System and method for pressure control of an ink delivery system
US8529038B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2011 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Mar 5, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17593
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A pressurized ink delivery system having two delivery reservoirs in an inkjet printer enables a control system to alternate between the two reservoirs for printhead supply without coupling pressurized air from a delivery reservoir to a low pressure source of ink. Each delivery reservoir includes a conduit having an orifice that enables the pressure within a delivery reservoir to exit the reservoir before the ink delivery reservoir is fluidly connected to the low pressure source of ink for refilling of the delivery reservoir. By dropping the high pressure reservoir to atmosphere and then switching the seal actuators for the two reservoirs, the spray of ink is avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.