... (K, M, C, Y)For OKI:Use for OKI C3300/3400(K, M, C, Y)Use for OKI C3100/3200/5100/5200/5300/5400 ... 5510(K, M, C, Y)Use for OKI C5600/5700(K, M, C, Y)Use for OKI C5500/5800/5900(K, M, C ... , C, Y)Use for OKI C8600/C8800(K, M, C, Y)Use for OKI C9300/C9500(K, M, C, Y)Use for OKI C7100/7300/7500(K ... , M, C, Y)For Ricoh:use for Ricoh Aficio CL ...