Printhead and ink supply arrangement

Details Printhead and ink supply arrangement Printhead and ink supply arrangement

2006-07-04

2006-07-04

Stephens, Juanita D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S054000

Reexamination Certificate

active

07070258

ABSTRACT:
Microelectromechanical printheads are formed on a silicon wafer using etching technology similar that used in standard integrated circuit fabrication processes. The printheads include a very large number of micron-order ink inlet channels. A difficulty arises in accurately providing such a printhead with a reliable ink supply. The present invention addresses the above problem by providing an ink supply molding that includes a slot to receive the printhead. A plurality of ink supply passageways are formed in the ink supply molding of approximately 100 micron width. The ink supply molding is received into a baffle molding that includes ink conduits which in turn communicate with the ink supply passageway. In one embodiment a web of ink filtering material is disposed between the ink supply molding and the baffle molding.

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U.S. Appl. No. 09/835,472, filed Oct. 15, 1999, Silverbrook.
U.S. Appl. No. 09/807,297, filed Oct. 15, 1999, Silverbrook.

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