Brother MFC MFC-7840W User Manual

Troubleshooting and routine maintenance
121
B
CAUTION
To prevent damage to the machine caused
by static electricity, DO NOT touch the
electrodes shown in the illustration.
We recommend that you place the drum
unit on a clean, flat surface with a sheet of
disposable paper or cloth underneath it in
case you accidentally spill or scatter toner.
c Wipe the laser scanner window by
wiping it with a clean soft, dry lint-free
cloth.
d Put the drum unit and toner cartridge
assembly back in the machine.
e Close the front cover.
f Plug the machine’s power cord back into
the AC power outlet first, and then plug
in the telephone line cord.
Turn on the machine’s power switch.

Brother MFC MFC-7840W Specifications

General

Print Technology	Laser
Print Resolution	Up to 2400 x 600 dpi
Paper Capacity	250 sheets
ADF Capacity	35 sheets
Scan Resolution	Up to 19200 x 19200 dpi (interpolated)
Fax Modem Speed	33.6 Kbps
Functions	Print, Copy, Scan, Fax
Maximum Copying Resolution	600 x 600 dpi
Optical Scan Resolution	600 x 2400 dpi
Wireless	Yes
Copy Resolution	600 x 600 dpi
Fax Transmission Speed	33.6 Kbps
Display	LCD
Weight	25.6 lbs
Connectivity	USB, Wireless
Scanner Type	Flatbed
Connectivity Technology	Wireless, USB
Printer Type	All-in-One
Scan Type	Flatbed, ADF