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:
Feb. 05, 2013

Filed:

Jun. 22, 2009
Applicants:

Kazumasa Ito, Tajimi, JP;

Hirotaka Hayashi, Nagoya, JP;

Inventors:

Kazumasa Ito, Tajimi, JP;

Hirotaka Hayashi, Nagoya, JP;

Assignee:

Ricoh Elemex Corporation, Nagoya-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 29/393 (2006.01);
U.S. Cl.
CPC ...
Abstract

An ink-droplet detecting unit detects a spray state of an ink droplet sprayed from an ink-droplet spray head. The ink-droplet detecting unit includes a light-emitting element, a light-emitting element holder, a light-receiving element, a light-receiving element holder, and a base member. The light-emitting element holder is attached to the base member in a rotatable manner. The light-receiving element holder is attached to the base member in a slidable manner in a direction perpendicular to a rotation direction of the light-emitting element holder. The ink-droplet detecting unit is attached to a main body of the inkjet recording apparatus.


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