Description: Memory input interface problem • Reading-in of an image does not complete within 10 s of the start of image transmission.
Causes: Defective main PCB.
Remedy: Replace the main PCB and check for correct operation.
Code: C063
Description: DMA problem • DMA transmission of compressed, decompressed, rotated, relocated or blanked-out image data does not complete within the specified period of time.
Causes: Defective main PCB.
Remedy: Replace the main PCB and check for correct operation.
Code: C080
Description: Image processing problem • JAM05 is detected twice.
Causes: Defective engine PCB.
Remedy: Replace the engine PCB and check for correct operation.
Code: C200
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 main 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: C310
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.
Code: C320
Description: Exposure lamp problem • In indicator check before starting copying, the average value in scanning of the shading plate with the CCD is 128 or more.
Causes: Poor contact of the connector terminals. Defective exposure lamp or inverter board. Defective engine PCB. Incorrect shading position.
Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the exposure lamp or inverter board. Replace the engine PCB and check for correct operation. Adjust the position of the contact glass (shading plate). If the problem still occurs, replace the scanner home position switch.