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AssigneeCanon Kabushiki Kaisha
InventorsShuichi Murakami, Hiroshi Tajika, Michinari Mizutani, Norihiro Kawatoko
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In an liquid ejection head according to the present invention having a plurality of ejection openings arranged in a predetermined direction and a plurality of electro-thermal transducers for ejecting liquid from the ejection openings and being in relative motion with a printing medium, a kinetic energy of the liquid ejected from each ejection opening constituting an end group disposed in the respective opposite end section along the predetermined direction is larger than a kinetic energy of the liquid ejected from each ejection opening constituting a central group disposed in a central section along the predetermined direction. According to the present invention, it is possible to prevent an ink droplet ejected from the ejection opening in the end group from being deviated toward the central section along the predetermined direction, whereby the generation of white streaks is avoidable when a solid printing is carried out.
A method for ejecting liquid with a relative motion between a liquid ejection head and a printing medium, the liquid ejection head having a plurality of ejection openings arranged in a predetermined direction and a plurality of ejection energy generating elements for ejecting liquid from the ejection openings,
Dependencies are inferred from the claim text.