| 摘要 |
PROBLEM TO BE SOLVED: To provide electrophotograph printing toner that is superior in static charging, dispersibility, color and high in image density, and to provide an electrophotograph printing method that uses it. SOLUTION: This electrophotograph printing method forms electrostatic latent images on a photoconductor and develops the images, by using the toner whose coloring agent contains the dye which satisfies Formula (1), where R1-R7 are independently and respectively H, C<SB>n</SB>H2<SB>n+1</SB>, F, Cl, OH, SO<SB>3</SB>H, NHCOCH<SB>3</SB>, NHCONH<SB>2</SB>, OCH<SB>3</SB>, SO2C<SB>2</SB>H<SB>4</SB>OSO<SB>3</SB>H, NHC<SB>6</SB>H<SB>4</SB>SO<SB>3</SB>H, or NH<SB>2</SB>, and n is an integer of 1-5, or Formula (2), where M represents a metal, R1-R7 are independently and respectively H, C<SB>n</SB>H<SB>2n+1</SB>, F, Cl, OH, SO<SB>3</SB>H, SO<SB>3</SB>N<SB>a</SB>, SO<SB>2</SB>NH<SB>2</SB>, SO<SB>2</SB>NHCN, NHCONH<SB>2</SB>, OCH<SB>3</SB>, NH<SB>2</SB>, or COOH, and n is an integer of 1-5, then presses them by using a transfer roller and transfers the toner images to a printing cloth. COPYRIGHT: (C)2007,JPO&INPIT
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