Image forming apparatus

An image forming apparatus, comprising:

• a heating member which heats a toner image formed on a recording medium using a decolorizable toner comprising a binder resin and a coloring agent which contains a color developable compound and a color developing agent and a temperature control agent and which has a capsule structure covered with an outer shell, and produced by reacting the binder resin and the coloring agent in a dispersion medium under being heated;
• a pressing member which is in press contact with the heating member to form a nip portion and nips and conveys the recording medium in cooperation with the heating member;
• a temperature control section which controls the temperature of the heating member to a temperature not higher than the density maintaining threshold temperature of the toner and not lower than the melting threshold temperature of the toner;
• and
• a conveyance control section which controls the conveying speed of the recording medium in the nip portion such that a time required for a point on the recording medium to pass through the nip portion is 100 msec or more.