Return your Brother printer to full working order with the Brother LK2179001 carriage assembly & print head. Replace your LK2179001 print head when required to do so by your printer to get the best printing results from your machine. Over time, print heads can become blocked, even when a cleaning cycle is done which in itself is an expensive process, your printhead will not be fully operational. This is when you should replace your Brother LK2179001 print head with a new one.