Patent ID: 7380451
Filing Date: 2008-06-03
Classification: G03G

Abstract:
1. A sheet information output apparatus comprising: an application member for applying external force to a sheet, a receiving member arranged in opposition to the application member for receiving the external force through the sheet, and an output unit installed in the application member or the receiving member for outputting a signal according to the sheet, wherein the receiving member has a depressed portion at a position to which the external force is applied, wherein the depressed portion has a support portion for aerially supporting the sheet situated at the application position by bilaterally holding the sheet, and a bottom face receded from the support portion, and wherein when the smallest length of the sheet bilaterally held by the support portion is W, a depth from the support portion to the bottom face is d, and a length of the application member in a direction of the smallest length in the height d from the bottom face when the application member is brought into contact with the bottom face of the depressed portion is s, said W, s and d satisfy the relationship of [(W−s)/2>5d].