RIBBON FEED FOR A TYPEWRITER
    1.
    发明专利

    公开(公告)号:AU530347B2

    公开(公告)日:1983-07-14

    申请号:AU6215180

    申请日:1980-09-09

    Applicant: IBM

    Abstract: In a daisy wheel or rotary print wheel typewriter, a single motor is employed to accomplish both ribbon lift and feed for typewriter ribbon and correction ribbon loaded in a cartridge assembly. A single motor drive moves the cartridge assembly support about an axis to present the typewriter ribbon or the correction ribbon to the print point at the print line. When the elevation of the cartridge assembly about the axis is such to permit normal typing upon the typewriter ribbon, only the feed ratchet for the ribbon is engaged. Alternatively, when the rotation is greater, for example, for typing on the correction ribbon, the added elevation of the cartridge assembly effects disengagement of the normal ratchet feed for the typewriter ribbon while allowing advancement of the correction ribbon.

    RIBBON FEED AND LIFT MECHANISM FOR A TYPEWRITER

    公开(公告)号:CA1126198A

    公开(公告)日:1982-06-22

    申请号:CA358591

    申请日:1980-08-19

    Applicant: IBM

    Abstract: RIBBON FEED AND LIFT MECHANISM FOR A TYPEWRITER In a daisy wheel or rotary print wheel typewriter, a single motor is employed to accomplish both ribbon lift and feed for typewriter ribbon and correction ribbon loaded in a cartridge assembly. A single motor drive moves the cartridge assembly support about an axis to present the typewriter ribbon or the correction ribbon to the print point at the print line. When the elevation of the cartridge assembly about the axis is such to permit normal typing upon the typewriter ribbon, only the feed ratchet for the ribbon is engaged. Alternatively, when the rotation is greater, for example, for typing on the correction ribbon, the added elevation of the cartridge assembly effects disengagement of the normal ratchet feed for the typewriter ribbon while allowing advancement of the correction ribbon. LE9-79-006

    RIBBON FEED AND LIFT MECHANISM FOR A TYPEWRITER

    公开(公告)号:CA1146106A

    公开(公告)日:1983-05-10

    申请号:CA358592

    申请日:1980-08-19

    Applicant: IBM

    Abstract: IMPROVED RIBBON FEED AND LIFT MECHANISM FOR A TYPEWRITER In a daisy wheel or rotary print wheel typewriter, a single motor (stepper motor) is employed to accomplish both ribbon lift and feed for typewriter ribbon and correction ribbon loaded in a cartridge assembly. A single motor drive moves a cartridge assembly support about an axis to present either the typewriter ribbon or the correction ribbon to the print point at the print line. In the first portion of the arc that the cartridge assembly moves, normal typing on the typewriter ribbon occurs, only the feed ratchet for the typewriter ribbon being engaged, Alternatively, when the rotation is greater, to present a correction ribbon at the print line, the added elevation of the cartridge assembly causes disengagement of the normal ratchet feed for the typewriter ribbon but allows advancement of the correction ribbon. LE9-79-023

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