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US 12,605,956 B2Granted
Image formation apparatus and method for controlling image formation apparatus
AssigneeToshiba Tec Kabushiki Kaisha
InventorsSadatoshi Oishi, Masakazu Kato
Life of this patent
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Abstract
Provided is an image formation apparatus that prevents use of a consumable that is not a genuine product. An image formation apparatus includes one or more processors. The one or more processors read, from an IC tag of an ink ribbon, ID information and a digital certificate based on the ID information or information other than the ID information. The one or more processors verify the digital certificate based on the ID information.
Claims6
An image formation apparatus comprising one or more processors to:
- read, from an IC tag of an ink ribbon, ID information and a digital certificate based on the ID information or information other than the ID information;
- and
- verify the digital certificate based on the ID information,
- wherein the digital certificate comprises encrypted information obtained by encrypting hashed ID information subjected to hashing.
1 more element
A method for controlling an image formation apparatus, comprising:
- reading, by one or more processors, from an IC tag of an ink ribbon, ID information and a digital certificate based on at least the ID information or information other than the ID information;
- and
- verifying, by the one or more processors, the digital certificate based on the ID information,
- wherein the digital certificate comprises encrypted information obtained by encrypting hashed ID information subjected to hashing.
1 more element
Dependencies are inferred from the claim text.