US 12,128,680 B2
Recording apparatus, recording and reading system, and recording method
Atsushi Goto, Nagano (JP); and Eiichi Ohara, Nagano (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Sep. 29, 2022, as Appl. No. 17/936,396.
Claims priority of application No. 2021-162854 (JP), filed on Oct. 1, 2021.
Prior Publication US 2023/0105968 A1, Apr. 6, 2023
Int. Cl. B41J 29/393 (2006.01); B41J 2/045 (2006.01)
CPC B41J 2/04505 (2013.01) [B41J 29/393 (2013.01); B41J 2029/3935 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A recording and reading system comprising:
a recording head having nozzles that eject liquid onto a medium;
a control section that controls ejection of the liquid from the recording head, the control section, by controlling the recording head,
recording a plurality of first patterns having mutually different densities, on the medium in an intersecting direction intersecting a nozzle alignment direction in which the nozzles are arranged, and
recording a plurality of second patterns for identifying positions of the nozzles in the nozzle alignment direction, on the medium in the intersecting direction, so that each of the first patterns is adjacent to a second pattern on at least one of one end side or the other end side in the intersecting direction;
a reading section that reads the first patterns and the second patterns recorded on the medium, the reading section being a sheet-feed type scanner that reads the medium while feeding the medium in a transport direction, the transport direction of the medium in the reading section matching the intersecting direction; and
an identifying section that, based on a read result by the reading section of the first patterns and the second patterns that are adjacent to each other, identifies read values of the first patterns at the positions of the nozzles in the nozzle alignment direction, respectively,
the control section determining correction values for the nozzles, respectively, for the ejection of the liquid based on the read values of the first patterns at the positions of the nozzles in the nozzle alignment direction.