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US 2019/0020780 A1Published application
Image forming apparatus and image forming method
AssigneeRicoh Company, Ltd.
InventorsMitsutaka Iwasaki, Hidetoshi Suzuki
Life of this patent
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Abstract
An image forming apparatus includes a rotating body to form an image, a sensor to detect a home position of the rotating body, a processor to acquire image density data of the image formed by the rotating body in odd-numbered rotation and even-numbered rotation of the rotating body separately based on a rotation home position signal output by the sensor, extract an image density fluctuation caused by a rotation of the rotating body, and correct an image forming condition based on the image density fluctuation.
Claims8
An image forming apparatus comprising:
- a rotating body to form an image;
- a sensor to detect a home position of the rotating body;
- and
- a processor to acquire image density data of the image formed by the rotating body in odd-numbered rotation and even-numbered rotation of the rotating body separately based on a rotation home position signal output by the sensor, extract an image density fluctuation caused by a rotation of the rotating body, and correct an image forming condition based on the image density fluctuation.
1 more element
An image forming method comprising:
- detecting a home position of a rotating body to form an image;
- acquiring image density data of the image formed by the rotating body in even-numbered rotation and odd-numbered rotation separately while counting a number of rotations of the rotating body based on the home position detected;
- calculating an image density fluctuation of the image formed by the rotating body based on the image density data;
- and
- correcting an image forming condition based on the image density fluctuation.
2 more elements
Dependencies are inferred from the claim text.