Patent ID: 7300054
Filing Date: 2007-11-27
Classification: B65H

Abstract:
1. An image forming apparatus having an image forming portion for forming an image on a sheet and a sheet conveying apparatus for conveying the sheet to the image forming portion, said image forming apparatus comprising: a skew detecting sensor configured to detect the skew of the sheet being conveyed with respect to a sheet conveying direction; a skew correcting mechanism rotatable in a direction to correct the skew of the sheet in a state nipping the sheet in its skew state; a position correcting mechanism configured to move said skew correcting mechanism in a direction intersecting with the sheet conveying direction; and a controller configured to control so as to rotate said skew correcting mechanism on the basis of a detection signal from said skew detecting sensor and to move said skew correcting mechanism in the direction intersecting with the sheet conveying direction by said position correcting mechanism while correcting the skew of the sheet by said skew correcting mechanism, wherein when an angle by which said skew correcting mechanism is rotated to correct the skew of the sheet is defined as θ, and a speed at which said skew correcting mechanism conveys the sheet in the rotated state is defined as V