How to set up on-demand badge printing?

Hello,

on the introduction page (https://www.zoho.com/backstage/check-in-and-badging.html), it is stated that on-demand badge printing is possible, i.e. printing the corresponding badge after check in via scanning the attendee's QR code. How can I set this up? I could not find any documentation regarding this feature.

Thank you very much for the help!