CN115107382A - Photoelectric sensing device of printer - Google Patents
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- CN115107382A CN115107382A CN202210876907.9A CN202210876907A CN115107382A CN 115107382 A CN115107382 A CN 115107382A CN 202210876907 A CN202210876907 A CN 202210876907A CN 115107382 A CN115107382 A CN 115107382A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0095—Detecting means for copy material, e.g. for detecting or sensing presence of copy material or its leading or trailing end
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/009—Detecting type of paper, e.g. by automatic reading of a code that is printed on a paper package or on a paper roll or by sensing the grade of translucency of the paper
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Abstract
The present invention provides a photoelectric sensing device of a printer, comprising: the photoelectric sensor module is used for receiving the driving current signal and outputting a sensing signal according to a detection result of running paper of the printer; the main control unit generates a first control signal based on a sensing signal of the photoelectric sensor module and a set reference voltage value; the driving circuit module is coupled with the main control unit, generates a corresponding driving current signal according to a first control signal and transmits the driving current signal to the photoelectric sensor module; the photoelectric sensor module monitors the printing process of running paper of the printer in a reflection type or transmission type photoelectric detection mode; the set reference voltage value is adjusted correspondingly according to the type of running paper of the printer, the photoelectric detection mode of the running paper and the parameter calibration grade of the photoelectric sensor module. The invention can realize the effective monitoring of the paper printing process in the manufacturing and application processes of the printer.
Description
Technical Field
The present invention relates to the field of electronic devices, and in particular, to a photoelectric sensing device for a printer.
Background
Bill printing or label printing are relatively common in scenes such as office, cash register and the like, and the scheme of detecting paper, black labels and detecting label gaps commonly used on the market cannot well meet the detection requirements of different scenes for the required printing function of thermosensitive bill printing or label printing at present.
In addition, for the photoelectric sensor, different models and even different calibration parameter (Rank) ranges of the same model, the coupling output of the photoelectric sensor has great difference, a hardware circuit with fixed sensitivity is likely to meet the requirements during early debugging and shipment, and the problems of not-adaptive detection function and the like are caused by replacing materials in subsequent use.
Disclosure of Invention
The invention aims to provide a photoelectric sensing device of a printer, which can effectively monitor the paper printing process in the manufacturing and application processes of the printer.
In order to solve the above technical problem, the present invention provides a photoelectric sensing apparatus for a printer, including: the photoelectric sensor module is used for receiving a driving current signal and outputting a sensing signal according to a detection result of running paper of the printer; the main control unit generates a first control signal based on a sensing signal of the photoelectric sensor module and a set reference voltage value; the driving circuit module is coupled with the main control unit, generates a corresponding driving current signal according to the first control signal and transmits the driving current signal to the photoelectric sensor module; the photoelectric sensor module monitors the printing process of running paper of the printer in a reflection type or transmission type photoelectric detection mode; the set reference voltage value is adjusted correspondingly according to the type of running paper of the printer, the photoelectric detection mode of the running paper and the parameter calibration grade of the photoelectric sensor module.
In an embodiment of the present invention, the driving circuit module includes a filter rectification circuit and a voltage-controlled current source circuit coupled thereto; the filter rectification circuit receives the first control signal, generates a corresponding direct-current voltage signal and transmits the direct-current voltage signal to the voltage-controlled current source circuit; the voltage-controlled current source circuit generates a corresponding driving current signal based on the direct current voltage signal.
In an embodiment of the present invention, the photosensor module includes a pair of infrared emission lamps and infrared receiving sensors; the infrared emission lamp receives the driving current signal and emits a corresponding infrared signal; the infrared receiving sensor receives infrared signals reflected or transmitted by the running paper, and generates corresponding sensing signals based on the intensity value of the received infrared signals.
In an embodiment of the present invention, the parameter calibration level of the photosensor module is calibrated according to the test result of the detection sensitivity of the photosensor module.
In an embodiment of the invention, the first control signal includes a pulse width modulation signal, and the main control unit adjusting the first control signal includes adjusting a duty ratio of the pulse width modulation signal.
In one embodiment of the invention, the running paper of the printer comprises continuous bill paper or label paper with slits or paper with different thicknesses or paper with different colors or paper with color blocks with different colors.
