Brother MFC-9420CN Service Manual

Confidential
5-79
5.1.74 Paper Guide (C) PU / Paper Sensor (PT1, PEU) / OHP Sensor PU / Tray Empty Actuator
PU
(1) Disconnect the connector connecting to the paper sensor (PT1).
(2) Remove the setscrew (BT3x8, 2 pieces) of the paper guide (C) PU.
(3) Disconnect the connector connecting to each sensor of the paper guide (C) PU.
(4) Remove the paper guide (C) PU from the frame.
(5) Remove the paper sensor (PT1) from the paper guide (C) PU.
(6) Remove the setscrew (BT3x8, 2 pieces) fixing the OHP sensor PU.
(7) Remove the OHP sensor PU (Board) from the paper guide (C) PU.
(8) Remove the tray empty actuator PU from the paper guide (C) PU.
(9) Remove the harness from the paper sensor (PEU).
(10) Remove the paper sensor (PEU) from the paper guide (C) PU.
Fig. 5-123
BT3x8
Paper sensor (PT1)
Paper guide (C) PU
Frame
BT3x8
OHP sensor PU
Tray empty actuator PU
Paper sensor (PEU)
Harness
Connecto
r
Connecto
r
Connecto
r

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