7414 Drum Unit Y Non-Installing Error; 9530 Backup Data Error; F010 Main Pwb Checksum Error; F020 Main Memory Or Expanded Memory Checksum Error - Kyocera FS-C5350DN Service Manual

Code
7414 Drum unit Y non-installing error
The EEPROM of drum PWB Y does not
communicate normally.
Incompatible drum unit Y is installed.
9530 Backup data error
The serial number of the machine written
on the EEPROM of the engine PWB dif-
fers with that is written on both the flash
memory of the engine PWB and the
EEPROM of the drum PWB as a backup.
F0 Main PWB - Operation panel PWB
F000 communication error
F010 Main PWB checksum error
F020 Main memory or expanded memory
checksum error
Contents
Causes Check procedures/corrective measures
Faulty connection Check the installation of the drum unit Y and
of the connector drum relay PWB and reinstall them if neces-
between the drum sary (See page 1-5-14).
PWB Y and drum
relay PWB.
Defective harness Reinsert the connector. Also check for conti-
between drum nuity within the connector harness. If none,
relay PWB (YC1) remedy or replace the harness.
and engine PWB
(YC34), or
improper connec-
tor insertion.
Installation of Install drum unit Y compatible with the spec-
incompatible drum ifications to the printer.
unit Y.
Defective drum Replace the drum unit Y (See page 1-5-14).
PWB Y.
Defective engine Replace the engine PWB (See page 1-5-
PWB. 29).
Replacing both the Check that the machine operates properly
engine PWB and by reverting the engine controller and the
the drum unit at the drum unit to the old ones. To replace the
same time. engine PWB and the drum unit at the same
time, turn on the printer after replacing either
one. Check that the printer operates prop-
erly and then turn off the printer. Replace the
other and turn on the printer to check that
the printer operates properly. Be sure to
replace one by one.
Defective main Turn the power switch off/on to restart the
PWB. printer. If the error is not resolved, replace
main PWB (See page 1-5-28).
Defective opera- Replace the operation panel PWB.
tion panel PWB.
Defective main Turn the power switch off/on to restart the
PWB. printer.
In recovery mode, download the controller
firmware using a CompactFlash card.
In recovery mode, only a CompactFlash
card is usable, not a USB memory.
Replace main PWB (See page 1-5-28).
Defective main Turn the power switch off/on to restart the
memory (RAM) on printer. If the error is not resolved, replace
the main PWB. main PWB (See page 1-5-28).
Defective expan- Replace the expansion memory module
sion memory mod- (See page 1-2-5).
ule.
Remarks
2K8-1
1-4-19