To provide a toner achieving both of dot reproducibility and low temperature fixing properties and giving a uniform image without irregular density.
A toner is characterized in that: (1) the toner has an average circularity of 0.960 or more; (2) a tetrahydrofuran-soluble content of the toner at 25°C shows a number average molecular weight Mn (25°C) of 500 or more and 3000 or less measured by size-exclusion chromatography-multiangle laser light scattering (SEC-MALLS) photometry; (3) a ratio Mn (135°C)/Mn (25°C), which is a ratio of the number average molecular weight Mn (135°C) of an ortho-dichlorobenzene-soluble content of the toner at 135°C measured by SEC-MALLS to the number average molecular weight Mn (25°C) of the tetrahydrofuran soluble-content of the toner at 25°C measured by SEC-MALLS, is 25 or more and 50 or less.
MAGOME MICHIHISA
HASEGAWA YUSUKE
SANO TOMOHISA
HIROKO SHUICHI
SUZUMURA SADATAKA
NOMURA SHOTARO
OMORI ATSUHIKO
| JP2005266789A | 2005-09-29 | |||
| JP2006163120A | 2006-06-22 | |||
| JP2010091717A | 2010-04-22 | |||
| JP2005266789A | 2005-09-29 | |||
| JP2006163120A | 2006-06-22 | |||
| JP2010091717A | 2010-04-22 |
Sogo Kuroiwa