Toner, method of manufacturing toner, developer, two-component developer, developing device, and image forming apparatus
AssigneeSharp Kabushiki Kaisha
InventorsYoritaka Tsubaki, Hiroshi Onda, Yasuo Imura
Life of this patent
Estimating the term…
Abstract
A toner, a developer, a two-component developer, a developing device and an image forming apparatus are provided. In the image forming apparatus, images are formed with a developer that fills a developing tank of the developing device. The developer includes the toner containing at least a binder resin, a colorant, and a release agent, the release agent having an acid value of less than 4 mgKOH/g and in which an amount of the release agent exposed on a surface of toner is 0.5% by weight or more and 2.5% by weight or less of a total amount of the toner.
Claims15
A toner comprising at least a binder resin, a colorant, and a release agent,
- wherein an acid value of the release agent is less than 4.0 mgKOH/g, and
- an amount of the release agent exposed on a surface of the toner is 0.5% by weight or more and 2.5% by weight or less of a total amount of the toner.
The method of claim 8, wherein a weight ratio of the second toner particle group mixed in the mixing step is 5 parts by weight or more and 120 parts by weight or less to 100 parts by weight of the first toner particle group.
The method of claim 8, wherein a weight ratio of the second toner particle group mixed in the mixing step is 5 parts by weight or more and 70 parts by weight or less to 100 parts by weight of the first toner particle group.
Dependencies are inferred from the claim text.