Brother MFC-9420CN Service Manual

6-6 Confidential
6.4 PERIODIC MAINTENANCE PROCEDURES
Maintenance Work should be implemented according to the “Periodic Maintenance Parts and
Maintenance Cycle” set out in Table 6-1.
Table 6-1
No. Name of Replacement Part Replacement Cycle Operator
1
OPC belt cartridge Every 60,000 images Serviceperson or
Customer
2
Fusing Unit Every 60,000 pages Serviceperson or
Customer
3 Cleaning Roller PU Every 120,000 pages Serviceperson only
4 Transfer Roller ASSY PU Every 120,000 pages Serviceperson only
5 Paper Feed Roller Every 120,000 pages Serviceperson only
6 Transfer Unit PU Every 300,000 images Serviceperson only
6.4.1 Replacement of OPC Belt Cartridge
<Criterion of Replacement>
OPC belt cartridge should be replaced with a new cartridge at 60,000 images or 12 months
whichever comes earlier.
When time is due for replacement of OPC belt cartridge, the following maintenance message
appears on the LCD of the control panel.
Replace OPC Belt
CAUTION
• Do not directly touch the OPC belt surface with bare
hands or gloves.
• If OPC belt is exposed for more than 2 minutes under the
light of 800 lux, it may cause the defective image.
<Work Procedure>
Sequence of Disassembling
(1) Turn off the machine’s power switch.
(2) Open the scanner unit.

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