Canon LBP1760P, Service Manual

Page: 198 / 394

3. Adjusting the installation position of envelope multiple feed sensor
The installation position of envelope multiple feed sensor is normally adjusted at the factory.
However, if the screw which hold the sensor is removed or accidentally loosened for replacement
of the sensor or its peripheral parts, the installation position of envelope multiple feed sensor
must be adjusted correctly.
The adjustment procedures are shown below.
1) Prepare the printer driver tester (RY9-0124) and the thickness gauge (RY9-0122).
2) Remove the top cover of the envelop feeder.
3) Connect the two connectors of the printer driver tester with the printer and the envelop mul-
tiple feed sensor connector as shown in Figure 4-7-3.
4) Insert the 0.7mm thickness gauge (RY9-0122) between the upper and lower feed rollers of
the envelope feeder from the side where the envelope is to be set.
5) Turn ON the printer.
6) The Sensor Test LED of the printer driver tester lights up.
7) Tighten the screw that holds the sensor until the LED goes off.
Figure 4-7-3
4 - 36
CHAPTER 4
Thickness gauge (RY9-0122)
Screw
Envelope multiple feed sensor
Connecting to the multiple feed sensor connecter.
Printer driver tester (RY9-0124)
Sensor Test LED
Connecting to the printer's connector for the envelope feeder.