Ink jet printhead with built in filter structure

Details Ink jet printhead with built in filter structure Ink jet printhead with built in filter structure

1994-03-31

1998-04-21

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

347 69, 205 68, B41J 2175

Patent

active

057423148

ABSTRACT:
An ink jet printhead body has an ink filter structure integrally incorporated therein and operative to filter ink flowing into its internal ink receiving channels disposed between piezoelectrically deflectable interior wall portions of the body. In various illustrated embodiments of the printhead, the filter structure is defined by a series of photoetched micro filter passageways formed integrally in an outer side portion of the printhead body, a filter cavity formed in the outer side portion and receiving a separate photoetchable filter member in which photoetched micro filter passageways are formed, and a filter cavity formed in the outer side portion and receiving a separate mesh-type micro filter member. In an embodiment of the printhead adapted for use with phase change type ink, a heating channel is interiorly disposed within the outer body side portion and operatively receives an electrical resistance heating wire used to heat phase change type ink disposed within the ink receiving channels in the printhead body.

REFERENCES:
patent: 4380770 (1983-04-01), Maruyama
patent: 4514743 (1985-04-01), Roschlein et al.
patent: 4887100 (1989-12-01), Michaelis et al.
patent: 5105209 (1992-04-01), Koto et al.
patent: 5154815 (1992-10-01), O'Neill
patent: 5204690 (1993-04-01), Lorenze, Jr. et al.
patent: 5227813 (1993-07-01), Pies et al.
patent: 5234594 (1993-08-01), Tonucci et al.
patent: 5446484 (1995-08-01), Hoisington et al.
patent: 5465108 (1995-11-01), Fujimoto

Affiliated with

Also associated with

Rating

Ink jet printhead with built in filter structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ink jet printhead with built in filter structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ink jet printhead with built in filter structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2062733