Fine detail photoresist barrier

Incremental printing of symbolic information – Ink jet – Ejector mechanism

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347 65, B41J 205

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active

06161923&

ABSTRACT:
The photoresist barrier layer of an inkjet printer printhead is processed to enable channels narrower than a predetermined width in the barrier layer to be created without blockage. Relatively large volumes of photoresist which form a wall of the channel are exposed to a partial exposure of electomagnetic radiation to yield a reduced concentration of photoresist barrier layer in the large volume.

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