1.Experienced and exquisite mould development and good mould blowing techniqueensure stable quality and replaceable use in machine; 2.Best compatility and strict quality control before shipment guarantee excellent costomer services and smooth cooperation; 3.We are direct manufacturer of toner powder,which facilitate to improve print effect more efficiently and collect customer's feedback; 3.We can do customized and personalized package for customers to add customer-oriented value. 4.TK439 cartridge for use in KM 221/220/181/180; 5.Ourkyoceracopier cartridge models and matched used machines as below. OEM Model For Use InTK 17FS 1010/1000/1050TK 18FS 1018MFP/1020D/1118MFPTK 100KM 1500/1820TK 110/111/112FS 720/820/920TK 120/122FS 1030DTK 50FS 1900TK 60FS 1800/3800TK 55FS 1920TK 65FS 3820/3830TK 310/312FS 2000DTK 320/322FS 3900DNTK 330/332FS 4000DNTK340/342/344FS 2020DTK 350/352FS 3920DNTK 360/362FS 4020DNTK 675/678/679KM 2540/2560/3040/3060TK 710/712FS 9130DN/9530DNTK 715/717KM 3050/4050/5050TK 540/542/544(Y/M/K/C)FS C5100DNTK 410KM 1620/1650/2050/2020TK 418KM 1620/1650/2050/2020TK 420KM 1635/2035/2550TK 428KM 1635/2035/2550TK 438KM 1648TK 430KM 1648TK 435KM 221/220/181/180TK 439KM 221/220/181/180TK 448KM 221/220/181/180TK 458KM 221/220/181/180KM 3035KM 3035/4035/5035/4030/2530KM 3031KM 3031/4031/3035/4035/5035/2531/3530TK 70FS 9520/9120AD 309AD 259/359/409/309/405/509AD 165AD 169/203/205 ;