The app is most likely using multicast to perform discovery and initial connection to the printer. As @ww mentioned, bonjour forwarding can be used to send multicast across VLANs (although in my experience it's not always quick/reliable). Opening a support case and using packet captures is probably the best way to confirm. If VLAN segmentation between clients and the printer is required, you might be better off either: - Pointing the clients directly to the printer (if it's just a single printer) - Setting up a print server to manage the printers, and pointing the clients to that (if you have multiple printers)
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