• Code: C0860
• Description: Fax control PCB software switch checksum error
  •A checksum error occurred with the software switch value of the fax control PCB.
• Causes: Defective fax software. Defective fax control PCB.
• Remedy: Install the fax software to Ver. 2.xx or later. Replace the fax control PCB and check for correct operation.

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

• Code: C0880
• Description: Fax control PCB program archive problem
  •When power is turned on, the compressed program in the Flash ROM on the fax control PCB was not successfully decompressed.
• Causes: Defective fax control PCB.
• Remedy: Replace the fax control PCB and check for correct operation.

• Code: C0890
• Description: Fax control PCB CG font archive problem
  • When power is turned on, the compressed CG font in the Flash ROM on the fax control PCB was not successfully decompressed.
• Causes: Defective fax control PCB.
• Remedy: Replace the fax control PCB and check for correct operation.

• Code: C0900
• Description: Fax software incompatibility detection problem
  • Version of fax software is not compatible with that of main software.
• Causes: Fax software version or main software is earlier.
• Remedy: Check the version of the fax software and the main software, upgrade the version to the compatible software.

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

• Code: C2000
• Description: Drive motor problem
  • LOCK ALM signal remains high for 1 s, 1 s after the drive motor has turned on.
• Causes: Poor contact in the drive motor connector terminals. Defective drive motor rotation control circuit. Defective drive transmission system.
• Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the drive motor. Check if the rollers and gears rotate smoothly. If not, grease the bushings and gears. Check for broken gears and replace if any.

• Code: C3100
• Description: Scanner carriage problem
  • The home position is not correct when the power is turned on or copying the document placed on the contact glass.
• Causes: Poor contact of the connector terminals. Defective scanner home position switch. Defective engine PCB. Defective scanner motor.
• Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the scanner home position switch. Replace the engine PCB and check for correct operation. Replace the scanner motor.