d. Detecting the Absence of Paper inside the Cassette
When the cassette runs out of copy paper, the paper detecting lever falls through the detecting slit in
the cassette. The paper detecting lever operates in conjunction with the light-blocking plate so that the
light-blocking plate blocks the respective photointerrupter (Q1604 for the upper cassette; Q1605 for the
lower cassette), thereby indicating the absence of paper inside the cassette. Figure 3-614 shows the state
in which the cassette has run out of copy paper.
Figure 3-614 Arrangement of the Paper Detecting Lever
Q1604 : Upper cassette
Q1605 : Lower cassette
Paper detecting lever
COPYRIGHT © 1996 CANON INC. CANON GP215/200 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
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3. OPERATIONS AND TIMING
