JPS6382568U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a plan view showing the configuration of the cartridge part of a printer that embodies this invention, Fig. 2 is a partially cutaway plan view showing the ribbon cassette mounted on the carriage, and Fig. 3 is A of Fig. 1. - Partially enlarged sectional view taken along line A; Figure 4 is a partially enlarged sectional view taken along line B-B in Figure 1; Figures 5 and 6 are partly enlarged sectional views taken along line B-B in Figure 1;
FIG. 7 is a partial sectional view showing different operating states corresponding to FIG. 3, and FIG. 8 is a carriage showing another embodiment of the invention. FIG. 9 is a partially enlarged sectional view taken along line CC in FIG. 8. 1...Platen, 7...Thermal head, 13
...Printing ribbon, 19... Winding shaft, 24... Mainspring spring, 26... Lock mechanism.

Claims (1)

[Claims for Utility Model Registration] In a printer that prints by pressing the printing ribbon 13 against the printing paper P on the platen 1 by the printing head 7, the winding shaft 19 of the printing ribbon 13 is moved in the winding direction. Ribbon feeding in a printer characterized in that a spring spring 24 for biasing is provided, and a lock mechanism 26 is provided for restraining the rotation of the take-up shaft 19 by the spring spring 24 at all times and allowing it at least during printing. Device.