Patent ID: 7963635
Filing Date: 2011-06-21
Classification: B41J

Abstract:
1. An inkjet print head which ejects ink supplied from an ink supply port through a plurality of ejection ports respectively connecting to ink paths having different flow resistances by using energy generated by a plurality of electrothermal transducer elements respectively corresponding to the plurality of the ejection ports, wherein each of the plurality of the ejection ports connected to the ink paths having a low ink flow resistance is arranged so that a distance from the center of each of the plurality of the ejection ports in a direction away from the ink supply port to the center of the corresponding electrothermal transducer element is greater than that of each of the plurality of the ejection ports connected to the ink paths having a high ink flow resistance and corresponding electrothermal transducer elements, and when the flow resistance of the ink path is 0.03 (P·Pa·s/m