Image processing and medium management with medium ID code image superimposed on document image

1. An image processing apparatus comprising:

a document image generating section that generates a document image based on a managed data in the apparatus;

a medium ID generating section that generates a medium ID for identifying a medium on which the document image is printed;

a correspondence information storing section that stores correspondence information by which the managed data and the medium ID are correlated with each other; and

an image output section that outputs an image in which a code image indicating the medium ID is superimposed on the document image,

wherein the medium ID includes identification information of an image forming apparatus and a serial number that is given to each medium on which printing is performed by the image forming apparatus.

2. The image processing apparatus according to claim 1 , wherein the managed data relates to an address that is registered as a destination address of the apparatus.

3. The image processing apparatus according to claim 1 , wherein the correspondence information includes a user ID for identifying a user who gives an order for printing of the document; and wherein the user ID is correlated with at least one of the managed data and the medium ID.

4. An image forming apparatus, comprising:

a document image generating section that generates a document image based on a managed data in the apparatus;

a medium ID generating section that generates a medium ID for identifying a medium on which the document image is printed; and

a print processing section that prints a code image indicating the medium ID and the document image on the medium;

wherein the code image and the document image are superimposed on each other,

wherein the medium ID includes identification information of the image forming apparatus and a serial number that is given to each medium on which printing is performed by the image forming apparatus.

5. The image forming apparatus according to claim 4 , wherein the print processing section prints the code image with an invisible toner.

6. The image forming apparatus according to claim 5 , wherein the print processing section prints an apparatus ID for identifying the apparatus with a visible toner.

7. The image forming apparatus according to claim 6 , wherein the medium ID does not include the apparatus ID.

8. The image forming apparatus according to claim 4 , wherein the print processing section prints the code image with a visible toner.

9. A medium managing method, comprising:

generating a document image based on a managed data in an apparatus, according to an instruction;

generating a medium ID for identifying a medium on which the document image is printed;

storing correspondence information in a storage device, the correspondence information correlating at least one of data relating to the instruction and the managed data with the medium ID;

printing a code image indicating the medium ID and the document image on the medium;

acquiring the medium ID from a code image printed on a prescribed medium; and

acquiring at least one of the data relating to the instruction and the managed data from the correspondence information stored in the storage device based on the medium ID wherein the code image and the document image are superimposed on each other,

wherein the medium ID includes identification information of an image forming apparatus and a serial number that is given to each medium on which printing is performed by the image forming apparatus.

10. The medium managing method according to claim 9 , wherein the medium ID acquiring step acquires the medium ID by detecting a manner of absorption of infrared light or ultraviolet light by the code image to read the code image and analyzing the code image.

11. The medium managing method according to claim 9 , wherein the medium ID acquiring step acquires the medium ID by detecting a manner of reflection or absorption of visible light by the code image to read the code image and analyzing the code image.

12. A storage medium readably by a computer, the storage medium storing a program of instructions executable by the computer to perform a function, the function comprising:

generating a document image based on a managed data in an apparatus, according to an instruction;

generating a medium ID for identifying a medium on which the document image is printed;

storing correspondence information in a storage device, the correspondence information correlating at least one of data relating to the instruction or the managed data with the medium ID; and

outputting an image in which a code image indicating the medium ID is superimposed on the document image,

wherein the medium ID includes identification information of an image forming apparatus and a serial number that is given to each medium on which printing is performed by the image forming apparatus.

13. The storage medium according to claim 12 , wherein the data relating to the instruction relate to a user who gives the instruction.

14. The storage medium according to claim 12 , wherein the managed data relate to a address that are registered as a destination address of the apparatus.