Printing apparatus and printing method that correct image data based on a scanning result of an inspection pattern
US10576766B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2018 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | Mar 27, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2029/3935
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A printing apparatus includes a printing unit that prints an image based on image data, and an inspection pattern including a first patch, and a second patch different in color or having the same color and different in density than the first patch, each of the first and second patches being printed so as to extend in the first direction on the printing medium, and the first patch and the second patch being arranged in the second direction. A scanning unit includes a plurality of detection elements arranged in the second direction, and scans the inspection pattern, and a correcting unit corrects the image data based on a scanning result. The scanning unit scans the first patch using a first detection element and scans the second patch by using a second detection element which is farther away from a lens than the first detection element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.