Ink jet print head substrate and ink jet print head

Details Ink jet print head substrate and ink jet print head Ink jet print head substrate and ink jet print head

2011-02-14

2011-12-13

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

08075103

ABSTRACT:
An ink jet print head substrate is provided which can prevent voltage drop variations during driving, no matter in what way the ejection energy generation elements are driven, and which can also apply a stable energy to the ejection energy generation elements at all times. The ink jet print head substrate of this invention has a plurality of kinds of ejection energy generation elements to generate different magnitudes of ink ejection energy and wiring portions. The print head substrate also has a plurality of wiring layers arranged to at least partly overlap one another. The wiring portions connected to the different kinds of ejection energy generation elements are provided at least partly in different wiring portions.

REFERENCES:
patent: 6439690 (2002-08-01), Ishinaga et al.
patent: 6474789 (2002-11-01), Ishinaga et al.

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