Duplo DUPRINTER DP-430 - Chapter 2 Description of the Operation

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Chapter 2 Description of the Operation
z Scanner Section...........................................................32
1. Description...............................................................32
2. Sequence of Operation...........................................33
(1) Sequence of the Scanner Operation ..................33
(2) Sequence of the Scanner Operation (ADF).......33
(3) Operation with the Document
Cover Open / Closed ..........................................34
1. Reading the Document Size...........................34
2. Reading the Document Darkness..................34
2 Platemaking Area for the Selected Paper.....35
2 Platemaking Area for the Book Shadow
Erasing Mode..................................................35
3. Function of Parts and Circuit.............................36
(1) Home Position Sensors ......................................36
(2) Document Sensor ..............................................37
(3) Document Cover Sensor.....................................39
(4) CCD / Lamps ......................................................40
(5) Scanner Unit Open / Close Detection................41
x Platemaking / Master Feed / Ejection Section...........42
Platemaking /
Master Feed Section
........................42
1. Description...............................................................42
2. Sequence of Operation...........................................43
(1) Operation when the master set ........................43
(2) Platemaking / Master Feeding ..........................44
3. Function of Parts ....................................................45
(1) Thermal Head.....................................................45
(2) End Mark Sensor ...............................................48
1. Master Setting Error Detection......................49
2. Master End Detection......................................49
(3) Master Lead Edge Sensor..................................50
(4)
Master Detection Sensor...................................51
(5) Cutter Unit.........................................................52
(6) Master Feed Clutch (Electromagnetic clutch)..53
Master Ejection Section ...........................................54
1. Description...............................................................54
2. Circuit.......................................................................54
3. Function of Parts ....................................................55
(1) Master Ejection Sensor......................................55
1. Master Ejection Error Detection.....................55
2. Rotation Control of the Roll-up Motor............55
Master Clump opening/Closing Section ................56
1. Description...............................................................56
2. Operation of Master Clump Open / Close Lever ........57
(1) Structure.............................................................57
(2) Master Set / Removal Operation.......................58
(3) Clump Opening / Closing
Lever Position (A / B / C Mode) .........................59
3. Function of Parts ....................................................60
(1) A / B / C Mode Sensor.........................................60
4. Returning Operation Flowchart
When the Power is Cut Off Accidentally...............61
c Paper Feed Section .....................................................62
1. Description...............................................................62
2. Operation .................................................................63
(1) Rotation of the Paper Feed Roller and
Timing Roller.....................................................63
(2) Paper Feed Roller Drive.....................................64
(3) Driving of the Timing Roller..............................65
(4) Escape the Guide Roller.....................................66
(5) Paper Feed Length.............................................67
3. Function of Parts.....................................................68
(1) Printing Position Adjustment Mechanism .......68
(2) Double Feed Detection Mechanism...................70
(3) Elevator Top Limit Sensor.................................71
(4) Elevator Bottom Limit Sensor...........................72
(5) Paper Detection Sensor......................................73
(6) Long Paper Unit Mechanism( Option ) ............74