the lower printer engine card assembly. Go to “Lower printer engine card assembly removal” on page 4-91.Problem solved. Step Check Yes No
2-140Service Manual 7510 Go Back Previous Next 902.06 General lower engine error fuse #4 Step Check Yes No 1Perform a POR. Does the error occur when the power is turned off/on?Go to step 2. Perform several print tests. If the problem remains, go to step 2. 2Check the transfer belt steering motor assembly cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 3. Repair or replace the appropriate cable assemblies or replace the transfer belt steering motor assembly. Go to “Transfer belt steering motor removal” on page 4-75. 3Check the printhead shutter motor assembly cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 4. Repair or replace the appropriate cable assemblies or replace the printhead shutter motor assembly. Go to “Printhead shutter motor assembly” on page 4-78. 4Check the 2nd transfer roll retract motor assembly cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 5. Repair or replace the appropriate cable assemblies or replace the 2nd transfer roll retract motor assembly. Go to “2nd transfer roll retract motor assembly removal” on page 4-45. 5Check the developer/transfer roll HVPS card assembly cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 6. Repair or replace the appropriate cable assemblies or replace the developer/transfer roll HVPS card assembly. Go to “Developer / transfer roll HVPS card assembly removal” on page 4-112. 6Perform a POR. Does the error occur when the power is turned off/on?Replace the lower printer engine card assembly. Go to “Lower printer engine card assembly removal” on page 4-91.Problem solved.
Diagnostic information2-141 7510 Go Back Previous Next 902.07 General lower engine error fuse #5 Step Check Yes No 1Perform a POR. Does the error occur when the power is turned off/on?Go to step 2. Perform several print tests. If the problem remains, go to step 2. 2Check the registration clutch cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 3. Repair or replace the appropriate cable assemblies or replace the registration clutch. Go to “Registration clutch removal” on page 4-47. 3Check the tray #1 media feed lift motor cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 4. Repair or replace the appropriate cable assemblies or replace media feed lift motor. Go to “Media feed lift motor removal” on page 4-120. 4Check the MPF pick solenoid cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 5. Repair or replace the appropriate cable assemblies or replace the MPF feed unit assembly. Go to “MPF feed unit assembly removal” on page 4-8. 5Check the exit diverter gate solenoid cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 6 Repair or replace the appropriate cable assemblies or replace the duplex media inverter assembly. Go to “Duplex media inverter assembly removal” on page 4-9. 6Check the duplex diverter gate solenoid cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 7. Repair or replace the appropriate cable assemblies or replace the duplex media inverter assembly. Go to “Duplex media inverter assembly removal” on page 4-9.
2-142Service Manual 7510 Go Back Previous Next 903.00 K developer/transport drive assembly motor error 7Check the inverter forward clutch cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 8. Repair or replace the appropriate cable assemblies or replace the duplex media inverter assembly. Go to “Duplex media inverter assembly removal” on page 4-9. 8Check the inverter reverse clutch cables and any associated cables for damage. Are the above components free from crimps and damage?Go to step 9. Repair or replace the appropriate cable assemblies or replace the duplex media inverter assembly. Go to “Duplex media inverter assembly removal” on page 4-9. 9Perform a POR. Does the error occur when the power is turned off/on?Replace the lower printer engine card assembly. Go to “Lower printer engine card assembly removal” on page 4-91.Problem solved. Step Check Yes No 1Perform a POR. Does the error occur when the power is turned off/on?Go to step 2. Perform several print tests. If the problem remains, go to step 2. 2Check the K developer/transport drive motor assembly for proper operation. Caution: When performing motor tests, ensure that all cover and door interlock switches are overridden. 1. Enter the Diagnostics Menu. 2. Touch MOTOR TESTS. 3. Touch Printer Motor Tests 4. Touch K developer/transport drive motor Does the above component operate properly?Go to step 4. Go to step 3. Step Check Yes No
Diagnostic information2-143 7510 Go Back Previous Next 903.01 K PC drive motor error 3Check the K developer/transport drive motor assembly for proper connection. Is the above component properly connected?Replace the K developer/ transport drive motor assembly. Go to “K developer / transport drive motor assembly removal” on page 4-106.Replace the connection. 4Perform a POR. Does the error occur when the power is turned off/on?Replace the lower printer engine card assembly. Go to “Lower printer engine card assembly removal” on page 4-91.Problem solved. Step Check Yes No 1Perform a POR. Does the error occur when the power is turned off/on?Go to step 2. Perform several print tests. If the problem remains, go to step 2. 2Check the CMYK PC cartridge drive motor assembly for proper operation. Caution: When performing motor tests, ensure that all cover and door interlock switches are overridden. 1. Enter the Diagnostics Menu. 2. Touch MOTOR TESTS. 3. Touch Printer Motor Tests 4. Touch K PC cartridge drive motor. Does the above component operate properly?Go to step 4. Go to step 3. 3Check the CMYK PC cartridge drive motor assembly for proper connection. Is the above component properly connected?Replace the CMYK PC cartridge drive motor assembly. Go to “CMYK PC cartridge drive motor assembly removal” on page 4-100.Replace the connection. Step Check Yes No
2-144Service Manual 7510 Go Back Previous Next 903.02 CMY PC drive motor error 4Perform a POR. Does the error occur when the power is turned off/on?Replace the lower printer engine card assembly. Go to “Lower printer engine card assembly removal” on page 4-91.Problem solved. Step Check Yes No 1Perform a POR. Does the error occur when the power is turned off/on?Go to step 2. Perform several print tests. If the problem remains, go to step 2. 2Check the CMYK PC cartridge drive motor assembly for proper operation. Caution: When performing motor tests, ensure that all cover and door interlock switches are overridden. 1. Enter the Diagnostics Menu. 2. Touch MOTOR TESTS. 3. Touch Printer Motor Tests 4. Touch CMY cartridge drive motor Does the above component operate properly?Go to step 4. Go to step 3. 3Check the CMYK PC cartridge drive motor assembly for proper connection. Is the above component properly connected?Replace the CMYK PC cartridge drive motor assembly. Go to “CMYK PC cartridge drive motor assembly removal” on page 4-100.Replace the connection. 4Perform a POR. Does the error occur when the power is turned off/on?Replace the lower printer engine card assembly. Go to “Lower printer engine card assembly removal” on page 4-91.Problem solved. Step Check Yes No