| 摘要 |
PROBLEM TO BE SOLVED: To provide a deflection device exhibiting a high defection efficiency through a simple structure. SOLUTION: In the print head for a continuous ink jet printer comprising means for generating and jetting an ink jet from a jet nozzle and separating the ink jet into a series of liquid drops, means for charging various liquid drops in the series of liquid drops selectively, and deflection electrodes (2, 3) for deflecting the liquid drop toward a collection gutter (6) or a print basic body supported on a print basic body support (13) depending on the quantity of charges of the liquid drop, active surface (11) of the first electrode (2) has a first recessed longitudinal bend, the first electrode has a recess (12) and the recess (12) has a boundary (38) at a downstream part (16).
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