Compatible With: - MICROLINE 420. - MICROLINE 420 (Black). - MICROLINE 420 Serial (Black). - MICROLINE 420n. - MICROLINE 420n (Black). - MICROLINE 421. - MICROLINE 421 (Black). - MICROLINE 421 Serial (Black). - MICROLINE 421n. - MICROLINE 421n (Black).Compatible Printers: OKI Microline 720, OKI Microline 791, OKI ML 420 n Black, OKI Microline 421 Serial Black, OKI Microline 421 Black, OKI ML 720 Series, OKI ML 420 Series, OKI ML 421 Serial Black, OKI Microline 420 n, OKI ML 721, OKI ML 790, OKI ML 791, OKI ML 421 Black, OKI ML 491 n, OKI ML 421 n, OKI Microline 421 n, OKI ML 490 Series, OKI Microline 491 n, OKI Microline 790 Series, OKI ML 420, OKI ML 491, OKI ML 420 n, OKI Microline 720 Series, OKI Microline 490 n, OKI Microline 420 Serial Black, OKI Microline 420 Black, OKI Microline 420, OKI ML 420 Serial Black, OKI Microline 491, OKI ML 790 Series, OKI Microline 790,…
