Defective warranty just 3 months --- device

And I did so not even printed 2 sets toner empty. Paper Feed suddenly stops working properly, jam is reported (without reason) and the printed image is full of fragments. Have the unit already repeatedly disassembled and reassembled, then it goes back a few days, then again the same mistakes. Have bought me the part because I print extremely low and any possible inkjets are always dried. But if I now expect high investment costs on the few hundred copies, which I made with the 1690MF ... * gag *