I have to second what neil has said..
stay clear of the Ryobi..
i also ran the same 524HX that neil ran at the same company..
Bloody terrible machine, shoddily made, cheap and nasty in my opinion..
We were always replacing parts on the machine, compressor, pumps. we ended up replacing the parts ourselves as the engineers that worked for Ryobi in the UK didn't know what they were doing.. some of them had not even set any rollers... once called to get some feeder parts replaced and they sent an engineer that had not even opened up a feeder before, so i sent him away and did it myself....
Steer clear of Ryobi...... if you want decent press, decent print quality and decent service backup