Brief introduction of the built-in pump technology of small character printer The small character printer is the most widely used automatic coding equipment . At present, almost all small-sized machines use built-in pump technology, and few of them use the previous generation of air-source coding technology. The basic principle of the built-in pump technology is that the ink is pressurized by the pump, sprayed at high speed and high pressure, the pressure is controlled well, the ink dots are stable, and after the electric field is deflected, the code information is obtained, so the performance of the built-in pump technology coding equipment is required. It is more stable than the air source coding technology. Â Small character printer built-in pump technology advantages 1. The ink path design is simpler, the internal components are simple in structure, and the maintenance is very convenient. 2 , the ink path is completely closed, the air can not enter the ink path, the dust will not enter the polluted ink, and the ink will not leak out. 3 , the machine is smaller, and the function is more powerful, and some manufacturers' printer code barcodes are more beautiful. 4 , lower cost, fully closed ink path, consume less consumables. 5 , fully automatic cleaning and maintenance.