• Code: 925.03
• Description: Fan Error
  Fan has stalled.
• Remedy: 1 Turn the printer off, and then remove the rear frame cover. See “Rear frame cover removal”. Check the cable in connector JFAN1 (A) for proper connection to the system board, for pinch points, and for any other damage to the cable or the connector. Is the cable damaged? Replace the fan. See “Cooling fan removal”. Go to step 2.
  2 Measure the resistance across fuse F5 on the system board. Is the fuse blown? Replace the system board. See “System board removal”. Go to step 3.
  3 1. Disconnect the cable in connector JFAN1, and connect a new fan. 2. Bring the printer up in Diagnostic menu (turn off the printer, press and hold and . and turn on the printer). Did the error clear? Replace the cooling fan. See “Cooling fan removal”. Replace the system board. See “System board removal”.

• Code: 925.04
• Description: Blower Error
  Blower has stalled.
• Remedy: 1 Turn the printer off, and remove the rear frame cover. See “Rear frame cover removal”. Check the cable in connector JBLW1 (A) for proper connection to the system board, for pinch points, and any other damage to the cable or connector. Is the cable damaged? Replace the blower. See “Cartridge cooling fan removal”. Go to step 2.
  2 Measure the resistance across fuse F5 (A) on the system board. Is the fuse blown? Replace the system board. See “System board removal”. Go to step 3.
  3 Disconnect the cable in connector JBLW1, and connect a new cartridge cooling fan. Bring up the printer in Diagnostic menu Did the error clear? Replace the cartridge cooling fan. See “Cartridge cooling fan removal”. Replace the system board. See “System board removal”.

• Code: 925.05
• Description: Fan Error
  Fan has stalled.
• Remedy: 1 Turn the printer off, and then remove the rear frame cover. See “Rear frame cover removal”. Check the cable in connector JFAN1 (A) for proper connection to the system board, for pinch points, and for any other damage to the cable or the connector. Is the cable damaged? Replace the fan. See “Cooling fan removal”. Go to step 2.
  2 Measure the resistance across fuse F5 on the system board. Is the fuse blown? Replace the system board. See “System board removal”. Go to step 3.
  3 1. Disconnect the cable in connector JFAN1, and connect a new fan. 2. Bring the printer up in Diagnostic menu (turn off the printer, press and hold and . and turn on the printer). Did the error clear? Replace the cooling fan. See “Cooling fan removal”. Replace the system board. See “System board removal”.

• Code: 925.06
• Description: Blower Error
  Blower has stalled
• Remedy: 1 Turn the printer off, and remove the rear frame cover. See “Rear frame cover removal”. Check the cable in connector JBLW1 (A) for proper connection to the system board, for pinch points, and any other damage to the cable or connector. Is the cable damaged? Replace the blower. See “Cartridge cooling fan removal”. Go to step 2.
  2 Measure the resistance across fuse F5 (A) on the system board. Is the fuse blown? Replace the system board. See “System board removal”. Go to step 3.
  3 Disconnect the cable in connector JBLW1, and connect a new cartridge cooling fan. Bring up the printer in Diagnostic menu Did the error clear? Replace the cartridge cooling fan. See “Cartridge cooling fan removal”. Replace the system board. See “System board removal”.

• Code: 945.01
• Description: Transfer Roll
  Yellow transfer roll has failed.
• Remedy: 1 Replace the transfer module. POR the printer. Did the error clear? Problem resolved. Replace the original transfer module. Go to step 2.
  2 Turn the printer off, and then remove the rear frame cover. See “Rear frame cover removal”. Check the cable in connector JHVPS1 (A) 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 HVPS cable. See “High-voltage power supply (HVPS) cable removal”. Go to step 2.
  3 Disconnect JHVPS1 from system board and HVPS. Check for the following continuity. Pin 19 Pin 19 945.01, 946.01, 947.01 Pin 20 Pin 20 Pin 15 Pin 15 945.02, 946.02, 947.02 Pin 16 Pin 16 Pin 17 Pin 17 945.03, 946.03, 947.03 Pin 18 Pin 18 Pin 23 Pin 23 945.04, 946.04, 947.04 Pin 24 Pin 24 Is continuity present? Replace the HVPS cable. See “High-voltage power supply (HVPS) cable removal”.
  4 Remove the HVPS. See “High-voltage power supply (HVPS) removal”. Check for continuity between the contacts (yellow1 and yellow2, cyan1 and cyan2, magenta1 and magenta2, or black1 and black2) on the transfer contact assembly. Go to step 4. Replace the transfer contact assembly.
  4 Replace the HVPS. See “High-voltage power supply (HVPS) removal”. Does the error clear? Problem resolved. Replace the system board. See “System board removal”.

