Image forming apparatus

An image forming apparatus comprising:

• an image bearing member unit constituted by a rotatable image bearing member on which an electrostatic latent image is formed and a cleaning blade configured to come into contact with a surface of the image bearing member in a rotating state to remove toner from the surface of the image bearing member;
• a developing unit configured to supply toner to the surface of the image bearing member to develop the electrostatic latent image as a toner image;
• and
• a control device configured to, during a period where image formation is not performed, supply toner to the surface of the image bearing member from the developing unit to perform toner supply between the cleaning blade and the surface of the image bearing member,
• wherein the image bearing member unit and the developing unit are respectively configured to be independently attachable to and detachable from an apparatus main body of the image forming apparatus,
• wherein the image bearing member unit has a first memory that stores information related to a toner amount during the toner supply in accordance with a use amount of the image bearing member unit,
• wherein the developing unit has a second memory that stores information related to a toner amount during the toner supply in accordance with a use amount of the developing unit, and
• wherein the control device controls, during the toner supply, the toner supply with a toner amount based on the information stored in the first memory and the information stored in the second memory.