Digitally compensated pressure ink level sense system and method
US6648434B2 · kind B2 · utility
53Cited by
16References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2001 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | May 7, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17566
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printing system includes an inkjet printhead for selectively depositing ink drops on print media. An ink reservoir stores ink to be provided to the inkjet printhead. An ink level sensing circuit provides an ink level sense output that is indicative of a sensed volume of ink in the ink reservoir. A memory device stores sensor compensation information. A processor responsive to output of the memory device and the ink level sense output generates a compensated ink level sense output. The processor provides an estimate of available ink based on the compensated ink level sense output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.