Dry ice cleaning method, dry ice cleaning apparatus, and part or unit cleaned by dry ice

摘要

A method of cleaning a component or a unit of an image forming apparatus which has been contaminated by a toner used for image forming includes the steps of blasting a target surface of the component or unit which has been contaminated by the toner with dry ice, and supplying a detergent to the target surface when the target surface is blasted with dry ice. In addition, a type or concentration of the detergent is adjusted in accordance with a type of the toner used for image forming.