Printhead formed of element substrates having function circuits

Details Printhead formed of element substrates having function circuits Printhead formed of element substrates having function circuits

2011-04-05

2011-04-05

Stephens, Juanita D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S058000

Reexamination Certificate

active

07918538

ABSTRACT:
In a printhead having a plurality of element substrates, the effects of the rise in element substrate temperature and current noise are not manifested in a biased manner in only one of the element substrates. The printhead includes a plurality of printing elements and is provided with first and second element substrates having the plurality of printing elements and a second element substrate in such a manner that the first element substrate and second element substrate are spaced apart, with the first element substrate having a first function circuit electrically connected to the second element substrate and having processing functions used for driving the printing elements of the second element substrate.

REFERENCES:
patent: 6027198 (2000-02-01), Tanaka et al.
patent: 6290334 (2001-09-01), Ishinaga et al.
patent: 6302504 (2001-10-01), Imanaka et al.
patent: 6945622 (2005-09-01), Sakurai
patent: 2005/0134620 (2005-06-01), Hirayama et al.
patent: 2006/0284909 (2006-12-01), Kasai et al.

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