The scanning effect of two-dimensional code printed on thermal label paper is mainly affected by the following factors:
1. Quality of thermal label paper
Material and coating: high-quality heat-sensitive label paper has better color rendering effect and durability, and the printed two-dimensional code has clear lines and high contrast, which helps to improve the scanning effect.
Water resistance and wear resistance: although the characters and patterns printed on thermal paper will gradually fade, blur, deform, and are not resistant to water and scrubbing, under normal conditions of use (such as non-long-term immersion in water or frequent friction), its impact on the scanning effect is relatively small.
2. Print devices and Settings
Printing resolution: High-resolution printing equipment can generate clearer two-dimensional code images, thereby improving the scanning recognition rate.
Print speed and depth: Appropriate print speed and depth Settings can ensure that the lines of the QR code are complete and clear, avoiding blurring or broken lines.
Print head cleaning and maintenance: Keeping the print head clean and in good working condition is essential to ensure print quality, which in turn affects the scanning effect of the QR code.
3. Qr code design and generation
Complexity of two-dimensional code: The greater the amount of information encoded in the two-dimensional code, the higher the complexity, which may lead to too dense code points, affecting the recognition ability of scanning devices. Therefore, when designing two-dimensional code, the encoded information should be reasonably controlled according to actual needs.
Contrast and size: high-contrast QR codes are more easily recognized by scanning devices. At the same time, the size of the two-dimensional code should be determined according to the actual scanning distance to ensure that the scanning device can capture the complete two-dimensional code image.
4. Scan devices and software
Scanning equipment performance: scanning equipment camera resolution, focusing speed, light sensing ability and other factors will affect the scanning effect of two-dimensional code.
Scanning software: The use of proven and widely used QR code scanning applications generally has higher identification accuracy and speed.
5. Use environment and operation mode
Light conditions: Moderate light conditions help to improve the recognition rate of two-dimensional code. Too strong or too weak light can affect the scanning effect.
Scanning Angle and distance: The user should align the QR code at a vertical Angle and maintain an appropriate scanning distance. Too large or too small an Angle and too far or too close a distance can affect the recognition effect.
Summary of scanning effect
Under ideal conditions (such as the use of high-quality thermal label paper, high-resolution printing equipment, reasonable printing Settings, simple two-dimensional code design, good performance scanning equipment and correct operation mode), thermal label paper printed two-dimensional code scanning effect is usually good, can meet the needs of daily use. However, in practical applications, the scanning effect may be different due to various factors. Therefore, when printing and using the two-dimensional code of thermal label paper, it is necessary to pay attention to the above factors and take appropriate measures to ensure a good scanning effect.