I still have an old 560 lying around, so hopefully I can be of some help. First question is did it suddenly stop ripping fast and slow down, or is it always this way? Are you sending it PDF version 1.3 or Postscript files? Postscript is different from EPS (Encapsulated Post script) and the rip will handle them different. You also must remember that rip 50 has less processing power than today's dumb phones. The resolution of the output doesn't change the rip time. The complexity of the job will also effect the rip time. If you think the rip is faulty you can always turn it to the test setting and let it produce a test file and see if it images fine.