Hello, I have a wc 7220 with a long history, I've got a fault code 310.330 witch is for the fuser motor, I change it once and it didn't work. After a research I came up with changing again fuser motor with mcu and SD card, I did reload software with forced alt boot, the problem with the fuser motor is sold, in diad mode the motor is running perfectly. But I came accross with another problem the machine doesn't recognize either toner and drum all of them, It gives me a message that says they are incompatible. Before I change everything the machine didn't have this problem. The machine has a sold supplies plan and everything is compatible I am sure about that. What should I do to fix this problem? Can I even fix something like that? Thank you.