| 摘要 |
The device for stabilising the tension of a paper ribbon (2) is arranged in an ink-jet, vertical plotter, for tracing shapes for cloths. Said plotter is provided with a paper dragging system (1) comprising: a feeding roller (10), supporting a feeding web (3); a supporting and dragging roller (11), supporting said ribbon (2) near a printing head (4), and dragging said ribbon (2); a rewind roller (13), receiving said ribbon (2). The aforesaid device consists of oscillating tensioning means (30), which operates on the upper face (2a) of said ribbon (2), and which exerts on this latter a substantially constant force, against the dragging force exerted by the supporting and dragging roller (11). |
