This drum unit rebuild kit is designed for use with select imageRUNNER printers, including the C3020, C3025, C3025i, C3125, C3125i, C3226, C3226i, C3326, and C3326i models.It provides a comprehensive set of components to restore drum functionality and support consistent print performance in volume environments.The kit is engineered for and ease of installation without the need for specialized tools.