Ink delivery system for acoustic ink printing applications
US6523944B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1999 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Jun 30, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/14008
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink delivery system for acoustic ink printheads is provided. The relatively compact sealless system provides a high speed, pulseless and uniform flows of ink through the acoustic ink printheads. The system includes a single motor, a multi-head pump, multiple ink reservoirs with ink filters, and ink level sensing means. The system also includes a mechanism for maintaining ink pressure in the printhead independent of the volume of ink in the reservoir, the amount of filter blockage, or the absolute ambient pressure. As an option, the system also includes a segmented manifold for the printhead to deliver, for example, multiple colors of ink to a single printhead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.