News 20.07.2020:
Dear customer, due to cookie policies we cannot allow embedding pictures from 3rd party sites any more.
In case you want to show our support teams a picture, open a case at
Thanks for your understanding.

Wacom Customer Support page:

Wacom Product Resources - Drivers, Manuals, Warranty Information & Others

Mac OS 10.15 Catalina Support:

Mac OS 10.15.4 Update:
What does the Mac OS warning message “Legacy System Extension” mean and why am I seeing it?

eStore Shipping
Please note that reduced UPS service might affect your region due to CoVid-19 situation. See updated details for UPS services

Product Registration:
Please register our products on
How do I register my Wacom device?

Intuos 4 PTK-640 pen problem

Intuos, Intuos Pro, Bamboo, Graphire, etc.
Posts: 1
Joined: Sat 21. Mar 2020, 19:57

Intuos 4 PTK-640 pen problem

Postby kowski » Sat 21. Mar 2020, 20:59

Hey guys, So in the middle of working my pen suddenly started behaving strangely. I now have to press quite hard to register any sort of feedback. While before even gently touching the pen to the tablet surface would register contact I know have to press down much harder. The eraser end on the other hand seems to work fine which makes me suspect it is a hardware problem.

I made a video showing the problem:

I have tried:
changing the tip feel to soft
adjusting the click threshold
updating drivers
restarting computer

If any of you guys have seen this problem before or know how to fix it please let me know, thanks!

Posts: 1196
Joined: Tue 8. Aug 2017, 14:35

Re: Intuos 4 PTK-640 pen problem

Postby wacom5 » Mon 23. Mar 2020, 16:17

You probably need a replacement pen. You can confirm if this is a hardware issue by opening the tablet settings, clicking on "About" and then "Diagnose". If the tablet does not register pressure with a gentle touch of the nib on the tablet then the pen is definitely defective.
Need immediate help? Contact our Support:

Return to “Pen Tablets”