Abstract: A synchronous copying and collating system 10 uses side-by-side original document and copy paper feed paths having reprographic portions 11 and 20 extending vertically downward. Endless belts 24 and 54 with drive perforations 26 driven by pinwheel drives 34 and 34c advance simultaneously at the same speed for moving original paper and copy paper synchronously in a continuous succession through their respective reprographic paths 11 and 20. Endless drive belts have alignment tabs 25 arranged to locate sheet boundaries at predetermined and regular intervals on endless belts to keep originals and copies registered with reprographic reading and imaging devices. These include fiber optic lens arrays 12, 14, 16, and 18 adjacent the original path for reading moving information, optical fibers for transferring the information to the copy paper, and reprographic imaging devices arranged for copying the information onto the moving copy paper.

Abstract: A recirculator feeds document sheets in order from a supply stack to the viewing window of a copier and back to the supply stack for as many times as desired to make a number of collated copies of a multi-page document. The recirculator is arranged above the copier window and has a sheet circulation path that is generally triangular. The supply stack is inclined along one side of the triangle, a second side of the triangle extends from the bottom of the supply stack across the copier window, and the third side extends from the copier window back up to the top of the supply stack. The device removes sheets successively from the bottom of the supply stack and advances them forward in order across the copier window and back up to the top of the supply stack.

Abstract: A recirculator feeds document sheets in order from a supply stack to the viewing window of a copier and back to the supply stack for as many times as desired to make a number of collated copies of a multi-page document. The recirculator is arranged above the copier window and has a sheet circulation path that is generally triangular. The supply stack is inclined along one side of the triangle, a second side of the triangle extends from the bottom of the supply stack across the copier window, and the third side extends from the copier window back up to the top of the supply stack. The device removes sheets successively from the bottom of the supply stack and advances them forward in order across the copier window and back up to the top of the supply stack.