Mamiya C220 - diagonal scrape lines on negatives?

[shutterfinger]

I use a clean microfiber heavy weight lens cleaning cloth to wipe my scanner's glass after brushing/blowing off any debris that could scratch.
https://www.amazon.com/Matto-Powder...d=1621275466&rnid=2941120011&s=beauty&sr=1-12
https://www.adorama.com/cpcml.html