Brother MFC-9420CN Service Manual

8-5 Confidential
8.1.4.2 Printout of Scanning Compensation Data (Function code 05)
 Function
The machine prints out the white and black level data for scanning compensation.
 Operating Procedure
Do not start this function merely after powering on the equipment but start it after carrying
out a sequence of scanning operation. Unless the equipment has carried out any scanning
operation, this function cannot print out correct scanning compensation data. This is
because at the start of scanning operation, the equipment initializes white and black level
data and takes in the scanning compensation reference data.
(1) Press the 0 and 5 keys in this order in the initial stage of the maintenance mode.
The "WHITE LEVEL 1" will appear on the LCD.
(2) The equipment prints out the scanning compensation data list containing the following:
a) Black/white data graph
b) Bright output adjustment value (REFH-PWM) 1Byte
c) Illuminant adjustment value (LED-DATA:R) 1Byte
d) Illuminant adjustment value (LED-DATA:G) 1Byte
e) Illuminant adjustment value (LED-DATA:B) 1Byte
f) Black level MIN data 1Byte
g) Black level MAX data 1Byte
h) White level MIN data (R) 1Byte
i) White level MIN data (G) 1Byte
j) White level MIN data (B) 1Byte
k) White level MAX data (R) 1Byte
l) White level MAX data (G) 1Byte
m) White level MAX data (B) 1Byte
n) Background color compensated data 1Byte
o) Black level data 4960Byte
p) White level data (R) 4960Byte
q) White level data (G) 4960Byte
r) White level data (B) 4960Byte
(3) Upon completion of recording of the compensation data list, the equipment returns to the
initial stage of the maintenance mode.
NOTE: If any data is abnormal, its mode will be printed in inline style, as shown on the
next page.

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