Just as a side note, the flatting still continues, even with the latest DC-Con software. It is just part of this beasts personality to flat spot the fusers. If it never slept, and got continuous usage, then you would get life out of the fuser rollers. I do not replace just for the clunking noise, all my remaining 3200 series machines still do this, I just wait till symptoms are obvious in the prints, or jamming issues, and then replace it....
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