High frequency power integrating printer

Details High frequency power integrating printer High frequency power integrating printer

1975-03-18

1976-12-21

Coren, Edward M.

Printing

Selective or progressive

Bed and platen machines

101 9329, 101DIG5, B41J 902

Patent

active

039981533

ABSTRACT:
In order to reduce the noise resulting from the act of printing in a typewriter or line printer, the hammer is oscillated at high frequency with low power pulses, and the oscillating hammer is moved into proximity to the inked ribbon whereby the hammer repetitively impacts the ribbon in order to print one character.

REFERENCES:
patent: 1935194 (1933-11-01), Wilsey
patent: 2339199 (1944-01-01), Smith
patent: 3280740 (1966-10-01), Balamuth et al.
patent: 3486449 (1969-12-01), Levine
patent: 3890892 (1975-06-01), Loose et al.

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