| 摘要 |
PURPOSE:To accurately and simply grasp the state of an apparatus in the case of inspection and maintenance or repair by deciding the type of a detected malfunction, and historically storing a malfunction generating state regarding at least an operation of image forming means of the decided malfunctions. CONSTITUTION:The type of a malfunction generated as a history of malfunctions and a plant counting number when the malfunction occurs are stored in a malfunction history area 420b. As the malfunctions stored in the area 420b such as, for example, a sheet jam, no temperature rise of a heat roller 371, an improper image, a motor malfunction, etc., important factors are stored. The malfunctions not stored in the area 420b, include no sheet in cassettes 22, 30, 32, an open cover, no toner, etc. Malfunctions to be stored or not to be stored in the area 420b are decided by a CPU 401 at the time of a malfunction occurred, and only the history of the malfunction to be decided as the malfunction to be stored is selectively stored in the area 420b. |
