Print verification system that reports defective printheads
US10545844B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 2017 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Feb 13, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/0733
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods are provided for print verification that reports defective printheads. One embodiment is a Print Verification System (PVS) that includes an interface to receive print data, and an imaging device to obtain image data of printed output of the print data. The PVS also includes a processor to detect a print error on a page by comparing the print data and the image data. The processor determines a lateral distance of a location of the print error with respect to an edge of the page, identifies a print engine that printed the page, determines a lateral offset of the print engine with respect to the edge of the page, identifies a printhead among a plurality of printheads of the print engine that caused the print error based on the lateral distance of the print error and the lateral offset of the print engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.