I have this working I think. Thanks for the help! I used a Chromecast for testing by trying to cast from VLAN to VLAN. For anyone who finds this thread, or anyone who would review what I’ve done:
I followed the VLAN sticky guide on this forum (http://forum.mikrotik.com/t/using-routeros-to-vlan-your-network/126489/1). Allowed access to the printer VLAN from the other VLANS with firewall filters in the examples. I don’t think any reference to the mdns repeater is there because it’s newer than the post.
For that I found that by adding all VLANs involved, it will work. I didn’t add the bridge because it didn’t seem to make any difference.
/ip dns
set allow-remote-requests=yes mdns-repeat-ifaces=VLAN1, VLAN2, VLAN3, VLAN4, VLAN5 servers=9.9.9.9
I guess the only issue would be the printers’ VLAN will now see broadcasts from other VLANs as well, but the firewall should drop any attempt to connect from the printer VLAN to another.