Service manual

SC Tables
D127/D128 6-40 SM
No.
Definition
Symptom Possible Cause/Countermeasure
990 B
Software performance error
The software attempted to
perform an unexpected
operation.
 When this error occurs,
the file name, address,
and data will be stored in
NVRAM. This
information can be
checked by using
SP7-403. See the data
and the situation in
which this SC occurs.
Then report the data and
conditions to your
technical control center.
 Software defective
 Internal parameter incorrect
 Insufficient working memory
991 D
Software continuity error
The software attempted to
perform an unexpected
operation. However, unlike
SC990, the process can keep on
running.
 Logged only; the machine can
continue to operate
992 B
Undefined error
An error not controlled by the
system occurred (the error does
not come under any other SC
code).
 Defective software program