I use a brother mfc 8710dw and get refilled/remanufactured toner and drum units from Laser Tek Services. I have had good luck with them. Lately my machine will jam when we print it does it about 1 out of every 6-7 times we print a job. I am wondering if it is the toner or drum unit but I am not sure. Any help would be appreciated. We do fan the paper before we install it.