CN209063721U - A kind of thermal printing apparatus - Google Patents
A kind of thermal printing apparatus Download PDFInfo
- Publication number
- CN209063721U CN209063721U CN201821630247.1U CN201821630247U CN209063721U CN 209063721 U CN209063721 U CN 209063721U CN 201821630247 U CN201821630247 U CN 201821630247U CN 209063721 U CN209063721 U CN 209063721U
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- China
- Prior art keywords
- printing apparatus
- integrator
- thermal printing
- coupler
- photo
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Abstract
The utility model relates to printer technology fields, disclose a kind of thermal printing apparatus, the thermal printing apparatus is mainly made of photoelectric coupled circuit, integrated circuit, photoelectric coupled circuit includes photo-coupler (U100), integrated circuit includes integrator (IC1), the signal output end of photo-coupler (U100) is connect with the signal input part of integrator (IC1), black mark is detected signal input ic by photoelectric coupled circuit, label detection is carried out by integrated circuit, passes through the output signal end heat sensitive printer output print signal of integrator (IC1).The thermal printing apparatus can position and can effectively improve the thermal printing apparatus that label prints accuracy by detecting black mark printing.
Description
Technical field
The utility model relates to printer technology fields, more specifically to a kind of thermal printing apparatus.
Background technique
Printer is applied to relatively broad office equipment in daily life and office, general to have printing, duplicating etc.
Function, easy to operate and printing effect are good.The volume of general printer is larger, and price is also relatively high, printing or the paper duplicated
Opening is usually A4 paper size, and when needing to print the smaller strip of some pages or bar code, common printer cannot be beaten
Print.Therefore common printer can not meet the printing demand of other specifications.
Therefore, in the prior art, a kind of thermal printing apparatus is provided, fast, low noise, printing with print speed
Clearly, the advantages that easy to use, is suitable for print paper lesser some inventory, strip or bar codes etc..But this heat
Quick printing equipment when paper wanders off, easily causes paper to deviate, so that the print head of printer when using unilateral black mark printing paper
It cannot accurately identify, printing is caused to misplace.
Utility model content
The technical problem to be solved by the present invention is to provide one kind can be by detecting black mark printing positioning and can have
Improve the thermal printing apparatus of label printing accuracy in effect ground.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of thermal printing apparatus is constructed,
It is mainly made of photoelectric coupled circuit, integrated circuit, the photoelectric coupled circuit includes photo-coupler, and the integrated circuit includes
Integrator,
The signal output end of the photo-coupler is connect with the signal input part of the integrator, and the photoelectric coupled circuit will be black
Mark detection signal inputs the integrated circuit, carries out label detection by the integrated circuit, is believed by the output of the integrator
Number end heat sensitive printer output print signal.
Preferably, the integrated circuit further includes capacitor, and the high level of one end of the capacitor and the integrator inputs
End and circuit power connection, the other end ground connection or hanging of the capacitor.
Preferably, the capacity of the capacitor is 100nF.
Preferably, the photoelectric coupled circuit further includes first resistor and second resistance, one end of the first resistor and described
One end of second resistance and the common connection of the anode of power supply, the other end of the first resistor and the voltage of the photo-coupler are defeated
Enter end connection,
The signal of the signal output end and the integrator of the other end of the second resistance and the photo-coupler inputs
The common connection in end.
Preferably, the resistance value of the first resistor is 180R, and the resistance value of the second resistance is 10K Ω.
Preferably, the peak emission wavelength of the photo-coupler is 940nm.
In thermal printing apparatus described in the utility model, be printed on by the detection of photo-coupler in photoelectric coupled circuit it is black
Label paper is marked, the positioning of abstract factory printing, the positioning signal that will test is transferred to integrated circuit, handles through integrator, defeated
Driving print label signal, which heats to print head and contacts thermal printing paper, out prints the high label of accuracy.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the partial circuit diagram of thermal printing apparatus provided by the utility model；
Fig. 2 is the technical parameter of photo-coupler.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
Fig. 1 is the partial circuit diagram of thermal printing apparatus provided by the utility model.As shown in Figure 1, practical new at this
In the first embodiment of the thermal printing apparatus of type, a kind of thermal printing apparatus is constructed, mainly by photoelectric coupled circuit, integrated circuit group
At photoelectric coupled circuit includes photo-coupler U100, and integrated circuit includes integrator IC1.Photo-coupler U100 has 4 pins, 1 foot
For voltage input end, 2 feet are common end, and 3 feet are signal output end, and 4 feet are ground terminal.As shown in Figure 1, the institute in photoelectric coupled circuit
3 feet in Print-PSO and photo-coupler U100 shown refer to the same port, i.e. signal output end.Specifically, in light
In coupling circuit, Print-PSO is drawn between second resistance R2 and 3 feet of photo-coupler U100.Photo-coupler U100 is in circuit
In mainly have the function of the detection of black mark and signal transmission.
Further, if apply a forward voltage between 1 foot and 2 feet of photo-coupler U100, photosensitive two pole
Pipe is in positively biased, and photo-coupler U100 conducting corresponds to the black mark for detecting the label printing paper being placed in printing equipment at this time
Line realizes and positions to the Loading position of printing paper that the signal that then will test is input to integrated electricity by signal output end
Road.
