• Code: 910
• Description: Drive Motor Error
• Remedy: 1 Are connectors CN1 and CN5 on the motor drive board connected properly? Go to step 2. Connect CN1 and CN5.
  2 Is connector CN33 on the printer controller board connected properly? Replace the motor drive board and go to step
  3. Connect CN33. 3 Did replacement of the motor drive board solve the problem? Problem solved. Replace the printer controller board and go to step 4.
  4 Did replacement of the printer controller board solve the problem? Problem solved. Replace all the supplies and go to step 5.
  5 Did replacement of the supplies solve the problem? Problem solved. Replace the drive motor.

• Code: 911
• Description: Paper Exit Motor Error
• Remedy: 1 Is connector CN4 on the printer controller board securely connected? Replace the paper exit motor and go to step 2. Plug the connector in securely.
  2 Did replacement of the paper exit motor solve the problem? Problem solved. Replace the printer controller board.

• Code: 912
• Description: High-Capacity Feed Motor Error
• Remedy: 1 Is connector CN40 on the printer controller board securely connected? Go to “Highcapacity feeder (HCF) service check”. Plug the connector in securely.

• Code: 917
• Description: RIP Fan Error
• Remedy: 1 Is connector J5 on the RIP board connected properly? Go to step 2. Properly connect J5.
  2 Is 24 V dc present between pins 1 and 3 of connector J5 on the RIP board? Replace the RIP fan. Go to step 3.
  3 Is 24 V dc present between pin 80 of the RIP/printer controller and ground? Replace the RIP board. Replace the printer controller board.

• Code: 918
• Description: Main Unit Fan Error
• Remedy: 1 Is +24 V present between pins 1 and 3 on connectors CN17 (upper left fan) and CN5 (upper right fan) on the printer controller board? Replace the failing fan. Replace the printer controller board.

• Code: 919
• Description: Power Supply Fan Error
• Remedy: 1 Is +24 V present between pins 1 and 3 of connector CN6 on the printer controller board? Replace the power supply fan. Replace the printer controller board.

• Code: 920
• Description: Fuser Error—Fuser Heater Trouble
• Remedy: 1 Replace the fuser. Did this fix the problem? Problem solved. Return the fuser, replace the power supply 2 and go to step 2.
  2 Did replacing power supply 2 fix the problem? Problem solved. Return power supply 2 and replace the printer controller board.

• Code: 923
• Description: Upper Fuser Thermistor Open Error
• Remedy: 1 Is connector CN44 on the printer controller board connected properly? Disconnect CN44 and turn the printer on. Go to step 2. Plug the connector in securely.
  2 Is error 923 displayed? Power off and reconnect CN44. Go to step 3. Replace the printer controller board.
  3 Power the printer off and short pins 1 and 4 of CN44 and power on. Is error 923 displayed? Replace the fuser. Replace the printer controller board.