VIBRATION-TYPE DOT LINE PRINTING HEAD Russian patent published in 2004 - IPC

FIELD: printing heads of printers on paper media, in particular, cash registers and other loggers.

SUBSTANCE: the head has a body, permanent magnet, magnetic core, compensation coils with cores, unit of springs-hammers, each having a dot printing area located on its top, and the root is branched into two parts turned to the top, the turned parts of the adjacent springs are integrated and have holes for attachment to the body. A tab of soft magnetic material is fastened to the permanent magnet in the area of each core on the side of one of the poles, the tab end is bent to the opposite pole of the permanent magnet to the position at which the magnetic flux in the cores of all section is the same and minimum for operation of the spring-hammers.

EFFECT: reduced strength of current in the compensation coils due to equalization of the magnetic fluxes in the cores to the position of the "weak" section, and reduced power consumption.

2 dwg