Canon Paper Deck-V1, Service Manual

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Chapter 2
2-4
2.2 Basic Operation
2.2.1 Outline
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The side paper deck (hereafter, "deck") is capable of accommodating as many as 3500 sheets of paper at a time (A4/
LTR/B5; 80 g/m2), ready to pick up and feed paper in response to control signals from its host machine's DC
controller.
The lifter of the deck is driven by the deck lifter motor (M102), and the pickup operation is executed using the drive
from the deck main motor (M101).
2.2.2 Pickup Operation
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The paper placed in the deck is held up by the lifter at a specific point of paper pickup.
When the Start key is pressed and the deck pickup clutch (CL102) goes on, the pickup roller starts to rotate by the
drive of the deck main motor (M101), thus picking up paper. At this time, the pickup/feed roller and the separation
roller make sure that no more that a single sheet of paper is moved ahead. Thereafter, when the deck pickup sensor
(PS106) detects the paper, the deck pickup roller release solenoid (SL101) goes on so that the pickup roller leaves
the surface of the stack of paper.
The paper is then moved to the host machine's registration roller, where it is arched to remove any skew.
The registration roller serves to control the paper so that its leading edge will match the image on the photosensitive
drum.