Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1994-07-27
1996-11-05
Lund, Valerie A.
Incremental printing of symbolic information
Ink jet
Ejector mechanism
298901, 29611, 347 63, G01D 1518, B41J 216, B41J 214
Patent
active
055722440
ABSTRACT:
A large array or pagewidth printhead fabricated from printhead elements or subunits having adhesive-free butting edges. Each of the printhead elements includes a heater element and a channel element bonded together by an adhesive such as an epoxy. A space or adhesive-receiving aperture is formed between the channel element and the heater element before mating so that any adhesive forced from between the channel element and heater element by the pressure of mating does not flow onto the butting surfaces, but instead overflows into the space thereby maintaining an adhesive free butting edge. The channel element includes an etch trough which forms the space. The printhead elements are butted together to form a large array printhead. The absence of adhesive on the butting edges improves manufacturability of the large array printhead.
REFERENCES:
patent: Re32572 (1988-01-01), Hawkins et al.
patent: 4678529 (1987-07-01), Drake et al.
patent: 4774530 (1988-09-01), Hawkins
patent: 4829324 (1989-05-01), Drake et al.
patent: 5000811 (1991-03-01), Campanelli
patent: 5160403 (1992-11-01), Fisher et al.
patent: 5198054 (1993-03-01), Drake et al.
patent: 5221397 (1993-06-01), Nystrom
Drake Donald J.
Nguyen Hung C.
Krieger Daniel J.
Lund Valerie A.
Xerox Corporation
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