Patent ID: 6115562
Filing Date: 2000-09-05
Classification: G03G

Abstract:
An image forming device comprising:an image carrying belt of a closed loop belt like shape to carry a toner image;an opposed transfer roller arranged on the inner side of said image carrying belt to transfer the toner image as carried on said image carrying belt onto a record medium by moving along the record medium;a detecting means for detecting the position of said opposed transfer roller;a controlling means for reversing the moving direction of said opposed transfer roller when the position of said opposed transfer roller detected by said detecting means reaches a specified position; anda width detecting means for detecting the width of a print medium in the moving direction of said opposed transfer roller, and characterized by having the moving direction of said opposed transfer roller reversed when the position of said opposed transfer roller detected by said detecting means reaches the position corresponding to the width of the print medium detected by said width detecting means, said width detecting means including a print sheet feeding guide,said detecting means being interlocked with said print sheet feeding guide such that the width of the print sheet feeding guide determines the position at which said detecting means will cause said opposed transfer roller to reverse direction.