How to scan an old photo (not digital) into my Mac from printer/scanner?

It sounds like you have an all-in-one printer that includes a flatbed scanner.

If the scanner is AirPrint-compatible, the Mac may be able to use it without the aid of a separate driver. Otherwise you will need a scanner driver provided by the manufacturer – or a commercial package like VueScan which has its own scanner drivers.

To do the actual scanning, you might use

• Image Capture (an application included with macOS)
• A scanning application provided by the scanner manufacturer
• VueScan
• etc.

Set up a scanner to use with Mac - Apple Support (LB)

Scan images in Image Capture on Mac - Apple Support

I use Apple's Image Capture app (installed with macOS) with a Canon LiDE flatbed scanner.

It works great, even with that older scanner.

Scan images in Image Capture on Mac - Apple Support (IS)

Do you have a scanner? Which make and model?