Brother MFC-9420CN Service Manual

vii Confidential
6.1.4 CIS Scanner Area Setting ....................................................................................6-2
6.1.5 Setting Which Allows the User to Select the Country...........................................6-2
6.2 IF YOU REPLACE THE ENGINE CONTROL BOARD PU.......................................6-4
6.3 ADJUSTMENT OF THE GUIDE B POSITION OF TOP FUSE COVER FU .............6-5
6.4 PERIODIC MAINTENANCE PROCEDURES............................................................6-6
6.4.1 Replacement of OPC Belt Cartridge ....................................................................6-6
6.4.2 Replacement of Fusing Unit...............................................................................6-10
6.4.3 Replacement of Transfer Roller ASSY PU (120K KIT) ...................................... 6-13
6.4.4 Replacement of Cleaning Roller PU (120K KIT) ................................................ 6-15
6.4.5 Replacement of Paper Feed Roller and Separator Pad (120K KIT) ..................6-17
6.4.6 Replacement of Transfer Unit PU (120K KIT)....................................................6-23
6.5 IF YOU REPLACE THE OPC BELT CARTRIDGE .................................................6-25
6.6 IF YOU REPLACE THE FUSING UNIT...................................................................6-26
CHAPTER 7 CLEANING
CHAPTER 8 MAINTENANCE MODE
8.1 MAINTENANCE MODE FOR THE MACHINE ..........................................................8-1
8.1.1 Entry into the Maintenance Mode.........................................................................8-1
8.1.2 List of Maintenance Mode Functions....................................................................8-2
8.1.3 User-access to the Maintenance Mode................................................................ 8-3
8.1.4 Detailed Descriptions of Maintenance Mode Functions .......................................8-4
8.1.4.1 EEPROM Parameter Initialization (Function mode 01/91)...........................8-4
8.1.4.2 Printout of Scanning Compensation Data (Function mode 05)....................8-5
8.1.4.3 Placement of CIS Unit in Position for Transportation (Function mode 06) .. 8-7
8.1.4.4 ADF Performance Test (Function mode 08)................................................ 8-7
8.1.4.5 Test Pattern 1 (Function mode 09) ..............................................................8-8
8.1.4.6 Firmware Switch Setting and Printout ..........................................................8-9
[1] Firmware switch setting (Function mode 10) ...................................................8-9
[2] Printout of firmware switch data (Function mode 11).....................................8-11
8.1.4.7 Operation Check of LCD (Function mode 12) ...........................................8-12
8.1.4.8 Operational Check of Control Panel PCB (Function mode 13)..................8-13

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