Developer Unit M Eeprom Error; Developer Unit Y Eeprom Error; Laser Scanner Unit K Eeprom Error; Laser Scanner Unit C Eeprom Error - Kyocera FS-C8600DN Service Manual

Code Contents
7913 Developer unit M EEPROM
error
No response is issued from
the device in reading/writing
for 5 ms or more and this
problem is repeated five times
successively.
Mismatch of reading data from
two locations occurs 8 times
successively.
Mismatch between writing
data and reading data occurs
8 times successively.
7914 Developer unit Y EEPROM
error
No response is issued from
the device in reading/writing
for 5 ms or more and this
problem is repeated five times
successively.
Mismatch of reading data from
two locations occurs 8 times
successively.
Mismatch between writing
data and reading data occurs
8 times successively.
7941 Laser scanner unit K
EEPROM error
Mismatch of reading data from
two locations occurs 8 times
successively.
Mismatch between writing
data and reading data occurs
8 times successively.
7942 Laser scanner unit C
EEPROM error
Mismatch of reading data from
two locations occurs 8 times
successively.
Mismatch between writing
data and reading data occurs
8 times successively.
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. Developer unit M and front PWB (YC11)
Front PWB (YC2) and engine PWB (YC10)
Defective devel- Replace the developer unit M (see page 1-5-
oper unit M. 29).
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. Developer unit Y and front PWB (YC15)
Front PWB (YC2) and engine PWB (YC10)
Defective devel- Replace the developer unit Y (see page 1-5-
oper unit Y. 29).
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 K and LSU relay PWB (YC5)
LSU relay PWB (YC2) and engine PWB
(YC11)
Defective APC Replace the laser scanner unit (see page 1-
PWB K. 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 C and LSU relay PWB (YC10)
LSU relay PWB (YC2) and engine PWB
(YC11)
Defective APC Replace the laser scanner unit (see page 1-
PWB C. 5-17).
1-4-69
Check procedures/
corrective measures
2MN/2N1