CHAPTER 2 FUNCTIONS & OPERATION
1) Feed path
The feed path of this machine is a U-turn
path that is slightly tilted from vertical.
(Approx. 65 degrees)
This makes it possible to reduce the
actual amount of floor space used.
The straight path can be used by
switching the position of the flapper in the
eject unit. When feeding cards, orient the
card sideways and use the straight path.
Figure 2-302
2) Drive
The feed motor drives the feed roller and
the retard roller, and the main motor
drives the registration roller, eject roller,
and U-turn eject roller.
The scanning condition determines each
drive speed.
3) Feed
The following shows a cross-sectional
diagram of the feed unit before starting
the feed. The document pressure plate is
in the lowered position.
When a document is placed in the feed
slot, the edge of the document lines up at
the end plate. When a scan is started,
the document platen moves and the
document begins to feed by being
pressed against the feed roller.
Misfeeds and double feeds have been
reduced by installing an end plate,
increasing the diameter of the feed roller,
and making the retard roller movable up
and down.
The front side of the placed document is
fed by the document pressing against the
feed roller.
In
Figure 2-303
Feed roller
Retard roller
Document
Document
pressure
plate
Out
Minimal footprint
Document
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©
CANON ELECTRONICS INC. 2011 CANON DR-C125 FIRST EDITION
2-9
