Brother DCP-7080 Service Manual page 8

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
v
Confidential