An adddrop node for an optical network comprises a passive splitter to split an ingress signal from the network into a first ingress signal and a second ingress signal. A network repeater establishes a link with a network node using auto-negotiation techniques to establish a 100 Mbs link. The fixing device is configured to heat and fix the toner onto the sheet. Next, development is performed and the photosensitive material is formed in the three-dimensional face structure. In this manner, the medical device may \u201clearn\u201d to automatically adjust therapy in the manner desired by the patient as the sensed parameter of the patient changes.