Description: Total counts problem • A checksum error is detected in the main and sub backup memories for the total counters.
Causes: Data damage of EEPROM.
Remedy: Data damage of EEPROM. Contact the Service Administrative Division.
Code: 0240
Description: Main controller PWB communication problem • The main controller PWB does not respond 120 seconds after the power is turned on.
Causes: Poor contact in the connector terminals. DIMM installed incorrectly. Defective engine interface PWB or main controller PWB.
Remedy: Poor contact in the connector terminals. Check the connection of connector YC6 on the engine interface PWB and the connector on the main controller PWB. Repair or replace if necessary. DIMM installed incorrectly. Check the connection. Repair or replace if necessary. Defective engine interface PWB or main controller PWB. Replace the engine interface PWB or main controller and check for correct operation.
Code: 0310
Description: LPH drive PWB communication error • When an error in communication with the CPU for LPH control on the LPH drive PWB is detected, transmission/ reception is not normally completed even after 10 times of retry.
Causes: Poor contact in the connector terminals. Defective LPH drive PWB. Defective engine controller PWB.
Remedy: Poor contact in the connector terminals. Check the connection of connector YC31 on the engine controller PWB and the connector YC2 on the LPH drive PWB. Repair or replace if necessary. Defective LPH drive PWB. Replace the LPH drive PWB. Defective engine controller PWB. Replace the engine controller PWB.
Code: 0420
Description: Paper feeder communication error 1 (upper of optional paper feeder PF- 640) • Reception is not normally completed even after 40 times of retry at startup or 5 times of retry in normal operation.
Causes: Poor contact in the connector terminals. Defective engine controller PWB. Defective upper of optional paper feeder PF-640.
Remedy: Poor contact in the connector terminals. Check the connection of connector YC27 on the engine controller PWB. Repair or replace if necessary. Defective engine controller PWB. Replace the engine controller PWB. Defective upper of optional paper feeder PF-640. Replace the paper feeder with another unit and check the operation. If the operation is normal, replace or repair the upper of the optional paper feeder PF-640.
Code: 0440
Description: Document finisher communication problem (optional document finisher) • Reception is not normally completed even after 40 times of retry at startup or 5 times of retry in normal operation.
Causes: Poor contact in the connector terminals. Defective engine controller PWB. Defective optional document finisher
Remedy: Poor contact in the connector terminals. Check the connection of connector YC26 on the engine controller PWB. Repair or replace if necessary. Defective engine controller PWB. Replace the engine controller PWB. Defective optional document finisher. Replace the document finisher with another unit and check the operation. If the operation is normal, replace or repair the optional document finisher.
Code: 0500
Description: Paper feeder communication error 1 (lower of optional paper feeder PF- 640) • Reception is not normally completed even after 40 times of retry at startup or 5 times of retry in normal operation.
Causes: Poor contact in the connector terminals. Defective engine controller PWB. Defective lower of optional paper feeder PF-640.
Remedy: Poor contact in the connector terminals. Check the connection of connector YC27 on the engine controller PWB. Repair or replace if necessary. Defective engine controller PWB. Replace the engine controller PWB. Defective lower of optional paper feeder PF-640. Replace the paper feeder PF-640 with another unit and check the operation. If the operation is normal, replace or repair the lower of the optional paper feeder PF-640.