Ink jet recording head and method of manufacturing the same

Details Ink jet recording head and method of manufacturing the same Ink jet recording head and method of manufacturing the same

2007-09-24

2010-11-09

Le, Uyen-Chau N (Department: 2874)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S065000, C216S027000

Reexamination Certificate

active

07828419

ABSTRACT:
An ink jet recording head includes a substrate having a plurality of energy-generating elements that generate energy for discharging ink droplets and an ink supply port extending in a direction in which the energy-generating elements are arranged, a plurality of discharge ports that are provided correspondingly to the energy-generating elements, a discharge-port-forming member provided on the substrate and including a plurality of ink passages that include the energy-generating elements and connect the supply port and each of the discharge ports, and a rib provided on a surface of the discharge-port-forming member opposite the supply port and extending in a direction in which the energy-generating elements are arranged. A surface of the rib opposite the supply port has a protective layer.

REFERENCES:
patent: 6137510 (2000-10-01), Sato et al.
patent: 6540335 (2003-04-01), Touge et al.
patent: 7066581 (2006-06-01), Conta et al.

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