Kyocera TASKalfa 420i Service Manual page 201

Code
C8340 Centerfold staple motor problem
(optional center-folding unit of 3000-
sheet document finisher)
Jam 89 is indicated.
C8350 Centerfold side registration motor 1
problem (optional center-folding unit
of 3000-sheet document finisher)
The home position is not detected when
initial operation even if 1 s passed.
Roller motor problem (optional docu-
ment finisher)
The roller sensor does not turn on/off
within specified time of the roller motor
turning on.
C8360 Centerfold main motor problem
(optional center-folding unit of 3000-
sheet document finisher)
The motor lock signal is detected above
1 s during driving the centerfold main
motor.
Slide motor problem (optional docu-
ment finisher)
The slide sensor does not turn on/off
within specified time of the slide motor
turning on.
Contents
Causes Check procedures/corrective measures
Poor contact in the Check the connection of connector YC9 on
connector termi- the centerfold main PWB and the connector
nals. of the centerfold staple motor, and the conti-
nuity across the connector terminals. Repair
or replace if necessary.
Defective center- Replace the centerfold staple motor.
fold staple motor.
Defective PWB. Replace the centerfold main PWB or finisher
main PWB and check for correct operation.
Poor contact in the Check the connection of connector YC7 on
connector termi- the centerfold main PWB and the connector
nals. of centerfold side registration motor 1, and
the continuity across the connector termi-
nals. Repair or replace if necessary.
Defective center- Replace centerfold side registration motor 1.
fold side registra-
tion motor 1.
Defective PWB. Replace the centerfold main PWB or finisher
main PWB and check for correct operation.
The roller sensor, Reinsert the connector. Also check for conti-
roller motor con- nuity within the connector cable. If none,
nector makes poor remedy or replace the cable.
contact.
Defective roller Replace the roller sensor.
sensor.
Defective roller Replace the roller motor.
motor.
Defective finisher Replace the finisher main PWB and check
main PWB. for correct operation.
Poor contact in the Check the connection of connector YC12 on
connector termi- the centerfold main PWB and the connector
nals. of the centerfold main motor, and the conti-
nuity across the connector terminals. Repair
or replace if necessary.
Defective center- Replace the centerfold main motor.
fold main motor.
Defective PWB. Replace the centerfold main PWB or finisher
main PWB and check for correct operation.
The slide sensor, Reinsert the connector. Also check for conti-
slide motor con- nuity within the connector cable. If none,
nector makes poor remedy or replace the cable.
contact.
Defective slide Replace the slide sensor.
sensor.
Defective slide Replace the slide motor.
motor.
Defective finisher Replace the finisher main PWB and check
main PWB. for correct operation.
Remarks
2KR/2KS
1-4-43