Abstract: Paper transporting device for cash registers, data processing machines or the like, including a motor driven cam disc having a contoured surface and a plurality of depressions or varying depth formed therein, a gear segment lever pivotally mounted about a fixed axis, gear teeth and a roller integral with the gear segment lever, the roller being operable to contact the cam disc, a gear operable to mesh with the gear teeth of the gear segment lever, a free running clutch driveable by the gear, a paper transport roller driveable by the free running clutch, a device for locking the gear segment lever in a swungout position, and a pivotable curved lever having a free end, the curved lever being disposed in one of the depressions formed in the cam disc and being rotatable therewith, the free end of the curved lever being biased against the contoured surface of the cam disc.