In an embodiment of the present invention, the set reference voltage value is set based on a target detection state for a running sheet of the printer during printing.
In one embodiment of the invention, the running paper of the printer comprises a continuous ticket paper or a label paper with a gap; when the running paper of the printer is continuous bill paper, the target detection state of the running paper is whether the bill paper is installed in the printer or not; when the running paper of the printer is label paper with gaps, the target detection state of the running paper is whether the label paper with the gaps is installed in the printer or not and whether the running paper is located in a label paper area or not.
In an embodiment of the invention, the photo sensor module includes a phototransistor circuit, and the generating the first control signal based on the sensing signal of the photo sensor module and the set reference voltage value includes: generating a first control signal based on a sensing signal of the photoelectric sensor module and a set reference voltage value, and enabling the photoelectric triode circuit to work in an amplification area; the output voltage of the phototriode circuit is between a first set threshold and a second set threshold, and the first set threshold and the second set threshold are set based on the amplification region operating parameters of the phototriode circuit.
In an embodiment of the present invention, the set reference voltage value is set based on a target detection state of running paper of the printer during printing; the running paper of the printer comprises continuous bill paper or label paper with gaps; when the running paper of the printer is continuous bill paper, the photoelectric triode circuit works in the amplifying area when detecting whether the bill paper is arranged in the printer or not; when the running paper of the printer is label paper with gaps, the photoelectric triode circuit works in the amplifying area when detecting whether the running paper is located in the label paper area.
Compared with the prior art, the invention has the following advantages: the technical scheme of this application, through the design and the application of circuit structure to and the cooperation of software and hardware, make can be as required dynamic adjustment sensor module's detectivity in the application, thereby can gather sensor module's output level and real-time dynamic adjustment detectivity and detection interval through same set of hardware circuit through software, satisfy the detection demand of all kinds of paper in the printer product is used.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the principle of the application. In the drawings:
fig. 1 is a schematic composition diagram of an optoelectronic sensing device of a printer according to an embodiment of the present application.
Fig. 2 is a schematic composition diagram of a photoelectric sensing device of a printer according to an embodiment of the present application.
Fig. 3 is a schematic diagram of a photosensor module according to an embodiment of the present application.
Fig. 4 is a schematic view of a succession of ticket sheets according to an embodiment of the present application.
Fig. 5 is a schematic view of a label sheet having slits according to an embodiment of the present application.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only examples or embodiments of the application, from which the application can also be applied to other similar scenarios without inventive effort for a person skilled in the art. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.
As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, so that the scope of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.
It will be understood that when an element is referred to as being "on," "connected to," "coupled to" or "contacting" another element, it can be directly on, connected or coupled to, or contacting the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly on," "directly connected to," "directly coupled to" or "directly contacting" another element, there are no intervening elements present. Similarly, when a first component is said to be "in electrical contact with" or "electrically coupled to" a second component, there is an electrical path between the first component and the second component that allows current to flow. The electrical path may include capacitors, coupled inductors, and/or other components that allow current to flow even without direct contact between the conductive components.
Embodiments of the present application describe an optoelectronic sensing device for a printer.
Fig. 1 is a schematic composition diagram of an optoelectronic sensing device of a printer according to an embodiment of the present application.
As shown in fig. 1, the photo-sensor device 100 of the printer includes a main control unit 101, a photo-sensor module 108, and a driving circuit module 105.
In some embodiments, the photosensor module 108 is configured to receive the driving current signal 114 and output a sensing signal 116 according to a detection result of a running paper of the printer.
The main control unit 101 sets the reference voltage value V based on the sensing signal 116 of the photoelectric sensor module 108 REF A first control signal 112 is generated.
The driving circuit module 105 is coupled to the main control unit 101, and generates a corresponding driving current signal 114 according to the first control signal 112, and transmits the driving current signal to the photosensor module 108.
In some embodiments, the photosensor module 108 monitors the printing process of the running paper of the printer by a reflective or transmissive photodetection mode.
The set reference voltage value is adjusted correspondingly according to the type of running paper of the printer, the photoelectric detection mode of the running paper and the parameter calibration grade of the photoelectric sensor module.
