Patent ID: 8893617

Claim:
A printing method comprising the steps of: (a) dividing a to-be-printed surface of a to-be-printed object into a plurality of small to-be-printed surfaces, including a first small to-be-printed surface and a second small to-be-printed surface having boundaries that overlap one another with a prescribed width, and dividing a picture to be printed on said to-be-printed surface into small pictures to be printed on respective of said small to-be-printed surfaces; (b) creating a small developed picture by developing each of said small pictures into a plane; (c) putting ink corresponding to a first of the small pictures targeted for printing on the first small to-be-printed surface on a first small printing original plate and putting ink corresponding to a second of the small pictures targeted for printing on the second small to-be-printed surface on a second small printing original plate; (d) pressing a first small printing blanket against the first small printing original plate to transfer the ink corresponding to the first small picture to the first small printing blanket and pressing a second small printing blanket against the second small printing original plate to transfer said ink corresponding to the second small picture to the second small printing blanket; and (e) printing said first and second small pictures on respective of said first and second small to-be-printed surfaces by pressing each of said first and second small printing blankets against the first and second small to-be-printed surfaces respectively; wherein, in step (c), the ink is put on the respective first and second small printing original plates in the form of halftone dots with a distribution density or size of the halftone dots that are targeted for an area encompassed by the overlapping boundaries being smaller than a distribution density or size of the halftone dots that are targeted for an area not encompassed by the overlapping boundaries.