Kyocera DF-770 Service Manual page 52

Code Contents
8800 Document finisher commu-
nication error
Communication with the docu-
ment finisher is not possible.
8900 Document finisher backup
error
Read and write data does not
match 3 times in succession.
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 (4000-sheet DF main PWB (YC4) and engine PWB
finisher). (YC18)
Reinsert the connector. Also check for conti-
Defective connec-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector (1000-sheet DF main PWB (YC7) and engine PWB
finisher). (YC18)
Defective PWB. Replace the DF main PWB or the engine
PWB and check for correct operation.
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 DF main PWB (YC4) and engine PWB
finisher). (YC18)
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 DF main PWB (YC7) and engine PWB
finisher). (YC18)
Improper installa- Check the installation of the EEPROM and
tion EEPROM. remedy if necessary.
Defective DF main Replace the DF main PWB and check for
PWB. correct operation.
1-4-20
3NC/3NB/3NK
Check procedures/
corrective measures