5.1. C-Pen 20, Ectaco/C-Pen, and C-Pen 3.0

These models are always turned on when the USB cable is connected to a computer which is turned on. These models will
automatically turn off when you turn off the computer, or if you remove the USB cable.

5.2. C-Pen 3.5

This model has an internal battery.

When the USB cable is connected

− C-Pen 3.5 will always be ON.

When the USB cable is not connected

− Turn the pen ON by pressing the function button.

− Turn the pen OFF by keeping the function button pressed for 3 seconds. (LED will turn off)

To enter “Discoverable mode”, start the C-Pen 3.5 by pressing the function button for 6 seconds. The blue LED will blink once per second to indicate “Discoverable Mode”.