As shown in Figure 1, PAPER-PRN-PWR is the power input of printer.Integrator IC1 has 5 ports, the end NC
Vacantly, A is signal input part, and GND is ground terminal, and Y is driving signal output end, and VCC is high level signal input terminal.Integrated
The end A of Print-PSO shown in circuit and integrator IC1 refers to the same port, i.e. signal input part；Print-
The end PSO-OUT and the end Y of integrator IC1 refer to the same port, i.e. driving signal output end.Specifically, integrator IC1
It is mainly used for receiving the detection of black mark signal and label and control output printing driving signal.
Keep integrated circuit in the conductive state, driving voltage need to be accessed in the high level signal input terminal of integrator IC1,
3 foot normal grounds, the signal input part of integrator IC1 can receive the print position positioning letter exported by photo-coupler U100
Number, further, integrator IC1 detects the label of label paper, then defeated to printer by integrator IC1 output signal end
Print signal out.
In the present embodiment, the black mark markings of the photo-coupler U100 detection label paper of photoelectric coupled circuit, determine label
Initial position of the paper in printing, the signal input ic that then will test is handled through integrator IC1, further right
Label paper is detected, and determines the specific location of type information, effectively improves the accuracy of label printing.
In the present embodiment, it in order to improve the stability of integrated circuit, can be inputted in the high level signal of integrator IC1
End increases a capacitor C1.The effect of capacitor C1 is rf filtering.The capacity of capacitor C1 is chosen as 100nF's.Capacitor C1's
One end is connect with the high level input terminal and circuit power of integrator IC1, and the other end of capacitor C1 ground connection or hanging.
In the present embodiment, increase a capacitor on the integrated, low frequency signal can be eliminated to integrator IC1's
Interference is conducive to the job stability for improving integrator IC1.
Further, in order to improve the detection performance of photoelectric coupled circuit, can increase in the voltage input end of photo-coupler U100
One pull-up resistor R1 increases a current-limiting resistance R2 in signal output end.Pull-up resistor R1 can pass through uncertain signal
One resistance clamper plays metering function in high level, resistance R1 simultaneously.The resistance value of resistance R1 can use the resistance of 180R current-limiting resistance R2
It is worth desirable 10K Ω.Specifically, the anode of one end of first resistor R1 and power supply connects, the electricity of the other end and photo-coupler U100
Input terminal connection is pressed, provides a positive bias-voltage for photo-coupler U100.One end of second resistance R2 and the anode of power supply connect,
The other end is connect jointly with the signal input part of the signal output end of photo-coupler U100 and integrator IC1, defeated to integrator IC1
The starting positioning signal printed out.
As shown in Fig. 2, the forward current of the input terminal of photo-coupler U100 is 10mA, forward conduction voltage is 1.3V.
Backward voltage is when within 5V, reverse current 10uA.When the forward current of photodiode rises to 20mA, peak value
Emission wavelength is 940nm.When the breakdown reverse voltage of photo-coupler U100 output end is 10V, dark current 0.2uA.
The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to
The specific embodiment stated, the above mentioned embodiment is only schematical, rather than restrictive, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection of the utility model.
Claims (6)
1. a kind of thermal printing apparatus, which is characterized in that
It is mainly made of photoelectric coupled circuit, integrated circuit, the photoelectric coupled circuit includes photo-coupler (U100), the integrated circuit packet
Integrator (IC1) is included,
The signal output end of the photo-coupler (U100) is connect with the signal input part of the integrator (IC1), the optocoupler
Black mark detection signal is inputted the integrated circuit by circuit, is carried out label detection by the integrated circuit, is passed through the integrator
(IC1) output signal end heat sensitive printer output print signal.
2. thermal printing apparatus according to claim 1, which is characterized in that the integrated circuit further includes capacitor (C1),
One end of the capacitor (C1) is connect with the high level input terminal of the integrator (IC1) and circuit power, the capacitor (C1)
Other end ground connection or hanging.
3. thermal printing apparatus according to claim 2, which is characterized in that the capacity of the capacitor (C1) is 100nF.
4. thermal printing apparatus according to any one of claims 1 to 3, which is characterized in that the photoelectric coupled circuit further includes
First resistor (R1) and second resistance (R2), one end of the first resistor (R1) and one end of the second resistance (R2) and electricity
The common connection of the anode in source, the other end of the first resistor (R1) and the voltage input end of the photo-coupler (U100) connect
It connects,
The other end of the second resistance (R2) and the signal output end of the photo-coupler (U100) and the integrator (IC1)
Signal input part connect jointly.
5. thermal printing apparatus according to claim 4, which is characterized in that the resistance value of the first resistor (R1) is
180R, the resistance value of the second resistance (R2) are 10K Ω.
6. thermal printing apparatus according to any one of claims 1 to 3, which is characterized in that the photo-coupler (U100)
Peak emission wavelength be 940nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821630247.1U CN209063721U (en) | 2018-10-08 | 2018-10-08 | A kind of thermal printing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821630247.1U CN209063721U (en) | 2018-10-08 | 2018-10-08 | A kind of thermal printing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209063721U true CN209063721U (en) | 2019-07-05 |
Family
ID=67094202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821630247.1U Active CN209063721U (en) | 2018-10-08 | 2018-10-08 | A kind of thermal printing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209063721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113326903A (en) * | 2021-05-27 | 2021-08-31 | 上海摩勤智能技术有限公司 | Label detection device and POS equipment |
-
2018
- 2018-10-08 CN CN201821630247.1U patent/CN209063721U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113326903A (en) * | 2021-05-27 | 2021-08-31 | 上海摩勤智能技术有限公司 | Label detection device and POS equipment |
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