Using The Multifeeder - Canon LBP-2000 Service Manual

D . Using the Multifeeder
1 . O u t l i n e
The presence/absence of paper in the multifeeder tray is detected by the multifeeder paper sensor
(PI102).
When the /PRNT signal arrives from the video controller, the CPU rotates the main motor
(M101) and the scanner motor (M102), and then turns on the multifeeder solenoid (SL101) as soon
as the Printer is ready for printing.
As a result, the cam starts to rotate and the holding plate (on which paper is laid) starts to move
up to put the paper in contact with the multifeeder pickup roller. At the same time, the manual
feed pickup roller makes a single rotation, thus feeding a single sheet of paper from the multifeeder.
The paper then moves past the registration paper sensor (PI101) and reaches the registration
roller. At this time, the registration roller is not rotating, and the paper stops to arch along its
leading edge, thus removing any skew. The CPU turns on the registration clutch (CL102) as soon
as the paper arches so that the paper moves farther for the transfer, separation, and fixing blocks
for face-down delivery.
• Paper Path for Multifeeder Tray Pickup
Figure 2-5-5
CHAPTER 2
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