Typewriting machines – Including interposed inking device for record-medium – Including mechanism for shifting ribbon laterally at...
Patent
1984-09-28
1987-02-17
Wright, Jr., Ernest T.
Typewriting machines
Including interposed inking device for record-medium
Including mechanism for shifting ribbon laterally at...
4001961, 400208, 400212, 4002404, 400248, B41J 3514
Patent
active
046436014
ABSTRACT:
A ribbon positioning mechanism comprises a ribbon cartridge, a nosepiece, a stepper motor and flexible ribbon guides connecting the ribbon cartridge to the nosepiece. The nosepiece has two side members connected by a bridge, one of which has a downwardly extending leg. A rack located on the bottom of the leg engages a pinion attached to the stepper motor for lifting the nosepiece into a desired position. A ribbon, having a plurality of parallel color bands, passes from the ribbon cartridge via the flexible ribbon guides and through the nosepiece where it is aligned with a print head. The nosepiece freely slides on vertical guide posts attached to a print head carrier and printer logic controls the stepper motor to align the desired color band with the print head.
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IBM Technical Disclosure Bulletin, "High-Speed Ribbon Mechanism with Ribbon Lift Control", G. S. Aldrich, vol. 23, No. 10, Mar. 1981, pp. 4555-4556.
IBM Technical Disclosure Bulletin, "Misalignment Correction for Ribbon Lift Mechanism", Burchett et al, vol. 26, No. 3A, Aug. 1983, pp. 1159-1160.
Nash Dennis P.
Rex Donald K.
Siegl Ludwig R.
Wussow Wendy
Abzug J. L.
Bee R. E.
International Business Machines - Corporation
LaBaw Jeffrey S.
Wright, Jr. Ernest T.
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