Brother HL-6050DN Manual de serviço - Página 5
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TABLE OF CONTENTS
1.5.2 High-voltage Power Supply ............................................................................................... 3-16
2.
MECHANICS ...........................................................................................................3-17
2.1
Overview of Printing Mechanism ................................................................................... 3-17
2.2
Paper Transfer ............................................................................................................... 3-18
2.2.1 Paper supply ..................................................................................................................... 3-18
2.2.2 Paper tray lift function ....................................................................................................... 3-18
2.2.3 Paper particle remover unit ............................................................................................... 3-19
2.2.4 Paper registration.............................................................................................................. 3-20
2.2.5 Paper eject........................................................................................................................ 3-21
2.2.6 Duplex printing (HL-6050D/6050DN only) ......................................................................... 3-21
2.3
Sensors .......................................................................................................................... 3-22
2.3.1 Document cover sensor .................................................................................................... 3-22
2.3.2 Fixing sensor PCB ASSY.................................................................................................. 3-22
2.3.3 Photo interrupter ............................................................................................................... 3-23
2.3.4 Toner sensor PCB unit / Toner LED PCB ASSY............................................................... 3-23
2.3.5 Relay PCB unit.................................................................................................................. 3-24
2.3.6 PE/PO sensor PCB ASSY ................................................................................................ 3-24
2.3.7 DEV sensor ASSY ............................................................................................................ 3-25
2.3.8 MP sensor PCB ASSY ...................................................................................................... 3-25
2.4
Drum Unit ....................................................................................................................... 3-26
2.4.1 Photosensitive drum.......................................................................................................... 3-26
2.4.2 Primary charger................................................................................................................. 3-26
2.4.3 Transfer roller.................................................................................................................... 3-26
2.4.4 Cleaner ............................................................................................................................. 3-26
2.5
Toner Cartridge .............................................................................................................. 3-27
2.5.1 Toner empty mode ............................................................................................................ 3-27
2.5.2 New toner detection boss.................................................................................................. 3-28
2.6
Print Process.................................................................................................................. 3-29
2.6.1 Charging ........................................................................................................................... 3-29
2.6.2 Exposure stage ................................................................................................................. 3-29
2.6.3 Pressure contact and release unit..................................................................................... 3-31
2.6.4 Developing ........................................................................................................................ 3-31
2.6.5 Transfer............................................................................................................................. 3-32
2.6.6 Fixing stage....................................................................................................................... 3-32
CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY ............................. 4-1
1.
SAFETY PRECAUTIONS..........................................................................................4-1
2.
DISASSEMBLY FLOW ..............................................................................................4-2
3.
DISASSEMBLY PROCEDURE .................................................................................4-3
3.1
AC Cord ........................................................................................................................... 4-3
3.2
Drum Unit ......................................................................................................................... 4-3
3.3
Paper Tray ....................................................................................................................... 4-4
3.4
Access Cover ................................................................................................................... 4-7
3.5
Network Board ................................................................................................................. 4-7
3.6
DX Feed ASSY ................................................................................................................ 4-8
3.7
Rear Cover ASSY .......................................................................................................... 4-12
3.8
Top Cover ASSY............................................................................................................ 4-13
3.9
Side Cover L .................................................................................................................. 4-15
3.10 Side Cover R.................................................................................................................. 4-16
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