The image forming apparatus has an image bearing member bearing an image thereon,
and a transfer member contacting with the image bearing member in a contact portion,
the image on the image bearing member is transferred to a transfer medium in the
contact portion by the transfer member, the Young's modulus of the image bearing
member is equal to or greater than 2108 [N/m2] and
equal to or less than 9109 [N/m2] and contact pressure
P between the image bearing member and the transfer member is equal to or greater
than 4.0104 [N/m2] and equal to or less than 7.3104
[N/m2]. Thereby, there is provided an image forming apparatus
which prevents the deterioration of an image even if use is made of an image bearing
member of high hardness.