https://integratedbiometrics.com/wp-content/uploads/2020/03/Kojak_User_Manual.pdf 

https://integratedbiometrics.com/cleaning 

• Fingers should be pointing at the cord and grounded firmly against the platen and grounding bar.

• Palms should be flat and not lifted to ensure finger contact with the metal grounding bar

• Do not hold scanner by the cable

• Avoid excessive bending or straining the USB cord