2KZ/2K0
1-4-38
8830
Bridge communication
error (document finisher)
A communication error is
detected 10 times in succes-
sion.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Engine PWB (YC19) and DF relay PWB
(YC2)
DF relay PWB (YC4) and bridge PWB (YC5)
Defective bridge
PWB.
Replace the bridge PWB and check for cor-
rect operation.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-31).
8900
Backup memory data prob-
lem (document finisher)
Read and write data does not
match 3 times in succession.
Defective connec-
tor cable or poor
contact in the con-
nector.
Check the connection of connector on the
finisher main PWB and the connector of the
machine, and the continuity across the con-
nector terminals. Repair or replace if neces-
sary.
EEPROM installed
incorrectly.
Install EEPROM correctly.
Defective finisher
main PWB.
Replace the finisher main PWB and check
for correct operation.
9000
Document processor com-
munication error
A communication error is
detected 10 times in succes-
sion.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
DP main PWB and engine PWB (YC18)
Defective DP main
PWB.
Replace the DP main PWB and check for
correct operation (see page 1-5-28).
9060
DP EEPROM error
Mismatch between writing
data and reading data occurs
three times successively.
Mismatch of reading data from
two locations occurs three
times successively.
Defective DP main
PWB.
Replace the DP main PWB and check for
correct operation (see page 1-5-28).
Device damage of
EEPROM.
Contact the Service Administrative Division.
9500
BRU communication error
IPU PWB error
Contact the Service Administrative Division.
9510
BRU PWB error
9520
BRU PWB data error
Code
Contents
Causes
Check procedures/
corrective measures
Service Manual Y113010-4