Patent ID: 8403324
Filing Date: 2013-03-26
Classification: B65H

Abstract:
1. A sheet skew feeding correcting apparatus comprising: a sheet conveying unit which conveys a sheet; a pair of sheet conveying rotating members which is disposed downstream of the sheet conveying unit in a sheet conveying direction; a shutter member which rotates between a first position where the shutter member abuts against a leading end of the sheet conveyed by the conveying unit and a second position where the shutter member permits the sheet to pass therethrough; an abutting portion, disposed on the shutter member, which abuts the leading end of the conveyed sheet upstream of a nip portion of the pair of sheet conveying rotating members when the shutter member is at the first position, wherein a loop is formed on the conveyed sheet whose leading end abuts the shutter member; a loop abutting portion, disposed on the shutter member, against which a loop portion of the conveyed sheet abuts; and a regulating portion that regulates a rotation of the shutter member in a first direction in which the shutter member rotates by an abutting force from the leading end of the sheet conveyed by the sheet conveying unit, wherein the shutter member is rotated in a second direction opposed to the first direction by the pressing force of the loop portion of the conveyed sheet to the loop abutting portion, and thereby the shutter member rotate from the first position to the second position.