There are a few ways to clean pen ink out of a dryer. One way is to use a plunger to suction onto the end of the dryer hose and pull. The ink will then flow out and you can clean it up with a cloth or your hands. Another way is to place the pen in a bowl of water and let it soak for about 10 minutes. Then, use a plunger to suction onto the end of the dryer hose and pull. The ink will then flow out and you can clean it up with a cloth or your hands.