Typewriting machines – Typing by other than type-face or type-die – Thermal
Reexamination Certificate
2006-09-05
2006-09-05
Nolan, Jr., Charles H. (Department: 2854)
Typewriting machines
Typing by other than type-face or type-die
Thermal
C400S076000
Reexamination Certificate
active
07101099
ABSTRACT:
A printing head which outputs an output from a sensor device provided for monitoring various condition of a printing head as digital data, and a printing apparatus using the printing head. The output from the device for detecting condition of the printing head, e.g., information indicative of a substrate temperature, a resistance value of an electrothermal transducer, an ON resistance value of a power transistor which drives the electrothermal transducer and the like is digitized on the substrate, and outputted as digital information to the outside. Further, the digital information is outputted by utilizing a clock signal and a latch signal used for transferring print data to the printing head. This does not increase the number of wires and the area of the substrate.
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Counterpart US patent enclosed.
Furukawa Tatsuo
Maru Hiroyuki
Ohta Kazuki
Yoshida Takashi
Fitzpatrick ,Cella, Harper & Scinto
Nolan, Jr. Charles H.
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