The Drum Chip 224/284/364/454 is an essential part of the drum unit for Canon’s imageRUNNER series of copiers and multifunction printers (MFPs). These chips are integrated into the drum unit to communicate with the printer’s sensors, providing the printer with information about toner levels, usage statistics, and other operational conditions. The chip helps to optimize print quality, ensures proper functioning, and can also signal when a replacement is needed.