Kyocera FS-C8500DN - Page 197

2KA
1-4-43
C7420 Transfer belt unit type mismatch
problem
Absence of the transfer belt unit is
detected.
Transfer belt unit
connector inserted
incorrectly.
Reinsert the transfer belt unit connector if
necessary.
Different type of
the transfer belt
unit is installed.
Install the correct transfer belt unit.
C7601 ID sensor 1 error
An abnormal value is detected in the
input data to ID sensor 1.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC8 on
the engine PWB and the continuity across
the connector terminals. Repair or replace if
necessary.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.
C7602 ID sensor 2 error
An abnormal value is detected in the
input data to ID sensor 2.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC8 on
the engine PWB and the continuity across
the connector terminals. Repair or replace if
necessary.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.
C7800 Broken external thermistor wire
An abnormal value is detected in the
input data to the outer temperature sen-
sor.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC1 on
the main front PWB and the continuity
across the connector terminals. Repair or
replace if necessary.
Defective PWB. Replace the main front PWB or engine PWB
and check for correct operation.
C7901 Drum K EEPROM error
No response is issued from the device in
reading/writing for 5 ms or more and this
problem is repeated five times succes-
sively.
Mismatch of reading data from two loca-
tions occurs eight times successively.
Mismatch between writing data and
reading data occurs eight times succes-
sively.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC3 on
the main front PWB and the continuity
across the connector terminals. Repair or
replace if necessary.
Defective drum
PWB K.
Replace the drum unit K (see page 1-5-26).
C7902 Drum C EEPROM error
No response is issued from the device in
reading/writing for 5 ms or more and this
problem is repeated five times succes-
sively.
Mismatch of reading data from two loca-
tions occurs eight times successively.
Mismatch between writing data and
reading data occurs eight times succes-
sively.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC5 on
the sub front PWB and the continuity across
the connector terminals. Repair or replace if
necessary.
Defective drum
PWB C.
Replace the drum unit C (see page 1-5-26).
Code Contents
Remarks
Causes Check procedures/corrective measures