The MP970 should be similar to my MP990. I managed to get my MP990 fully functional with High Sierra.I installed the MP Navigator 3.1.5 (showed up as "MP Navigator 3.1") and deleted the old 3.0 version in the program folder. Then I renamed the file "...
I managed to get my MP990 fully functional with High Sierra.The trick was to install the MP Navigatro 3.1.5 version mentioned earlier and rename it in the program folder from "3.1" to "3.0".After that initiating the scan from the printer worked again...