Image forming apparatus
AssigneeToshiba Tec Kabushiki Kaisha
InventorYoji SATO
Life of this patent
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Abstract
An image forming apparatus includes a first printer configured to print on a medium using a first material, a second printer configured to print on the medium using a second material that turns invisible when a first condition is satisfied, and a controller configured to: control the first printer to print on the medium a first symbol that is machine-readable and associated with first information, and control the second printer to print a second symbol on the medium on which the first symbol has been printed. A composite symbol of the first and second symbols is machine-readable and associated with second information different from the first information.
Claims20
An image forming apparatus comprising:
- a first printer configured to print on a medium using a first material;
- a second printer configured to print on the medium using a second material that turns invisible when a first condition is satisfied;
- and
- a controller configured to:
- control the first printer to print on the medium a first symbol that is machine-readable and associated with first information, and
- control the second printer to print a second symbol on the medium on which the first symbol has been printed, wherein a composite symbol of the first and second symbols is machine-readable and associated with second information different from the first information.
An image forming apparatus comprising:
- a first printer configured to print on a medium using a first material;
- a second printer configured to print on the medium using a second material that turns invisible when a first condition is satisfied;
- a third printer configured to print on the medium using a third material that turns invisible when a second condition different from the first condition is satisfied;
- and
- a controller configured to:
- control the first printer to print on the medium a first pattern,
- control the second printer to print a second pattern on the medium on which the first pattern has been printed, wherein a first composite pattern of the first and second patterns is machine-readable and associated with first information, and
- control the third printer to print a third pattern on the medium on which the first and second patterns have been printed, wherein a second composite pattern of the first and third patterns is machine-readable and associated with second information different from the first information.
A printing medium comprising:
- a base;
- a first symbol that is printed on the base, formed of a first material, and machine-readable and associated with first information;
- and
- a second symbol that is printed on the base and formed of a second material turning invisible when a first condition is satisfied, wherein a composite symbol of the first and second symbols is machine readable and associated with second information different from the first information.
Dependencies are inferred from the claim text.