Brother MFC-9420CN Service Manual

Confidential
9-21
S-2
Although the USB driver is installed, it is unable to find the BRUSB: port.
(Windows98/Me only)
User Check
(1) Re-install the USB driver by following the steps below;
i) Turn the machine off.
ii) Double-click the file “Deins USB.exe” in the USB directory of the CD-ROM.
iii) Re-boot the PC.
iv) Turn the machine on.
v) “Add New Hardware Wizard” is launched again, follow the instructions in the Wizard
tore-install the driver.
(2) Try to connect the machine directly to the computer if it is connected through a USB hub.
Possible cause
Step
Check
Result
Remedy
Computer
Operating
System
1 Windows 95 or Windows
NT4.0?
Yes The operating system does not
support USB.
Computer
settings
2 Does ‘Universal Serial Bus
Controllers’ appear in the
Device Manager tab of
‘System Properties’ in
Control Panel?
No This problem can be caused by
your computer settings. See the
computer manual.
USB cable/
machine
damage
3 Does “Add New Hardware
Wizard” appear on the
screen or Does test print
complete?
No The USB cable is damaged.
Replace the cable. If the same
problem appears, the machine
will be damaged.

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