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US 6,332,608 B1Granted
Sheet feeding apparatus
AssigneeCanon Kabushiki Kaisha
InventorMasashige Tamura
Life of this patent
Estimating the term…
Abstract
The present invention relates to a sheet feeding apparatus in which sheet feeding out means, while a sheet is conveyed by a sheet feed roller and a retard roller, feeds out a succeeding sheet to an abutting portion of the sheet feed roller and the retard roller so that a leading end of the succeeding sheet overlaps a trailing end of a preceding sheet.
Claims17
A sheet feeding apparatus comprising:
- a sheet support for supporting sheets;
- separation means comprising a sheet feed roller rotating in a sheet feeding direction and a retard roller rotating in a direction opposite to the sheet feeding direction, said separation means for separating and conveying sheets stacked on said sheet support one by one;
- and
- sheet feeding out means for feeding out a succeeding sheet to an abutting portion of said sheet feed roller and said retard roller while a preceding sheet is conveyed by said sheet feed roller and said retard roller,
- wherein when a trailing end of the preceding sheet approaches a position spaced from the abutting portion of said sheet feed roller and said retard roller by a predetermined distance, said retard roller is rotated by a rotation of said sheet feed roller in order to convey the preceding sheet and the succeeding sheet with the preceding sheet overlapping the succeeding sheet.
2 more elements
An image forming apparatus comprising:
- a sheet support for supporting sheets;
- separation means comprising a sheet feed roller rotating in a sheet feeding direction and a retard roller rotating in a direction opposite to the sheet feeding direction, said separation means for separating and conveying sheets stacked on said sheet support one by one;
- sheet feeding out means for feeding out a succeeding sheet to an abutting portion of said sheet feed roller and said retard roller while a preceding sheet is conveyed by said sheet feed roller and said retard roller,
- wherein when a trailing end of the preceding sheet approaches a position spaced from the abutting portion of said sheet feed roller and said retard roller by a predetermined distance, said retard roller is rotated by a rotation of said sheet feed roller in order to convey the preceding sheet and the succeeding sheet with the preceding sheet overlapping the succeeding sheet;
- and
- image forming means for forming an image on the sheet that is separated and fed by said separation means.
3 more elements
Dependencies are inferred from the claim text.