Canon 1000 Service Manual page 179

b. Cassette Lifter Operation
Figures 3-605 and -606 show outlines of cassette lifter operation.
When the cassette is set in the copier, the pick-up roller lowers and the lifter detecting lever leaves the
lifter sensor.
The condition turns on the cassette lifer motor, thereby raising the lifter. The cassette lifter motor stops
where the cassette lifter sensor can detect the top surface of the stack of paper on the lifter.
When paper runs out and the paper detecting lever leaves the paper sensor, the message 'ADD
PAPER' will be indicated on the control panel.
The notations of the lifter motor, cassette lifter sensor, and cassette paper sensor used for the cassettes
1 and 2 are as shown in Table 3-606.
Cassette paper sensor
COPYRIGHT © 2001 CANON INC.
Cassette
Name
Cassette lifter
motor
Cassette lifter
sensor
Cassette paper
sensor
Lifter detecting lever
Pick-up roller
Paper detecting lever
Lifter
Lifter push-up
plate
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
Cassette 1
Cassette 2
M16
PS24
PS23
Table 3-606
Lifter sensor
Cassette
M Cassette lifter motor
Figure 3-605
3. OPERATION AND TIMING
M17
PS27
PS28
Feeding roller
Separation roller
3-135