Toner for developing electrostatic latent image, process for producing the same, developer for developing electrostatic latent image, and process for forming image

A process for producing a toner for developing an electrostatic latent image, the process comprising a first step of:

• aggregating particles in a dispersion containing binder resin particles, colorant particles and releasing agent particles, to obtain aggregated particles;
• and
• heating the aggregated particles to coalesce them,
• the toner comprising a binder resin, a releasing agent and a colorant, the binder resin having a number average molecular weight (Mn) in a range of from 9,000 to 18,000 and a molecular weight distribution represented by a ratio (Mw/Mn) of a weight average molecular weight (Mw) and a number average molecular weight (Mn) of 2.5 or less, and the binder resin containing a vinyl resin.

A process for forming an image comprising the steps of:

• forming an electrostatic latent image on an electrostatic latent image holding member;
• developing the electrostatic latent image with a developer containing a toner to form a toner image;
• transferring the toner image to a transfer material;
• and fixing with heat the toner image thus transferred to the transfer member to a recording medium,
• the toner comprising a binder resin, a releasing agent and a colorant, the binder resin having a number average molecular weight (Mn) in a range of from 9,000 to 18,000 and a molecular weight distribution represented by a ratio (Mw/Mn) of a weight average molecular weight (Mw) and a number average molecular weight (Mn) of 2.5 or less, and the binder resin containing a vinyl resin.