Patent ID: 8002275
Filing Date: 2011-08-23
Classification: B65H

Abstract:
1. A sheet conveying apparatus comprising: a first skew feeding correction unit and a second skew feeding correction unit, which are arranged in a width direction that is perpendicular to a sheet conveying direction, that correct skew feeding of a sheet by turning the sheet while the sheet is conveyed; a detection portion that outputs a signal depending on an amount of skew feeding of the sheet; and a control portion (i) that increases a speed difference between a sheet conveying speed of the first skew feeding correction unit and a sheet conveying speed of the second skew feeding correction unit depending on an amount of skew feeding of the sheet when the amount of skew feeding of the sheet is smaller than a predetermined amount, and (ii) that reduces the sheet conveying speed of the first skew feeding correction unit and the sheet conveying speed of the second skew feeding correction unit before the skew feeding correction process, in order to restrict a speed difference between the conveying speed of the first skew feeding correction unit and the conveying speed of the second skew feeding correction unit to under a predetermined value, when the amount of skew feeding of the sheet exceeds the predetermined amount.