Variable Tension Peripheral Belt Drive for Ribbon
Original Publication Date: 1980-Jul-01
Included in the Prior Art Database: 2005-Feb-13
In structures for driving ribbon cartridges through a peripheral belt drive which drives only the take-up spool, we have noted that as the take-up spool fills, the angle of warp of the belt drive to the ribbon spool being driven increases so that less belt tension is required to prevent slippage between the peripheral drive belt and the driven ribbon on the take-up spool. The present structure allows belt tension to be tuned to the size of the ribbon supply on the take-up roll so that belt tension is highest when the take-up spool is smallest and decreases as the ribbon on the take-up spool increases.