In some embodiments, the type of running paper of the printer includes, for example, continuous ticket paper or label paper with slits. The type of running paper may also include, for example, different colored paper or different thicknesses of paper.
The photoelectric detection mode for the running paper comprises a reflection type photoelectric detection mode or a transmission type photoelectric detection mode. The reflective photoelectric detection mode is that the photoelectric sensor module emits infrared light (or other types of optical signals) and receives the optical signals reflected by the running paper, and the corresponding running paper detection result is obtained by measuring the intensity of the reflected optical signals. The transmission type photoelectric detection mode is that the photoelectric sensor module emits infrared light (or other types of optical signals), receives optical signals transmitted through the running paper (namely, optical signals transmitted through the running paper), and obtains a corresponding running paper detection result by measuring the intensity of the transmitted optical signals.
The parameter calibration grade (Rank) of the photoelectric sensor module is calibrated according to the test result of the detection sensitivity of the photoelectric sensor module, the photoelectric sensor modules with different detection sensitivities can be calibrated into different parameter grades, and the specific precision and the range of parameter calibration can be set according to requirements. Due to manufacturing process errors and differences in device consistency, differences in detection sensitivity may exist among different batches of photosensor modules.
The set reference voltage value is adjusted correspondingly according to the type of the running paper of the printer, the photoelectric detection mode of the running paper and the parameter calibration grade of the photoelectric sensor module, namely the main control unit can adjust correspondingly according to different types of running paper, different photoelectric detection modes of the running paper and different parameter calibration grades of the photoelectric sensor module, so that the main control unit generates different first control signals based on the sensing signals of the photoelectric sensor module and the set reference voltage value.
In some embodiments, the first control signal comprises a pulse width
Modulating (PWM) a signal, the adjusting of the first control signal by the main control unit including adjusting a duty cycle of the Pulse Width Modulation signal.
Fig. 2 is a schematic composition diagram of an optoelectronic sensing device of a printer according to an embodiment of the present application.
Referring to fig. 2, the driving circuit module 105 includes a filter rectification circuit 201 and a voltage-controlled current source circuit 204 coupled thereto.
In some embodiments, the filter rectification circuit 201 receives the first control signal 112, generates a corresponding dc voltage signal 212 and transmits the dc voltage signal to the voltage-controlled current source circuit 204. The voltage controlled current source circuit 204 generates a corresponding drive current signal 114 based on the dc voltage signal 212.
The photosensor module 108 includes, for example, a photoelectric pair of an infrared-emitting lamp 206 and an infrared-receiving sensor 208.
The IR emitting lamp 206 receives the drive current signal 114 and emits a corresponding IR signal 214a (also referred to as a first IR signal). The ir receiving sensor 208 receives an ir signal 214b (also referred to as a second ir signal) reflected or transmitted by the running paper P, and generates a corresponding sensing signal 116 based on an intensity value of the received second ir signal 214b, and transmits the sensing signal to the main control unit 101.
As described above, the running paper P of the printer includes, for example, a continuous bill paper or a label paper having a slit.
Fig. 4 is a schematic view of a succession of ticket sheets according to an embodiment of the present application. Referring to fig. 4 (a) and (b), a continuous form paper 400 (also simply referred to as form paper) can be successively printed as necessary to form forms 401, 402, …. 411 and 412 illustrate demarcations where notes formed are printed in succession.
Fig. 5 is a schematic view of a label sheet having slits according to an embodiment of the present application. The label sheet having the slits may also be referred to as a label sheet having slits for continuous printing (or referred to as successive printing), which is printed on one label sheet at a time. Referring to fig. 5, a label sheet 500 having slits includes a base sheet 501 and label sheets 502, 503, … adhered to the base sheet. A tabbed area such as shown at a1 and a slit area such as shown at a 2. The label paper area and the slit area have heights of, for example, H1 and H2, respectively. When printing is continued, the printing is sequentially carried out on the adjacent label paper, and the base paper drives the label paper to roll and print along with the rotation of the scroll.
The different colored sheets include, for example, white, red, gray, or other colored sheets, and the different colored blocks include, for example, bill sheets of invoice type including black colored blocks (also referred to as black marks).
