Patent ID: 8201824
Filing Date: 2012-06-19
Classification: B65H

Abstract:
1. An apparatus for transporting substrate media comprising: a nip assembly including a drive wheel operably connected to a drive mechanism for rotating the drive wheel, and an idler wheel disposed adjacent the drive wheel, the idler wheel and drive wheel forming a nip, the drive wheel and idler wheel being displaceable from each other to form a nip gap therebetween; and a nip force generator operably connected to the nip assembly, the nip force generator developing a first nip force upon entry of the substrate media into the nip and during formation of the nip gap and the nip force generator including a second force generating device for developing a second nip force subsequent to the first nip force, the second nip force being selectively applied to and removed from the nip assembly, the second nip force being greater than the first nip force, and wherein the idler wheel and drive wheel are displaced a distance from each other by the substrate media forming the nip gap, a second nip force is generated when the nip gap reaches a predetermined value corresponding to the thickness of the substrate media.