Brother HL-4140CN Service Manual page 6

9.47 MP Sector Solenoid.............................................................................................. 3-117
9.48 T1 Paper Edge Sensor PCB ASSY/T1 Paper Edge Actuator/
T1 Paper Edge Actuator Spring............................................................................ 3-118
9.49 Cleaner Drive Gear 15.......................................................................................... 3-121
9.50 High-voltage Power Supply PCB ASSY ............................................................... 3-122
9.51 Waste Toner Sensor ............................................................................................. 3-125
9.52 Air Duct Cover/Blower .......................................................................................... 3-127
10. DISASSEMBLY PROCEDURE (LT-300CL) .........................................3-129
10.1 T2 Paper Tray Unit ............................................................................................... 3-129
10.2 T2 Separation Roller ASSY/T2 Paper Feed Roller ASSY 1 ................................. 3-131
10.3 T2 Cover Rear ...................................................................................................... 3-133
10.4 T2 Cover Left ........................................................................................................ 3-134
10.5 T2 Cover Right ..................................................................................................... 3-135
10.6 T2 Relay PCB ASSY ............................................................................................ 3-136
10.7 T2 Solenoid ASSY................................................................................................ 3-137
10.8 Collar 6 ................................................................................................................. 3-138
10.9 T2 Paper Feed Frame Unit ................................................................................... 3-139
CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS,
REQUIRED AFTER PARTS REPLACEMENT
1. IF YOU REPLACE THE MAIN PCB ASSY ................................................4-1
1.1 Rewriting the Firmware (Sub Firmware, Main Firmware) ........................................... 4-2
1.1.1 Checking firmware version ................................................................................ 4-2
1.1.2 Rewriting the firmware using computer ............................................................. 4-2
1.1.3 Rewriting the firmware using USB flash memory .............................................. 4-3
1.2 Initialization of EEPROM of Main PCB ASSY (Maintenance Mode: Code 01) ........... 4-4
1.3 Setting by Country (Maintenance Mode: Code 74) .................................................... 4-4
1.4 Setting the Serial Number .......................................................................................... 4-4
1.5 Sensitivity Adjustment of Density Sensor (Maintenance Mode: Code 72).................. 4-6
1.6 Performing the Developing Bias Voltage Correction (Maintenance Mode: Code 83) . 4-6
1.7 Performing the Adjustment of Inter-color Position Alignment
(Maintenance Mode: Code 66) ................................................................................... 4-6
2. IF YOU REPLACE THE REGISTRATION MARK SENSOR
HOLDER ASSY ..........................................................................................4-6
2.1 Sensitivity Adjustment of Density Sensor (Maintenance Mode: Code 72).................. 4-6
2.2 Performing the Developing Bias Voltage Correction (Maintenance Mode: Code 83) . 4-6
2.3 Performing the Adjustment of Inter-color Position Alignment
(Maintenance Mode: Code 66) ................................................................................... 4-6
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