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:
Apr. 15, 2003
Filed:
Jan. 29, 2002
Applicant:
Inventors:
Hsun-Hsien Chan, Chu-Pei, TW;
Chih-Ching Chen, Taipei, TW;
Assignee:
BenQ Corporation, Taoyuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/19 ;
U.S. Cl.
CPC ...
B41J 2/19 ;
Abstract
A head cartridge with a bubble chamber has an ink reservoir, a print head, and an ink channel. The ink reservoir stores ink. The print head has a plurality of heaters for generating bubbles, so that ink is jetted from the print head by the bubbles. The ink channel is installed below the ink reservoir for transmitting ink into the print head from the ink reservoir, and the ink channel has a bubble chamber for collecting residual bubbles to increase an efficiency of the fluid in flowing from the ink reservoir to the ink pipe.