Image forming apparatus that performs image corrections based on test images and control method for image forming apparatus
AssigneeToshiba Tec Kabushiki Kaisha
InventorsKen Iguchi, Suguru Kurita, Satoshi Araki
Life of this patent
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Abstract
According to an embodiment, an image forming apparatus includes an image forming device, a scanning device, and a controller. The image forming device forms a first test image and forms a second test image. The scanning device scans the first test image with a first amount of emitted light corresponding to a first input value and scans the second test image with a second amount of emitted light corresponding to a second input value. The controller selectively executes any one of a first correction process, a second correction process, or a third correction process on the basis of an event change.
Claims10
An image forming apparatus that forms an image with a plurality of colors, comprising:
- an image forming device that forms a first test image on a basis of first test image data associated with an image density correction process of correcting density of the image to be formed and forms a second test image on a basis of second test image data associated with a color distortion correction process of correcting color distortion of the image to be formed;
- a scanning device that scans the first test image with a first amount of emitted light corresponding to a first input value and scans the second test image with a second amount of emitted light corresponding to a second input value;
- and
- a controller that selectively executes any one of a first light amount correction process or a second light amount correction process when the image density correction process is executed on a basis of an event change, wherein
- the first light amount correction process is performed for correcting the first input value so as to maintain the first amount of emitted light for the image density correction,
- the second light amount correction process is performed for correcting the second input value so as to maintain the second amount of emitted light for color distortion correction, and
- the controller executes the second light amount correction process at a higher frequency than the first light amount correction process.
A control method for an image forming apparatus that forms an image with a plurality of colors, comprising:
- forming, by an image forming device, a first test image on a basis of first test image data associated with an image density correction process of correcting density of the image to be formed and forms a second test image on a basis of second test image data associated with a color distortion correction process of correcting color distortion of the image to be formed;
- scanning, by a scanning device, the first test image with a first amount of emitted light corresponding to a first input value and scans the second test image with a second amount of emitted light corresponding to a second input value;
- and
- selectively executing, by a controller, any one of a first light amount correction process or a second light amount correction process when the image density correction process is executed on a basis of an event change, wherein
- the first light amount correction process is performed for correcting the first input value so as to maintain the first amount of emitted light for the image density correction,
- the second light amount correction process is performed for correcting the second input value so as to maintain the second amount of emitted light for color distortion correction, and
- executing, by a controller, the second light amount correction process at a higher frequency than the first light amount correction process.
Dependencies are inferred from the claim text.