Brother MFC-9420CN Service Manual

8-1 Confidential
8.1 MAINTENANCE MODE FOR THE MACHINE
8.1.1 Entry into the Maintenance Mode
Press the Menu/Set and Black Start keys. Next press the key four times to make the machine
enter the maintenance mode.
The machine beeps for approx. one second and displays "
" on the LCD,
indicating that it is placed in the initial stage of the maintenance mode, a mode in which the
machine is ready to accept entry from the keys.
To select one of the maintenance-mode functions listed in Section 8.1.2, enter the corresponding
2-digit function code with the numerical keys on the control panel. (The details of each
maintenance-mode function are described in Section 8.1.4.)
NOTE:
• To exit from the maintenance mode and switch to standby, press the 9 key twice in the initial
stage of the maintenance mode.
• Pressing the Stop/Exit key after entering only one digit restores the machine to the initial stage
of the maintenance mode.
• If an invalid function code is entered, the machine resumes the initial stage of the maintenance
mode.

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