Brother DCP-L8400CDN Service Manual page 9

CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS,
REQUIRED AFTER PARTS REPLACEMENT
1. IF YOU REPLACE THE MAIN PCB ASSY ................................................4-1
1.1 Installing the Firmware (Sub Firmware, Panel Firmware, Main Firmware,
and High-voltage Firmware) ....................................................................................... 4-2
1.1.1 Checking firmware version ................................................................................ 4-2
1.1.2 Installing the firmware........................................................................................ 4-3
1.2 Initializing the EEPROM of the Main PCB ASSY (Function code 01) ........................ 4-4
1.3 Setting the Serial Number (Function code 80) ........................................................... 4-5
1.4 Restore Machine Information (Function code 41) ...................................................... 4-5
1.5 Setting by Country (Function code 74) ....................................................................... 4-5
1.6 Motor Reset (Function code 57) ................................................................................. 4-5
1.7 Continuous Adjustments of Density and Registration Sensor (Function code 73) ..... 4-6
1.8 Acquisition of White Level Data (Function code 55) ................................................... 4-6
1.9 Adjustment of Touch Panel (Function code 61) .......................................................... 4-6
1.10 Restoration of States at Factory Shipment ............................................................... 4-6
2. IF YOU REPLACE THE REGISTRATION MARK SENSOR UNIT ............4-7
2.1 Continuous Adjustments of Density and Registration Sensor (Function code 73) ..... 4-7
3. IF YOU REPLACE THE LOW-VOLTAGE POWER SUPPLY PCB UNIT ..4-8
3.1 Reset of Irregular Power Supply Detection Counter of
Low-Voltage Power Supply PCB (Reset Counters for Parts (Function code 88)) ...... 4-8
4. IF YOU REPLACE THE PROCESS DRIVE UNIT......................................4-9
4.1 Motor Reset (Function code 57) ................................................................................. 4-9
5. IF YOU REPLACE THE HIGH-VOLTAGE POWER SUPPLY
PCB ASSY................................................................................................4-10
5.1 Installing the Firmware.............................................................................................. 4-10
5.1.1 Checking firmware version .............................................................................. 4-10
5.1.2 Installing the firmware...................................................................................... 4-10
5.2 Continuous Adjustments of Density and Registration Sensor
(Function code 73).................................................................................................... 4-10
6. IF YOU REPLACE THE LCD PANEL ASSY OR
PANEL CONTROL PCB ASSY................................................................4-11
6.1 Installing the Firmware.............................................................................................. 4-11
6.1.1 Checking firmware version .............................................................................. 4-11
6.1.2 Installing the firmware...................................................................................... 4-11
6.2 Adjustment of Touch Panel (Function code 61) ........................................................ 4-11
6.3 Operational Check of LCD (Function code 12)......................................................... 4-11
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