Camera device incorporating a print roll validation apparatus

1. A camera device comprising:

an image sensor for capturing an image;

a printer, operatively connected to the image sensor, which includes an ink ejection printhead and is configured to print the captured image;

a replaceable print roll including an ink reservoir section configured to supply ink to the printer for printing; and

a validation apparatus configured to validate the replaceable print roll and enable the printer to print the captured image only subsequent to validation of the print roll.

2. A camera device as claimed in claim 1 , wherein the validation apparatus includes:

a first integrated circuit which is configured to generate a random number, reference information using the random number and a secret key; and

a control system which is configured to: receive the random number and the reference information from the first integrated circuit, receive validation information from a second integrated circuit positioned on the print roll whereby the validation information is generated by the second integrated circuit using the random number and the secret key, and compare the reference and validation information received from the integrated circuits to validate the print roll.

3. A camera device as claimed in claim 1 , wherein the validation apparatus includes:

a first integrated circuit which stores a first key, is configured to generate a random number, and is configured to generate encrypted information using the generated random number and the first key; and

a control system which is configured to: receive the encrypted information and random number from the first integrated circuit, send the encrypted information to a second integrated circuit positioned on the print roll, receive decrypted information from the second integrated circuit whereby the decrypted information is generated using the encrypted information and a second key, and compare the random number and decrypted information received from the respective integrated circuits to validate the print roll.

4. A camera device as claimed in claim 1 , wherein the ink reservoir section includes a plurality of bladder type containers for storing respective types of ink, a cavity being provided in the ink reservoir section for receiving an integrated circuit device storing information associated with the print roll.

5. A camera device as claimed in claim 4 , wherein the print roll further includes:

a pair of print media roll sections which can be fastened together to receive the ink reservoir section and for carrying a wound length of print media; and

a pair of outer casing sections which can be fastened together to receive the print media roll sections.

6. A print roll as claimed in claim 5 , wherein:

the print media roll sections can mate together by means of male portions mating with corresponding female portions; and

pinch rollers can clip into corresponding cavities defined in the outer casing sections.

7. A print roll as claimed in claim 4 , wherein the integrated circuit device is adhered in the cavity using adhesive.