9
.7
<Troubleshooting>
Understanding display messages
Messages appear on the Smart Panel program window or the control
panel display to indicate the printer’s status or errors. Refer to the tables
below to understand the messages’ meaning and correct the problem if
necessary. Messages and their meanings are listed in alphabetical
order.
Note
When you call for service, it is very convenient to tell the
service representative the display message.
Message
Meaning
Suggested solutions
Dev Cartridge Not
Installed
There is no toner
cartidge installed in
your printer.
Install the toner
cartidge.
Door Open
The front cover or
rear cover is not
securely latched.
Close the cover until it
locks into place.
Duplex Jam 0
Check Inside
Paper has jammed
during duplex
printing.
Clear the jam. See
page 9.4.
Duplex Jam 1
Open/Close Door
Paper has jammed
during duplex
printing.
Clear the jam. See
page 9.5.
Fuser Door Open
The fuser door is not
securely latched.
Open the rear cover
and close the fuser
door until it locks into
place.
For the location of the
fuser door, see
page 9.4.
Install Toner
A toner cartridge is
not installed.
Install a toner
cartridge.
Invalid Toner
The toner cartridge
you have installed is
not for your printer.
Install a Samsung-
genuine toner
cartridge, designed
for your printer.
Load [Size] In
[Tray]
The paper size
specified in the
printer properties
does not match the
paper you are
loading.
Load the correct
paper in the tray.
Load Manual
Press Cont Key
The multi-purpose
tray is empty in
manual feed mode.
Load a sheet of print
material and press
Stop
(if you use the
ML-3050) or
OK
(if
you use the ML-
3051N or ML-
3051ND). You need to
press
Stop
or
OK
each page to be
printed.
Low Heat Error
Cycle Power
There is a problem
in the fuser unit.
Unplug the power
cord and plug it back
in. If the problem
persists, please call
for service.
LSU Hsync Error
Cycle Power
A problem has
occurred in the LSU
(Laser Scanning
Unit).
Unplug the power
cord and plug it back
inches. If the problem
persists, please call
for service.
LSU Motor Error
Cycle Power
A problem has
occurred in the LSU
(Laser Scanning
Unit).
Unplug the power
cord and plug it back
inches. If the problem
persists, please call
for service.
Main Motor
Locked
There is a problem
in the main motor.
Open and then close
the front cover.
Memory Overflow
The printer does not
have enough
memory to print the
current job.
The job will be
automatically cleared
and the printer will
return to Standby
mode.
Expand the memory
in your printer. See
page 10.1.
Offline
The printer is off-line
and cannot print.
Press any button.
Open Heat Error
Cycle Power
There is a problem
in the fuser unit.
Unplug the power
cord and plug it back
in. If the problem
persists, please call
for service.
Over Heat Error
Cycle Power
There is a problem
in the fuser unit.
Unplug the power
cord and plug it back
in. If the problem
persists, please call
for service.
Message
Meaning
Suggested solutions