• Code: 945.02
• Description: Transfer Roll
  Cyan transfer roll has failed.
• Remedy: 1 Replace the transfer module. POR the printer. Did the error clear? Problem resolved. Replace the original transfer module. Go to step 2.
  2 Turn the printer off, and then remove the rear frame cover. See “Rear frame cover removal”. Check the cable in connector JHVPS1 (A) 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 HVPS cable. See “High-voltage power supply (HVPS) cable removal”. Go to step 2.
  3 Disconnect JHVPS1 from system board and HVPS. Check for the following continuity. Pin 19 Pin 19 945.01, 946.01, 947.01 Pin 20 Pin 20 Pin 15 Pin 15 945.02, 946.02, 947.02 Pin 16 Pin 16 Pin 17 Pin 17 945.03, 946.03, 947.03 Pin 18 Pin 18 Pin 23 Pin 23 945.04, 946.04, 947.04 Pin 24 Pin 24 Is continuity present? Replace the HVPS cable. See “High-voltage power supply (HVPS) cable removal”.
  4 Remove the HVPS. See “High-voltage power supply (HVPS) removal”. Check for continuity between the contacts (yellow1 and yellow2, cyan1 and cyan2, magenta1 and magenta2, or black1 and black2) on the transfer contact assembly. Go to step 4. Replace the transfer contact assembly.
  4 Replace the HVPS. See “High-voltage power supply (HVPS) removal”. Does the error clear? Problem resolved. Replace the system board. See “System board removal”.

• Code: 945.03
• Description: Transfer Roll
  Magenta transfer roll has failed
• Remedy: 1 Replace the transfer module. POR the printer. Did the error clear? Problem resolved. Replace the original transfer module. Go to step 2.
  2 Turn the printer off, and then remove the rear frame cover. See “Rear frame cover removal”. Check the cable in connector JHVPS1 (A) 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 HVPS cable. See “High-voltage power supply (HVPS) cable removal”. Go to step 2.
  3 Disconnect JHVPS1 from system board and HVPS. Check for the following continuity. Pin 19 Pin 19 945.01, 946.01, 947.01 Pin 20 Pin 20 Pin 15 Pin 15 945.02, 946.02, 947.02 Pin 16 Pin 16 Pin 17 Pin 17 945.03, 946.03, 947.03 Pin 18 Pin 18 Pin 23 Pin 23 945.04, 946.04, 947.04 Pin 24 Pin 24 Is continuity present? Replace the HVPS cable. See “High-voltage power supply (HVPS) cable removal”.
  4 Remove the HVPS. See “High-voltage power supply (HVPS) removal”. Check for continuity between the contacts (yellow1 and yellow2, cyan1 and cyan2, magenta1 and magenta2, or black1 and black2) on the transfer contact assembly. Go to step 4. Replace the transfer contact assembly.
  4 Replace the HVPS. See “High-voltage power supply (HVPS) removal”. Does the error clear? Problem resolved. Replace the system board. See “System board removal”.

• Code: 945.04
• Description: Transfer Roll
  Black transfer roll has failed.
• Remedy: 1 Replace the transfer module. POR the printer. Did the error clear? Problem resolved. Replace the original transfer module. Go to step 2.
  2 Turn the printer off, and then remove the rear frame cover. See “Rear frame cover removal”. Check the cable in connector JHVPS1 (A) 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 HVPS cable. See “High-voltage power supply (HVPS) cable removal”. Go to step 2.
  3 Disconnect JHVPS1 from system board and HVPS. Check for the following continuity. Pin 19 Pin 19 945.01, 946.01, 947.01 Pin 20 Pin 20 Pin 15 Pin 15 945.02, 946.02, 947.02 Pin 16 Pin 16 Pin 17 Pin 17 945.03, 946.03, 947.03 Pin 18 Pin 18 Pin 23 Pin 23 945.04, 946.04, 947.04 Pin 24 Pin 24 Is continuity present? Replace the HVPS cable. See “High-voltage power supply (HVPS) cable removal”.
  4 Remove the HVPS. See “High-voltage power supply (HVPS) removal”. Check for continuity between the contacts (yellow1 and yellow2, cyan1 and cyan2, magenta1 and magenta2, or black1 and black2) on the transfer contact assembly. Go to step 4. Replace the transfer contact assembly.
  4 Replace the HVPS. See “High-voltage power supply (HVPS) removal”. Does the error clear? Problem resolved. Replace the system board. See “System board removal”.