Ink jet print head having two cured photoimaged barrier layers

Details Ink jet print head having two cured photoimaged barrier layers Ink jet print head having two cured photoimaged barrier layers

1991-04-02

1993-03-30

Hartary, Joseph W.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

346140R, B41J 205

Patent

active

051988348

ABSTRACT:
A pen head (14) for a drop-on-demand ink jet pen is disclosed along with its method of manufacture. The pen head utilizes a barrier wall (24) located between a substrate (20) and an orifice plate (22). Ink (17) flows through the pen head in channels defined in the barrier wall. The barrier wall is fabricated in two layers (58,60) from cured, photoimaged resist materials. One layer (58) is a soldermask material; and the other (60), a photolithographic resist material. The two layers together resist chemical attack by the inks and mechanical separation of the orifice plate (22) from the pen head.

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