The Canon FB6-6569-000 is a developer spacer roller designed for the toner supply section of compatible imageRUNNER machines. This component ensures the precise movement and positioning of the developer unit, supporting the consistent flow of toner during the printing process. It is built with a durable plastic outer ring and a metal ball bearing center to provide smooth rotation and long-term reliability. Weighing only 1 oz and measuring 1" x 1" x 0.15", this compact part is compatible with several models, including the iR 5000, 5020, 5570, 6000, 6020, 6570, 5055, 5065, and 5075. It serves as a direct replacement for part numbers FB2-6933-000 and FB2-8519-000, making it a practical choice for technicians maintaining these specific Canon office printers.