Inkjet recording apparatus and inkjet recording method for carrying out recording by causing a recording head to eject ink
AssigneeCanon Kabushiki Kaisha
InventorsMitsutoshi Nagamura, Akihiro Kakinuma, Eiji Komamiya, Akihiro Tomida
Life of this patent
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Abstract
When recording is performed by causing a recording head to scan a unit region of a recording medium multiple times, values related to the respective amounts of inks of multiple colors to be ejected to each of sub-regions obtained by dividing the unit region in the scanning direction are obtained. On the basis of values related to the respective amounts of the inks of multiple colors for a sub-region of interest and neighboring sub-regions adjacent to the sub-region of interest, the number of scans for the unit region including the sub-region of interest is determined.
Claims18
An apparatus that records an image by causing a recording head for ejecting inks of multiple colors to scan each unit region of a recording medium, the apparatus comprising:
- an obtaining unit for obtaining values related to the respective amounts of the inks to be ejected to each of sub-regions obtained by dividing the unit region in a scanning direction;
- a determining unit for determining a number of scans for the unit region including a sub-region of interest on the basis of values related to the respective amounts of the inks for the sub-region of interest and neighboring sub-regions adjacent to the sub-region of interest;
- and
- a control unit for performing recording by causing the recording head to scan the unit region including the sub-region of interest a number of times represented by the determined number of scans,
- wherein the determining unit determines the number of scans for the unit region based on a difference in values related to the respective amounts of the inks between the sub-region of interest and the neighboring sub-regions, and also on values related to the respective amounts of the inks for the sub-region of interest.
A method for recording an image by causing a recording head for ejecting inks of multiple colors to scan each unit region of a recording medium, the method comprising:
- obtaining values related to the respective amounts of the inks to be ejected to each of sub-regions obtained by dividing the unit region in a scanning direction;
- determining a number of scans for the unit region including a sub-region of interest on the basis of values related to the respective amounts of the inks for the sub-region of interest and neighboring sub-regions adjacent to the sub-region of interest;
- and
- performing recording by causing the recording head to scan the unit region including the sub-region of interest a number of times represented by the determined number of scans,
- wherein the determining determines the number of scans for the unit region based on a difference in values related to the respective amounts of the inks between the sub-region of interest and the neighboring sub-regions, and also on values related to the respective amounts of the inks for the sub-region of interest.
Dependencies are inferred from the claim text.