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US 2010/0103441 A1Published application
Image forming apparatus, image forming method, and image forming program
AssigneeCanon Kabushiki Kaisha
InventorHiroshi Ooya
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AssigneeCanon Kabushiki Kaisha
InventorHiroshi Ooya
Estimating the term…
A printer not optically correcting bends and inclinations of scanning lines needs to execute such control as to electrically correct them. However, a conventional correction method has a problem that this correction causes an image defect such as an image streak or an uneven density in a specific area. A correction method of the present invention, when an input image has only one color, executes only correction by a second correction component which corrects distortions in a main scanning direction without executing correction by a first correction component which corrects bends and inclinations in a sub-scanning direction, and when an input image has two or more colors, executes both of correction by the first correction component and correction by the second correction component. This control can reduce the frequency of occurrence of an image defect.
An image forming apparatus which causes each of a plurality of light beams to scan in a main scanning direction and a sub-scanning direction vertical to the main scanning direction to form an image having a plurality of colors, the apparatus comprising:
An image forming method of an image forming apparatus which causes each of a plurality of light beams to scan in a main scanning direction and a sub-scanning direction vertical to the main scanning direction to form an image having a plurality of colors, the method comprising the steps of:
A program on a computer readable medium for an image forming method of an image forming apparatus which causes each of a plurality of light beams to scan in a main scanning direction and a sub-scanning direction vertical to the main scanning direction to form an image having a plurality of colors, the method comprising the steps of:
Dependencies are inferred from the claim text.