SU1648798A1 - Dot-matrix printing device - Google Patents

Abstract

The invention relates to computing technology and permits an increase in print quality and a reduction in the size of information output devices. A printing head and an axis located in the supporting shaft are mounted on the elastic supports. The axis has the ability to oscillate in antiphase with the print head, and the supporting shaft - to move along the body guides in the vertical direction. 1 il.

Description

The invention relates to computing technology, in particular, to printing devices for printing symbolic and graphical information.

The aim of the invention is to improve the print quality and reduce the size.

The drawing shows the proposed device, a General view.

The dotted printing device comprises a supporting shaft 1 with a recording medium 2 fixed on it, mounted on axis 3 through slide bearings 4. The axis 3 of the supporting shaft, serving as a counterweight, is fixed on elastic sheet supports 5. Parallel to the paper support shaft 1, the printing head 7 is fixed on elastic sheet supports 6. The axis 3 of the supporting shaft 1 and the printing head 7 directly contact the oscillating movement mechanism 8. Between the recording medium 2 and the print head 7 there is a red ribbon (not shown). The supporting shaft 1 is mounted in the walls of the device 9, which are

means of limiting its progress in the horizon, tal plane. The movement of the recording medium 2 is carried out by turning the supporting shaft 1 using a stepping mechanism (not shown).

The device works as follows.

The oscillating movement mechanism 8 communicates the movement of the print head 7 and the axis 3 of the supporting shaft 1 mounted on the elastic supports 6 and 5, as a result of which the printing head 7 and the axis 3 form a balanced mass system and oscillate towards each other at the same speed and movement . The supporting shaft 1, mounted on the axis 3 through the bearings 4 slide, installed in the walls 9, limiting its course in a horizontal plane. Consequently, the axis 3 moves inside the supporting shaft 1, which can only move with it in the vertical plane.

Thus, the oscillatory movement of the print head 7 along the typed

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My tracks and pulling of the recording medium 2, which is carried out by turning the paper shaft 1, allows dotted printing elements mounted in the print head 7 in parallel along the print line to form a print point field on the recording medium 2.

Claims (1)

DETAILED DESCRIPTION OF THE INVENTION A dotted printing device containing a tape-shaft shaft in a housing, an oscillating movement mechanism and mounted on elastic supports with the possibility of a print head in reciprocating motion in antiphase and a counterweight, characterized in that 0 five print quality and size reduction, the print head and the counterweight are kinematically connected to each other by means of an oscillating movement mechanism fixed to the body stationary, the counterweight is made as a cylindrical axis located inside the housing roller with a length greater than the length of the supporting roller, supporting roller mounted with the possibility of vertical movement between guides inserted into the device and fixed on the body, all elastic supports are made the same new length, moreover, the elastic support of the counterweight are located on both sides of the supporting shaft.  vSw SK at jI SScSSS U