Ink jet head and ink jet recording apparatus

Details Ink jet head and ink jet recording apparatus Ink jet head and ink jet recording apparatus

B - Operations, Transporting

41

J

B41J 2/045 (2006.01) B41J 2/17 (2006.01)

Patent

CA 2387290

There are provided an ink jet head and an ink jet recording apparatus having a judging unit for making a judgment with ease on an ink filling state of a printing head without consuming any ink and recording medium that are used for verification. A controlling means 500 controls a selection means 300 to drive one of side walls adjacently disposed in ink passages provided on a head chip 200 and obtains a piezoelectric signal generated on the other one of the side walls from a signal processing means 400, to thereby judge the ink filling state in the ink passage.

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