AIR REMOVAL AND INK SUPPLY SYSTEM FOR AN INKJET PRINTHEAD
First Claim
1. A microfluid ejection system, comprising:
- a fluid path having proximate and distal ends, the proximate end having an inlet to receive fluid from a fluid supply;
a vacuum chamber in fluid communication with the fluid path to allow suctioning of air from both the proximate and distal ends of the fluid path; and
a pre-ejection chamber disposed in the fluid path between the proximate end and the distal end including a ceiling inclined upward toward each of the proximate and distal ends from a low point to direct air toward either the proximate or distal end for suctioning from the pre-ejection chamber.
2 Assignments
0 Petitions
Accused Products
Abstract
A microfluid ejection system includes a fluid path having proximate and distal ends, the proximate end having an inlet to receive fluid from a fluid supply, a vacuum chamber for suctioning of air from both the proximate and distal ends of the fluid path, and a pre-ejection chamber disposed in the fluid path between a proximate end and a distal end. The pre-ejection chamber includes a ceiling inclined upward toward each of the proximate and distal ends from a low point to direct air toward either the proximate or distal end for suctioning from the pre-ejection chamber. The microfluid system further includes a first and second air chambers disposed respectively at the proximate and distal ends of the fluid path to receive and direct air to the vacuum chamber.
13 Citations
21 Claims
-
1. A microfluid ejection system, comprising:
-
a fluid path having proximate and distal ends, the proximate end having an inlet to receive fluid from a fluid supply; a vacuum chamber in fluid communication with the fluid path to allow suctioning of air from both the proximate and distal ends of the fluid path; and a pre-ejection chamber disposed in the fluid path between the proximate end and the distal end including a ceiling inclined upward toward each of the proximate and distal ends from a low point to direct air toward either the proximate or distal end for suctioning from the pre-ejection chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A microfluid ejection system, comprising:
-
a fluid path having proximate and distal ends, the proximate end having an inlet to receive fluid from a fluid supply; a vacuum chamber in fluid communication with the fluid path to allow suctioning of air from both the proximate and distal ends of the fluid path; a first air chamber disposed at the proximate end to receive air at the proximate end and direct the air to the vacuum chamber; a second air chamber disposed at the distal end to collect air at the distal end and direct the air toward the vacuum chamber; and a pre-ejection chamber disposed in the fluid path between the proximate end and the distal end, the pre-ejection chamber including, a fluid entry port disposed at a proximate side of the pre-ejection chamber below the first air chamber to receive fluid from the inlet; and a ceiling inclined upward toward each of the fluid entry port and the second air chamber from a low point to direct air toward either the first or second air chamber for suctioning from the pre-ejection chamber. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
Specification