Patent ID: 8752823
Filing Date: 2014-06-17
Classification: B65H

Abstract:
1. A sheet feeding apparatus, comprising: a sheet supporting portion that supports a sheet and is movable up or down; a feeding roller that includes an arc-shaped friction portion to feed the sheet supported by the sheet supporting portion and a notch portion at which a part in a circumferential direction is cut out; a rotation driving unit that rotationally drives the feeding roller; a friction separation member that presses the sheet fed by the friction portion on a surface other than a surface at the friction portion, and separates a double-fed sheet; and an elevating unit that moves upward the sheet supporting portion; and a controlling device that controls the rotation driving unit and the elevating unit to position the sheet supporting portion below the feeding roller while the feeding roller is rotated, such that the sheet supporting on the sheet supporting portion is not in contact with the friction portion until the friction portion reaches the friction separation member and, when the friction portion reaches the friction separation member, to stop a rotation of the feeding roller and to move upward the sheet supporting portion to a push position at which the sheet supported on the sheet supporting portion is pressed against the friction portion, and when the sheet supporting portion is moved up to the push position, to start to rotate the feeding roller again to feed the sheet.