| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly stable ink jet printing head for mist deposited on the nozzle surface. SOLUTION: The ink jet printing device has two or more nozzles to discharge ink; ink path linked to the nozzles; a discharging pressure generation element formed inside the ink path; and a set of common liquid chamber to supply ink to the ink path. Also, grooves are provided near the nozzles on the nozzle surface so that the grooves are linked with the common liquid chamber. COPYRIGHT: (C)2005,JPO&NCIPI
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