Kyocera KM-1820 Service Manual page 78

Code
C0220 Communication problem between
the main PWB and operation PWB
• There is no reply after 20 retries at
communication.
C0280 Communication problem between
the fax control PWB and main PWB
• Communication between the fax con-
trol PWB and the main PWB of the
machine cannot be performed nor-
mally.
C0800 Image processing problem
• JAM05 is detected twice.
C0830 Flash ROM program area checksum
error
• A checksum error occurred with the
program of the optional fax control
PWB.
C0870 Fax control PWB to main PWB high-
capacity data transfer problem
• High-capacity data transfer between
the optional 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 optional fax control PWB was
not successfully decompressed.
C0920 Fax file system error
• The backup data is not retained for
file system abnormality of flash
memory of the optional fax control
PWB.
Contents
Causes Check procedures/corrective measures
Poor contact in Check the connection of connectors YC13
the connector ter- on the main PWB and YC3 on the opera-
minals. tion PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective main Replace the main PWB or operation PWB
PWB or operation and check for correct operation.
PWB.
Poor contact in Check the connection of connector YC1 on
the connector ter- the fax control PWB and the connector
minals. YC1 on the main PWB. Repair or replace if
necessary.
Defective main Replace the main PWB or fax control PWB
PWB or fax con- and check for correct operation.
trol PWB.
Defective engine Replace the engine PWB and check for
PWB. correct operation.
Defective fax con- Replace the fax control PWB and check for
trol PWB. correct operation.
Poor contact in Check the connection of connector YC1 on
the connector ter- the fax control PWB and YC1 on the main
minals. PWB, and the continuity across the con-
nector terminals. Repair or replace if nec-
essary.
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- Replace the fax control PWB and check for
trol PWB. correct operation.
Remarks
2GM
1-5-9