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Point-line printer

A printer and dot printing technology, which is applied in the composition field of the hammer mechanism, can solve the problems of uneven distribution and inability to obtain uniform printing force, etc., and achieve the effect of high-quality printing quality

Inactive Publication Date: 2011-06-22
RICOH PRINTING SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the printing hammer at the end of each module constituting the hammer mechanism part, uneven distribution occurs in the magnetic flux passing through the magnetic circuit constituting the printing hammer, and uniform printing force may not be obtained.

Method used

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Experimental program
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Embodiment Construction

[0026] First, use Figure 6 The overall general configuration of the printing device will be described. Figure 7 Both ends of the shown hammer mechanism unit 50 are slidably supported by linear motion bearings 53 , 53 , and are reciprocated in the truss direction by a reciprocating mechanism unit 51 .

[0027] Such as Figure 4 as shown, Figure 7 The illustrated printing hammers 52 composed of hammer springs 10 and hammer pins 11 are arranged in a plurality in the truss direction at a predetermined pitch. The platen 23 receiving the printing force of each printing hammer is arranged at a predetermined interval so as to face the hammer mechanism unit 50 via the printing paper 22 and the ink ribbon 21 .

[0028] The endless ink ribbon 21 to which tension is applied in advance by the ribbon plate 59 is a mechanism that is wound up by the tape drive roller 55 via a plurality of tape guides 56 and returned to the tape cassette 54 again.

[0029] The reciprocating mechanism unit...

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PUM

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Abstract

A point-line printer. The present invention provides a printing device, capable of going over girders directions to obtain uniform and high printing quality without ascend of product costs. The invention is characterized in that a side face magnet yoke which is attached to a front magnet yoke composed of a structure of overlapping electromagnetic steel plates is formed by a prescribed number in several layers of the front magnet yoke side, other side face magnet yoke arranged on an end part of a neighboring front magnet yoke is formed by a prescribed number in several layers of hammer coil side, and the two side face magnet yokes are different.

Description

technical field [0001] The present invention relates to a dot-line printer for printing dots by a printing hammer, and more particularly to the configuration of a hammer mechanism that drives the printing hammer. Background technique [0002] A dot-line printer, which is a typical printing device that performs dot printing, is a printer that moves a hammer mechanism to which a print hammer that performs dot printing is reciprocated in the direction of the truss to a reciprocating mechanism to perform printing. [0003] Figure 7 It is an enlarged sectional view of the hammer mechanism part of the printing device. As shown in the drawing, the leaf spring-shaped print hammer is configured by attaching a hammer pin 11 to the tip of a hammer spring 10 which is a magnetic body. The hammer spring 10 is mounted on the yoke base together with the front yoke 15 through bolts 17 on the magnetic circuit formed by the comb yoke 12, the magnet 13, the yoke base 14, the front yoke 15, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/28
Inventor 清水武司
Owner RICOH PRINTING SYST