The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 28, 2012
Filed:
May. 05, 2008
Jiro Moriyama, Kawasaki, JP;
Hidehiko Kanda, Yokohama, JP;
Atsuhiko Masuyama, Yokohama, JP;
Masahiko Umezawa, Kawasaki, JP;
Hideaki Takamiya, Yokohama, JP;
Jiro Moriyama, Kawasaki, JP;
Hidehiko Kanda, Yokohama, JP;
Atsuhiko Masuyama, Yokohama, JP;
Masahiko Umezawa, Kawasaki, JP;
Hideaki Takamiya, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
To achieve high-quality printing by controlling an ink-travelling direction by an electrostatic force so that the ink can be accurately applied on a printing medium, the ink is landed on a desired position of the printing medium effectively without disturbing the ink ejection, independent of a difference in the thickness of the printing medium. An electric field between a printing head and the printing medium is generated by applying a voltage to a platen of conductive material positioned immediately below the printing medium. At this point, the voltage applied to the platen is adjusted so that the electric field of a preferable intensity can be generated on a face of the printing head where ejection openings are formed irrespective of the thickness of the printing medium.