Ink-jet printing method, ink-jet printing apparatus, and program

An ink-jet printing method of printing on a printing medium by discharging ink from a printhead constituted by arraying a plurality of printing nozzle arrays each formed by a plurality of printing nozzles for discharging ink, comprising:

• a generation step of generating printing data to be printed by each of at least first and second adjacent printing nozzle arrays out of the plurality of printing nozzle arrays;
• and
• a printing step of printing by discharging ink to a predetermined region of the printing medium from the first and second printing nozzle arrays on the basis of the printing data generated in the generation step,
• wherein in the generation step, printing data to be printed in the predetermined region by each of the first and second printing nozzle arrays is so generated as to suppress a sum of a printing ratio of printing by the first printing nozzle array and a printing ratio of printing by the second printing nozzle array to be not more than a predetermined ratio.

An ink-jet printing method of printing on a printing medium by discharging ink from a printhead constituted by arraying a plurality of printing nozzle arrays each formed by a plurality of printing nozzles for discharging ink, comprising:

• a generation step of generating printing data to be printed by each of at least first and second adjacent printing nozzle arrays out of the plurality of printing nozzle arrays;
• and
• a printing step of printing by discharging ink to a predetermined region of the printing medium from the first and second printing nozzle arrays on the basis of the printing data generated in the generation step,
• wherein in the generation step, printing data to be printed in the predetermined region by each of the first and second printing nozzle arrays is generated in a range in which influence of an air flow generated along with ink discharge from the first and second printing nozzle arrays is admissible.

An ink-jet printing apparatus which prints on a printing medium by discharging ink from a printhead constituted by arraying a plurality of ink discharge printing nozzle arrays, comprising:

• generation means for generating printing data to be printed by each of at least first and second adjacent printing nozzle arrays out of the plurality of printing nozzle arrays on the basis of tone information of image data to be printed;
• and
• control means for controlling printing by the first and second printing nozzle arrays on the basis of the printing data generated by said generation means,
• wherein said generation means generates printing data corresponding to each of the first and second printing nozzle arrays in a range in which a sum of the number of dots to be printed by the first printing nozzle array and the number of dots to be printed by the second printing nozzle array does not exceed a predetermined number.

An ink-jet printing apparatus which prints on a printing medium by discharging ink from a printhead constituted by arraying a plurality of printing nozzle arrays each formed by a plurality of printing nozzles for discharging ink, comprising:

• generation means for generating printing data to be printed by each of at least first and second adjacent printing nozzle arrays out of the plurality of printing nozzle arrays;
• and
• printing control means for printing by discharging ink to a predetermined region of the printing medium from the first and second printing nozzle arrays on the basis of the printing data generated by said generation means,
• wherein said generation means generates printing data to be printed in the predetermined region by each of the first and second printing nozzle arrays in a range in which influence of an air flow generated along with ink discharge from the first and second printing nozzle arrays is admissible.