Electrophotography and image forming apparatus

An image forming apparatus comprising:

• a latent electrostatic image bearing member,
• a charging unit configured to charge the latent electrostatic image bearing member,
• a developing unit configured to develop a latent electrostatic image on the electrostatic image bearing member using a developer to thereby form a toner image, and
• a transferring unit configured to electrostatically transfer the toner image on a transferring material by making the transferring unit contact with the surface of the latent electrostatic image bearing member through the transferring material,
• wherein the developer comprises a carrier which comprises magnetic particles and a toner for electrophotography, and the toner for electrophotography is produced by dissolving and/or dispersing at least a modified polyester resin capable of reacting with an active hydrogen group-containing compound and colorants in an organic solvent, further dispersing the solution or the dispersion liquid in an aqueous medium to subject the modified polyester resin capable of reacting with the active hydrogen-containing compound to an elongation and/or a cross-linking reaction, and removing the organic solvent from the obtained dispersion liquid to thereby obtain toner base particles which comprises one or more inorganic fine particles.

A process cartridge comprising:

• a latent electrostatic image bearing member, and
• one or more units selected from
• a charging unit configured to charge the latent electrostatic image bearing member,
• a developing unit configured to develop a latent electrostatic image on the latent electrostatic image bearing member using a developer loaded on the developing unit to form a toner image, and
• a cleaning unit configured to remove a residual toner on the surface of the latent electrostatic image bearing member after transferring, and are integrally supported so as to be detachably mounted on an image forming apparatus,
• wherein the toner is produced by dissolving and/or dispersing at least a modified polyester resin capable of reacting with an active hydrogen group-containing compound and colorants in an organic solvent, further dispersing the solution or the dispersion liquid in an aqueous medium to subject the modified polyester resin capable of reacting with the active hydrogen-containing compound to an elongation and/or a cross-linking reaction, and removing the organic solvent from the obtained dispersion liquid to thereby obtain toner base particles which comprises one or more inorganic fine particles.