EP 2094494 A1 20090902 - INK PRESSURE REGULATOR
Title (en)
INK PRESSURE REGULATOR
Title (de)
TINTENDRUCKREGLER
Title (fr)
RÉGULATEUR DE PRESSION D'ENCRE
Publication
Application
Priority
AU 2006001908 W 20061218
Abstract (en)
[origin: WO2008074049A1] There is provided an ink pressure regulator for regulating a hydrostatic pressure of ink supplied to an inkjet printhead. The regulator comprises: an ink chamber having an ink outlet for fluid communication with the printhead via an ink line; an air inlet open to atmosphere; a bubble outlet for bubbling air bubbles into the chamber, each air bubble comprising an air cavity trapped inside a film or a body of ink; and an air channel connecting the air inlet and the bubble outlet. The bubble outlet is dimensioned to control a Laplace pressure of air bubbles drawn into the chamber as result of supplying ink to the printhead, thereby regulating a hydrostatic pressure of the ink.
IPC 8 full level
B41J 2/175 (2006.01)
CPC (source: EP)
B41J 2/17513 (2013.01); B41J 2/17556 (2013.01); B41J 2/19 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008074049 A1 20080626; EP 2094494 A1 20090902; EP 2094494 A4 20100203; EP 2094494 B1 20121212; TW 200827178 A 20080701; TW I398363 B 20130611
DOCDB simple family (application)
AU 2006001908 W 20061218; EP 06828019 A 20061218; TW 96107550 A 20070305