| 摘要 |
PROBLEM TO BE SOLVED: To provide electrophotographic toner having excellent fixing property in a high temperature region and excellent picture quality and stress resistance, and to provide a manufacturing method of the toner, an electrophotographic developer, and an image forming method. SOLUTION: The toner shows 100 to 140 shape factor SF1 and contains at least a binder resin, a colorant, a release agent, and a urethane compound expressed by general formulae (1) to (4). They are (1): R<SB>1</SB>-OCONH-C<SB>6</SB>H<SB>5</SB>-CH<SB>2</SB>-C<SB>6</SB>H<SB>5</SB>-NHCOO-R<SB>2</SB>, (2):C<SB>6</SB>H<SB>5</SB>-NHCOO-R<SB>1</SB>, (3):R<SB>2</SB>-OCONH-CH<SB>2</SB>-C<SB>6</SB>H<SB>5</SB>-CH<SB>2</SB>-NHCOO-R<SB>1</SB>, and (4):R<SB>2</SB>-OCONH-(CH<SB>2</SB>)<SB>6</SB>-NHCOO-R<SB>1</SB>. COPYRIGHT: (C)2007,JPO&INPIT
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