Position indicator means for a high speed printer or the like

Details Position indicator means for a high speed printer or the like Position indicator means for a high speed printer or the like

1984-01-12

1985-05-21

Sewell, Paul T.

Typewriting machines

Means auxiliary to typewriting function

Indicator means

400322, 400679, B41J 2942

Patent

active

045182728

ABSTRACT:
Described is a controlled device such as a printer device, comprising an electrically operated mechanism such as a moveable print head, a scanner for sensing indicia of alignment of the electrically operated mechanism, and an electrical conductor to carry signals by which the mechanism is operated. The electrical conductor is employed to provide the indicia of alignment to be read by the scanner. Included is a description of an electrical conductor which comprises parallel conductive runs made of copper which are spaced apart and supported by a transparent electrically insulative plastic material, thus forming a timing strip on which positional indicia are defined by optical contrast between the runs and the insulative plastic material.

REFERENCES:
patent: 3810189 (1974-05-01), Casperson et al.
patent: 4044881 (1977-08-01), Chai et al.
patent: 4116567 (1978-09-01), San Pietro

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