Camera Device Incorporating A Print Roll Validation Apparatus

• US 20080165254A1
• Filed: 03/17/2008
• Published: 07/10/2008
• Est. Priority Date: 07/15/1997
• Status: Active Grant

• Current Assignee: Memjet Technology Ltd. (Memjet Limited)
• Original Assignee: Silverbrook Research Pty Limited
• Inventors: Silverbrook, Kia, Lapstun, Paul, Walmsley, Simon Robert
• Granted Patent: US 7,924,313 B2
• Time in Patent Office: Days
• US Class Current: 348/207.2
• CPC Class Codes: B41J 11/0005 Curl smoothing, i.e. smoothing down corrugated printing material, e.g. by pressing means acting on wrinkled printing material
• CPC Class Codes: B41J 2/14427 Structure of ink jet print heads with thermal bend detached actuators
• CPC Class Codes: B41J 2/15 for serial printing
• CPC Class Codes: B41J 2/16585 for paper-width or non-reciprocating print heads
• CPC Class Codes: B41J 2/17 characterised by ink handling cleaning by driving a fluid through the nozzles to the outside thereof B41J2/1652; for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing B41J11/0015
• CPC Class Codes: B41J 2/17513 Inner structure
• CPC Class Codes: B41J 2/17596 Ink pumps, ink valves
• CPC Class Codes: B41J 2002/041 Electromagnetic transducer
• CPC Class Codes: B41J 2202/21 Line printing
• CPC Class Codes: B82Y 30/00 Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: G06F 21/79 in semiconductor storage media, e.g. directly-addressable memories
• CPC Class Codes: G06F 21/86 Secure or tamper-resistant housings
• CPC Class Codes: G06F 2221/2129 Authenticate client device independently of the user
• CPC Class Codes: G06K 1/12 otherwise than by punching
• CPC Class Codes: G06K 1/121 by printing code marks applying code marks to labels B65C9/46; marking or coding completed packages B65B61/26
• CPC Class Codes: G06K 19/06037 multi-dimensional coding
• CPC Class Codes: G06K 7/14 using light without selection of wavelength, e.g. sensing reflected white light G06K7/10831 - G06K7/1097 take precedence
• CPC Class Codes: G06K 7/1417 2D bar codes
• CPC Class Codes: G11C 11/56 using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency
• CPC Class Codes: H04N 1/0044 for image preview or review, e.g. to help the user position a sheet
• CPC Class Codes: H04N 1/00965 : using a plug-in memory module, e.g. memory card, memory stick
• CPC Class Codes: H04N 1/2112 : using still video cameras
• CPC Class Codes: H04N 1/2154 : the still video camera incorporating a hardcopy reproducing device, e.g. a printer
• CPC Class Codes: H04N 1/32133 : on the same paper sheet, e.g. a facsimile page header
• CPC Class Codes: H04N 2101/00 : Still video cameras
• CPC Class Codes: H04N 2201/3222 : of processing required or performed, e.g. forwarding, urgent or confidential handling
• CPC Class Codes: H04N 2201/3261 : of multimedia information, e.g. a sound signal
• CPC Class Codes: H04N 2201/3264 : of sound signals
• CPC Class Codes: H04N 2201/3269 : of machine readable codes or marks, e.g. bar codes or glyphs
• CPC Class Codes: H04N 2201/3276 : of a customised additional information profile, e.g. a profile specific to a user ID
• CPC Class Codes: H04N 2201/328 : Processing of the additional information
• CPC Class Codes: H04N 23/00 : Cameras or camera modules comprising electronic image sensors; Control thereof
• CPC Class Codes: H04N 5/2628 : Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation

Abstract

A camera device includes an image sensor for capturing an image. A printer includes an ink ejection printhead and is configured to print the captured image. A replaceable print roll includes an ink reservoir section configured to supply ink to the printer for printing. A validation apparatus is configured to validate the replaceable print roll and enable the printer to print the captured image only subsequent to validation of the print roll.

Claims

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.