Liquid discharging head, liquid discharging apparatus, and bubble removing method for the liquid discharging apparatus

A liquid discharging head includes a head chip including a plurality of energy generating elements configured to discharge liquid, and liquid chambers provided around the energy generating elements, and a common passage member configured to define a common passage communicating with all the liquid c...

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Bibliographic Details
Main Author Hirashima, Shigeyoshi
Format Patent
LanguageEnglish
Published 24.01.2012
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Summary:A liquid discharging head includes a head chip including a plurality of energy generating elements configured to discharge liquid, and liquid chambers provided around the energy generating elements, and a common passage member configured to define a common passage communicating with all the liquid chambers. Liquid is discharged from the liquid chambers by driving the energy generating elements so as to apply a discharging force to the liquid. N-number of common passage members (N≧2) are provided, and each includes an inlet for supplying the liquid to the common passage and an outlet for ejecting the liquid from the common passage. The inlet of the first common passage member is connected to a liquid supply member. The inlet of the N-th common passage member is connected to the liquid supply member via an opening-closing valve and to the outlet of the (N−1)-th common passage member.