JPH0439035Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention transports a carriage in a direction (Y-axis direction) perpendicular to the recording paper transport direction (X-axis direction), and connects a plurality of recording pens to this carriage. The present invention relates to a recording device in which recording pens are sequentially arranged in the Y-axis direction, and each recording pen is pressed by a single hammer to bring the pens into contact with recording paper.

[Conventional technology]

Since such a recording device is configured to press a plurality of recording pens with a single hammer, which recording pen engages with the hammer means and determines the recording state at the time of starting recording (for example, at power-on or initialization). There is a need to know whether this is the case, or to realize a standard recording state for engaging a particular recording pen with the hammer means at this point.

Therefore, in conventional recording devices of this type, the detection of the recording state of the recording pen or the realization of the reference state is performed in a fourth manner.
This was done by the means schematically shown in the figure. Fourth
In the figure, 11 is recording paper, 21 is a carriage,
22 is a recording pen, 23 is a hammer means, 3 is a side plate,
31 is a positioning protrusion.

A recording pen 22 mounted on a carriage 21 moves toward and away from the recording paper 11 in accordance with the vertical movement of a hammer 23.

In this case, at the start of recording, which recording pen 22 (in the example shown in FIG. 4 has six recording pens) is engaged with the hammer 23 to achieve the recording state? I don't know if there is. This causes problems in selection and position control of the plurality of recording pens 22, and recording cannot be performed. Therefore, when starting recording, it is necessary to always detect the recording pen 22 in the recording state or to set a reference recording state.

For this reason, as shown in FIG. 4, in the conventional device, a positioning protrusion 31 is provided on the side plate 3, and at the time of starting recording, the hammer 23 and the positioning protrusion 31 are engaged, and the outermost recording pen 22 is set as a reference. The recording state is as follows.

[Problem that the invention attempts to solve]

Therefore, in the conventional device, the carriage 21
Despite the moving area, there was an unrecordable area where recording was not possible.

The present invention aims to improve this point.

[Means for solving problems]

Therefore, in the present invention, a sensor is provided to detect the position of the hammer that presses the recording pen. In this case, a plurality of sensors may be provided corresponding to each recording pen, or only one sensor may be provided corresponding to a specific recording pen.

[Effect]

At the time of starting recording, it is detected which recording pen is in the recording state. If a sensor is provided for each recording pen, direct detection is possible. When a specific recording pen is provided with a sensor, the hammer is scanned (moved over each recording pen) at the start of recording to achieve a standard recording state.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

1 and 2 are structural explanatory diagrams showing one embodiment of the present invention, FIG. 1 is a perspective explanatory view thereof, and FIG. 2 is a side view thereof. In the figure, 1 is a recording paper transport means, which includes a recording paper 11 and a drum 1.
Although the drum 12 is not shown, it is coupled to a recording paper drive motor and transports the recording paper 11 in the X-axis direction.

2 is a carriage transfer means, which includes a carriage 21,
A plurality of recording pens 22 (recording pens 22a to 22
d), guide shaft 23, hammer 24, hammer support structure 25, positioning plate 26, hammer support member 27,
It has a solenoid 28 and a sensor 29.

The carriage 21 is slidably mounted on two guide shafts 23, and although not shown in the drawing, the carriage 21 is connected to a carriage transfer motor via a pulley and a wire, and the
Move in the Y-axis direction perpendicular to the axial direction.

A plurality of recording pens 22 are sequentially arranged on the carriage 21 in the same direction as the carriage transport direction (Y-axis direction). At this time, the recording pen 22 is provided with a spring 221 (FIG. 2), and the recording pen 22 is always placed in a direction (upward) that keeps the recording pen 22 out of contact with the recording paper 11.
is energized.

The hammer 24 is slidably and rotatably mounted on a hammer rotation shaft 251 of the hammer support structure 25 . Furthermore, a protrusion (not shown) is formed on the lower surface of the center of the hammer 24, and this protrusion engages with a recess 261 provided in the positioning plate 26 to correspond to each pen. Therefore, hammer 2
4 are positioned corresponding to each pen by this positioning plate 26. A hammer connecting member 241 formed in the shape of a leaf spring is screwed to the rear end of the hammer 24, and one end thereof is connected to the hammer supporting member 27.
The other end is engaged with a sensor 29 (an optical sensor is used in this embodiment) as shown in FIG. In this embodiment, the sensor 29 is connected to the leftmost recording pen 22.
It is provided at a position corresponding to a, and the hammer 24
When the pen 22a engages with the leftmost recording pen 22a, that is, enters a recording state, an output is generated.
The hammer support member 27 is engaged with a solenoid 28, and is driven up and down by the solenoid 28.

With such a configuration, the hammer 24 slides and the positioning plate 26 realizes a desired recording state with the recording pen 22, thereby functioning as a pen selection means. At this time, by driving the solenoid 28, a desired movement of the recording pen 22 toward and away from the recording paper 11 is performed. Therefore, by appropriately controlling these operations, the carriage transfer operation, and the recording paper transfer operation, the necessary records can be obtained.

