Image forming apparatus, control method, memory medium, and program
AssigneeCanon Kabushiki Kaisha
InventorToshihiro Kadowaki
Life of this patent
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Abstract
An image forming apparatus, a control method, a memory medium, and a program, in which further larger power saving can be accomplished are provided. An N/W interface circuit and a video interface circuit which are constructed so that a communication possible state and a communication impossible state can be independently controlled are provided. Transmission/reception situations of data to/from an external apparatus are monitored and a power supply and a non-power supply of those interfaces are controlled by a control unit, respectively.
Claims18
An image processing apparatus for connection to a printing apparatus having a first interface unit and a second interface unit and for receiving print data from a client computer via a network, said image processing apparatus comprising:
- a conversion unit adapted to convert the received print data into image data;
- a print instruction unit adapted to providing a print instruction to the second interface unit of the printing apparatus;
- and
- an output unit adapted to output the image data convened by said conversion unit to the first interface unit of the printing apparatus in accordance with supplying of power to the first interface unit which has been in a power-reduced status in response to the print instruction provided by said print instruction unit.
A printing apparatus for connection to an image processing apparatus which receives print data from a client computer via a network and converts the received print data into image data, said printing apparatus comprising:
- a first interface unit which is capable of receiving the image data convened by the image processing apparatus when the first interface unit is not in a power-reduced status;
- a power control unit adapted to place said first interface unit in the power-reduced status;
- and
- a second interface unit adapted to receive a print instruction from the image processing apparatus irrespectively of a status of power supply to said first interface unit,
- wherein said power control unit resumes supplying of power to said first interface unit which has been in the power-reduced status in response to reception of the print instruction by said second interface unit, so as to enable said first interface unit to receive the converted image data.
An image processing method for an image processing apparatus for connecting to a printing apparatus having a first interface unit and a second interface unit and for receiving print data from a client computer via a network, said image processing method comprising the steps of:
- convening the received print data into image data;
- providing a print instruction to the second interface unit of the printing apparatus;
- and
- outputting the image data convened in said converting step to the first interface unit of the printing apparatus in accordance with supplying of power to the first interface unit which has been in a power-reduced status in response to the print instruction provided in said print instruction providing step.
A printing method for a printing apparatus for connection to an image processing apparatus which receives print data from a client computer via a network and converts the received print data into image data, said printing method comprising the steps of:
- receiving the image data converted by the image processing apparatus when the first interface unit is not in a power-reduced status;
- placing the first interface unit in the power-reduced status;
- and
- receiving a print instruction from the image processing apparatus irrespectively of a status of power supply to the first interface unit,
- wherein supply of power to the first interface unit which has been in the power-reduced status is resumed in response to reception of the print instruction by the second interface unit, so as to enable the first interface unit to receive the convened image data.
A computer-readable medium storing a program of an image processing method for an image processing apparatus for connecting to a printing apparatus having a first interface unit and a second interface unit and for receiving print data from a client computer via a network, said image processing method comprising the steps of:
- convening the received print data into image data;
- providing a print instruction to the second interface unit of the printing apparatus;
- and
- outputting the image data convened in said converting step to the first interface unit of the printing apparatus in accordance with supplying of power to the first interface unit which has been in a power-reduced status in response to the print instruction provided in said print instruction providing step.
A computer-readable medium storing a program of a printing method for a printing apparatus for connection to an image processing apparatus which receives print data from a client computer via a network and converts the received print data into image data, said printing method comprising the steps of:
- receiving the image data converted by the image processing apparatus when the first interface unit is not in a power-reduced status;
- placing the first interface unit in the power-reduced status;
- and
- receiving a print instruction from the image processing apparatus irrespectively of a status of power supply to the first interface unit,
- wherein supply of power to the first interface unit which has been in the power-reduced status is resumed in response to reception of the print instruction by the second interface unit, so as to enable the first interface unit to receive the converted image data.
Dependencies are inferred from the claim text.