A packaging machine seals goods in blister shell moldings with a blister film. The packaging machine contains a first transport system for a blister film web, a second transport system for blister shell moldings, and a sealing apparatus, the effect of which is to connect a blister shell molding to a portion of the blister film web. A printing apparatus is provided for applying optical information to the blister film web. A dancing roller system is provided for motional decoupling and disposed between a position at which the printing apparatus prints on the blister film web and the sealing apparatus along the blister film. The printing apparatus and/or the first transport system for the blister film web contains an apparatus for insulating against occurring vibrations of the rest of the packaging machine at the position at which the printing apparatus prints on the blister film web.