Kyocera KM-3050 Service Manual page 153

Code
C8510 Mail box drive motor problem
(optional mail box of 3000-sheet doc-
ument finisher)
The motor lock signal is detected above
500 ms during driving the mail box drive
motor.
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.
C8900 Backup memory data problem
(optional 3000-sheet document fin-
isher)
Read and write data does not match.
C8910 Backup memory data problem
(optional punch unit of 3000-sheet
document finisher)
Read and write data does not match.
C8920 Backup memory data problem
(optional mail box of 3000-sheet doc-
ument finisher)
Read and write data does not match.
C8930 Backup memory data problem
(optional centerfold unit of 3000-sheet
document finisher)
Read and write data does not match.
Contents
Causes Check procedures/corrective measures
Poor contact in the Check the connection of connector YC2 on
connector termi- the mail box main PWB and the connector of
nals. the mail box drive motor, and the continuity
across the connector terminals. Repair or
replace if necessary.
Defective mail box Replace the mail box drive motor.
drive motor.
Defective PWB. Replace the mail box main PWB or finisher
main PWB and check for correct operation.
Poor contact in the Check the connection of connector on the
connector termi- finisher main PWB and the connector on the
nals. 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.
Poor contact in the Check the connection of connector on the
connector termi- finisher main PWB and the connector on the
nals. engine PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective finisher Replace the finisher main PWB and check
main PWB. for correct operation.
Poor contact in the Check the connection of connector on the
connector termi- punch PWB and the connector YC4 on the
nals. finisher main PWB, and the continuity
across the connector terminals. Repair or
replace if necessary.
Defective punch Replace the punch PWB and check for cor-
PWB. rect operation.
Poor contact in the Check the connection of connector on the
connector termi- mail box main PWB and the connector YC7
nals. on the finisher main PWB, and the continuity
across the connector terminals. Repair or
replace if necessary.
Defective mail box Replace the mail box main PWB and check
main PWB. for correct operation.
Poor contact in the Check the connection of connector on the
connector termi- centerfold main PWB and the connector
nals. YC5 on the finisher main PWB, and the con-
tinuity across the connector terminals.
Repair or replace if necessary.
Defective center- Replace the centerfold main PWB and
fold main PWB. check for correct operation.
2GN/2GP/2GR
Remarks
1-4-41