| 摘要 |
PURPOSE:To enable an ink ribbon to be used on both sides thereof through reversing a cassette face side back, by a construction wherein two ribbon take-up shafts fixed respectively to both ends of an ink ribbon can be fitted to ribbon-feeding driving shafts of a printer from both face-side and back-side directions of a cassette. CONSTITUTION:A multiple-type thermal ribbon 1 is taken up by the right-side take-up shaft 2, is led through a right-side idle roller 3, a thermal head 4 and a left-side idle roller 5, and an end thereof is fixed to the left-side take-up shaft 6. These component parts are fitted to a cassette casing 7 and a cassette over. The outer shape of the cassette is symmetrical on the face and back sides as well as on the left and right sides. When the thermal ribbon 1 wound around the right-side take-up shaft 2 is used and is completely taken up by the left-side take-up shaft 6, the ribbon cassette is fitted to the printer, with the cassette casing 7 side on the face side. The ribbon 1 is taken up from the left-side take-up shaft 6 onto the right-side take-up shaft 2, whereby it can be again used. |
