Printing apparatus and colorimetry control method of printing apparatus
US11134177B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 20, 2020 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | Apr 24, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6044
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A printing apparatus includes a printing unit configured to move in a scanning direction, a color measuring unit configured to move in the scanning direction with the printing unit and perform colorimetry on patches, and a control unit configured to execute a scanning operation of moving the color measuring unit to pass the color measuring unit over the patches and thus cause the color measuring unit to read a wavelength of reflected light of the patches. The color measuring unit is configured to read light corresponding to a wavelength region selected from within a wavelength region of light divided into a plurality of wavelength regions. The control unit is configured to cause the color measuring unit to read, in one scanning operation, light corresponding to a portion of the plurality of wavelength regions of light to be read, perform a plurality of the scanning operations while changing the wavelength region of light to be read by the color measuring unit, and thus complete colorimetry of the patches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.