You must print your Print at Home ticket on white A4 paper before the departure so you can show it to the onboard staff on request.
Please note: Print at Home tickets for DSB and Deutsche Bahn in Denmark and Germany
If you only need to travel with DSB or Deutsche Bahn in Denmark or Germany, you can use your smartphone or tablet to show your Print at Home ticket. If you are travelling outside of Denmark or Germany, you must print your Print at Home ticket (e-ticket) on white A4 paper before leaving. It is your responsibility to ensure that the screen of your smartphone/tablet is intact and that the Print at Home ticket can be properly inspected and scanned.