METHOD OF ACQUIRING CORRECTION VALUE AND METHOD OF MANUFACTURING LIQUID DISCHARGING APPARATUS

摘要

There is provided a method of acquiring a correction value of a liquid discharging apparatus that includes a first nozzle row, a second nozzle row, a third nozzle row, and a fourth nozzle row, the method includes: acquiring the amount of deviation (heterogeneous row error) of a dot formed by the third nozzle row in the predetermined direction, acquiring the amount of deviation (overlapping area error) between the dot formed by the third nozzle row and a dot formed by the fourth nozzle row in the predetermined direction, and acquiring a correction value which causes discharge data assigned to the fourth nozzle row to shift in the predetermined direction based on the heterogeneous row error and the overlapping area error.

主权项

1. A method of acquiring a correction value of a liquid discharging apparatus that includes
a first head having a first nozzle row formed in such a way that a plurality of first nozzles for discharging first liquid are placed in predetermined inter-nozzle pitch in a predetermined direction, a second head having a second nozzle row formed in such a way that a plurality of second nozzles for discharging the first liquid are placed in the predetermined inter-nozzle pitch in the predetermined direction, a third head having a third nozzle row formed in such a way that a plurality of third nozzles for discharging second liquid, a color of which is different from a color of the first liquid, are placed in the predetermined inter-nozzle pitch in the predetermined direction, and a fourth head having a fourth nozzle row formed in such a way that a plurality of fourth nozzles for discharging the second liquid are placed in the predetermined inter-nozzle pitch in the predetermined direction, wherein a part of the first nozzle row overlaps with a part of the second nozzle row and a part of the third nozzle row overlaps with a part of the fourth nozzle row when viewed from a direction crossing the predetermined direction, the method comprising: acquiring a first heterogeneous row error which is an amount of deviation of a dot formation position actually formed by the third nozzle row in the predetermined direction with regard to the ideal position when a dot formation position formed by the first nozzle row is a reference position and a dot formation position, in which a dot formation position formed by the third nozzle row is an ideal position with regard to the reference position, is an ideal position; acquiring a first overlapping area error which is an amount of deviation between a dot formation position formed by the first overlapping nozzle and a dot formation position formed by a second overlapping nozzle in the predetermined direction when viewed from a direction crossing the predetermined direction and when one of the third nozzles which is located in an overlapping area where the third nozzle row overlaps with the fourth nozzle row is a first overlapping nozzle and a nozzle in the plurality of fourth nozzles, which is capable of forming a dot having a closest dot formation position to the dot formation position formed by the first overlapping nozzle in the predetermined direction is the second overlapping nozzle; and acquiring a first correction value which causes discharge data assigned to the fourth nozzle row to shift in the predetermined direction based on the first heterogeneous row error and the first overlapping area error.