Fitzpatrick, Cellar, Harper & Scinto
Silica fine particle, toner, two-component developer and image forming method
The present invention provides a silica fine particle capable of preventing a charging member or an image bearing member from being contaminated with toner when the toner contains the particle and also capable of providing the toner with a stable developing property. The silica fine particle of the present invention has been hydrophobic treated. Furthermore, the particle has a peak in a range of 0.04 μm to 1 μm and a peak in the range of 1 μm to 100 μm in a volume-basis particle diameter distribution. The particle has a frequency ratio of 10 to 80% for the particles with a particle diameter of 0.04 μm to 1 μm to a total of all the peaks, and the particles has the frequency ratio of less than 16% for the particles with a particle diameters of 20 μm to 2000 μm to the total of all the peaks.
Canon Kabushiki Kaisha
G C C G G C G C
G03G C01P C09C G03G G03G C01P G03G C01P
inventional additional inventional inventional inventional additional inventional additional
Shuntaro Shinya Katsuyuki Yushi
Watanabe Yachi Nonaka Mikuriya