Kyocera KM-3050 - Page 181

2GN/2GP/2GR-2
1-4-41
C8510 Mailbox drive motor problem
(optional mailbox of 3000-sheet docu-
ment finisher)
The motor lock signal is detected above
500 ms during driving the mailbox drive
motor.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC2 on
the mailbox main PWB and the connector of
the mailbox drive motor, and the continuity
across the connector terminals. Repair or
replace if necessary.
Defective mailbox
drive motor.
Replace the mailbox drive motor.
Defective PWB. Replace the mailbox main PWB or finisher
main PWB and check for correct operation.
C8800 Document finisher communication
problem (optional 3000-sheet docu-
ment finisher)
No communication: there is no reply
after 5 retries.
Abnormal communication: a communica-
tion error (parity or checksum error) is
detected five times in succession.
Poor contact in the
connector termi-
nals.
Check the connection of connector on the
finisher main PWB and the connector on the
engine PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective PWB. Replace the finisher main PWB or engine
PWB and check for correct operation.
C8900 Backup memory data problem
(optional 3000-sheet document fin-
isher)
Read and write data does not match.
Poor contact in the
connector termi-
nals.
Check the connection of connector on the
finisher main PWB and the connector on the
engine PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective finisher
main PWB.
Replace the finisher main PWB and check
for correct operation.
C8910 Backup memory data problem
(optional punch unit of 3000-sheet
document finisher)
Read and write data does not match.
Poor contact in the
connector termi-
nals.
Check the connection of connector on the
punch PWB and the connector YC4 on the
finisher main PWB, and the continuity
across the connector terminals. Repair or
replace if necessary.
Defective punch
PWB.
Replace the punch PWB and check for cor-
rect operation.
C8920 Backup memory data problem
(optional mailbox of 3000-sheet docu-
ment finisher)
Read and write data does not match.
Poor contact in the
connector termi-
nals.
Check the connection of connector on the
mailbox main PWB and the connector YC7
on the finisher main PWB, and the continuity
across the connector terminals. Repair or
replace if necessary.
Defective mailbox
main PWB.
Replace the mailbox main PWB and check
for correct operation.
C8930 Backup memory data problem
(optional centerfold unit of 3000-sheet
document finisher)
Read and write data does not match.
Poor contact in the
connector termi-
nals.
Check the connection of connector on the
centerfold main PWB and the connector
YC5 on the finisher main PWB, and the con-
tinuity across the connector terminals.
Repair or replace if necessary.
Defective center-
fold main PWB.
Replace the centerfold main PWB and
check for correct operation.
Code Contents
Remarks
Causes Check procedures/corrective measures