4X OPC Drum compatible with models 7228, 7235, 7245, 7328, 7335, 7345, 7346, 7700, 7750, 7760, C240, C320, C400, C250, C360, C450, C2200, C3300, C4300, C4400.Designed for use in laser printers and copiers as a replacement component for the organic photoconductor unit.Each drum is engineered to support consistent print performance and during its service life.This pack includes four units for extended maintenance intervals and reduced downtime.