Self-Diagnosis; Self-Diagnostic Function; Self-Diagnostic Codes - Kyocera Mita KM-1530 Service Manual

2AV/X

1-5-2 Self-diagnosis

(1) Self-diagnostic function

This unit is equipped with a self-diagnostic function. When a problem is detected, copying is disabled. On the 20 cpm copier,
the problem is displayed as a code consisting of "C" followed by a number between 011 and 821, indicating the nature of the
problem. A message is also displayed requesting the user to call for service.
On the 15 cpm copier, "C" and a number between 011 and 821 altenates, indicating the nature of the problem.
After removing the problem, the self-diagnostic function can be reset by turning safety switch 1, 2 or 3* off and back on.
*Optional for the 15 cpm copier.
(2) Self diagnostic codes
Code
C011 Backup memory data problem
• Data in the specified area of the
backup memory does not match the
specified values.
C021 Operation unit PCB communication
problem (20 cpm copier only)
• There is no reply after 20 retries at
communication.
1-5
C034 Finisher* communication problem
• Communication errors from the
communication microcomputer on the
main PCB:
No communication: there is no reply
after 3 retries.
Abnormal communication: a
communication error (parity or
checksum error) is detected five times
in succession.
C040 DIMM* problem
• Information on DIMM cannot be read
out correctly at power-on.
C041 Bitmap problem
• There is a problem with the data or
address bus of the bitmap DRAM.
C043 DMA problem
• DMA transmission of compressed,
decompressed, rotated, relocated or
blanked-out image data does not
complete within the specified period
of time.
*: Optional
1-5-12
Contents
**: Optional for the 15 cpm copier only.
Causes Check procedures/corrective measures
Defective main Replace the main PCB and check for
PCB. correct operation.
Replace the main PCB and check for
Defective main
PCB. correct operation.
Poor contact of Check the connection of connectors CN17
the connector and CN18 on the main PCB and the
terminals. finisher main PCB, and the continuity
across the connector terminals. Repair or
replace if necessary.
Defective copier Replace the main PCB and check for
main PCB. correct operation.
Defective finisher Replace the finisher main PCB and check
main PCB. for correct operation.
Poor contact of Check the insertion of the memory board**.
the memory
board**.
Poor contact of Check the insertion of the DIMM into
the DIMM. connector CN2 on the memory board (for
the 15 cpm copier).
Check the insertion of the DIMM into
connector CN34 on the main PCB (for the
20 cpm copier).
Defective main Replace the main PCB and check for
PCB. correct operation.
Remarks