AR-D17-19 (serv.man2). AR-D17 18 19 Service Manual - Sharp Copying Equipment Service Manual (repair manual). Page 12

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AR-D17/D18/D19  INTERNAL STRUCTURE  3 - 6
C. Cross sectional view
No.
Name
Function/Operation
1
Idle roller
Presses the ADU roller 1 onto paper.
2
ADU roller 1
Transports paper from the reverse unit.
3
Idle roller
Presses the ADU roller 2 onto paper.
4
ADU roller 2
Transports paper.
5
Idle roller 
Presses the ADU roller 3 onto paper.
6
ADU roller 3
Transports paper.
7
Idle roller
Presses the ADU roller 4 onto paper.
8
ADU roller 4
Transports paper.
9
Idle roller
Presses the ADU roller 5 onto paper.
10
ADU roller 5
Aligns paper then transports paper from ADU to the desk.
11
Idle roller
Reduces the paper transport loads.
12
Vertical transport roller upper
Transports paper from the desk to the main unit.
13
Idle roller
Presses the transport roller upper onto paper.
14
Idle roller
Reduces the paper pickup load on the vertical transport roller upper.
15
Vertical transport roller 
Transports paper.
16
Idle roller
Presses the transport roller onto paper.
17
Idle roller
Reduces the paper pickup load on the vertical transport roller.
18
Paper feed roller
Transports paper in the paper tray.
19
Paper pickup roller
Picks up to transport paper in the paper tray.
20
Separation roller
Separates to transport paper in the paper tray.
21
Paper tray paper feed unit
Picks up and separates and transports paper in the paper tray.
22
Idle roller
Presses the vertical transport roller onto paper.
23
Vertical transport roller
Transport paper.
24
Idle roller
Reduces the paper pickup load on the vertical transport roller.
25
Paper tray paper feed unit
Picks up and separates and transports paper in the paper tray.
26
Separation roller
Separates and transports paper in the paper tray.
27
Paper feed roller
Transports paper in the paper tray.
28
Paper pickup roller 
Picks up and transports paper in the paper tray.
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