wrong oid read for mac address on samsung printer

As I see in snmpwalk:

CMD[/usr/bin/snmpbulkwalk -v2c -c *** -Pu  -OQUs -m IF-MIB -M /opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp 'udp':'printer':'161' ifEntry]

...

ifDescr.1 = Embedded Ethernet Controller, 10/100 Mbps, v1.0, UTP RJ-45, connector A1, 100 full duplex

ifDescr.6 = Software Loopback interface

...

ifPhysAddress.1 = 69:7a:0:0:0:0

ifPhysAddress.6 = 69:7a:0:0:0:0

for info oid ifPhysAddress.1 in numeric is .1.3.6.1.2.1.2.2.1.6.1
I not know where you get data from first comment..

And as I said this is bug in firmware, no ways for fix in observium..
only way for stop spamming - set this ports as ignored and second write to samsung support.

why would you create an issue without a description?

this isn't a bug, we show only what the device sends to us.

how did you manage to close this in 2 min without even letting me add the detailed explanation.
plus points for the speed but major minuses for the arrogance.

The Recent Eventlog Entries gets spammed on every polling run with this entries (from the network printer):
embedded Et controller, 10/100 mbps, v1.0, utp rj-45, connector a1, 100 full duplex Interface changed: [ifPhysAddress] 5c7a00000000 -> 913a00000000
and this
software Lo interface Interface changed: [ifPhysAddress] 913a00000000 -> 03ba00000000

the printer is Samsung CLX-3170 Series and the correct oid from an snmpwalk (that string is the correct mac)
.1.3.6.1.2.1.2.2.1.6.1 = STRING: 0:15:99:2b:27:e9