Compatible with multiple models including 2020C, 2040C, 2320C, 2330C, 2500C, 2540C, 2820C, 2830C, 3040C, 3500C, 3510C, 3520C, and 3530C for broad usage across various devices. Designed specifically for drum unit maintenance to help maintain consistent print quality over extended use. Each pack contains five cleaning sheets for multiple cleaning cycles to support regular printer upkeep. Easy to use with a simple feed-through process that helps remove and residue from the drum. Helps extend the life of the imaging drum by promoting cleaner internal components during routine maintenance.