Patent ID: 8659796
Filing Date: 2014-02-25
Classification: H04N

Abstract:
1. An image forming apparatus comprising: a ground image producing unit which produces a ground image that determines a print position of an information image; a ground image printing unit which prints the ground image produced by the ground image producing unit, with a printing color material which does not have a sensitivity in a reading wavelength of a reading apparatus that reads the information image; and an information image printing unit which prints the information image at a print position that is determined by the ground image printed by the ground image printing unit, wherein the ground image comprises a first set of dots, the information image comprises a second set of dots, the second set of dots are guided by the first set of dots so that the width of each dot of second set of dots is not larger than a determined dot width, and each dot of the second set of dots is in contact with a plurality of dots of the first set of dots.