CN100395115C - Dot-matrix printer - Google Patents
Dot-matrix printer Download PDFInfo
- Publication number
- CN100395115C CN100395115C CNB2003101036445A CN200310103644A CN100395115C CN 100395115 C CN100395115 C CN 100395115C CN B2003101036445 A CNB2003101036445 A CN B2003101036445A CN 200310103644 A CN200310103644 A CN 200310103644A CN 100395115 C CN100395115 C CN 100395115C
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- Prior art keywords
- colour band
- mentioned
- printing
- ribbon guide
- guide parts
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Abstract
To obtain uniform printing in a digit direction by suppressing instability of a travel position of an ink ribbon, and holding the travel position of the ink ribbon at a hammer mechanism part front face nearly constant at all times of a dot printer. A guide is set at the front face of the hammer mechanism part to suppress travel instability of the ink ribbon. Clear printing can be obtained by securing a proper travel position of the ink ribbon also at the time of printing a high-density printing pattern.
Description
Technical field
The present invention relates to a kind of dot matrix printer that carries out dot lattice printing, relate to a kind of shift position and maintain mechanism on the tram colour band (inkribbon).
Background technology
In carrying out the representational PRN device of dot lattice printing, dot matrix printer is for example arranged.
Dot matrix printer is, make the hammer mechanism portion that disposes the printing hammer (hammer) that carries out dot lattice printing along laterally, promptly vertical with the moving direction of the print paper of paper feeding mechanism direction moves back and forth, thereby the printer that prints.Printing hammer is equipped with print needle at the front end of leaf spring, by discharging the elastic potential energy of putting aside in advance on the leaf spring, makes the printing hammer action, by along the colour band that laterally moves, carries out dot lattice printing on printing paper.
Below, prior art is described in detail.
Utilize Fig. 3 and Fig. 4 that the structure of dot matrix printer is described.Fig. 3 is the front view of the formation of the existing dot matrix printer of expression.Fig. 4 is the front view of the relation of existing hammer mechanism portion of expression and colour band.
The hammer mechanism portion 1 of the printing hammer 2 that carries out mosaic printing has been installed, has been loaded in the shuttle mechanism portion 3, along laterally moving back and forth.Bear the lettering pressing plate 4 of the hitting power of printing hammer 2, the colour band 5 and the print paper 6 that laterally move across the edge are with the 1 relative configuration of hammer mechanism portion.
In addition, as shown in Figure 3, ribbon unit portion 11 uses to colour band 5 and applies the strap brake 12 of tension force, the supported on both sides colour band 5 of hammer mechanism portion 1 by in hammer mechanism portion 1 front, by band roller 14 formations of the tape guide parts 13 of keeping oblique (skew) angle and winding colour band 5.
As shown in Figure 4, colour band 5 is kept the oblique angle with respect to hammer pin row 15 and is moved, and makes in horizontal printing and does not produce the gradation of drop-out colour difference.
Here,, when particularly carrying out the printing of high print density, exist, thereby cause the situation that depart from the shift position of colour band by the influence of the hitting power of each printing hammer according to the kind of print pattern.In addition, because the paper that is subjected to carrying out the part printed becomes the concavo-convex influence of embossing shape because of the hitting power of printing hammer,, thereby influence the shift position of colour band for the mobile formation resistance of colour band.
Therefore, in order to keep the mobile stability of colour band, adopted by with the brake force of strap brake, the rotary speed of band roller, even the measure of suitableization of tape speed reaches the purpose of the stabilisation of Tape movement.
Yet, for example,,, follow printing to the tension force deficiency that the colour band of hammer mechanism portion front applies if the suitable value of the braking-force ratio of strap brake is low, be subjected to the influence of the hitting power of printing hammer, cause that the shift position of colour band is departed from.Consequently, owing to can not suitably keep the oblique angle of colour band, colour band can not be hit equably by the hammer pin, so become the uneven printing of gradation of drop-out colour.Have again, depart under the great situation in the shift position of colour band, the hammer pin breaks away from from the mobile path of colour band, causes the part of a horizontal end to print the lettering shortcoming that can not carry out, or, cause the Tape movement fault on the band roller because of the have some setbacks colour band that caused of colour band mobile twines etc.
