Method of estimating an amount of available ink contained in an ink reservoir
US6871926B2 · kind B2 · utility
22Cited by
27References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2003 |
| Grant date | Mar 29, 2005 |
| Priority date | — |
| Expiry date | Apr 18, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/17589
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of estimating an amount of ink contained in an ink reservoir includes the steps of determining a cumulative actual ink drop count of ink drops expelled from the ink reservoir; and determining an evaporation amount associated with the ink reservoir, wherein before a time threshold the evaporation amount is ignored, and upon reaching the time threshold the evaporation amount is used to compensate for an evaporation loss for the ink reservoir by adjusting the cumulative actual ink drop count to form an evaporation compensated drop count.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.