Oblon, McClelland, Maier & Neustadt, L.L.P.
Printing method
A printing method detects a density of a first black image to be printed in a first black color; determines, when the detected density is equal to a first density, a size of a first character to be embedded in the first black image to a first size, and prints the first character at the first size in a second black color with a transmissivity at a near infrared ray band that is different from that of the first black color; determines, when the detected density is lower than the first density, a size of the first character to a second size larger than the first size, and prints the first character at the second size in the second black color; and prints a region except a region in which the first character is to be printed in the first black image, in the first black color.
Kabushiki Kaisha Toshiba
H B B H H B H G
H04N B41M B41M H04N H04N B41M H04N G06K
inventional inventional inventional inventional inventional additional inventional inventional
Nobuki Takahisa Fumitoshi Shota
Nemoto Nakano Morimoto Kure