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CAPILLARY FOAM THERMAL INK JET INK SUPPLY

IP.com Disclosure Number: IPCOM000027276D
Original Publication Date: 1996-Feb-29
Included in the Prior Art Database: 2004-Apr-07

Publishing Venue

Xerox Disclosure Journal

Abstract

Proposed is the use of on board capillary foamdfelts as a secondary supply in rapid scan ink jet print heads. The proposed capillary materials address two problems associated with scanning print heads. Firstly, they maintain a constant negative pressure so as to prevent nozzle weeping. Secondly, they provide a buffer which dampens the effect of large accelerations encountered in a rapid scan architecture. To minimize the mass to be scanned, the capillary materials contain a partial supply of ink which is resupplied from a larger ink reservoir in the printer. This further minimizes printer maintenance performed by the user.