Brother MFC-9420CN Service Manual

iv Confidential
CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR
4.1 TRANSFERRING RECEIVED FAX DATA ................................................................4-1
CHAPTER 5 DISASSEMBLY/REASSEMBLY AND LUBRICATION
5.1 DISASSEMBLY/REASSEMBLY ...............................................................................5-1
 Safety Precautions........................................................................................................5-1
 Tightening Torque......................................................................................................... 5-2
 Preparation ...................................................................................................................5-3
 How to Access the Object Component ......................................................................... 5-3
 Disassembly Flowchart ................................................................................................. 5-4
5.1.1 AC Cord................................................................................................................5-5
5.1.2 OPC Belt Cartridge............................................................................................... 5-6
5.1.3 Paper Tray............................................................................................................ 5-6
5.1.4 Fusing Unit ...........................................................................................................5-7
5.1.5 Side Cover LR ....................................................................................................5-11
5.1.6 Top Side L ..........................................................................................................5-12
5.1.7 ADF Unit.............................................................................................................5-13
5.1.8 Scanner Unit....................................................................................................... 5-28
5.1.9 Pull Arm/Scanner Slider L, R..............................................................................5-29
5.1.10 IS Lock Lever ASSY...........................................................................................5-30
5.1.11 Tray (TP) ............................................................................................................5-30
5.1.12 Panel ..................................................................................................................5-31
5.1.13 Battery ASSY......................................................................................................5-35
5.1.14 Main PCB ...........................................................................................................5-36
5.1.15 NCU PCB ASSY.................................................................................................5-37
5.1.16 Top Side R .........................................................................................................5-38
5.1.17 Cleaning Roller Cover PU / Cleaning Roller PU.................................................5-38
5.1.18 Top Cover...........................................................................................................5-39
5.1.19 Center Cover ......................................................................................................5-40
5.1.20 Right Side Cover PU ..........................................................................................5-40
5.1.21 Side Cover LF ....................................................................................................5-41
5.1.22 Interlock Switch PU (Front) ................................................................................5-41

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