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. 05, 1999
Filed:
Feb. 14, 1997
Applicant:
Inventors:
Kazuyuki Oda, Ebina, JP;
Katsuyuki Fujii, Ebina, JP;
Assignee:
Fuji Xerox Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
347 85 ; 347 86 ;
Abstract
An ink supply device for supplying ink to a print head, the device containing a main ink chamber, an intermediate ink chamber, a first meniscus forming member with pores between the main and intermediate ink chambers and a joint portion between the first meniscus forming member and the print head. The ink supply device holds ink by negative pressure maintained therein and extends the efficiency of the ink supply device. Preferably, the intermediate ink chamber is hermetically sealed.