Gas assisted ink jet apparatus and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 25, 1998
Grant Date -
N/A
app pub date -
Feb 28, 1996
filing date -
Feb 28, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A gas assisted liquid jet apparatus, suitable for use in ink jet printers, includes a transducer housing having a plurality of ink passages and is designed to be used with solid or hot melt ink. The apparatus operates with a compressed air source to provide a laminar air flow through an orifice from where ink is ejected. As a result, ink ligaments and droplets uniformly accelerate toward the printing medium, and the high speed laminar flow reduces friction at the orifice, thus reducing the formation of ink ligaments or satellite droplets. The apparatus may be made by attaching different layered members together. This improves the efficiency and ease of fabrication of multiple array liquid jet apparatus. Because of the layered structure, ink passages and air chambers each may be placed in a selected layered member or in more than one layered member. The location of the ink passages in the same layer or structure, such as the transducer housing, as a heater provides improved heating capabilities. The location of the ink passages in the transducer housing also minimizes the overall width of the apparatus.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully