Drum sander tip really works!

I needed to sand a wide board today, and had not yet tried to remove the dark stripe running down the middle of the abrasive on the drum.

So, following the instructions provided by SuperMax, I used a small piece of plexiglass to scrape the abrasive clean.  It took some work, but I was able to remove the entire mess pretty easily.  If I had removed it when it first appeared, it would have been a really quick job.

Pretty good save of a fairly new sandpaper strip!