Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Image formation method, electrophotographic toners, and printed matter
An image formation method for forming an image is proposed, which uses an image formation apparatus capable of performing (1) multi-color image formation and printing by superimposing toner images with different colors by use of a plurality of color toners with different colors, including at least a black toner, and (2) monochrome image formation and printing, using only a black toner, with a maximum transferable amount of each color toner onto the image being in a range of 4&times;10&#8722;3 kg/m2 to 8&times;10&#8722;3 kg/m2, wherein an image glossiness (GKC) obtained by the black toner in the maximum transferable amount thereof at the multi-color image printing, an image glossiness (GCC) obtained by each of the color toners other than the black toner in the maximum transferable amount thereof at the multi-color image printing, and an image glossiness (GKM) obtained by the black toner in the maximum transferable amount thereof at the monochrome image printing satisfy a particular relationship as described in the specification. In addition, the above toners and a printed matter prepared by this image formation method are proposed.
Ricoh Company, Ltd. Fujitsu Limited
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inventional inventional inventional
Yoshimichi Hachiroh Shinichi Masakazu Yoshimi Masae Osamu Takashi Hiroshi
Katagiri Tosaka Kuramoto Kinoshita Mizoguchi Nakamura Uchinokura Yamamoto Yamashita