For use with Oki C310/330 and C510/530. Use a to improve machine performance and quality. Will deliver reliable outstanding print quality. Simple to install and use without hassle. Highly durable and long-lasting: approximately 60,000 pages.Compatible Printers: OKI C 332 DNw, OKI MC 363 DNW, OKI C 332 DN, OKI MC 363 N, OKI MC 363 DN, OKI MC 340 Series, OKI ES 5430 DN, OKI MC 362 DN, OKI MC 342 DNW, OKI MC 562 DNW, OKI MC 562 DN, OKI C 531 DN, OKI MC 332 DN, OKI C 321 DN, OKI MC 342 DN, OKI C 310 DN, OKI MC 561 DN, OKI ES 5461 DN MFP, OKI MC 361 DN, OKI ES 3451 DN MFP, OKI C 330 DN, OKI C 331 DN, OKI C 511 DN, OKI MC 351 DN, OKI C 301 DN, OKI C 510 DN, OKI C 530 DN, OKI MC 352 DN