abstract |
PROBLEM TO BE SOLVED: To be compatible with a low-temperature fixing system and excellent in all offset resistance and heat-resistant storage stability. Especially, it can be used repeatedly for a long period of time without causing aggregation of toners, and it has fluidity, transferability and fixability. The present invention provides a toner that does not contaminate a fixing device and an image with extremely little deterioration, can form a stable image with no transfer omission on any transfer medium with good reproducibility. SOLUTION: A toner comprising a toner material, wherein Tma (° C.) is a 1/2 outflow temperature of the toner by a high-pressure flow tester, and the high-temperature flow tester of the melt-kneaded product of the toner is used. When the half outflow temperature is Tmb (° C.), the toner satisfies the following formula: 0 ° C. ≦ ΔTm (where ΔTm represents Tma−Tmb) ≦ 20 ° C. and Tma is 130 to 200 ° C. is there. The following formula is preferable: 5 ° C. ≦ ΔTm (where ΔTm represents Tma−Tmb) ≦ 20 ° C. and Tma is 130 to 200 ° C. [Selection figure] None |