Critical parameters at base of tree Both control and noise parameters Example of control factors Roll radius Belt tension Example of noise factor: paper-to-paper friction,up-p C Don Clausing 1998 人 16881 Fig 8Critical parameters at base of tree • Both control and noise parameters • Example of control factors: – Roll radius – Belt tension • Example of noise factor: paper-to-paper friction, µp-p © Don Clausing 1998 16.881 Fig. 8