An image forming device is provided. The image forming device includes an image forming job performer, a wireless local area network (WLAN) module, a wireless personal area network (WPAN) module, and a controller. The WPAN module may determine a connection state of an external device using a WPAN, and the controller may receive a request from the external device through the WLAN module that is switched from a disabled state to an enabled state in accordance with the connection state of the external device using the WPAN, to control the image forming job performer.

An information processing apparatus includes a first controller that performs a process dependent on hardware having a function, a second controller that performs a process independent of the hardware, and a power controller that, if there is a reason to resume supply of power to the second controller when supply of power to the first and second controllers has been restricted or stopped, activates both the first and second controllers or only the second controller depending on the reason.

An information processing apparatus includes an output unit configured to output a direct current after converting an alternating current into the direct current and a power factor correction circuit configured to correct a power factor of the output unit, and is shifted from a first power state to a second power state. The information processing apparatus includes a detection unit configured to detect predetermined return request in the second power state, and a power control unit configured to shift, based on detection by the detection unit, the information processing apparatus from the second power state to a third power state in which processing corresponding to the predetermined return request is performable. The power control unit shifts the power state of the information processing apparatus from the third power state to the second power state after the processing is completed in the third power state.

A printing device, which is communicable with an external device via a cable and performs printing by using first power supplied from an external power supply, includes a volatile storage section having a volatile storage region, a nonvolatile storage section having a nonvolatile storage region, a printing mechanism that performs the printing, a connector that is coupled to the cable and is used for both communication with the external device and supply of second power from the external device, a communication control section that controls communication with the external device via the cable, and a control section, in which, when the first power is not supplied from the external power supply and when the second power is supplied from the external device via the cable, the communication control section, the control section, the volatile storage section, and the nonvolatile storage section operate using the supplied second power.

An image reading apparatus includes a support portion in contact with a mount surface on which the apparatus is mounted, an apparatus body portion that is provided so that a position thereof is changeable by being rotated relative to the support portion, and a discharge tray provided so as to be openable/closeable relative to the apparatus body portion, the discharge tray receiving the original. The apparatus body portion is switchable between a first position that is a position while not in use, and a second position in which reading of the original is performed. When the apparatus body portion is in the first position and when the discharge tray is opened from the closed state, the discharge tray switches the apparatus body portion from the first position to the second position.

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 information processing apparatus includes first and second controllers. The first controller executes processing dependent on an individual piece of hardware having a function and stores information indicating an operating state of an individual piece of hardware. The information is different according to the piece of hardware. The second controller executes processing which is not dependent on any piece of hardware. When the information processing apparatus is powered ON, the first controller sends the information stored in the first controller to the second controller. The second controller controls a corresponding piece of hardware by using the information sent from the first controller.

A computing device, such as a multifunction printer, may be configured to supply electrical power to one or more external devices. The computing device may include a user interface that can display information to a user, informing the user of the electrical power being supplied to the one or more external devices and/or of the total amount of electrical power that is available to the one or more external devices. The user may use the user interface to adjust the amount of power being supplied to each of the external devices, and the computing device may store information indicating the user's adjusted power levels and use the stored information to control the amount of power supplied to the external devices.

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 apparatus includes a control unit that switches a power state between first and second power states, the first power state being a state where one of a plurality of cores is usable and the other cores are unusable, the second power state being a state where the plurality of cores is unusable. Based on reception of the predetermined signal in a case where the apparatus is in the second power state, the control unit causes the apparatus to transition from the second power state to the first power state, and under a first condition to be met after the transition to the first power state in a case where the apparatus is in the first power state, the control unit causes the apparatus to transition from the first power state to the second power state.