Little mustaches, i like it. I always called them little folded staples.
Remove the IT belt from the frame and clean the internal rolls, especially the 2 on each end. If something gets caught under those rolls, the mustache / staples will appear. The belt cannot clean as it rides over the blade, it jitters, and waste toner spills out. I always describe waste toner as Stadium Mustrard; yellowish brown.
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