The problem is that your printer don’t has an valid entry in “.1.3.6.1.2.1.1.1.0” and “.1.3.6.1.2.1.1.2.0”
Booth are empty. CheckMK cannot see what type of device this is.
If you configure your printer that it has no system description OID → “Hosts without system description OID” then you should have again the data.
I don’t know why you get empty output on the import two OIDs.