Lexmark C 746 Service Manual
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Diagnostic information2-85 5026 Go Back Previous Next 244.03, 244.11—Paper Jam service check 244.05—Paper Jam service check Step Questions / actions Yes No 11. Bring the printer up in Diagnostics Menu (turn off the printer, press and hold buttons 3 and 6, then turn on the printer). 2. Navigate to PRINT TESTS > select a tray below tray 4 > Single. Did the page print correctly?Problem resolved. Go to step 2. 2Is tray 4 a high-capacity input option (2,000- sheet feeder)?Replace the HCIT top plate. See “Top plate assembly removal” on page 4-206.Replace the complete tray 4 option. Step Questions / actions Yes No 1Has paper been fed from an input option before?Go to step 5. Go to step 2. 21. Bring the printer up in Diagnostics Menu (turn off the printer, press and hold buttons 3 and 6, then turn on the printer). 2. Navigate to PRINT TESTS > select a tray below tray 3 > Single. Did the page print correctly?Problem resolved. Go to step 3. 31. Turn the printer off. 2. Remove the rear frame cover. See “Rear frame cover removal” on page 4-47. 3. Remove the right cover. See “Right cover removal” on page 4-51. 4. Check the connector at JOPT1 on the system board for proper connection, the cable for pinch points, and the cable or connector for any other damage. Is the cable damaged?Replace the option cable. Go to step 4.
2-86Service Manual 5026 Go Back Previous Next 244.10—Paper Jam service check 244.17—Paper Jam service check 41. Carefully lift the printer off the option, and lay the printer on its back. 2. Check the option connector for damage. Is the connector damaged?Replace the option cable. See “Option cable removal” on page 4-135. Go to step 5. 5Is tray 4 a high-capacity input option (2,000- sheet feeder)?Go to step 7. Go to step 6. 6Replace the complete tray 4 option. Does the error clear?Problem resolved. Replace the system board. See “System board removal” on page 4-155. 7Replace the high-capacity input tray (2,000- sheet feeder)?Problem resolved. Replace the system board. See “System board removal” on page 4-155. Step Questions / actions Yes No 11. Bring the printer up in Diagnostics Menu (turn off the printer, press and hold buttons 3 and 6, then turn on the printer). 2. Navigate to PRINT TESTS > select a tray below tray 4 > Single. Did the page feed correctly?Problem resolved Replace the complete tray 4 option. Step Questions / actions Yes No 1Has paper been fed from an input option before?Go to step 4. Go to step 2. Step Questions / actions Yes No
Diagnostic information2-87 5026 Go Back Previous Next 244.26—Paper Jam service check 21. Turn the printer off. 2. Remove the rear frame cover. See “Rear frame cover removal” on page 4-47. 3. Remove the right cover. See “Right cover removal” on page 4-51. 4. Check the connector in JOPT1 for proper connections to the system board, the cable for pinch points, and the cable or connector for any other damage. Is the cable damaged?Replace the option cable. See “Option cable removal” on page 4-135. Go to step 3. 3Carefully lift the printer off the option, and lay the printer on its back. Check the option connector for damage Did the page feed correctly?Replace the option cable. See “Option cable removal” on page 4-135.Go to step 4. 4Is tray 4 an high-capacity input tray (HCIT)? Replace the HCIT top plate. See “Top plate assembly removal” on page 4-206Replace the complete tray 4 option. Step Questions / actions Yes No 11. Determine the input tray. 2. Bring the printer up in Diagnostics Menu (turn off the printer, press and hold buttons 3 and 6, then turn on the printer). 3. Navigate to PRINT TESTS > select the input tray > Single. Did the page feed correctly?Problem resolved Go to step 2. Step Questions / actions Yes No
2-88Service Manual 5026 Go Back Previous Next 244.27—Paper Jam service check 244.29—Paper Jam service check 2Is tray 5 a high-capacity input tray (2,000- sheet feeder)?Replace the HCIT top plate. See “Top plate assembly removal” on page 4-206. Replace the complete tray 5 option. Step Questions / actions Yes No 11. Bring the printer up in Diagnostics Menu (turn off the printer, press and hold buttons 3 and 6, then turn on the printer). 2. Navigate to PRINT TESTS > select a tray below tray 4 > Single. Did the page feed correctly?Problem resolved. Replace the complete tray 4 option. Step Questions / actions Yes No 11. Bring the printer up in Diagnostics Menu (turn off the printer, press and hold buttons 3 and 6, then turn on the printer). 2. Navigate to PRINT TESTS > Tray 4 > Single. Did the page feed correctly?Problem resolved. Go to step 2. 2Is tray 4 a high-capacity input tray (2,000- sheet feeder)?Replace the HCIT elevator- up sensor. See “HCIT elevator motor with sensor removal” on page 4-200.Replace the complete tray 4 option. Step Questions / actions Yes No
