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Brother MFC MFC-7840W User Manual

Brother MFC MFC-7840W
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Troubleshooting and routine maintenance
111
B
Transferring your faxes or
Fax Journal report B
If the LCD shows:
Init Unable XX
Print Unable XX
Scan Unable XX
We recommend transferring your faxes to
another fax machine or to your PC. (See
Transferring faxes to another fax machine
on page 112 or Transferring faxes to your PC
on page 112.)
You can also transfer the Fax Journal report
to see if there are any faxes you need to
transfer. (See Transferring Fax Journal report
to another fax machine on page 112.)
Note
If there is an error message on the
machine’s LCD, after the faxes have been
transferred, disconnect the machine from
the power source for several minutes, and
then reconnect it.
Scan Unable XX The machine has a mechanical
problem.
Do one of the following:
(MFC-7440N only)
See Transferring your faxes or Fax
Journal report on page 111 before
disconnecting the machine so you will
not lose any important messages.
Then, disconnect the machine from the
power for several minutes and then
reconnect it.
(MFC-7840W only)
Disconnect the machine from the power
for several minutes, then reconnect it.
(The machine can be turned off for
approximately 4 days without losing
faxes stored in the memory. See
Transferring your faxes or Fax Journal
report on page 111.)
Toner Life End The drum unit and toner cartridge
assembly may have been
installed improperly, or the toner
cartridge is used up and printing
is not possible.
Do one of the following:
Re-install the toner cartridge and drum
unit assembly.
Replace the empty toner cartridge with a
new one. (See Replacing a toner
cartridge on page 126.)
Toner Low If the LCD shows Toner Low,
you can still print; however, the
machine is telling you that the
toner cartridge is near the end of
its life and the toner will soon run
out.
Order a new toner cartridge now.
Error Message Cause Action

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Brother MFC MFC-7840W Specifications

General IconGeneral
Print TechnologyLaser
Print ResolutionUp to 2400 x 600 dpi
Paper Capacity250 sheets
ADF Capacity35 sheets
Scan ResolutionUp to 19200 x 19200 dpi (interpolated)
Fax Modem Speed33.6 Kbps
FunctionsPrint, Copy, Scan, Fax
Maximum Copying Resolution600 x 600 dpi
Optical Scan Resolution600 x 2400 dpi
WirelessYes
Copy Resolution600 x 600 dpi
Fax Transmission Speed33.6 Kbps
DisplayLCD
Weight25.6 lbs
ConnectivityUSB, Wireless
Scanner TypeFlatbed
Connectivity TechnologyWireless, USB
Printer TypeAll-in-One
Scan TypeFlatbed, ADF

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