Each scanner has a label on the back of the unit that lists the model number,
date of manufacture, serial number, CE and caution information. The following
is an example of the label:
Smudges and dirt can interfere with the proper scanning of a bar code.
Therefore, the output window will need occasional cleaning.
1. Spray glass cleaner onto lint free, non-abrasive cleaning cloth.
2. Gently wipe the scanner window.