A cleaning member for use in an image forming apparatus and configured to be inserted into the image forming apparatus from outside the image forming apparatus, the image forming apparatus including a holding body comprising a metal magnetic body holding a substrate on which a plurality of light emitting elements configured to emit light to expose a photosensitive drum are aligned in a rotational axis direction of the photosensitive drum and holding lenses configured to collect the light emitted from the light emitting elements to the photosensitive drum, the cleaning member comprising: a rod formed of resin; a cleaning portion attached to the rod to clean a light emission surface of each lens, the cleaning portion configured to move together with the rod on insertion of the cleaning member into the image forming apparatus and to oppose the light emission surface in an optical axis direction of the lenses; a magnet attached to the rod, the magnet emitting a magnetic field to generate a magnetic force to draw the holding body thereto, in the case that the cleaning member is inserted in the image forming apparatus, so that the cleaning portion opposing the light emission surface maintains contact with the light emission surface; a yoke member attached to the rod and in contact with the magnet, wherein in a state in which the cleaning member is inserted in the image forming apparatus, the yoke member is configured to protrude, with respect to the magnet, in a direction of an optical axis of the lenses towards a side on which the holding body is disposed; and a contact portion (630a, 630b, 634a, 635a) configured, in the state in which the cleaning member is inserted in the image forming apparatus, to protrude, with respect to the yoke member, in the optical axis direction towards the side on which the holding body is disposed, and configured to be in contact with the holding body. a rod formed of resin; a cleaning portion attached to the rod to clean a light emission surface of each lens, the cleaning portion configured to move together with the rod on insertion of the cleaning member into the image forming apparatus and to oppose the light emission surface in an optical axis direction of the lenses; a magnet attached to the rod, the magnet emitting a magnetic field to generate a magnetic force to draw the holding body thereto, in the case that the cleaning member is inserted in the image forming apparatus, so that the cleaning portion opposing the light emission surface maintains contact with the light emission surface; a yoke member attached to the rod and in contact with the magnet, wherein in a state in which the cleaning member is inserted in the image forming apparatus, the yoke member is configured to protrude, with respect to the magnet, in a direction of an optical axis of the lenses towards a side on which the holding body is disposed; and a contact portion (630a, 630b, 634a, 635a) configured, in the state in which the cleaning member is inserted in the image forming apparatus, to protrude, with respect to the yoke member, in the optical axis direction towards the side on which the holding body is disposed, and configured to be in contact with the holding body.