A cleaning apparatus (20, 41) configured to clean an image carrier having an elastic layer after a toner image formed on the image carrier is transferred onto a transfer object, wherein the cleaning apparatus includes: a cleaning blade (25, 61), configured to contact the image carrier having an elastic layer and is configured to remove a residue attached to the image carrier, wherein the cleaning blade has a rotation shaft along a width direction of the image carrier, the width direction extending orthogonal to the movement direction of the image carrier, the rotation shaft being located at a position which has different lengths from respective ends of the cleaning blade; a change section configured to change a cleaning condition of cleaning by the cleaning blade, wherein the change section is configured to change an edge angle as the cleaning condition, the edge angle being an angle between an end surface of a tip of the cleaning blade configured to face the opposite direction or counter direction to the movement direction of the image carrier and a surface of the image carrier, and wherein the change section is configured to rotate the cleaning blade around the rotation shaft; and a control section configured to control the change section to change the cleaning condition in accordance with deterioration of the image carrier, wherein the control section is configured to control the change section at a predetermined timing to make the edge angle smaller than the edge angle before the predetermined timing, and wherein the control section is configured to control the change section at the predetermined timing to change a contact state from a state in which the end of the cleaning blade having a longer length from the rotation shaft contacts the image carrier to a state in which the end of the cleaning blade having a shorter length from the rotation shaft contacts the image carrier. a cleaning blade (25, 61), configured to contact the image carrier having an elastic layer and is configured to remove a residue attached to the image carrier, wherein the cleaning blade has a rotation shaft along a width direction of the image carrier, the width direction extending orthogonal to the movement direction of the image carrier, the rotation shaft being located at a position which has different lengths from respective ends of the cleaning blade; a change section configured to change a cleaning condition of cleaning by the cleaning blade, wherein the change section is configured to change an edge angle as the cleaning condition, the edge angle being an angle between an end surface of a tip of the cleaning blade configured to face the opposite direction or counter direction to the movement direction of the image carrier and a surface of the image carrier, and wherein the change section is configured to rotate the cleaning blade around the rotation shaft; and a control section configured to control the change section to change the cleaning condition in accordance with deterioration of the image carrier, wherein the control section is configured to control the change section at a predetermined timing to make the edge angle smaller than the edge angle before the predetermined timing, and wherein the control section is configured to control the change section at the predetermined timing to change a contact state from a state in which the end of the cleaning blade having a longer length from the rotation shaft contacts the image carrier to a state in which the end of the cleaning blade having a shorter length from the rotation shaft contacts the image carrier.