Print ribbon for use with okidata ml120, ml172, ml180, ml182, ml183, ml184, ml186, ml192, ml193, ml320, ml320tn, ml321, ml321tn. This is a OEM RIBBONS OKIDATA brand Ribbon Supply (PRINT RIBBON) that works with the following printers / machines (ML120, ML172, ML180, ML182, ML183, ML184, ML186, ML192, ML193, ML320, ML320TN, ML321, ML321TN). Product Features: Compatible with: Microline 120, 172, 180, 182, 182 Plus, 182 Turbo, 183, 184 Turbo, 186, 192, 192 Plus, 193, 310, 320, 320 Elite, 320 FB, 320 Turbo, 320 Turbo/n, 320 Turbo-D, 321, 321 Elite, 321 Turbo, 321 Turbo/n, 321 Turbo-D Duty Cycle: Up to 3 million characters Printing Color: Black Printing Technology: Dot-matrix Product Description: OKI - black - print ribbon cassette Product Type: Print ribbon cassette Benefits of this product: Quality OKI accessories and supplies are the perfect match for OKI printers and fax machines because they are developed by the same engineers and manufactured to OKI strict specifications. PRINT RIBBON. ML120, ML172, ML180, ML182, ML183, ML184, ML186, ML192, ML193, ML320, ML320TN, ML321, ML321TN. OEM OKIDATA Brand.