Kyocera TASKalfa 420i - Page 202

2KR/2KS
1-4-44
C8440 Sensor adjusting problem (optional
document finisher)
The sensor cannot be adjusted within
the specified range.
The paper entry
sensor connector
makes poor con-
tact.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
Defective paper
entry sensor.
Replace the paper entry sensor and check
for correct operation.
The optical path of
the paper entry
sensor is blocked
by foreign matter.
Remove the foreign matter.
Defective finisher
main PWB.
Replace the finisher main PWB and check
for correct operation.
C8460 EEPROM problem (optional document
finisher)
Reading from or writing to EEPROM
cannot be performed.
Defective
EEPROM or fin-
isher main PWB.
Replace the finisher main PWB and check
for correct operation.
C8500 Mailbox communication error
(optional mailbox of 3000-sheet docu-
ment finisher)
Communication with the mailbox is not
possible although the connection is
detected.
Poor contact in the
connector termi-
nals.
Check the connection of the connector of
the mailbox and the connector YC7 on the
finisher main PWB, and the continuity
across the connector terminals. Repair or
replace if necessary.
Defective PWB. Replace the mailbox main PWB or finisher
main PWB and check for correct operation.
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 YC5 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
error (optional 3000-sheet document
finisher)
A communication error from document
finisher is detected 10 times in succes-
sion.
Poor contact in the
connector termi-
nals.
Check the connection of connector on the
engine PWB and the connector on the fin-
isher main 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 Finisher backup problem (optional
3000-sheet document finisher)
Read and write data does not match 3
times in succession.
Poor contact in the
connector termi-
nals.
Check the connection of connector on the
finisher main PWB and the connector of the
machine, and the continuity across the con-
nector terminals. Repair or replace if neces-
sary.
EEPROM installed
incorrectly.
Install EEPROM correctly.
Defective finisher
main PWB.
Replace the finisher main PWB and check
for correct operation.
Code Contents
Remarks
Causes Check procedures/corrective measures