Table of Contents
Advertisement
(2) Detaching and refitting the engine PWB......................................................................... 1-5-43
(3) Detaching and refitting the power source PWB.............................................................. 1-5-45
(4) Detaching and refitting the high voltage PWB ................................................................ 1-5-47
(5) Detaching and refitting the operation PWB .................................................................... 1-5-48
(6) Detaching and refitting the fuser heater PWB ................................................................ 1-5-52
1-5-8 Drive section ........................................................................................................................ 1-5-57
(1) Detaching and refitting the drum drive unit..................................................................... 1-5-57
(2) Detaching and refitting the developer drive unit ............................................................. 1-5-58
(3) Detaching and refitting the fuser drive unit and feed drive unit ...................................... 1-5-59
(4) Detaching and refitting the lift motor 1 and 2.................................................................. 1-5-65
1-5-9 Others .................................................................................................................................. 1-5-66
(1) Detaching the eject filter ................................................................................................. 1-5-66
(2) Detaching and refitting the toner filter............................................................................. 1-5-67
(3) Detaching and refitting the belt filter ............................................................................... 1-5-68
(4) Detaching and refitting the hard disk unit ....................................................................... 1-5-69
(5) Detaching and refitting the eject unit .............................................................................. 1-5-71
1-6 Requirements on PWB Replacement
1-6-1 Upgrading the firmware ......................................................................................................... 1-6-1
1-6-2 Remarks on main PWB replacement..................................................................................... 1-6-2
1-6-3 Remarks on engine PWB replacement ................................................................................. 1-6-4
2-1 Mechanical Construction
2-1-1 Paper feed/conveying section ............................................................................................... 2-1-1
(1) Cassette paper feed section............................................................................................. 2-1-1
(2) MP tray paper feed section............................................................................................... 2-1-3
(3) Paper conveying section .................................................................................................. 2-1-5
2-1-2 Drum section ......................................................................................................................... 2-1-8
2-1-3 Developer section ................................................................................................................ 2-1-10
2-1-4 Optical section ..................................................................................................................... 2-1-12
(1) Image scanner section ................................................................................................... 2-1-12
(2) Laser scanner section .................................................................................................... 2-1-14
2-1-5 Transfer/Separation section ................................................................................................ 2-1-17
(1) Transfer belt unit section ................................................................................................ 2-1-17
2-1-6 Fuser section ....................................................................................................................... 2-1-19
2-1-7 Eject/Feedshift section ........................................................................................................ 2-1-21
2-1-8 Duplex conveying section .................................................................................................... 2-1-23
2-2 Electrical Parts Layout
2-2-1 Electrical parts layout ............................................................................................................ 2-2-1
(1) PWBs................................................................................................................................ 2-2-1
(2) Switches and sensors....................................................................................................... 2-2-4
(3) Motors............................................................................................................................... 2-2-6
(4) Fan motors ....................................................................................................................... 2-2-8
(5) Others............................................................................................................................... 2-2-9
2-3 Operation of the PWBs
2-3-1 Main PWB.............................................................................................................................. 2-3-1
2-3-2 Engine PWB ........................................................................................................................ 2-3-11
2-3-3 Power source PWB ............................................................................................................. 2-3-29
2-3-4 ISC PWB ............................................................................................................................. 2-3-33
2-3-5 Operation PWB 1................................................................................................................. 2-3-38
2-3-6 Front PWB ........................................................................................................................... 2-3-43
2LL/2LJ/2LH
Advertisement
Table of Contents
