IRadvc250 - drum error

[MunsterTech]

hi

Had a tech ring me today, pulling his hair out, he has gone to 2 different IRadvc250 in the last week, has replaced the bk drum and straight away has had the same error come up E21-0420 on both machines. He has done most things, upgrade firmware, tried a new drum but still same error, old drum goes back and error goes away, very similar to 2220 Series etc. Havent seen this issue myself, i checked sims and backend , nothing on there. Anyone seen this or send him in the right direction?

tks

[Canuck]

I've had issues with drums on these machines. Got one that if you put an new drum in, it destroys it. No contract....customer doesn't want to spend money. So I stick drum in showroom machine to initialize it, then go stick it in customers machine. Calibrate,etc and see ya...