Canon MultiPASS C530 Service Manual page 88

MultiPASS C530/C560 Chapter 2: Technical Reference
Paper Separation Mechanism (Automatic feed)
This model has no paper selection lever on the automatic sheet feeder.
If the paper meets specifications, it can be fed without selecting operation the paper
type.
NOTE
The paper is loaded in the auto sheet feeder such that a corner of it is caught by the
paper separator. When printing starts, the pick-up roller starts to rotate through the
drive of the paper feed motor. Plain paper is fed with its corner held by the paper
separator, and then pushed into the paper feed section. When printing on thick paper
like envelopes, as the paper is stiffer than the return force of the paper separator's
spring, the paper separator is pressed down to feed the paper.
Initial position of the pick-up roller is detected when the flag is sensed by the pick-up
roller sensor on the SPCNT board.
When the paper is sensed by the paper edge sensor for over a second, it is fed
automatically until it reaches the starting position for printing.
If the paper is not sensed even when the paper pick-up operation is executed, it is
executed again. If the paper is still not sensed, it is assessed as a paper feed error.
Paper
Pick-up Roller
Paper Separater
<Thick paper pick up.>
<Plain paper pick up.>
Figure 2-6 Paper Separation Mechanism
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