The GLR-50 Roll Label Rewinder works with all thermal transfer and direct printers including Printronix printers, T2N, Zebra 105SL, ZM4, Datamax Cognitive, TEC SATO, and more. The Label Rewinder has a winding direction selector switch which allows selecting the mode of rewinding (outside or inside). Ideally, if roll labels are wound out initially, they should be rewound out and if they were wound in initially, they should be rewound in.