Patent attributes
An image forming apparatus includes: a cover; a power supply that supplies a drive system supply voltage and a control system supply voltage in an operating mode, and that supplies the control system supply voltage without supplying the drive system supply voltage in a power saving mode; an interlock switch including a first terminal that receives the drive system supply voltage, a second terminal that receives the control system supply voltage, and a third terminal connected to a line for supplying the drive system supply voltage to an image forming portion, the interlock switch connecting the first and third terminals when the cover is closed, and connecting the second and third terminals when the cover is open; and a detector that, when the control system supply voltage is applied to the line in the power saving mode, stores information indicating that the cover has been opened.
