Patent ID: 6834170
Filing Date: 2004-12-21
Classification: G03G

Abstract:
A developing apparatus, comprising:a housing which contains toner; a developer roller which is combined with the housing to rotate and adheres toner onto an outer circumference thereof, to supply toner out of the housing; a blade which controls an amount of toner that is adhered onto the outer circumference of the developer roller; and sealing members which are installed on both inside walls of the housing and closely contact the housing, the developer roller, and the blade to prevent the toner from leaking out, wherein the sealing members comprise: a first sealing member which has a side part that elastically and closely contacts the inside walls of the housing and a short side part of the blade, and a front part that elastically and closely contacts the outer circumference of the developer roller; and a second sealing member which overlaps with the first sealing member and has a front part that elastically and closely contacts an inside surface of the blade and the outer circumference of the developer roller.