Brother MFC-9420CN Service Manual

8-39 Confidential
[ 1 ] Margin Adjust (Code 43)


 Function
This function is to check and adjust the top margin and left margin.
The adjustment range is from –4.9mm max to +4.9mm max.
Always implement the operation when replacing the engine control board.
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
 Operating Procedure
(1) Select Margin Adjust with using the 4 or 5 key in the initial stage of the factory mode.
After selecting, press the 6 key.
The “43 MARGIN ADJUST / ► TOP / LEFT / LEFT1” appears on the LCD.
(2) Select the top margin (TOP) or left margin (LEFT or LEFT1) with using the 4 or 5 key.
After selecting, press the 6 key.
LEFT: For adjusting the left margin on the paper in the upper tray
LEFT1: For adjusting the left margin on the paper in the lower tray
<Example of LCD indication>
“43 TOP +2.5mm / - 1 0 1 2 3 4
6 7 +”
・The margin can be adjusted up to 4.9mm max. in the right and left sides from the
standard value “0” by 0.7mm pitch.
・Select the value according as the adjusted amount with using the 4 or 5 key. The
selected amount is displayed at the upper right side.
・Press the 6 key to set the adjustment value.
(3) Press the 3 key so that the display is returned to the message described in Step (1).
(4) Press the 3 key again, and the machine returns to the initial stage of the factory mode.
<How to measure>
1) Implement “GRID PRINT” in the service mode.
2) Measure A and B of the top margin.
(Leading Edge) (A+B) / 2
Default Value 4.2±1.5mm
3) Measure C and D of the left margin.
(Left Margin) (C+D) / 2
Default Value 4.2±1.5mm
A B
C
D
Fig. 8-14
Paper Feeding
Direction
Print
Guarantee
Area
Left Margin

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