In MUC I was denied access at first without card, so I asked the lady to print my status from their own terminal (then they know it's actual) and I was admitted without further ado.
Same in ZRH and FRA. No need to bother to print things yourself, just ask them to do it. In the case of MUC, also the BP did not show my status (yet).

However I must mention this is little over a year ago, maybe rules changed in the meanwhile. Still, it seemed to be the easiest way.