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Code
Contents
8430
Punch unit communication
error
Communication with the
punch unit is not possible.
8800
Document finisher main
program error
Document finisher main pro-
gram error at power up.
8900
Document finisher backup
error
Read and write data does not
match 3 times in succession.
8990
Backup memory data prob-
lem (document finisher)
When one of the existence of
a finisher or a bridge is not
detected.
Y116141-8
Causes
Punch PWB
DF main PWB
Replace the DF main PWB
DF main PWB
Engine PWB
DF main PWB
Defective connec-
Check the connection of connector on the
tor cable or poor
finisher main PWB and the connector of the
contact in the con-
machine, and the continuity across the con-
nector.
nector terminals. Repair or replace if neces-
sary.
Defective power
Confirm that the power cable is firmly
cord
connected and, if necessary, connect the
plug all the way in.
Also check for continuity within the power
cable. If none, replace the powercable.
EEPROM installed
Install EEPROM correctly.
incorrectly.
Defective finisher
Replace the finisher main PWB and check
main PWB.
for correct operation.
1-4-67
Check procedures/
corrective measures
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Punch PWB (YC1) and DF main PWB
(YC8)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the Punch PWB.
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
DF main PWB (YC7) and Engine PWB
(YC18)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the DF main PWB
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
36).
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
DF main PWB (YC7) and Engine PWB
(YC33)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the DF main PWB
2NP-3
Service Manual
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