Patent ID: 7508939

Claim:
An image processing system comprising: a data storing device; a first device comprising: an encrypting unit configured to encrypt image data generated by reading an image on a document; a decryption-key storing unit configured to store a decryption key for decrypting the image data encrypted by the encrypting unit; and a transmitting unit configured to transmit the image data encrypted by the encrypting unit to the data storing device and not to transmit the decryrtion key stored in the decryrtion-key storing unit to the data storing device; and a second device comprising: a receiving unit configured to receive the image data encrypted by the encrypting unit from the data storing device; a decryption-key receiving unit configured to send a request for the decryption key to the first device and receive the decryption key sent from the first device in response to the request; a decrypting unit configured to decrypt the image data received by the receiving unit with the decryption key received by the decryption-key receiving unit; and a print-processing unit configured to perform print processing on the image data decrypted by the decrypting unit.