Fuji Xerox DocuCentre SC2020 Service Manual page 770

7-32
A B
7.2 TRAY 2 PAPER SIZE SENSING (1TM)
STM PWB
PL10.6
J548
1
+5VDC
15
BLU
+5VDC
(1.5 E2)
2
DC COM
13
BLU
3
DC COM
(1.5 E2)
NOTE:
1
Paper size is sensed by voltage corresponding to combined resistance of Paper Size Sensor and SW5 On/Off.
The table below shows the relation between paper size and combination of Switch ON/OFF pattern, voltage and AD value.
(Any combination other than the ones below results in an undetermined size.)
Paper Size SW1
4
NO TRAY OFF
A5S/5.5"×8.5"S OFF
B5S OFF
8.5"×13"S OFF
8.5"×14"S OFF
A4S OFF
5 8.5"/9"×11"S OFF
A4L ON
A3S ON
B5L/7.25"×10.5"L ON
8KS(GCO),(TFX) ON
B4S ON
8.5"×11"L ON
6 16KL(GCO),(TFX) ON
11"×17"S ON
C D
TRAY 2 PAPER SIZE SENSOR
PL10.1
J101
1
SW1
SW2
SW3
SW4
3
SW2 SW3 SW4
OFF OFF OFF
OFF ON OFF
OFF ON ON
ON OFF ON
ON OFF ON
ON ON OFF
ON ON OFF
OFF ON OFF
OFF ON ON
ON OFF OFF
ON OFF ON
ON OFF ON
ON ON OFF
ON ON OFF
ON ON ON
E F
Analog Input
TRAY 2 PAPER SIZE
SENSOR
J101
SENSED SIGNAL
2
Digital Input
TRAY 2 PAPER SIZE
SENSOR
SIZE SELECT SWITCH
SW5 ON (L)+5VDC
4
AD Value
Voltage (V) Analog Input[072-200]
SW5
(J548-14)
Min Typ Max
OFF 4.66±0.05 e7 ef f7
OFF 4.01±0.05 c7 cf db
ON 3.69±0.05 b8 bf cb
OFF
3.07±0.05 99 a0 a7
ON
OFF
2.75±0.05 89 91 98
ON
OFF 1.52±0.05 4d 54 5d
OFF 1.21±0.05 3d 45 4c
ON 0.91±0.05 2e 36 3c
OFF
0.60±0.05 1f 27 2d
ON
OFF
0.30±0.05 10 18 1e
ON
ON 0.00±0.05 0 9 f
Chain7 Paper Supplying
G H
STM PWB
PL10.6
072-200
+5VDC
J548
024-947
14
BLU
024-960
024-971
072-104
+5VDC
12
BLU
ELECTRICAL COMPONENTS
7.3 BSD
J
FAIL CODE
024-947
Tray 2 Detached
024-960
Tray 2 No Suitable Paper
024-971
Tray 2 Paper Size Switch
Error
TRAY 2 PAPER SIZE
SENSOR
SW3
SW2 SW1
SW4
SW5
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