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US 2002/0160291 A1Published application
Electrostatic charge developing toner and image forming method using the same
AssigneeHitachi Printing Solutions, Ltd.
InventorsShigenori Yaguchi, Ryuuichi Shimizu, Junji Kobayashi, Tsuneaki Kawanishi, Nobuyoshi Hoshi
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Abstract
Electrostatic charge developing toner contains at least fixing resin, a coloring agent and wax. Wax having number average molecular weight of not higher than 600 is contained as a component of the wax. A volume average particle size of the toner is in a range of from 5 μm to 10 μm. Toner particles each having a particle size of not larger than 4 μm are contained by 10% or lower by number of the total number of toner particles.
Claims4
Electrostatic charge developing toner comprising:
- a plurality of toner particles, each containing:
- fixing resin;
- a coloring agent;
- and
- wax having a number average molecular weight of not higher than 600,
- wherein a volume average particle size of the toner is in a range of from 5 μm to 10 μm;
- and
- 10% or lower by number of the total number of toner particles have a particle size of not larger than 4 μm.
5 more elements
An image forming method comprising the steps of:
- developing an electrostatic charge latent image formed on an electrostatic charge holding member by use of a binary developer composed of toner and carrier;
- transferring the developed toner image onto a recording medium;
- cleaning up a residual toner image on the electrostatic charge holding member;
- and
- fixing the toner image transferred on the recording medium to obtain a recorded image;
- wherein used as toner is electrostatic charge developing toner comprising:
- a plurality of toner particles, each containing:
- fixing resin;
- a coloring agent;
- and
- wax having a number average molecular weight of not higher than 600,
- wherein a volume average particle size of the toner is in a range of from 5 μm to 10 μm;
- and
- 10% or lower by number of the total number of toner particles have a particle size of not larger than 4 μm.
11 more elements
Dependencies are inferred from the claim text.