Brother MFC-9440CN User Manual page 133

Error Message Cause
The machine has a mechanical
Scan Unable XX
problem.
(XX =Error Code)
The drum unit and toner
Toner Life End
cartridges assembly is not
Replace Black(K)
installed properly, or one or more
1
Toner Cartridge.
of the toner cartridges are used
up and printing is not possible.
1
The toner
cartridge color
which is used up is
shown in the
message.
If the LCD shows Toner Low,
Toner Low
you can still print; however, the
Prepare New Black(K)
machine is telling you that the
1
Toner Cartridge.
toner cartridge is near the end of
1 its life and the toner will soon run
The toner
out.
cartridge color
which is near the
end of life is
shown in the
message.
There are too many files stored
Too Many Files
on the USB flash memory drive.
Unusable Device An incompatible or broken device
has been connected to the USB
direct interface.
It is time to replace the waste
Waste Toner Full
toner box.
The waste toner box is almost full. Be ready to replace the waste toner box. (See
Waste Toner Soon
The paper in the tray is not the
Wrong Paper Size
correct size or the tray is empty.
Troubleshooting and routine maintenance
Action
Turn off the machine's power switch and then
turn it on again. If the error message continues
leave the machine for several minutes before
you try it again. The machine can be turned off
for up to 4 days without losing faxes stored in the
memory. (See Checking if the machine has
faxes in its memory on page 124.)
Do one of the following:
Re-install the toner cartridges and drum unit
assembly.
Replace the empty toner cartridge with a
new one. (See Replacing a toner
cartridge on page 155.)
If one of the color toner cartridges is empty,
choose Mono in the printer driver to be able
to continue printing in monochrome.
Order a new toner cartridge now for the toner
cartridge color that is low.
Reduce the number of files stored on the USB
flash memory drive.
Remove the USB flash memory drive from the
USB direct interface.
Replace the waste toner box. (See Replacing
the waste toner box on page 172.)
Replacing the waste toner box on page 172.)
Load the correct size of paper in the tray.
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