US 11,745,518 B2
Printing apparatus
Yoshitsugu Tokai, Matsumoto (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by Seiko Epson Corporation, Tokyo (JP)
Filed on Mar. 7, 2022, as Appl. No. 17/653,727.
Claims priority of application No. 2021-037087 (JP), filed on Mar. 9, 2021.
Prior Publication US 2022/0288953 A1, Sep. 15, 2022
Int. Cl. B41J 11/00 (2006.01)
CPC B41J 11/00214 (2021.01) 11 Claims
OG exemplary drawing
 
1. A printing apparatus comprising:
a printing head configured to reciprocate in a first direction and configured to discharge ultraviolet curable ink onto a medium,
an ultraviolet irradiation unit configured to reciprocate in the first direction along with the printing head, and configured to irradiate the ultraviolet curable ink discharged onto the medium with ultraviolet rays,
a first movement unit configured to move the printing head and the ultraviolet irradiation unit in the first direction,
a second movement unit configured to relatively move the printing head and the ultraviolet irradiation unit, and the medium, in a second direction that intersects with the first direction, and
a control unit configured to control a first movement that is a movement of the printing head and the ultraviolet irradiation unit in the first direction, a second movement that is a relative movement between, the printing head and the ultraviolet irradiation unit, and the medium, in the second direction, discharge of the ultraviolet curable ink from the printing head, and irradiation of the ultraviolet rays from the ultraviolet irradiation unit, wherein
the control unit is configured to perform a first control of performing discharge of the ultraviolet curable ink from the printing head and irradiation of the ultraviolet rays from the ultraviolet irradiation unit while performing the first movement and the second movement from a print start position side to a print end position side of the medium, and a second control of performing irradiation of the ultraviolet rays from the ultraviolet irradiation unit without performing discharge of the ultraviolet curable ink from the printing head while performing the first movement and the second movement from the print end position side to the print start position side, and
a second speed that is a movement speed of the first movement of the printing head and the ultraviolet irradiation unit in the second control is faster than a first speed that is a movement speed of the first movement of the printing head and the ultraviolet irradiation unit in the first control.