50 ILCS 520/5: Definition.

As used in this Act, "printing" means and includes all processes and operations involved in printing and any type of photographic reproduction or other duplicating process, including but not limited to letterpress, offset, and gravure processes, the multilith method, any type of photographic or other duplicating process, and the operations of composition, platemaking, presswork, and binding. "Printing" also means the end products of those processes, methods, and operations. "Printing" does not include photocopiers used in the course of normal business activities, photographic equipment used for geographic mapping, or preprinted matter or printed matter that is commonly available to the general public from vendor inventory.