3
If the size of the barcode is small, please move the barcode close to the scanning
window. If the size of the barcode is big, please move the barcode slightly away from
the scanning window for correct reading.If the barcode is highly reflective (for example,
the coated surface), you may need to tilt the barcode at an angle to successfully scan it.
Maintenance
* The window must be kept clean, the supplier do not bear the guarantee responsibility
due to the improper maintenance.
* Avoid the window being wear and tear or scratched by hard object
* Use the hairbrush to remove the stain on the window
* Clean the window with a soft cloth, such as lens cleaning cloth
* Spraying liquid onto the window is prohibited.
* Prohibit any cleaning solvents, except for the cleaning water.