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US 7,936,467 B2Granted
Data processing method suitable for system including image processing apparatus, system including image processing apparatus, image processing apparatus, data erasing method, program for implementing the method, and storage medium storing the program
AssigneeCanon Kabushiki Kaisha
InventorYukihiko Shimizu
Life of this patent
Estimating the term…
Abstract
There is provided an image processing apparatus which is capable of maintaining high data security and provide high convenience and high security. When a print request is transmitted from a client PC to a printer in a security print mode, a main CPU of the printer determines whether or not print data received from the client PC is for printing in the security print mode. If the print data received from the client PC is determined to be for printing in the security print mode, the main CPU causes all of the print data and temporary data to be erased from the hard disk.
Claims8
A data processing apparatus comprising:
- a registering unit configured to register a first processing mode in association with a first erasing method and to register a second processing mode in association with a second erasing method;
- a selecting unit configured to select one of the first processing mode and the second processing mode, the first processing mode comprising one of (i) a copy mode and (ii) a transmission mode, and the second processing mode comprising one of the copy mode and the transmission mode and being different from the first processing mode;
- a processing unit configured to process the image data in the one of the first processing mode and the second processing mode selected by the selecting unit;
- a specifying unit configured to automatically specify one of the first erasing method and the second erasing method, which is associated with the one of the first processing mode and the second processing mode selected by the selecting unit;
- and
- an erasing unit configured to erase the image data processed by the processing unit by using the one of the first erasing method and the second erasing method specified by the specifying unit,
- wherein each of the first erasing method and the second erasing method comprises a method for overwriting erasure data over data blocks of the image data stored in a storage unit, and
- wherein the second erasing method has a greater reliability than the first erasing method.
5 more elements
A data processing method comprising:
- registering a first erasing method in association with a first processing mode and registering a second erasing method in association with a second processing mode;
- selecting one of the first processing mode and the second processing mode, the first processing mode comprising one of (i) a copy mode and (ii) a transmission mode, and the second processing mode comprising one of the copy mode and the transmission mode and being different from the first processing mode;
- processing the image data in the one of the first processing mode and the second processing mode selected in the selecting step;
- automatically specifying one of the first erasing method and the second erasing method, which is associated with the one of the first processing mode and the second processing mode selected in the selecting step;
- and
- erasing the image data processed in the processing step by using the one of the first erasing method and the second erasing method specified in the specifying step,
- wherein each of the first erasing method and the second erasing method comprises a method for overwriting erasure data over data blocks of the image data stored in a storage unit, and
- wherein the second erasing method has a greater reliability than the first erasing method.
5 more elements
A non-transitory computer-readable storage medium storing a computer-executable program for executing a data processing method, the method comprising:
- registering a first erasing method in association with a first processing mode and registering a second erasing method in association with a second processing mode;
- selecting one of the first processing mode and the second processing mode, the first processing mode comprising one of (i) a copy mode and (ii) a transmission mode, and the second processing mode comprising one of the copy mode and the transmission mode and being different from the first processing mode;
- processing the image data in the one of the first processing mode and the second processing mode selected in the selecting step;
- automatically specifying one of the first erasing method and the second erasing method, which is associated with the one of the first processing mode and the second processing mode selected in the selecting step;
- and
- erasing the image data processed in the processing step by using the one of the first erasing method and the second erasing method specified in the specifying step,
- wherein each of the first erasing method and the second erasing method comprises a method for overwriting erasure data over data blocks of the image data stored in a storage unit, and
- wherein the second erasing method has a greater reliability than the first erasing method.
5 more elements
Dependencies are inferred from the claim text.