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
Download Free Service Manual at http://printer1.blogspot.com
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