Method and apparatus for deciding recording media based on light from a linear light source that passes a slit in a light shielding portion

摘要

A recording media deciding apparatus has: a light radiating portion which radiates light having a uniform light amount on a range corresponding to an image capturing range of a first surface of a bundle of recording media; a light detecting portion which captures an image of light emitted from a second surface different from the first surface of the bundle of the recording media; and a controller which decides on a type of the recording media based on an output of the light detecting portion.

主权项

1. A recording media deciding apparatus comprising:
a light radiating portion configured to radiate light on a first surface of a bundle of recording media, the light radiating portion including:
a linear light source, anda light shielding portion housing the linear light source, having a bottom portion configured to contact the first surface, and having a slit in the bottom portion through which the light radiated from the linear light source passes; a light detecting portion configured to capture an image of the light reflected from a second surface different from the first surface of the bundle of the recording media; and a controller configured to determine a type of the recording media based on an output of the light detecting portion.