Infrared absorbent, electrophotographic toner, and image forming apparatus using electrophotographic toner
AssigneeFuji Xerox Co., Ltd.
InventorYasushige Nakamura
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Abstract
The present invention provides an infrared absorbent having a light absorption peak in the infrared region and a crystallinity of 20 to 80%, an electrophotographic toner including the infrared absorbent, and an image forming apparatus having an electrophotographic image forming unit for forming a toner image on a recording medium with the electrophotographic toner and a fixing unit for fixing the toner image on the recording medium.
Claims18
A method for forming a modified infrared absorbent having a light absorption peak in the infrared region and a crystallinity of from 20 to 80%, the method comprising:
- adjusting the crystallinity of an original infrared absorbent that is at least one of a metal naphthalocyanine compound, an aminium compound and an immonium salt compound, by applying pressure to the original infrared absorbent or dissolving the original infrared absorbent in a solvent and precipitating the modified infrared absorbent while controlling a deposition speed thereof.
A method of forming an electrophotographic toner including forming a modified infrared absorbent having a light absorption peak in the infrared region and a crystallinity of from 20 to 80%, the method comprising:
- adjusting the crystallinity of an original infrared absorbent that is at least one of a metal naphthalocyanine compound, an aminium compound and an immonium salt compound, by applying pressure to the original infrared absorbent or dissolving the original infrared absorbent in a solvent and precipitating the modified infrared absorbent while controlling a deposition speed thereof.
A method for forming a toner image on a recording medium with an electrophotographic toner including forming a modified infrared absorbent having a light absorption peak in the infrared region and a crystallinity of from 20 to 80%, the method comprising:
- adjusting the crystallinity of an original infrared absorbent that is at least one of a metal naphthalocyanine compound, an aminium compound and an immonium salt compound, by applying pressure to the original infrared absorbent or dissolving the original infrared absorbent in a solvent and precipitating the modified infrared absorbent while controlling a deposition speed thereof;
- and
- fixing the toner image on the recording medium.
Dependencies are inferred from the claim text.