Brother DCP-L8400CDN Basic User's Manual page 108

Error Message
Cover is Open.
DIMM Error
Document Jam
Drum End Soon
Drum !
Drum Stop
Jam 2-sided
Jam Inside
100
Cause
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.
The ADF cover is not
completely closed.
The ADF cover is open while
loading a document.
 The DIMM is not installed
correctly.
 The DIMM is broken.
The DIMM does not meet

the required specifications.
The document was not
inserted or fed correctly, or the
document scanned from the
ADF was too long.
The drum unit is near the end
of its life.
The corona wires on the drum
unit must be cleaned.
The drum unit is not installed
correctly.
It is time to replace the drum
unit.
The paper is jammed
underneath the paper tray or
the fuser unit.
The paper is jammed inside the
machine.
Action
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 behind the
fuser cover at the back of the machine, then
close the fuser cover and press Start
(see Paper is jammed at the back of the
machine on page 110).
Close the ADF cover of the machine.
Close the ADF cover of the machine, then
press .
 Turn off the machine and unplug the power
cord. Remove the DIMM. (See Advanced
User's Guide)
 Confirm the DIMM meets the required
specifications. (See Advanced User's
Guide)
 Reinstall the DIMM correctly. Wait a few
seconds, plug in the power cord, and then
turn the machine on again.
 If this error message appears again,
replace the DIMM with a new one.
(See Advanced User's Guide)
See Document is jammed in the top of the ADF
unit on page 106 or Using the automatic
document feeder (ADF) on page 35.
Order a new drum unit before you get a
Replace Drum message.
Clean all four corona wires inside the drum unit
by sliding the blue tab (see Cleaning the
corona wires on page 84).
Remove the drum unit, remove the toner
cartridges from the drum unit, and reinstall the
toner cartridges back into the drum unit.
Reinstall the drum unit back in the machine.
Replace the drum unit, (see Replacing the
drum unit on page 59).
See Paper is jammed underneath the paper
tray on page 115.
See Paper is jammed inside the machine
on page 112.