Brother MFC-9420CN Service Manual

Confidential
9-13
Error Code
(Hex)
Symptom Probable Cause
Solution
CIS flat cable broken or
not connected
Correct the cable
connection.
Replace the scanner cover
(scanner unit).
CIS motor harness not
connected properly
Correct the harness
connection.
CIS defective Replace the scanner cover
(scanner unit).
AF CIS positioning error.
Main PCB defective Replace the main PCB.
B0 Not used.
B1 Dark level offset data level
error for scanning.
(Not used.)
--- ---
B2 Gain control data level error
for scanning. (Not used.)
---
---
B3 Scan area left edge detection
error. (Not used.)
--- ---
B4 Scan area right edge detection
error. (Not used.)
--- ---
B5 Horizontal scanning edge
reduction detection error in
scanning area setting
(Not used.)
--- ---
B6 Horizontal scanning edge
enlargement detection error in
scanning area setting
(Not used.)
--- ---
B7 A/D converter reference
voltage error (at High level).
Main PCB defective Replace the main PCB.
B8 A/D converter reference
voltage error (at Low level).
(Not used.)
--- ---
CIS defective Replace the scanner cover
(scanner unit).
B9 Light emission intensity error
of the LED array (Exceeding
the upper limit).
Main PCB defective Replace the main PCB.
BA Not used.
CIS defective Replace the scanner cover
(scanner unit).
BB White level data error.
Main PCB defective Replace the main PCB.
BC Not used.
CIS defective Replace the scanner cover
(scanner unit).
BD Black level data error.
Main PCB defective Replace the main PCB.
BE Scan starting edge detection
error. (Not used.)
--- ---
BF-CF 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