Panasonic Toughbook CF-H1CSLFZ6M Reference Manual page 51

Barcode Reader
51
To Correctly Read a Barcode with This Computer, Observe the Following
The reading angle is important factor.
2° to 3°
Perform reading at the angle indicated in the figure. We recommend you
to set at approximately 2° to 3° angle from the perpendicular position.
Hold the reader farther away when reading a larger barcode, and closer in when reading a smaller barcode or a thinner
barcode.
Perform reading so that the entire symbol falls within the center of the red LED light.
Right Right
Right Right
LED light
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 outside the LED light, the barcode cannot be read. Make sure the entire barcode is inside the LED light.
Right
Wrong
LED light