| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid drop ejector configured to prevent an adverse effect due to the presence of bubbles on the nozzle side by preventing the entry of bubbles to the nozzle side.SOLUTION: The liquid drop ejector includes a liquid drop ejection head 24 in which a plurality of liquid drop ejection nozzles 201 are juxtaposed in a vertical direction or inclining with respect to the vertical direction to eject liquid drops in a horizontal direction or in a direction inclining with respect to the horizontal direction, and liquid is supplied from a common liquid chamber to individual liquid chambers to eject liquid drops from the liquid drop ejection nozzles. The liquid drop ejection nozzle 201 has a passage 211 inclining downward so that the nozzle opening surface 211A side is lower than the common liquid chamber 203 side, and an air vent nozzle 300 with a passage 301 inclining upward so that the nozzle opening surface 211A side is higher than the common liquid chamber 203 side to discharge bubbles to the outside is provided above the liquid drop ejection nozzle in the uppermost position. |
