Typewriting machines – Including interposed inking device for record-medium – Package for ribbon facilitating mounting of ribbon on...
Patent
1984-11-23
1986-01-07
Crowder, Clifford D.
Typewriting machines
Including interposed inking device for record-medium
Package for ribbon facilitating mounting of ribbon on...
4002161, 400212, B41J 3514
Patent
active
045631000
ABSTRACT:
A printer includes a carriage, a printing head, a platen, a cartridge holder for removably holding a cartridge accommodating a multi-colored ink ribbon which is rockably mounted on the carriage so as to be able to move the multi-colored ink ribbon in the width direction relative to the printing head, and a ribbon-position switching device for driving the cartridge holder to bring a desired color zone on the multi-colored ink ribbon to a position corresponding to an end of the printing head for using the desired color zone. The ribbon-position switching device comprises: a stepping motor provided on the carriage for driving the cartridge holder; a step member provided on the cartridge and having engagement recesses corresponding in number to the number of color zones on the multi-colored ink ribbon; a guide member extending from the carriage in the width direction of the multi-colored ink ribbon; a supporting plate guided for movement by the guide member in the width direction of the multi-colored ink ribbon; coil springs for biasing the supporting plate away from the carriage; an adjusting screw for stopping the supporting plate at a desired position against the biasing force of the coil springs; and an engaging projection member provided on the supporting plate and biased to be in engagement with one of the engagement recesses of the step member.
REFERENCES:
patent: 4247210 (1981-01-01), Kacmarcik
patent: 4280767 (1981-07-01), Heath
patent: 4407595 (1983-10-01), Gershnow
patent: 4472073 (1984-09-01), Valle et al.
Crowder Clifford D.
Pearson Charles A.
Tokyo Electric Co. Ltd.
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