Printer with automatic type wheel exchanging

Details Printer with automatic type wheel exchanging Printer with automatic type wheel exchanging

1988-09-02

1990-10-09

Wiecking, David A.

Typewriting machines

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

Plural type-set-assemblages selectively movable from a...

4001442, B41J 130

Patent

active

049616552

ABSTRACT:
A printer of the automatic type wheel exchanging type comprises a long platen to support a print sheet and a carriage guided so as to be reciprocated along the platen. This carriage includes: a wheel motor for detachably coupling the daisy type wheel having types in the peripheral portions of a number of radially projected spokes and for rotating this wheel; a print hammer for pressing the type of the type wheel coupled with the drive shaft of the wheel motor onto the print sheet; an enclosing box which can enclose a plurality of such type wheels; and a type wheel exchanging device for exchanging the type wheel coupled with the wheel motor for another type wheel in the enclosing box, and for coupling this wheel with the wheel motor. The enclosing box is movable in the direction almost perpendicular to the moving direction of the carriage so as to select a desired one of the type wheels in the enclosing box. The type wheel at the detachable position and the type wheels in the enclosing box overlap each other. With this small-sized, light-weight, and simple type wheel exchanging constitution, the type wheel can be efficiently and promptly exchanged and various kinds of characters can be printed at a high speed.

REFERENCES:
patent: 4026403 (1977-05-01), Inose et al.
patent: 4197022 (1980-04-01), Dollenmayer
patent: 4281938 (1981-08-01), Phillips
patent: 4289412 (1981-09-01), Dollenmayer
patent: 4307968 (1981-12-01), Habich et al.
patent: 4357115 (1982-11-01), Or
patent: 4494884 (1985-01-01), Lowell
C. D. Bleau; "Automatic Print Wheel Loader"; IBM Tech. Disc. Bull.; vol. 18, No. 10, pp. 3350-3351; Mar. 1976.
R. E. Hunt; "Multiple Print Wheel Font Changing Apparatus"; IBM Tech. Disc. Bull.; vol. 22, No. 10, pp. 4349-4350; Mar. 1980.
A. M. Robert et al.; "Impact Printer w/Cassette Daisy Wheel Type Font"; IBM Technical Disclosure Bulletin; vol. 22, No. 1, pp. 1-3; Jun. 1979.

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