Control device and non-transitory computer-readable medium

A non-transitory computer-readable medium storing a computer program readable by a computer configured to control a print execution device, the print execution device comprising a print head having a plurality of nozzles configured to eject ink, a head driver configured to cause the print head to eject the ink to form dots on a printing medium, and a mover configured to move the printing medium relative to the print head in a moving direction, the computer program, when executed by the computer, causes the computer to perform:

• obtaining target image data;
• generating dot data indicating a formation state of the dots for each pixel by using the target image data;
• and
• controlling the print execution device to print a print image using the dot data by alternately executing a partial printing of controlling the print head to form the dots and a moving of controlling the mover to move the printing medium,
• wherein in the controlling of the print execution device, the computer program further causes the computer to perform:
• controlling the print execution device to execute a first partial printing;
• controlling the mover to move the printing medium by a specific moving amount after the first partial printing;
• and
• controlling the print execution device to execute a second partial printing after moving the printing medium by the specific moving amount,
• in the first partial printing, the computer program causes the computer to control the print head to:
• form the dots in an overlapping area and a first non-overlapping area, the overlapping area including an upstream end of an area printable by the first partial printing with respect to the moving direction, the first non-overlapping area being a non-overlapping area different from the overlapping area and located downstream of the overlapping area of the printable by the first partial printing with respect to the moving direction;
• and
• not to form the dots in a second non-overlapping area, the second non-overlapping area being a non-overlapping area located upstream of the overlapping area of an area printable by the second partial printing with respect to the moving direction, and
• in the second partial printing, the computer program causes the computer to control the print head to:
• form the dots in the overlapping area and the second non-overlapping area;
• and
• not to form the dots in the first non-overlapping area,
• wherein in the generating of the dot data, the computer program further causes the computer to perform:
• generating first data of the dot data, the first data corresponding to the non-overlapping area, by executing non-overlapping area processing for non-overlapping area data of the target image data, the non-overlapping area data corresponding to the non-overlapping area;
• and
• generating second data of the dot data, the second data corresponding to the overlapping area, by executing overlapping area processing for overlapping area data of the target image data, the overlapping area processing being different from the non-overlapping area processing, the overlapping data corresponding to the overlapping area,
• wherein the overlapping area processing includes:
• first processing to be executed for values of pixels within a first color range;
• and
• second processing to be executed for values of pixels within a second color range different from the first color range, the second processing being different from the first processing, and
• wherein the first processing includes first density lowering processing of lowering a density of an image to be printed in the overlapping area, as compared to if the non-overlapping area processing was executed on the overlapping area data.

A control device for controlling a print execution device, the print execution device comprising a print head having a plurality of nozzles configured to eject ink, a head driver configured to cause the print head to eject the ink to form dots on a printing medium, and a mover configured to move the printing medium relative to the print head in a moving direction, the control device being configured to:

• obtain target image data;
• generate dot data indicating a formation state of the dots for each pixel using the target image data;
• and
• control the print execution device to print a print image using the dot data by alternately executing a partial printing of controlling the print head to form the dots and a moving of controlling the mover to move the printing medium for plural times,
• wherein in the controlling of the print execution device, the control device is configured to:
• control the print execution device to execute a first partial printing;
• control the mover to move the printing medium by a specific moving amount after the first partial printing;
• and
• control the print execution device to execute a second partial printing after moving the printing medium by the specific moving amount,
• in the first partial printing, the control device being configured to control the print head to:
• form the dots in an overlapping area and a first non-overlapping area, the overlapping area including an upstream end of an area printable by the first partial printing with respect to the moving direction, the first non-overlapping area being a non-overlapping area different from the overlapping area and located downstream of the overlapping area of the area printable by the first partial printing with respect to the moving direction;
• and
• not to form the dots in a second non-overlapping area, the second non-overlapping area being a non-overlapping area located upstream of the overlapping area of an area printable by the second partial printing with respect to the moving direction, and
• in the second partial printing, the control device being configured to control the print head to:
• form the dots in the overlapping area and the second non-overlapping area;
• and
• not to form the dots in the first non-overlapping area,
• wherein in the generating of the dot data, the control device is configured to:
• generate data of the dot data corresponding to first area by executing first area processing for first area data of the target image data, the first area data corresponding to the first area, the first area being at least part of the overlapping area;
• and
• generate data of the dot data corresponding to second area by executing second area processing for second area data of the target image data, the second area processing being different from the first area processing, the second area data corresponding to the second area, the second area being different from the first area,
• wherein the first area processing includes:
• first processing to be executed for values of pixels within a first range;
• and
• second processing to be executed for values of pixels within a second range different from the first range, the second processing being different from the first processing;
• and
• wherein the first processing includes first density lowering processing of lowering a density of an image to be printed in the first area, as compared to if the second area processing was executed on the first area data.

A non-transitory computer-readable medium storing a computer program readable by a computer configured to control a print execution device, the print execution device comprising a print head having a plurality of nozzles configured to eject ink, a head driver configured to cause the print head to eject the ink to form dots on a printing medium, and a mover configured to move the printing medium relative to the print head in a moving direction, the computer program, when executed by the computer, causes the computer to perform:

• obtaining target image data;
• generating dot data indicating a formation state of the dots for each pixel by using the target image data;
• and
• controlling the print execution device to print a print image using the dot data by alternately executing a partial printing of controlling the print head to form the dots and a moving of controlling the mover to move the printing medium,
• wherein in the controlling of the print execution device, the computer program further causes the computer to perform:
• controlling the print execution device to execute a first partial printing;
• controlling the mover to move the printing medium by a specific moving amount after the first partial printing;
• and
• controlling the print execution device to execute a second partial printing after moving the printing medium by the specific moving amount,
• in the first partial printing, the computer program causes the computer to control the print head to:
• form the dots in an overlapping area and a first non-overlapping area, the overlapping area including an upstream end of an area printable by the first partial printing with respect to the moving direction, the first non-overlapping area being a non-overlapping area different from the overlapping area and located downstream of the overlapping area of the printable by the first partial printing with respect to the moving direction;
• and
• not to form the dots in a second non-overlapping area, the second non-overlapping area being a non-overlapping area located upstream of the overlapping area of an area printable by the second partial printing with respect to the moving direction, and
• in the second partial printing, the computer program causes the computer to control the print head to:
• form the dots in the overlapping area and the second non-overlapping area;
• and
• not to form the dots in the first non-overlapping area,
• wherein in the generating of the dot data, the computer program further causes the computer to perform:
• generating data of the dot data corresponding to first area by executing first area processing for first area data of the target image data, the first area data corresponding to the first area, the first area being at least part of the overlapping area;
• and
• generating data of the dot data corresponding to second area by executing second area processing for second area data of the target image data, the second area processing being different from the first area processing, the second area data corresponding to the second area, the second area being different from the first area,
• wherein the first area processing includes:
• first processing to be executed for values of pixels within a first color range;
• and
• second processing to be executed for values of pixels within a second color range different from the first color range, the second processing being different from the first processing, and
• wherein the first processing includes first density lowering processing of lowering a density of an image to be printed in the first area, as compared to if the second area processing was executed on the first area data.