i was wondering if any of you guys were having as many c-449 and c-471 codes on your models es520"s series thru the new es-555 series.we have had a lot and i mean alot of these.we are replacing the fuser ih boards like crazy.we have had a few front door switches taking them out and a few power supplies boards go bad.but most are just blowing either the fuse or the whole ih board.the machines most have power filters on them.haven't heard much from our national toshiba tech on a fix for this problem.does anyone know the reason for this or have found a fix or prevent for this.i hope to hear from you toshiba techs out there.thanks