... reset chip for KonicaMagicolor 7450/7440/7450 1,page yield:12/15K 2.Color:Black,C,M ... quality guarantee and 1:1 replacement for defective goods, We do QC test strictly for our laser ... paying before delivery.No payment collection. We only can deliver goods after getting full payment. Toner chip packing: Anti ... to qualify for a refund or exchange of goods.Buyer is responsible for shipping cost of returning, ...