Patent ID: 8705996

Claim:
An image forming apparatus, comprising: a first image forming portion for forming a first toner image on a recording material under a condition satisfying a relationship A1<(ρ1ΠL1)/30√3, where a specific gravity of a toner of a first color is ρ1 (g/cm 3 ), a weight-average particle size is L1 (μm), and a maximum toner amount per unit area of the toner to be formed on the recording material before fixing is A1 (mg/cm 2 ); a second image forming portion for forming a second toner image on a recording material under a condition satisfying a relationship A2<(ρ2ΠL2)/30√3, where a specific gravity of a toner of a second color is ρ2 (g/cm 3 ), a weight-average particle size is L2 (μm), and a maximum toner amount per unit area of the toner to be formed on the recording material before fixing is A2 (mg/cm 2 ); and a fixing device for fixing the first and second toner images on the recording material so that when said image forming apparatus forms the first and second toner images on the recording material by superposing, on the first toner image formed with the maximum toner amount per unit area A1 by said first image forming portion, the second toner image formed with the maximum toner amount per unit area A2 by said second image forming portion, a first-and-second-toner-image-overlaying ratio is 84% or more.