Toner

Details Toner Toner

2006-10-03

2006-10-03

Chapman, Mark A. (Department: 1756)

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

C430S108300, C430S108400, C430S109400, C430S111400

Reexamination Certificate

active

07115349

ABSTRACT:
Provided is toner which is excellent in developing property, transferring property, and fixing property, hardly affected by its surrounding, and has good endurance. The toner has a peak temperature of maximum endothermic peak in the range of 60 to 100° C. in an endothermic curve of differential scanning calorimetry (DSC) measurement;silica particles in the toner contain a titanium element; andthe silica particles satisfy the following expressions.in-line-formulae description="In-line Formulae" end="lead"?0.7≦(Ia1/Ib1)≦2.0in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?0.7≦(Ia2/Ib2)≦2.0in-line-formulae description="In-line Formulae" end="tail"?where Ia1represents a maximum intensity in the case of 2θ=25.3 deg, Ib1represents a mean intensity in the cases of 2θ=25.3 deg+2.0 deg. and of 2θ=25.3 deg.−2.0 deg., Ia2represents a maximum intensity in the case of 2θ=27.5 deg and Ib2represents a mean intensity in the cases of 2θ=27.5. deg+2.0 deg. and of 2θ=27.5 deg.−2.0 deg.

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