Sheet pick-up module of automatic document feeder
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United States of America Patent
Stats
-
Oct 2, 2012
Grant Date -
Dec 29, 2011
app pub date -
Aug 18, 2010
filing date -
Jun 25, 2010
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sheet pick-up module includes a driving shaft, a driving shaft sleeve, a pick-up driving roller, a pick-up roller sleeve and a sliding sleeve. When the driving shaft is rotated to drive rotation of the driving shaft sleeve, the driving shaft sleeve pushes the sliding sleeve toward the pick-up roller sleeve, and the sliding sleeve is rotated to push the pick-up roller sleeve, so that the pick-up driving roller and the pick-up roller sleeve are synchronously rotated to transport the document at a pick-up speed. When the feed roller is contacted with the document to transport the document at a feed speed faster than the pick-up speed, the pick-up driving roller is driven to rotate by the document, and the pick-up roller sleeve is rotate to push the sliding sleeve, so that the sliding sleeve is moved in a direction away from the pick-up roller sleeve.
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