Panasonic Toughbook CF-U1A1B1G2M Reference Manual page 54

Barcode Reader
Hold the reader farther away when reading a larger barcode, and closer in when reading a smaller barcode or a thinner
barcode.
<For model with 1D Barcode Reader>
Perform reading so that the red read beam for reading intersects the barcode itself (including at least 12.7 mm {1/2"}
beyond each edge of the barcode).
<For model with 2D Barcode Reader>
Perform reading so that the entire symbol falls within the center of the red LED light.
Right
The reader can still read a barcode even if the barcode is not in the center of the red LED light. However, if a part of the
barcode lies slightly outside the LED light, the barcode cannot be read. Make sure the entire barcode is inside the LED
light.
Right
or or
longer longer
Right
Right
Wrong
less than
Right
LED light
Wrong
LED light
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Right