Image-forming color toner, developing agent, image-forming apparatus, toner container, image-forming process cartridge and image-forming process

A developing agent, comprising an image-forming color toner,

• wherein the image-forming color toner comprises:
• a colorant;
• a resin (A);
• a modified resin (B);
• and
• wax (a) as a mold releasing agent;
• in which the image-forming color toner has a phase separated structure having the modified resin (B) as a domain in the resin (A) as a continuous phase, and wax (a) being effectively contained in the modified resin (B),
• and the modified resin (B) comprises a wax part formed of the wax component (b), and a modified part having a vinyl monomer unit and an average ester group concentration of 8% by weight to 30% by weight.

A toner container comprising an image-forming color toner therein,

• wherein the image-forming color toner comprises:
• a colorant;
• a resin (A);
• a modified resin (B);
• and
• wax (a) as a mold releasing agent;
• in which the image-forming color toner has a phase separated structure having the modified resin (B) as a domain in the resin (A) as a continuous phase, and wax (a) being effectively contained in the modified resin (B),
• and the modified resin (B) comprises a wax part formed of the wax component (b), and a modified part having a vinyl monomer unit and an average ester group concentration of 8% by weight to 30% by weight.

An irnage-forming apparatus, comprising:

• a latent image bearing member;
• a charger which charges the latent image bearing member;
• a light irradiator which irradiates a light imagewisely to the latent image bearing member charged by the charger, so as to form a latent image;
• a developer in which a toner container, for supplying an image-forming color toner to the latent image, is installed, and which develops the latent image to form a developed image;
• a transfer which transfers the developed image formed by the image-forming color toner to a transfer medium;
• and
• a fixer which fixes the developed image by a contact with a terminated or endless belt;
• wherein the image-forming color toner comprises:
• a colorant;
• a resin (A);
• a modified resin (B);
• and
• wax (a) as a mold releasing agent;
• in which the image-forming color toner has a phase separated structure having the modified resin (B) as a domain in the resin (A) as a continuous phase, and wax (a) being effectively contained in the modified resin (B),
• and the modified resin (B) comprises a wax part formed of the wax component (b), and a modified part having a vinyl monomer unit and an average ester group concentration of 8% by weight to 30% by weight.

An image-forming apparatus, comprising:

• a latent image bearing member;
• a charger which charges the latent image bearing member;
• a light irradiator which irradiates a light imagewisely to the latent image bearing member charged by the charger, so as to form a latent image;
• a developer which supplies an image-forming color toner to the latent image, and which develops the latent image to form a developed image;
• a transfer which transfers the developed image formed by the image-forming color toner to a transfer medium;
• and
• a fixer which fixes the developed image by a contact with a terminated or endless belt;
• wherein the image-forming color toner comprises:
• a colorant;
• a resin (A);
• a modified resin (B);
• and
• wax (a) as a mold releasing agent;
• in which the image-forming color toner has a phase separated structure having the modified resin (B) as a domain in the resin (A) as a continuous phase, and wax (a) being effectively contained in the modified resin (B),
• and the modified resin (B) comprises a wax part formed of the wax component (b), and a modified part having a vinyl monomer unit and an average ester group concentration of 8% by weight to 30% by weight.

An image-forming process, comprising the steps of:

• charging a latent image bearing member;
• irradiating a light imagewisely to the latent image bearing member charged by the charging step, so as to form a latent image;
• developing the latent image by supplying an image-forming color toner to develop the latent image to form a developed image;
• and
• transferring the developed image formed by the image-forming color toner to a transfer medium, and fixing the developed image by a contact with a terminated or endless belt;
• wherein the image-forming color toner comprises:
• a colorant;
• a resin (A);
• a modified resin (B);
• and
• wax (a) as a mold releasing agent;
• in which the image-forming color toner has a phase separated structure having the modified resin (B) as a domain in the resin (A) as a continuous phase, and wax (a) being effectively contained in the modified resin (B),
• and the modified resin (B) comprises a wax part formed of the wax component (b), and a modified part having a vinyl monomer unit and an average ester group concentration of 8% by weight to 30% by weight.

An image-forming process cartridge, comprising:

• a developing apparatus containing an image-forming color toner, which supplies the image-forming color toner to a latent image on the latent image bearing member so as to develop the latent image and then form a developed image;
• wherein the process cartridge is formed in a one-piece construction and is attachable to and detachable from an image-forming apparatus, and the image-forming color toner comprises:
• a colorant;
• a resin (A);
• a modified resin (B);
• and
• wax (a) as a mold releasing agent;
• in which the image-forming color toner has a phase separated structure having the modified resin (B) as a domain in the resin (A) which is a continuous phase, and wax (a) being effectively contained in the modified resin (B),
• and the modified resin (B) comprises a wax part formed of the wax component (b), and a modified part having a vinyl monomer unit and an average ester group concentration of 8% by weight to 30% by weight.