Brother MFC-9440CN User Manual page 147

Error Message Cause
Rename the File There is already a file on the USB
flash memory drive with the same
name as the file you are trying to
save.
The machine has a mechanical
Scan Unable XX
problem.
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
its life and the toner will soon run
1
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.
Waste Toner Full It is time to replace the waste
toner box.
Waste Toner Soon The waste toner box is almost full. Be ready to replace the waste toner box. (See
Wrong Paper Size The paper in the tray is not the
correct size or the tray is empty.
Troubleshooting and routine maintenance
Action
Change the file name of the file on the USB flash
memory drive or the file you are trying to save.
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 132.)
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 166.)
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 device from the USB direct
interface. Turn off the machine's power switch,
wait a few seconds and turn it on again.
Replace the waste toner box. (See Replacing
the waste toner box on page 183.)
Replacing the waste toner box on page 183.)
Load the correct size of paper in the tray.
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