Sharp AR-SS2 Service Manual page 37

D. Copier/sorter communication
1) Outline
The copier and the sorter are exchanging the status signals by IPC
(communication IC).
This machine is provided with a new IPC and the old IPC communica-
tion functions as well to allow selection depending on the copier
connected.
Selection is made by the DIP switch (SW1) No. 6 on the sorter
controller PWB.
SW1-6
Communication Old IPC
system communication
Bin paper sensor
S1 (Light receiving section)
Bin paper sensor
S2 (Light receiving section)
Guide bar home position sensor
1
2
3
PI3
Joint switch
MS1
NO COM
Bin shift motor clock sensor
3
2
1
PI1
Lead cam home position sensor
3
2
1
PI2
Stapler unit cover switch
MS2
NO COM
Stapler unit home position switch
MS4
NO COM
Stapler unit cover sensor
3
2
1
PI7
S3
S4
ON OFF
New IPC
communication
J203
1 1 4 1
2 2 3 2
J204
2 2 2 3
1 1 1 4
J115
1 1
2 2
3 3
4 4
5 5
6 6
7 7
J301
J202 J104
1 1 4 1
2 2 3 2
4 4 1 4
These signals are written into the RAM on the sorter controller PWB
and outputted according to the control signal from the CPU (Q1).
A serviceman cannot check if the status signal is properly transferred
or not. When, however, an error in signal transfer occurs, the self
diagnostics function of the copier functions to display the error code
on the operation section of the copier. (Code: F1-70)
Sorter controller PWB
+5V
J4
1
2
BIN LED "1" when LED emits light. (Blinking)
3
PA CHE "1" when there is paper in the bin.
4
+5V
6
STYGHP "1" when the guide bar is in the home position.
7
8
+24V
J10
1
2
JOI SW "1" when connected to the copier.
+5V
J5
1
3
SHIFT CLK Pulses corresponding to the shift
2
motor rotating speed
+5V
4
5
6
CUMH "1" when the lead cam is in the home position.
+24V
J6
1
2
SPLOPN "1" when the stapler unit cover is closed.
+24V
3
4
SPUHP "1" when the stapler unit is in the home position.
+5V
J14
3
2
1
SPLOPN "1" when the stapler unit cover is closed.
J3
1
4
SPLED "1" when stapling is enabled.
3 2
4 HARI LED "1" when staple empty
1
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AR-SS2