Verify Power is being supplied

Using a multimeter on AC setting, check that wall outlet is 120 Vac

If not, then switch to another source. otherwise proceed to next step.

Using a multimeter on DC setting, check that scanner wall power pack is providing 24 Vdc

If not, then locate and obtain another ( Compatible ) power pack. Unit should be obtained from manufacturer and if not available then the following is the rated specification at time of this guide ( Input=100-240Vac 1.0A Max 50-60Hz Output=24Vdc 0.75A 18W ) Center Positive Polarity

High voltage present at wall outlet, be sure to pay attention when checking voltage with multimeter.

Use caution when checking scanner wall power pack, so not to short out contacts.