A print control device is provided with a management unit that receives and manages an instruction to execute processing, a processing unit that performs processing based on the instruction that is received, and a storage unit that stores an attribute information indicating an attribution of the instruction stored by the management unit and state information indicating a processing state of the processing unit in a nonvolatile storing unit using resources of the processing unit when processing based on the instruction is not executed.

A control apparatus includes an execution controller, a stop controller, a connection processing unit, a print job information holding unit, a resumption controller, and a power supply controller. The execution controller causes an image forming unit to execute a print job. When the restart of the image forming unit is detected, the stop controller causes the image forming unit to stop the print job currently in process. When the completion of restart of the image forming unit is detected, the connection processing unit connects the control apparatus and the image forming unit. After the connection, the resumption controller resumes execution of the print job being stopped by the stop controller based on the print job information held by the print job information holding unit. The power supply controller supplies power to the print job information holding unit even if a failure requiring a restart of the image forming unit occurs.

Various embodiments of the present disclosure provide techniques and mechanisms for improving user convenience by displaying the state of a battery of an image forming apparatus in more detail. In a case where the state of the battery is an abnormal state in which the battery is not chargeable, the image forming apparatus displays information indicating that the battery is in the abnormal state and information about a remaining capacity of the battery.

Various embodiments of the present disclosure provide techniques and mechanisms for improving user convenience by displaying the state of a battery of an image forming apparatus in more detail. In a case where the state of the battery is an abnormal state in which the battery is not chargeable, the image forming apparatus displays information indicating that the battery is in the abnormal state and information about a remaining capacity of the battery.

When a watchdog reset request is input, a power supply controller performs partial reset processing (resetting of a control circuit alone). When restarted by partial reset processing, the control circuit makes a non-volatile memory store a log of the stored contents of a volatile memory. After the log is stored, the control circuit transmits a system reset request to the power supply controller. Based on the system reset request, the power supply controller resets the control circuit, the non-volatile memory, the volatile memory, and reset targets.

The switching power supply apparatus including a transformer includes a detection unit configured to detect that the power supply apparatus malfunctions and a first holding unit configured to turn off a first switching element and holds the first switching element at turn-off condition, and when the detection unit detects that malfunction occurs, the first holding unit releases the first switching element from the turn-off condition at a timing when the control unit turns on the second switching element by a second control signal.

The printing apparatus of the present invention is a printing apparatus including: a power source switch that switches a power source to on or off; a control circuit configured to control supply or shutoff of power from the power source; and a measurement unit configured to measure a predetermined set time after the power source switch is switched to off, and the predetermined set time is set in accordance with processing being performed, and the control circuit performs control, in a case where the power source switch is switched to off, so as to shut off supply of power from the power source in accordance with completion of termination preparation of the processing being performed or completion of measurement of the predetermined set time in the measurement unit.

When a watchdog reset request is input, a power supply controller performs partial reset processing (resetting of a control circuit alone). When restarted by partial reset processing, the control circuit makes a non-volatile memory store a log of the stored contents of a volatile memory. After the log is stored, the control circuit transmits a system reset request to the power supply controller. Based on the system reset request, the power supply controller resets the control circuit, the non-volatile memory, the volatile memory, and reset targets.

The printing apparatus of the present invention is a printing apparatus including: a power source switch that switches a power source to on or off; a control circuit configured to control supply or shutoff of power from the power source; and a measurement unit configured to measure a predetermined set time after the power source switch is switched to off, and the predetermined set time is set in accordance with processing being performed, and the control circuit performs control, in a case where the power source switch is switched to off, so as to shut off supply of power from the power source in accordance with completion of termination preparation of the processing being performed or completion of measurement of the predetermined set time in the measurement unit.

The switching power supply apparatus including a transformer includes a detection unit configured to detect that the power supply apparatus malfunctions and a first holding unit configured to turn off a first switching element and holds the first switching element at turn-off condition, and when the detection unit detects that malfunction occurs, the first holding unit releases the first switching element from the turn-off condition at a timing when the control unit turns on the second switching element by a second control signal.