Sheet feeding apparatus and image forming apparatus
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United States of America Patent
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Dec 8, 2015
Grant Date -
Feb 12, 2015
app pub date -
Mar 29, 2013
filing date -
Apr 5, 2012
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A variable speed unit is driven by a drive unit to make a tooth-missing large gear of a sheet feed tooth-missing stage gear mesh with a small gear of an input stage gear rotating at a constant speed, to then rotate a rotating shaft of the feeding roller and a cam at a first speed to lift an intermediate plate. If a sheet stacked on the intermediate plate is pressed against the feeding roller, the variable speed unit makes a large gear of the input stage gear and a tooth-missing small gear of the sheet feed tooth-missing stage gear mesh with each other, so that the rotating shaft of the feeding roller is rotated at a second speed faster than the first speed to rotate the feeding roller at a fast speed.
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Cited Art Landscape
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