Patent ID: 7613419

Claim:
An image forming apparatus, comprising: an image bearing member; a latent electrostatic image forming unit configured to form a latent electrostatic image on the image bearing member; a developing unit configured to develop the latent electrostatic image by using a toner to form a toner image; a transfer fixing member configured to bear the toner image; a heating unit configured to heat the toner image on the transfer fixing member; and a pressurizing member configured to form a transfer fixing nip with the transfer fixing member, wherein the toner image on the transfer fixing member is transferred and fixed simultaneously to a recording medium which passes through the transfer fixing nip to record an image on the recording medium, a nip time, which is the time it takes for the recording medium to pass through the transfer fixing nip is 30 ms or less, the toner comprises at least a binder and the binder comprises a main peak in an area of 5,000 to 15,000 molecular weight in a molecular weight distribution measured by GPC, a content of the component of a 30,000 or more molecular weight is 0.05% or less and a value of weight-average molecular weight (Mw)/number average molecular weight (Mn), Mw/Mn is 2 to 6.