JPS61110568A - Printer device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electrical dot matrix type printer device.

[{, Previous technology] This type of printer device is described in the German Patent Publication (DF-
As) 12 43 432, there is a device described in J. Such a printer device is provided with a support member that guides the recording medium to the printing surface. A plurality of print plates are arranged in a dense manner perpendicular to and perpendicular to this support member, and the print plates are arranged in an insulated manner. are each provided with a support plate made of an electrically non-conductive and thermally conductive +4 material, on which each electrical heating element is mounted. The front end surfaces of these support plates are arranged to face the above-mentioned support member, and the above-mentioned heating elements are arranged so as to overlap each other, so that these heating 'g! A conductive path is connected to each of the ijlli.

However, such devices suffer from the problem of rough raster characteristics and rough edges. That is, in such a device, a plurality of support plates are arranged insulated from each other in the horizontal direction, and heating elements are arranged in the vertical direction, and the spacing between these cannot be made too small. Therefore, it was not possible to increase the resolution of brass or the like very much. These heating elements are configured to be controlled by a control circuit. Further, there is a problem in that the heating elements disposed at the front end of these support plates are worn out due to friction with the recording medium.

For this reason, a protective coating is applied over these heating elements to prevent them from coming into direct contact with the recording medium.
- configured to do so. However, with this J, the energy required for heating increases, and the outline of the dots that make up the matrix (Ill) becomes fainter (J).
There was a problem. In addition, since this conventional Lano block was formed by stacking a large number of vertically arranged print plates 1~ on top of each other, there was a problem in that the characters printed earlier on print 1~ could not be seen.

1. Problems to be Solved by Komei] An object of the present invention is to provide an electric heat-sensitive drum I that has a simple structure and can increase the density of the drum.
・Providing printer devices.

[+1@Means for Solving the Problems and Their Effects 1 The present invention achieves the above object by the configuration as described in the claims.

That is, in the apparatus of the present invention, one or two support plates are arranged along the print line, a plurality of heating elements are arranged on the front end surfaces of these support plates, and the front end surfaces are nitrided. It is configured to prevent wear due to contact with the recording medium. Therefore, no protective coating is required for the heating elements described above, and these heating elements can be brought into direct contact with the recording medium. The support plate also acts as a common electrical conductor for each heating element and quickly diffuses 16 the heat of each heating element. Moreover, this support plate is arranged in the horizontal/J direction at )0 across the entire width of the print area, and the height of A is extremely low, so the characters can be clearly seen when printed.

[Example] Hereinafter, the present invention will be described in detail with reference to the drawings.

1 in FIGS. 1 and 2 is the hood of this device,
A glass window 2 is formed in the hood 1, and a heat-sensitive recording medium 5 is visible through the glass window 2. This recording medium 5 is wound around a platen 4 having a radius r, and the recording medium 5 is configured to be fed by this platen 4 in the direction of the arrow in the figure. The recording medium 5 is configured to be sent out of the device via the slot 3. A print plate 12 is provided below the glass window 2 in a radial direction of the platen 4.

This print plate 12 has a support plate 6 that serves as a support, and the front end surface 6b of this support plate 6 is pressed uniformly over its entire length against the recording medium 5 on the platen. Further, a large number of heating elements 7 are arranged on the side surface 6a of this support plate 6, and these heating elements are arranged on the same plane as the front end surface 6b of this support plate 6 (FIG. 3). These heating elements are each connected via conductive tracks 10 to an integrated control circuit 11 provided on this support plate 6.

These control circuits 11 control these heating elements 7
ll is configured. In addition, an introduction conductor 14 is connected to the rear edge of the support plate 6 via a connector 13, and the 111111 circuit 11 is connected to a central control circuit (not shown) through these, and the central 11m circuit controls and controls these circuits. J: The circuit 11 is controlled.

Further, as shown in FIG. 2, a large number of heating elements 7 are closely arranged on the support plate 6 along the front end surface of the support plate over the entire printing width B.

