Opc Drum - Ricoh MP 7503SP Field Service Manual

No.
12 Brush Cleaning Roller
13 Pressure Release Filter
14 Cleaning Blade
Here is a summary of the main components ands features of the drum unit:
• OPC Drum. Durable OPC Drum (100 mm dia.)
• Quenching. 16 red LEDs quench the charge from the surface of the drum.
• Drum charge mechanism. Scorotron grid charge wire charging and cleaning system.
• Paper separation pawls. Paper separation with pick-off spurs.
• Cleaning mechanism. Counter blade method.
• ID sensor, Potential sensor. Used for process control.
• Drive unit. A single drum motor drives both drum and drum cleaning mechanism.
• Toner recycling mechanism. Toner is retrieved and recycled in the development unit by suction
through a recycling tube.

OPC Drum

The OPC drum has an open flange with large holes to permit air to flow through to cool the drum. The
drum is also grounded with a brush at the back of the machine. Quenching is done with an array of 16
red LEDs.
Name
Print Process (Main Engine Components)
1041