Brother MFC-9420CN Service Manual

Confidential
9-12
Error Code
(Hex)
Symptom Probable Cause
Solution
Hook of the front open
switch on the front
cover broken
Replace the front cover.
A1 Front cover (scanner unit)
opened.
Front open switch
broken
Replace the front open
switch.
Document jam Remove the jammed
document.
Document rear sensor
actuator caught on the
surrounding parts
Correct the surrounding
parts on which the
actuator caught.
A2 Document length exceeding
the scan limitation.
During scanning, 90 cm or
longer of a document is
detected.
During document feeding or
ejecting, 400 cm or longer of a
document is detected.
Document rear sensor
broken
Replace the document
rear sensor.
Document jam Remove the jammed
document.
Document rear sensor
actuator caught on the
surrounding parts
Correct the surrounding
parts on which the
actuator caught.
A3
The document rear sensor does
not come ON during document
pull-in operation.
Document rear sensor
broken
Replace the document
rear sensor.
A4 50% or more faulty of white
level data. (Not used.)
---
---
A5
FAX scanning failure.
(1st time)
CIS defective
White-level reference
film stained in the
scanner cover
Replace the scanner cover
(scanner unit).
A6 FAX scanning failure. (retry)
Main PCB defective Replace the main PCB.
A7-AA Not used.
CIS defective. Replace the scanner cover
(scanner unit).
AB CIS Resolution failure.
Main PCB defective Replace the main PCB.
AC Less than 50% faulty of white
level data. (Not used.)
--- ---
AD-AE Not used.

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