Lexmark C520n

• Code: 145-xx
• Description: Motor Error
  Bump aligner motor has failed
• Remedy: 1 Turn the printer off and remove the rear cover. Check connector JBUMP1 for proper connection to system card, cable for pinch points and cable or connector for any other damage. Is cable properly connected and damage free? Go to step 2. If connector is damaged on system card, replace system card. Go to “System card removal”. If JBUMP1 cable is damaged, replace bump aligner motor. Go to “Bump aligner gear removal”.
  2 Open the front access door and slowly close it. You should hear the 24V interlock switch closing when the door almost shuts. If you do not, check the switch for damage. Is the switch damaged? Replace 24V interlock switch. Go to “Top access door 24V interlock switch removal”. Go to step 3.
  3 Close the front access door. Turn printer power on and check for 24 V dc between JCVR1 pin 1 (red wire) and ground. Is voltage present? Note: Ground lead of voltmeter can be placed on metal chasis to obtain ground. Go to step 4. Disconnect JCVR1 and check for 24 V dc between pin 1 of system card connector and ground. If voltage is present, replace 24V interlock switch.Go to “Top access door 24V interlock switch removal”. If voltage is not present, replace system card. Go to “System card removal”.
  4 Reconnect JCVR1 if disconnected. Ensure top access door is completely closed. Check for 24 V dc between JCVR1 pin 2 (white wire) and ground. Is voltage present? Go to step 5. Replace 24V interlock switch.Go to “Top access door 24V interlock switch removal”.
  5 Replace bump aligner motor. Go to “Bump aligner motor removal”. Does error clear? Problem solved. Replace system card. Go to “System card removal”.

• Code: 146-xx
• Description: Motor Error
  Duplex motor has failed.
• Remedy: 1 Turn the printer off and remove the rear cover. Check connector JDUPLX1 for proper connection to system card, cable for pinch points and cable or connector for any other damage. Is cable properly connected and damage free? Go to step 2. If connector is damaged on system card, replace system card. Go to “System card removal”. If JDUPLX1 cable is damaged, replace duplex front door assembly. Go to “Duplex front door assembly removal”.
  2 Turn printer power on and check for 24 V dc between JCVR1 pin 1 (red wire) and ground. Is voltage present? Note: Ground lead of voltmeter can be placed on metal chasis to obtain ground. Go to step 3. Disconnect JCVR1 and check for 24 V dc between pin 1 of system card connector and ground. If voltage is present, replace 24V interlock switch.Go to “Top access door 24V interlock switch removal”. If voltage is not present, replace system card. Go to “System card removal”.
  3 Reconnect JCVR1 if disconnected. Ensure top access door is completely closed. Check for 24 V dc between JCVR1 pin 2 (white wire) and ground. Is voltage present? Go to step 4. Replace 24V interlock switch.Go to “Top access door 24V interlock switch removal”.
  4 Replace duplex front door assembly. Go to “Duplex front door assembly removal”. Problem solved. Replace system card. Go to “System card removal”.

• Code: 147-xx
• Description: Motor Error
  Tray 2 motor has failed.
• Remedy: 1 Turn the printer off and remove the rear cover. Check connector JOPT1 for proper connection to system card, cable for pinch points and cable or connector for any other damage. Is cable properly connected and damage free? Go step 2. If connector is damaged on system card, replace system card. Go to “System card removal”. If JOPT1 cable is damaged, replace option cable.
  2 Remove 500-sheet assembly. Check autoconnects on both the assembly and the printer for damage. Are connectors free of damage? Go to step 3. If connector is damaged on 500-sheet assembly, replace 500-sheet assembly. If JOPT1 cable is damaged, replace option cable.
  3 Check connectors J1 and J2 on the 500- sheet assembly for proper connection, cable for pinch points and cable or connector for any other damage. Are cables properly connected and damage free? Go to step 4. Replace 500-sheet assembly.
  4 Reinstall 500-sheet assembly. Does error clear? Problem solved. Go to step 5.
  5 Replace 500-sheet assembly. Does error clear? Problem solved. Replace system card. Go to “System card removal”.

• Code: 148-xx
• Description: Motor Error
  MPF motor has failed.
• Remedy: 1 Turn the printer off and remove the rear cover. Check connector JTRAY2 for proper connection to system card, cable for pinch points and cable or connector for any other damage. Is cable properly connected and damage free? Go to step 2. If connector is damaged on system card, replace system card. Go to “System card removal”. If JTRAY2 cable is damaged, replace paper pick mechanism. Go to “Paper pick mechanism assembly removal”.
  2 Measure the resistance across fuser F2 on the system card. Is fuser blown? Go to “Network system card” for fuse location on the network system card. Go to “Parallel system card” for fuse location on the network system card. Replace system card. Go to “System card removal”. Go to step 3.
  3 Replace paper pick mechanism. Go to “Paper pick mechanism assembly removal”. Does error clear? Problem solved. Replace system card. Go to “System card removal”.

• Code: 149-xx
• Description: Motor Error
  Tray 2 motor has failed.
• Remedy: 1 Turn the printer off and remove the rear cover. Check connector JOPT1 for proper connection to system card, cable for pinch points and cable or connector for any other damage. Is cable properly connected and damage free? Go step 2. If connector is damaged on system card, replace system card. Go to “System card removal”. If JOPT1 cable is damaged, replace option cable.
  2 Remove 500-sheet assembly. Check autoconnects on both the assembly and the printer for damage. Are connectors free of damage? Go to step 3. If connector is damaged on 500-sheet assembly, replace 500-sheet assembly. If JOPT1 cable is damaged, replace option cable.
  3 Check connectors J1 and J2 on the 500- sheet assembly for proper connection, cable for pinch points and cable or connector for any other damage. Are cables properly connected and damage free? Go to step 4. Replace 500-sheet assembly.
  4 Reinstall 500-sheet assembly. Does error clear? Problem solved. Go to step 5.
  5 Replace 500-sheet assembly. Does error clear? Problem solved. Replace system card. Go to “System card removal”.

• Code: 902-xx
• Description: Engine Software Error
  These errors indicate an unrecoverable system software error
• Remedy: POR the printer. If error persists, replace the system card.