Laser Scanner Unit M Eeprom Error; Laser Scanner Unit Y Eeprom Error; Punch Motor Error 1 - Kyocera FS-C8600DN Service Manual

Code Contents
7943 Laser scanner unit M
EEPROM error
Mismatch of reading data from
two locations occurs 8 times
successively.
Mismatch between writing
data and reading data occurs
8 times successively.
7944 Laser scanner unit Y
EEPROM error
Mismatch of reading data from
two locations occurs 8 times
successively.
Mismatch between writing
data and reading data occurs
8 times successively.
8010

Punch motor error 1

When the punch motor is
driven, punch home position
sensor does not turn on within
200 ms.
Causes
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. APC PWB M and LSU relay PWB (YC8)
LSU relay PWB (YC2) and engine PWB
(YC11)
Defective APC Replace the laser scanner unit (see page 1-
PWB M. 5-17).
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. APC PWB Y and LSU relay PWB (YC12)
LSU relay PWB (YC2) and engine PWB
(YC11)
Defective APC Replace the laser scanner unit (see page 1-
PWB Y. 5-17).
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector (4000-sheet Punch motor and punch PWB (YC4)
finisher). Punch home position sensor and punch
PWB (YC8)
Punch PWB (YC1) and DF main PWB (YC7)
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector (1000-sheet Punch motor and punch PWB (YC4)
finisher). Punch home position sensor and punch
PWB (YC8)
Punch PWB (YC1) and DF main PWB (YC8)
Defective punch Replace the punch home position sensor.
home position sen-
sor.
Defective punch Replace the punch motor.
motor.
Defective PWB. Replace the punch PWB or DF main PWB
and check for correct operation.
1-4-70
Check procedures/
corrective measures
2MN/2N1