SU1729801A1 - Two-side printing device - Google Patents

Abstract

The invention relates to sign-type percussion printing devices and allows for an increase in functionality and speed by simultaneously sealing two storage media. The printing elements are made in the form of plates with dotted shock sections located on opposite sides, and are mounted with the possibility of rolling in two mutually opposite directions, 5 or more.

Description

The invention relates to printing devices and can be used in computer input / output devices.

The aim of the invention is to enhance the functionality and increase the speed.

Fig. 1 shows the module construction in perspective; figure 2 - the module housing; on fig.Z - section aa in figure 2; figure 4 - the form of the printing plate; Fig. 5 is a mosaic printing head and its position in a printing device, general view.

The mosaic printhead contains a series of modules (FIG. 1); each module has a housing 1 (FIG. 2) made of a dielectric material. In case 1, rectangular openings 2 are provided for mounting permanent magnets 3 and through slots 4 and 5 for securing elastic petals 6 and 7. In case 1, recesses are made on both sides half the thickness of case 1 (Fig. 3). In each recess a certain number of printing elements 8 (Fig. 4), made of foil dielectric, is installed. Each element 8 has two point impact sections 9 and 10. In the slots of the printer

element 8 are fixed elastic petals 6 and 7, made in the form of pieces of spring wire, the diameter of which does not exceed the thickness of element 8. On the surface of element 8 there is a flat conducting coil on both sides. The coils are connected to the electronic control unit via an electrical connector 11 installed in the lower part of the housing 1 of the module. The fastening of the elastic petals 6 in the through groove 4, and the petals 7 in the groove 5 provides an elastic suspension of the printing elements 8 in the housing 1.

The assembly of modules 1 into a single mosaic printhead (Fig.5) results in flat coils being placed in a magnetic field formed by permanent magnets 3 of adjacent modules 1. At the same time, the shock sections 9 and 10 are arranged in two continuous parallel rows the entire length of the print head. The length of the head is determined by the width of the information carriers 12 and 13, which are located in front of the shock sections 9 and 10, respectively.

On top of the mosaic print head is covered with a safety cap 14.

The mosaic print head works as follows.

Xi

eight

00 Oh

The flow of a current pulse along a flat conductive coil causes the printing element 8 to deviate from its equilibrium position. As a result, the shock sections 9 or 10, through a dye tape (not shown), produce an impression of points on the carriers 12 or 13. The deviation of the printing elements 8 in one direction or the other depends on the direction of the current in the flat coil. The choice of current direction, as well as the choice of printing elements, is carried out by an electronic control unit (not shown) connected to two information channels.

The mode of operation of the control unit is selected so that simultaneously with printing the points, for example, on the carrier 12, the carrier 13 moves to the next line, and then when printing the points on the carrier 13, a tape mechanism (not shown) moves the carrier 12. The resulting print speed on the two carriers x 12 and 13 remain the same as when printing on one media.

Using the proposed design allows one mosaic print head to record information on two media from

th

two independent sources of information, which increases the functionality of the printing device and its speed.

5F o rumlula and z o bre tem

A printing device for two-sided printing containing sign-forming elements, a paper-supporting device, information carriers and a red ribbon 10 located on two opposite sides of the sign-forming elements, characterized in that, in order to expand the functionality and increase the speed of

15, the input of information through two independent channels, the sign-forming elements are made in the form of a mosaic print head containing a group of modules, each of which consists of

20 of the housing and the printing elements arranged in it, the printing elements are installed in the housing with the possibility of displacement in both directions from the equilibrium position, and have dotted opposite sides of the printing, dotted impact areas, and the paper supporting device are made in the form of two identical supporting shafts.

FIG. 2

A-A

13

.- :-); ..

Claims (1)

5 FORMULA AND PORTRAIT A two-sided printing device comprising sign-forming elements, a paper support device, storage media and an ink ribbon located on two opposite sides of the sign-forming elements, characterized in that, in order to expand functionality and increase speed for 15 by inputting information through two independent channels, sign-forming elements are made in the form of a mosaic print head containing a group of modules, each of which consists of a housing and printing elements placed in it, the printing elements setting the print speed on two media 12 and 13 remains the same, as when printing on one storage medium. Using the proposed 25 design allows one mosaic printhead to produce flaxes in the housing with the possibility of displacement on both sides of the equilibrium position, and have point impact sections facing the opposite sides of the print, and the paper support device is made in the form of two identical support Figure 2 Aa Figz