I've got to hand it to Sharp. The ARM350/355//450/455 as well as the ARM550 series are great,and the newer MX versions are even better. The Minolta EP4000/ 5000's are great too.As well as the DI520/620. We once had a Hospital ER with and ARM550 and MXM620 that got over 3 million copies in a yr without any real issues