Oki C5400 User Manual page 127

Message
YYYY
: FATAL ERROR
nnn
Meaning
An error has
occurred which
requires service.
YYYY = the general
cause. nnn = error
number.
Troubleshooting • 125
What to Do
Write down the
message including the
error number "nnn,"
then call your
authorized Oki Data
Service Dealer for
service.
Note
: If you see a
series of octets
containing letters and
numbers scrolling
across the display, be
sure to write these
down also and report
them to the Service
Dealer.