Brother HL-5130 Service Manual page 6

TABLE OF CONTENTS
2.2.2 Paper registration.............................................................................................................. 3-21
2.2.3 Paper eject........................................................................................................................ 3-22
2.2.4 Duplex printing (HL-5150D/HL-5170DN only) ................................................................... 3-22
2.3 Sensors .......................................................................................................................... 3-23
2.3.1 Cover sensors ................................................................................................................... 3-23
2.3.2 Toner sensors ................................................................................................................... 3-23
2.3.3 Cassette sensor / Paper empty sensor (HL-5140/5150D/5170DN only) ........................... 3-24
2.3.4 Paper eject sensor ............................................................................................................ 3-24
2.3.5 MP PE sensor (HL-5150D/HL-5170DN)............................................................................ 3-25
2.3.6 DX sensor (HL-5150D/HL-5170DN) .................................................................................. 3-25
2.3.7 Regist sensor .................................................................................................................... 3-26
2.3.8 Rear cover sensor (HL-5150D/5170DN) ........................................................................... 3-26
2.4 Drum Unit ....................................................................................................................... 3-27
2.4.1 Photosensitive drum.......................................................................................................... 3-27
2.4.2 Primary charger................................................................................................................. 3-27
2.4.3 Transfer roller.................................................................................................................... 3-27
2.4.4 Cleaner ............................................................................................................................. 3-27
2.5 Toner Cartridge .............................................................................................................. 3-27
2.6 Print Process.................................................................................................................. 3-27
2.6.1 Charging ........................................................................................................................... 3-27
2.6.2 Exposure stage ................................................................................................................. 3-28
2.6.3 Developing ........................................................................................................................ 3-29
2.6.4 Transfer............................................................................................................................. 3-29
2.6.5 Fixing stage....................................................................................................................... 3-30
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 DX Feed ASSY .............................................................................................................. 4-14
3.5 Access Cover ................................................................................................................. 4-17
3.6 Rear Cover C ................................................................................................................. 4-17
3.7 Outer Chute (for HL-5130/5140 only) ............................................................................ 4-18
3.8 Rear Cover MP ASSY /Outer Chute MP ASSY (for HL-5150D/5170DN only) ............. 4-19
3.9 Rear Cover L/R .............................................................................................................. 4-20
3.10 Side Cover L/R............................................................................................................... 4-21
3.11 Top Cover ...................................................................................................................... 4-22
3.12 Front Cover ASSY (for HL-5130/5140 only) .................................................................. 4-25
3.13 MP Unit (for HL-5150D/5170DN only) ........................................................................... 4-26
3.14 Fixing Unit ...................................................................................................................... 4-32
3.15 Rear Cover Sensor (HL-5150D/5170DN)...................................................................... 4-41
3.16 Laser Unit....................................................................................................................... 4-41
3.17 Main PCB ....................................................................................................................... 4-43
3.18 Base Plate/ LV Insulation Sheet .................................................................................... 4-45
3.19 DX-Sensor PCB ASSY (HL-5150D/5170DN) ................................................................ 4-46
3.20 Engine PCB.................................................................................................................... 4-47
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