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.

Date of Patent:
Jul. 19, 2011

Filed:

May. 05, 2008
Applicants:

Masahiko Umezawa, Kawasaki, JP;

Jiro Moriyama, Kawasaki, JP;

Hidehiko Kanda, Yokohama, JP;

Atsuhiko Masuyama, Yokohama, JP;

Hideaki Takamiya, Yokohama, JP;

Inventors:

Masahiko Umezawa, Kawasaki, JP;

Jiro Moriyama, Kawasaki, JP;

Hidehiko Kanda, Yokohama, JP;

Atsuhiko Masuyama, Yokohama, JP;

Hideaki Takamiya, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

To achieve high-quality printing by controlling an ink-traveling direction by an electrostatic force so that the ink can be accurately applied on a printing medium, the ink ejected to areas outside edges of the printing medium is prevented from being attracted to the end portions in margin-less printing. This configuration includes: a platen, made of a conductive material, positioned immediately below the printing medium; an absorber positioned at a side of the edge; and a mesh conductive member disposed on the absorber. A first voltage is applied to the platen, causing polarization in the printing medium, and a second voltage higher than the first voltage is applied to the conductive member. Thereby, ink ejected outside the edges in the margin-less printing, travels straight-forwardly toward the conductive member without being attracted to the end portions, and is absorbed into the absorber via the conductive member.


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