The invention relates to a processing apparatus (100) for processing tissue samples, having a control unit (140) configured to control at least one apparatus function of the processing apparatus (100) and a communication device (130, 135) configured to read at least one information item from a user identification unit (151, 152, 153) and convey the at least one information item to the control unit (140). The control unit (140) is configured to control the at least one apparatus function of the processing apparatus (100) based on the at least one information item conveyed.
