Printer

Details Printer Printer

1990-03-01

1990-10-09

Burr, Edgar S.

Printing

Selective or progressive

Bed and platen machines

400146, B41J 120

Patent

active

049613766

ABSTRACT:
A printer for printing on a print medium. A type carrier is in the form of an endless belt having a plurality of type elements on a side face. A hammer mechanism urges the type elements in the print medium into contact. The hammer mechanism extends substantially parallel to a portion of the type carrier and includes a hammer member for each printable position of the printer. A print drum mechanism selectively drives the hammer mechanism. The print drum mechanism includes the print drum with a plurality of projections around the peripheral surface of the print drum. There are a like number of projections and hammer members. Each of the projections is adapted to drive a separate hammer member and rotation of the print drum results in the driving of the hammer members by the projections. A control mechanism coupled to the type carrier and the print drum mechanism selectively advances the endless belt relative to the hammer mechanism and rotates the print drum. As a result, selective printing of the type elements onto the printing medium is performed.

REFERENCES:
patent: 3286625 (1966-11-01), Petit
patent: 3795187 (1974-03-01), Babler
patent: 3848527 (1974-11-01), Nihira
patent: 3884338 (1975-05-01), Koller
patent: 3915276 (1975-10-01), Metz
patent: 4297944 (1981-11-01), Nihira
patent: 4455936 (1984-06-01), Hovi
patent: 4475828 (1984-10-01), Nishikawa

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