Brother MFC-9440CN Service Reference Manual

Confidential
Ref. 2-26
6. Toner cleaning
(1) Toner remaining on the exposure drum which has not completely been transferred on to
the paper is pulled onto the cleaning roller with a lower potential and the drum is cleaned.
(2) After the above step, the potential of the roller is raised during printing, and such attracted
toner is returned to the drum again. The returned toner is attracted to the belt unit by
lowering the potential of the transfer roller.
(3) The toner attracted to the belt unit is collected by the belt cleaner below the unit, and
stored in the waste toner box.
Memo:
When the toner returns to the exposure drum from the cleaning roller, the develop roller is
separated from the drum to prevent color mixture.
Fig. Ref2-25
Cleaning roller
Transfer roller
Paper
Belt
Exposure drum
Belt
Cleaning shaft
Back up roller
Cleaning roller
Belt cleaner
Drum drive cleaner
Paper
Develop roller
Belt
Exposure drum
Develop roller
Cleaning roller
(1)
(2)
(3)
Waste toner box

Brother MFC-9440CN Specifications

General

Print technology	Laser
Maximum resolution	2400 x 600 DPI
Time to first page (color, normal)	16 s
Print speed (black, normal quality, A4/US Letter)	20 ppm
Scan to	e-mail, file, image, OCR
Input color depth	48 bit
Copier resize	25 - 400 %
PC free copying	Yes
Maximum copy resolution	1200 x 600 DPI
Maximum number of copies	99 copies
N-in-1 copy function (N=)	2, 4, 9, 16
Copy speed (black, normal quality, A4)	16 cpm
Faxing	Color faxing
Fax memory	400 pages
Modem speed	33.6 Kbit/s
Fax speed dialing (max numbers)	300
Total input capacity	250 sheets
Total output capacity	150 sheets
Multi-Purpose tray input capacity	50 sheets
Auto document feeder (ADF) input capacity	35 sheets
Internal memory	64 MB
Maximum internal memory	576 MB
Sound power level (standby)	30 dB
Sound pressure level (printing)	54.5 dB
Display	LCD
Market positioning	Business
Non-ISO print media sizes	Executive (184 x 267mm), Folio (media size), Legal (media size), Letter (media size)
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5, B6
JIS B-series sizes (B0...B9)	B5
Maximum ISO A-series paper size	A4
Font styles	66 Scaleable fonts, 12 Bitmap fonts, 13 Barcodes
Dimensions (WxDxH)	432 x 487 x 482 mm
Networking features	10/100 Base-TX
All-in-one functions	Copy, Fax, Scan
Color all-in-one functions	copy, fax, print, scan
Compatible operating systems	Windows Vista/XP/Home/2003/2000 Mac OS X 10.2.4 or greater Linux
Standard interfaces	USB 2.0
Power consumption (standby)	95 W
Power consumption (PowerSave)	28 W
Power consumption (average operating)	495 W
Package weight	38600 g
Sustainability certificates	ENERGY STAR
Digital sender	No