At this situation, in the prior art, for example have a kind of when feeling that by sensor the shift position of colour band departs from, and when depart from the shift position that has produced colour band, print the winding action that action continues colour band by temporary transient interruption, or temporary transient according to the rules limit value is divided into the high density printing pattern repeatedly, carry out the proportioning restriction to printing action, reduce of the influence of the hitting power of printing hammer to colour band, thus the printer (for example with reference to patent documentation 1) that depart from the shift position of correction colour band.
(patent documentation 1)
Te Kaiping 8-90884 communique
As mentioned above, in dot matrix printer,, be necessary correctly to keep the shift position of colour band in order laterally to be printed uniformly.
But, follow in recent years to the high speed of dot matrix printer and the further requirement of high-performance costization, assemble the printing that realizes more at a high speed in order to utilize hammer pin still less, increase the cycle of each printing hammer of unit interval, brought the problem that to guarantee the mobile stability of colour band thus.Consequently, might when the printing of high density printing pattern, on horizontal full line, can not be printed uniformly because depart from the shift position of colour band.
Summary of the invention
Therefore, the objective of the invention is to, a kind of unstability that suppresses the shift position of colour band is provided, make the shift position of the colour band of hammer mechanism portion front keep substantially invariable printing equipment usually.
In order to address the above problem, the present invention relates to a kind of dot matrix printer, wherein possess: dot lattice printing mechanism with a plurality of type elements; Make this dot lattice printing mechanism along the reciprocating reciprocating mechanism of transverse direction; Be configured to relative with above-mentioned dot lattice printing mechanism to the ribbon unit portion of driving colour band; Paper feeding mechanism with fed printing sheet, it is characterized in that, above-mentioned printing mechanism portion also possess to the ribbon guide parts of the outstanding aciculiform shape of the direction of the face quadrature of above-mentioned colour band, above-mentioned ribbon guide parts are configured to: the position of end of the width of above-mentioned colour band is limited in the side of above-mentioned ribbon guide parts.
In addition, above-mentioned ribbon guide parts only are disposed at an end side of the width of above-mentioned colour band.
In addition, from observing with the direction of the face quadrature of above-mentioned colour band, the front end of above-mentioned ribbon guide parts has the sectional area also bigger than other parts of above-mentioned ribbon guide parts.
Be provided for suppressing the mobile instable guiding parts of colour band by front,, also can guarantee the shift position of the colour band that suits, thereby obtain distinct printing even when carrying out the printing of high density printing pattern in hammer mechanism portion.
Description of drawings
Fig. 1 is the side view of expression as the hammer mechanism portion of an example of the present invention.
Fig. 2 is the front view of the relation of the hammer mechanism portion of presentation graphs 1 and colour band.
Fig. 3 is the vertical view of expression dot matrix printer structure.
Fig. 4 is the front view of the relation of existing hammer mechanism portion of expression and colour band.
Among the figure: 1-hammer mechanism portion, 2-printing hammer, 3-shuttle mechanism portion, 4-lettering pressing plate, 5, the 18-colour band, the 6-print paper, 7-hammer pin row, 11-ribbon unit portion, 12-strap brake, 13-tape guide parts, 14-is with roller, 15-hammer pin row, 16-ribbon guide pin, the colour band position when 17-loads.
The specific embodiment
Below, with reference to description of drawings the present invention.
Fig. 1 and Fig. 2 are side view and the front views as the hammer mechanism portion 1 of the mobile instable inhibition mechanism (ribbon guide parts) of the subsidiary color band of an example of the present invention.
Though basic formation is identical with the hammer mechanism portion 1 of prior art shown in Figure 4, in the present invention, depart from colour band 18 shift positions when suppressing the printing of high density printing pattern, and ribbon guide pin 16 is installed.
As mentioned above, when carrying out the high density patterns printing, be subjected to the influence of the hitting power of each printing hammer, when rising on the shift position of colour band, the limit end in contact of ribbon guide pin 16 and colour band 18, to the effect of colour band 18 performance guiding, thereby depart from the shift position that can suppress colour band 18.
In addition, in mechanism shown in Figure 1, when machine is set and more during Ribbon Change, the operator does not need expressly to this mechanism's assembling colour band.Promptly, as shown in Figure 1, the position 17 of the colour band when constituting the assembling colour band, by the initial actuating of machine after the assembling when colour band applies tension force, naturally be assembled into the downside of ribbon guide pin, even the operator does not pay special attention to, also can be with correct position assembling colour band 18 and ribbon guide pin 16.
