Checking The Photointerrupters - Canon ImageRunner iR8500 Series Service Manual

Chapter 14
When the light-blocking plate is at PS51, 1(5V)
When the light-blocking plate is not at PS51, 0(0V)
<Sensor>
Deck (right) paper level high sensor(PS52)
<Connector>
J513-B12
<I/O address>
P004-5
<Checks/ I/O/ Voltage>
In standby, move the detecting lever by hand.
When the light-blocking plate is at PS52, - (5V)
When the light-blocking plate is not at PS52, - (0V)
<Sensor>
Deck (left) paper level middle sensor(PS54)
<Connector>
J514-B9
<I/O address>
P004-6
<Checks/ I/O/ Voltage>
In standby, move the detecting lever by hand.
When the light-blocking plate is at PS54, 1(5V)
When the light-blocking plate is not at PS54, 0(0V)
<Sensor>
Deck (left) paper level high sensor(PS55)
<Connector>
J514-B12
<I/O address>
P004-7
<Checks/ I/O/ Voltage>
In standby, move the detecting lever by hand.
When the light-blocking plate is at PS55, - (5V)
When the light-blocking plate is not at PS55, - (0V)
<Sensor>
Manual feed tray cover open/ closed sensor(PS56)
<Connector>
J502-A2
<I/O address>
P005-10
<Checks/ I/O/ Voltage>
In standby, move the detecting lever by hand.
When the light-blocking plate is at PS56, 1(5V)
When the light-blocking plate is not at PS56, 0(0V)
<Sensor>
Right inside cover open/ closed sensor(PS58)
<Connector>
J502-B2
<I/O address>
P005-8
<Checks/ I/O/ Voltage>
In standby, move the detecting lever by hand.
When the light-blocking plate is at PS58, 1(5V)
When the light-blocking plate is not at PS58, 0(0V)
<Sensor>
Toner cartridge cover open/ closed sensor(PS59)
<Connector>
J512-B2
<I/O address>
P005-12
<Checks/ I/O/ Voltage>
In standby, move the detecting lever by hand.
When the light-blocking plate is at PS59, 1(5V)
When the light-blocking plate is not at PS59, 0(0V)

14.7.22 Checking the Photointerrupters

/ iR8070
The machine's photointerrupters may be checked by a conventional
meter or its service mode:
a. Using a Meter
1) Set the meter range to 30 VDC.
2) Connect the - probe of the meter to GND of the DC controller PCB.
3) Connect the + probe of the meter to the terminals (DC controller
PCB) indicated in the following table.
4) Make checks as instructed.
b. Using Service Mode
1) Start service mode (COPIER>I/O), and check the appropriate
14-50
address.
Turning on/off a sensor can start the machine's motor or the like. Take
full care.
<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>
0008-8573
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)