KR930010460B1 - Printing apparatus - Google Patents

Abstract

No content.

Description

Metering device

The drawings illustrate the practice of the invention,

1 is a block diagram.

2 is a side view showing some mechanism.

3 is a plan view of the label.

4 is a timing chart.

* Explanation of symbols for main parts of the drawings

1: label 2: thermal head

25-26: print buffer 33: heat generating element

35: timer

Technical Field of the Invention

The present invention relates to a weighing printing device which prints printing contents including weighing data on a label by a thermal head.

[Technical Background and Problems]

In general, the use of a thermal head as a printing means in a label printer or the like has advantages such as free printing pattern and clear bar code printing.

However, since the color density or print density of the label is constant throughout, when there is a part to be emphasized in the printing information, the part is surrounded by a line or displayed in bold letters.

In this way, to some extent it is possible to achieve the purpose of emphasizing specific information, but it can be solved carefully, and it is not possible to know the highlighted part at a glance.

In addition, it is easy to achieve the above-mentioned object by multicolor printing, but this requires two or more thermal heads, and the structure of the printing mechanism becomes very complicated.

[Purpose of invention]

An object of the present invention is to obtain a metering device that can change and display the printing color or density of a part when there is a part to be emphasized in the printing information.

Overview of the Invention

By connecting a plurality of print buffers to the thermal head of the present invention and selecting these invar buffers at the time of a single print, the energization time to each heat generating element is changed, thereby changing the heat generation concentration of the label, thereby providing It is configured to print by changing color or density from other printing information.

[Examples of the Invention]

First, a rectangular label 1 is attached to the long sheet 2 at an equal angle, and the sheet 2 is wound in a roll to be supported by the label supply unit 3.

The ground 2 is bent in the label peeling plate 6 part via the furaton 5 driven by the pulse motor 4 and wound around the winding shaft 9 through which the winding motor 8 is driven via the roller 7.

In addition, the label 1 peeled off by the label peeling plate 6 having a thermal head 10 formed on the furathon 5 detects whether the front edge passes through the label detector 11 that acts photoelectrically and detects the presence or absence thereof.

In this way, an example of the contents printed on the label 1 is displayed. Label 1 is preprinted with the unique date 12 of the processing date, effective date, item number per 100 g (yen), content amount (s), value (yen), store name, and division line.

The thermal head 10 prints the product name 13, date 14, bar code 15, data 16, and measurement information 17. However, in this embodiment, the specific information 17, which is a "good item", is a part to be emphasized, and the other printing part and the like. Is printed with different colors or concentrations by the means described later.

Next, the electric circuit will be described.

First, a printing roller 18 which is operated by a printer command or a label detection signal is formed, and two output gates 20 and 21 of the output terminals of the scale 19 are connected to the input side, and the printing factor is connected to the other input side of the end gates 20 and 21 of the scale. The control signal at the controller 18 is supplied directly or via inverter 22. The output sides of these AND gates 20 and 21 are connected to the first factor buffer 25 and the second factor buffer 26 via the collector generator conversion circuits 23 and 24, respectively.

The printing controllers 18 are connected to these printing buffers 25 and 26 via X-, Y-, and clock lines.

The first factor buffer 25 is connected to the shift register 28 of the thermal head 10 through the or gate 27. The second print buffer 26 is connected to the other end of the AND gate 29 having one input connected to the C.Cont (color controller) line of the print controller 18. The or gate 27 of the AND gate 29 is connected.

Next, the internal structure of the thermal head 10 will be described. First, data of the print buffers 25 and 26 are inputted one bit at a time into the shift register 28 by a clock CLK, and the shift register 28 is input by the strobe signal STE. Is transferred to the latch circuit 30 in parallel with the shift register 28.

The latch circuit 30 is connected to a switching transistor 34 for controlling the energization of each of the heat generating elements 33 commonly connected to the power source 32 via a plurality of AND gates 31. These AND gates 31 are opened by the enable signal ENB, at which time the conduction state of the switching transistor 34 is controlled in accordance with the data from the latch circuit 30.

The timer controller 18 is connected to a timer 35 serving as an energization time control circuit. This timer 35 is started from the T ₁ signal having the period P ₁ and generates an output signal T ₂ which regulates the time to become P ₂ .

As described later, this time P ₂ is a time at which the contents of the first factor buffer 25 and the second factor buffer 26 are simultaneously printed. A variable resistor 36 is connected to the timer 35 to adjust the time P ₂ .

A motor driver 34 connected to the pulse motor 4 is connected to the printing controller 18, whereby the sending of the label 1 is controlled.

In addition, the printing roller 18 supplies the data transfer control signal DTCS, which is at a high level when the Y address is from 0 to YYYY, to the type power stage of the AND gate 37 which receives the clock signal at one input terminal, and the clock signal CLK. Controls the supply to the shift register 28.

In this configuration, the strobe signal STB and the enable signal ENB are generated at timings matching the granularity of T _{1 and} the granularity of T ₂ .

Now period P ₁ of T ₁ is to be in the first line time factor of the label 1, and T ₁ fraud pulse motor 4 to be generated each time the line is driven and sends the first level.

