Read Sharp AR-C170 (serv.man23) Service Manual online
AR-C170M EXTERNAL VIEW AND INTERNAL STRUCTURE 6 - 8
G. Sensors, switches and heaters
22
Calibration plate open/
close solenoid
close solenoid
Switches the image density sensor.
CALS
Electromagnetic solenoid
23
Transfer belt motor
Drives the transfer belt.
BTM
Stepping motor
24
Pickup solenoid
Drives the document pickup roller.
PSOL
Electromagnetic solenoid
25
Pressure release solenoid
Paper exit roller pressure, release, control
RSOL
Electromagnetic solenoid
26
PS clutch
Document resist clutch
CLH
Electromagnetic clutch
27
RSPF motor
RSPF drive motor
MOT
Stepping motor
28
Gate solenoid
Gate switch solenoid in duplex
GSOL
Electromagnetic solenoid
No.
Parts
Code, signal
name
Type
Name
Function
2
O/C open/close sensor
Detects open/close of the document cover. (A timing signal of
document size detection is produced.)
document size detection is produced.)
OCSW
Photo sensor (Photo
transmission)
transmission)
3
Offset home position sensor
Detects the offset home position.
HPOS
Photo sensor (Photo
transmission)
transmission)
4
Paper exit tray full detection
Detects full of the face down paper exit tray.
TFD2
Photo sensor (Photo
transmission)
transmission)
5
Mirror home position sensor
Detects the scanner home position.
MHPS
Photo sensor (Photo
transmission)
transmission)
7
Dehumidifier heater switch
Turns ON/OFF the dehumidifier heater installed in the scanner
(reading) section and the paper feed section.
(reading) section and the paper feed section.
DHSW
(Japan only)
(Japan only)
—
8
Toner empty sensor (Y)
Detects toner empty (Y).
TES_Y
Photo sensor (Photo
transmission)
transmission)
9
Toner empty sensor (M)
Detects toner empty (M).
TES_M
Photo sensor (Photo
transmission)
transmission)
10
Toner empty sensor (C)
Detects toner empty (C).
TES_C
Photo sensor (Photo
transmission)
transmission)
11
Toner empty sensor (K)
Detects toner empty (K).
TES_K
Photo sensor (Photo
transmission)
transmission)
12
No. 1 paper transport sensor
Detects paper in front of the resist roller.
PPD1
Photo sensor (Photo
transmission)
transmission)
No.
Parts
Code,
signal name
Type
Name
Function
42
Front / right side / top view
43
41
33
34
32
31
30
40
39
38
37
36
35
5
3
4
2
45
47
48
49
50
53
54
51
52
46
7
8
9
10
11
11
12
13
Lift-up unit
14
15
16
17
19
18
21
22
23
25
26
24
27
28
29
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