Sales of China Printer Motor, commonly used also have the basic working principle of needle printer: Needle printer is the use of mechanical and circuit driving principle, so that the printing needle impact ribbon and print medium, and then print out the dot matrix, and then the dot matrix composed of characters or graphics to complete the printing task. When the printer is on line, it receives the print control command, character print or graphic print command sent by the PC through the interface, and then after processing by the CPU of the printer, it looks for the first column address (forward printing) or the last column address (reverse printing) corresponding to the character or graph in the font library. The code is thus picked out column by column and sent to the print-head drive circuit, which stimulates the print-head to print on the pin printer.
The structure of the needle printer: the needle printer is composed of "printing mechanism" and "control drive circuit" two parts, in the printing process, there are three kinds of mechanical movement: transverse movement of the print head, longitudinal movement of the printing paper and the movement of the print needle. These movements are carried out by a software-controlled drive system with precision machinery.
