C6501 DU-104 Drums failing early C-2824 C2824

[methogod]

Anyone seen DU-104 drum units failing early...

been through 3 drums in less then a 1.5 PM Cycles...
Always the black drum.

Issue moves with drum, like the surface wont hold charge anymore.
Runs in lower humidity environment.
C2824 Once in a while

2.5M clean machine, super well taken care of....

HV or Erase Lamps?

Anything i should look for?