Electronic related component products

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...

1. Self-checking of 58mm Receipt Printer Self-checking can test the printer is work well or not, if it can print the test  list correctly that means the printer is good enough (which is excluding the problem with the connected interface to PC); otherwise, it needs repair. Self-checking could print software version number, print density, interface type, English character and some Chinese characters by order. Self-checking procedure: Make sure the printer is connected to the power, then press the feed key and switch on the power supply while the  key is still under pressing. At the same time, the printer begins to self-checking. Please loosen the  key within five seconds and the printer would print the self-testing list after it. The test list looks like the following when it finished: Selftest ***** ** Completed ** 2. Serial Interface 58 serial interface adopt RS-232 standard, baud rate is 9600bps,  data structure is no parity, 8 bit...