Liquid discharging apparatus
There is provided a liquid discharging apparatus including: first and second head chips. The first and second head chips are arranged obliquely so that extending directions of nozzle rows are inclined with respect to both of a conveying direction and an orthogonal direction. A plurality of nozzles of the first head chip includes a first nozzle and a second nozzle adjacent to each other in a same nozzle row. A plurality of nozzles of the second head chip includes a third nozzle and a fourth nozzle adjacent to each other in a same nozzle row. The third nozzle is arranged between the first and second nozzles and the second nozzle is arranged between the third and fourth nozzles in the orthogonal direction, or the first and third nozzles are at a same position and the second and fourth nozzles are at a same position in the orthogonal direction.
1 . A liquid discharging apparatus comprising:
a first head chip having a nozzle surface in which a nozzle row is formed, a plurality of nozzles configured to discharge a liquid toward a recording medium being arranged in the nozzle row; and
a second head chip having a nozzle surface in which a nozzle row is formed, a plurality of nozzles configured to discharge a liquid toward the recording medium being arranged in the nozzle row, wherein:
the first head chip is arranged obliquely so that an extending direction of the nozzle row is inclined with respect to both of a conveying direction of the recording medium and an orthogonal direction orthogonal to the conveying direction, the nozzle row of the first head chip being formed as two or more nozzle rows;
the second head chip is arranged obliquely so that an extending direction of the nozzle row is inclined with respect to both of the conveying direction and the orthogonal direction, the nozzle row of the second head chip being formed as two or more nozzle rows;
the plurality of nozzles of the first head chip includes a first nozzle and a second nozzle, the first nozzle and the second nozzle being adjacent to each other in a same nozzle row of the two or more nozzle rows;
the plurality of nozzles of the second head chip includes a third nozzle and a fourth nozzle, the third nozzle and the fourth nozzle being adjacent to each other in a same nozzle row of the two or more nozzle rows;
the third nozzle is arranged between the first nozzle and the second nozzle in the orthogonal direction and the second nozzle is arranged between the third nozzle and the fourth nozzle in the orthogonal direction, or the first nozzle and the third nozzle are at a same position in the orthogonal direction and the second nozzle and the fourth nozzle are at a same position in the orthogonal direction;
in the first head chip, positions in the orthogonal direction of nozzles, of the plurality of nozzles, belonging to one nozzle row of the two or more nozzle rows and positions in the orthogonal direction of nozzles, of the plurality of nozzles, belonging to another nozzle row of the two or more nozzle rows are shifted from each other, respectively;
in the second head chip, positions in the orthogonal direction of nozzles, of the plurality of nozzles, belonging to one nozzle row of the two or more nozzle rows and positions in the orthogonal direction of nozzles, of the plurality of nozzles, belonging to another nozzle row of the two or more nozzle rows are shifted from each other, respectively; and
positions in the orthogonal direction of the plurality of nozzles of the first head chip and positions in the orthogonal direction of the plurality of nozzles of the second head chip are coincident with each other, respectively.
2 . The liquid discharging apparatus according to claim 1 , further comprising a controller, wherein:
the plurality of nozzles of the first head chip includes, regarding at least one of the two or more nozzle rows, a first nozzle group to which every other nozzles of the nozzles arranged in the extending direction of the nozzle row belong, and a second nozzle group to which remaining nozzles belong;
the plurality of nozzles of the second head chip includes, regarding at least one of the two or more nozzle rows, a first nozzle group to which every other nozzles of the nozzles arranged in the extending direction of the nozzle row belong, and a second nozzle group to which remaining nozzles belong; and
the controller is configured to execute, regarding each of the first head chip and the second head chip, an inter-nozzle groups discharge adjusting processing of making a discharging timing of the liquid from the first nozzle group and a discharging timing of the liquid from the second nozzle group different from each other.
3 . The liquid discharging apparatus according to claim 2 , wherein the controller is configured to execute, regarding at least one of the first head chip and the second head chip, an intra-nozzle group discharge adjusting processing of controlling a discharging timing of the liquid from nozzles within a same nozzle group of the first nozzle group and the second nozzle group, based on a difference in a position in the conveying direction of the nozzles with respect to the recording medium.
4 . The liquid discharging apparatus according to claim 1 , wherein:
a liquid of a same kind is supplied to all of the two or more nozzle rows of the first head chip;
a liquid of a same kind is supplied to all of the two or more nozzle rows of the second head chip; and
a kind of the liquid supplied to the first head chip and a kind of the liquid supplied to the second head chip are different from each other.