Method and apparatus for deciding recording media based on light from a linear light source that passes a slit in a light shielding portion
AssigneesKabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
InventorsHiromichi Hayashihara, Masataka Shiratsuchi
Life of this patent
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Abstract
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.
Claims20
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, and
- a 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.
An image forming apparatus comprising:
- a recording media supplying unit configured to supply recording media;
- a recording media conveying mechanism configured to supply the recording media supplied from the recording media supplying unit;
- an image forming portion configured to form an image on the recording media;
- 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, and
- a 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.
A recording media deciding method comprising:
- radiating light on a first surface of a bundle of recording media with a light radiating portion that includes:
- a linear light source, and
- a 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;
- capturing an image of the light reflected from a second surface different from the first surface of the bundle of the recording media;
- and
- determining a type of the recording media based on the captured image.
Dependencies are inferred from the claim text.