Brother MFC-9420CN Service Manual

8-22 Confidential
8.1.4.16 Display of the Equipment’s Log Information (Function code 80)
 Function
The equipment may display its log information on the LCD.
 Operating Procedure
(1) Press the 8 and 0 keys in this order in the initial stage of the maintenance mode.
The USB serial number appears on the LCD.
(2) Press the Black Start key. Each time the Black Start key is pressed, one of the
following log information items appears on the LCD in the order given below.
1) USB serial number
2) Page count, indicating how many pages the photosensitive drum has been printed
3) Total page count, indicating how many pages the equipment has been printed since
produced
4) Toner change count, indicating how many times toner replacement has been made
5) Copy page count, indicating how many copies have been made
6) PC print page count, indicating how many pages the equipment has been printed as
an output device of the connected PC
7) FAX page count, indicating how many received FAX pages have been printed
8) ADF jam count, indicating how many times a document jam has been occurred
9) ADF page count, indicating how many documents have been fed
10) Error code of the most recent machine error *
1
11) Error code of the most recent communications error *
2
(3) To stop this operation and return to the equipment to the initial stage of the maintenance
mode, press the Stop/Exit key.
*
1 When you press the Menu/Set key while the MACHINE ERR error code is
displayed, the last error code is displayed. Each time the Menu/Set key is pressed,
up to the ten error codes are displayed one by one in reverse order.
*
2 When you press the Menu/Set key while the COMEER1 error is displayed, the last
error, the previous error, and the second previous error are displayed in turn. The
indication changes from COMEER1, COMEER2, to COMEER3.

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