(1) Detaching and refitting the fuser unit...............................................................................................1-5-14
(2) Detaching and refitting the fuser heater lamp .................................................................................1-5-15
(3) Detaching and refitting the heat roller .............................................................................................1-5-17
(4) Detaching and refitting the press roller............................................................................................1-5-18
(5) Detaching and refitting the fuser thermistor M, fuser thermistor S, and thermal cutout ..................1-5-19
1-5-8 PWBs ....................................................................................................................................................1-5-22
(1) Detaching and refitting the engine PWB .........................................................................................1-5-22
(2) Detaching and refitting the main PWB ............................................................................................1-5-26
(3) Detaching and refitting the power source unit .................................................................................1-5-28
1-5-9 Others ...................................................................................................................................................1-5-30
(1) Detaching and refitting the paper feed drive unit.............................................................................1-5-30
(2) Detaching and refitting the main drive unit ......................................................................................1-5-31
(3) Detaching and refitting the laser scanner unit .................................................................................1-5-32
1-6 Firmware
1-6-1 Downloading firmware ............................................................................................................................1-6-1
(1) Downloading the firmware from the parallel interface .......................................................................1-6-2
(2) Downloading the firmware from the memory card.............................................................................1-6-3
(3) Downloading the firmware from the USB memory ............................................................................1-6-5
2-1 Mechanical Construction
2-1-1 Paper feed section..................................................................................................................................2-1-1
(1) Paper cassette paper feed section....................................................................................................2-1-1
(2) MP tray paper feed section ...............................................................................................................2-1-2
(3) Paper feed conveying section ...........................................................................................................2-1-3
2-1-2 Drum section...........................................................................................................................................2-1-4
(1) Drum section .....................................................................................................................................2-1-4
2-1-3 Expose section........................................................................................................................................2-1-5
(1) Laser scanner unit.............................................................................................................................2-1-5
2-1-4 Developing section..................................................................................................................................2-1-7
(1) Developing section............................................................................................................................2-1-7
2-1-5 Transfer/separation section ....................................................................................................................2-1-8
(1) Transfer/separation section...............................................................................................................2-1-8
2-1-6 Cleaning section .....................................................................................................................................2-1-9
2-1-7 Fuser section ........................................................................................................................................2-1-10
(1) Fuser unit ........................................................................................................................................2-1-10
2-1-8 Paper exit section/rear unit ...................................................................................................................2-1-12
(1) Paper exit section/rear unit..............................................................................................................2-1-12
2-1-9 Duplex conveying section .....................................................................................................................2-1-14
(1) Duplex conveying section................................................................................................................2-1-14
2-2 Electrical Parts Layout
2-2-1 Electrical parts layout..............................................................................................................................2-2-1
(1) Electrical parts layout ........................................................................................................................2-2-1
2-3 Operation of the PWBs
2-3-1 Power source unit ...................................................................................................................................2-3-1
2-3-2 Engine PWB............................................................................................................................................2-3-3
2-3-3 Main PWB ...............................................................................................................................................2-3-9
2-4 Appendixes
(1) Wiring diagram (30/31 ppm printer [EUR/USA model]).....................................................................2-4-1
(2) Wiring diagram (35/37 ppm printer [EUR/USA model]).....................................................................2-4-2
(3) Wiring diagram (45/47 ppm printer [EUR/USA model]).....................................................................2-4-3
(4) Repetitive defects gauge...................................................................................................................2-4-4
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