Canon GP215 Service Manual page 141

4. Cassette Pick-Up Operation
a. Pick-Up Operation
q The pick-up roller is rotated by the cassette pick-up motor (M4).
w The cassette pick-up motor is rotated clockwise or counterclockwise under the control of the cassette
pick-up PCB. When copy paper is supplied from the upper cassette of the pick-up unit, the cassette
motor is rotated clockwise; when paper is from the lower cassette, on the other hand, the cassette pick-
up motor rotates counterclockwise.
e Pick-Up Roller Shaft Reference
When the cassette is installed to the machine, the pick-up roller is lowered or the lifter is raised in
reference to the position of the pick-up roller shaft.
b. Drive Control
q The pick-up roller is rotated by the drive of the pick-up motor (M4) coming by way of gears. The cas-
sette pick-up motor rotates clockwise or counterclockwise to drive the upper/lower cassette.
w When the cassette pick-up motor rotates clockwise, the rotation of the motor moves up the gear 1 to
drive the pick-up roller of the upper cassette; when the motor rotates counterclockwise, on the either
hand, the gear 1 moves down to drive the pick-up roller of the lower cassette. See Figure 3-609 for
how the pick-up roller is driven.
Cassette pick-up motor
Gear 1
Figure 3-609 Movement of Gear 1 in Relation to the CW/CCW Rotation of the
COPYRIGHT © 1996 CANON INC.
Cassette Pick-Up Motor (M4)
CANON GP215/200 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
3. OPERATIONS AND TIMING
Gear 1 movement during CW rotation
Gear 1 movement during CCW rotation
Gear 1
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