1 - Install the Decument Routinq Aqent on the client machines where users will be printing the checks.
2 - Enter the Dynamics 365 Finance and Operations configurations in the Document Routing Agent.
3 - Discover and add the check printer from the Document Routing Agent.
4 - Discover and add the check printer to the system from Dynamics 365 Finance and Operations.
Reference:
https://docs.microsoft.com/en-us/dynamics365/unified-operations/dev-itpro/analytics/install-document-routing-agent