In some embodiments, the set reference voltage value is set based on a target detection state for a running sheet of the printer during printing.
For example, when the running paper of the printer is a continuous form paper, the target detection state of the running paper is whether or not a form paper is set in the printer. When the running paper of the printer is label paper with gaps, the target detection state of the running paper is whether the label paper with the gaps is installed in the printer or not and whether the running paper is located in a label paper area or not.
In some embodiments, whether the bill paper or the label paper with the gap is installed in the printer may be further related to the opening and closing state of the printer through setting of a specific engaging structure or setting of accuracy of the engaging structure, so that the opening and closing state of the printer is also reflected by detecting whether the bill paper or the label paper with the gap is installed in the printer. The opening and closing state of the printer is, for example, the opening or closing of the printing area, and a state of incomplete closing of the cover can be marked between the opening and the closing of the printing area, which can be mistakenly considered as the closed cover (actually still in the opening state) in some scenes, thereby easily causing an operation error of the printer. Through the setting of the reference voltage value and the receiving and analyzing of the sensing signal of the photoelectric sensor module, the first control signal is accurately adjusted, so that the accurate monitoring of the opening and closing state of the printer is facilitated, and the printer can smoothly run.
For example, the duty ratio of the pulse width modulation signal corresponding to the first control signal is accurately adjusted, for example, the duty ratio can be accurately adjusted to 1% of the adjustment amount, so that the driving current signal is accurately adjusted, the sensing accuracy of the photoelectric sensor module is fine, and the paper installation state is monitored.
The driving current signal is accurately adjusted by adjusting the first control signal, for example, the duty ratio of the pulse width modulation signal corresponding to the first control signal, so that the sensing accuracy of the photosensor module is also fine, the running paper of different types of printers, for example, continuous bill paper, label paper with slits, paper with different colors, or paper with color blocks of different colors, can be monitored, and the set reference voltage value is set based on the target detection state of the running paper of different types of printers.
In some embodiments, the photosensor module includes a phototransistor circuit. Fig. 3 is a schematic diagram of a photosensor module according to an embodiment of the present application.
Referring to fig. 3, the photosensor module 300 includes a phototransistor circuit 312. The photosensor module 300 further includes an infrared emission tube 311 (or referred to as an infrared emission lamp). The phototransistor circuit 312 may correspond to the infrared receiving sensor described above. The infrared emitting tube 311 and the phototransistor circuit 312 constitute, for example, a pair of photoelectric tubes 301. The photosensor module 300 further includes, for example, a resistor R L (e.g. pull-up resistor R) L ) Capacitor C L (e.g. filter resistor C) L ) And a resistance R F (e.g. current limiting resistor R) F ) Vdd is the input voltage and Vout is the output voltage.
The infrared transmitting tube 311 transmits an infrared signal, and the phototransistor circuit 312 receives the infrared signal reflected or transmitted by the running paper P. Vout is, for example, the output sense signal.
In some embodiments, generating the first control signal based on the sensing signal of the photosensor module and the set reference voltage value includes: and generating a first control signal based on the sensing signal of the photoelectric sensor module and the set reference voltage value, and enabling the photoelectric triode circuit to work in the amplification area. The amplification region may also be referred to as a linear region, and the phototransistor circuit performs linear amplification on an input signal, i.e., an input signal corresponding to the infrared signal received by the phototransistor circuit 312.
The output voltage of the phototriode circuit is between a first set threshold and a second set threshold, and the first set threshold and the second set threshold are set based on the amplification region operating parameters of the phototriode circuit.
In some embodiments, the first set threshold is, for example, a saturation voltage Vsat of a transistor in the phototransistor circuit, and the second set threshold is, for example, Vsat + Vs, where the value of Vs can be set according to actual situations, for example, 0.1V, 0.15V, or 0.2V.
In some embodiments, as previously described, the set reference voltage value is set based on a target detection state for running paper of the printer during printing. The running paper of the printer comprises continuous bill paper or label paper with gaps.
When the running paper of the printer is continuous bill paper, the photoelectric triode circuit works in the amplifying area when detecting whether the bill paper is arranged in the printer or not. When the running paper of the printer is label paper with gaps, the photoelectric triode circuit works in the amplifying area when detecting whether the running paper is located in the label paper area.
