A main control section 41 displays a prompt for cleaning of a discharge wire 15-2 to a user together with a prompt for maintenance work for replacement of a toner container (consumable item) 21 to the user on a display screen of a touch panel section 53, for example, when a replacement timing of the toner container (consumable item) 21 that has been reached is detected. The user who sees the content of the display carries out cleaning work of the discharge wire 15-2 at the same time with maintenance work for replacement of the toner container 21. This can contribute to an improvement in user convenience and also increase the operating capacity of an apparatus body to the extent possible.