1.We guarantee premium quality with imported bulk developer from Japan,and with its greatest compatitiveness; 2.Even size of developer particles and long-life usage,user-friendly as well; 3.Facilitate to improve the sorptioin of toner, so as to get exllent print effect,like good darkness,low dust background,strong stickness,etc. 4.Our developers for use in models and machines as below. FP-350D-250/350/450/ZL20FP-1820DP-1520/1820/1515/Z60JFP-2310DP-2310/3010/2330/3030/Z120EFP-3510DP-3510/3520/4510/4520/6010/Z241DFP-7113FP-7113/7115/7713/ZF15FP-7718FP-7718/7722/7818/7824/ZK10FP-7728FP-7728/ZK20