An information processing apparatus includes a power processor, an interface, a detector that detects at least one of a voltage value and a current value on an electric power line that connects the power processor and the interface, and a controller. The controller transmits warning information to an external device via the interface in a case where a detection value of the detector indicates an abnormal value while electric power is supplied to the external device via the interface.

An image forming apparatus has a controller with a first input terminal configured to receive a first signal indicating a state of a first opening/closing portion, a second input terminal configured to receive a second signal indicating a state of a second opening/closing portion, and a third input terminal configured to receive a third signal indicating a state of the first opening/closing portion and the second opening/closing portion. The controller is configured to delay a first notification of an open state of the first opening/closing portion and a second notification of an open state of the second opening/closing portion for a predetermined period after any one of the first signal, second signal, or third signal initially indicates an open state.

An image forming apparatus reads a document mounted on a document positioning section by using an image reading section, and forms an image of the document on a sheet by using an image forming section. The sheet subjected to the image formation processing is mounted on a discharge tray via a discharge section. The image forming apparatus includes an operation unit that has a touch panel and that protrudes from a front portion of the image reading section, and a power button that is a hardware button provided on a back side of the operation unit and on a front portion of the image reading section.

A image forming apparatus includes a power control unit, an operation mode control unit, and a first timer. The power control unit performs control so as to switch between a normal power state for supplying the operation power supply voltage to the image forming unit, a first power saving state for not supplying the operation power supply voltage to the image forming unit, and a second power saving state having less power consumption than the first power saving state. The operation mode control unit performs control so as to switch a normal mode corresponding to a normal power state, a first power saving mode corresponding to a first power saving state, and a second power saving mode corresponding to a second power saving state.

An image processing apparatus includes a fluctuation generating portion, and a connection identifying portion. The fluctuation generating portion fluctuates an output power of a power supply portion that supplies power to a load. The connection identifying portion identifies a connection relationship between the power supply portion and the load based on a correlative relationship between a fluctuation of the output power and a fluctuation of the power supplied to the load.

An image forming apparatus includes a display, a capacitive touch panel, a transporter, an image forming unit, a power supplier, the touch panel, the transporter, and the image forming unit, and a controller, the touch panel, the transporter, the image forming unit, and the power supplier, wherein the controller is configured to control a first mode in which the power supplier is controlled so that power is supplied to the display, the touch panel, the transporter, and, the image forming unit and a second mode in which the power supplier is controlled so that a power supply to the display, the transporter, and the image forming unit is restricted and power is supplied to the touch panel, and wherein an amount of power supplied to the touch panel in the second mode is smaller than an amount of power supplied to the touch panel in the first mode.

An information processing apparatus for making state transition between a plurality of power states including a suspend state includes one or more controllers having one or more processors and one or more memories. The one or more controllers is configured to function as a control unit configured to, in a case where a state transition to the suspend state fails, inhibit the state transition to the suspend state and then perform a shutdown.

An image forming apparatus has a controller with a first input terminal configured to receive a first signal indicating a state of a first opening/closing portion, a second input terminal configured to receive a second signal indicating a state of a second opening/closing portion, and a third input terminal configured to receive a third signal indicating a state of the first opening/closing portion and the second opening/closing portion. The controller is configured to delay a first notification of an open state of the first opening/closing portion and a second notification of an open state of the second opening/closing portion for a predetermined period after any one of the first signal, second signal, or third signal initially indicates an open state.

A substrate includes a primary circuit; a secondary circuit; and a ground (GND) patterns. In a path between the primary circuit and the secondary circuit without passing through the GND pattern, reinforced insulation is provided between the primary circuit and the secondary circuit. In a path between the primary circuit and the secondary circuit through the GND pattern, one of 1) a combination of reinforced insulation and functional insulation and 2) a combination of basic insulation, additional insulation, and functional insulation is provided between the primary circuit and the secondary circuit.

An image forming apparatus, includes: a media sensor that detects a sheet type; a fixer that fixes the image on a sheet; a storage that stores a fixing temperature for each sheet type; and a hardware processor that controls power supplied to the fixer by pulse-width modulation (PWM) control and controls a temperature of the fixer to the fixing temperature corresponding to the sheet type detected by the media sensor.