Kyocera TASKalfa 5551ci - Document Finisher Main Program Error; Document Finisher Backup Error; Center-Folding Unit Backup Error

2L6/2N6/2N5/2N4
1-4-190
8800 Document finisher main
program error
Document finisher main pro-
gram error at power up.
DF main PWB
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
DF main PWB (YC4) and Engine PWB
(YC18) (4000-sheet finisher)
DF main PWB (YC7) and Engine PWB
(YC18) (1000-sheet finisher)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the DF main PWB
Engine PWB
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
80).
8900 Document finisher backup
error
Read and write data does not
match 3 times in succession.
DF main PWB
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
DF main PWB (YC4) and Engine PWB
(YC18) (4000-sheet finisher)
DF main PWB (YC7) and Engine PWB
(YC18) (1000-sheet finisher)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the DF main PWB
8930 Center-folding unit backup
error
(4000-sheet finisher)
Read and write data does not
match 3 times in succession.
CF main PWB
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
CF main PWB (YC7) and DF main PWB
(YC9)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Install the EEPROM properly.
4. Replace the CF main PWB
Code Contents Related parts
Check procedures/
corrective measures