Brother MFC MFC-9120CN User Manual

158
Cleaning the corona wires C
If you have print quality problems, clean the
corona wires as follows:
a Turn off the machine. Unplug the
telephone line cord first, disconnect all
cables, and then unplug the power cord
from the electrical socket.
b Fully open the top cover by lifting up on
the handle (1).
IMPORTANT
When the scanner is open, you cannot
open the top cover.
c Take out the drum unit and toner
cartridge assemblies.
IMPORTANT
• We recommend that you place the drum
unit and toner cartridge assembly on a
clean, flat surface with a sheet of
disposable paper or cloth underneath it in
case you accidentally spill or scatter toner.
• To prevent damage to the machine from
static electricity, DO NOT touch the
electrodes shown in the illustration.
d Clean the primary corona wire inside the
drum unit by gently sliding the green tab
from left to right and right to left several
times.
Note
Be sure to return the tab to the home
position (a) (1). If you do not, printed
pages may have a vertical stripe.
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Brother MFC MFC-9120CN Specifications

General

Print Technology	Laser
Connectivity	USB 2.0, Ethernet
Duplex Printing	Manual
ADF Capacity	35 sheets
Fax Modem Speed	33.6 Kbps
Functions	Print, Copy, Scan, Fax
Maximum Printing Speed (Black)	17 ppm
Maximum Printing Speed (Color)	17 ppm
Monthly Duty Cycle	Up to 30, 000 pages
Scanning Resolution	Up to 19200 x 19200 dpi (interpolated)
Optical Scan Resolution	1200 x 2400 dpi
Memory	64 MB
Paper Handling	250-sheet input tray
Scanner Type	Flatbed
Copy Speed	Up to 17 cpm
Paper Capacity	250 sheets
Print Speed	Up to 17 ppm (Black/Color)