On 06/14/2013 04:35 PM, William Sommerwerck wrote:
The obvious answer is the "dumb" and arguably useless one -- the
drum has been damaged in some way.
Found that to be the case in both cartridges with the help of a guy in a
forum. I will buy a replacement cartridge again.

Has the cartridge been left outside the printer for an extended time,
especially in bright light? Many laser printers use an organic
photo-conductive drum coating that can be damaged by prolonged
exposure to light.
I got the device in used condition and do not know what has been done
before. Can things like that also happen by not using the device for a
long time? Just because the roller is at the same spot all the time?

Regards
Jens