Brother HL-L2357DW Online User's Manual page 159

LED Indication Status Monitor Cause
Replace Drum It is time to replace the drum
unit.
The drum unit counter was
not reset when the previous
drum was removed.
Cover is Open The front cover is not
completely closed.
The fuser cover is not
completely closed or paper
was jammed in the back of
the machine when you turned
on the power.
2-sided Disabled The back cover of the
machine is not closed
(For automatic 2-
completely.
sided printing
models)
The 2-sided tray is not
installed completely.
Jam 2-sided The paper is jammed
underneath the 2-sided tray
(For automatic 2-
or the fuser unit.
sided printing
models)
Jam Inside The paper is jammed inside
the machine.
Jam Rear The paper is jammed in the
back of the machine.
Jam Tray The paper is jammed in the
paper tray.
Out of Memory The machine's memory is
full.
Size Error DX The paper size specified in
the printer driver is not
(For automatic 2-
available for automatic 2-
sided printing
sided printing.
models)
The paper in the tray is not
the correct size and is not
available for automatic 2-
sided printing.
Size Mismatch The paper in the tray is not
the correct size.
Action
If the problem continues, replace
the drum unit with a new one.
Replace the drum unit with a new
one.
Reset the drum unit counter.
Open and then firmly close the
front cover of the machine.
• Close the fuser cover located
inside the back cover of the
machine.
• Make sure paper is not
jammed inside the back cover
of the machine, and then
close the fuser cover.
Close the back cover of the
machine until it locks in the
closed position.
Install the 2-sided tray firmly in
the machine.
Clear the Jam in the 2-sided tray
or the fuser unit.
Open the front cover, remove the
drum and toner, and clear the
paper jam.
Open the fuser cover and remove
all jammed paper. Close the fuser
cover.
Pull the paper tray out
completely, open the front cover
and fuser cover to remove all
jammed paper.
Reduce the print resolution.
Press Go. Choose a paper size
which is supported by the duplex
tray.
Paper size available for
automatic 2-sided printing is A4.
Load the correct size of paper in
the tray and set the tray for that
paper size.
Paper size available for
automatic 2-sided printing is A4.
Load the correct size of paper in
the tray and set the size of paper
to the tray.
155