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:
Dec. 28, 1999
Filed:
Feb. 20, 1998
Akira Kashimura, Hitachinaka, JP;
Norimass Kondo, Hitachinaka, JP;
Hitachi Koki Co., Ltd., Tokyo, JP;
Abstract
In the ink jet printer using hot melt ink, a heater is provided for overheating hot melt ink in the ink supply channel. The collector is provided for collecting air bubbles generated when the hot melt ink is overheated by the heater. The air bubbles, collected in the collector, are then expelled from the release valve. The hot melt ink is subsequently cooled before the ink enters the print head section, where the air is dissolved in the ink. The above-described air bubble-releasing and -dissolving processes are repeatedly performed as the ink is circulated due to the maintained difference in ink level between the ink supply chamber and the ink collecting chamber.