Abstract: A multifunctional machine as an image forming apparatus according to the present disclosure includes a speaker and can function as an output apparatus for use in a PA system such as an in-house public address system. During a period in which no sound is being outputted from the speaker, the multifunctional machine operates in a normal mode. Meanwhile, during a period in which a sound is being outputted from the speaker, the multifunctional machine operates in a low-speed mode that is lower in speed than the normal mode. This makes it easy to hear a sound that is outputted from the speaker. In a case where a drive mode of a drive controller switches from either of the normal and low-speed modes to the other at a timing during execution of a process according to a certain job, the drive mode switches after completion of the process.

Abstract: A multifunctional machine as an image forming apparatus according to the present disclosure includes a speaker and can function as an output apparatus for use in a PA system such as an in-house public address system. During a period in which no sound is being outputted from the speaker, the multifunctional machine operates in a normal mode. Meanwhile, during a period in which a sound is being outputted from the speaker, the multifunctional machine operates in a low-speed mode that is lower in speed than the normal mode. This makes it easy to hear a sound that is outputted from the speaker. In a case where a drive mode of a drive controller switches from either of the normal and low-speed modes to the other at a timing during execution of a process according to a certain job, the drive mode switches after completion of the process.

Abstract: In a shared management information area of the HDD, management information is recorded at the time of activating a multi-functional peripheral. The RAID controller copies the management information stored in the shared management information area in a mirroring information area. Then, at the time of activating the multi-functional peripheral, the RAID controller compares information of the mirroring information area of each HDD with the management information of the shared management information area, and when content thereof corresponds with each other, performs activation normally, and in the case of not corresponding with each other, judges the HDD as having a use history in the past and separates the HDD from a control target as well as performing warning display.