JPS6148429B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic format creation device for a printer.

2. Description of the Related Art Conventionally, printers and the like have used paper on which ruled lines and the like are printed.
When a slip with a printed format is used, the handling operation of setting the slip on the printer becomes necessary, placing an extra burden on the operator. Moreover, there was a problem that the cost of the ticket itself was high. Another problem was that once the format of the slip was determined, it was difficult to change it because it was being printed.

A method has been proposed in which the format is printed simultaneously with the text as an output device for a computer or the like using electrophotographic recording, but in this case, the disadvantage is that the device is large and expensive, and it is not possible to make simultaneous copies. It was hot.

It is an object of the present invention to solve the above-mentioned conventional problems and to provide a printer that has a simple structure and can easily print ruled lines.

The details of the present invention will be explained with reference to embodiments shown in the figures.

In FIGS. 1 and 2, a sheet of paper 2 is passed around a platen 1 of the printer, and the sheet of paper 2 is pressed against the platen 1 by a pressure roller 3 and a paper bail 4, and is fed by the rotation of the platen 1. It goes without saying that the present invention is also applicable to printers that do not use platens.

A printing device 5 faces the printing position on the paper 2.
is provided. The printing device includes a character printing wheel 6 on which type is provided on the circumference, and a character printing wheel 6.
A striking device, for example, a printing hammer 7, which strikes one type of type on the paper 2 at the printing position to print, and a motor that rotates a printing wheel 6 to select the type to be printed, and is attached to the axis of the platen 1. It includes a carriage 8 that moves in parallel to any desired printing position.

Although it is outside the scope of the present invention, a device for drawing vertical ruled lines can be provided as follows.

A holder plate 15 is swingably supported by a support shaft 16 on a support frame 9 attached to the printer, a shaft 10 is fixed to the holder plate 15, and a plurality of support members 11 are attached to the shaft 10 in a direction in which the carriage 8 moves. is supported so as to be movable parallel to the The support member 11 can be fixed in any position by the operator. A holder 13 is supported by the support member 11 so as to be movable in its axial direction, and a writing instrument 12 such as a ballpoint pen can be attached to the holder 13. The holder 13 receives a force that presses the writing instrument 12 against the paper 2 within a predetermined range under the action of a spring 14.

A plunger of a solenoid 17 fixed to the support frame 9 is pivotally attached to the holder plate 15 . The holder plate 15 receives a force to separate the writing instrument 12 from the paper due to the action of a spring 18.
When the solenoid 17 is energized, the holder plate 15 tilts downward and the writing instrument 12 comes into contact with the paper.
When the paper 2 is fed by the platen 1 while the writing instrument 12 is in contact with the paper, vertical ruled lines are written on the paper. The number of supporting members 11 corresponds to the number of vertical ruled lines.
By attaching , vertical ruled lines can be drawn arbitrarily.

To draw horizontal lines on the paper, press the underline symbol (-) or minus symbol (-) on the print wheel 6.
It can also be drawn by overstriking with shorter space pitches than usual. Depending on how you select the space pitch, you can use either an underline or a minus sign as appropriate. However, such a method is not necessarily rational because it takes time to print the ruled lines and the printing wheel must be struck many times.

In the printer according to the present invention, a dedicated ruled line printing device, such as a ruled line printing device 19, is attached to the carriage 8 in addition to the printing wheel. For example, as shown in FIG. 3, the ruled line printing device 19 includes a holder 20 fixed to the carriage 8 and a plunger 22 movably mounted within coils 21 and 21 attached to the holder 20 and supported by the holder 20. have A writing instrument 23 such as a ballpoint pen is inserted into the plunger 22, and the writing instrument 23 is inserted into the plunger 22.
A pressing force is applied by a spring 24' provided therein. The plunger 22 is connected to the writing instrument 2 by a spring 24.
3 is receiving a force that separates it from paper 2. coil 21
When energized, the plunger 22 moves to the right in the figure, and the writing instrument 23 comes into contact with the paper, making it ready for printing. The coil 21 only needs to have enough force to overcome the spring 24, and the spring 24 is used to press the writing instrument.
Since the ruled line printing device 19 is moved laterally by the carriage 8, horizontal ruled lines can be easily written.

The carriage 8 is moved by a horizontal rule operation command at the horizontal ruled position of the paper, and when the carriage reaches the starting point of the horizontal ruled line, the driving device, for example, the coil 21 is energized by the printing command, and the writing instrument 23 is moved onto the paper 2. A horizontal rule of a desired length is written by contacting the paper.

When writing horizontal lines using the printing wheel 6, a control device having a circuit as shown in FIG. 5, for example, is used.

Normally, when creating horizontal ruled lines using the printing wheel, the current applied to the printing hammer 7 is reduced, and the printing force is Try to make it weaker.

When a horizontal line is not written, the horizontal line operation command A becomes a low signal L. At this time, when the hammer operation command B becomes a high signal H due to the printing command, no output is generated at the first AND gate 25, but at the second AND gate 26, the H signal of the hammer operation command and the horizontal direction reversed by the inverter 27 are output. An AND is formed with the H signal of the rule operation command, the second transistor 29 is operated, and a large current flows through the hammer magnet 30. The printing wheel 6 is therefore struck with great force. However, when the horizontal line operation command A becomes an H signal in order to write a horizontal line, the first AND gate 25 is activated by the H signal of the hammer operation command B.
AND is formed in the first transistor 2
8 works. The first transistor 28 has a resistor 3
Since 1 is connected, hammer magnet 30
Since the current flowing through the printing wheel 6 is small, the printing wheel 6 is struck with a weak force. Therefore, horizontal lines are printed thinner than characters. At this time, since the horizontal line operation command is inputted as an L signal to the second AND gate 26, an AND is not formed and no output is generated.

According to the present invention, even with conventional printers such as serial printers, by attaching a ruled line printing device separate from the printing wheel to the carriage, it is possible to easily print both characters and ruled lines neatly. It became. Furthermore, it has become possible to write ruled lines in parallel with the printing process.

The present invention has made it possible to change the ruled lines depending on the situation. In other words, it has become possible to print slips in any format.

[Brief explanation of the drawing]

FIG. 1 is a front view of the device according to the present invention, FIG. 2 is a side view, FIG. 3 is a sectional view showing an example of the ruled line printing device, FIG. 4 is a diagram showing an example of the format, and FIG.
The figure is a circuit diagram showing an example of a printing hammer control circuit when horizontal lines are drawn by a printing wheel. 2...Paper, 5...Printing device, 11...Supporting member, 12...Writing instrument, 17...Solenoid, 19
...Horizontal marking imprint, 20...Holder, 21...Coil, 23...Writing instrument.

Claims (1)

[Claims] 1. A platen for feeding printing paper, a printing wheel facing the platen and having type on its circumference, a carriage that moves parallel to the axis of the platen to any desired printing position, and a printing wheel carried by the carriage for printing. a rotary drive for rotating said print wheel to select characters, a striking device for striking one of the characters of said print wheel onto a print sheet, and mounted on a carriage at a spacing relative to said print wheel; A ruled line printing device is provided for printing ruled lines on printing paper, and the ruled line printing device is composed of a writing instrument such as a ballpoint pen, a holding means for movably holding the writing instrument, and a driving means for moving the writing instrument, A printer characterized in that the rotational drive device, the striking device, and the ruled line printing device move together with a carriage.