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US 8,523,320 B2Granted
Inkjet recording apparatus and inkjet recording method
AssigneeCanon Kabushiki Kaisha
InventorsShigeyasu Nagoshi, Satoshi Azuma, Yoshiaki Murayama, Minoru Teshigawara, Susumu Hirosawa, Yutaka Kano, Takeshi Murase, Kentarou Muro, Masao Kato, Minako Kato
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Abstract
The present invention provides a recording apparatus including recording heads each including a plurality of nozzle arrays that are arranged so as to overlap, wherein overlapping portions of the recording heads for two different colors are separated from each other with a distance therebetween in an array direction of nozzles.
Claims13
An inkjet recording apparatus comprising:
- recording heads for ejecting inks each corresponding to first, second and third colors respectively, and
- a recording control unit configured to control recording by ejecting the inks from the recording heads while moving a recording medium relative to the recording heads,
- wherein each of the recording heads includes a plurality of nozzle arrays that are arranged so as to be shifted from each other in an array direction of nozzles so that the nozzle arrays have an overlapping portion in which positions of the nozzles in the array direction correspond to each other, and the recording heads corresponding to the first color, the second color and the third color are arranged in an intersecting direction that intersects the array direction such that a position of at least a part of the plurality of nozzle arrays of the recording head corresponding to the first color, a position of at least a part of the plurality of nozzle arrays of the recording head corresponding to the second color, and a position of at least a part of the plurality of nozzle arrays of the recording head corresponding to the third color coincide with each other in the array direction, and
- wherein a distance between a position of the recording head for the first color and a position of the recording head for the second color in the intersecting direction is larger than a distance between the position of the recording head for the first color and a position of the recording head for the third color in the intersecting direction, and
- wherein a position of a first overlapping portion of the recording head for the first color is positioned, in the array direction, between a position of a second overlapping portion of the recording head for the second color, which is the closest to the first overlapping portion in the array direction among overlapping portions of the recording head for the second color, and a position of a third overlapping portion of the recording head for the third color, which is the closest to the first overlapping portion in the array direction among overlapping portions of the recording head for the third color, and
- wherein the position of the first overlapping portion in the array direction is separated from each of the positions of the second and third overlapping portions in the array direction, and
- wherein a distance between the positions of the first and second overlapping portions in the array direction is larger than a distance between the positions of the first and third overlapping portions in the array direction.
4 more elements
An inkjet recording method comprising:
- performing recording by moving a recording medium relative to recording heads each corresponding to first, second and third colors respectively and by ejecting inks of the first, second and third colors from the recording heads,
- wherein each of the recording heads includes a plurality of nozzle arrays that are arranged so as to be shifted from each other in an array direction of nozzles so that the nozzle arrays have an overlapping portion in which positions of the nozzles in the array direction correspond to each other, and the recording heads corresponding to the first color, the second color and the third color are arranged in an intersecting direction that intersects the array direction such that a position of at least a part of the plurality of nozzle arrays of the recording head corresponding to the first color, a position of at least a part of the plurality of nozzle arrays of the recording head corresponding to the second color, and a position of at least a part of the plurality of nozzle arrays of the recording head corresponding to the third color coincide with each other in the array direction, and
- wherein a distance between a position of the recording head for the first color and a position of the recording head for the second color in the intersecting direction is larger than a distance between the position of the recording head for the first color and a position of the recording head for the third color in the intersecting direction, and
- wherein a position of a first overlapping portion of the recording head for the first color is positioned between a position of a second overlapping portion of the recording head for the second color in the array direction, which is the closest to the first overlapping portion in the array direction among overlapping portions of the recording head for the second color, and a position of a third overlapping portion of the recording head for the third color in the array direction, which is the closest to the first overlapping portion in the array direction among overlapping portions of the recording head for the third color, and
- wherein the position of the first overlapping portion in the array direction is separated from each of the positions of the second and third overlapping portions in the array direction, and
- wherein a distance between the positions of the first and second overlapping portions in the array direction is larger than a distance between the positions of the first and third overlapping portions in the array direction.
3 more elements
Dependencies are inferred from the claim text.