In one embodiment, for example, when a bill is printed, the Main Control Unit (MCU) adjusts and sets a driving current value (for example, 4mA) of the driving circuit module through a control operation, and collects a value (specifically, a digital signal value) of an output voltage (or referred to as a coupling output voltage) of the photosensor module in real time during a paper feeding process (i.e., during a printing process), and compares the collected value with a set reference voltage value.
When the collected voltage value is lower than a set reference voltage value (also called a required value), the first control signal is adjusted to gradually reduce the driving current of the driving circuit module to enable the output voltage of the sensor module to rise to a required value range, and when the collected voltage value is higher than the set reference voltage value (namely, higher than the set reference voltage value), the first control signal is adjusted to gradually increase the driving current of the driving circuit module to enable the output voltage (namely, the sensing signal) of the sensor module (namely, the photoelectric sensor module) to fall to a required voltage interval range.
The reference voltage (or called required value) can be set according to the saturation voltage of the phototriode receiving the infrared signal in the photosensor module, for example, after the driving current of the driving circuit module is adjusted, the output voltage of the phototriode circuit of the photosensor module is higher than the saturation voltage (Vsat) but not higher than Vsat + 0.1V.
In some embodiments, for printing of a label paper with a gap, for a newly installed paper (for example, a paper roll with a reel), a label may be manually learned, and during learning, a driving current of a driving circuit module (or referred to as an infrared emission lamp driving circuit, an infrared emission tube driving circuit) may be adjusted according to a first label paper and a first gap (gap) collection value, so that an output voltage value of a label collection position of a photosensor module is higher than a saturation voltage (Vsat) of a phototransistor and lower than the saturation voltage Vsat +0.1V, which may cause the phototransistor of the photosensor module to operate in a linear region (also referred to as a linear region), thereby identifying a difference between a label paper region and a gap region (or a gap region). The detection state of whether the label paper is installed can also set a corresponding reference voltage value so as to realize corresponding detection.
The utility model provides a photoelectric sensing device of printer, through circuit structure's design and application to and the cooperation of software and hardware, make can be as required dynamic adjustment sensor module's detectivity in the application, thereby can gather sensor module's output level and real-time dynamic adjustment detectivity and detection interval through same set of hardware circuit through software, satisfy the detection demand of all kinds of papers in the printer product is used. The detection requirements include, for example, black mark detection of bills, gap detection of labels, open/close cover detection of printers, and other functional requirements.
The photoelectric sensing device of the printer can also avoid replacing sensor modules in materials of different batches, and due to the fact that calibration levels are different (also called Rank range is wide), device parameter consistency and overall adaptability of the device are caused, and stable and effective operation of the photoelectric sensing device of the printer is achieved.
In some embodiments, for example, when the reflective photoelectric detection type photoelectric sensor is used for paper detection, the sensitivity is required to be high so as to facilitate a machine (printer) to accurately and quickly detect the paper, and it is desirable to reduce the sensitivity of the photoelectric sensor module so as to facilitate the distinction between the label paper and the gap in order to detect and distinguish the gap between the labels during the printing process of the label type paper. For example, for a paper sheet with a high reflectance, it is desirable that the sensitivity of the sensor module in the reflective photoelectric detection mode is low during application, so that the difference of the output levels of the sensors in various states can be better separated, and for a paper sheet with a low reflectance, it is desirable that the sensitivity is improved to facilitate the separation of the output levels of the sensors in various states. Printers include, for example, hand-held printers, or desktop printers, or other types of printers.
According to the technical scheme, the driving current can be finely adjusted by adjusting the first control signal, so that the detection sensitivity (the difference degree reflected by the output sensing signal) of the photoelectric sensor module can be adjusted. Therefore, the photoelectric sensing device of the printer can meet different application requirements, can adapt to the parameter difference of the sensors of different batches of materials during the mass production of the printer device, improves the production efficiency and ensures the product quality.
