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:
Mar. 11, 1997
Filed:
May. 19, 1994
Applicant:
Inventors:
Michinori Kutami, Kawaguchi, JP;
Akira Nakazawa, Isehara, JP;
Hideyuki Kikuchi, Zama, JP;
Katsunori Yamagishi, Atsugi, JP;
Assignee:
Fujitsu, Ltd., Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
347 54 ; 347 70 ;
Abstract
In a printing head which makes an ink jet system printing and includes a pressure chamber supplied with an ink, a nozzle which communicates to the pressure chamber, a vibration plate which forms one wall of the pressure chamber; and pressure applying mechanism for applying pressure to the vibration plate so as to eject the ink from the nozzle, the pressure applying mechanism includes a wire for applying the pressure on the vibration plate, and a driving part for displacing the wire. At least the pressure chamber is detachably mounted with respect to the pressure applying mechanism.