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Brother MFC-9420CN Service Manual

Brother MFC-9420CN
428 pages
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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.

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Brother MFC-9420CN Specifications

General IconGeneral
Print technologyLaser
Maximum resolution1200 x 2400 DPI
Economical printingYes
Print speed (black, normal quality, A4/US Letter)31 ppm
Print speed (color, normal quality, A4/US Letter)8 ppm
Digital senderNo
Number of print cartridges4
Scanner typeFlatbed scanner
Scanner featuresScan to: e-mail, image, OCR, file
Copier resize25 - 400 %
Maximum copy resolution600 x 600 DPI
Maximum number of copies99 copies
Copy speed (black, normal quality, A4)31 cpm
Copy speed (color, normal quality, A4)8 cpm
FaxingColor faxing
Fax memory500 pages
Modem speed33.6 Kbit/s
Fax speed dialing (max numbers)200
Total input capacity750 sheets
Maximum input capacity250 sheets
Auto document feeder (ADF) input capacity35 sheets
Maximum internal memory576 MB
Bundled softwareScanSoft PaperPort Presto! PageManager
I/O portsIEEE-1284 USB 2.0
Dimensions (WxDxH)483.5 x 514 x 530 mm
Printer managementBRAdmin Professional, MIB-II
Networking features10Base-T/100Base-TX
All-in-one functionsFax, Scan
Color all-in-one functionscopy, fax, print, scan
Compatible operating systemsWindows 98(SE)/ Me/ NT WorkStation 4.0/ 2000 Professional/ XP Mac OS 9.1 - 9.2, Mac OS X 10.2.4+
Sustainability certificatesENERGY 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 positioningBusiness

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