A rotatable pick engager for use with a printer for precisely timing the engagement of a paper stack with a pick roller during the picking of a sheet from the stack, greatly reducing top of sheet variability, skewing and multiple picks....http://www.google.fr/patents/US5326184?utm_source=gb-gplus-shareBrevet US5326184 - Apparatus and method for picking paper from a stack
Apparatus and method for picking paper from a stack
