Kyocera KM-4230 Service Manual page 438

Code Contents
C821 Finisher front stapler
problem*
• The front stapler home po-
sition sensor does not
change state from non-de-
tection to detection within
0.2 s of the start of front
stapler motor counterclock-
wise (forward) rotation.
• During initialization, the
front stapler home position
sensor does not change
state from non-detection to
detection within 0.6 s of the
start of front stapler motor
clockwise (reverse) rota-
tion.
C822 Finisher rear stapler prob-
lem* 2
• The rear stapler home po-
sition sensor does not
change state from non-de-
tection to detection within
0.2 s of the start of rear
stapler motor counterclock-
wise (forward) rotation.
• During initialization, the
rear stapler home position
sensor does not change
state from non-detection to
detection within 0.6 s of the
start of rear stapler motor
clockwise (reverse) rota-
tion.
*2: optional.
2
Causes
The front sta- Reinsert the connector. Also
pler connector check for continuity within the
makes poor connector cable. If none, rem-
contact. edy or replace the cable.
The front sta-
pler malfunc-
tions.
a) The front a) Remove the front stapler
stapler is cartridge, and check the car-
blocked with a tridge and the stapling section
staple. of the stapler.
b) The front b) Replace the front stapler
stapler is bro- and check for correct opera-
ken. tion.
Defective fin- Replace the finisher main PCB
isher main and check for correct opera-
PCB. tion.
The rear sta- Reinsert the connector. Also
pler connector check for continuity within the
makes poor connector cable. If none, rem-
contact. edy or replace the cable.
The rear sta-
pler malfunc-
tions.
a) The rear sta- a) Remove the rear stapler
pler is blocked cartridge, and check the car-
with a staple. tridge and the stapling section
b) The rear sta- of the stapler.
pler is broken. b) Replace the rear stapler
and check for correct opera-
tion.
Defective fin- Replace the finisher main PCB
isher main and check for correct opera-
PCB. tion.
Remarks
Check procedures/
corrective measures
2A3/4
3-5-19