Brother HL-3450CN Service Manual page 272

Display Message
16 ALIGN FU UNIT
16 ALIGN BELT CG
16 ALIGN FUSER CL
ROLLER
16 ALIGN LFU
17 MEDIA JAM FEED
17 MEDIA JAM INNER
17 MEDIA JAM OUTER
17 MEDIA JAM DRUM
17 MEDIA JAM DUPLEX
18 CLOSE PANEL
FRONT/TOP/REAR/LFU
18 CLOSE TR PANEL
DPL
19 SLEEP MODE
01 WAIT
00 READY
02 PRINT
Meaning
Fusing unit not installed
OPC belt cartridge not
installed
Fuser cleaner not installed.
Incorrect connection
between the engine and
fusing unit.
Paper jam at feeding area
Paper jam inside printer
Paper jam at paper exit area
Paper jam wound around
the transfer drum
Duplex paper transportation
jam.
Covers open
Duplex unit cover is open.
Printer under idling
condition
Printer warming-up
Printer ready to print in
standby status
Printing in progress
8-9
HL-3450CN SERVICE MANUAL
Countermeasure
N
Remove the fusing unit and
refit it.
N
Confirm it is correctly
installed.
Confirm the installation of the
OPC belt cartridge.
Install the fuser cleaner.
Connect the cable between the
engine and fusing unit correctly.
Remove the media cassette,
and remove paper jammed at
feeding entrance.
Open the transfer unit, and
remove paper jammed inside.
Open the transfer unit / paper
exit unit and remove paper
jammed inside.
Open the transfer unit and
remove the OPC belt cartridge.
Remove the paper jam by
unwinding the paper from the
transfer drum.
N
Open the duplex top cover
and remove the jammed
paper from the inside of the
printer.
N
Open the duplex center cover
and remove the jammed
paper from the inside of the
printer.
N
Open the duplex bottom
cover (M) and remove the
jammed paper.
Confirm that the covers are
firmly closed.
Confirm that the cover is firmly
closed.
Printer automatically returns to
the operating condition when a
PRINT signal is sent.
These are normal operation
modes.