Sharp AR-F15 Service Manual page 99

3. Inputs to the Saddle Stitch Controller PCB
Paper sensor PCB
PI18S
No.1 paper sensor
PI19S
No.2 paper sensor
PI20S
No.3 paper sensor
Stitch unit (front)
Stitch home
position
MS7S
sensor (front)
Staple
sensor (front)
MS6S
Stitch unit (rear)
Stitch home
position
MS5S
sensor (rear)
Staple
sensor (rear)
MS4S
Inlet door switch
N.O.
MS1S
Front door switch
N.O.
MS2S
Delivery door switch
N.O.
MS3S
CHAPTER 3 SADDLE STITCH UNIT BASIC OPERATION
J123-5 -1
-4 -2
-3 -3
-2 -4
-1
-5
J315-5 -3
-7 -1
-6
-2
J316-5 -3
-7 -1
-6
-2
J109-3
-2
J110-3
-2
J111-2 -1
-2
-3
Figure 3-105
Saddle stitch controller PCB
-5 J10-1
+5V
-4 -2
1STPA
-3 -3
2NDPA
-2 -4
3RDPA
-5
-1
-5 J8-3
STCHHP1*
-7 -1
HKEMP1
-6 -2
-5 J8-10
STCHHP2*
-7 -8
HKEMP2
-6 -9
+24V
J4-1
-2
INLTCVRMS
J4-3
-4
FDROPN
J4-5
-1
+24U
-2
-6
DELVMS
When paper is present at
the No.1 paper sensor, "1".
When paper is present at
the No.2 paper sensor, "1".
When paper is present at
the No.3 paper sensor, "1".
When the stitch unit is at
the home position for
stitching, "0".
When no staple is present,
"0".
When the stitcher unit is
at the home position for
stitching, "0".
When no staple is present,
"0".
When the inlet door is
closed, "1".
When the front door is
closed, "1".
When the delivery door
is closed, "1".
3-5