Image forming apparatus and photosensitive member unit

An image forming apparatus comprising:

• a rotatable photosensitive member;
• a movable intermediate transfer member;
• an image forming portion configured to form a toner image, to be transferred onto the intermediate transfer member, onto the photosensitive member;
• a cleaning unit configured to remove toner left on a surface of the photosensitive member after transferring the toner image onto the intermediate transfer member, the cleaning unit comprising a cleaning member configured to remove the toner and a cleaning frame supporting the cleaning member;
• and
• a light irradiating portion configured to irradiate the photosensitive member with light after transferring the toner image onto the intermediate transfer member to remove electricity of the photosensitive member, the light irradiating portion comprising:
• a first light guide body configured to extend along a rotation axial direction of the photosensitive member;
• a light source portion provided to face an end surface portion of the first light guide body in the rotation axial direction;
• a reflecting portion disposed to face the first light guide body in an intersecting direction intersecting with the rotation axial direction;
• and
• a second light guide body comprising a facing portion disposed to face the first light guide body and to oppose the reflecting portion through the first light guide body, and configured to irradiate the photosensitive member with the light transmitted through the first light guide body,
• wherein in a cross-section orthogonal to the rotation axial direction, the first light guide body is disposed at a position farther from the photosensitive member than the cleaning frame with respect to a moving direction of the intermediate transfer member, and at least a part of the second light guide body extends from a first light guide body side toward a photosensitive member side between the cleaning frame and the intermediate transfer member.