Canon ImageRunner iR8500 Series Service Manual page 701

Turning on/off a sensor can start the machine's motor or the like. Take
full care.
<Sensor>
Scanner HP sensor(PS1)
<Connector>
J1110-A1
<I/O address>
-
<Checks/ I/O/ Voltage>
In standby, move the scanner by hand.
When the light-blocking plate is at PS1, 1(5V)
When the light-blocking plate is not at PS1, 0(0V)
<Sensor>
Image leading edge sensor(PS3)
<Connector>
J1110-A4
<I/O address>
-
<Checks/ I/O/ Voltage>
In standby, move the scanner by hand.
When the light-blocking plate is at PS3, 1(5V)
When the light-blocking plate is not at PS3, 0(0V)
<Sensor>
Copyboard cover open/closed sensor(PS4)
<Connector>
J1110-B9
<I/O address>
P001-4
<Checks/ I/O/ Voltage>
In standby, move the copyboard cover by hand.
When the cover is closed, 1(5V)
When the cover is opened, 0(0V)
<Sensor>
Registration paper sensor(PS5)
<Connector>
J509-A2
<I/O address>
P001-11
<Checks/ I/O/ Voltage>
In standby, put paper over PS5.
When paper is not at PS5, 1(5V)
When paper is at PS5, 0(0V)
<Sensor>
Fixing claw jam sensor(PS6)
<Connector>
J508-B15
<I/O address>
P001-15
<Checks/ I/O/ Voltage>
In standby, put paper over PS6.
When paper is not at PS6, 0(0V)
When paper is at PS6, 1(5V)
<Sensor>
Fixing web length sensor(PS7)
<Connector>
J508-B2
<I/O address>
P003-3
<Checks/ I/O/ Voltage>
In standby, put paper over PS7.
When the web is present, 0(0V)
When the web is absent, 1(5V)
<Sensor>
Fixing web length warning sensor(PS8)
<Connector>
J508-B5
<I/O address>
P003-4
<Checks/ I/O/ Voltage>
In standby, put paper over the detecting lever of PS8.
When the No Web warning is issued, 1(5V)
When the No Web warning is not issued, 0(0V)
<Sensor>
Inside delivery sensor(PS9)
<Connector>
J508-A2
<I/O address>
P001-12
<Checks/ I/O/ Voltage>
In standby, put paper over the detecting lever of PS9.
When paper is put, 1(5V)
When paper is pulled, 0(0V)
<Sensor>
Outside delivery sensor(PS10)
<Connector>
J508-A8
<I/O address>
P001-13
<Checks/ I/O/ Voltage>
In standby, put paper over the detecting lever of PS10.
When paper is put, 1(5V)
When paper is pulled, 0(0V)
<Sensor>
Fixing/feeding unit outlet sensor(PS11)
<Connector>
J508-A11
<I/O address>
P001-14
<Checks/ I/O/ Voltage>
In standby, put paper over the detecting lever of PS11.
When paper is put, 1(5V)
When paper is pulled, 0(0V)
<Sensor>
Duplexing reversal sensor(PS12)
<Connector>
J519-B6
<I/O address>
P002-1
<Checks/ I/O/ Voltage>
In standby, put paper over the detecting lever of PS12.
When paper is put, 0(0V)
When paper is pulled, 1(5V)
<Sensor>
U-turn sensor(PS13)
<Connector>
J519-B7
<I/O address>
P002-2
<Checks/ I/O/ Voltage>
In standby, put paper over the detecting lever of PS13.
When paper is put, 1(5V)
When paper is pulled, 0(0V)
<Sensor>
Pre-confluence sensor(PS14)
<Connector>
J519-B8
<I/O address>
P001-3
<Checks/ I/O/ Voltage>
In standby, put paper over the detecting lever of PS14.
When paper is put, 1(5V)
When paper is not put, 0(0V)
<Sensor>
Post-confluence sensor(PS15)
<Connector>
J519-B9
<I/O address>
P002-4
<Checks/ I/O/ Voltage>
In standby, put paper over the detecting lever of PS15.
When paper is put, 1(5V)
When paper is not put, 0(0V)
<Sensor>
Reversal sensor(PS16)
<Connector>
J508-A5
<I/O address>
P002-0
<Checks/ I/O/ Voltage>
In standby, put paper over the detecting lever of PS16.
When paper is put, 1(5V)
When paper is not put, 0(0V)
Chapter 14
14-47