• 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 5 s during the PF paper feed motor is ON. 2610: Paper feeder 1 2620: Paper feeder 2 2630: Paper feeder 3
• Causes: Defective harness between PF paper feed motor and PF main PWB (YC6), or improper connector insertion. Defective PF paper feed motor drive transmission system. Defective PF main motor.or MCY. Defective PF main PWB.r.or MCY. Defective printer’s engine PWB.
• 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.
  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.
• Causes: Defective harness between developing motor K and engine PWB (YC26), or improper connector insertion. Defective drive transmission system of the developing motor K. Defective developing motor K. Defective engine PWB.
• 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.
  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 s during the polygon motor YK is ON.я
• Causes: Defective harness between polygon motor YK and engine PWB (YC29), or improper connector insertion. Defective laser scanner unit YK. Defective engine PWB.
• 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 s during the polygon motor MC is ON. PWB.
• Causes: Defective harness between polygon motor MC and engine PWB (YC30), or improper connector insertion. Defective laser scanner unit MC. Defective engine PWB.
• 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.
• Causes: Defective harness between APC PWB K and engine PWB (YC29), or improper connector insertion. Defective APC PWB K. Defective PD PWB K. Defective engine PWB.
• 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.

• Code: 4202
• Description: Laser output error (Cyan)
  The pin photo signal (PDN) is not output from PD PWB C for one second while laser is emitted.
• Causes: Defective harness between APC PWB C and engine PWB (YC30), or improper connector insertion. Defective APC PWB C. Defective engine PWB.
• Remedy: Defective harness between APC PWB C 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 APC PWB C. Replace the laser scanner unit MC.
  Defective PD PWB C. Replace the laser scanner unit MC.
  Defective engine PWB. Replace the engine PWB.

• Code: 4203
• Description: Laser output error (Magenta)
  The pin photo signal (PDN) is not output from PD PWB M for one second while laser is emitted.
• Causes: Defective harness between APC PWB M and engine PWB (YC30), or improper connector insertion. Defective APC PWB M. Defective PD PWB M. Defective engine PWB.
• Remedy: Defective harness between APC PWB M 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 APC PWB M. Replace the laser scanner unit MC.
  Defective PD PWB M. Replace the laser scanner unit MC.
  Defective engine PWB. Replace the engine PWB.

• Code: 4204
• Description: Laser output error (Yellow)
  The pin photo signal (PDN) is not output from PD PWB Y for one second while laser is emitted.
• Causes: Defective harness between APC PWB Y and engine PWB (YC29), or improper connector insertion. Defective APC PWB Y. Defective PD PWB Y. Defective engine PWB.
• Remedy: Defective harness between APC PWB Y 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 Y. Replace the laser scanner unit YK.
  Defective PD PWB Y. Replace the laser scanner unit YK.
  Defective engine PWB. Replace the engine PWB.