Patent ID: 6854726

Claim:
An imaging apparatus including a print media feed system for advancing a sheet of print media in a sheet feed direction through a print zone, comprising: a motor including a motor shaft to which a pinion gear is attached; a feed roller including a shaft, said feed roller being positioned upstream from said print zone in relation to said sheet feed direction; a primary gear train including a first plurality of gears in meshed relation, said first plurality of gears including a first gear in mesh with said pinion gear and a second gear rigidly mounted to said shaft of said feed roller; a spring coupling having a first end and a second end, said first end being connected to said second gear of said primary gear train; a secondary gear train including a second plurality of gears in meshed relation, said second plurality of gears including a third gear in mesh with said pinion gear and a fourth gear rotatably mounted to said shaft of said feed roller for free rotation with respect to said shaft, said second end of said spring coupling being connected to said fourth gear of said secondary gear train.