A terminal adapted to communicate via a communications system includes a memory capable of storing a plurality of ringing tones, where the plurality of ringing tones includes at least one set of at least two ringing tones associated with at least one event. Another object of the invention is to provide a highly-reliable, inexpensive, and nonvolatile memory device and a semiconductor device including the memory device. The conductive polymer can be used as a photoelectric conversion material for organic thin film transistors or organic light-emitting diodes. The cover has a first side support that is hingeably mounted to the frame, a second side support, and cross members substantially parallel to one another and horizontally spaced apart, mounted between the first side support and the second side support. A separate wideband filter may also be used. At least one of before and after the image forming operation, the bias controller applies the first bias to the first transfer electrodes without applying the second bias to between the developer holding body and the first transfer board, so as to transfer the development agent along the first developer transfer path without making the developer holding body hold the development agent.