These heating elements 7 are each connected to a control circuit 11 via a conductive path 10. In addition, this support plate 6
The width of the print width B is wider than the print width B. and,
Both ends of the support plate 6 are supported by a mounting mechanism 19 so as to be adjustable in a direction perpendicular to the plane of the support plate. Also, adjustment in this direction is done via a spring,
The support plate 6 is configured to be pressed against the recording medium 5 by this spring.

FIGS. 3a and 3b show a first embodiment of the printing plate, with FIG. 3a being a partially enlarged vertical cross-sectional view, and FIG. 3b being a front view seen from the recording medium 5 side. This support plate 6 is made of a steel material with good electrical and thermal conductivity. A large number of heating elements 7 are closely arranged on the front edge of the side surface 6a of this support plate 6, and these heating elements 7 are arranged on the same plane as the front end surface 6b of this support plate. , and is also electrically connected to this support plate.

Further, the heating element 7 of the side surface 6a of this support plate is I
! 8.3 minutes excluding the QIJ part is amazing 1
The thickness of this layer 9 is equal to that of the heating recess yg.
7 and are formed to have the same height. And this 1il
19-d On top of the straw insulating layer 9 conductive tracks 10 are deposited, these conductive tracks corresponding to the heating elements 7! 7 are formed spaced apart from each other and are connected to these heating elements 7. The support plate and the front end surface 6b of the heating element 7 are formed into a concave shape corresponding to the curvature of the circumferential surface of the platen 4 having a radius r.

Further, this front end surface 6() is subjected to a known nitriding treatment to prevent wear. Square 1:
In the case of I-Rikus, these must be heated! i7
^ ill is formed equal to the spacing TI of the L dot matrix.

Then, when the platen 4 on the top plate rotates, this pudding 1
.about.width 1] on this recording medium 5.

In this first embodiment, the heating elements are arranged spaced apart from each other in the longitudinal direction of the print section, so that it is not possible to record continuous edges in this direction, although FIGS.
This is possible in the embodiment shown in Figure 5b.

That is, as shown in FIG. 4, in this second embodiment, 2
The printing plates 16 are arranged in mirror symmetry with each other,
As shown in FIG. 5a, it is held in tension by the mounting GJ mechanism 20.

5a is a sectional view taken along the line V-V in FIG. 4, and FIG. 5b is an 11-plane view seen from the recording medium 5 side. The length 12 and the spacing (2) of the heating elements of this printing plate 1-16 are the same as those of the printing plate 12 described above. Therefore, these two print plays 1-
○ corresponds to the back of the platen 4 (Yr) and is arranged at a slight angle to each other, and the side surface 6a of these support plates 6
The heating elements 8 of are opposite each other. And the 51st)
As shown in the figure, the spacing between these heating elements 8 - 2 corresponds to twice the spacing TI of the dot matrix. The heating elements 8 in these two rows are arranged in a staggered manner with an offset of T1 from each other, and the heating elements 8 in these two rows are configured to close the gap between the opposing heating elements.

Also. These heating elements 8 have a length 12. Then, the width of the gap formed between each heating element 8 is configured to be smaller than this length 12. Therefore, by operating twice with these two rows of heating elements 8, , it is possible to print continuous images in the vertical direction of the print line. Also,! '5 When the tensile pulley 4 rotates counterclockwise as shown by the arrow, these two rows of heating elements 18 are shifted by the rotation angle Δ1, and the pudding I/, f is applied so as to fill the gap between them. row heating element 8
1 Moka to 11! It is possible to print one continuous image in this direction as well by moving the image in increments of minutes. Also, the length 12 of these heating elements 8 is so large that the gap between them (it) is large, so that the heating elements partially overlap and a continuous image is printed in the horizontal direction.