Aspects of the present application may be embodied entirely in hardware, entirely in software (including firmware, resident software, micro-code, etc.) or in a combination of hardware and software. The above hardware or software may be referred to as "data block," module, "" engine, "" unit, "" component, "or" system. The processor may be one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), digital signal processing devices (DAPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, or a combination thereof. Furthermore, aspects of the present application may be represented as a computer product, including computer readable program code, embodied in one or more computer readable media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips … …), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD) … …), smart cards, and flash memory devices (e.g., card, stick, key drive … …).
The computer readable medium may comprise a propagated data signal with the computer program code embodied therein, for example, on a baseband or as part of a carrier wave. The propagated signal may take any of a variety of forms, including electromagnetic, optical, and the like, or any suitable combination. The computer readable medium can be any computer readable medium that can communicate, propagate, or transport the program for use by or in connection with an instruction execution system, apparatus, or device. Program code on a computer readable medium may be propagated over any suitable medium, including radio, electrical cable, fiber optic cable, radio frequency signals, or the like, or any combination of the preceding.
Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.
Where numerals describing the number of components, attributes or the like are used in some embodiments, it is to be understood that such numerals used in the description of the embodiments are modified in some instances by the modifier "about", "approximately" or "substantially". Unless otherwise indicated, "about", "approximately" or "substantially" indicates that the number allows a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending upon the desired properties of the individual embodiments. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the range are approximations, in the specific examples, such numerical values are set forth as precisely as possible within the scope of the application.
Although the present application has been described with reference to the present specific embodiments, it will be recognized by those skilled in the art that the foregoing embodiments are merely illustrative of the present application and that various changes and substitutions of equivalents may be made without departing from the spirit of the application, and therefore, it is intended that all changes and modifications to the above-described embodiments that come within the spirit of the application fall within the scope of the claims of the application.
Claims (10)
1. An electro-optical sensing device for a printer, comprising:
the photoelectric sensor module is used for receiving a driving current signal and outputting a sensing signal according to a detection result of running paper of the printer;
the main control unit generates a first control signal based on a sensing signal of the photoelectric sensor module and a set reference voltage value;
the driving circuit module is coupled with the main control unit, generates a corresponding driving current signal according to the first control signal and transmits the driving current signal to the photoelectric sensor module;
the photoelectric sensor module monitors the printing process of running paper of the printer in a reflection type or transmission type photoelectric detection mode; the set reference voltage value is adjusted correspondingly according to the type of running paper of the printer, the photoelectric detection mode of the running paper and the parameter calibration grade of the photoelectric sensor module.
2. The photoelectric sensing device of a printer according to claim 1, wherein the driving circuit module comprises a filter rectifying circuit and a voltage-controlled current source circuit coupled thereto;
the filter rectification circuit receives the first control signal, generates a corresponding direct-current voltage signal and transmits the direct-current voltage signal to the voltage-controlled current source circuit;
the voltage-controlled current source circuit generates a corresponding driving current signal based on the direct current voltage signal.
3. The photoelectric sensing device of a printer according to claim 1, wherein the photoelectric sensor module comprises a photoelectric pair of an infrared emitting lamp and an infrared receiving sensor;
the infrared emission lamp receives the driving current signal and emits a corresponding infrared signal;
the infrared receiving sensor receives infrared signals reflected or transmitted by the running paper, and generates corresponding sensing signals based on the intensity value of the received infrared signals.
4. The photoelectric sensing apparatus of a printer according to claim 1, wherein a parameter calibration level of the photoelectric sensor module is calibrated according to a test result of detection sensitivity thereof.
5. The photo-sensing device of a printer according to claim 1, wherein said first control signal comprises a pulse width modulation signal, and said master control unit adjusting said first control signal comprises adjusting a duty cycle of said pulse width modulation signal.
6. The optoelectronic sensing device of a printer according to claim 1, wherein the running paper of the printer comprises continuous bill paper or label paper with slits or paper of different thickness or paper of different color or paper comprising color patches of different color.
7. The photoelectric sensor apparatus of a printer according to claim 1, wherein the set reference voltage value is set based on a target detection state of a running sheet of the printer during printing.
