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IMPROVED DESIGNS TO PREVENT AIR INGESTION OF A THERMAL INK JET PRINTHEAD

IP.com Disclosure Number: IPCOM000027427D
Original Publication Date: 1996-Dec-31
Included in the Prior Art Database: 2004-Apr-07

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed are five channel design modifications for a thermal ink jet printhead that prevents air ingestion by addressing the problem of the meniscus shape during refill. As used in this description, "air ingestion" refers to air being sucked in from the front of a printhead and becoming trapped on a heater surface to prevent drops from being fired.