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.:
Date of Patent:
Nov. 09, 2010
Filed:
Apr. 01, 2008
Applicants:
Sang-il Kim, Suwon-si, KR;
Byeung-leul Lee, Yongin-si, KR;
Seog-soon Baek, Suwon-si, KR;
Inventors:
Assignee:
Samsung Electronics Co., Ltd, Suwon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 29/393 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided are a print head error checking apparatus and method in which the residual oscillation of a piezoelectric element corresponding to each nozzle of a print head is sensed, the sensed residual oscillation of each piezoelectric element and a predetermined residual oscillation of the piezoelectric element are compared to each other, and whether a print head normally operates is checked in consideration of the results of the comparisons.