Robust control of tonal reproduction curves for the xerographic system

This paper considers the robust control of tonal reproduction curves. By modeling the xerographic tonal reproduction curve (TRC) plant as a polytopic system, this paper proposes a controller design method with the fastest convergence speed. In order to further improve the performance on color consistency, we propose a controller design method by assigning the closed-loop poles in a sector region. Furthermore, finite time stabilization method is used for improving the transient behavior. Our controller designs are based on linear matrix inequalities (LMIs), which can be computed efficiently. Simulation results are given to illustrate our result.