Image forming apparatus and determination method
AssigneeSharp Kabushiki Kaisha
InventorYUSUKE SAKAKIBARA
Life of this patent
Estimating the term…
Abstract
Provided is an image forming apparatus having a simplified sensor structure and configured to determine both the moisture content and paper type of paper. An image forming apparatus includes light-emitting units configured to illuminate paper—with a plurality of types of emission light having mutually different peak wavelengths, a light-receiving unit configured to receive reflected light, reflected from the paper, of the plurality of types of emission light, and a paper determination unit configured to determine the moisture content and the paper type of the paper, based on received-light intensities of the plurality of types of reflected light.
Claims12
An image forming apparatus comprising:
- an illuminating unit configured to illuminate paper with a plurality of types of emission light having mutually different peak wavelengths;
- a light-receiving unit configured to receive a plurality of types of reflected light, reflected from the paper, of the plurality of types of emission light;
- and
- a determination unit configured to determine a moisture content and a paper type of the paper, based on received-light intensities of the plurality of types of reflected light received by the light-receiving unit.
A method for determining a moisture content and a paper type of paper, the method comprising:
- making an illuminating unit illuminate the paper with a plurality of types of emission light having mutually different peak wavelengths;
- making a light-receiving unit receive a plurality of types of reflected light, reflected from the paper, of the plurality of types of emission light;
- and
- determining the moisture content and the paper type of the paper, based on received-light intensities of the plurality of types of reflected light.
Dependencies are inferred from the claim text.