3 is a side plate that supports each of the above-mentioned means.

A hammer holding plate 32 is provided on the side plate 3 so as to be rotatable over the entire carriage transfer width.
A pulley 321 is provided at one end of the hammer holding plate 32, and although not shown in the drawing, this pulley 321 is engaged with a motor via a belt and rotates by a predetermined angle. When the motor is operated and the hammer press plate 32 is in the down state, that is, in the state in which the hammer 24 is pressed (FIGS. 1 and 2), the hammer 24 is prevented from sliding with respect to the hammer rotation shaft 251. Therefore, in this state, when the carriage 21 is moved, the hammer 24 remains in that position, and as a result, the plurality of recording pens 2
2, a scanning means is implemented to select a desired recording pen 22. More specifically, since the hammer holding plate 32 is mounted over the entire moving area of the carriage 21, the carriage is moved while the hammer 24 is held down by this holding plate 32 (for example, as shown in FIG. In this state, when the hammer 24 itself does not move (moves from the upper left to the lower right in the drawing), the recording pens 22a to 22d with which the hammer 24 engages are scanned.

Therefore, by controlling the amount of movement of the carriage 21 while the hammer 24 is pressed down by the hammer presser plate 32, the recording pens 22a to 22a can be moved.
22d can be selected. When the hammer presser plate 32 is up, the hammer 24
moves without changing its position relative to the corresponding recording pen 22 of the carriage 21.
).

Next, the operation at the start of recording will be explained with reference to FIGS. 1 and 2.

At the start of recording, that is, at the time of power-on or initialization, a reference recording state is first achieved. That is, at this point, the hammer 24
It is unclear which of the plurality of recording pens 22a to 22d the recording pen is engaged with to achieve the recording state. The hammer press plate 32 is lowered and the carriage 21 is moved. This operation means that the hammer 24 is scanning each of the recording pens 22a to 22d. At this time, the hammer connecting member moving integrally with the hammer 24 is detected by the sensor 29 (FIG. 2), and the detection output is transmitted to an internal electric circuit (not shown). This point becomes a reference recording state, and this recording state serves as a reference for subsequent recordings, and selection and position control of the recording pens 22a to 22d are performed.

FIG. 3 shows an example of actual recording by the recording apparatus of the present invention. As shown in FIG. 3a, the outermost recording pen 22a or 22d of the plurality of recording pens 22a to 22d is connected between both end portions AB and CD in the width direction of the recording paper 11.
The central area BC of the recording paper 11, which is a common movement area of all the recording pens 22a to 22d, is recorded by a single recording pen, and all the recording pens mounted on the carriage 21 are driven to record. This is a recording area for performing the following operations.

For example, in the data area shown between AB, sub data (character or code recording) related to the main data recorded in the central area where each pen can record is performed using the recording pen 22a on the left side of the carriage 21, and the CD
In the right data area shown in between, only the recording pen 22d on the right side of the carriage 21 is driven to perform similar recording.

As mentioned above, this recording device has a motor that moves the carriage in the Y-axis direction according to a signal, and also selectively drives each recording pen attached to the carriage to record with each recording pen. Since a control means (for example, a CPU) for controlling each of these means is provided in the internal electric circuit, each of the pens is controlled by a predetermined program, thereby making it possible to perform the above-described recording. In addition, FIG. 3b uses recording paper 11 on which item names for recording sub-data are printed in advance.

[Effect of idea]

As described above, according to the present invention, it is possible to effectively utilize the waste area that was conventionally an unrecordable area.

[Brief explanation of the drawing]

1 and 2 are configuration explanatory diagrams showing one embodiment of the present invention, FIG. 3 is an explanatory diagram showing an example of recording by a recording device related to the present invention, and FIG. 4 is an explanatory diagram of a conventional recording device. be. 1... Recording paper transfer means, 2... Carriage transfer means, 3... Side plate.

Claims (1)

[Scope of Claim for Utility Model Registration] A recording device that moves recording paper in the X-axis direction and transports a carriage in the Y-axis direction perpendicular to the X-axis direction, wherein a plurality of recording pens are mounted on the carriage in the Y-axis direction. The recordable areas of each of the recording pens of the plurality of recording pens are offset by the arrangement interval of each recording pen in the Y-axis direction, and each of the pens is driven to print on the recording paper. In a recording device configured to perform desired recording with each pen, the recording paper has a common recording area in which any of the recording pens of the plurality of recording pens mounted on the carriage can move, and an edge other than the common recording area. For the common recording area, all the recording pens mounted on the carriage are driven to perform recording using all the recording pens, and for the end area, A recording apparatus provided with a control means for driving only a recording pen that is movable within this end area to cause only this recording pen to perform recording.