Data output apparatus
First Claim
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1. A data output apparatus comprising:
- a controller capable of performing operations of;
receiving data to be output;
storing the received data to be output in a data storing means;
outputting the received data to be output from the data storing means;
encrypting the received data to be output;
storing the encrypted data in the data storing means;
generating a decryption key for decrypting the encrypted data;
storing the generated decryption key in decryption key storing means;
transmitting the decryption key to an identification card which is carried by a manager of the data output apparatus and in which identification information identifying the manager is stored, and storing the decryption key in the identification card;
determining whether or not the identification information transmitted from the identification card is received;
decrypting the encrypted data using the decryption key stored in the decryption key storing means and permitting output processing based on the decrypted data, until a predetermined time has elasped since it was determined that the identification information was received;
deleting the decryption key stored in the decryption key storing means when the predetermined time has elapsed;
determining whether or not the decryption key transmitted with the identification information is received from the identification card after the decryption key is deleted;
storing the decryption key received from the identification card in the decryption key storing means;
decrypting the encrypted data using the decryption key stored in the decryption key storing means and permitting output processing based on the decrypted data, until a predetermined time has elapsed since the decryption key was stored; and
deleting the decryption key received from the identification card when the predetermined time has elapsed.
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Abstract
A request signal requesting a response signal from an ID card is transmitted, and, when a response signal is received, it is compared with the data identifying the manager, which is stored in advance, and a determination is made as to whether or not the data identifying the manager is received. If the data is determined to be received, a timer is set, and, if there is a job being held up, the output processing of the job is executed. When it is determined that a predetermined time has elapsed, outputting is notified to be restricted, thereafter outputting is prohibited.
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Citations
18 Claims
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1. A data output apparatus comprising:
a controller capable of performing operations of; receiving data to be output; storing the received data to be output in a data storing means; outputting the received data to be output from the data storing means; encrypting the received data to be output; storing the encrypted data in the data storing means; generating a decryption key for decrypting the encrypted data; storing the generated decryption key in decryption key storing means; transmitting the decryption key to an identification card which is carried by a manager of the data output apparatus and in which identification information identifying the manager is stored, and storing the decryption key in the identification card; determining whether or not the identification information transmitted from the identification card is received; decrypting the encrypted data using the decryption key stored in the decryption key storing means and permitting output processing based on the decrypted data, until a predetermined time has elasped since it was determined that the identification information was received; deleting the decryption key stored in the decryption key storing means when the predetermined time has elapsed; determining whether or not the decryption key transmitted with the identification information is received from the identification card after the decryption key is deleted; storing the decryption key received from the identification card in the decryption key storing means; decrypting the encrypted data using the decryption key stored in the decryption key storing means and permitting output processing based on the decrypted data, until a predetermined time has elapsed since the decryption key was stored; and deleting the decryption key received from the identification card when the predetermined time has elapsed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 15, 16)
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8. A data output apparatus comprising:
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means for receiving data to be output; data storing means for storing the received data to be outputted; first output means for outputting the stored data; means for encrypting the received data; means for storing the encrypted data in the data storing means; means for generating a decryption key for decrypting the encrypted data; decryption key storing means for storing the generated decryption key; means for transmitting the decryption key to an identification card which is carried by a manager of the data output apparatus and in which identification information identifying the manager is stored, and storing the decryption key in the identification card; means for determining whether or not the identification information transmitted from the identification card is received; means for decrypting the encrypted data using the decryption key stored in the decryption key storing means and permitting output processing based on the decrypted data, until a predetermined time elapses since it is determined that the identification information is received; means for deleting the decryption key stored in the decryption key storing means when the predetermined time has elapsed; means for determining whether or not the decryption key transmitted with the identification information is received from the identification card after the decryption key is deleted; means for storing the decryption key received from the identification card in the decryption key storing means; means for decrypting the encrypted data using the decryption key stored in the decryption key storing means and permitting output processing based on the decrypted data, until a predetermined time has elapsed since the decryption key was stored; and means for deleting the decryption key received from the identification card when the predetermined time has elapsed. - View Dependent Claims (9, 10, 11, 12, 13, 14, 17, 18)
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Specification