Description: Machine number mismatch Machine number of main and engine does not match.
Causes: Data damage of control PWB EEPROM (U17).
Remedy: Data damage of control PWB EEPROM (U17). Contact the Service Administrative Division.
Code: 0420
Description: Paper feeder communication error Communication error between control PWB and optional paper feeder.
Causes: Improper installation paper feeder. Defective harness between control PWB (YC30) and paper feeder interface connector, or improper connector insertion. Defective control PWB Defective harness between PF main PWB (YC5) and paper feeder interface connector, or improper connector insertion. Defective PF main-PWB.
Remedy: Improper installation paper feeder. Follow installation instruction carefully again. Defective harness between control PWB (YC30) and paper feeder interface connector, or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness. Defective control PWB. Replace the control PWB. Defective harness between PF main PWB (YC5) and paper feeder interface connector, 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 main- PWB. Replace the PF main PWB (Refer to the service manual for the paper feeder).
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). Replace 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.