E-25
Using the Laser Scanner (DT-X400-10)
1. After turning on the power, position the barcode 
reader close to a bar code and then press the 
trigger key.
2.  The laser emits light and scans the bar code. 
If scanning is completed normally, Notifi cation 
LED displays a green light.
Precautions for Use
• If you have problem not properly reading a code, change the angle and/or the 
distance between the code and the terminal and try reading it again.
• A bar code can be read from a distance of 43mm to 890mm. The actual reading 
distance depends on the symbology and the resolution.
• Soiling on the barcode reader port may prevent successful reading. Should the 
reader port become dirty, wipe it clean with a soft and dry cloth.