Patent ID: 8097389

Claim:
A color toner for flash fusing comprising: a binder resin, a colorant, a leuco dye, a developer and a decolorizer, an absorbance of the color toner after photoirradiation at a wavelength of about 900 nm being smaller than an absorbance of the color toner before the photoirradiation at the wavelength of about 900 nm, wherein the leuco dye has a structure represented by the following Formula (I): wherein R 1 represents an alkyl group having 1 to 8 carbon atoms; R 2 represents an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 7 carbon atoms, a benzyl group that may have one or more substituent selected from a chlorine atom, a bromine atom and an alkyl group having 1 to 4 carbon atoms, or a phenyl group that may have one or more substituent selected from a chlorine atom, a bromine atom and an alkyl group having 1 to 4 carbon atoms; X 1 and X 2 each independently represent an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, a fluorine atom, a chlorine atom, a bromine atom, or a combination thereof; and m and n each independently represent an integer of 0 to 3; and wherein the developer is hexadecyl gallate, octadecyl gallate, eicosyl gallate, docosyl gallate, or a metal salt thereof, or 4,4′-dihydroxy-3,5′-diallyldiphenylsulfonyl.