Those queries are coming from the PC right ?
You can stop them from querying Pi-hole by editing the local hosts file on the PC and add a new line with the IP of the printer/PC and the brwb068e66b532a.callard.local name:
EDIT: I turned some around to better reflect what needs to go in the hosts file in what order.
And as the traffic (if any) needs to go to the local host anyway, you could use the localhost address .127.0.0.1 instead of the PC IP
Is the printer connected to the PC or does it have its own network interface with IP ?