CN206623544U - A kind of impact printer sheet positioning detecting system - Google Patents
A kind of impact printer sheet positioning detecting system Download PDFInfo
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- CN206623544U CN206623544U CN201720214760.1U CN201720214760U CN206623544U CN 206623544 U CN206623544 U CN 206623544U CN 201720214760 U CN201720214760 U CN 201720214760U CN 206623544 U CN206623544 U CN 206623544U
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- China
- Prior art keywords
- photoelectric sensor
- reflective photoelectric
- signal conditioning
- conditioning circuit
- sheet positioning
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Abstract
The utility model discloses a kind of impact printer sheet positioning detecting system, including main control module, signal conditioning circuit, first reflective photoelectric sensor, second reflective photoelectric sensor and paper feed mechanism, the signal output part of first reflective photoelectric sensor and the second reflective photoelectric sensor connects the input of signal conditioning circuit respectively, the output end of signal conditioning circuit and the control terminal of paper feed mechanism connect main control module respectively, first reflective photoelectric sensor and the second reflective photoelectric sensor are respectively placed in the left and right sides of lateral paper guide below printhead, and first reflective photoelectric sensor center it is parallel with the moving direction of printer carriage with the line direction at the center of the second reflective photoelectric sensor.The utility model solves the problems, such as that printing the printing content easily occurred when single-sheet stationery and certificate misplaces, and expands sheet positioning scope.
Description
Technical field
The utility model belongs to printer technology field, more particularly to a kind of impact printer sheet positioning detection system
System.
Background technology
Currently, most of impact printers do not possess to paper right boundary detection and localization function, when the printing of user is situated between
When matter is single-sheet stationery or certificate, easily there is the situation that content dislocation is printed in horizontal direction.This is due to that user is put
Caused by the left margin of medium is not alignd with reference position when entering medium, and due to being manual paper feeding, it is difficult in operation
Avoid the occurrence of such situation.And the sheet positioning sensor assembled in high-end deposit book printers typically assembles maintenance complexity, and
And sheet positioning scope is small, it is impossible to which left and right ends portion is positioned.
Utility model content
In order to solve the technical problem that above-mentioned background technology proposes, the utility model aims to provide a kind of impact printer paper
Position detecting system is opened, solves the problems, such as to print the printing content dislocation easily occurred when single-sheet stationery and certificate, expands paper and determine
Position scope.
In order to realize above-mentioned technical purpose, the technical scheme is that：
A kind of impact printer sheet positioning detecting system, including main control module, signal conditioning circuit, the first reflecting light
Electric transducer, the second reflective photoelectric sensor and paper feed mechanism, the first reflective photoelectric sensor and the second reflection type photoelectricity
The signal output part of sensor connects the input of signal conditioning circuit, the output end and paper feed mechanism of signal conditioning circuit respectively
Control terminal connect main control module respectively, the first reflective photoelectric sensor and the second reflective photoelectric sensor, which are respectively placed in, to be beaten
Print the left and right sides of lateral paper guide below head, and the center of the first reflective photoelectric sensor and the second reflective photoelectric sensor
The line direction at center is parallel with the moving direction of printer carriage.
Preferred scheme based on above-mentioned technical proposal, lateral paper guide are provided with 2 necks, are respectively used to fix first reflective
Photoelectric sensor closes the second reflective photoelectric sensor.
Preferred scheme based on above-mentioned technical proposal, first reflective photoelectric sensor and the second reflecting light fax
When sensor is digital sensor, then the signal conditioning circuit only includes filter circuit.
Preferred scheme based on above-mentioned technical proposal, first reflective photoelectric sensor and the second reflecting light fax
When sensor is analog sensor, then the signal conditioning circuit includes the filter circuit and analog to digital conversion circuit being sequentially connected.
Preferred scheme based on above-mentioned technical proposal, the system also include alarm module, and the control terminal of the alarm module connects
Connect main control module.
The beneficial effect brought using above-mentioned technical proposal：
(1) in the utility model on lateral paper guide left and right ends two reflective photoelectric sensors simultaneously to paper or so side
Boundary is positioned, and draws two groups of location datas, then this two groups of data are integrated, and can obtain bigger orientation range；
(2) in the utility model because line direction at the center of two reflective photoelectric sensors and printer carriage
Moving direction is parallel, therefore the function of paper sheet askew detection can be realized during paper feed.
(3) the utility model is simple in construction, is easily assembled and repairs.
Brief description of the drawings
Fig. 1 is circuit diagram of the present utility model；
Fig. 2 is structural representation of the present utility model；
Fig. 3 is scheme of installation of the present utility model.
Label declaration：1st, the first reflective photoelectric sensor；2nd, the second reflective photoelectric sensor；3、4：Passed for installing
The neck of sensor.
Embodiment
Below with reference to accompanying drawing, technical scheme is described in detail.
