In an example embodiment, when an incoming video call associated with a hunt list is received, the call is first routed to recipients in the hunt list who are capable of receiving a video call. An image forming apparatus including an image bearing member configured to bear an electrostatic image thereon; a developing device configured to develop the electrostatic image with a developer including the toner to form a toner image on the image bearing member; and a transfer device configured to transfer the toner image onto a receiving material. In addition, the invention provides methods of making and using such cartridges. The current mirror circuit includes a third transistor, a fourth transistor coupled to the third transistor, and a fifth transistor coupled in series with the fourth transistor.