Printer center sensing mechanism

Details Printer center sensing mechanism Printer center sensing mechanism

1977-09-22

1979-12-18

Coughenour, Clyde I.

Typewriting machines

Carriage or carriage-moving or movement-regulating mechanism

Carriage-feed mechanism

178 26R, 235432, 318282, 400124, 400279, 400323, B41J 1914, B41J 1978, B41J 2100, B41J 2108

Patent

active

041792238

ABSTRACT:
Three fixed optical sensing devices are positioned to sense the left and right margins as well as the center location of high speed printer carriage travel. Signals from the sensing devices are fed to programmed carriage logic control circuits which effect rapid carriage movements relative to the center location as well as the traditional left and right margin locations. Printing time of certain forms is greatly reduced by minimizing unnecessary carriage return to the left margin location.

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