Printing apparatus and printing method

Patent metadata

Field	Value
Publication number	US-11970016-B2
Application number	US-202017104053-A
Country	US
Kind code	B2
Filing date	Nov 25, 2020
Priority date	Nov 28, 2019
Publication date	Apr 30, 2024
Grant date	Apr 30, 2024

Abstract

A printing apparatus includes a transport unit that transports clothing fabric at which a pattern is formed, an imaging unit that images the clothing fabric transported by the transport unit, a printing unit that performs printing on the clothing fabric transported by the transport unit, and a control unit, the control unit registers first image data representing the pattern in a predetermined storage unit, extracts, based on a comparison between the first image data and second image data, a pattern region corresponding to the pattern in the second image data, the second image data is generated by imaging of the clothing fabric by imaging unit, corrects third image data representing an image to be printed overlaid on the pattern to match the shape of the pattern region, and causes the printing unit to perform the printing of the corrected third image data on the clothing fabric.

First claim

What is claimed is:

1. A printing apparatus comprising:
a transport unit configured to transport clothing fabric at which a pattern is formed;
an imaging unit configured to image the clothing fabric transported by the transport unit;
a printing unit configured to perform printing on the clothing fabric transported by the transport unit; and
a control unit, wherein
the control unit registers, in a predetermined storage unit, first image data representing the pattern,
extracts, based on a comparison between the first image data and second image data generated by imaging of the clothing fabric by the imaging unit, a plurality of pattern regions in the second image data such that each of the plurality of pattern regions includes the pattern,
corrects third image data that represent a region that has a rectangle shape and includes an image to be printed overlapping the pattern, such that the rectangle shape of the region of the third image data matches a shape of one of the plurality of pattern regions, the correcting being performed for each of the plurality of pattern regions to generate a plurality of pieces of corrected image data based on the third image data, and
causes the printing unit to print the plurality of pieces of corrected image data on the clothing fabric.

2. The printing apparatus according to claim 1 , wherein
the control unit registers, as the first image data, image data generated by pre-scanning of the clothing fabric.

3. The printing apparatus according to claim 1 , wherein
the control unit extracts the plurality of pattern regions based on a degree of matching between a distribution of edges in the first image data and a distribution of edges of each pattern in the second image data.

4. The printing apparatus according to claim 1 , wherein
the imaging unit is a linescan type camera in which a plurality of imaging elements are arranged in a direction intersecting a transport direction by the transport unit.

5. A printing method comprising:
registering, in a predetermined storage unit, first image data representing a pattern formed at clothing fabric;
transporting the clothing fabric;
imaging the transported clothing fabric;
extracting, based on a comparison between the first image data and second image data generated by imaging of the clothing fabric, a plurality of pattern regions in the second image data such that each of the plurality of pattern regions includes the pattern;
correcting third image data that represent a region that has a rectangle shape and includes an image to be printed overlapping the pattern, such that the rectangle shape of the region of the third image data matches a shape of one of the plurality of pattern regions, the correcting being performed for each of the plurality of pattern regions to generate a plurality of pieces of corrected image data based on the third image data; and
printing the plurality of pieces of corrected image data on the transported clothing fabric.

Assignees

• Seiko Epson Corp

Inventors

• Kayahara Naoki

Classifications

• B41J3/4078 Primary

  Printing on textile · CPC title

• B41J2/04505

  aiming at correcting alignment · CPC title

• B41J11/0095

  Detecting means for copy material, e.g. for detecting or sensing presence of copy material or its leading or trailing end · CPC title

• B41J2/01 Primary

  Ink jet · CPC title

• H04N1/387 Primary

  Composing, repositioning or otherwise {geometrically} modifying originals · CPC title