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 7510257 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 31, 2009

Filed:

Aug. 02, 2006
Applicants:

Dong-kee Jung, Seoul, KR;

Jung-hwan Kim, Seoul, KR;

Inventors:

Dong-kee Jung, Seoul, KR;

Jung-hwan Kim, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/195 (2006.01); B41J 29/393 (2006.01); B41J 2/175 (2006.01);
U.S. Cl.
CPC ...
Abstract

An ink level detecting device also functions as a cover opening sensor, and an ink-jet image forming apparatus having the ink level detecting device functions in the same way. The ink level detecting device detects an ink level in an ink container mounted on an ink container mounting unit, and includes a first electrode disposed on an inner surface of a cover which covers the ink container mounting unit and a second electrode disposed on the ink container. The ink level detecting device detects an opening of the cover as well as an ink level variation by sensing a variation in a capacitance between the first and second electrodes.


Find Patent Forward Citations

Jung, Dong-kee. (2009). Ink level detecting device functioning as cover opening sensor and ink-jet image forming apparatus having the same (U.S. Patent No. 7510257). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7510257

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

Loading…