Automatic magazine speed control for document processing system

A document processing system, comprising:

• a feed magazine for supporting a stack of documents in generally upstanding on-edge relation and advancing the documents along a feed path with the documents disposed generally transverse to the feed path;
• feed magazine drive means for driving said feed magazine;
• a feeder assembly including a pivotal feeder belt frame and feeder belt means disposed on said frame to define a belt run for engaging the leading document in the stack and feeding the leading document in a direction generally transverse to the feed path;
• and
• document sensing and control means comprising a document sensing lever disposed in operational relationship to said feeder assembly, and being pivotally displaced by documents advanced by said feed magazine, for sensing the pressure exerted by documents against said document sensing lever and further comprising a variable speed controller circuitry means being electrically connected to said feed magazine drive means for adjustably controlling the speed of the advance of documents on the feed magazine as a function of said pressure and for providing adjustable minimum and maximum speeds at which said feed magazine is driven.