User's Manual

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(3) Use the cotton cloth and dip it in the absolute ethyl alcohol to clean the surface of
print head.
(4) When the absolute ethyl alcohol is completely volatilized, please close the top
cover and restart the printer.
7.2 Sensor Maintenance
When the printer has following circumstance, the user should clean the paperless
sensor:
(1) During the printing, the printer occasionally stops print and the paperless alarm is
beeping.
(2) No paperless alarm.
Procedure of maintaining the sensor is listed below：
(1) Turn off the power supply and open the top cover. Remove the paper if necessary.
(2) Use the cotton cloth and dip it in the absolute ethyl alcohol to clean the surface of
sensor.
(3) When the absolute ethyl alcohol is completely volatilized, please close the top
cover and restart the printer.
7.3 Print Roll Maintenance
When the printer has following circumstance, the user should clean the print roll:
(1) Printing is not clear;
(2) Some longitudinal columns on the printing page is vague;
(3) Loud noise when feeding.
Procedure of maintaining the print roll is listed below:
(1) Turn off the power supply and open the top cover.
(2) Use the cotton cloth and dip it in the absolute ethyl alcohol to clean the surface of
print roll.
(3) When the absolute ethyl alcohol is completely volatilized, please close the top
cover.
Notice: