Moisture sensor and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsYUKI TANAKA, RYUICHI ARAKI
Life of this patent
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Abstract
A moisture sensor detects moisture in an object. A first light-emitting element emits light. A first reflecting member reflects light reflected from the object toward the object. A light-receiving element receives light that is multiple reflected between the object and the first reflecting member. A controller determines an amount of moisture in the object based on a light reception result from the light-receiving element.
Claims19
A moisture sensor that detects moisture in an object, the moisture sensor comprising:
- a first light-emitting element configured to emit light;
- a first reflecting member configured to reflect light reflected from the object toward the object;
- a light-receiving element configured to receive light that is multiple reflected between the object and the first reflecting member;
- and
- a controller configured to determine an amount of moisture in the object based on a light reception result from the light-receiving element.
An image forming apparatus that forms a toner image, the image forming apparatus comprising:
- a first light-emitting element configured to emit light;
- a first reflecting member configured to reflect light reflected from the toner image toward the toner image;
- a light-receiving element configured to receive light that is multiple reflected between the toner image and the first reflecting member;
- a transfer roller configured to transfer the toner image onto a sheet based on a transfer voltage;
- and
- a controller configured to control the transfer voltage based on a light reception result from the light-receiving element.
An image forming apparatus that forms a toner image, the image forming apparatus comprising:
- a first light-emitting element configured to emit light;
- a first reflecting member configured to reflect light reflected from the toner image toward the toner image;
- a light-receiving element configured to receive light that is multiple reflected between the toner image and the first reflecting member;
- a transfer roller configured to transfer the toner image onto a sheet;
- a heater configured to heat the toner image on the sheet;
- a reduction mechanism configured to reduce curling in the sheet caused by heating the sheet by the heater;
- and
- a controller configured to control the reduction mechanism based on a light reception result from the light-receiving element.
Dependencies are inferred from the claim text.