An image forming apparatus capable of printing a non-standard size image on a sheet of a size as desired by the user as possible, and preventing stoppage of printing the image even when there is no sheet of the size desired by the user in a sheet feeder. Such apparatus comprises a first substrate having first circuitry thereon. A slot is provided to the body and configured to detachably insert the card therein. The present invention further discloses an information content management system for executing the method of in formation content quick access. Updated CLI command information is derived by the adapter from the legacy CLI command information. The copolymers containing 2-hydroxyacid monomers can be synthesized via biosynthesis by the action of a PHA polymerase in a living cell.