Airprint not working using Sophos XG WLAN with Bridge2LAN Configuration

Hi,

I configured a Sophos XG  with WLAN (Bridge2LAN Config).

So my mobile device is in the same LAN/Subnet as the printer is (yes: Airprint is enabled on it).

I simply start my browser on the mobile device and connect to the printers website. So connectivity with tcp is fine.

But airprint is not possible.

Any ideas? Should this be possible in general?

 

Thanks for hints!