Ricoh G147 Service Manual page 183

An unstable area at the storage destination in
the settings table is set NULL for the
parameter received by the write module.
Software error 1
The software performs an
990 D
unexpected function and the
program cannot continue.
Software error 2
The software performs an
unexpected function. However,
991 C
unlike SC990, recovery
processing allows the program to
continue.
*1: There are two possible methods to get more details about SC990 and SC991:
1. Execute SP7403 or print an SMC Report (SP5990) to read the history of the 10 most
recent logged errors.
2. If you press the zero key on the operation panel with the SP selection menu displayed,
you will see detailed information about the recently logged SC990 or SC991, including
the software file name, line number, and so on.
The first method in the above list is the recommended method, because another SC could
write over the information for the previous SC.
Software error 3: Undefined
An error not controlled by the
992 D
system occurred (the error does
not come under any other SC
code).
995 D Machine Type Information Error
SM
Software defective, re-boot
Software defective, re-boot
Software defective
Turn the machine power off and on.
The machine cannot be used until
this error is corrected.
Replace the controller board
4-33
*1
*1
G147