Back pressure control in inkjet printing
US7467858B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2005 |
| Grant date | Dec 23, 2008 |
| Priority date | — |
| Expiry date | Apr 27, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/16502
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of inkjet printing includes establishing a back pressure corresponding to a desired print mode in a printhead and changing the back pressure in response to changes in print mode. A printing system for printing in a number of distinct print modes includes an inkjet pen having a printhead and a back pressure control unit having multiple back pressure settings. The back pressure is set to a first value when the printing system is operating in a first print mode to a second value when the printing system is operating in a second print mode. In another embodiment, the printing system includes structure for controlling meniscus condition in the printhead nozzles by selectively changing back pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.