Patent ID: 9259753
Filing Date: 2016-02-16
CPC Classification: B41J,F17D,Y10T

Claim Text:
1. A flow channel member comprising: a liquid flow channel having in at least part thereof a horizontal flow channel configured to cause liquid supplied from a liquid supply source in the horizontal direction; a valve disposed in the liquid flow channel and configured to open and close the liquid flow channel; a pressurizing unit configured to apply a pressurizing force to the liquid in the liquid flow channel; and an air bubble trap provided in a middle portion of the horizontal flow channel for storing an air bubble, wherein the air bubble trap has a vertical dimension that is less than a horizontal dimension, and includes a substantially flat air-bubble permeable wall formed of an air-bubble permeable member configured to allow permeation of the air bubble therethrough in at least a ceiling portion of the air bubble trap and a substantially flat wall in a bottom portion of the air bubble trap to cause the air bubble entering the air bubble trap to be partially flattened and to be pressed against the air-bubble permeable wall so as to bring the air bubble into surface contact with the air-bubble permeable wall, wherein the horizontal flow path has an upper portion extending from the ceiling portion on a downstream side of the air bubble trap and tapering downward in a downstream direction.