COPYRIGHT © 2000 CANON INC.
2000 2000 2000 2000
CANON iR5000/iR6000 REV.0 JULY 2000
CHAPTER 3 STANDARDS AND ADJUSTMENTS
3-43 T
10. Checking the Photointerrupters
The machine’s photointerrupters may be checked by means of a meter or service mode.
10.1 Using a Meter
1)
Set the meter range to 300 VDC.
2)
Connect the - probe of the meter to the GND terminal of the PCB to check.
3)
Connect the + probe of the meter to the terminals indicated.
4)
Make checks as instructed.
10.2 Using Service Mode
1)
Enter service mode, and select I/O.
2)
Bring up the I/O address to check, and make checks as indicated.
Turning on and off the sensor can turn on the machine’s motors. Take full
care.
10.3 Check List
Guide to Connector No.
D: DC controller PCB
R: reader controller PCB
Reader Unit (service mode: COPIER>I/O>R-CON)
Sensor
Connector No.
Checks
I/O
Voltage
I/O address
display display
PS39
R>J5012-2
Move the No. 1 mirror base
Light-blocking Present
1
5V
Scanner HP sensor
IO-P6-4
by hand.
plate
Absent
0
0V
PS40
R>J5012-5
Move the sensor lever by hand.
Copyboard Closed
1
5V
Copyboard cover sensor
IO-P6-7
(ADF)
Open
0
0V
PS43
R>J5006-2
Place an original on the copyboard. Paper
Present
0
0V
Original sensor
IO-P4-6
Absent
1
5V
T03-1003-01
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