Further, FIGS. 6a and 6b show a third embodiment, in which FIG.
This is a diagram seen from the side. This L lint 11 notebook is equipped with a support plate 15, which is mounted on a lint plate 17 of 32 f^M1.17. This support plate (k15) is made of a material with good electrical conductivity and thermal conductivity, similar to the support plate described above, and is twice as thick as these. Continuous band-shaped heating resistance paths 18 are provided on both side surfaces 15a and 15b of the support plate 15, and the height of these heating resistance paths is h.As in the case described above, this heating resistance path An insulating layer, for example, a glaze layer 9, is deposited on the portions other than the portions 18 provided with.A conductive path 10 is formed on this layer 9, and each of these conductive paths is The conductive path 10 is connected to a heating resistance path 18.The width of the conductive path 10 at the connection portion with the heating resistance path 8 is set to a predetermined length 12 corresponding to the width of the dot matrix. Corresponding heating resistance path portions are formed in the heating element section 18'.Since current flows through the path of least resistance, heating t13A corresponding to the width of these conductive paths 10 is formed in the heating element portion 18'.
Only the section 18- generates heat. This thing +, +,
A large number of closely spaced heating elements can be formed (
・, in (17 The number of dots per area can be increased, and the resolution can be increased (q).

Further, as in the second embodiment described above, the conductive paths 10 are arranged at a spacing T2', and the conductive paths 10 on both sides ('IfL
These conductive paths are arranged in a staggered manner with a difference of 1 distance and 1 distance.
You can also use it. In this way, the heating element portions 18- formed corresponding to these conductive paths 10 are arranged so as to close the gaps between them. Therefore, by matching the difference of angle Δ2 between these two rows of heating element sections 18-, the upper heating element section 18- prints, for example, an even number of dots, and the lower heating element section 18'' If you print odd numbered dots with , you can print a continuous image.

A fourth embodiment is shown in FIGS. 7a and 7b, with FIG. 7a being a longitudinal sectional view and FIG. 7b being a front view seen from the recording medium 5 side. In this embodiment, the printing plate 23
This printing plate has a support plate 21, and the front end surface 21b faces the platen 4 at the time of sale 1. However, unlike the embodiments described above, it is made of a material with good electrical insulation and thermal conductivity, such as lamic. The side surface 21a of this support plate 21 is formed to be conductive,
For example, a copper M film 22 is applied by plating or vapor deposition, and heating elements 7 on this side are provided. These heating elements 7 are electrically connected to this copper coating 22.

Further, these heating elements 7 are connected to the front end surface 21b of this support plate 21.
are arranged on the same plane. In this, the copper coating 22 acts as a common electrical conductor for all heating elements 7, and this support plate 21 serves to diffuse the heat generated by these heating elements during operation. Note that this support plate 21 is similar to the print plate 1 shown in FIGS. 3a and 3b.
It may be the same as the two. In addition, these heating elements 7
Alternatively, a heating resistor path 18 as shown in FIGS. 6a and 6b may be provided.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of the device of the present invention taken along the line 1-■ in FIG.
1' sectional view, FIG. 2 is a schematic internal view of the device of the invention. 3a and 3b show the print play 1 to 1 of the first embodiment, FIG. 3a is an enlarged sectional view of part A of FIG. 1, and FIG. 3b is a view from the recording medium side. FIG. 4 to 5b show the printing plate of the second embodiment, FIG. 4 is a front view, and FIG. 5a is a fourth embodiment.
A sectional view taken along the line V-V in the figure, and FIG. 5b is an 11-plane view seen from the recording medium side. Figures 6a and 6b are the first
FIG. 6a is a partially enlarged cross-sectional view, and FIG. 6b is a front view seen from the recording medium side. 7a and 7b show the printing plate of the first embodiment, FIG. 7a is a partially enlarged sectional view, and FIG. 7b is a front view seen from the recording medium side. 4... Platen, 5... Recording medium, 6... Support plate, 7... Heating element, 8... Heating element, 10... Conductive path, 12... Print plate, 15... ... support plate, 16 ... print play], 17 ... print l
-Play 1~. 18... Heating resistance path, 21... Support plate, 22... Copper 1fk'123... Pudding 1 ~ Plate Applicant's agent Patent attorney Takehiko SuzuhikoFig, 3b Procedural amendment (blade side, 16 ♀,・3・Suspension6,1 Mr. Manabu Shiga, Commissioner of the Patent Office),...: 1. Display of the case Japanese Patent Application No. 1983-228048 2. Name of the invention printer device 3. Relationship with the Nagisa case to be amended Patent applicant International Standard Electric Co., Ltd.
2 4 Raysion 4, engraving of the agent's drawing (no changes to the content)

