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:
Jan. 27, 2015

Filed:

Dec. 09, 2013
Applicants:

Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;

Toshiba Tec Kabushiki Kaisha, Shinagawa-ku, Tokyo, JP;

Inventors:

Shunichi Ono, Shizuoka-ken, JP;

Teruyuki Hiyoshi, Shizuoka-ken, JP;

Mamoru Kimura;

Noboru Nitta, Shizuoka-ken, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 29/38 (2006.01); B41J 2/045 (2006.01);
U.S. Cl.
CPC ...
B41J 2/04541 (2013.01); B41J 2/04573 (2013.01); B41J 2/04581 (2013.01); B41J 2/04596 (2013.01); B41J 2202/10 (2013.01);
Abstract

According to one embodiment, a driving device applies an ejection pulse signal that deforms a partition in such a way that an ink drop is ejected from a nozzle and an auxiliary pulse signal that deforms the partition to such an extent that an ink drop is not ejected from the nozzle, as a drive signal for providing a potential difference between electrodes, to an inkjet head at different timings so that the two pulse signals are not applied simultaneously. A constraint on output of the auxiliary pulse signal is significantly relaxed.


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