NCR RealPOS 70XRT User Manual page 59

Chapter 3: Touch Screen Calibration 3-5
d. After touching you are warned to not touch the screen.
Accept
Touching the screen during this time can cause the Hampshire Application to hang.
This screen will automatically close after the touch controller has completed
communicating. The time varies depending on the number of calibration points that
are used. When complete, the system returns to the desktop with the TSHARC Control
Panel displayed.