Here, the argument of one line does not mean a single line of characters but a single line of dots.

And the other and has two hours by 35 P ₂ P ₁ is regulated period is divided into 2 times the time that the P ₂ (P ₁ -P _2).

Here, after the output of T _{1, the} output of the timer 35 becomes a high level after the passage of time P ₂ .

메모리라 칭하고 제2의 인자 버퍼 26을

메모라 칭하여 이하 설명한다.Now take the first argument buffer 25

Called memory the second argument buffer 26

This will be described below as a memo.

메모리에 기억되어 있는 내용을 X 어드레스가 행마다의 어드레스를 표시하고 Y 어드레스가 각 행의 어드레스를 표시하는 것으로 한다.And each

It is assumed that the contents stored in the memory represent the address of each row by the X address and the address of each row by the Y address.

In order to do that, 0,1,2 ... YY arguments are present.

There will be described based on the timing chart of FIG.

메모리 인자의 동작 사이클에서 시작하고 있다.The first thing in the city is the Nth data

Beginning in the operating cycle of a memory argument.

메모리의 출력은 서멀 헤드 10에 주어지지 않도록 되어 있다.In this operation cycle, the STB signal and the ENB signal based on T ₁ start to energize the heating element 33 based on the data already input to the shift register 28, and since T ₂ is also low level, C-CONT The signal is also low level

The output of the memory is not given to the thermal head 10.

메모리이 내용만이고 실제로 인자되어 있는 내용은 직전에 입력되어 있던 데이터에 의거하는 것이다.Therefore, at this time, the data pressure of the thermal head 10

The memory is the contents only, and the contents actually printed are based on the data entered immediately before.

메모리의 내용은 라치 회로 30에 입력되고 그 내용에 맞추어서 발열 소자 33에 선택적으로 전류가 흐른다.When the time P ₂ elapses, the shift register 28

The contents of the memory are input to the latch circuit 30, and a current flows selectively through the heat generating element 33 in accordance with the contents.

메모리의 내용이 인자된다. 또 T₂는 고레벨임으로 C-CONT 신호도 고레벨이고

메모리와

메모리와의 양측 데이터는 서멀 헤드 10의 시프트 레지스터 28에 입력된다.Therefore, at this time,

The contents of the memory are printed. T ₂ is high level, so C-CONT signal is high level.

With memory

Both data with the memory are input to the shift register 28 of the thermal head 10.

메모리의 합성된 데이터와

메모리만의 데이터 등이 교호로 이 라벨 1 위에 인자된다.,In this way, in the time zone separated by time (P ₁ -P ₂ ) and time P ₂ , sent in a cycle of P ₁ of label 1

Synthesized data in memory

Memory-only data is alternately printed above this label 1.

메모리의 내용이 「매득품」이란 특정 정보 17이라 한다면, 이 특정 정보 17을 인자하기 위한 발열 소자 33의 통전 시간이 시간 T₁이 되며

메모리에서의 데이터를 인자하기 위한 발열 소자 33의 통전 시간 T₂보다 길다.therefore

If the content of the memory referred to as "maedeuk product" refers to specific information 17, the energization time of the heating device 33 and the time T ₁ for a certain parameter information 17

It is longer than the energization time T ₂ of the heat generating element 33 for printing data in the memory.

Therefore, specific information is different from other information printed by the heat generating element through which time T ₂ is energized, and is clearly distinguished.

In the implementation, it is possible to change the T ₂ time by adjusting the variable resistor 36 to the enemy.

This is to adjust the paper of the label 1 by the property or the like.

메모리와

메모리와의 내용을 1행 인자할 때에 교호로 인자라도록 해도 무방하다. 이 경우는 T₂시간의 설정이 특히 중요하다. 즉, T₂=T₁/2이면 의미가 없으므로 T₂＞T₁또는 T₂＜T₁으로 설정한다.In the case of using a monochromatic thermal paper, the portion to be emphasized is printed at a concentration different from that of the ordinary printing portion. In addition, in practice

With memory

When printing the contents with the memory in a single line, the contents may be alternately printed. In this case, the setting of the T ₂ time is particularly important. In other words, if T ₂ = T _1/2 , there is no meaning, so T ₂ > T ₁ or T ₂ <T ₁ is set.

[Effects of the Invention]

According to the present invention, by forming several print buffers for inputting print data into the thermal head as described above, by appropriately selecting the pressures of the print buffers, the energization time of the heating element of a specific portion of the print information can be changed easily. By partially changing the color development of the label, the part to be emphasized can be clearly distinguished and printed.

Claims (3)

At least a print buffer which forms a thermal head having a plurality of heat generating elements that are in contact with the label moving in one direction and is printed over the full width of the label, and which gives print data for controlling the energization of the thermal head to the heat generating elements; Forming printing device, characterized in that forming two. A factor for controlling the energization of the thermal head to the heat generating element according to claim 1, wherein a heat erasing head having a plurality of heat generating elements printed in contact with the label moving in one direction is printed over the entire width of the label. And an energization time control circuit for forming a difference in energization time to said heat generating element when at least two print buffers for providing data are formed. The weighing printing apparatus according to claim 2, wherein the energization time set by the energization time control circuit is made variable.

Images