End-of-paper sensing device

Details End-of-paper sensing device End-of-paper sensing device

1980-10-22

1982-10-19

Apley, Richard J.

Typewriting machines

Means auxiliary to typewriting function

Indicator means

4006161, B41J 2942

Patent

active

043547664

ABSTRACT:
A one-arm sensing lever having a sensing cam and carrying a permanent magnet faces a spring-biased, two-arm rocking lever across the paper-feed path of a printer; in the absence of paper, the cam drops into the feed path and the magnet is now capable of attracting one arm of the rocking lever so that its other arm operates a switch.

REFERENCES:
patent: 2036628 (1936-04-01), Grosvenor
patent: 3548994 (1970-12-01), Hudson
patent: 4095062 (1978-06-01), Savageau

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