Heater chip test circuit and methods for using the same

Incremental printing of symbolic information – Ink jet – Controller

Reexamination Certificate

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Reexamination Certificate

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07635174

ABSTRACT:
Test circuits on heater chips for testing a heater circuit having a heater element and a first power device. The test circuit can include a second power device, a test device configured to hold the first power device off and the second power device on for a selected heater circuit when the test device receives a signal to activate the test circuit, and a common test output to transmit a signal indicative of a state of the selected heater circuit. Methods for using the same are also provided.

REFERENCES:
patent: 4500893 (1985-02-01), Sakura
patent: 4742483 (1988-05-01), Morrell
patent: 4769657 (1988-09-01), Takahashi
patent: 4774526 (1988-09-01), Ito
patent: 4907013 (1990-03-01), Hubbard et al.
patent: 4996487 (1991-02-01), McSparran et al.
patent: 5027135 (1991-06-01), Negishi
patent: 5164747 (1992-11-01), Osada et al.
patent: 5182580 (1993-01-01), Ikeda et al.
patent: 5319389 (1994-06-01), Ikeda et al.
patent: 5621524 (1997-04-01), Mitani
patent: 5951175 (1999-09-01), Kawamori
patent: 6120125 (2000-09-01), Kim
patent: 6130683 (2000-10-01), Ju
patent: 6199969 (2001-03-01), Haflinger et al.
patent: 6371590 (2002-04-01), Hah
patent: 6616256 (2003-09-01), Cook et al.
patent: 6771087 (2004-08-01), Oz et al.
patent: 7014290 (2006-03-01), Chen et al.
patent: 7036903 (2006-05-01), Choi
patent: 2003/0011658 (2003-01-01), Parish

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