Brother DCP7020 User Manual

Brother

iv

Confidential

CHAPTER 5 DISASSEMBLY/REASSEMBLY AND LUBRICATION

5.1 DISASSEMBLY/REASSEMBLY ............................................................................... 5-1

Safety Precautions........................................................................................................5-1

Tightening Torque.........................................................................................................5-2

Preparation ...................................................................................................................5-3

How to Access the Object Component .........................................................................5-3

Disassembly Flowchart .................................................................................................5-4

Cord................................................................................................................ 5-5

5.1.2 Drum/Toner

ASSY................................................................................................ 5-5

Tray............................................................................................................ 5-6

Cover ........................................................................................................... 5-7

5.1.5 Rear Chute Cover ................................................................................................ 5-8

5.1.6 Side Cover L......................................................................................................... 5-9

5.1.7 Side Cover R ...................................................................................................... 5-10

Unit............................................................................................................. 5-11

5.1.9 Pull Arm/Pull Arm Guide/Lock Claw Pull Arm Spring......................................... 5-25

5.1.10 Scanner Unit....................................................................................................... 5-26

5.1.11 Panel Unit ........................................................................................................... 5-26

5.1.12 NCU PCB ........................................................................................................... 5-30

5.1.13 Speaker .............................................................................................................. 5-31

5.1.14 Joint Cover ASSY/Paper Stopper/Battery ASSY................................................ 5-33

5.1.15 Front Cover ........................................................................................................ 5-36

5.1.16 Pickup Roller Holder ASSY ................................................................................ 5-38

5.1.17 Fixing Unit .......................................................................................................... 5-42

5.1.18 High-Voltage PS PCB ASSY .............................................................................. 5-48

5.1.19 Main PCB ........................................................................................................... 5-49

5.1.20 PS PCB Unit ....................................................................................................... 5-51

5.1.21 Laser Unit ........................................................................................................... 5-54

5.1.22 Sub Chute ASSY................................................................................................ 5-56

5.1.23 Link Lever........................................................................................................... 5-57