PE 8 won't recognize HP Deskjet 3521 - How do I correct that?

[HomerAlaska]

First of all...I would love to be able to talk to someone directly about this issue.  Why isn't there a help phone number?  I am on an iMac running High Sierra.  When I connected to my HP Deskjet 3521, I found the Mac doesn't recognize the scanner.  How do I correct this so I can scan in PE 8?

[Peru Bob]

Do you have the latest printer driver?

HP Deskjet 3521 e-All-in-One Printer - Driver Downloads | HP® Customer Support

[hatstead]

And while you are researching for the latest driver, check if your printer/scanner is TWAIN compliant.

Can you scan with the  native software that came with HP deskjet, save the output to a folder on your desktop, and open the scan-files  in PSE for enhancement?