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. 24, 2007

Filed:

Sep. 01, 2005
Applicants:

Jung-wook Kim, Yongin-si, KR;

Ki-won Seok, Suwon-si, KR;

Kyung-yol Yon, Seongnam-si, KR;

Deuck-woo Jang, Seongnam-si, KR;

Hae-ree Joo, Seoul, KR;

Min-young Cheong, Seoul, KR;

Inventors:

Jung-wook Kim, Yongin-si, KR;

Ki-won Seok, Suwon-si, KR;

Kyung-yol Yon, Seongnam-si, KR;

Deuck-woo Jang, Seongnam-si, KR;

Hae-ree Joo, Seoul, KR;

Min-young Cheong, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

A test apparatus to evaluate the electrical properties of a liquid toner in which a printing quality of the liquid toner may be predicted by evaluating the electrical properties of the liquid toner without performing printing. The test apparatus to evaluate the electrical properties of a liquid toner includes a roller, a conductive flat panel positioned below the roller to move a predetermined distance in contact with the roller, a power supply device applying a voltage to the roller and the conductive flat panel, and a voltage tester provided at the rear of the roller to move together with the roller, testing a voltage of the liquid toner arranged on the conductive flat panel.


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