An idler roller assembly in an imaging system including a sheet material
transport roller system having drive rollers and idler rollers. The idler
roller assembly includes a plurality of idler rollers. A plurality of
springs are connected to apply respective normal forces to the idler
rollers. Pivoting linkages are provided to equalize the normal forces
applied to the respective rollers by respective springs. In an embodiment,
the plurality of idler rollers includes a first idler roller and a second
idler roller. The plurality of springs includes a first spring connected
to apply a normal force to the first idler roller and a second spring
connected to apply a normal force to the second idler roller. The pivoting
linkage includes a first pivoting lever member connected between the first
spring and the second spring.