| 摘要 |
PROBLEM TO BE SOLVED: To enable a resistance to be increased without widening the space for a heating element even in a short pulse width which is limited by a high frequency driving, to enable a high discharging energy to be obtained, and also, to enable various ink droplets to be discharged by a high frequency from nozzles being accumulated with a high density. SOLUTION: For this inkjet printing head, the direction of an electric current, which flows between an individual electrode 1 being arranged to be confronted with one heating element, and a common electrode 2, bends. A resistor layer 3 especially to one heating element is divided into two or more regions of which the resistance values per unit area are different to guide the electric current so as to be more easily bent. Thus, one heating element is made to have a high electric resistance as a whole. COPYRIGHT: (C)2007,JPO&INPIT
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