Printing device and printing method

A printing method comprising:

• preparing a printing device including a plurality of heads configured to eject different electromagnetic wave hardened inks toward a medium, a plurality of irradiation sections configured to respectively correspond to the plurality of heads and to respectively irradiate electromagnetic waves to the different electromagnetic wave hardened inks ejected from the plurality of heads, and a controller configured to control the heads and the irradiation sections;
• performing a first ejecting operation where one head of the plurality of heads ejects one electromagnetic wave hardened ink of the different electromagnetic wave hardened inks;
• performing a first irradiation operation where an irradiation section, among the plurality of irradiation sections, corresponding to the one head irradiates the electromagnetic wave to the one electromagnetic wave hardened ink;
• performing a second ejecting operation where another head different from the one head ejects another electromagnetic wave hardened ink different from the one electromagnetic wave hardened ink toward a pixel on the medium where the one electromagnetic wave hardened ink is ejected such that the another electromagnetic wave hardened ink overlaps the one electromagnetic wave hardened ink;
• and
• performing a second irradiation operation where an irradiation section corresponding to the another head irradiates the electromagnetic wave to the another electromagnetic wave hardened ink, and
• wherein the operations are performed such that a contact angle of the another electromagnetic wave hardened ink relative to the one electromagnetic wave hardened ink is greater than 90 degrees.