I purchased this printer for it's disc printing capabilities and it as worked well until now. Now when I place a disc on the tray for printing, it is immediately ejected before printing has begun. I have cleaned the tray and it's reflective mirrors. I also use Top Brand Printable Discs. I have gone through the correct procedure time and time again and so am well aware of how to operate the machine in this mode. The printer has not been over worked and still produces first rate documents and photographs. Anyone got any ideas please before I go and lash out money for a new machine?