Inline purge capability (purge while run) to improve system productivity during low area coverage runs
US7493057B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2006 |
| Grant date | Feb 17, 2009 |
| Priority date | — |
| Expiry date | Jun 7, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0844
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrostatic printing machine having a plurality of color stations having a system for maintaining a preset toner age in each of the plurality of color stations, including: determining a toner age for each of the plurality of color stations; determining if purge while run is required based on the toner age for each of the plurality of color stations; defining an area on a unused portion of an imaging frame for a purge patch, the defining includes sizing a plurality of purge patch regions wherein each of the purge patch regions may have a different size; allocating each of the plurality of purge patch regions to at least one color plane from a group of color separations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.