B30 Series R4400 Printer Ribbon, White. B30 Series "Drop and Click" print ribbons enable 5-second ribbon supply changes. No calibrating, no threading, no waste, no hassles and the ink always faces the right direction. One-color ribbon for printing a single color onto a label. R4400 Series Resin Formulation offers excellent resistance to solvents, scratches and high heat when printed on the appropriate label material. Recommended for printing on glossy or very smooth label stocks, such as B-483 Ultra Aggressive Polyester and B-423 Permanent Polyester from Brady®. Self-contained B30 Series cartridges drop straight into the printer with a "click".