A kind of impact printer sheet positioning detecting system, as shown in figure 1, including main control module, signal conditioning circuit,
One reflective photoelectric sensor, the second reflective photoelectric sensor and paper feed mechanism, the first reflective photoelectric sensor and second
The signal output part of reflective photoelectric sensor connects the input of signal conditioning circuit, the output end of signal conditioning circuit respectively
Main control module is connected respectively with the control terminal of paper feed mechanism.As shown in Fig. 2 the first reflective photoelectric sensor and second reflective
Photoelectric sensor is respectively placed in the left and right sides of lateral paper guide below printhead, and the center of the first reflective photoelectric sensor and the
The line direction at the center of two reflective photoelectric sensors is parallel with the moving direction of printer carriage.
As shown in figure 3, set 2 necks on lateral paper guide, it is respectively used to fix the first reflective photoelectric sensor and closes the
Two reflective photoelectric sensors.
If the first reflective photoelectric sensor and the second reflective photoelectric sensor are digital sensor, the signal
Modulate circuit only includes filter circuit.If the first reflective photoelectric sensor and the second reflective photoelectric sensor are analog sensed
During device, then the signal conditioning circuit includes the filter circuit and analog to digital conversion circuit being sequentially connected.
The system is also including the alarm module being connected with main control module, the paper sheet askew when system detectio is to paper feed,
Then control paper feed mechanism moves back paper, while controls alarm module to alarm, and prompts user's paper feed again.
A lateral paper guide can be typically installed below the printhead of impact printer, for by sheet spread, it can be with word
Car moves left and right together.Reflective photoelectric sensor feeds back the reflection coefficient of object being measured by the size of output voltage,
The border of paper is identified by using the difference of paper and marking roll reflectance factor.It is main after printer completes paper feed action
Control module meeting control word car is moved to rightmost from Far Left, and detects the magnitude of voltage of photoelectric sensor output in real time, by right
Magnitude of voltage and the variation relation of printhead shift position determine the boundary position of paper, so as to realize the detection and localization to paper
Function.
Because two reflective photoelectric sensor central point line directions are parallel with word car moving direction on lateral paper guide, entering
During paper, during paper upper end is by two sensors, it can detect that the step number of paper is poor to two sensors
To judge it is crooked whether paper is placed.If paper is put just, paper upper end border can pass through the first reflecting light simultaneously in theory
Electric transducer and the second reflective photoelectric sensor, will be successively reflective by first during paper feed if paper sheet askew
Photoelectric sensor and the second reflective photoelectric sensor.If step number difference is more than certain threshold value, it is crooked to judge that paper is placed.
Step number difference can react the crooked degree of paper, can set the threshold value of step number difference as needed.If it is determined that paper placement is askew
Tiltedly, master control control paper feed mechanism moves back paper, and prompts user's paper feed again by alarm module.
The technological thought of embodiment only to illustrate the invention, it is impossible to protection scope of the present invention is limited with this, it is every according to
Technological thought proposed by the present invention, any change done on the basis of technical scheme, each falls within the scope of the present invention.
Claims (5)
- A kind of 1. impact printer sheet positioning detecting system, it is characterised in that：Including main control module, signal conditioning circuit, One reflective photoelectric sensor, the second reflective photoelectric sensor and paper feed mechanism, the first reflective photoelectric sensor and second The signal output part of reflective photoelectric sensor connects the input of signal conditioning circuit, the output end of signal conditioning circuit respectively Main control module, the first reflective photoelectric sensor and the second reflective photoelectric sensor are connected respectively with the control terminal of paper feed mechanism It is respectively placed in the left and right sides of lateral paper guide below printhead, and the center of the first reflective photoelectric sensor and the second reflecting light The line direction at the center of electric transducer is parallel with the moving direction of printer carriage.
- 2. impact printer sheet positioning detecting system according to claim 1, it is characterised in that：Lateral paper guide is provided with 2 Neck, it is respectively used to fix the first reflective photoelectric sensor the second reflective photoelectric sensor of conjunction.
- 3. impact printer sheet positioning detecting system according to claim 1, it is characterised in that：First reflecting light When electric transducer and the second reflective photoelectric sensor are digital sensor, then the signal conditioning circuit only includes filtered electrical Road.
- 4. impact printer sheet positioning detecting system according to claim 1, it is characterised in that：First reflecting light When electric transducer and the second reflective photoelectric sensor are analog sensor, then the signal conditioning circuit includes what is be sequentially connected Filter circuit and analog to digital conversion circuit.
- 5. impact printer sheet positioning detecting system according to claim 1, it is characterised in that：The system also includes alarm Module, the control terminal connection main control module of the alarm module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720214760.1U CN206623544U (en) | 2017-03-07 | 2017-03-07 | A kind of impact printer sheet positioning detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720214760.1U CN206623544U (en) | 2017-03-07 | 2017-03-07 | A kind of impact printer sheet positioning detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206623544U true CN206623544U (en) | 2017-11-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720214760.1U Active CN206623544U (en) | 2017-03-07 | 2017-03-07 | A kind of impact printer sheet positioning detecting system |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110654905A (en) * | 2018-06-28 | 2020-01-07 | 湖南长城信息金融设备有限责任公司 | Dynamic paper state detection method and paper device thereof |
-
2017
- 2017-03-07 CN CN201720214760.1U patent/CN206623544U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110654905A (en) * | 2018-06-28 | 2020-01-07 | 湖南长城信息金融设备有限责任公司 | Dynamic paper state detection method and paper device thereof |
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