Description: Scanner network board communication problem • The scanner network board does not respond.
Causes: Poor contact in the connector ter-minals. Defective main PCB or scanner network board.
Remedy: Check the connection of connector. Repair or replace if necessary. Replace the main PCB or scanner network board and check for correct operation.
Code: C0280
Description: Fax control PCB communication problem • Communication between the fax control PCB and the main PCB of the machine cannot be performed normally.
Causes: Poor contact in the connector ter-minals. 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: C0410
Description: DP communication problem • Communication fails five times suc-cessively.
Remedy: Check the installation state of the DP and adjust it if it is not properly installed. Replace the engine PCB or DP driver PCB and check for correct operation.
Code: C0420
Description: First paper feeder communication problem • Communication fails five times successively.
Causes: Paper feeder in-stalled incorrectly. Defective engine PCB or drawer main PCB.
Remedy: Check the installation state of the paper feeder and adjust it if it is not properly installed. Replace the engine PCB or drawer main PCB and check for correct operation.
Code: C0440
Description: Finisher communication problem • Communication fails five times successively.
Causes: Finisher installed incorrectly. Defective engine PCB or finisher main PCB.
Remedy: Check the installation state of the finisher and adjust it if it is not properly installed. Replace the engine PCB or finisher main PCB and check for correct operation.
Code: C0500
Description: Second paper feeder communication problem • Communication fails five times successively.
Causes: Paper feeder in-stalled incorrectly. Defective engine PCB or drawer main PCB.
Remedy: Check the installation state of the paper feeder and adjust it if it is not properly installed. Replace the engine PCB or drawer main PCB and check for correct operation.