Image forming apparatus

An image forming apparatus comprising:

• an image holding member;
• a charge unit that charges a surface of the image holding member;
• an electrostatic latent image forming unit that forms an electrostatic latent image on a charged surface of the image holding member;
• a developing unit that contains a developer containing a toner, and develops the electrostatic latent image formed on the surface of the image holding member with the developer to form a toner image;
• an intermediate transfer member of which the toner image is to be transferred to a surface;
• a primary transfer unit that primarily transfers the toner image formed on the surface of the image holding member to the surface of the intermediate transfer member;
• a second transfer unit that secondarily transfers the toner image transferred on the surface of the intermediate transfer member to a surface of a recording medium;
• and
• a guide unit that is provided on an upstream in the rotation direction of the intermediate transfer member from the primary transfer unit, and guides at least one of the image holding member and the intermediate transfer member up to a primary transfer position provided by the primary transfer unit such that a portion of the surface of the image holding member and a portion of the surface of the intermediate transfer member are disposed along with each other,
• wherein the toner contains a toner particle which contains a binder resin containing a crystalline polyester resin, a coloring agent and a releasing agent, and an external additive, and satisfies the following Expression (1):
• 2≦tan δP1≦2.5 (1)
• wherein tan δP1 represents a maximum value of a mechanical loss tangent existing in a range where a complex elastic modulus is from 1×106 Pa to 1×108 Pa, which is measured at an angular frequency of 6.28 rad/sec and a strain amount of 0.3%.