Kyocera KM-3035 Service Manual page 196

2FD/2FF/2FG
Code
C0250 Scanner network board* communi-
cation problem
• There is no reply after 20 retries at
communication.
C0280 Fax control PCB* communication
problem
• There is no reply after 20 retries at
communication.
C0320 Energy save communication
problem
• Communication errors from the com-
munication microcomputer on the
main PCB.
No communication: there is no reply
after 5 retries.
Abnormal communication: a commu-
nication error (parity or checksum er-
ror) is detected five times in
succession.
C0420 Large paper deck*/paper feeder*
communication problem
• Communication errors from the com-
munication microcomputer on the
main PCB.
No communication: there is no reply
after 5 retries.
Abnormal communication: a commu-
nication error (parity or checksum er-
ror) is detected five times in
succession.
C0440 Finisher* communication problem
• Communication errors from the com-
munication microcomputer on the
main PCB.
No communication: there is no reply
after 5 retries.
Abnormal communication: a commu-
nication error (parity or checksum er-
ror) is detected five times in succes-
sion.
1-5-22
Contents
Causes Check procedures/corrective measures
Poor contact in Check the connection of connector YC46
the connector ter- on the main PCB and the connector on the
minals. memory PCB. Repair or replace if neces-
sary.
Defective main Replace the main PCB or scanner network
PCB or scanner board and check for correct operation.
network board.
Poor contact in Check the connection of connector YC44
the connector ter- on the main PCB and the connector on the
minals. memory PCB. Repair or replace if neces-
sary.
Defective main Replace the main PCB or fax control PCB
PCB or fax control and check for correct operation.
PCB.
Defective main Replace the main PCB and check for cor-
PCB. rect operation.
Poor contact in Check the connection of connectors CN3
the connector ter- on the main PCB and the connector on the
minals. deck main PCB/desk main PCB, and the
continuity across the connector terminals.
Repair or replace if necessary.
Defective main Replace the main PCB and check for cor-
PCB. rect operation.
Defective deck Replace the deck main PCB/desk main
main PCB/desk PCB and check for correct operation.
main PCB.
Poor contact in Check the connection of connectors YC4,
the connector ter- YC5 on the main PCB and CN2 on the fin-
minals. isher main PCB, and the continuity across
the connector terminals. Repair or replace
if necessary.
Defective main Replace the main PCB and check for cor-
PCB. rect operation.
Defective finisher Replace the finisher main PCB and check
main PCB. for correct operation.
Remarks
*: Optional