An image forming apparatus has an image former to form a toner image on an image bearer. The second fingerprint is computed over the stored data prior to receiving the request for use of the at least one program unit. The plate support maintains the dimensional and special positioning of the hoops as well as providing robust caroming characteristics. The first and second transfer circuits provide a high voltage to a second terminal of the first pump capacitor in the second time period, and provide the voltage of the second terminal of the first pump capacitor to a second terminal of the second pump capacitor in the third time period. Similar and related methods, apparatuses, and computer program products are also provided.