1-5-12 Others .................................................................................................................................. 1-5-37
(4) Direction of installing the principal fan motors ................................................................ 1-5-40
1-6 Requirements on PWB Replacement
1-6-1 Upgrading the firmware ......................................................................................................... 1-6-1
(1) Engine PWB ..................................................................................................................... 1-6-3
(2) DP main PWB................................................................................................................... 1-6-3
(3) Main PWB......................................................................................................................... 1-6-4
2-1 Mechanical Construction
(3) Conveying section ............................................................................................................ 2-1-4
2-1-2 Drum section ......................................................................................................................... 2-1-5
2-1-3 Developing section ................................................................................................................ 2-1-7
2-1-4 Optical section ....................................................................................................................... 2-1-9
(1) Image scanner section ..................................................................................................... 2-1-9
(2) Laser scanner section .................................................................................................... 2-1-11
2-1-6 Fuser section ....................................................................................................................... 2-1-16
2-1-9 Document processor ........................................................................................................... 2-1-22
(1) Original feed section....................................................................................................... 2-1-22
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) Others............................................................................................................................... 2-2-8
2-3 Operation of the PWBs
2-3-1 Main PWB.............................................................................................................................. 2-3-1
2-3-2 Engine PWB .......................................................................................................................... 2-3-7
2-3-3 Power source PWB ............................................................................................................. 2-3-20
2-3-4 IH PWB ................................................................................................................................ 2-3-23
2-3-6 DP main PWB...................................................................................................................... 2-3-31
2MY/2MZ