Printer jet detection method and apparatus
US7021732B2 · kind B2 · utility
20Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 12, 2003 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Jul 23, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J29/393
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method includes ejecting ink from a first set of one or more nozzles to form a first image pattern at least partially within an image field. The method likewise includes ejecting ink from a second set of one or more nozzles to form a second image pattern at least partially within the image field. The first image pattern and second image pattern form a composite pattern within the image field. Then, an optical detector obtains a measurement of an optical characteristic of the image field. The measurement may be compared with a reference optical characteristic for the composite pattern within the image field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.