8. The photoelectric sensor apparatus of a printer according to claim 7, wherein the running paper of the printer comprises a continuous bill paper or a label paper having a slit;
when the running paper of the printer is continuous bill paper, the target detection state of the running paper is whether the bill paper is installed in the printer or not;
when the running paper of the printer is label paper with gaps, the target detection state of the running paper is whether the label paper with the gaps is installed in the printer or not and whether the running paper is located in a label paper area or not.
9. The photo-sensing device of a printer according to claim 1, wherein the photo-sensor module comprises a photo-transistor circuit, and the generating the first control signal based on the sensing signal of the photo-sensor module and the set reference voltage value comprises:
generating a first control signal based on a sensing signal of the photoelectric sensor module and a set reference voltage value, and enabling the photoelectric triode circuit to work in an amplification area;
the output voltage of the phototriode circuit is between a first set threshold and a second set threshold, and the first set threshold and the second set threshold are set based on the amplification region operating parameters of the phototriode circuit.
10. The photoelectric sensor apparatus of a printer according to claim 9, wherein the set reference voltage value is set based on a target detection state for a running sheet of the printer during printing; the running paper of the printer comprises continuous bill paper or label paper with gaps;
when the running paper of the printer is continuous bill paper, the photoelectric triode circuit works in the amplifying area when detecting whether the bill paper is arranged in the printer or not;
when the running paper of the printer is label paper with gaps, the photoelectric triode circuit works in the amplifying area when detecting whether the running paper is located in the label paper area.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117054378A (en) * | 2023-08-12 | 2023-11-14 | 深圳市华怡丰科技有限公司 | Label sensor adjustment method, system, equipment and storage medium |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5250813A (en) * | 1991-10-29 | 1993-10-05 | Oki Electric Industry Co., Ltd. | Print paper detecting circuits with gain reduction |
| CN1233563A (en) * | 1998-01-14 | 1999-11-03 | 塔利打印机有限公司 | Printer with distance device for printheads |
| US20020071104A1 (en) * | 1997-07-12 | 2002-06-13 | Kia Silverbrook | Image sensing apparatus including a microcontroller |
| US20050025554A1 (en) * | 2003-07-28 | 2005-02-03 | Canon Finetech Inc. | Printer and control method thereof |
| CN101402290A (en) * | 2007-10-05 | 2009-04-08 | 株式会社理光 | Image forming apparatus and image forming method |
| CN103105181A (en) * | 2011-11-15 | 2013-05-15 | 瑞萨电子株式会社 | Semiconductor device and sensor system |
| JP2015224120A (en) * | 2014-05-29 | 2015-12-14 | 株式会社沖データ | Image forming apparatus |
| CN106739555A (en) * | 2016-12-30 | 2017-05-31 | 南京富士通电子信息科技股份有限公司 | A kind of printer paper deviation-rectifying system and method for correcting error |
| CN107175923A (en) * | 2017-05-08 | 2017-09-19 | 陕西赛富网络科技有限责任公司 | Detect method, device and the printer of print paper material |
| CN206644487U (en) * | 2017-03-31 | 2017-11-17 | 厦门汉印电子技术有限公司 | A kind of adaptive photoelectricity is to feedback control circuit |
| CN109782554A (en) * | 2017-11-14 | 2019-05-21 | 夏普株式会社 | Sensor device and image forming apparatus |
| US20200084851A1 (en) * | 2016-02-12 | 2020-03-12 | O2Micro, Inc. | Light source driving circuits and light source module |
| CN210283611U (en) * | 2019-04-12 | 2020-04-10 | 漯河市慧光印刷科技有限公司 | Detection system of printing machine |
| CN111516397A (en) * | 2020-04-30 | 2020-08-11 | 厦门汉印电子技术有限公司 | Label paper identification method, device, equipment and readable storage medium |
