Patent ID: 7419253
Filing Date: 2008-09-02
Classification: B41J

Abstract:
1. A fluid flow channel, comprising: a first run for generally vertical fluid flow, the first run having a non-circular cross section characterized by a first smaller part into which substantially all bubbles in the ink cannot enter and a second larger part through which substantially all bubbles may enter and pass; a second run for generally horizontal fluid flow, the second run connected to and positioned downstream from the first run such that fluid can flow from the first run to the second run, the second run having opposing sidewalls, a floor extending between the sidewalls, and a ceiling extending between the sidewalls, the ceiling sloping upward in an upstream direction or the sidewalls tapering in toward one another in a downstream direction, or both; and a third run for generally vertical fluid flow, the third run connected to and positioned downstream from the second run such that fluid can flow from the second run to the third run, the third run having opposing sidewalls and a ceiling extending between the sidewalls, the ceiling sloping upward in an upstream direction.