Brother HL-5030 - Page 6

TABLE OF CONTENTS
iv
2.2.3 Paper eject........................................................................................................................ 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-5040/5050/5070N only)................................ 3-24
2.3.4 Paper eject sensor............................................................................................................3-24
2.3.5 MP PE sensor ................................................................................................................... 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...............................................................................................................3-26
2.6 Print Process ..................................................................................................................3-26
2.6.1 Charging ...........................................................................................................................3-26
2.6.2 Exposure stage.................................................................................................................3-27
2.6.3 Developing........................................................................................................................3-28
2.6.4 Transfer.............................................................................................................................3-28
2.6.5 Fixing stage.......................................................................................................................3-29
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.................................................................................................................. 4-14
3.5 Rear Cover C .................................................................................................................. 4-14
3.6 Outer Chute (for HL-5030/5040 only) ............................................................................. 4-15
3.7 Rear Cover MP ASSY /Outer Chute MP ASSY (for HL-5050/5070N only) ................... 4-16
3.8 Rear Cover L/R ............................................................................................................... 4-17
3.9 Side Cover L/R ............................................................................................................... 4-18
3.10 Top Cover ....................................................................................................................... 4-19
3.11 Front Cover ASSY (for HL-5030/5040 only) ................................................................... 4-22
3.12 MP Unit (for HL-5050/5070N only) ................................................................................. 4-23
3.13 Fixing Unit ....................................................................................................................... 4-29
3.14 Laser Unit ....................................................................................................................... 4-38
3.15 Main PCB ........................................................................................................................ 4-40
3.16 Base Plate/ LV Insulation Sheet ..................................................................................... 4-42
3.17 Engine PCB .................................................................................................................... 4-43
3.18 High-voltage PS PCB ASSY ........................................................................................... 4-44
3.19 Low-voltage PS PCB ASSY ............................................................................................ 4-45
3.20 Paper Feeder .................................................................................................................. 4-46
3.21 Frame L/ Drive Unit......................................................................................................... 4-54
3.22 Fan Motor 60 Unit LV/ Fan Motor 60 Unit ....................................................................... 4-58
3.23 Frame R .......................................................................................................................... 4-59
4. PACKING .............................................................................................................. 4-61