Image forming apparatus
    2.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US08911054B2

    公开(公告)日:2014-12-16

    申请号:US14205865

    申请日:2014-03-12

    IPC分类号: B41J29/38 B41J11/00

    摘要: An image forming apparatus includes an image forming device, a belt member, a reflection-type photosensor, and a reflection member. The belt member includes plural suction holes to attract a printing medium onto the belt member. The reflection member reflects light from the reflection-type photosensor through the suction holes. The reflection member is disposed inside the belt member. The reflection member has a reflection rate at which, when the reflection-type photosensor receives reflection light at positions of the suction holes with a transparent printing medium being not present on the belt member, a sensor output of the reflection-type photosensor is lower than a predetermined reference value, and when the reflection-type photosensor receives reflection light at the positions of the suction holes with the transparent printing medium being present on the belt member, a sensor output of the reflection-type photosensor is equal to or greater than the predetermined reference value.

    摘要翻译: 图像形成装置包括图像形成装置,带构件,反射型光电传感器和反射构件。 带构件包括多个吸引孔,以将打印介质吸引到带构件上。 反射构件通过吸孔反射来自反射型光电传感器的光。 反射构件设置在带构件内。 反射构件具有反射率,当反射型光电传感器在带构件上不存在透明打印介质的吸入孔的位置处接收反射光时,反射型光电传感器的传感器输出低于 预定的参考值,并且当反射型光电传感器在带构件上存在透明打印介质的吸入孔的位置处接收反射光时,反射型光电传感器的传感器输出等于或大于 预定参考值。