• Code: C0830
• Description: Fax control PWB flash program area checksum error
  A checksum error occurred with the program of the fax control PWB.
• Causes: Defective fax software.
  Defective fax control PWB.
• Remedy: Defective fax software. Install the fax software.
  Defective fax control PWB. Replace the fax control PWB and verify the operation.

• Code: C0840
• Description: Faults of RTC
  The time is judged to go back based on the comparison of the RTC time and the current time or five years or more have passed.
• Causes: Defective main PWB.
  The battery is disconnected from the main PWB.
• Remedy: Defective main PWB. Replace the main PWB and check for correct operation.
  The battery is disconnected from the main PWB. Check visually and remedy if necessary.

• Code: C0870
• Description: Fax control PWB to main PWB high capacity data transfer problem
  High-capacity data transfer between the fax control PWB and the scanner MIP PWB was not normally performed even if the data transfer was retried 10 times.
• Causes: Poor contact in the connector terminals.
  Defective PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector on the interface PWB and the connector on the fax control PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective PWB. Replace the fax control PWB or main PWB and check for correct operation.

• Code: C0920
• Description: Fax file system error
  The backup data is not retained for file system abnormality of flash memory of the fax control PWB.
• Causes: Defective fax control PWB.
• Remedy: Replace the fax control PWB and verify the operation.

• Code: C1010
• Description: Lift motor 1 error
  After cassette 1 is inserted, lift switch 1 does not turn on within 12 s. This error is detected four times successively.
• Causes: Poor contact in the connector terminals.
  Broken gears or couplings of lift motor 1.
  Defective lift motor 1.
  Poor contact in the connector terminals.
  Defective lift switch 1.
  Defective engine PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector of lift motor 1 and the connector YC23 on the engine PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Broken gears or couplings of lift motor 1. Replace lift motor 1.
  Defective lift motor 1. Check for continuity across the coil. If none, replace lift motor 1.
  Poor contact in the connector terminals. Check the connection of connector of lift switch 1 and the connector YC23 on the engine PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective lift switch 1. Check if YC23-B12 on the engine PWB goes low when lift switch 1 is turned off. If not, replace lift switch 1.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: C1020
• Description: Lift motor 2 error
  After cassette 2 is inserted, lift switch 2 does not turn on within 12 s. This error is detected four times successively.
• Causes: Poor contact in the connector terminals.
  Broken gears or couplings of lift motor 2.
  Defective lift motor 2.
  Poor contact in the connector terminals.
  Defective lift switch 2.
  Defective engine PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector of lift motor 2 and the connector YC23 on the engine PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Broken gears or couplings of lift motor 2. Replace lift motor 2.
  Defective lift motor 2. Check for continuity across the coil. If none, replace lift motor 2.
  Poor contact in the connector terminals. Check the connection of connector of lift switch 2 and the connector YC23 on the engine PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective lift switch 2. Check if YC23-A5 on the engine PWB goes low when lift switch 2 is turned off. If not, replace lift switch 2.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: C1030
• Description: PF lift motor 1 error (optional paper feeder)
  After cassette 3 is inserted, PF lift switch 1 does not turn on within 12 s. This error is detected four times successively.
• Causes: Poor contact in the connector terminals.
  Broken gears or couplings of PF lift motor 1.
  Defective PF lift motor 1.
  Defective PF lift switch 1.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC22 on the engine PWB and the connector on the PF main PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Broken gears or couplings of PF lift motor 1. Replace PF lift motor 1.
  Defective PF lift motor 1. Check for continuity across the coil. If none, replace PF lift motor 1.
  Defective PF lift switch 1. Check if YC1-5 on the PF main PWB goes low when PF lift switch 1 is turned off. If not, replace PF lift switch 1.

• Code: C1040
• Description: PF lift motor 2 error (optional paper feeder)
  After cassette 4 is inserted, PF lift switch 2 does not turn on within 12 s. This error is detected four times successively.
• Causes: Poor contact in the connector terminals
  Broken gears or couplings of PF lift motor 2.
  Defective PF lift motor 2.
  Defective PF lift switch 2.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC22 on the engine PWB and the connector on the PF main PWB, and the continuity across the connector terminals. Repair or replace if necessary.
  Broken gears or couplings of PF lift motor 2. Replace PF lift motor 2.
  Defective PF lift motor 2. Check for continuity across the coil. If none, replace PF lift motor 2.
  Defective PF lift switch 2. Check if YC1-7 on the PF main PWB goes low when PF lift switch 2 is turned off. If not, replace PF lift switch 2.