Is your pen not writing? Like any roller-ball pen, sometimes the tip clogs up or dries out. If your pen is under 2 years old it should be easy to get to start writing again:
1st. Tap, Tap, Tap
Before you try anything else, tap the side of your pen on a table edge! We’ve found that jostling the ink to disturb any particle clumps cures many errant writing problems.
2nd. Clogged Tip Silver Settling
This could happen if the large silver particles (the conductive material in the ink) jam inside the pen tip. You can wet a paper towel with water and dab the tip of the pen with the damp paper towel or try writing on the wet part of the paper towel to get the tip to moisten and allow the ink to flow.
3rd. Silver Settling
The ink is mainly made of silver and water. Since silver is much more dense (10x!!) than water, it is normal for silver to sink to the bottom of the ink reservoir. Depending on how you store your pen, it can take on a few appearances:
Tip down: particles settle towards the tip and leave a clear fluid above. The pen should work normally for a while but eventually become less conductive. Agitate the pen, or store it tip-up until the silver looks more uniform.
Stored on side: the ink reservoir will look like it’s split into two half cylinders – one silver and one clear. The pen should work normally but if you don’t like the way it looks, you can agitate the pen or store it on the opposite side until the color is uniform.