• Code: C8340
• Description: Centerfold staple motor problem (optional center-folding unit of 3000sheet document finisher)
  Jam 89 is indicated.
• Causes: Poor contact in the connector terminals.
  Defective centerfold staple motor.
  Defective PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC9 on the centerfold main PWB and the connector of the centerfold staple motor, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective centerfold staple motor. Replace the centerfold staple motor.
  Defective PWB. Replace the centerfold main PWB or finisher main PWB and check for correct operation.

• Code: C8350
• Description: Centerfold side registration motor 1 problem (optional center-folding unit of 3000-sheet document finisher)
  The home position is not detected when initial operation even if 1 s passed.
  Roller motor problem (optional document finisher)
  The roller sensor does not turn on/off within specified time of the roller motor turning on.
• Causes: Poor contact in the connector terminals.
  Defective centerfold side registration motor 1.
  Defective PWB.
  The roller sensor, roller motor connector makes poor contact.
  Defective roller sensor.
  Defective roller motor.
  Defective finisher main PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC7 on the centerfold main PWB and the connector of centerfold side registration motor 1, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective centerfold side registration motor 1. Replace centerfold side registration motor 1.
  Defective PWB. Replace the centerfold main PWB or finisher main PWB and check for correct operation.
  The roller sensor, roller motor connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  Defective roller sensor. Replace the roller sensor.
  Defective roller motor. Replace the roller motor.
  Defective finisher main PWB. Replace the finisher main PWB and check for correct operation.

• Code: C8360
• Description: Centerfold main motor problem (optional center-folding unit of 3000sheet document finisher)
  The motor lock signal is detected above 1 s during driving the centerfold main motor.
  Slide motor problem (optional document finisher)
  The slide sensor does not turn on/off within specified time of the slide motor turning on.
• Causes: Poor contact in the connector terminals.
  Defective centerfold main motor.
  Defective PWB.
  The slide sensor, slide motor connector makes poor contact.
  Defective slide sensor
  Defective slide motor.
  Defective finisher main PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC12 on the centerfold main PWB and the connector of the centerfold main motor, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective centerfold main motor. Replace the centerfold main motor.
  Defective PWB. Replace the centerfold main PWB or finisher main PWB and check for correct operation.
  The slide sensor, slide motor connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  Defective slide sensor. Replace the slide sensor.
  Defective slide motor. Replace the slide motor.
  Defective finisher main PWB. Replace the finisher main PWB and check for correct operation.

• Code: C8440
• Description: Sensor adjusting problem (optional document finisher)
  The sensor cannot be adjusted within the specified range.
• Causes: The paper entry sensor connector makes poor contact.
  Defective paper entry sensor.
  The optical path of the paper entry sensor is blocked by foreign matter.
  Defective finisher main PWB.
• Remedy: The paper entry sensor connector makes poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
  Defective paper entry sensor. Replace the paper entry sensor and check for correct operation.
  The optical path of the paper entry sensor is blocked by foreign matter. Remove the foreign matter.
  Defective finisher main PWB. Replace the finisher main PWB and check for correct operation.

• Code: C8460
• Description: EEPROM problem (optional document finisher)
  Reading from or writing to EEPROM cannot be performed.
• Causes: Defective EEPROM or finisher main PWB.
• Remedy: Replace the finisher main PWB and check for correct operation.

• Code: C8500
• Description: Mailbox communication error (optional mailbox of 3000-sheet document finisher)
  Communication with the mailbox is not possible although the connection is detected.
• Causes: Poor contact in the connector terminals.
  Defective PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of the connector of the mailbox and the connector YC7 on the finisher main PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective PWB. Replace the mailbox main PWB or finisher main PWB and check for correct operation.

• Code: C8510
• Description: Mailbox drive motor problem (optional mailbox of 3000-sheet document finisher) The motor lock signal is detected above 500 ms during driving the mailbox drive motor.
• Causes: Poor contact in the connector terminals.
  Defective mailbox drive motor
  Defective PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC5 on the mailbox main PWB and the connector of the mailbox drive motor, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective mailbox drive motor. Replace the mailbox drive motor.
  Defective PWB. Replace the mailbox main PWB or finisher main PWB and check for correct operation.

• Code: C8800
• Description: Document finisher communication error (optional 3000-sheet document finisher)
  A communication error from document finisher is detected 10 times in succession.
• Causes: Poor contact in the connector terminals.
  Defective PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector on the engine PWB and the connector on the finisher main PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective PWB. Replace the finisher main PWB or engine PWB and check for correct operation.