Image forming apparatus and control method
AssigneeCanon Kabushiki Kaisha
InventorKoji Shimizu
Life of this patent
Estimating the term…
Abstract
An image forming apparatus, which operates in a normal mode or a power saving mode, includes a user interface, a first supply unit configured to supply power in the power saving mode, a second supply unit configured to supply power in the normal mode and supply no power in the power saving mode, a detection unit configured to detect abnormality of the second supply unit, and a control unit configured to perform control to supply power from the second supply unit to the user interface when the detection unit does not detect abnormality of the second supply unit and to start power supply from the first supply unit to the user interface when the detection unit detects abnormality of the second supply unit.
Claims12
An image forming apparatus which operates in a normal mode or a power saving mode comprising:
- a memory;
- a user interface;
- a first supply unit configured to supply power in the power saving mode;
- a second supply unit configured to supply power in the normal mode and supply no power in the power saving mode;
- a detection unit configured to detect abnormality of the second supply unit;
- and
- a control unit configured to perform control to supply power from the first supply unit to the memory and to supply power from the second supply unit to the user interface when the detection unit does not detect abnormality of the second supply unit, and, to stop power supply from the first supply unit to the memory and to start power supply from the first supply unit to the user interface, when the detection unit detects abnormality of the second supply unit.
A control method of an image forming apparatus, which operates in a normal mode or a power saving mode, including a memory, a user interface, a first supply unit configured to supply power in the power saving mode, and a second supply unit configured to supply power in the normal mode and supply no power in the power saving mode, the control method comprising:
- detecting abnormality of the second supply unit;
- and
- performing control to supply power from the first supply unit to the memory and to supply power from the second supply unit to the user interface when abnormality of the second supply unit is not detected, and performing control, to stop power supply from the first supply unit to the memory and start power supply from the first supply unit to the user interface, when abnormality of the second supply unit is detected.
Dependencies are inferred from the claim text.