Ink-jet recording head substrate, ink-jet recording head,...

Details Ink-jet recording head substrate, ink-jet recording head,... Ink-jet recording head substrate, ink-jet recording head,...

2006-11-14

2006-11-14

Meier, Stephen (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S057000, C347S012000

Reexamination Certificate

active

07134742

ABSTRACT:
A recording head substrate allowing an increased number of the exothermic bodies driven at a time without increasing the substrate size so as to increase a number of nozzles arranged in high density. The recording head substrate includes a plurality of electrothermal conversion members having exothermic bodies respectively corresponding to a plurality of discharge ports; a plurality of drive elements for driving the exothermic bodies; common wiring A connected to the exothermic bodies; and common wiring B connected to the drive elements; and an electrode pad connected to the common wiring A and the common wiring B. A number of the exothermic bodies driven at a time is determined by (RlineA+RlineB)/(Rh+Rd)<0.05/(0.95 n−1).

REFERENCES:
patent: 6234598 (2001-05-01), Torgerson et al.
patent: 6409315 (2002-06-01), Komuro
patent: 2001/0052916 (2001-12-01), Komuro
patent: 2002/0036781 (2002-03-01), Hirayama
patent: 2002/0145639 (2002-10-01), Masuda et al.
patent: 3-292160 (1991-12-01), None

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