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Point-line printer

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

Inactive Publication Date: 2010-05-26
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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Examples

Experimental program
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Embodiment Construction

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

[0027] Such as Figure 4 As shown, Figure 7 The illustrated print hammer 52 composed of the hammer spring 10 and the hammer pin 11 is arranged in plural in the truss direction at a predetermined pitch. The platen 23 that receives the printing force of each printing hammer is arranged at a predetermined interval so as to face the hammer mechanism 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 by the tape drive roller 55 via a plurality of tape guides 56 and returns to the tape cassette 54 again.

[0029] The reciprocating mechanism portion 51 includes a recipr...

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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 that performs dot printing with a printing hammer, and particularly relates to the structure of a hammer mechanism that drives the printing hammer. Background technique [0002] The dot-line printer, which is a representative printing device that performs dot printing, is a printer in which a hammer mechanism section mounted with a printing hammer for dot printing is reciprocated in the truss direction through a reciprocating mechanism section to perform printing. [0003] Figure 7 It is an enlarged cross-sectional view of the hammer mechanism of the printing device. As shown in the figure, a plate spring-shaped printing hammer is configured by attaching a hammer pin 11 to the tip of a hammer spring 10 that is a magnetic body. The hammer spring 10 is mounted on the magnetic circuit formed by the comb-shaped yoke 12, the magnet 13, the yoke base 14, the front yoke 15, and the side yoke 16, together with the ...

Claims

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Application Information

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