Typewriting machines – Including type-set-assemblage mounted on carrier and... – Imprint by movement of record-medium against type-face
Patent
1992-10-21
1994-07-19
Wiecking, David A.
Typewriting machines
Including type-set-assemblage mounted on carrier and...
Imprint by movement of record-medium against type-face
400124, B41J 230
Patent
active
053302770
ABSTRACT:
A drive system for a wire dot head is provided with sensors for detecting displacements of corresponding print wires. Each sensor outputs a movement initiation timing signal and an impact timing signal for the corresponding print wire. An electric current to be fed to an associated coil is normally controlled by these timing signals. It is detected whether these timing signals are obtained in a predetermined time period. If not, electric power is continuously fed to the coil or is forcedly cut off so that the timing signals are obtained within the predetermine time period.
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Akutsu Naoji
Kasai Tadashi
Komori Chihiro
Tanuma Jiro
Uchida Takao
Kelley Steven S.
OKI Electric Industry Co., Ltd.
Rabin Steven M.
Wiecking David A.
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