Imaging apparatus and method of using colorant density for reducing printing defects
US9757955B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2015 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Dec 9, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for reducing printing defects in inkjet printing includes determining a respective colorant density for each colorant of a plurality of colorants for a region to be printed; determining a colorant dry-time signal strength as a function of a combined colorant density value based on the respective colorant densities of the plurality of colorants for the region to be printed; determining a respective colorant swath contraction strength for each colorant as a function of the respective colorant density; selecting a dry-time threshold which if met by the colorant dry-time signal strength indicates that a dry-time defect may occur; selecting a respective colorant density threshold for each colorant which if met by the respective colorant density indicates a visible swath contraction may occur; and determining a printing action to be taken based on whether the dry-time threshold is met and whether at least one respective colorant density threshold is met.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.