Cleaning blade and image forming apparatus

An image forming apparatus comprising:

• an image bearing body;
• and
• a cleaning blade having a contact portion contacting a surface of the image bearing body to remove a developer remaining on the surface of the image bearing body when the image bearing body rotates,
• wherein, using coefficients α [Pa], β [1/° C.], and γ [Pa] and a temperature T [° C.], a loss elastic modulus E″ [Pa] of the cleaning blade is represented by:
• E″=α×eβT+γ;
• 1.36×103≤α≤2.24×109;
• −0.12≤β≤−0.005;
• 1.70×104≤γ≤2.61×105;
• and
• 0° C.≤T≤100° C.,
• wherein an angle between a tangential line at a deformation starting point of the cleaning blade and a tangential line at a point where the contact portion contacts the surface of the image bearing body is in a range from 10 to 15 degrees,
• wherein the contact portion of the cleaning blade is pressed against the surface of the image bearing body with a linear pressure in a range from 12 gf/cm to 24 gf/cm.