Image forming apparatus and controlling method for the same
AssigneeCanon Kabushiki Kaisha
InventorHiroshi Yamamizu
Life of this patent
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Abstract
An image forming apparatus includes an image forming unit configured to form an image on a sheet based on image data, a control unit configured to control driving of the image forming unit, and a power supply unit configured to, if a factor for shifting from a power saving state to a standby state is detected, supply power to the image forming unit and the control unit. If a first type of factor is detected as the factor in the power saving state, the power supply unit supplies power to the control unit and the image forming unit, and the control unit restricts the driving of the image forming unit. If an instruction to perform a function of forming an image on a sheet is accepted, the control unit cancels restriction of the driving of the image forming unit.
Claims20
An image forming apparatus comprising:
- an image forming unit configured to form an image on a sheet based on image data;
- a print control unit configured to control driving of the image forming unit;
- a power supply unit configured to supply power to the image forming unit and the print control unit;
- a reception unit configured to receive, from a user, a user instruction to shift from a power saving state where power is not supplied to the print control unit to a standby state where power is supplied to the print control unit;
- and
- a display unit configured to display a menu screen in accordance with a receipt of the user instruction,
- wherein if the reception unit receives the user instruction when the image forming apparatus is in the power saving state, the power supply unit supplies power to the print control unit, and the print control unit does not control the image forming unit to perform a preparation operation of the image forming unit, and
- wherein the print control unit controls the image forming unit to perform the preparation operation of the image forming unit based on the user selecting a function of forming an image on a sheet, displayed on the menu screen.
A method for controlling an image forming apparatus including an image forming unit configured to form an image on a sheet based on image data, a print control unit configured to control driving of the image forming unit, and a power supply unit configured to supply power to the image forming unit and the print control unit, the method comprising:
- receiving, from a user, a user instruction to shift from a power saving state where power is not supplied to the print control unit to a standby state where power is supplied to the print control unit;
- displaying a menu screen in accordance with a receipt of the user instruction;
- supplying power from the power supply unit to the print control unit if the user instruction is received when the image forming apparatus is in the power saving state;
- and
- performing, in accordance with a control of the print control unit, the preparation operation of the image forming unit based on the user selecting a function of forming an image on a sheet, displayed on the menu screen.
Dependencies are inferred from the claim text.