PRINT HEAD FOR DOT PRINTER

摘要

PURPOSE:To print a character at a high speed with a high accuracy by arranging a print speed control member opposite to a printing wire mobile section to control the speed between arms when a printing wire strikes an ink ribbon and a paper. CONSTITUTION:A plate spring 9 for controlling the printing wire speed is mounted adjoining the top of a driving plate spring 5. With this spring, the driving plate spring 5 separates from a lower yoke 2b according to a print signal, shooting out fast by elastic energy of the spring 5 and then, before the printing wire 7 strikes an ink ribbon and a paper, the driving plate spring 5 gets in contact with the plate spring 9 for controlling the printing wire speed to check the speed of the printing wire 7. This enables the checking of the speed (u) the moment the printing wire 7 strikes the ink ribbon and the paper.