System identification and model predictive control design of toner supply system of photocopier

This paper deals with modeling and control systems design of a toner supply system of photocopiers. It is important to keep an image of the photocopier constant during printing. To realize the requirement, it is necessary to control the amount of the toner attracting to the paper. This paper proposes a design method of the toner supply control system. First, the printing process is divided to two components, that is, the toner supply system and development system. System identification method is applied to these systems in consideration of physical characteristics of the systems. Second, the toner supply control system is designed by model predictive control (MPC). Finally, the effectiveness of the proposed method is examined by using the experimental data using a photocopier.