Sony Corporation

Takekatsu Matsumoto

Masayuki Sato

Takashi Aihara

Tohru Naganuma

Toru Nanbara

In a driving method including a print head, it is possible to form surely dot of accurate concentration and to execute certain mixing and discharge actuation. There is disclosed a driving method of a printer driving apparatus including a print head including a first pressure room into which a quantitative medium is introduced, a second pressure room into which a discharge medium is introduced, a first nozzle communicated with the first pressure room and a second nozzle communicated with the second pressure room formed wherein they are penetrated through a plate matter and opening parts of both nozzles are side by side, a first pressure applying means for pushing out the medium of the fixed quantity by applying pressure to the quantitative medium in the first pressure room and a second pressure applying means for discharge the discharge medium by applying pressure to the discharge medium in the second pressure room, the driving method characterized by including a process for making the first pressure applying means execute pushing out actuation from a stationary state and for making the medium of the fixed quantity leak out from the first nozzle to the opening part of the second nozzle on the plate matter and a process for making the second pressure applying means execute discharge actuation from the stationary state and for discharge the quantitative medium and the discharge medium by making the discharge medium discharge from a opening part of the second nozzle, and characterized by finishing the discharge actuation of the second pressure applying means after the pushing out actuation of the first pressure applying means.

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Kanagawa, Japan

Takekatsu Matsumoto