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:
Jan. 01, 2013
Filed:
Jun. 03, 2008
Jae Yun Lee, Seoul, KR;
Jin Ho Park, Yongin-si, KR;
Sung Wook Kang, Seoul, KR;
Young Su Lee, Suwon-si, KR;
IN Su Lee, Suwon-si, KR;
IL Ju Mun, Suwon-si, KR;
Jae Yun Lee, Seoul, KR;
Jin Ho Park, Yongin-si, KR;
Sung Wook Kang, Seoul, KR;
Young Su Lee, Suwon-si, KR;
In Su Lee, Suwon-si, KR;
Il Ju Mun, Suwon-si, KR;
SAMSUNG Electronics Co., Ltd., Suwon-si, KR;
Abstract
An ink-jet image forming apparatus. The ink-jet image forming apparatus includes a print head having a plurality of nozzles to eject ink, an ink tank to store the ink, an ink supply passage to supply the ink in the ink tank to the print head, an ink return passage to return the ink in the print head to the ink tank, a regulator mounted in the ink supply passage to regulate ink flow supplied to the print head, a shut-off valve mounted in the ink supply passage, between the ink tank and the regulator, to intercept ink flow supplied to the regulator, and an ink pump mounted in the ink return passage to forcedly flow the ink in the ink return passage. The ink pump is configured to be driven in forward and reverse directions so as to change an ink flow direction. Since the shut-off valve intercepts forcedly the ink flow in the ink supply passage, the ink in the ink tank is prevented from flowing abnormally to the print head and leaking from the print head.