What if there is no ink, but air is working?
If the air is flowing correctly from the nozzle of the air grip then check these things: Make sure the marker is inserted correctly, with the chisel point up in the grip. If you are using Sketch markers check that the marker tip is straight up and down. Sometimes the med. Broad nib is not inserted all the way. Gently push on the marker tip to make sure the base of the tip is flush with the plastic edge of the marker body. If your marker is old or has been used a lot, it might need more ink. Also, the tip might be worn or frayed. You should replace the tip to get the best spray. The fine point on a Copic Marker will not work, but either end works on a Sketch. If you are using a compressor, make sure the pressure is correct. Too little will not spray and too much will blow out the system.
