• Code: 2000
• Description: Main motor error
  The main motor ready input is not given for 2 s during the main motor is ON.
• Causes: Defective harness between main motor (CN1) and control PWB (YC17), or improper connector insertion. Defective drive transmission system of the main motor. Defective main motor. Defective control PWB.
• Remedy: Defective harness between main motor (CN1) and control PWB (YC17), 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 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 motor. Replace the main motor.
  Defective control PWB. Replace the control PWB.

• Code: 2610
• Description: PF paper feed motor error
  (Optional paper feeder 1) The PF paper feed motor of paper feeder 1 ready input is not given for 2 s during the PF paper feed motor is ON.
• Causes: Defective harness between PF paper feed motor and PF main PWB (YC4), or improper connector insertion. Defective PF paper feed motor drive transmission system. Defective PF main motor. Defective control PWB.
• Remedy: Defective harness between PF paper feed motor and PF main PWB (YC4), 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.
  Defective PF main motor. Replace the PF main motor.
  Defective control PWB. Replace the control PWB.

• Code: 2620
• Description: PF paper feed motor error (Optional paper feeder 2)
  The PF paper feed motor of paper feeder 2 ready input is not given for 2 s during the PF paper feed motor is ON.
• Causes: Defective harness between PF paper feed motor and PF main PWB (YC4), or improper connector insertion. Defective PF paper feed motor drive transmission system. Defective PF main motor. Defective control PWB.
• Remedy: Defective harness between PF paper feed motor and PF main PWB (YC4), 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.
  Defective PF main motor. Replace the PF main motor (Refer to the service manual for the paper feeder).
  Defective control PWB. Replace the control PWB.

• Code: 3100
• Description: ISU home position error
• Causes: Defective FFC between CCD PWB (YC1) and control PWB (YC8). Defective FFC between control PWB (YC6) and scanner PWB (YC103), or improper FFC insertion. Defective home position sensor. Defective harness between ISU motor and scanner PWB (YC104), or improper connector insertion. Defective ISU motor.
• Remedy: Defective FFC between CCD PWB (YC1) and control PWB (YC8). Replase the image scanner unit (ISU).
  Defective FFC between control PWB (YC6) and scanner PWB (YC103), or improper FFC insertion. Reinsert the FFC. Also check for continuity within the FFC. If none, remedy or replace the FFC.
  Defective home position sensor. Replace the home position sensor.
  Defective harness between ISU motor and scanner PWB (YC104), or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.
  Defective ISU motor. Replace the ISU motor.

• Code: 3200
• Description: Exposure lamp error
  The exposure lamp is not turned on.
• Causes: Defective FFC between scanner PWB (YC103) and control PWB (YC6), or improper FFC insertion. Defective FFC between CCD PWB (YC1) and control PWB (YC8). Defective harness between CCD PWB (YC3) and inverter PWB (YC101), or improper connector insertion. Defective harness between inverter PWB (YC102) and exposure lamp, or improper connector insertion. Defective exposure lamp. Defective inverter PWB. Defective control PWB
• Remedy: Defective FFC between scanner PWB (YC103) and control PWB (YC6), or improper FFC insertion. Reinsert the FFC. Also check for continuity within the FFC. If none, remedy or replace the FFC.
  Defective FFC between CCD PWB (YC1) and control PWB (YC8). Replase the image scanner unit (ISU).
  Defective harness between CCD PWB (YC3) and inverter PWB (YC101), or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.
  Defective harness between inverter PWB (YC102) and exposure lamp, or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.
  Defective exposure lamp. Replace the exposure lamp.
  Defective inverter PWB. Replace the inverter PWB.
  Defective control PWB. Replace the control PWB.

• Code: 3300
• Description: AGC error
  After AGC, correct input is not obtained at CCD
• Causes: Defective FFC between CCD PWB (YC1) and control PWB (YC8). Defective exposure lamp. Defective CCD PWB. Defective control PWB.
• Remedy: Defective FFC between CCD PWB (YC1) and control PWB (YC8). Replase the image scanner unit (ISU).
  Defective exposure lamp. Replace the exposure lamp.
  Defective CCD PWB. Replace the CCD PWB.
  Defective control PWB. Replace the control PWB.

• Code: 3500
• Description: CPU - ASIC (CCD PWB) communication error
  An error code is detected.
• Causes: Defective FFC between CCD PWB (YC1) and control PWB (YC8). Defective CCD PWB. Defective control PWB.
• Remedy: Defective FFC between CCD PWB (YC1) and control PWB (YC8). Replase the image scanner unit (ISU).
  Defective CCD PWB. Replace the CCD PWB.
  Defective control PWB. Replace the control PWB.

• Code: 4000
• Description: Polygon motor (laser scanner unit) error
  The polygon motor ready input is not given for 6 s during the polygon motor is ON.
• Causes: Defective harness between polygon motor and control PWB (YC10), or improper connector insertion .Defective laser scanner unit. Defective control PWB.
• Remedy: Defective harness between polygon motor and control PWB (YC10), 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. Replace the laser scanner unit.
  Defective control PWB. Replace the control PWB.