Printing apparatus, printing method, and storage medium

A printing method comprising:

• causing a printing unit in which a plurality of printing elements for ejecting ink are arrayed to reciprocate and scan in a first direction intersecting an array direction of the plurality of printing elements and a second direction opposite to the first direction;
• setting one printing mode from among a plurality of printing modes including a first printing mode in which printing of an image on a predetermined region on a printing medium is completed by one scan of the printing unit in the first direction or the second direction and a second printing mode in which printing of an image on the predetermined region is completed by a plurality of scans of the printing unit including scans in both of the first direction and the second direction;
• controlling an ejection timing of the ink in the case where the printing unit scans in the first direction and an ejection timing of the ink in a case where the printing unit scans in the second direction;
• and
• controlling an ejection timing of the printing unit such that a first distance becomes shorter than a second distance, where
• the first distance is a distance in the scanning direction between a landing position at which an ink droplet lands on the printing medium in the case where the printing unit scans in the first direction and a landing position at which an ink droplet lands on the printing medium in the case where the printing unit scans in the second direction, in the first printing mode, and
• the second distance is a distance in the scanning direction between a landing position at which an ink droplet lands on the printing medium in the case where the printing unit scans in the first direction and a landing position at which an ink droplet lands on the printing medium in the case where the printing unit scans in the second direction, in the second printing mode.

A non-transitory computer readable storage medium storing a program which causes a computer to perform a printing method, the printing method comprising:

• causing a printing unit in which a plurality of printing elements for ejecting ink are arrayed to reciprocate and scan in a first direction intersecting an array direction of the plurality of printing elements and a second direction opposite to the first direction;
• setting one printing mode from among a plurality of printing modes including a first printing mode in which printing of an image on a predetermined region on a printing medium is completed by one scan of the printing unit in the first direction or the second direction and a second printing mode in which printing of an image on the predetermined region is completed by a plurality of scans of the printing unit including scans in both of the first direction and the second direction;
• controlling an ejection timing of the ink in the case where the printing unit scans in the first direction and an ejection timing of the ink in a case where the printing unit scans in the second direction;
• and
• controlling an ejection timing of the printing unit such that a first distance becomes shorter than a second distance, where
• the first distance is a distance in the scanning direction between a landing position at which an ink droplet lands on the printing medium in the case where the printing unit scans in the first direction and a landing position at which an ink droplet lands on the printing medium in the case where the printing unit scans in the second direction, in the first printing mode, and
• the second distance is a distance in the scanning direction between a landing position at which an ink droplet lands on the printing medium in the case where the printing unit scans in the first direction and a landing position at which an ink droplet lands on the printing medium in the case where the printing unit scans in the second direction, in the second printing mode.