It seems like you're asking about the OPC drum 2365/660, which likely refers to an Optical Photoconductor (OPC) Drum used in laser printers or copiers.

The OPC drum is a crucial component in the process of printing or copying documents. It holds an electrostatic charge that interacts with toner and transfers the image or text onto paper.

• 2365/660 could be a specific model or part number related to the OPC drum, used in certain printer/copier models.

Without more context, it's challenging to determine exactly which printer or copier the "2365/660" OPC drum corresponds to. The number might refer to a model number or a series of drums used in specific devices. It might belong to brands like Canon, Ricoh, Xerox, or others, which manufacture OPC drums for different printer models.

Could you clarify which printer or copier you're referring to or if you're looking for specific details about maintenance or replacement?