Plastic card printing systems with temperature and pixel density compensation
US11932010B2 · kind B2 · utility
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13References
20Claims
0Family size
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Key dates
| Filing date | Oct 28, 2021 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Oct 28, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/365
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Thermal printing on plastic cards where the energization of each individually energizable heating element of a thermal printhead is adjusted based on a temperature of the thermal printhead and a density of the pixel to be printed. For each pixel, the printhead temperature and the pixel density of a pixel to be printed are used to adjust the strobe pulse length that energizes the heating element to print that pixel. By compensating for both printhead temperature and pixel density, a tighter tolerance of the resulting printed densities is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.