• Code: 2102
• Description: Developing motor MCY error The ready signal cannot be detected within 5 seconds after the developing motor MCY turns on.
• Remedy: Defective harness between developing motor MCY and engine PWB (YC27), or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.
  Defective drive transmission system of the developing motor MCY. Check if the gears rotate smoothly. If not, grease the bushings and gears. Check for broken gears and replace if any.
  Defective developing motor MCY. Replace the developing motor MCY.
  Defective engine PWB. Replace the engine PWB.

• Code: 2250
• Description: Main charger cleaning motor error When the main charger cleaning motor is driven, the main charger cleaning motor over-current detection signal is detected continuously for 50 times (5 s) at 100 ms intervals.
• Remedy: Defective harness between main charger cleaning motor and engine PWB (YC36), or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.
  Defective drive transmission system of the main charger cleaning motor. Check if the rollers and gears rotate smoothly. If not, grease the bushings and gears. Check for broken gears and replace if any.
  Defective main charger cleaning motor. Replace the main charger cleaning motor.
  Defective engine PWB. Replace the engine PWB.

• Code: 2500
• Description: Paper feed motor error The paper feed motor ready input is not given for 5 seconds during the main motor is ON.
• Remedy: Defective harness between paper feed motor and engine PWB (YC3), or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.
  Defective drive transmission system of the paper feed motor. Check if the rollers and gears rotate smoothly. If not, grease the bushings and gears. Check for broken gears and replace if any.
  Defective paper feed motor. Replace the paper feed motor.
  Defective engine PWB. Replace the engine PWB.

• Code: 2610, 2620, 2630
• Description: PF paper feed motor error (Option paper feeder) The PF paper feed motor of paper feeder 1 ready input is not given for 2 seconds during the PF paper feed motor is ON. 2610: Paper feeder 1 2620: Paper feeder 2 2630: Paper feeder 3
• Remedy: Defective harness between PF paper feed motor and PF main PWB (YC6), or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness. (Refer to the service manual for the paper feeder).
  Defective PF paper feed motor drive transmission system. Check if the gears rotate smoothly. If not, grease the bushings and gears. Check for broken gears and replace if any. (Refer to the service manual for the paper feeder).
  Defective PF main motor. Replace the PF main motor.
  Defective PF main PWB. Replace the PF main PWB (Refer to the service manual for the paper feeder).
  Defective printer’s engine PWB. Replace the printer’s engine PWB (Refer to the service manual for the printer).

• Code: 2830
• Description: Developing motor K error The ready signal cannot be detected within 5 seconds after the developing motor K turns on.
• Remedy: Defective harness between developing motor K and engine PWB (YC26), or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness (Refer to the service manual for the paper feeder).
  Defective drive transmission system of the developing motor K. Check if the gears rotate smoothly. If not, grease the bushings and gears. Check for broken gears and replace if any.
  Improper installation intermediate transfer unit. Check the installation of the intermediate transfer unit and reinstall them if necessary.
  Defective developing motor K. Replace the developing motor K.
  Defective engine PWB. Replace the engine PWB.

• Code: 4001
• Description: Polygon motor YK error The polygon motor YK ready input is not given for 10 seconds during the polygon motor YK is ON.
• Remedy: Defective harness between polygon motor YK and engine PWB (YC29), or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.
  Defective laser scanner unit YK. Replace the laser scanner unit YK.
  Defective engine PWB. Replace the engine PWB.

• Code: 4002
• Description: Polygon motor MC error The polygon motor MC ready input is not given for 10 seconds during the polygon motor MC is ON.
• Remedy: Defective harness between polygon motor MC and engine PWB (YC30), or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.
  Defective laser scanner unit MC. Replace the laser scanner unit MC.
  Defective engine PWB. Replace the engine PWB.

• Code: 4201
• Description: Laser output error (Black) The pin photo signal (PDN) is not output from PD PWB K for one second while laser is emitted.
• Remedy: Defective harness between APC PWB K and engine PWB (YC29), or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.
  Defective APC PWB K. Replace the laser scanner unit YK.
  Defective PD PWB K. Replace the laser scanner unit YK.
  Defective engine PWB. Replace the engine PWB.