A sub-assembly of a document processor that routes at least one document from an input hopper, along a document path and to an output bin is disclosed. The document processor includes a flag movably-arranged within the input hopper to/from a closed orientation and an open orientation; a rod fixed to and extending from the flag, wherein the rod includes an outer surface; a cam member including a camming surface, wherein the camming surface is communicatively-coupled to the outer surface of the rod; a driven shaft connected to the cam member, wherein the cam member further includes a one-way clutch, wherein the driven shaft extends through the one-way clutch; and a feed motor connected to the driven shaft. A method for operating the sub-assembly is also disclosed.