Diagnostic information2-89 5026 Go Back Previous Next 245.02—Paper Jam service check Step Questions / actions Yes No 1Has paper been fed from an input option before?Go to step 4. Go to step 2. 21. Turn the printer off. 2. Remove the rear frame cover. See “Rear frame cover removal” on page 4-47. 3. Remove the right cover. See “Right cover removal” on page 4-51. 4. Check the connector JOPT1 for proper connection to the system board, the cable for pinch points, and the cable or connector for any other damage. Is the cable damaged?Replace the option cable. See “Option cable removal” on page 4-135.Go to step 3. 3Carefully lift the printer off the options, and lay the printer on its back. Check the option connector for damage. Is the connector damaged?Replace the option cable. See “Option cable removal” on page 4-135. Go to step 4. 4Replace the complete tray 5 option. Does the error clear?Problem resolved. Replace the system board. See “System board removal” on page 4-155.
2-90Service Manual 5026 Go Back Previous Next 245.03, 245.11—Paper Jam service check 245.05—Paper Jam service check Step Questions / actions Yes No 11. ring the printer up in Diagnostics Menu (turn the multifunction printer off, press and hold 3 and 6, turn the MFP on, and then release the buttons when the progress bar displays). 2. Navigate to PRINT TESTS > select a tray below tray 3 > Single. Did the page print correctly?Problem resolved. Go to step 2. 2Is tray 5 a high-capacity input option (2,000- sheet feeder)?Replace the HCIT top plate. See “Top plate assembly removal” on page 4-206.Replace the complete tray 5 option. Step Questions / actions Yes No 1Has paper been fed from an input option before?Go to step 5. Go to step 2. 21. Bring the printer up in Diagnostics Menu (turn off the printer, press and hold buttons 3 and 6, then turn on the printer). 2. Navigate to PRINT TESTS > Tray 5 > Single. Did the page feed correctly?Replace the option cable. See “Option cable removal” on page 4-135.Go to step 3. 31. Turn the printer off. 2. Remove the rear frame cover. See “Rear frame cover removal” on page 4-47. 3. Remove the right cover. See “Right cover removal” on page 4-51. 4. Check the connector at JOPT1 on the system board for proper connection, the cable for pinch points, and the cable or connector for any other damage. Is the cable damaged?Replace the option cable. See “Option cable removal” on page 4-135.Go to step 4.
Diagnostic information2-91 5026 Go Back Previous Next 245.10—Paper Jam service check 4Carefully lift the printer off the option, and lay the printer on its back. Check the option connector for damage. Is the connector damaged?Replace the option cable. See “Option cable removal” on page 4-135. Go to step 5. 5Is tray 4 a high-capacity input option (2,000- sheet feeder)?Go to step 7. Got to step 6. 6Replace the complete tray 5 option. Does the error clear?Problem resolved. Replace the system board. See “System board removal” on page 4-155. 7Replace the HCIT top plate. See “Top plate assembly removal” on page 4-206. Problem resolved. Replace the system board. See “System board removal” on page 4-155. Step Questions / actions Yes No 11. Bring the printer up in Diagnostic menu (turn off the printer, press and hold buttons 3 and 6, then turn on the printer). 2. Navigate to PRINT TESTS > select a tray below tray 5 > Single. Did the page feed correctly?Problem resolved. Replace the complete tray 5 option. Step Questions / actions Yes No
2-92Service Manual 5026 Go Back Previous Next 245.17—Paper Jam service check Step Questions / actions Yes No 1Has paper been fed from an input option before?Go to step 4. Go to step 2. 21. Turn the printer off. 2. Remove the rear frame cover. See “Rear frame cover removal” on page 4-47. 3. Remove the right cover. See “Right cover removal” on page 4-51. 4. Check the connector JOPT1 for proper connection to the system board, the cable for pinch points, and the cable or connector for any other damage. Is the cable damaged?Replace the option cable. See “Option cable removal” on page 4-135.Go to step 3. 3Carefully lift the printer off the options, and lay the printer on its back. Check the option connector for damage. Is the connector damaged?Replace the option cable. See “Option cable removal” on page 4-135. Go to step 4. 4Replace the complete tray 5 option. Does the error clear?Problem resolved. Replace the system board. See “System board removal” on page 4-155.
