AR-D17-19 (serv.man2). AR-D17 18 19 Service Manual - Sharp Copying Equipment Service Manual (repair manual). Page 9

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AR-D17/D18/D19  INTERNAL STRUCTURE  3 - 3
2. AR-D18
A. Motors, clutches, solenoids
B. PWB, sensors
No.
Name
Code
Function/Operation
1
Paper feed drive motor
DM
Drives the paper feed section and the paper transport section. 
2
Lift motor
DLM
Drives the lift plate. 
3
Transport clutch
DTRC
Controls ON/OF of the transport roller. 
4
Paper feed clutch
DPFC
Controls ON/OFF of the paper feed roller. 
5
Pickup solenoid
DPFS
Presses the paper pickup roller onto paper.
No.
Name
Code
Function/Operation
1
Desk control PWB
Controls and drives the desk and reverse control.
2
Paper empty sensor
DPED
Senses paper empty in the paper tray.
3
Paper upper limit sensor
DLUD
Senses the upper limit of paper.
4
PC interface PWB
Relays the software writing signals.
5
Lifter PWB
Relays the paper size detection, the paper remain detection and each loads to the 
paper tray units.
6
Paper transport sensor 1
DPPD1
Senses the paper transport.
7
PFD PWB
Senses the paper transport 2, 3 and the door.
8
Remaining paper quantity sensor
DCSPS
Senses the remaining paper quantity.
9
Paper transport sensor 2
DPPD2
Senses the paper transport.
10
Door open/close sensor
DDOPD
Senses the door open/close.
11
Paper transport sensor 3
DPPD3
Senses the paper transport.
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8
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1
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