PRINTING METHOD AND PRINTING APPARATUS
摘要:
A printing method includes by printing a first area in a test pattern using a first print mode, determining a first correction value corresponding to the first print mode for each of the row regions, based on a density measurement value for each of row regions in the first area, by printing a second area in the test pattern using a second print mode for a plurality of cycles of periods that is determined by a combination of the row region and the nozzle, determining a second correction value corresponding to the second print mode for each of the row regions, based on a density measurement value for each of the row regions in the second area, and in a coexistent segment in which certain row regions and other row regions are mixed, correcting an ink ejection amount in each of the row regions using a combined correction value that is obtained as a composition of the first correction value and the second correction value. The first print mode is a print mode applied to an end area of a medium in a transport direction, and involves repetitively carrying out a movement-and-ejection operation of ejecting ink while moving nozzles in a movement direction that intersects the transport direction and a first transport operation of transporting the medium in the transport direction by a first transport amount. The row regions are a plurality of regions lined up in the transport direction and are each a region in which a dot row is formed along the movement direction by the movement-and-ejection operation. The first correction value is determined based on a value in which the first provisional correction value is multiplied by an attenuation coefficient. The first provisional correction value is determined for each row region based on a density measurement value of each of the row regions in the first area. The second print mode is a print mode applied to a middle area of the medium in the transport direction, and involves repetitively carrying out the movement-and-ejection operation and a second transport operation of transporting the medium in the transport direction by a second transport amount. The second correction value is determined based on a value in which the second provisional correction value is averaged. The second provisional correction value is determined for each of the row regions based on a density measurement value of each of the row regions in the second area. The certain row regions are each a row region in which the dot row is formed by the first print mode, and the other row regions are each a row region in which the dot row is formed by the second print mode.
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