7.2 Cleaning Sensors, Roller and/or Paper Path
1) Open the printer cover and then remove the paper.
2) Remove any dust or foreign substance using dry cloth or cotton swab.
3) Soak the cloth or cotton swab in alcohol for medical use and use it to remove
adhesive foreign substances or other pollution materials.
4) After cleaning the parts, do not use the printer until the alcohol evaporates
completely (1~2 min) and the printer has completely dried.
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Clean the parts whenever print quality or paper detection degraded.