US 12,138,912 B2
Printer, printed matter, and printing method
Hikaru Hasegawa, Hamamatsu (JP); and Masanori Ishihara, Hamamatsu (JP)
Assigned to ROLAND DG CORPORATION, Shizuoka (JP)
Filed by Roland DG Corporation, Hamamatsu (JP)
Filed on Aug. 25, 2022, as Appl. No. 17/895,351.
Claims priority of application No. 2021-142335 (JP), filed on Sep. 1, 2021.
Prior Publication US 2023/0066252 A1, Mar. 2, 2023
Int. Cl. B41J 2/21 (2006.01); B41J 2/045 (2006.01); B41M 5/50 (2006.01); B41J 11/00 (2006.01)
CPC B41J 2/04505 (2013.01) [B41J 2/04586 (2013.01); B41J 2/2114 (2013.01); B41M 5/502 (2013.01); B41J 11/00214 (2021.01)] 21 Claims
OG exemplary drawing
 
1. A printer comprising:
a support table to support a medium;
an ink head to discharge ink onto or toward the medium supported by the support table;
a conveyor to move the ink head relative to the medium supported by the support table; and
a controller configured or programmed to exercise control so as to print a print layer on or over the medium by using only the ink discharged from the ink head; wherein
the print layer includes:
at least one first print region including a plurality of first protrusions; and
at least one second print region including a plurality of second protrusions;
any one or more of a size, a height, a planar shape, an arrangement interval, and an arrangement direction of the first protrusions in the first print region is/are different from a corresponding one or more of a size, a height, a planar shape, an arrangement interval, and an arrangement direction of the second protrusions in the second print region; and
when an extracted area that is about 3 cm by about 3 cm is extracted from any location in the print layer, the first and second print regions are in the extracted area, and
at least either a plurality of first print regions or a plurality of second print regions are in the extracted area.