Brother MFC-8370DN Service Manual

Confidential
CHAPTER 7 SERVICE FUNCTIONS
The maintenance mode is exclusively designed for the purpose of checks, settings and
adjustments using the buttons on the control panel or open/close of the front cover. You can
perform operational checks of panel PCB, sensors, perform a print test, display the log
information or error codes.
CONTENTS
1. ENTRY INTO THE MAINTENANCE MODE.................................................................. 7-1
2. LIST OF MAINTENANCE-MODE FUNCTIONS ...........................................................7-2
3. USER-ACCESS TO THE MAINTENANCE MODE .......................................................7-3
4. DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS........................ 7-4
4.1 EEPROM Parameter Initialization (Function code 01/91) .....................................7-4
4.2 Printout of Scanning Compensation Data (Function code 05) ..............................7-5
4.3 Placement of Document Scanner Unit in Position for Transportation
(Function code 06)............................................................................................... 7-11
4.4 ADF Performance Test (Function code 08) .........................................................7-12
4.5 Test Pattern 1 (Function code 09) ....................................................................... 7-13
4.6 Firmware Switch Setting and Printout ................................................................. 7-14
4.6.1 Firmware switch setting (Function code 10).............................................7-14
4.6.2 Printout of firmware switch data (Function code 11) ................................ 7-18
4.7 Operation Check of LCD (Function code 12) ......................................................7-19
4.8 Operational Check of Control Panel Button (Function code 13).......................... 7-20
4.9 ROM Version Check (Function code 25) ............................................................. 7-22
4.10 Sensor Operational Check (Function code 32) ...................................................7-23
4.11 PC Print Function (Function code 43) ................................................................. 7-25
4.12 Switching the USB Setting (Function code 45).................................................... 7-28
4.13 EEPROM Customizing (User-accessible) (Function code 52) ............................ 7-29
4.14 Received Data Transfer Function (Function code 53) (only model with FAX) .....7-30
4.15 Fine Adjustment of Scan Start/End Positions (Function code 54) .......................7-32
4.16 Acquisition of White Level Data
and CCD Scanner Area Setting (Function code 55)............................................7-34
4.17 Paper Feeding and Ejecting Test (Function code 67).......................................... 7-36
4.18 EEPROM Customizing (Function code 74) .........................................................7-36
4.19 Printout of maintenance information (Function code 77).....................................7-39
4.20 Operational Check of Fans (Function code 78)................................................... 7-40
4.21 Display of the Machine’s Log Information (Function code 80).............................7-41
4.22 Error Code Indication (Function code 82)............................................................7-43
4.23 Output of Transmission Log to the Telephone Line (Function code 87) .............. 7-43
4.24 Counter Reset After Replacing the Fuser Unit,
Laser Unit and Paper Feed Kit (Function code 88) ............................................. 7-44
4.25 Maintenance Mode Finish (Function code 99) ....................................................7-44

Brother MFC-8370DN Specifications

General

Duplex printing	Yes
Print technology	Laser
Maximum resolution	1200 x 1200 DPI
Time to first page (black, normal)	8.5 s
Print speed (black, normal quality, A4/US Letter)	28 ppm
Input color depth	48 bit
Optical scanning resolution	600 x 2400 DPI
Copier resize	25 - 400 %
Maximum copy resolution	1200 x 600 DPI
Maximum number of copies	99 copies
N-in-1 copy function (N=)	2, 4, 9, 16, 25
Copy speed (black, normal quality, A4)	28 cpm
Faxing	Mono faxing
Fax memory	500 pages
Modem speed	33.6 Kbit/s
Total input capacity	250 sheets
Total output capacity	150 sheets
Multi-Purpose tray input capacity	50 sheets
Auto document feeder (ADF) input capacity	20 sheets
Display	LCD
Product color	Grey, White
Market positioning	Home & office
Display number of lines	2 lines
Display number of characters	16
Card reader integrated	-
Sound power level (standby)	30 dB
Sound pressure level (printing)	56 dB
Paper tray media types	Bond paper, Envelopes, Labels, Plain paper, Recycled paper, Transparencies
Non-ISO print media sizes	Executive
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 163 g/m²
Standard interfaces	Ethernet, USB 2.0
USB 2.0 ports quantity	1
Dimensions (WxDxH)	531 x 451 x 475 mm
All-in-one functions	Copy, Fax, Scan
Color all-in-one functions	Scan
Power consumption (standby)	85 W
Power consumption (average operating)	680 W
Package weight	21100 g
Digital sender	No
Maximum duty cycle	- pages per month

Weight and Dimensions

Depth	443 mm
Width	390 mm
Height	442 mm