1Set CMYK Developer for iR ADVANCE C5030 C5035 C5045 C5051 C5235 C5240 C5250 C5255 Compatible Iron Powder 240g The developer drum unit is a critical component in laser and digital color copiers, including the iR ADVANCE series.It functions by transferring toner particles onto the photoreceptor belt through an electrostatic charge, which are then fused onto paper during printing.With regular use, the drum's and its ability to evenly distribute toner can degrade due to exposure to heat, pressure, and mechanical wear.This CMYK developer set contains iron powder formulation designed for compatibility with iR ADVANCE models C5030, C5035, C5045, C5051, C5235, C5240, C5250, and C5255.Each set includes 240g of iron powder developed to support consistent toner development and print output.Replacing worn developer units helps maintain image clarity, reduces print defects, and supports overall printer performance over extended use.