Canon MultiPASS C530, Service Manual

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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.
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.
NOTE
Figure 2-6 Paper Separation Mechanism
<Thick paper pick up.>
<Plain paper pick up.>
Pick-up Roller
Paper Separater
Paper