Printhead substrate having electrothermal transducers...

Details Printhead substrate having electrothermal transducers... Printhead substrate having electrothermal transducers...

2011-03-15

2011-03-15

Stephens, Juanita D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S058000

Reexamination Certificate

active

07905577

ABSTRACT:
Plural electrothermal transducers (heaters) belonging to each of blocks having different driving timings are constituted as one group and are connected to a common interconnecting wiring in units of one group. Plural lines are connected to the common wiring such that the plural lines are extended to return with respect to the heaters and are each arranged to extend in an adjacent or sandwiched relation to the heaters. A printhead substrate, a printhead, and a printing apparatus can be provided which can realize higher quality of a printed image and a higher printing speed by arraying the heaters at a higher density while ensuring a sufficient area for arrangement of each of the heaters.

REFERENCES:
patent: 5121143 (1992-06-01), Hayamizu
patent: 5754201 (1998-05-01), Ishinaga
patent: 6137502 (2000-10-01), Anderson
patent: 6149265 (2000-11-01), Watanabe
patent: 6409315 (2002-06-01), Komuro
patent: 6474790 (2002-11-01), Kaneko
patent: 6890048 (2005-05-01), Hirayama
patent: 6966629 (2005-11-01), Nakajima
patent: 2002-374163 (2002-12-01), None

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