Hi Denn,
This is the procedure to take screenshots on the Genos, should also work on SX models:
1. Plug in the USB stick.
2. During powering on, hold down the three buttons BREAK - ENDING2 - ENDING3 in the Style section (until the Main display appears).
3. To take a screenshot, press the ONE TOUCH SETTING 4 (OTS 4) button. The images (.bmp format) are saved on the USB stick with ascending numbers.
4. To exit Screenshot mode, re-start the keyboard normally.
Best regards,
Chris