Abstract: An apparatus for processing, stacking and thereafter collecting printed forms, includes: a dual registering stacking interface, that stacks and accumulates forms in a stack or in a continuing feeding as separate forms; and, a sequencer merger that receives the forms from the dual registering stacking interface and directs the forms in a selected order to an output end. The output end communicates with an accumulator that feeds the forms to a folder. The folder thereafter feeds the forms to a collector to be held until called for by a subsequent downstream device, such as a mail inserter device. The resister, accumulator and collector are belt and/or roller driven devices, wherein the invention provides clutching assemblies for the transport belts and rollers in order to eliminate the streaking of the printed forms when idled forms are held stationary against the transport belts.