Patent ID: 8292293
Filing Date: 2012-10-23
Classification: B65H

Abstract:
1. A sheet conveying apparatus comprising: a front end detecting portion which detects a front end of a sheet; a side edge position detecting portion which detects a position of a side edge parallel to a sheet conveying direction of the sheet; a skew feeding correcting portion which corrects skew feeding of the sheet to be conveyed; and a controlling portion which calculates a skew feeding amount of a sheet front end based on detection of the front end detecting portion, calculate a skew feeding amount of a sheet side edge based on detection of the side edge position detecting portion, wherein the controlling portion determines whether the sheet is a rectangular sheet or a non-rectangular sheet, based on the calculated sheet side edge skew feeding amount and sheet front end skew feeding amount before skew feeding of the sheet is corrected, and controls the skew feeding correcting portion to correct skew feeding of the sheet based on one of the sheet side edge skew feeding amount and the sheet front end skew feeding amount when determining that the sheet is the rectangular sheet and controls the skew feeding correcting portion to correct skew feeding of the sheet based on the sheet side edge skew feeding amount when determining that the sheet is the non-rectangular sheet.