[BUG] Error logged repeatedly at 1s intervals

[cerebrate]

Description

While this integration is configured and Home Assistant is running, the error log is filled with a single repeated message.

Environment

• Home Assistant Version: 2025.11.3 - 2025.12.0
• SNMP Printer Integration Version: 1.1.0
• Printer Manufacturer: Canon
• Printer Model: GX2020
• SNMP Version: 1

Steps to Reproduce

Occurs continually once integration configured.

Expected Behavior

One, or a few, errors to be logged at integration startup.

Actual Behavior

This error is logged at roughly one second intervals while Home Assistant is running:

2025-12-04 16:33:44.893 ERROR (MainThread) [custom_components.snmp_printer.snmp_client] Printer 172.16.0.96: SNMP error: noSuchName at 1.3.6.1.2.1.43.6.1.1.4 (switching to cached data if available)
2025-12-04 16:34:46.344 ERROR (MainThread) [custom_components.snmp_printer.snmp_client] Printer 172.16.0.96: SNMP error: noSuchName at 1.3.6.1.2.1.43.6.1.1.4 (switching to cached data if available)
2025-12-04 16:35:47.883 ERROR (MainThread) [custom_components.snmp_printer.snmp_client] Printer 172.16.0.96: SNMP error: noSuchName at 1.3.6.1.2.1.43.6.1.1.4 (switching to cached data if available)
2025-12-04 16:36:48.878 ERROR (MainThread) [custom_components.snmp_printer.snmp_client] Printer 172.16.0.96: SNMP error: noSuchName at 1.3.6.1.2.1.43.6.1.1.4 (switching to cached data if available)
2025-12-04 16:37:49.882 ERROR (MainThread) [custom_components.snmp_printer.snmp_client] Printer 172.16.0.96: SNMP error: noSuchName at 1.3.6.1.2.1.43.6.1.1.4 (switching to cached data if available)
2025-12-04 16:38:50.880 ERROR (MainThread) [custom_components.snmp_printer.snmp_client] Printer 172.16.0.96: SNMP error: noSuchName at 1.3.6.1.2.1.43.6.1.1.4 (switching to cached data if available)

In all other ways (the cover data is absent, but the printer in question doesn't provide it), the integration functions properly.

[ntavares]

I have the same error.

I can also add that the OID one level up shows:

$ snmpwalk -v1 -c public <IP> 1.3.6.1.2.1.43.6.1.1
SNMPv2-SMI::mib-2.43.6.1.1.2.1.1 = STRING: "Printer Cover"
SNMPv2-SMI::mib-2.43.6.1.1.3.1.1 = INTEGER: 4

I get this same result on a HP P2015dn and on a Brother MFC-L9570CDW. I didn't go to the MIB to check what's .4

I've tried to disable the entity (in the hopes that it doesn't get polled) but looking at the code, looks like its enabled/disabled is not taken into account, so here's a suggestion for improvement.

Another alternative would be to automatically disable the entity if it's not found?

[Dinth]

Same issue on Canon iSensys MF272dw