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HP Recommended
HP LaserJet Pro 300 color MFP M375nw
macOS 10.15 Catalina

My laserjet and old Mac book used to work flawlessly together.  When i upgraded to my Mac Book Pro (2019 version) all i got was connectivity problems.  I can still print but scanner function no longer works.  I've downloaded drivers, deleted drivers restarted, and unplugged the hell out of the printer and yet I still get error messages (like Warning drivers will harm my computer)  i followed all the advice and still my computer will not SEE my scanner.  only crumb i found is that the HP printer is no longer using/connected to/ involved with Bonjour.  But can't figure why that stopped happening or how to restore.  PLEASE HElp.  I'm about to chuck my somewhat of a dinosaur all in one, but am loathe to spend hundreds more on a new printer if i can get this one working again.  

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