This OPC drum unit is compatible with models E18, 1800, 163, 166, 168, 169, 181, 182, 207, 203, 206, 211, 1810, and 1600.Designed for use in compatible office multifunction printers, it supports consistent print quality and performance.The drum features a straightforward installation process to help reduce downtime.It maintains uniform charge distribution for clear text and image output and is built for extended use in volume printing environments.