A control device is configured to control an image forming apparatus to form an image on a recording medium. The control device includes circuitry configured to acquire a consumed direct current (DC) power value that is a DC power value consumed in the image forming apparatus, estimate a characteristic of the consumed DC power value in a period in which an image is formed on at least one recording medium, and determine a limit value of fixing power to be supplied to a fixing device of the image forming apparatus that fixes an image on a recording medium, to have cyclicity corresponding to the characteristic of the consumed DC power value.

A power supply controlling apparatus includes a first power supply unit that supplies DC power to a load using power supplied from a commercial power supply, a power detecting unit that detects an input voltage and an input current input from the commercial power supply to the first power supply unit, and a control unit that controls the input current to be a constant current having an upper limit current value in response to the input voltage by controlling DC power supplied to the load from the first power supply unit based on the input voltage and the input current which are detected by the power detecting unit.

The electronic apparatus includes a controller that performs control of the entire apparatus and a UI module that performs a display for a user interface by using an image data supplied from the controller. Then, the controller includes a first processor and the UI module includes a second processor, respectively. Then, the controller diagnoses an abnormality of at least the first processor at the time of boot of the electronic apparatus. Then, the UI module diagnoses an abnormality of the display and notifies, in a case where an abnormality of the display is detected at the time of boot of the electronic apparatus, the controller of the detected abnormality by communication between the second processor and the first processor.

A printing apparatus supporting USB type-C includes: a USB type-C interface configured to support a connection with an external device; a printing unit configured to perform printing; and a controller configured to control the supply of power to the external device. The controller checks a reception power received from an external power source, predicts the estimated power consumption of at least one of the printing apparatus and the external device, determines a supply power to be transmitted to the external device based on the reception power and the estimated power consumption, and transmits the supply power to the external device via the USB type-C interface.

Provided is an image reading apparatus including: an image reading unit configured to output image data representing an image read from an original; and an image control board configured to acquire the image data by controlling an operation of the image reading unit. When a shading error occurs, the image control board determines a part that has caused the shading error by determining whether or not a power supply voltage is being normally supplied to the image reading unit, determining whether or not a light source is normally emitting light, determining whether or not a memory is normally operating, and determining whether or not data output from the image reading unit is normally stored in the memory.

The present invention provides an image forming apparatus and a malfunction diagnosis method of the image forming apparatus. The image forming apparatus stores a diagnosis target of a malfunction in association with a diagnostic item corresponding to the diagnosis target, and in a case where an abnormality is detected, the apparatus specifies the diagnosis target corresponding to the abnormality, executes a malfunction diagnosis process in accordance with the stored diagnostic item in association with the specified diagnosis target, and displays information regarding a malfunction parts determined to be a malfunction by the malfunction diagnosis process. The apparatus executes a malfunction diagnosis processes of a different type depending on whether or not a sheet remaining in the image forming apparatus is detected.

An information processing apparatus includes a control unit and an operation unit. The control unit is configured to generate image data for image display. The operation unit includes a display unit, and is configured to display a screen on the display unit based on the image data generated by the control unit and to accept user operation. The control unit executes first processing for identifying, based on a state of signal output from the operation unit, whether a malfunction has occurred in one of the control unit and the operation unit. The operation unit executes, independently of the first processing by the control unit, second processing for identifying, based on a state of signal output from the control unit, whether the malfunction has occurred in the control unit or in the operation unit.

An information processing apparatus includes an interface and a controller. The interface performs power delivery and communication with an external apparatus. The controller performs: storing, in a memory, history information relating to power delivery performed with the external apparatus through the interface, the history information including identification information of the external apparatus and a power role of at least one of the information processing apparatus and the external apparatus, the identification information and the power role being stored in association with each other, the power role being one of a power source of supplying power and a power sink of receiving power; and in response to detecting connection of the external apparatus through the interface, determining the power role of the information processing apparatus based on the identification information of the external apparatus connected through the interface and on the history information stored in the memory.

An information processing apparatus which is capable of preventing unintended power abnormality data arising from remaining electronic charge being written into a nonvolatile memory. The nonvolatile memory stores information indicating that an output voltage of the power supply device has become equal to or lower than a threshold value. Power is controlled to be supplied from a power supply device to a processor in accordance with an operation on a power switch received in a state where no power was supplied to the processor, and power is controlled to be supplied from the power supply device to the processor in accordance with the information stored in the nonvolatile memory. Writing of the information into the nonvolatile memory is enabled in accordance with input of a predetermined signal output from the processor to which the power is supplied.

An information processing apparatus includes a control unit, a storage unit configured to store a program to be executed by the control unit, a verification unit configured to read the program from the storage unit and to verify the read program, and a light-emitting unit configured to be changed to a predetermined light-emitting state or to be changed from the predetermined light-emitting state based on a result of the verification of the program by the verification unit.