Плотность печати чекового принтера слишком мала

Причина выпуска:

1. Печатающая головка была загрязнена. Печатающая головка была загрязнена, Печатающая головка была загрязнена. Как мы все знаем, Печатающая головка была загрязнена, Печатающая головка была загрязнена, Печатающая головка была загрязнена.

2. Печатающая головка была загрязнена. Due to the printing content and language being different, sometimes, the print density by default might not meet every client’s requirements.

3. The coating of thermal paper was faded. Thermal paper to print the font by a heat-sensitive discoloration layer on the paper. With the long-term storage and exposure in the air, the coating of thermal paper is easy to fade. It will cause the printing font color to become light.

Способ ликвидации:

1. Clean the print head regularly and reasonably. Disconnect the power supply first. When the print head became cooled, use alcohol cotton to wipe the print head carefully, don’t touch the hot area. Use an anti-static pad to prevent static electricity from damaging the print head.

2. Adjust to a suitable print density by the printer tool. Download link: Printer_tools_V3.2

3. Replace the thermal paper. To avoid this issue happening again, kindly store it reasonably and use the thermal paper at a valid time.