Compatible with printer models 306ci and 356ci, as well as M6230, M6630, M6235, M6635, M6030, M6530, and M6035. Includes all necessary components to rebuild the drum assembly for the listed compatible models. Designed for use with DK5195 and DK5140 drum assemblies to support. Engineered for consistent performance under standard operating conditions. Simplifies maintenance and repair with parts precisely matched to specified model requirements.