Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kouichi Sameshima0
Date of Patent
October 8, 2019
0Patent Application Number
160735960
Date Filed
January 11, 2017
0Patent Citations Received
Patent Primary Examiner
Patent abstract
When a diameter of a hole at an exit of a nozzle is expressed as D (μm) and a distance between a position in a circulation flow path part on a side thereof closest to the exit and the exit is expressed as N (μm) in an ink jet driving apparatus, N≤3.47D is satisfied. During non-ejection, a driving control unit generates a driving signal for withdrawing ink from the exit of the nozzle to a side of a pressure chamber through a distance of 0.16N or more and 0.555D or less, and for causing the ink meniscus to oscillate, and applies the driving signal to a driving element.
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