Duplo Duprinter DP-43S - Chapter 2 Description of the Operation

84
Chapter 2 Description of the Operation
z Scanner Section ............................................................86
1. Description ...............................................................86
2. Sequence of Operation .............................................87
(1) Sequence of the Scanner Operation.......................87
(2) Operation with the Document
Cover Open / Closed ..............................................88
1. Reading the Document Size ................................88
2. Reading the Document Darkness .......................88
2 Platemaking Area for the Selected Paper ..........89
2 Platemaking Area for the Book Shadow
Erasing Mode .......................................................89
3. Function of Parts .....................................................90
(1) Home Position Sensor ............................................90
(2) Document Cover Sensor .........................................91
(3) CCD / Lamps...........................................................92
(4) Scanner Unit Open / Close Detection ....................93
x Platemaking / Master Feed / Ejection Section............94
<<Platemaking / Master Feed Section>> ........................94
1. Description ...............................................................94
2. Sequence of Operation .............................................95
(1) Sequence with the Master Set Switch ON ............95
(2) Platemaking / Master Feeding...............................96
3. Function of Parts .....................................................97
(1) Thermal Head.........................................................97
(2) End Mark Sensor..................................................102
1. Master Setting Error Detection ........................103
2. Master End Detection........................................104
(3) Cutter Unit ...........................................................105
(4) Master Feed Clutch (Electromagnetic clutch) ....106
<<Master Ejection Section>> .........................................107
1. Description .............................................................107
2. Circuit.....................................................................107
3. Function of Parts ...................................................108
(1) Master Ejection Sensor ........................................108
1. Plate Ejection Error Detection..........................108
2. Rotation Control of the Roll-up Motor..............108
<<Master Clump Opening / Closing Section>>............109
1. Description .............................................................109
2. Operation of Master Clump Open / Close Lever ........110
(1) Structure ...............................................................110
(2) Plate Attachment / Detachment Operation.........111
(3) Clump Opening / Closing
Lever Position (A / B / C Mode)............................112
3. Function of Parts ...................................................113
(1) A / B / C Mode Sensor ...........................................113
4. Returning Operation Flowchart
When the Power is Cut Off Accidentally ..............114
c Paper Feed Section .....................................................115
1. Description .............................................................115
2. Operation................................................................116
(1) Rotation of the Paper Feed Roller and
Timing Roller........................................................116
(2) Paper Feed Roller Drive .......................................117
(3) Driving of the Timing roller .................................118
(4) Escape the Guide roller ........................................119
(5) Paper Feed Length ...............................................120
3. Function of Parts....................................................121
(1) Paper Feed Clutch / Paper Feed Solenoid...........121
(2) Printing Position Adjustment Mechanism..........122
(3) Signal Lever..........................................................124
(4) Feed Tray (Elevator) Upper Limit Sensor...........126
(5) Feed Tray (Elevator) Lower Limit Sensor...........127
(6) Paper Switch.........................................................128