Toner, method for forming a full-color image, and process cartridge

A method for forming a full-color image comprising the steps of:

• (i) forming a first static charge image on an image carrier, developing the static charge image with a first toner selected from the group consisting of a cyan toner, magenta toner, and yellow toner to form a first toner image on the image carrier, and transferring the first toner image onto a transfer material via or not via an intermediate transfer member;
• (ii) forming a second static charge image on an image carrier, developing the static charge image with a second toner selected from the group consisting of the cyan toner, magenta toner, and yellow toner to form a second toner image on the image carrier, and transferring the second toner image onto the transfer material via or not via the intermediate transfer member;
• (iii) forming a third static charge image on an image carrier, developing the static charge image with a third toner selected from the group consisting of the cyan toner, magenta toner, and yellow toner to form a third toner image on the image carrier, and transferring the third toner image onto the transfer material via or not via the intermediate transfer member;
• and
• (vi) heating/fixing the first to third toner images on the transfer material to form a full-color image on the transfer material,
• (v) wherein as the cyan toner, magenta toner, and yellow toner, a toner is used which comprises at least a binder resin, a coloring agent, and a wax and in which (a) a deformation amount of the toner (R200) at the time of application of a load of 200 g at a temperature of 120° C. is in a range of 45% to 75% and in which (b) a deformation amount of the toner (R500) at the time of application of a load of 500 g at a temperature of 120° C. is in a range of 65% to 85% and in which (C) there is at least one endothermic peak or shoulder in a range at 60 to 120° C. in a DSC curve at the time of temperature rise measured by a differential scanning calorimeter (DSC).

A process cartridge which is constituted so as to be attachable/detachable with respect to an image forming apparatus and in which i) an image carrier or at least one means selected from the group consisting of the image carrier, a charging means for charging the image carrier, a latent image forming means for forming an electrostatic latent image on the image carrier, a transfer means for transferring a toner image formed by developing the electrostatic latent image onto a transfer material, and a cleaning means for removing toner remaining on the image carrier after the toner image is transferred onto the transfer material, and ii) a developing means for developing the electrostatic latent image formed on the image carrier with the toner to form the toner image are integrally supported,

• wherein the toner is a toner which comprises at least a binder resin, a coloring agent, and a wax and in which (a) a deformation amount of the toner (R200) at the time of application of a load of 200 g at a temperature of 120° C. is in a range of 45% to 75% and in which (b) a deformation amount of the toner (R500) at the time of application of a load of 500 g at a temperature of 120° C. is in a range of 65% to 85% and in which (C) there is at least one endothermic peak or shoulder in a range at 60 to 120° C. in a DSC curve at the time of temperature rise measured by a differential scanning calorimeter (DSC).