Diagnostic information2-93 5026 Go Back Previous Next 245.29—Paper Jam service check 900.00–900.99 (except 900.05)—System software error service check There are different types of 900.xx errors that can occur. There may be a communication problem (Bad cable, network connection, and so on) software issue, or a hardware problem with the controller board, or ISP (Internal solutions port). The communication and software aspects should be checked first. Determine if the problem is constant or intermittent. Use the troubleshooting procedure below to isolate the issue. Take any notes as instructed. You will need that information in the event you need to contact your next level support. Note: Before troubleshooting, determine the operating system used when the error occurred. If possible determine whether a PostScript or PCL file was sent to the device when the error occurred. Ask the customer which Lexmark Solutions applications are installed on the device. Step Questions / actions Yes No 11. Bring the printer up in Diagnostic menu (turn off the printer, press and hold buttons 3 and 6, then turn on the printer). 2. Navigate to PRINT TESTS > Tray 5 > Single. Did the page feed correctly?Problem resolved. Go to step 2. 2Is tray 5 a high-capacity input tray (2,000- sheet feeder)?Replace the HCIT elevator- up sensor. See “Top plate assembly removal” on page 4-206.Replace the complete tray 5 option. Step Action and questions Yes No 1POR the device. Does the error reoccur?Go to step 2. Problem resolved. 2• Write down the exact 900.xx error code displayed on the device. • Turn the device off. • Clear the print queues. • Disconnect all communication cables, and remove all memory options. • Remove all ISP and modem cards. • Restart the device into diagnostic mode. Does the 900.xx error reoccur during startup?Go to step 3. Go to step 6. 3Check all the cables connected to the RIP board for proper connectivity. Are the cables properly connected?Go to step 5. Go to step 4. 4Properly connect the cables to the RIP board. Restart the device into diagnostic mode. Does the 900.xx error reoccur during startup?Go to step 5. Go to step 6. 5Replace the RIP board, and restart the device. Does this fix the problem? Note: If an error, different from the original 900.xx, is displayed, consult the service check for that error.Problem resolved.Go to step 31.
2-94Service Manual 5026 Go Back Previous Next 6Print the following: •Error log • Menu settings page • Network settings page Does the 900.xx error reoccur while these pages were printing?Go to step 31. Go to step 7. 7Re-attach the communications cable. Restart the printer to operating mode. Send the printer a print job. Does the 900.xx error reoccur? Note: Before performing this step, write down this information about the file being sent to the printer: • Application used • Operating system • Driver type • File type (PCL, PostScript, XPS, etc.)Go to step 8. Go to step 10. 8Restart the printer to operating mode. Send a different print job to the device. Does the 900.xx error reoccur?Go to step 9. Go to step 10. 9Upgrade the firmware. Contact your next level of support for the correct firmware level to use. Restart the printer to operating mode. Send the printer a print job. Does the 900.xx error reoccur?Go to step 31. Go to step 10. 10Is the device a Multi Function Printer? Go to step 11. Go to step 13. 11Run a copy job. Does the 900.xx error reoccur?Go to step 31. Go to step 12. 12Run a scan to PC job. Does the 900.xx error reoccur?Go to step 31. Go to step 13. 13Is there optional memory installed? Go to step 14. Go to step16. 14Reinstall the memory, and send a print job to the device. Does the 900.xx error reoccur?Go to step 15. Go to step 16. 15Install a Lexmark recommended memory option. Send a print job to the device. Does the 900.xx error reoccur?Go to step 31. Problem resolved. 16Is there a modem installed on the device? Go to step 17. Go to step 21. 17Reinstall the modem. Restart the device. Does the 900.xx error reoccur?Go to step 18. Go to step 20. 18Upgrade the firmware. Contact your next level of support for the correct firmware level to use. Restart the printer to operating mode. Send the printer a print job. Does the 900.xx error reoccur?Go to step 19. Problem resolved. Step Action and questions Yes No