Have again, in the formation of this example, owing to can depart from, limit and just can finish so need not to carry out printing action proportioning as the high density printing pattern implemented in the prior art by the shift position of OILS STRUCTURE DEPRESSION colour band.Therefore, can prevent or relax the print speed of following proportioning restriction and reduce.
In this example, though colour band is illustrated along the situation of ascent direction change during with the printing of high density printing pattern,, also consider along the situation of rightabout change up and down according to the formation of hammer mechanism portion etc.In this case, also can concern in the position that rightabout up and down constitutes colour band and tape guide pin.
Elaborate as top,, the mobile instable guiding parts that suppresses colour band is set, when the printing of high density printing pattern, guarantee the shift position of the colour band that suits, can obtain the printing of distinctness by front in hammer mechanism portion according to the present invention.
Claims (3)
1. a dot matrix printer wherein possesses: the dot lattice printing mechanism with a plurality of type elements; Make this dot lattice printing mechanism along the reciprocating reciprocating mechanism of transverse direction; Be configured to relative with above-mentioned dot lattice printing mechanism to the ribbon unit portion of driving colour band; Paper feeding mechanism with fed printing sheet is characterized in that,
Above-mentioned printing mechanism portion also possess to the ribbon guide parts of the outstanding aciculiform shape of the direction of the face quadrature of above-mentioned colour band, above-mentioned ribbon guide parts are configured to: the position of end of the width of above-mentioned colour band is limited in the side of above-mentioned ribbon guide parts.
2. dot matrix printer according to claim 1 is characterized in that, above-mentioned ribbon guide parts only are disposed at an end side of the width of above-mentioned colour band.
3. dot matrix printer according to claim 1 is characterized in that, from observing with the direction of the face quadrature of above-mentioned colour band, the front end of above-mentioned ribbon guide parts has the sectional area also bigger than other parts of above-mentioned ribbon guide parts.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002322608A JP2004155038A (en) | 2002-11-06 | 2002-11-06 | Dot line printer |
| JP2002322608 | 2002-11-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1498766A CN1498766A (en) | 2004-05-26 |
| CN100395115C true CN100395115C (en) | 2008-06-18 |
Family
ID=32802748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101036445A Expired - Fee Related CN100395115C (en) | 2002-11-06 | 2003-11-06 | Dot-matrix printer |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2004155038A (en) |
| CN (1) | CN100395115C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100396496C (en) * | 2005-01-21 | 2008-06-25 | 理光打印系统有限公司 | Point-and-raw type printer |
| CN100396495C (en) * | 2006-08-18 | 2008-06-25 | 中外合资南京富士通计算机设备有限公司 | Automatic detection and compensation method for broken needle of stylus printer |
| JP2011194878A (en) * | 2010-02-24 | 2011-10-06 | Ricoh Printing Systems Ltd | Dot-line printer |
| CN102189811A (en) * | 2010-02-24 | 2011-09-21 | 理光打印系统有限公司 | Dot wire printer |
| CN103660596B (en) * | 2012-09-25 | 2016-01-13 | 精工爱普生株式会社 | Dot matrix printer and control method thereof |
| CN109203735A (en) * | 2018-06-30 | 2019-01-15 | 湖州天骊正隆电子科技有限公司 | A kind of printer color tape ontology is stably connected with mechanism |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4157224A (en) * | 1977-08-05 | 1979-06-05 | Teletype Corporation | Ribbon advancing mechanism |
| US5122003A (en) * | 1990-01-19 | 1992-06-16 | Hitachi Koki Co., Ltd. | Dot line printer having ink ribbon guides |
-
2002
- 2002-11-06 JP JP2002322608A patent/JP2004155038A/en active Pending
-
2003
- 2003-11-06 CN CNB2003101036445A patent/CN100395115C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4157224A (en) * | 1977-08-05 | 1979-06-05 | Teletype Corporation | Ribbon advancing mechanism |
| US5122003A (en) * | 1990-01-19 | 1992-06-16 | Hitachi Koki Co., Ltd. | Dot line printer having ink ribbon guides |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1498766A (en) | 2004-05-26 |
| JP2004155038A (en) | 2004-06-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: RICOH CO. LTD. Free format text: FORMER OWNER: RICOH PRINTING SYSTEMS LTD. Effective date: 20130508 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130508 Address after: Tokyo, Japan Patentee after: Ricoh Co., Ltd. Address before: Tokyo, Japan, Japan Patentee before: Ricoh Printing Systems Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080618 Termination date: 20171106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |