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Chapter 13 Troubleshooting
Problem 1: Low reading efficiency.
Probable cause
What to do:
•
A target code is not within the scanning range of the
reading window.
•
Bring a code within the scanning range.
•
The code may be smeared.
•
Wipe off the dirt from the code.
•
The code may be blurred.
•
Use a code clearly printed.
Problem 2: Cannot read 2D codes or bar codes.
Probable cause
What to do:
•
The type of the code to be scanned has not been set
as a readable code.
•
Specify the type of the code to be scanned as a readable
code.
•
The scanned bar code contains no check digit, while
the "Enable, with a check digit" parameter is
selected.
•
Select the "Enable, without a check digit" parameter.
•
The check digit contained in the scanned bar code is
wrong.
•
Use a correct bar code.
Problem 3: Code data cannot be displayed normally on the PC screen.
Probable cause
What to do:
•
The communications conditions of the scanner are
different from those of the connected host.
•
Change the communications conditions of the scanner to
match those of the connected host.
