Kyocera FS-C8520MFP Service Manual page 201

Code Contents
1800 Paper feeder communica-
tion error
A communication error is
detected 10 times in succes-
sion.
1900 Paper feeder EEPROM error
When writing the data, the
write data and the read data is
not continuously in agreement
4 times.
Transfer belt unit EEPROM
1950
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 eight
times successively.
Mismatch between writing
data and reading data occurs
eight times successively.
Developer motor K steady-
2101
state error
The rated speed signal
detected the stability OFF
continuously for 1 s after the
developer motor K stabilizes.
Causes
Improper installa- Follow the installation instruction carefully
tion of the paper again.
feeder.
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity of the connector cable. If necessary,
contact of the con- replace the cable.
nector. PF main PWB (YC3) and engine PWB
(YC20)
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-32).
Defective PF main Replace the PF main PWB (Refer to the ser-
PWB. vice manual of the paper feeder).
Defective PF main Replace the PF main PWB (Refer to the ser-
PWB. vice manual of the paper feeder).
Device damage of Contact the Service Administrative Division.
EEPROM.
Defective transfer Replace the transfer PWB and check for
PWB. correct operation.
Device damage of Contact the Service Administrative Division.
EEPROM.
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity of the connector cable. If necessary,
contact in the con- replace the cable.
nector. Developer motor K and engine PWB (YC4)
Defective drive Check if the rollers and gears rotate
transmission sys- smoothly. If not, grease the bushings and
tem. gears. Check for broken gears and replace if
necessary.
Defective motor. Replace the Developer motor K.
Defective PWB. Replace the engine PWB and check for cor-
rect operation (see page 1-5-32).
1-4-13
Check procedures/
corrective measures
2MY/2MZ