| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a flow channel member capable of reducing the number of cleaning operation times as much as possible, and capable of discharging air bubble mixed into a liquid flow channel of the flow channel member with a simple composition for preventing generation of troubles caused by mixing of the air bubble. <P>SOLUTION: The flow channel member 30 includes: an ink flow channel 300 having a horizontal flow channel 320 for horizontally circulating ink supplied from an ink cartridge in at least a part of itself; a self-sealing valve 36 disposed on the downstream side of the ink flow channel 300 and configured to open and close the ink flow channel 300; a pressurizing means configured to apply a pressurizing force to the ink in the ink flow channel 300 from the upstream side; and an air bubble trap 303 provided in the middle of the horizontal flow channel 320 for storing an air bubble 500. The air bubble trap 303 includes an air-bubble permeable wall 32A formed of an air-bubble permeable member configured to allow permeation of the air bubble to the outside at least on the ceiling part, and is configured to cause the air bubble 500 coming into abutment with the air-bubble permeable wall 32A to be a flat shape and to be pressed against the air-bubble permeable wall 32A so as to bring the air bubble into surface contact with the air-bubble permeable wall 32A. <P>COPYRIGHT: (C)2013,JPO&INPIT |
