Recording control device and recording control method

A recording control device configured to control recording on a medium by a recording head including a nozzle row, a plurality of main scans in which the recording head and the medium relatively move in a main scan direction that intersects a nozzle alignment direction of the nozzle row, and a sub scan in which the recording head and the medium relatively move in a feed direction that intersects the main scan direction, wherein

• the plurality of main scans include a first main scan, and a second main scan in which an arrangement of the nozzle row in the feed direction partially overlaps the first main scan;
• when, in a recording region that is recorded on the medium during the first main scan and the second main scan, a region corresponding to a portion where the nozzle row is present during the first main scan and the nozzle row is not present during the second main scan is a first region, a region corresponding to an overlapping portion where the nozzle row is present during the first main scan and the second main scan is an overlapping region, a region corresponding to a portion where the nozzle row is present during the second main scan and the nozzle row is not present during the first main scan is a second region, a portion that is continuous from the first region and is not continuous to the second region in an output image that is formed on the medium in the overlapping region is a first portion, and a portion continuous with the first region and the second region in the output image in the overlapping region is a second portion,
• a first portion control section configured to form the first portion in such a manner that a use rate of the nozzle row during the first main scan in the overlapping portion is set to a first nozzle use rate, and a second portion control section configured to form the second portion in such a manner that the use rate of the nozzle row during the first main scan in the overlapping portion is set to a second nozzle use rate are provided;
• and
• the first nozzle use rate is higher than the second nozzle use rate.

A recording control method of controlling recording on a medium by a recording head including a plurality of nozzle rows, and a relative movement of the recording head and the medium in a relative movement direction that intersects a nozzle alignment direction of the plurality of nozzle rows, wherein

• the plurality of nozzle rows include a first nozzle row, and a second nozzle row that partially overlaps the first nozzle row in the nozzle alignment direction;
• when, in a recording region that is recorded on the medium during the relative movement, a region corresponding to a portion where the first nozzle row is present and the second nozzle row is not present is a first region, a region corresponding to an overlapping portion where the first nozzle row and the second nozzle row overlap each other is an overlapping region, a region corresponding to a portion where the second nozzle row is present and the first nozzle row is not present is a second region, a portion that is continuous from the first region and is not continuous to the second region in an output image that is formed on the medium in the overlapping region is a first portion, and a portion that is continuous with the first region and the second region in the output image in the overlapping region is a second portion,
• the method comprises:
• a first portion control step of forming the first portion in such a manner that a use rate of the first nozzle row of the overlapping portion is set to a first nozzle use rate;
• and
• a second portion control step of forming the second portion in such a manner that the use rate of the first nozzle row of the overlapping portion is set to a second nozzle use rate;
• and
• the first nozzle use rate is higher than the second nozzle use rate.

A recording control method of controlling recording on a medium by a recording head including a nozzle row, a plurality of main scans in which the recording head and the medium relatively move in a main scan direction that intersects a nozzle alignment direction of the nozzle row, and a sub scan in which the recording head and the medium relatively move in a feed direction that intersects the main scan direction, wherein

• the plurality of main scans include a first main scan, and a second main scan in which an arrangement of the nozzle row in the feed direction partially overlaps the first main scan;
• when, in a recording region that is recorded on the medium during the first main scan and the second main scan, a region corresponding to a portion where the nozzle row is present during the first main scan and the nozzle row is not present during the second main scan is a first region, a region corresponding to an overlapping portion where the nozzle row is present during the first main scan and the second main scan is an overlapping region, a region corresponding to a portion where the nozzle row is present during the second main scan and the nozzle row is not present during the first main scan is a second region, a portion that is continuous from the first region and is not continuous to the second region in an output image that is formed on the medium in the overlapping region is a first portion, and a portion continuous with the first region and the second region in the output image in the overlapping region is a second portion,
• the method comprises:
• a first portion control step of forming the first portion in such a manner that a use rate of the nozzle row during the first main scan in the overlapping portion is set to a first nozzle use rate;
• and
• a second portion control step of forming the second portion in such a manner that the use rate of the nozzle row during the first main scan in the overlapping portion is set to a second nozzle use rate;
• and
• the first nozzle use rate is higher than the second nozzle use rate.