Brother MFC-9420CN Service Manual

6-4 Confidential
6.2 IF YOU REPLACE THE ENGINE CONTROL
BOARD PU
Transfer the data in the NVRAM from the PCB which has been used to the one which is newly
assembled.
(1) Prior to replacing the engine control board PU, confirm the contents of NVRAM regarding the
following subjects.
For the detail of how to enter the engine service mode, please refer to the description of 8.2.1
Entry into the Engine Service Mode.
For the information of Factory Mode function and operating procedure, please refer to the
pages described in the Reference Section below.
< Factory Mode >
Code Subject Confirmation Value
Reference
Section
(Chapter 8)
Top Margin set value
43 Margin Adjust
Left Margin set value
[1]
(Page 8-37)
LP Tune Up
Adjustment value
(“0” in ordinary case)
[3]-1
(Page 8-39)
THV Tune Up
Adjustment value
SIMPLEX (PPC/OHP/ENV/MTS/TS1/TS2) “0”
[3]-2
(Page 8-40)
DBV Tune Up
Adjustment value
(“0” in ordinary case)
[3]-3
(Page 8-41)
CBV Tune Up
Adjustment value
(“0” in ordinary case)
[3]-4
(Page 8-42)
45
FBV Tune Up
Adjustment value
(“0” in ordinary case)
[3]-5
(Page 8-42)
47 Total Page Set
Total print count [5]
(Page 8-43)
48 Each Image Set
Formed image count of 4 colors [6]
(Page 8-44)
49 Next Life Set
Print count for maintenance replacement parts [7]
(Page 8-45)
(2) Execute “46 NVRAM Initial” in the “Factory Mode”.
(3) After implementing the NVRAM initial, input the value confirmed in the procedure (1) to the
NVRAM for completing the setting.

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