Patent ID: 6862081
Filing Date: 2005-03-01
Classification: G03B

Abstract:
1. An image forming apparatus comprising: a pair of sheet transporting members having rotary shafts provided coaxially with each other along a cross direction perpendicular to a transport direction of a sheet, and rotatively driven independently of each other to thereby transport the sheet; detecting means extending along the cross direction for detecting a transported state of the sheet transported by said pair of sheet transporting members; and control means for controlling said pair of sheet transporting members on the basis of detection information of said detecting means to correct a sheet position in said cross direction and a skew feed posture of the sheet relative to the transport direction, wherein said detecting means is a line sensor arranged parallel to said cross direction, and a size of a detectable area in said cross direction by said line sensor is larger than a size in said cross direction of at least an area through which the transporting sheet passes.