Manual

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17.3. Cleaning the thermal print head
Clean the print head with methanol or isopropyl alcohol and a cotton bud.
Important:
◼ Do not touch the print head with your finger or hand to prevent damage.
◼ Perform the cleaning process each time the paper roll is replaced to prevent print quality
deterioration.
CAUTION
Hot print head can cause burns.
Let printer cool down before opening.
1. Move the power switch to position 0 to switch the printer off.
2. Disconnect the printer from the power supply.
3. Let the printer cool down for about 3 minutes. The printer head can be very hot.
4. Open the printer cover.
5. Dampen a cotton bud with methanol or isopropyl alcohol.
6. Clean the head with the cotton bud. Start at the center and move to the outside.
7. Wait for the alcohol to completely evaporate.
17.4. Cleaning roller and/or paper path
Clean the roller and paper path if you notice reduced print quality or problems with paper
detection.
1. Move the power switch to position 0 to switch the printer off.
2. Disconnect the printer from the power supply.
3. Let the printer cool down to room temperature.
4. Open the printer cover.
5. Remove the installed paper roll.
6. Remove lose dust or foreign substance using dry cloth or cotton swabs.
7. Remove persistent adhesive foreign substances with a clean cloth or cotton swab dampened
with methanol or isopropyl alcohol.
8. Wait for the alcohol to completely evaporate before you use the printer again.