| 摘要 |
<p>A mechanism for moving a tape through a printing apparatus in which said mechanism includes a back-space shuttle mounted to a frame for reciprocal movement and an advancing shuttle mounted to the back-space shuttle for reciprocal movement. Movement of the advancing shuttle in its operative direction by an advancing actuation arm of the printing apparatus causes the tape to be gripped by the advancing shuttle and advance. The tape slips through the back-space shuttle during movement of the advancing shuttle in its operative direction. Movement of the back-space shuttle in its operative direction by a back space actuation slide of the printing apparatus causes the tape to be gripped by the backspace shuttle and back-spaced. The tape slips through the advancing shuttle during movement of the back-space shuttle in its operative direction.</p> |
