Paxar TC6037EM - Manual (Page 25)

Basic Operations 4-5
If the bar code does not scan:
♦ Change the scanner’s angle slightly and try again.
♦ Clean the scanner window. See “Cleaning” in Chapter 5 for more
information.
♦ Move the scanner 4 – 8 inches away from the bar code. Adjust this
distance as needed to find the correct distance.
♦ Try scanning another bar code that you have scanned successfully. If
that scan is successful, the scanning problem is with the bar code.
♦ Move to a more dimly lit area.
♦ Ensure there are no voids (streaks) in the bar code symbol.
If the scan is still unsuccessful, ask your System Administrator to perform
a scanner test.