Casio V-N500 - Manual (Page 194)

E-192
Important!
Do not tap the Digitizer Pen too strongly against the touch-panel.
Pens other than the dedicated Digitizer Pen cannot be used.
Replacing the Pen Tip
The tip of the pen will wear out over time. Replace the tip as follows.
1. Grasp the tip of the pen and pull it gently out from the end of the pen.
2. Insert the new pen tip.
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