Sheet feeder that ensures execution of sheet feeding with more certainty by feeding retry process and image processing apparatus including the same
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United States of America Patent
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May 8, 2018
Issued Date -
N/A
app pub date -
Mar 9, 2017
filing date -
Apr 15, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A sheet feeder includes a sheet platen, a pickup roller, a feeding roller, a regulating portion, a driving mechanism, a feeding control unit, a sheet sensor, and a determination processing unit. The feeding control unit executes a feeding operation by rotationally driving the pickup roller and the feeding roller in a state where the regulating portion is located at a retreating position. The sheet sensor is located at a downstream side in the feeding direction of the feeding roller. The determination processing unit determines whether the sheet feeding has succeeded or not based on a signal from the sheet sensor. After a start of the feeding operation, when the determination processing unit determines that the sheet feeding has failed, the feeding control unit once moves the regulating portion located at the retreating position to the abutting position and then executes the feeding operation again.
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