The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 1999
Filed:
Sep. 30, 1996
Tsuyoshi Yamauchi, Yokohama, JP;
Akimitsu Hoshi, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A sheet feeding apparatus for separating stacked sheets one by one and feeding the sheets includes a rotative feeder rotating in a feeding direction for feeding the sheets; a retard roller disposed so as to be capable of contacting the rotative feeder rotating in reverse direction for separating the sheets one by one; a driver for driving the rotative feeder and the retard roller; a clutch for transmitting drive power from the driver to the rotative feeder when in a powered-on state, and for rendering the rotative feeder in a rotation free state without transmitting the drive power of the driver to the rotative feeder when in a powered-off state. The apparatus further includes a controller for, before the start of feeding of the sheets, rendering the rotative feeder in the rotation free state while the controller renders the clutch in the powered-off state and controlling the driver to rotate the retard roller in the reverse direction to the feeding direction of the sheet.