CET501001 Black Drum Unit Rebuild Kit Ricoh Black Drum Unit Rebuild Kit: 1pc OPC Drum (Japan)-Old,    1pc Drum Cleaning Blade,     1pc Primary Charge Roller (OEM),  1pc Charge Roller Cleaning Roller ,    1pc Drum Lubricant Bar-Black,  1pc Seal Drum-Rear and Front, 1pc Lubricant Application Brush Roller , 1pc Drum Lubricant Application Blade Ricoh MPC3003，MPC3503，MPC4503，MPC5503，MPC6003，MPC3004，MPC3504，MPC4504，MPC5504，MPC6004