When one or more reused sheets each having a printed side and an unprinted side on which duplex printing has been performed are ejected onto an exit tray and then loaded onto a manual feed tray, an operation control section controls a sheet feed section to feed sheets alternately from a sheet feed cassette and the manual feed tray. The lead body at its proximal end may be coupled to a pulse generator, additional intermediate wiring, or other stimulation device. The first byte is a header record, and the remaining 3 bytes contain 24 instruction bits. The methods further include receiving the PCF package from the first or second entity, determining whether the PCF package is valid, and applying the modification to the PCF when it is determined the PCF package is valid. Such monomers can be polymerized with other monomers to form latex particulates.