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US 11,711,476 B2Granted
Image forming system that inspects quality of an image formed on a sheet
AssigneeCanon Kabushiki Kaisha
InventorYosuke Kagawa
Life of this patent
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Abstract
A first surface of a first sheet has a second image formed in advance. An image forming system generates reference data based on a result of reading an image on the first surface of the first sheet on which a first image is not formed, generates first image data that represents a result of reading an image on the first surface of the first sheet having the first image formed on the first surface, and determines, based on the reference data and the first image data, a relative position between the first image and the second image on the first surface of the first sheet.
Claims16
An image forming system comprising:
- a printer configured to form a first image on a first surface of a first sheet, the first surface of the first sheet having a second image formed in advance;
- an image sensor provided on a downstream side of the printer in a conveyance direction in which the first sheet is conveyed, and configured to read an image on the first sheet conveyed;
- at least one processor configured:
- to generate reference data based on a result of reading, by the image sensor, an image on the first surface of the first sheet on which the first image is not formed;
- to generate first image data that represents a result of reading, by the image sensor, an image on the first surface of the first sheet having the first image formed on the first surface by the printer;
- and
- to determine, based on the reference data and the first image data, a relative position between the first image and the second image on the first surface of the first sheet on which the first image is formed;
- and
- an input unit including a display configured to display an image that includes the second image and does not include the first image,
- wherein the input unit accepts selection of a determination area by a user in the image displayed on the display, the determination area being an area in which the relative position is to be determined, and
- wherein the at least one processor determines the relative position between the first image and the second image in the determination area on the first surface of the first sheet on which the first image is formed, based on the reference data and the first image data.
8 more elements
Dependencies are inferred from the claim text.