Ii. Pick-Up Assembly; Pick-Up From The Cassette; Pick-Up Assembly - Canon CP660 Service Manual

II. PICK-UP ASSEMBLY

A.

Pick-Up from the Cassette

1. Pick-Up Operation
The printer unit moves up the paper inside the cassette using a lifter to pick-up posi-
tion; then, it brings down a rotating pick-up roller to come into contact with the paper for
pick-up.
The series of pick-up operations is executed in response to the PRNT* signal, and the
main motor is used to bring down the pick-up roller to the stack of paper, while the pick-
up motor is used to rotate the pick-up roller.
When the printer board1 sends the PRNT* signal to the printer unit, the main motor
(M4) and the pick-up motor (M5) start to rotate. When the cassette pick-up solenoid (SL3)
turns on, the drive of the main motor is sent to the cassette pick-up cam through gears,
and the rotation of the cam moves the lift arm.
At the same time, the drive of the pick-up motor is sent through the feeding roller
gears to reach the cassette pick-up roller. The rotating cassette pick-up roller moves
down to the stack of paper, and a single sheet of paper is picked up, at the end of which
the pick-up roller moves to its initial position and stops.
When the pick-up motor rotates clockwise, the pick-up roller of the cassette 1, feed-
ing roller 1, and separation roller are driven to pick up paper from the cassette 1. When
the motor rotates counterclockwise, on the other hand, the pick-up roller of the cassette
2, feeding roller 1, and separation roller are driven to pick up paper from the cassette 2.
*1: Reader controller PCB (when making prints with the reader unit installed).
Pick-up roller
Feeding roller 1
Separation roller
Pick-up motor
COPYRIGHT © 1999 CANON INC.
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Cassette holding plate
Print paper
Pick-up roller shaft
M5
Feeding roller gear
Figure 5-201
CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5 PICK-UP/FEEDING SYSTEM
Cassette pick-up cam
Lift arm
Lift-up releasing arm
Lift-up cam
Pick-up roller shaft fixing arm
M4
Main motor
Gear
Cassette pick-up
solenoid (SL3)
5-3