Title:
FLUID LEVEL SENSING APPARATUS AND METHOD OF USING THE SAME FOR INKJET PRINTING SYSTEMS
Document Type and Number:
WIPO Patent Application WO/2014/045128
Kind Code:
A3
Abstract:
An inkjet printing system is disclosed and comprises at least one fluid reservoir containing a fluid, a fluid line that fluidly couples the at least one fluid reservoir with an imaging device, and a fluid level sensing apparatus fluidly coupled with the at least one fluid reservoir. The fluid level sensing apparatus comprises: a bottom portion having a fluid volume VB; an intermediate portion vertically adjacent the bottom portion and having a fluid volume VI, the intermediate portion including a first fluid sensor spaced vertically from a second fluid sensor; and an upper portion vertically adjacent the intermediate portion and having a fluid volume VU, wherein VU >VI > VB. The inkjet printing system also comprises a pump fluidly coupled with the at least one fluid level sensing apparatus and configured to exert fluid pressure along the at least one fluid level sensing apparatus.
Inventors:
MUYSKENS ROBERT H (US)
MARRA MICHAEL A (US)
MARRA MICHAEL A (US)
Application Number:
PCT/IB2013/002820
Publication Date:
June 26, 2014
Filing Date:
September 24, 2013
Export Citation:
Assignee:
FUNAI ELECTRIC CO (JP)
International Classes:
B41J2/175
Domestic Patent References:
| WO1998030394A1 | 1998-07-16 | |||
| WO2005002860A1 | 2005-01-13 | |||
| WO2010118225A1 | 2010-10-14 |
Foreign References:
| US20100238239A1 | 2010-09-23 | |||
| EP2110250A1 | 2009-10-21 | |||
| US20110279495A1 | 2011-11-17 | |||
| EP1164025A1 | 2001-12-19 | |||
| US20030128256A1 | 2003-07-10 | |||
| EP2103435A2 | 2009-09-23 |
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