Rotary wheel printing apparatus with controllable hammer strikin

Details Rotary wheel printing apparatus with controllable hammer strikin Rotary wheel printing apparatus with controllable hammer strikin

1984-11-02

1987-03-31

Burr, Edgar S.

Typewriting machines

Including type-set-assemblage mounted on carrier and...

Including type-faces movable relative to type-face-carrier

400166, 101 9303, 364519, B41J 130

Patent

active

046539450

ABSTRACT:
There is provided a printing apparatus which drives a printing wheel in response to a rotation angle data corresponding to an input character code and drives a printing hammer with an impact force corresponding to this input character code. A data processing circuit reads out the rotation angle data from a first memory, supplies a drive data corresponding to this rotation angle data to wheel driving circuit through a first data bus, and reads out the impact force data from a second memory and supplies it to a hammer driving circuit through a second data bus. The information relating to a character is accessed from the first and second memories via the same address.

REFERENCES:
patent: 3858509 (1975-01-01), Grundherr
patent: 4118129 (1978-10-01), Grundherr
patent: 4189246 (1980-02-01), Kane et al.
patent: 4293233 (1981-10-01), Hoffman
patent: 4399749 (1983-08-01), Arai
patent: 4541061 (1985-09-01), Schoon

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