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AR-BC320 EXTERNAL VIEW AND INTERNAL STRUCTURE 6 - 8
G. Sensors, switches and heaters
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.)
OCSW
Photo sensor (Photo
transmission)
3
Offset home position sensor
Detects the offset home position.
HPOS
Photo sensor (Photo
transmission)
4
Paper exit tray full detection
Detects full of the face down paper exit tray.
TFD2
Photo sensor (Photo
transmission)
5
Mirror home position sensor
Detects the scanner home position.
MHPS
Photo sensor (Photo
transmission)
8
Toner empty sensor (Y)
Detects toner empty (Y).
TES_Y
Photo sensor (Photo
transmission)
9
Toner empty sensor (M)
Detects toner empty (M).
TES_M
Photo sensor (Photo
transmission)
10
Toner empty sensor (C)
Detects toner empty (C).
TES_C
Photo sensor (Photo
transmission)
11
Toner empty sensor (K)
Detects toner empty (K).
TES_K
Photo sensor (Photo
transmission)
12
No. 1 paper transport sensor
Detects paper in front of the resist roller.
PPD1
Photo sensor (Photo
transmission)
13
Paper feed door open detection
Detects open/close of the paper feed door.
DSWR
Micro switch
14
Manual feed paper empty detection
Detects paper empty on the paper tray.
MPED
Photo sensor (Photo
transmission)
15
Manual feed tray pulling out detection 2
Detects the paper tray position.
MTOP2
Contact switch
16
No. 1 cassette paper size detection 1
Detects the paper size set by the paper size set blocks.
C1SS1
Contact switch
17
No. 1 cassette paper size detection 2
Detects the paper size set by the paper size set blocks.
C1SS2
Contact switch
18
No. 1 cassette paper size detection 3
Detects the paper size set by the paper size set blocks.
C1SS3
Contact switch
19
No. 1 cassette paper size detection 4
Detects the paper size set by the paper size set blocks.
C1SS4
Contact switch
20
No. 1 cassette lift-up position detection 1
Detects the lift plate position. (Detects the paper quantity.)
C1PD1
Photo sensor (Photo
transmission)
21
Manual feed paper length detection 2
Detects the paper length.
MPLD2
Photo sensor (Photo
transmission)
22
Manual feed tray pulling out detection 1
Detects the paper tray position.
MTOP1
Contact switch
23
Manual feed paper length detection 1
Detects the paper length.
MPLD1
Photo sensor (Photo
transmission)
24
Humidity sensor
Detects the ambient humidity.
HUD
—
43
42
41
33
34
32
31
40
39
38
37
36
35
5
3
4
2
8
9
10
11
12
13
14
15
16
17
19
20
18
21
22
23
25
26
24
27
28
29
Paper tray
lift-up unit
44
Front / right side / top view
Summary of Contents for AR-BC320
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