发明授权
US07711276B2 Sheet material discrimination apparatus, sheet material information output apparatus, and image forming apparatus 失效
片材鉴别装置,片材信息输出装置和图像形成装置

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