Brother MFC-L2700D Service Manual

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Confidential
1.4 Setting Serial Number and Entering Adjusted Value of Laser Unit ..................................... 4-4
1.5 Acquiring White Level Data (Function code: 55) ................................................................ 4-5
1.6 Adjusting Touch Panel (Function code: 61) (Touch panel models only) ............................ 4-5
2. IF YOU REPLACE THE LOW-VOLTAGE POWER SUPPLY PCB ASSY ................................. 4-6
2.1 Reset Irregular Power Supply Detection Counter of
the Low-voltage Power Supply PCB (Function code: 88) ................................................... 4-6
3. IF YOU REPLACE THE LASER UNIT ........................................................................................ 4-7
3.1 Entering Adjusted Value of Laser Unit ................................................................................ 4-8
4. IF YOU REPLACE THE PANEL UNIT OR PANEL PCB UNIT .................................................. 4-9
4.1 Installing Firmware (Touch panel models only) ................................................................ 4-10
4.1.1 Checking firmware version ................................................................................... 4-10
4.1.2 Installing firmware ................................................................................................ 4-10
4.2 Adjusting Touch Panel (Function code: 61) (Touch panel models only) .......................... 4-10
4.3 Checking LCD Operation (Function code: 12) .................................................................. 4-10
5. IF YOU REPLACE THE FIRST SIDE CIS UNIT OR DOCUMENT SCANNER UNIT ............... 4-11
5.1 Acquiring White Level Data (Function code: 55) .............................................................. 4-11
5.2 Scanning and Printing Check ........................................................................................... 4-11
6. IF YOU REPLACE THE ADF UNIT OR SECOND SIDE CIS UNIT .......................................... 4-12
6.1 Acquiring White Level Data (Function code: 55) (Duplex scanning models only) ............ 4-12
6.2 Scanning and Printing Check ........................................................................................... 4-12
CHAPTER 5 SERVICE FUNCTIONS
1. FUNCTION CODE ....................................................................................................................... 5-1
1.1 How to Enter Maintenance Mode ....................................................................................... 5-1
1.1.1 Method of entering maintenance mode for service personnel ............................... 5-1
1.1.2 Method of entering end-user accessible maintenance mode ................................. 5-2
1.2 List of Maintenance Mode Functions .................................................................................. 5-3
1.3 Details of Maintenance Mode Functions ............................................................................. 5-4
1.3.1 Initialize EEPROM parameters (function code: 01, 91) .......................................... 5-4
1.3.2 Print white level / black level data for document scanning compensation
(function code: 05) .................................................................................................. 5-5
1.3.3 ADF performance test (function code: 08) ............................................................. 5-7
1.3.4 Monochrome print quality test pattern (function code: 09) ..................................... 5-8
1.3.5 Set worker switches (WSW) and print worker switch setting data
(function code: 10, 11) ............................................................................................ 5-9
1.3.6 Check LCD operation (function code: 12) ............................................................ 5-12
1.3.7 Check control panel operation (function code: 13) ............................................... 5-14
1.3.8 Display software version (function code: 25) ........................................................ 5-15
1.3.9 Change OnePushDemo function setting (function code: 28) ............................... 5-16
1.3.10 Check sensor operation (function code: 32) ......................................................... 5-17
1.3.11 Display LAN connection status (function code: 33) .............................................. 5-19
1.3.12 Set PC print functions (function code: 43) ............................................................ 5-20
1.3.13 Change USB No. return value / Adjust left-end print start position on
second side when duplex printing (function code: 45) ......................................... 5-23

Brother MFC-L2700D Specifications

General

Print Technology	Laser
Print Resolution	Up to 2400 x 600 dpi
Duplex Printing	Yes
Paper Input Capacity	250 sheets
Monthly Duty Cycle	Up to 10, 000 pages
Functions	Print, Copy, Scan, Fax
ADF Capacity	35 sheets
Memory	32 MB
Fax Speed	33.6 Kbps
Print Speed	Up to 27 ppm
Connectivity	USB 2.0
Scanner Type	Flatbed
Copy Speed	Up to 27 cpm
Scan Resolution	Up to 600 x 2400 dpi
Display	2-line LCD