A cleaning apparatus, comprising: a blade configured to separate toner remaining on an outer peripheral surface of a rotating photoreceptor drum from the photoreceptor drum by slidably contacting the outer peripheral surface of the photoreceptor drum; a screw configured to convey the toner separated from the photoreceptor drum by the blade, by rotating around an axis parallel to the rotational axis of the photoreceptor drum; a toner crushing member provided in association with the screw, the toner crushing member therein being configured to crush toner accumulated between the screw and the blade, by being swung by the screw rotating; and a brush configured to rotate in reverse direction of the rotation direction of the photoreceptor drum around an axis parallel to the photoreceptor drum; a casing that houses the brush, the screw and the toner crushing member, a bracket portion mounted and secured to the casing, wherein the bracket portion extends along the screw and a side surface of the bracket portion opposed to the screw is formed into a concave curved surface; a plate-shaped toner scraper, wherein a base-end portion of the plate-shaped toner scraper is mounted to a side surface opposite side from the screw of the bracket portion; wherein the blade is arranged such that a side end portion of the blade abuts on the outer peripheral surface on the photoreceptor drum in contact with the brush, wherein the distal end portion of the toner scraper is in contact with the brush and the toner scraper is configured to scrape off the toner adhered to the brush between the blade and the screw with its distal end portion; and wherein the screw rotates in the direction reverse to the rotational direction of the photoreceptor drum, characterized in that the toner crushing member is configured having a first part and a second part, with a base-end side of the first part being secured to the casing, and the second part being folded back along a distal-end side of the first part, with a plate-shaped supporting member supporting the toner crushing member at the base-end side of the first part, with the bracket portion and the toner scraper sandwiching the supporting member to which the toner crushing member is mounted, such that the first part of the toner crushing member being secured to the casing while the distal-end side of the first part and the second part being freely swingable, wherein the distal-end side of the second part swings between the blade and the screw, in association with the rotation of the screw. a blade configured to separate toner remaining on an outer peripheral surface of a rotating photoreceptor drum from the photoreceptor drum by slidably contacting the outer peripheral surface of the photoreceptor drum; a screw configured to convey the toner separated from the photoreceptor drum by the blade, by rotating around an axis parallel to the rotational axis of the photoreceptor drum; a toner crushing member provided in association with the screw, the toner crushing member therein being configured to crush toner accumulated between the screw and the blade, by being swung by the screw rotating; and a brush configured to rotate in reverse direction of the rotation direction of the photoreceptor drum around an axis parallel to the photoreceptor drum; a casing that houses the brush, the screw and the toner crushing member, a bracket portion mounted and secured to the casing, wherein the bracket portion extends along the screw and a side surface of the bracket portion opposed to the screw is formed into a concave curved surface; a plate-shaped toner scraper, wherein a base-end portion of the plate-shaped toner scraper is mounted to a side surface opposite side from the screw of the bracket portion; wherein the blade is arranged such that a side end portion of the blade abuts on the outer peripheral surface on the photoreceptor drum in contact with the brush, wherein the distal end portion of the toner scraper is in contact with the brush and the toner scraper is configured to scrape off the toner adhered to the brush between the blade and the screw with its distal end portion; and wherein the screw rotates in the direction reverse to the rotational direction of the photoreceptor drum, characterized in that the toner crushing member is configured having a first part and a second part, with a base-end side of the first part being secured to the casing, and the second part being folded back along a distal-end side of the first part, with a plate-shaped supporting member supporting the toner crushing member at the base-end side of the first part, with the bracket portion and the toner scraper sandwiching the supporting member to which the toner crushing member is mounted, such that the first part of the toner crushing member being secured to the casing while the distal-end side of the first part and the second part being freely swingable, wherein the distal-end side of the second part swings between the blade and the screw, in association with the rotation of the screw.