Overvågningsindretning og fremgangsmåde til overvågning af markeringen af elementer i et markeringshoved

摘要

The invention relates to a monitoring device for monitoring marking elements of a marking head. The inventive device is characterized in that it comprises a detector for recording detected information on the marking elements, and a control and evaluation unit that is adapted to determine whether the marking elements carry out marking operations based on the detected information. The invention further relates to a method for monitoring marking elements of a marking head.