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Brother MFC-7320 Service Manual

Brother MFC-7320
315 pages
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1-12
Confidential
Error code 71
Laser unit Polygon mirror motor failure
(Cannot detect the period signal of the polygon mirror motor.)
Error code 72
BD beam detect sensor malfunction
Error code 76
Fuser unit failure (The center thermistor detects rapidly rising temperature.)
Error code 77
Fuser error code failure (The error history of the fuser unit is deleted.)
Print Unable 71
See Troubleshooting and routine maintenance chapter in User’s Guide.
Print Unable 72
See Troubleshooting and routine maintenance chapter in User’s Guide.
Step Cause Remedy
1
Laser unit harness connection
failure
Check the two harness connections of the
laser unit and reconnect them.
2 Laser unit failure Replace the laser unit.
3 Main PCB failure Replace the main PCB ASSY.
Print Unable 76
See Troubleshooting and routine maintenance chapter in User’s Guide.
Step Cause Remedy
1
Fuser unit harness connection
failure
Check the harness connection of the fuser
unit and reconnect it.
2 Fuser unit failure Replace the fuser unit.
Print Unable 77
See Troubleshooting and routine maintenance chapter in User’s Guide.
Step Cause Remedy
1 Fuser unit failure Replace the fuser unit.
2 Main PCB failure Replace the main PCB ASSY.

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Brother MFC-7320 Specifications

General IconGeneral
Print technologyLaser
Maximum resolution2400 x 600 DPI
Time to first page (black, normal)10 s
Print speed (black, normal quality, A4/US Letter)18 ppm
Copier resize25 - 400 %
PC free copyingYes
Maximum copy resolution600 x 600 DPI
Copy speed (black, normal quality, A4)11 cpm
FaxingMono faxing
Fax memory400 pages
Fax speed dialing (max numbers)200
Total input capacity250 sheets
Total output capacity100 sheets
Multi-Purpose tray input capacity1 sheets
Auto document feeder (ADF) input capacity35 sheets
Sound power level (standby)32 dB
Sound pressure level (printing)53 dB
Standard interfacesUSB 2.0
Dimensions (WxDxH)428 x 396 x 304 mm
All-in-one functionsCopy, Fax, Scan
Color all-in-one functionsscan, n
Compatible operating systemsWindows Vista, XP (32 & 64 bit); Windows 2000, Mac OS X 10.2.4 en recenter Linux printer driver
Power consumption (standby)75 W
Power consumption (PowerSave)9 W
Power consumption (average operating)320 W
DisplayLCD
Market positioningHome & office
Media weight (tray 1)60 - 105 g/m²
ISO A-series sizes (A0...A9)A4, A5, A6
ISO B-series sizes (B0...B9)B5, B6
Maximum ISO A-series paper sizeA4
Multi-Purpose Tray media weight60 - 163 g/m²
Bundled softwareScanSoft Paperport 11 SE+OCR, Newsoft Presto!, PageManager7 (Mac)
Package weight14.900 g
Grayscale levels256
Input color depth24 bit
Sustainability certificatesENERGY STAR

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