An image forming apparatus includes an image bearing member; an
electrostatic image forming device for forming an electrostatic image on
the image bearing member on the basis of an input signal; a developing
device for developing the electrostatic image with toners having the same
hue and having different densities; a toner image formation device for
forming a toner image on a recording material; and a fixing device for
fixing the toner image on the recording material, wherein a total of
amounts per unit area of the toners which have the same hue and different
densities and which constitute the toner image, is different when the
toner image is formed on the basis of an input signal on a recording
material which is a paper sheet and when the toner image is formed on the
basis of the same input signal on a recording material which is an OHP
sheet.