Ink jet recording apparatus and ink jet recording method
AssigneeFuji Xerox Co., Ltd.
InventorFumihiko Ogasawara
Life of this patent
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Abstract
An ink jet recording apparatus includes: a black print head that discharges black ink; a color print head that discharges color ink having a higher permeability with a recording paper sheet than the black ink; and a determining unit that detects, based on input data, a black image region in which recording is performed with the black ink and a color image region in which recording is performed with the color ink, and, based on the detection result, determines whether the black ink or the color ink is first applied onto the recording paper sheet. In this ink jet recording apparatus, each of the black print head and the color print head has nozzles divided into several sets, and a multi-path recording operation is performed by scanning each recording region several times with the sets of nozzles.
Claims19
An ink jet recording apparatus comprising:
- a black print head that discharges black ink;
- a color print head that discharges color ink having a higher permeability with a recording paper sheet than the black ink;
- and
- a determining unit that detects, based on input data, a black image region in which recording is performed with the black ink and a color image region in which recording is performed with the color ink, and, based on the detection result, determines whether the black ink or the color ink is first applied onto the recording paper sheet,
- wherein each of the black print head and the color print head having nozzles divided into a plurality of sets, and a multi-path recording operation being performed by scanning each recording region a plurality of times with the plurality of sets of nozzles, and
- wherein the black ink and the color ink are not applied in adjacent regions in the same recording scan, the black ink being applied first in regions in which the black ink region and the color ink region are adjacent to each other.
An ink jet recording method for performing a multi-path recording operation with a black print head that discharges black ink and a color print head that discharges color ink having a higher permeability with a recording paper sheet than the black ink, each of the print heads having nozzles being divided into a plurality of sets, and the multi-path recording operation being performed by scanning each recording region a plurality of times with the plurality of sets of nozzles, the method comprising:
- detecting, based on input data, a black image region in which recording is performed with the black ink and a color image region in which recording is performed with the color ink;
- determining, based on the detection result, whether the black ink or the color ink is first used to perform recording on the recording paper sheet;
- and
- applying the black ink and the color ink such that the black ink and color ink are not applied in adjacent regions in the same recording scan, the black ink being applied first in regions in which the black ink region and the color ink region are adjacent to each other.
Dependencies are inferred from the claim text.