| 摘要 |
PROBLEM TO BE SOLVED: To decide the generation of a document copied by a copying machine having no means for reading additional information and to visibly decide the copy generation as well. SOLUTION: When printing out the images of a document or the like, concerning the additional information, the mechanically readable codes of different densities that collapse corresponding to the respectively different numbers of times of copying are generated by a first density code generating means 4, second density code generating means 5 and third density code generating means 6. Then, these codes are synthesized with image data by an image data synthesizing means 7 and printed out by an image output means 8. |
