Patent Number: 7,711,276

Title: Sheet material discrimination apparatus, sheet material information output apparatus, and image forming apparatus

Abstract: Provided is a sheet material discrimination apparatus including: an impact force applying member for colliding with the surface of a sheet material, an impact force receiving member for receiving the impact force applying member through the sheet material, a detecting unit for outputting an electric signal corresponding to an impact force received by the impact force receiving member, and a cushioning material for absorbing the impact force transmitted to the detecting unit, wherein a support member having a bending rigidity higher than the bending rigidity of the detecting unit with respect to the impact force is arranged between the detecting unit and the cushioning material.

Inventors: Kawasaki; Takehiko (Atsugi, JP), Kaneko; Norio (Atsugi, JP), Gemma; Naoyo (Kawasaki, JP)

Assignee: Canon Kabushiki Kaisha

International Classification: G03G 15/00 (20060101)

Expiration Date: 5/04/12018