Method and apparatus for detecting ink level
US6247775A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1998 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Oct 30, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17566
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present disclosure relates to an inkjet printing system for depositing ink on media. The inkjet printing system includes an ink containment vessel formed from a material having optical characteristics selected to block light in the visible light spectrum. Also included is an energy source for providing energy having characteristics that are selected to allow energy passage through the ink containment vessel. Finally, an energy detector is included for detecting energy provided by the energy source that passes through the ink containment vessel. Energy from the energy source impinging upon ink is altered so that an energy detector output signal is indicative of ink within of the ink containment vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.