Diagnostic report for Honeywell Xenon 1900 scanner failing to read postal codes on polymer bills. Includes troubleshooting, prevention, and safety measures.
Update to the latest firmware version.
Excessive ambient light can interfere with barcode scanning.
Physical damage can cause internal component failure.
Barcode scanners use a laser or LED to illuminate a barcode, and a sensor to detect the reflected light. The scanner interprets the pattern of light and dark bars as data. Polymer bills can have a different reflective index compared to paper, affecting the scanner's ability to accurately decode the barcode. Ambient light interference or a dirty lens can further degrade performance. Voltage fluctuations or cable signal attenuation may impact decoding accuracy.
Honeywell Xenon 1900 scanner fails to consistently read postal codes, specifically when presented on polymer-based bills. Performance degradation is noted only on polymer currency, suggesting potential reflective interference.
Safe Handling: Always disconnect the scanner from the power source before cleaning or performing any maintenance. Avoid using excessive force when cleaning the lens. Do not use abrasive cleaners. Static electricity discharge may damage electronic components. Ensure proper grounding and ESD precautions.
Regularly clean the scanner lens. Avoid touching the lens with bare fingers. Ensure the scanner cable is properly connected and free from strain. Implement ESD prevention measures, especially during dry, winter months (e.g., anti-static mats). Periodically test the scanner with known-good barcodes to detect performance degradation.
Some scanner models offer a 'presentation mode' that optimizes reading speed and accuracy. Check the scanner's user manual for instructions on enabling or disabling this mode. If the scanner is connected via USB, try a different USB port or cable to rule out port-related issues.