Self-Diagnosis; Self-Diagnostic Function; Self Diagnostic Codes - Kyocera FaxSystem(M) Service Manual

1-5 Troubleshooting
1-5-1

Self-diagnosis

(1) Self-diagnostic function

This unit is equipped with a self-diagnostic function. When a problem is detected, printing is disabled and the problem dis-
played as a code consisting of C followed by a number, indicating the nature of the problem. A message is also displayed
requesting the user to call for service.
After removing the problem, the self-diagnostic function can be reset by turning front cover/feed cover switch off and back
on.

(2) Self diagnostic codes

Code
C0030 Fax control PWB system problem
Processing with the fax software was
disabled due to a hardware or software
problem.
C0070 Fax control PWB incompatibility
detection problem
Fax software is not compatible with main
software.
C0700 CF error for backup
Optional fax backup kit (CF) is not suit-
able as backup.
C0830 Flash ROM program area checksum
error
A checksum error occurred with the pro-
gram in the Flash ROM on the fax con-
trol PWB.
C0870 Fax control PWB to main PWB high
capacity data transfer problem
High-capacity data transfer between the
fax control PWB and the main PWB of
the machine was not normally performed
even if the data transfer was retried the
specified times.
C0880 Fax control PWB program archive
problem
When power is turned on, the com-
pressed program in the Flash ROM on
the fax control PWB was not success-
fully decompressed.
C0920 Fax file system error
The backup data is not retained for file
system abnormality of flash memory of
the fax control PWB.
F090 Communication error between main
PWB and Fax control PWB
A communication error between fax con-
trol PWB and main PWB is detected.
Contents
Causes Check procedures/corrective measures
Defective fax con- Replace the fax control PWB and verify the
trol PWB. operation.
FAX and the Use the FAX control PWB that is designed
machine are not for use with the machine.
compatible.
CF installed incor- Install CF correctly.
rectly.
Defective CF. Run the maintenance item U933 to initialize
the CF (see P.1-3-28).
Defective fax con- Upgrade the fax control PWB software (see
trol PWB. P.1-6-1). If the problem still remains, replace
the fax control PWB and check for correct
operation.
Poor contact in the Check the connection of connector YC1 on
connector termi- the fax control PWB and YC4 on the inter-
nals. face PWB, connection of connector YC30
on the main PWB and YC6 on the interface
PWB and the continuity across the connec-
tor terminals. Repair or replace if necessary.
Defective fax con- Replace the fax control PWB or main PWB
trol PWB or main and check for correct operation.
PWB.
Defective fax con- Replace the fax control PWB and check for
trol PWB. correct operation.
Defective fax con- Turn the main power switch off and then
trol PWB. back on again. If the problem still remains,
replace the fax control PWB and verify the
operation.
Defective main Turn the main power switch off and then
PWB. back on again. If the problem still remains,
replace the main PWB.
Remarks
3KH-2
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