Temperature Control for Fusing Process of Laser Printers with Preview Action

In this paper, the temperature control of the fusing process of laser printers is considered. The central issue is how to determine the feedforward heater input along with the quick start-up strategy. The process is modeled to fit the preview control framework and the H
^∞
optimization is applied to obtain a controller. To overcome the modeling related problem that the preview signal (disturbance input) is not exogenous, a disturbance observer is introduced. The effectiveness of the proposed method is demonstrated though numerical simulations.