Droplet ejection head and droplet ejection apparatus

Details Droplet ejection head and droplet ejection apparatus Droplet ejection head and droplet ejection apparatus

2008-11-04

2011-10-04

Rahll, Jerry T (Department: 2874)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

08029111

ABSTRACT:
A droplet ejection head comprises: a substrate having first through-holes forming reservoir chambers, a second through-hole forming a supply chamber, and a bonding film on one surface; a nozzle plate having nozzles for ejecting ejection liquid and one surface contacting the bonding film, the nozzle plate is bonded to the substrate through the bonding film to cover the first through-holes and the second through-hole; a sealing plate on another surface of the substrate covering the first through-holes, one surface of the sealing plate contacting the substrate's another surface; and piezoelectric means on another surface of the sealing plate for driving the droplet ejection head. The bonding film containing an Si-skeleton constituted of constituent atoms containing silicon atoms, with siloxane (Si—O) bonds and elimination groups bonded to the silicon atoms, the constituent atoms being randomly bonded together, and the elimination groups existing near a surface of the bonding film.

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