End of paper indicator for typewriters

Details End of paper indicator for typewriters End of paper indicator for typewriters

1977-06-17

1981-03-24

Sewell, Paul T.

Typewriting machines

Means auxiliary to typewriting function

Indicator means

400706, B41J 2948

Patent

active

042577128

ABSTRACT:
A length of light piping is formed to fit in a position in a typewriter with a pickup end viewing the contrast between the black paper roller and a light end of a paper sheet as it nears an exit position from the roller, and with a viewing end visible to the typist for sensing the end of the paper visually.

REFERENCES:
patent: 1114633 (1914-10-01), Neidig
patent: 3599586 (1971-08-01), Newman
patent: 3739095 (1973-06-01), Alden
patent: 4014427 (1977-03-01), Rines

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