Brother MFC-9420CN Service Manual

Confidential
3-7
3.2.1 Print System and Transfer System
Fig.3-8 shows the basic structure of the print system having the OPC belt as the main part and the
transfer system having the transfer drum as the main part. Color printing is made by actuating the
each process in the print system and transfer system.
4 cycles of actions 1 to 6 are required to form a full 24 bit color image on the transfer drum, only one
cycle of actions 7, 8 and 9 is required to transfer the image to the paper from the transfer drum ready
for fixing by actions 10 and 11.
1 Chargimg
2 Exposing
4 First Transfer (Transfer Belt)
OPC Belt
3 Developing
Transfer Belt
5 Belt Discharge
6 OPC Belt Cleaning
7 Second Transfer(Paper)
9 Paper Dischanging
8 Transfer Cleaning
10 Fusing
Paper Exit
Print System
Transfer System
Transport System
KCMY
KCMY
KCMY
KCMY
Fig. 3-8

Brother MFC-9420CN Specifications

General

Print technology	Laser
Maximum resolution	1200 x 2400 DPI
Economical printing	Yes
Print speed (black, normal quality, A4/US Letter)	31 ppm
Print speed (color, normal quality, A4/US Letter)	8 ppm
Digital sender	No
Number of print cartridges	4
Scanner type	Flatbed scanner
Scanner features	Scan to: e-mail, image, OCR, file
Copier resize	25 - 400 %
Maximum copy resolution	600 x 600 DPI
Maximum number of copies	99 copies
Copy speed (black, normal quality, A4)	31 cpm
Copy speed (color, normal quality, A4)	8 cpm
Faxing	Color faxing
Fax memory	500 pages
Modem speed	33.6 Kbit/s
Fax speed dialing (max numbers)	200
Total input capacity	750 sheets
Maximum input capacity	250 sheets
Auto document feeder (ADF) input capacity	35 sheets
Maximum internal memory	576 MB
Bundled software	ScanSoft PaperPort Presto! PageManager
I/O ports	IEEE-1284 USB 2.0
Dimensions (WxDxH)	483.5 x 514 x 530 mm
Printer management	BRAdmin Professional, MIB-II
Networking features	10Base-T/100Base-TX
All-in-one functions	Fax, Scan
Color all-in-one functions	copy, fax, print, scan
Compatible operating systems	Windows 98(SE)/ Me/ NT WorkStation 4.0/ 2000 Professional/ XP Mac OS 9.1 - 9.2, Mac OS X 10.2.4+
Sustainability certificates	ENERGY STAR
Power consumption (standby)	85 W
Power consumption (PowerSave)	16 W
Power consumption (average operating)	1090 W
Operating temperature (T-T)	10 - 32 °C
Operating relative humidity (H-H)	20 - 80 %
Market positioning	Business