Settable drum series printing wheel arrangement
    4.
    发明授权
    Settable drum series printing wheel arrangement 失效
    可设置的滚筒系列打印轮安装

    公开(公告)号:US3580169A

    公开(公告)日:1971-05-25

    申请号:US3580169D

    申请日:1969-10-08

    IPC分类号: B41L19/00 B41J5/02 B41J1/22

    CPC分类号: B41L19/00

    摘要: A data recorder including a plurality of coaxial settable print wheels nested in closely spaced printing relation, and rotary gear trains for positioning the print wheels under control of selectively operable indexing wheels spaced only a short distance from the print wheels. Extension gears are provided for laterally spreading out the rotary gear train from the closely positioned print wheels to the indexing wheels, thereby spreading apart adjacent indexing wheels sufficiently to allow for operator finger contact with the indexing wheels individually to permit independent movement thereof.