Ensure printed documents are clean & easy to read with this ribbon cartridge. It's specially engineered for use with Okidata 590 & 591 model printers for an exact fit, & this OKI printer ribbon has a compact size for efficient storage. Provides crisp, cost-effective printing suitable for a commercial environment. Impact print technology offers high-quality prints. Device Types: Impact Printer; Color(s): Black; OEM / Compatible: Compatible; Ribbon Type: One-Color Ink Cartridge.