CHAPTER 2 OUTLINE OF OPERATION
COPYRIGHT © 2001 CANON INC.
2000 2000 2000 2000
CANON DADF-H1 REV.0 MAR. 2001
2-26
2.4 Document Pickup/Separation
2.4.1 Basic pickup operation
Pressing the PRINT START key with a document set in the document tray causes the
ADF to pick up the document in the following sequence:
a. Pickup operation
When the pickup motor (M2) reverses, the pickup roller assembly descends to rotate the
pickup roller for feeding the document. The stopper ascends in synchronization with the
pickup roller assembly. The separation plate and the separation pad prevent the document
from feeding in duplicate as the document is fed.
F02-204-01
b. Looping
The pickup motor (M2) reverses, pressing the paper against the registration roller halted
by the idling one-way clutch to form a loop, thereby preventing the document from skew-
ing.
F02-204-02
Pickup roller
assembly
Document
M2
Pickup roller
assembly
Document
Stopper
Separation pad
Separation plate
M2
One-way
clutch
One-way
clutch
Registration roller
Looping 1
Summary of Contents for DADF-H1
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