Table of Contents
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1-5-10 Others .................................................................................................................................. 1-5-49
(1) Detaching and refitting the main motor........................................................................... 1-5-49
and power source fan motor ...................................................................................................... 1-5-50
1-5-11 Document processor ........................................................................................................... 1-5-51
(1) Detaching and refitting the DP rear cover and DP front cover ....................................... 1-5-51
(2) Detaching and refitting the DP drive PWB...................................................................... 1-5-52
(3) Detaching and refitting the feed pulley and forwarding pulley ........................................ 1-5-53
(4) Detaching and refitting the separation pad assembly..................................................... 1-5-56
1-6 Requirements on PWB Replacement
1-6-1 Upgrading the firmware ......................................................................................................... 1-6-1
1-6-2 Remarks on control PWB replacement.................................................................................. 1-6-2
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............................................................................................... 2-1-2
(3) Paper conveying section .................................................................................................. 2-1-3
2-1-2 Drum section ......................................................................................................................... 2-1-4
(1) Drum section .................................................................................................................... 2-1-4
(2) Main charger unit.............................................................................................................. 2-1-5
2-1-3 Optical section ....................................................................................................................... 2-1-6
(1) Scanner unit ..................................................................................................................... 2-1-6
(2) Image scanner unit (ISU).................................................................................................. 2-1-7
(3) Laser scanner unit ............................................................................................................ 2-1-9
2-1-4 Developing section .............................................................................................................. 2-1-11
2-1-5 Transfer/separation section ................................................................................................. 2-1-13
2-1-6 Cleaning section .................................................................................................................. 2-1-14
2-1-7 Fuser section ....................................................................................................................... 2-1-16
2-1-8 Paper exit section ................................................................................................................ 2-1-18
2-1-9 Duplex/conveying section .................................................................................................... 2-1-20
2-1-10 Document processor ........................................................................................................... 2-1-21
(1) Original feed section....................................................................................................... 2-1-21
(2) Original conveying section.............................................................................................. 2-1-22
(3) Original switchback/eject sections.................................................................................. 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....................................................................................................... 2-2-3
(3) Other electrical components............................................................................................. 2-2-4
(4) Document processor ........................................................................................................ 2-2-5
2-3 Operation of the PWBs
2-3-1 Power source PWB ............................................................................................................... 2-3-1
2-3-2 Control PWB .......................................................................................................................... 2-3-4
2-3-3 Scanner PWB ...................................................................................................................... 2-3-11
2-3-4 DP drive PWB...................................................................................................................... 2-3-14
2MH/2MJ/2MK/2ML
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