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. 04, 1990
Filed:
Sep. 02, 1988
Applicant:
Inventors:
Kenji Akami, Kawasaki, JP;
Gen Oda, Ebina, JP;
Toshiyuki Iwasawa, Tama, JP;
Masayoshi Miura, Kawasaki, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
3461 / ;
Abstract
An ink nozzle plate has ink discharge channels for discharging ink, and an air nozzle plate has air discharge channels facing the ink discharge channels for discharging air to jet the ink. A power source produces an electric field through the ink at the ink discharge channels, thereby extending the ink meniscus, and the ink is jetted from the air discharge channels by air-flow and the electric field. A heating means increases the temperature of the air nozzle plate, thereby vaporizing water adsorbed in the air discharge channels and stabilizing the ink jet volume.