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US 2018/0175096 A1Published application
Photoelectric conversion device, photoelectric conversion method, and image forming apparatus
AssigneeRicoh Company, Ltd.
InventorsKeita Inoue, Masamoto Nakazawa, Hiroki Shirado
Life of this patent
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Abstract
A photoelectric conversion device includes a generation circuit and a controller. The generation circuit generates an image signal according to an intensity of light being input. The controller controls the generation circuit to generate a dark-time image signal equivalent to an image signal generated by the generation circuit without exposure to external light.
Claims11
A photoelectric conversion device comprising:
- a generation circuit to generate an image signal according to an intensity of light being input;
- and
- a controller to control the generation circuit to generate a dark-time image signal equivalent to an image signal generated by the generation circuit without exposure to external light.
A photoelectric conversion method comprising:
- generating an image signal according to an intensity of light received by a generation circuit;
- and
- controlling the generation circuit to generate a dark-time image signal equivalent to an image signal generated by the generation circuit without exposure to external light.
An image forming apparatus comprising:
- a document tray to place a document;
- a light source to emit light to the document;
- and
- a photoelectric conversion device to receive the light reflected by the document,
- the photoelectric conversion device including:
- a generation circuit to generate an image signal according to an intensity of the light received, and
- a controller to control the generation circuit to generate a dark-time image signal equivalent to an image signal generated by the generation circuit without exposure to light coming from an outside of the image forming apparatus.
4 more elements
Dependencies are inferred from the claim text.