Brother HL-L9300CDW Service Manual page 8

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 ASSY4-10
5.1 Installing the Firmware
(Sub Firmware, Panel Firmware, Main Firmware, and High-voltage Firmware)....... 4-11
5.1.1 Checking firmware version .............................................................................. 4-11
5.1.2 Installing the firmware...................................................................................... 4-11
5.2 Continuous Adjustments of Density and Registration Sensor
(Function code 73).................................................................................................... 4-11
6. IF YOU REPLACE THE TOP COVER ASSY, LCD PANEL ASSY OR
PANEL CONTROL PCB ASSY
(MODEL WITH TOUCH PANEL ONLY) ..................................................4-12
6.1 Installing the Firmware.............................................................................................. 4-12
6.1.1 Checking firmware version .............................................................................. 4-12
6.1.2 Installing the firmware...................................................................................... 4-12
6.2 Adjustment of Touch Panel (Function code 61) ........................................................ 4-13
6.3 Operational Check of LCD (Function code 12)......................................................... 4-13
7. IF YOU REPLACE THE TOP COVER ASSY, PANEL COVER ASSY,
PANEL PCB ASSY, LCD
(MODEL WITHOUT TOUCH PANEL ONLY) ...........................................4-14
7.1 Operational Check of LCD (Function code 12)......................................................... 4-14
7.2 Operational Check of Control Panel Key (Function code 13) ................................... 4-14
8. IF YOU REPLACE THE LASER UNIT .....................................................4-15
8.1 Continuous Adjustments of Density and Registration Sensor
(Function code 73).................................................................................................... 4-15
8.2 Counter Reset of Laser Unit (Reset Counters for Parts (Function code 88)) ........... 4-15
9. IF YOU REPLACE THE FUSER UNIT/
PF KIT 1, 2, 3, AND MP ...........................................................................4-16
9.1 Counter Reset of Fuser Unit or PF Kit 1, 2, 3, and MP
(Reset Counters for Parts (Function code 88))......................................................... 4-16
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