Expansion relief for orifice plate of thermal ink jet print head

Details Expansion relief for orifice plate of thermal ink jet print head Expansion relief for orifice plate of thermal ink jet print head

1997-07-28

1998-12-08

Lund, Valerie

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 47, 347 45, 428913, 427261, B41J 216

Patent

active

058477250

ABSTRACT:
A thermal ink jet print head with an orifice plate for defining numerous of orifice apertures and numerous strain relief elements. Each strain relief element is a closed slit between abutting and separable portions of the plate, such that a stress applied to the plate across the strain relief element will tend to open the slot, or cause the edges to move in a direction perpendicular to the plane of the plate, or otherwise provide a thin cross section that deforms more easily, thereby limiting strain in other portions of the plate.

REFERENCES:
patent: 4994825 (1991-02-01), Saito et al.
patent: 5069978 (1991-12-01), Mizuhara
patent: 5167776 (1992-12-01), Bhaskar et al.
patent: 5194877 (1993-03-01), Lam et al.
patent: 5230459 (1993-07-01), Mueller et al.
patent: 5443713 (1995-08-01), Hindman
patent: 5560837 (1996-10-01), Trueba

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