Micro-convex Probe UST-987-7.5 Linear Probe UST-5542 Sector Probe UST-5298 Monochrome Printer SSZ-309 Color Printer SSZ-709 Gel Warmer Foot Switch AC Cable * Main unit: Poor video output (The screen displays green or purple) Check Mode (B/M/Color/Power/PW) Color Printer Internal Roller Deterioration (Printing Still Possible) Micro-convex Image Distortion Main Unit: Exterior Discoloration, Scratches Monitor Screen: Surface Scratches, Peeling Monochrome and Color Printers: Discoloration, Pen Markings All Three Probes: Handle and Connector Discoloration Gel Warmer: Internal Dirt