Dot matrix printing system

Details Dot matrix printing system Dot matrix printing system

1988-02-01

1989-08-29

Pieprz, William

Typewriting machines

Including interposed inking device for record-medium

Including mechanism for shifting ribbon laterally at...

400212, B41J 3510

Patent

active

RE0330388

ABSTRACT:
In the dot matrix printer disclosed herein, a multicolor ribbon is shifted to bring different colored stripes in alignment with the nosepiece of a dot matrix printhead by means of cup-like ribbon guide members journaled on either side of the nosepiece. Each guide member provides, in its periphery, an arcuate slot through which the ribbon can freely slide as the printhead traverses. A stepping motor is coupled to the guide members for rotating them so as to selectively bring a stripe of desired color into operative position.

REFERENCES:
patent: 3899065 (1975-08-01), Brignole
patent: 4368993 (1983-01-01), Brass et al.
patent: 4395148 (1983-07-01), Gruner et al.
patent: 4407594 (1983-10-01), Link
IBM Technical Disclosure Bulletin, "Misalignment Correction for Ribbon Lift Mechanism" by Burchett et al., vol. 26, No. 3A 8-83, pp. 1159-1160.

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