• Code: 920-03
• Description: POST Error
  Transfer belt not connected
• Remedy: 1 Turn the printer off and remove the rear cover. Check connector JTRANS2 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 JTRANS2 cable is damaged, replace EP drive assembly. Go to “Electrophotographic Process (EP) drive assembly removal”.
  2 Replace EP drive assembly. Go to “Electrophotographic Process (EP) drive assembly removal”. Does error clear? Problem solved. Replace system card. Go to “System card removal”.

• Code: 920-04
• Description: POST Error
  Fuser motor not connected
• Remedy: 1 Turn the printer off and remove the rear cover. Check connector JFUSER1 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 fuser cable is damaged, replace cable.
  2 Remove fuser. Go to “Fuser removal”. Check DC auto-connects on both the fuser and the printer for damage. Are connectors free of damage? Go to step 3. If connector is damaged on fuser, replace fuser. If the cable connector is damaged, replace the DC auto-connect cable.
  3 Check for the following continuity between DC auto-connect and FUSER1. Is continuity present? DC auto-connect JFUSER1 pin 3 pin 3 pin 8 pin 8 pin 9 pin 9 pin 10 pin 10 Go to step 4. Replace DC fuser cable.
  4 Reinstall fuser. Go to “Fuser removal”. Does error clear? Problem solved. Go to step 5.
  5 Replace fuser. Go to “Fuser removal”. Does error clear? Problem solved. Replace system card. Go to “System card removal”.

• Code: 920-05
• Description: POST Error
  Printhead motor not connected
• Remedy: 1 Turn the printer off and remove the rear cover. Check connector JPH1 (large printhead cable) 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 printhead cable is damaged, replace printhead. Go to “Printhead removal”.
  2 Replace system card. Go to “System card removal”. Does error clear? Problem solved. Replace printhead. Go to “Printhead removal”.

• Code: 920-06
• Description: POST Error
  Input sensor not connected
• Remedy: 1 Turn the printer off and remove the rear cover. Check connector JTRAY1 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 JTRAY1 cable is damaged, replace paper pick mechanism. Go to “Paper pick mechanism assembly removal”.
  2 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: 920-07
• Description: POST Error
  Narrow media sensor not connected
• Remedy: 1 Turn the printer off and remove the rear cover. Check connector JTRAY1 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 JTRAY1 cable is damaged, replace paper pick mechanism. Go to “Paper pick mechanism assembly removal”.
  2 Check transparency sensor for correct mounting. Is transparency sensor properly mounted in paper pick mechanism? Go to step 3. Remove paper pick mechanism, properly install transparency sensor and reinstall paper pick mechanism. Go to “Paper pick mechanism assembly removal”.
  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: 920-08
• Description: POST Error
  Exit sensor not connected
• Remedy: 1 Turn the printer off and remove the rear cover. Check connector JFUSER1 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 fuser cable is damaged, replace cable.
  2 Remove fuser. Go to “Fuser removal”. Check DC auto-connects on both the fuser and the printer for damage. Are connectors free of damage? Go to step 3. If connector is damaged on fuser, replace fuser. If the cable connectors are damaged, replace the JFUSER1 cable.
  3 Check for the following continuity between DC auto-connect and FUSER1. Is continuity present? DC auto-connect JFUSER1 pin 6 pin 6 pin 7 pin 7 pin 8 pin 8 Go to step 4. Replace DC fuser cable.
  4 Reinstall fuser. Go to “Fuser removal”. Does error clear? Problem solved. Go to step 5.
  5 Replace fuser. Go to “Fuser removal”. Does error clear? Problem solved. Replace system card. Go to “System card removal”.

• Code: 920-09...920-12
• Description: POST Error
  One toner sensor not connected
• Remedy: 1 Turn the printer off and remove the rear cover. Check connector JHVPS1 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 HVPS1 cable is damaged, replace top access cover assembly. Go to “Top access cover assembly removal”.
  2 Remove left cover. Go to “Left cover removal”. Check all toner level sensor cables connected to the rear of the HVPS for proper connection to HVPS, cable for pinch points and cable or connector for any other damage. Are connectors properly connected and cables and connectors damage free? Go to step 3. Properly connect toner level sensor cable if not properly connected. If sensor cable or connector is damaged, replace sensor. Go to “Toner level sensor removal”. If connector is damaged on HVPS, replace HVPS. Go to “High volt power supply (HVPS) removal”.
  3 Disconnect JHVPS1 from system card and HVPS. Check for the following continuity. JHVPS1 cable HVPS end System card end pin 14 pin 14 Is continuity present? Go to step 4. Replace top access cover assembly. Go to “Top access cover assembly removal”.
  4 Reconnect JHVPS1 cable to system card and HVPS. Do not reinstall left cover, but ensure that front access door and top cover assembly are closed and that the waste toner assembly is reinstalled. Turn printer on. Attach the negative end of the voltmeter to the ground and check the voltage on pin 1 of each toner level sensor cable. You will need to check this on the back of the HVPS (see illustration below). Is there approximately 5 Vdc on any of the pins? Replace toner level sensor that has 5 V dc on pin 1. Go to “Toner level sensor removal”. Go to step 5.
  5 Replace HVPS. Go to “High volt power supply (HVPS) removal”. Does error clear? Problem solved. Replace system card. Go to “System card removal”.

• Code: 920-13
• Description: POST Error
  Cartridge motor 1 (top) not connected
• Remedy: 1 Turn the printer off and remove the rear cover. Check connector JCART1 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 JCART1 cable is damaged, replace JCART1 cable. The cable parts packet contains 1 cartridge motor cable that works for either of the cartridge motors.
  2 Remove right cover. Check for the following continuity between JCART1 and top cartridge connector. Is continuity present? JCART1 Top cartridge motor connector pin 1 pin 1 pin 2 pin 2 pin 3 pin 3 Go to step 3. Replace JCART1 cable. The cable parts packet contains 1 cartridge motor cable that works for either of the cartridge motors.
  3 Replace EP drive assembly. Go to “Electrophotographic Process (EP) drive assembly removal”. Does error clear? Problem solved. Replace system card. Go to “System card removal”.