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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.:

US 8654161 B1

PDFFull Text
Expired
Date of Patent:
Feb. 18, 2014

Filed:

Jan. 21, 2011

Head element operation check mechanism, head element operation check method, and head element number check method

Applicant:

Atsuyuki Imaizumi, Shiojiri, JP;

Inventor:

Atsuyuki Imaizumi, Shiojiri, JP;

Assignee:

Seiko Epson Corporation, Tokyo, JP;

Attorneys:

Nutter McClennen & Fish LLP

John J. Penny, Jr.

Christina M. Sperry

Primary Examiner:

Kristal Feggins

Int. Cl.
CPC ...
B41J 2/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A head element operation check mechanism in a printer which is provided with a head including a plurality of head elements is provided. A controller controls a selector to selectively and electrically connect a resistor element provided in each of the head elements to a test resistor element in series. A test power source applies a test voltage to a serial circuit of the test resistor element and the resistor element. A divided voltage measuring unit measures a divided voltage of the serial circuit of the test resister element and the resistor element in response to control of the controller.

Find Patent Forward Citations

Imaizumi, Atsuyuki. (2014). Head element operation check mechanism, head element operation check method, and head element number check method (U.S. Patent No. 8654161). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8654161

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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