Kyocera KM-4230 - Page 422

2A3/4
3-5-3
Defective en-
gine ROM IC.
Defective main
PCB.
Defective main
PCB.
Poor contact of
the connector
terminals.
Defective main
PCB or printer
board.
Replace the engine ROM IC
on the main PCB and check
for correct operation.
Replace the main PCB and
check for correct operation.
Replace the main PCB and
check for correct operation.
Check the connection of con-
nector CN4 on the main PCB
and the connector on the
printer board. Repair or re-
place if necessary.
Replace the main PCB or
printer board and check for
correct operation.
Code Contents
Remarks
Causes
Check procedures/
corrective measures
Communication problem
between the engine PCB
and main PCB
• There is no reply after 20
retries at communication.
Scanner communication
problem
• There is no reply after 5 re-
tries at communication.
Printer board communica-
tion problem*
2
•There is no reply after 20
retries at communication.
C022
C023
C024
*2: Optional.