Sheet feeding apparatus and image forming apparatus

a feeding apparatus and a technology of forming apparatus, applied in the direction of transportation and packaging, thin material processing, article separation, etc., can solve the problems of reducing separation performance and more strictly managing the position accuracy of the return roller, so as to prevent the overlapping of sheets
US20150210493A1Inactive Publication Date: 2015-07-30CANON KK
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
CANON KK
Publication Date
2015-07-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

A sheet feeding apparatus includes: a stacking portion on which a sheet is stacked; a sheet feeding portion configured to feed the sheet stacked on the stacking portion; a rotating member provided on a downstream side of the stacking portion in a feeding direction of the sheet and rotates in a direction opposite to the feeding direction; a slope portion of which at least a part is provided on the downstream side of the stacking portion in the feeding direction and on an upstream side of the rotating member, and which is inclining so that the downstream side in the feeding direction become an upper side; and a changing unit configured to change a protruding amount of the rotating member toward a sheet feeding path of the sheet.
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Description

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a sheet feeding apparatus which separates stacked sheets one by one and feeds a sheet, and an image forming apparatus which includes the sheet feeding apparatus.

[0003] 2. Description of the Related Art

[0004] In an image forming apparatus, there is provided a sheet feeding apparatus which separates sheets one by one and feeds a sheet to an image forming portion. In such a sheet feeding apparatus, a slope surface portion may be used as a method of separating the sheets one by one. In the apparatus, as illustrated in FIG. 9A, a sheet S stacked on a stacking portion 1 is conveyed by a feeding roller 2, the sheet is caused to butt against the slope surface portion of a separation member 3 on the downstream side of the feeding roller 2, and only one uppermost sheet is separated by a resistance force at that time and fed (U.S. Pat. No. 8,322,707).

[0005] Note that, in order to reliably separate ove...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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