Image forming apparatus that shifts into different power saving states and control method thereof
AssigneeCanon Kabushiki Kaisha
InventorAtsushi Hikichi
Life of this patent
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Abstract
When an image forming apparatus satisfies a condition to shift it to a power saving state, if a specific function that needs to respond to an inquiry from an external apparatus within a predetermined time is set, a power control unit shifts the image forming apparatus to a first power saving state in which power is supplied to a control unit configured to respond to the inquiry, and if the specific function is not set, shifts the image forming apparatus to a second power saving state in which no power is supplied to the control unit.
Claims38
An image forming apparatus comprising:
- a network controller configured to receive data via a network from an external device and transmit data via a network to an external device;
- a processor configured to process the data received by the network controller;
- an operation unit configured to receive, from a user, an instruction to enable a specific function regarding network transmission or reception;
- and
- a power control unit configured to, when a condition to shift the image forming apparatus to a power saving state is satisfied, if the specific function is enabled, shift the image forming apparatus to a first power saving state in which power is supplied to the processor and the network controller, and if the specific function is disabled, shift the image forming apparatus to a second power saving state in which no power is supplied to the processor and power is supplied to the network controller.
A control method to be executed in an image forming apparatus, the image forming apparatus including a network controller configured to receive data via a network from an external device and transmit data via a network to an external device, and a processor configured to process the data received by the network controller, the control method comprising:
- a receiving step of receiving, from a user, an instruction to enable a specific function regarding network transmission or reception;
- and
- a power control step of, when a condition to shift the image forming apparatus to a power saving state is satisfied, and if the specific function is enabled, shifting the image forming apparatus to a first power saving state in which power is supplied to the processor and the network controller, and if the specific function is disabled, shifting the image forming apparatus to a second power saving state in which no power is supplied to the processor and power is supplied to the network controller.
An image forming apparatus comprising:
- a network controller configured to receive data via a network from an external device and transmit data via a network to an external device;
- a processor configured to process the data received by the network controller;
- an operation unit configured to receive, from a user, an instruction to enable a specific function regarding network transmission or reception;
- and
- a power control unit configured to shift the image forming apparatus to a first power saving state in which power is supplied to the processor and the network controller, and shift the image forming apparatus to a second power saving state in which no power is supplied to the processor and power is supplied to the network controller,
- wherein the processor permits the power control unit to shift the image forming apparatus to the first power saving state and not shift the image forming apparatus to the second power saving state, in a case where the specific function is enabled,
- wherein the processor permits the power control unit to shift the image forming apparatus to the second power saving state in a case where the specific function is disabled.
Dependencies are inferred from the claim text.