Kyocera KM-4230

2A3/4
3-5-2
Defective
memory copy
PCB 1.
Defective
memory copy
PCB 2.
Defective main
PCB.
Problem with
the backup
memory data.
Defective
backup RAM.
Poor contact of
the connector
terminals.
Defective main
PCB or opera-
tion unit main
PCB.
Replace memory copy PCB 1
and check for correct opera-
tion.
Replace memory copy PCB 2
and check for correct opera-
tion.
Replace the main PCB and
check for correct operation.
Turn safety switch 1 off and
back on and run maintenance
item U020 to set the contents
of the backup memory data
again.
If the C011 is displayed after
re-setting the backup memory
contents, replace the backup
RAM.
Check the connection of con-
nectors CN6 on the main PCB
and CN6 on the operation unit
main PCB, and the continuity
across the connector termi-
nals. Repair or replace if nec-
essary.
Replace the main PCB or op-
eration unit main PCB and
check for correct operation.
C001
C003
C010
C011
C021
Memory copy PCB 1 com-
munication problem
• Problems with data from
memory copy PCB 1.
Memory copy PCB 2 prob-
lem*
1
• Problems with data from
memory copy PCB 2.
RAM/ROM problem
• Read and write data does
not match.
Backup memory data
problem
• Data in the specified area
of the backup memory
does not match the speci-
fied values.
Operation unit main PCB
communication problem
• There is no reply after 20
retries at communication.
Self diagnostic codes
Code Contents
Remarks
Causes
Check procedures/
corrective measures
*1: 42 ppm: optional/52 ppm: standard.