A detergent composition comprising 5 to 30% by weight of at least one kind of surfactant selected from the group consisting of an anionic surfactant, an amphoteric surfactant, and a nonionic surfactant based on the total weight of the composition; 0. The basic memory includes at least a first image memory area for a copying function and a second image memory area for a facsimile function. For the jobs susceptible to the parallel execution, the job execution managing module commands reregistration of such job to the job registration processing module.