• Code: 2620
• Description: PF drive motor 3 error (paper feeder 3)
  When the PF drive motor is driven, error signal is detected continuously for 2 s.
• Causes: Connector cable or poor contact in the connector. Drive transmission system of the PF drive motor. PF drive motor. PF main PWB.
• Remedy: Connector cable or poor contact in the connector Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. PF drive motor 3 and PF main PWB (YC6)
  Drive transmission system of the PF drive motor Check if the rollers and gears rotate smoothly. If not, grease the bushes and gears. Check for broken gears and replace if any.
  PF drive motor Replace the PF drive motor 3.
  PF main PWB Replace the PF main PWB (Refer to the service manual for the paper feeder).

• Code: 2630
• Description: PF drive motor 4 error (paper feeder 4)
  When the PF drive motor is driven, error signal is detected continuously for 2 s.
• Causes: Connector cable or poor contact in the connector. Drive transmission system of the PF drive motor. PF drive motor. PF main PWB.
• Remedy: Connector cable or poor contact in the connector Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. PF drive motor 4 and PF main PWB (YC6)
  Drive transmission system of the PF drive motor Check if the rollers and gears rotate smoothly. If not, grease the bushes and gears. Check for broken gears and replace if any.
  PF drive motor Replace the PF drive motor 4.
  PF main PWB Replace the PF main PWB (Refer to the service manual for the paper feeder).

• Code: 3100
• Description: Scanner carriage error
  The home position is not correct when the power is turned on, at the end of a reading process of the table and document processor.
• Causes: Image scanner motor. Home position sensor. CCD PWB. Control PWB.
• Remedy: Image scanner motor 1. Move the scanner by the hand to check whether it is unusually difficult to move. 2. Check that the scanner driving belt is not disengaged. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Image scanner motor and control PWB (YC1002) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the image scanner motor.
  Home position sensor 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Home position sensor and CCD PWB (YC3) CCD PWB and control PWB (YC1000) 3. Replace the home position sensor.
  CCD PWB Replace the image scanner unit and execute U411.
  Control PWB Replace the control PWB and check for correct operation.

• Code: 3200
• Description: Exposure lamp error
  When a lamp is made to turn on one side at a time, the white standard data at the time of an initial is lower than a rated value.
• Causes: LED PWB. CCD PWB. Control PWB.
• Remedy: LED PWB 1. Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. LED PWB and CCD PWB (YC2) CCD PWB and control PWB (YC1000) 2. Replace the image scanner unit.
  CCD PWB Replace the image scanner unit and execute U411.
  Control PWB Replace the control PWB and check for correct operation.

• Code: 3500
• Description: Communication error between scanner and ASIC
  An error code is detected.
• Causes: CCD PWB. Control PWB.
• Remedy: CCD PWB 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CCD PWB and control PWB (YC1000) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the image scanner unit and execute U411.
  Control PWB Replace the control PWB and check for correct operation.

• Code: 4000
• Description: Polygon motor steady-state error
  After Polygon motor is stabilized, the ready signal is at the H level for 20 s continuously.
• Causes: Polygon motor (LSU). Control PWB.
• Remedy: Polygon motor (LSU) 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Laser scanner unit and control PWB (YC15) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the laser scanner unit.
  Control PWB 1. Check the control software and upgrade to the latest, if necessary. 2. Replace the control PWB and check for correct operation.

• Code: 4200
• Description: BD steady-state error
  The BD signal is not detected.
• Causes: PD PWB (LSU). Control PWB.
• Remedy: PD PWB (LSU) 1. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. Laser scanner unit and control PWB (YC16) 2. If the FCC wiring is disconnected, shorted or grounded, replace the FCC wiring. 3. Replace the laser scanner unit.
  Control PWB 1. Check the control software and upgrade to the latest, if necessary. 2. Replace the control PWB and check for correct operation.

• Code: 5100
• Description: Chager current error When the current value measured at the time of potential adjustment is less than 20 mcA. The error of the charge current before toner installation. The error of the charge current before printing.
• Causes: Connector cable or poor contact in the connector. High voltage PWB. Control PWB.
• Remedy: Connector cable or poor contact in the connector Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. Chager unit and high voltage PWB High voltage PWB and control PWB (YC19)
  High voltage PWB Replace the high voltage PWB and check for correct operation.
  Control PWB Replace the control PWB and check for correct operation.