You may be seeing a blank order printer screen when you go in to the app. The good news is that it isn't broken, your browser just needs more permissions.
Just click on the little red icon shown above, and allow popups. You may need to refresh the sceen but Order Printer should then work for you.
Cloudflare outage is affecting access to SOME Shopify Sites from Some locations.At approx. 5pm on 21/6/22 there was a Cloudflare outage. Cloudflare provides a performance/security layer for Shopify and many other websites.
UPDATE: here is Cloudflare’s incident report:
https://blog.cloudflare.com/cloudflare-outage-on-june-21-2022/