Ok the black cartridge itself is there but the check gives no good output with only the “OK - [black…”
This you can test on the command line with “cmk --debug --checks=printer_supply -vvn hostname”
Or you can inspect the raw data from the printer with snmpbulkwalk -Cr10 -v2c -c public -m "" -M "" -Cc -OQ -OU -On -Ot 10.0.0.207 .1.3.6.1.2.1.43.11.1.1