Image formation system adding pattern information to print image based on read pattern information from medium surface for determining if medium is original

An image formation system comprising:

• a processor, wherein the processor function as:
• a medium-pattern-information-read-unit that reads pattern information of a surface of a medium;
• a pattern-information-image-creation-unit that creates a pattern information image based on the read pattern information;
• a print unit that adds the pattern information image to a print image to be printed on the surface of the medium and prints the print image on the medium;
• and,
• a pattern-information-read-area-detection-unit that detects a pattern-information-read-area from the print image, the pattern-information-read-area including an area where an image is not printed and an area where an image having so low a density that the pattern information can be read is printed,
• wherein the medium-pattern-information-read-unit reads pattern information in a plurality of areas on the surface of the medium, and
• the pattern-information-image-creation-unit creates the pattern information image based on the pattern information in an area selected from the plurality of areas, the area ma matching the pattern-information-read-area detected by a pattern-information-read-area-detection-unit.

An image formation system comprising:

• a processor, wherein the processor function as:
• a medium-pattern-information-read-unit that reads pattern information of a surface of a medium;
• a pattern-information-image-creation-unit that creates a pattern information image based on the read pattern information;
• and
• a print unit that adds the pattern information image to a print image to be printed on the surface of the medium and prints the print image on the medium;
• and,
• a medium-pattern-information-reader capable of reading pattern information in a plurality of areas in a main scanning direction of the surface of the medium,
• wherein the medium-pattern-information-read-unit can read the pattern information in an arbitrary area on a plane along the surface of the medium in the medium moving in a subscanning direction relative to the medium-pattern-information-reader.

An image formation system comprising:

• a processor, wherein the processor function as:
• a medium-pattern-information-read-unit that reads pattern information of a surface of a medium;
• a pattern-information-image-creation-unit that creates a pattern information image based on the read pattern information;
• and
• a print unit that adds the pattern information image to a print image to be printed on the surface of the medium and prints the print image on the medium;
• and,
• a medium-pattern-information-reader placed at a given position in a main scanning direction of the medium,
• wherein the medium-pattern-information-read-unit can read the pattern information in a plurality of areas along a subscanning direction of the surface of the medium in the medium moving in the subscanning direction relative to the medium-pattern-information-reader.