58mm Thermal Receipt Printer Maintenance
1、 58mm Thermal Receipt Print head maintenance When the printer has following circumstances should clean the print head: (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 head is listed below: (1) Turn off the power supply and open the top cover. Remove the paper if necessary. (2) Please wait for the cooling of print head if it just finish printing. (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. 2、Sensor maintenance When the printer has following circumstance 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) Tu...