Q: HP 4890 cannot store files

For scanning, there's a workaround.

Try using the Image Capture app in your Applications folder for scanning.

Connect the scanner to your Mac whether Wi-Fi or USB.

Launch Image Capture.

Click the very small black box bottom left side of the Image Capture window.

You'll see this pop up menu:   Connecting this (device) opens:

You can select a default app to scan (Image Capture) and select a folder from the Imort To pop up menu on the right to save scanned files to.

Mac Basics: Using a scanner

Or download another version of HP Scan app.