Claims (13)

[Claims] (1) An electrical dot matrix type printer device comprising at least one printing plate disposed perpendicularly to the recording medium, the printing plate including a support plate and In a device comprising a plurality of arranged heating elements and conductive paths provided on the support plate and respectively connected to the heating elements separately, the printing plates 12, 16, 17, 23 are connected to the printing line. The support plates 6, 15, which are arranged in parallel,
At least one side 6a, 15a, 15b, 21a of 21
is provided with the plurality of heating elements 7, 8, 18, which are connected to the front end surface 6b of the support plate 6, 15, 21.
, 15c, 21b, and is disposed on the same plane as the supporting plates 6, 15, 21. (2) The printer device according to claim 1, wherein the support plates 6 and 15 are made of a conductive material. (3) The printer device according to claim 1, wherein the support plate 21 is made of an insulating material, and a side surface thereof is formed as a conductive side surface 21a. (4) The printer device according to claim 2 or 3, wherein the support plates 12, 16, 17, and 21 are made of a material with good thermal conductivity. (5) one end of the heating element 7, 8, 18 is connected to the support plate or conductive side surface 6a, 15a, 15b;
In addition, the other end is connected to the conductive path 10.
The printer device according to any one of Items 1 to 1. (6) Side surfaces 6a, 15a, 15b, 21b of the support plate
An insulating layer (glaze layer 9) is coated on the parts other than the parts where the heating elements 7, 8, and 18 are provided,
The thickness of this insulating layer is determined by the height h of the heating elements 7, 8, 18.
A printer according to any one of claims 1 to 5, characterized in that a conductive path 10 is provided on this insulating layer up to the heating element 7, 8, 18. Device. (7) The front end surfaces 6b, 15c, 21b of the support plates 6, 15, 21 on which the heating elements 7, 8, 18 are provided are formed in a concave shape corresponding to the curved surface of the peripheral surface of the platen 4. 2. A printer device according to claim 1, characterized in that: (8) Front end surfaces 6a, 15c of the support plates 6, 15, 21
, 21b are nitrided. 7. The printer device according to claim 6, wherein the nitriding treatment is performed. (9) The width of the support plate 6, 15, 21 is formed wider than the width B of the print field, and the support plate is clamped in the plane direction of the support plate and perpendicularly thereto by clamping means 19, 20 operating in the horizontal direction. The printer device according to claim 1, wherein the printer device is supported so as to be adjustable in a direction. (10) Two supporting plates 6 are arranged apart from each other, and the spacing T_2 between the heating elements 8 on these printing plates is
corresponds to twice the dot matrix spacing T_1,
Further, the length 12 of these heating elements 8 is formed to be larger than the spacing between them, and the heating elements 7 and 8 on these two support plates 6 are arranged in a staggered manner with respect to each other by a spacing T_1. The printer device according to claim 1, characterized in that: (11) One support plate 15 is provided, and heating elements are provided on both sides 15a and 15b of this support plate, and these heating elements are arranged on the same plane as the front end surface 15c of this support plate. The printer device according to claim 10, characterized in that: (12) The spacing T_2 of the heating elements corresponds to twice the spacing T_1 of the dot matrix, and the length 12 of these heating elements is greater than these spacings, and the heating elements on both sides 15a and 15b are The printer devices according to claim 11, wherein the printer devices are arranged in a staggered manner with an interval T_1. (13) A continuous heating resistance path 18 is formed, to which conductive paths 10 are connected, the width of these conductive paths corresponding to the width 1 of each heating element section 18'. A printer device according to any one of claims 1 to 12.