Methods For 80mm Thermal Receipt Cleaning

1. Clean the print head

When the POS thermal printer has one of the following conditions, the print head should becleaned :

(1) The printing is not clear;

(2) A certain column in the vertical direction of the printed page is not clear;

(3) The paper feeding noise is loud.

The steps to clean the print head are as follows:

(1) Turn off the printer power, open the top cover, if there is paper, remove the paper;

(2) If you have just finished printing, please wait for the print head to cool down completely;

(3) Use a soft cotton cloth dipped in absolute ethanol (should be wrung out) to wipe off the dust and stains on the surface of the print head;

(4) After waiting for the absolute ethanol to completely evaporate, close the top cover and try the printer again.

2. 80mm small ticket printer sensor cleaning

The out-of-paper sensor should be cleaned when one of the following situations occurs in the printer:

(1) During the printing process, the printer will occasionally terminate printing and an out of paper alarm will appear

(2) No paper out of alarm.

The cleaning steps of the out-of-paper sensor are as follows :

(1) Turn off the printer power, open the top cover, if there is paper, remove the paper;

(2) Use a soft cotton cloth dipped in absolute ethanol (should be wrung out) to wipe off the dust and stains on the surface of the sensor;

(3) After the absolute ethanol has completely evaporated, close the lid and try the machine again.

3. Clean the printing rubber roller

When one of the following situations occurs in the printer, the printing rubber roller should be cleaned:

(1) The printing is not clear;

(2) A certain column in the vertical direction of the printed page is not clear;

(3) The paper feeding noise is loud.

The cleaning steps of the printing rubber roller are as follows :

(1) Turn off the printer power and open the top cover;

(2) Use a soft cotton cloth dipped in a neutral detergent (should be wrung out) to wipe off the dust and stains on the surface of the printing rubber roller;

(3) After the cleaning agent has completely evaporated, close the upper cover.

Notice

(1) Make sure that the printer is turned off during routine maintenance.

(2) Do not touch the surface of the print head with your hands and metal objects, and do not scratch the print head, print rubber roller and sensor surface with tweezers or other tools.

(3) Do not use organic solvents such as gasoline and acetone.

(4) After waiting for the absolute ethanol to completely evaporate, turn on the power to continue printing.

Method to clear the stuck knife

When a paper jam occurs in the printer, the top cover of the printer cannot be opened. Turn off the printer and restart the printer. If the printer does not return, please turn off the printer power, open the front cover of the printer (as shown in the left picture), turn the handwheel (as shown in the arrow position on the right) until the upper cover can be opened normally, that is, clear the jam.