Brother MFC MFC-7840W User Manual

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f Clean the corona wire of the drum unit
by gently sliding the green tab from right
to left and left to right several times.
CAUTION
Be sure to return the green tab to the home
position (a) (1). If you do not, printed pages
may have a vertical stripe.
g Put the new drum unit and toner
cartridge assembly in the machine.
h Press Clear/Back.
To confirm you are installing a new
drum, press 1.
i When the LCD shows Accepted, close
the front cover.
Machine information B
Checking the serial number B
You can see the machine’s serial number on
the LCD.
a (For MFC-7440N) Press Menu, 5, 1.
(For MFC-7840W) Press Menu, 6, 1.
Machine Info.
1.Serial No.
b Press Stop/Exit.
Checking the page counters B
You can see the machine’s page counters for
copies, printed pages, reports and lists, faxes
or a summary total.
a (For MFC-7440N) Press Menu, 5, 2.
(For MFC-7840W) Press Menu, 6, 2.
Machine Info.
2.Page Counter
b Press a or b to choose Total, Copy,
Print or Fax/List.
You can see the machine’s page count.
c Press Stop/Exit.
1

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