Abstract: A Schottky-barrier junction element 1 has a Schottky-barrier junction between an organic semiconductor 3 and an organic conductor 4. The inorganic semiconductor 3 is any one of nitride semiconductors, Si, GaAs, CdS, CdTe, CuInGaSe, InSb, PbTe, PbS, Ge, InN, GaSb, and SiC. A solar cell uses this Schottky-barrier junction element 1, with its photoelectric conversion section including the Schottky junction. A photoelectric conversion element uses this Schottky-barrier junction element 1, with its conversion section for interconverting light and electricity including the Schottky junction.

Abstract: A control circuit receives in advance data representing a predetermined number of copy jobs to be provided from a scanner and data representing a predetermined number of print jobs to be provided from external equipment, queues each of the copy jobs and print jobs on the basis of such data, and causes the jobs to be processed in a time divisional and parallel manner. Basically, the control circuit gives higher priority to the copy job. The priority order can be changed according to an instruction from a user interface. When a current job has been suspended, the control circuit causes a succeeding job to be processed earlier.