Canon Voice Operation Kit User Manual page 109

This machine is equipped with an open/
close sensor on the feeder (see circled area
in the above illustration). When placing
originals on the platen glass, lift the feeder
2
approximately 11 7/8" (300 mm) so that
the sensor detaches from the feeder. If the
sensor does not detach from the feeder, the
size of the originals may not be detected
correctly.
2
Place your originals face down.
Placing Originals 2-29