| CN211968904U (en) * | 2020-04-15 | 2020-11-20 | 威海新北洋技术服务有限公司 | Mark identification assembly and printer |
| CN112373200A (en) * | 2020-10-28 | 2021-02-19 | 珠海泽冠科技有限公司 | Paper positioning and driving device of label printer and application method thereof |
| CN112721466A (en) * | 2020-12-31 | 2021-04-30 | 北京三快在线科技有限公司 | Label printing method and device and storage medium |
| CN113580784A (en) * | 2021-08-19 | 2021-11-02 | 上海商米科技集团股份有限公司 | Label printer and operation method thereof |
| CN113682060A (en) * | 2019-05-22 | 2021-11-23 | 厦门汉印电子技术有限公司 | Printing equipment, printing device and edge determining method of printing medium |
| US20220091057A1 (en) * | 2018-08-27 | 2022-03-24 | Sigmasense, Llc. | Sensing device with drive sense circuit and particle sensor and methods for use therewith |
| CN217514833U (en) * | 2022-07-06 | 2022-09-30 | 威海新北洋技术服务有限公司 | Printing medium detection device and printing equipment |
-
2022
- 2022-07-25 CN CN202210876907.9A patent/CN115107382A/en active Pending
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5250813A (en) * | 1991-10-29 | 1993-10-05 | Oki Electric Industry Co., Ltd. | Print paper detecting circuits with gain reduction |
| US20020071104A1 (en) * | 1997-07-12 | 2002-06-13 | Kia Silverbrook | Image sensing apparatus including a microcontroller |
| CN1233563A (en) * | 1998-01-14 | 1999-11-03 | 塔利打印机有限公司 | Printer with distance device for printheads |
| US20050025554A1 (en) * | 2003-07-28 | 2005-02-03 | Canon Finetech Inc. | Printer and control method thereof |
| CN101402290A (en) * | 2007-10-05 | 2009-04-08 | 株式会社理光 | Image forming apparatus and image forming method |
| CN103105181A (en) * | 2011-11-15 | 2013-05-15 | 瑞萨电子株式会社 | Semiconductor device and sensor system |
| JP2015224120A (en) * | 2014-05-29 | 2015-12-14 | 株式会社沖データ | Image forming apparatus |
| US20200084851A1 (en) * | 2016-02-12 | 2020-03-12 | O2Micro, Inc. | Light source driving circuits and light source module |
| CN106739555A (en) * | 2016-12-30 | 2017-05-31 | 南京富士通电子信息科技股份有限公司 | A kind of printer paper deviation-rectifying system and method for correcting error |
| CN206644487U (en) * | 2017-03-31 | 2017-11-17 | 厦门汉印电子技术有限公司 | A kind of adaptive photoelectricity is to feedback control circuit |
| CN107175923A (en) * | 2017-05-08 | 2017-09-19 | 陕西赛富网络科技有限责任公司 | Detect method, device and the printer of print paper material |
| CN109782554A (en) * | 2017-11-14 | 2019-05-21 | 夏普株式会社 | Sensor device and image forming apparatus |
| US20220091057A1 (en) * | 2018-08-27 | 2022-03-24 | Sigmasense, Llc. | Sensing device with drive sense circuit and particle sensor and methods for use therewith |
| CN210283611U (en) * | 2019-04-12 | 2020-04-10 | 漯河市慧光印刷科技有限公司 | Detection system of printing machine |
| CN113682060A (en) * | 2019-05-22 | 2021-11-23 | 厦门汉印电子技术有限公司 | Printing equipment, printing device and edge determining method of printing medium |
| CN211968904U (en) * | 2020-04-15 | 2020-11-20 | 威海新北洋技术服务有限公司 | Mark identification assembly and printer |
| CN111516397A (en) * | 2020-04-30 | 2020-08-11 | 厦门汉印电子技术有限公司 | Label paper identification method, device, equipment and readable storage medium |
| CN112373200A (en) * | 2020-10-28 | 2021-02-19 | 珠海泽冠科技有限公司 | Paper positioning and driving device of label printer and application method thereof |
| CN112721466A (en) * | 2020-12-31 | 2021-04-30 | 北京三快在线科技有限公司 | Label printing method and device and storage medium |
| CN113580784A (en) * | 2021-08-19 | 2021-11-02 | 上海商米科技集团股份有限公司 | Label printer and operation method thereof |
| CN217514833U (en) * | 2022-07-06 | 2022-09-30 | 威海新北洋技术服务有限公司 | Printing medium detection device and printing equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117054378A (en) * | 2023-08-12 | 2023-11-14 | 深圳市华怡丰科技有限公司 | Label sensor adjustment method, system, equipment and storage medium |
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