Ricoh A-C2 Service Manual page 170

SERVICE CALL CONDITIONS
Code No.
900 B Electronic total counter error
The value of the total counter has
already exceeded 9,999,999
901 B SC901 Mechanical total count error
The IO board cannot receive the
mechanical total count data.
951 C F-gate error at write request
After the IPU receives an F-gate signal,
it receives another F-gate signal.
953 C Scanner setting error
The IPU does not respond with the
scanner setting signal required to start
scanning processing.
954 B Printer setting error
The IPU does not respond with the
settings that are required to start image
processing by the printer.
955 C Memory setting error
The IPU does not respond with the
settings that are required to start image
processing using the memory.
964 C Printer ready error
The printer ready signal is not
generated within 17 seconds after the
IPU received the print start signal.
984 B Print image data transfer error
The image transfer from the controller
to the engine via the PCI bus does not
end within 15 s after starting.
985 B Scanner image data transfer error
The image transfer from the engine to
the controller via the PCI bus does not
end within 3 s after starting.
986 C Software write parameter setting error
An unstable area at the storage
destination in the settings table is set
NULL for the parameter received by the
write module.
990 B Software performance error
The software attempted to perform an
unexpected operation.
Symptom
4-14
19 January, 2001
Possible Cause
NVRAM defective
Mechanical total counter defective
Software defective
BICU defective
Software defective
Software defective
Software defective
Software defective
Controller board defective
BICU defective
Connectors between BICU and
controller loose or defective
Controller board defective
BICU defective
Connectors between BICU and
controller loose or defective
SIB defective
Software defective
Software defective
Internal parameter incorrect
Insufficient working memory
When this SC occurs, the file name,
address, and data will be stored in
NVRAM. This information can be
checked by using SP7-403. Note the
above data and the situation in which
this SC occurs. Then report the data
and conditions to your technical
control center.