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C5500n User’s Guide
Display Panel Messages • 109
PRESS ONLINE SW
INVALID DATA
The printer has
received invalid
data.
Press ON-LINE.
Reprocess and resend
the print job.
REPLACE TONER
nnn: * TONER EMPTY
The indicated toner
needs replacement.
Replace the indicated
toner:
410: Y = Yellow
411 M = Magenta
412: C = Cyan
413: K = Black
REPLACE yyyy
nnn: yyyy LIFE
The indicated
component is
nearing end of life
and should be
replaced.
Replace the indicated
component: YYYY =
Fuser, Belt, C Drum, Y
Drum, M Drum, K
Drum.
tttt EMPTY Appears on the
second line of the
display to indicate
that ttt tray has run
out of media.
Load media in tray tttt.
xxx LIFE Appears on the
second line of the
display to indicate
that consumable xxx
(e.g., belt, fuser,
image drum) will
need to be replaced
soon.
Replace the indicated
item.
YYYY
nnn: FATAL ERROR
An error has
occurred which
requires service.
YYYY = the general
cause. nnn = error
number.
Try turning off the
printer then turning it
back on. If this does
not remedy the
problem, 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.
Message Meaning What to Do