Do you mean on the actual print dialog? I don't think there is anything you could force there. Been awhile (like, school time while) that I printed with Java, but I believe it chained the print to the OS level print handling. If its greyed out options, that would typically be a driver level. I'll check the docs after to see if I can find anything in the print properties though.
header('HTTP/1.1 420 Enhance Your Calm');