Brother MFC-9420CN Service Manual

Confidential
5-43
5.1.25 Erase Lamp PU
(1) Remove the knob screw (2 pieces) of the transfer unit PU from rear.
(2) Holding the band provided at the top side of the transfer unit PU, pull out the transfer unit
PU from the inside of the frame. In this instance, do not cause the belt surface touch the
peripheral parts.
(3) Remove the setscrew (BT3x8, 2 pieces) fixing the erase lamp PU to the sensor base (TB).
(4) Disconnect the harness connector connecting to the erase lamp PU.
(5) Remove the erase lamp PU from the sensor base (TB).
CAUTION
• Do not scratch the belt surface.
• Do not touch the belt surface with bare hands.
• When replacing the erase ramp board, do not touch the transfer belt surface with your
bare hands.
Fig. 5-69
NOTE: Adjustment is required when the transfer unit is changed. Please refer to chapter 6.
Knob screw
Transfer unit PU
BT3x8
BT3x8
Erase lamp PU
Sensor base (TB)

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