CN101293428A - Method and circuit for simulation of response characteristic applied to ink jet printer - Google Patents
Method and circuit for simulation of response characteristic applied to ink jet printer Download PDFInfo
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Abstract
The invention discloses a method and a circuit applied to the simulated excitation response characteristic of an ink-jet printer; wherein, the circuit comprises an oscillation circuit, a resistance-capacitance network and a nonlinearity module; the oscillation circuit and the nonlinearity module are embedded, connected in parallel or in series in the resistance-capacitance network; wherein, the ink-jet printer provides an actuating signal for the circuit and detects the resonance characteristic of the excitation response of the actuating signal set by the ink-jet printer obtained by the oscillation circuit as well as the charging and discharging characteristics of the excitation response of the actuating signal set by the ink-jet printer obtained by the resistance-capacitance network that is embedded as well as connected in parallel or in series in the nonlinearity module. Therefore, the method and the circuit provided by the invention can be analogously matched with the excitation response characteristic set by the ink-jet printer.
Description
Technical Field
The invention relates to the field of ink-jet printers, in particular to a method and a circuit for simulating an excitation response characteristic applied to an ink-jet printer.
Background
In addition to the printing information recorded on the ink jet printer, the printing information of the ink jet printer is recorded on a memory chip, as shown in fig. 1, wherein the memory chip is generally fixed on the ink cartridge and is used for controlling the matching of the ink cartridge and the ink jet printer and providing the printing information in the subsequent printing process, and in the memory chip, initial information about the type, color, total amount of ink and the like of the ink cartridge and printing information about the printing date, the remaining amount of ink and the like obtained in the subsequent printing process are recorded. The ink-jet printer stores initial information such as the model and color of a preset ink box.
When the ink-jet printer starts printing, the ink-jet printer controls the ink in the application ink box to print after detecting the initial information stored in the memory chip. During printing, the inkjet printer records printing information such as the date of printing, the remaining amount of ink in the ink cartridge, and the like.
In the working process, the ink-jet printer transmits the printing information such as the printing date and the ink allowance in the ink box to the memory chip for storage, and if the data read out from the memory chip by the ink-jet printer shows that the ink allowance in the ink box is insufficient, the ink-jet printer reminds the user to replace or stop controlling the printing process.
Therefore, in the printing process of the ink-jet printer, the ink box installed on the ink-jet printer needs to be detected in a mode of detecting initial information stored in a storage chip fixed on the ink box, and the ink-jet printer can print the information after the detection is successful. The method is used by ink-jet printer manufacturers, and the initial information of the ink-jet printer which is detected to pass is set on the storage chip fixed on the ink box, so that monopoly sales and additional sales are carried out on the ink box used by the ink-jet printer, and the cost of using the ink-jet printer by a user is increased.
The manufacturer of the ink jet printer also applies this method to the determination of whether the remaining amount of ink in the ink cartridge is sufficient, and the specific process will be described in detail below.
Fig. 2 is a schematic view of communication interaction among an existing inkjet printer, a memory chip, and a piezoelectric sensor module, and based on the structure shown in fig. 1, in order to measure the ink remaining amount of an ink cartridge, a piezoelectric sensor module is further disposed in the ink cartridge, and the piezoelectric sensor module is composed of a cavity located in the ink cartridge and piezoelectric ceramics adhered to the cavity. When the ink allowance in the ink box is detected, the ink-jet printer sends a direct current pulse with higher voltage to the piezoelectric sensor module, and the direct current pulse can cause the piezoelectric sensor module to generate mechanical deformation, namely knocking the cavity once; subsequently, the resonance generated by the cavity will cause the piezoelectric ceramic to vibrate, and a corresponding excitation response is generated and detected by the ink-jet printer. Because the frequency characteristics of different excitation responses represent the ink capacity information in the ink box, the ink jet printer can determine the ink residual amount in the current ink box according to the detected frequency characteristics of the excitation responses, and remind a user to replace the ink box in time or control the printing main body not to print any more according to the determined result that the ink residual amount is insufficient.
The piezoelectric sensor module may be disposed on the memory chip or separately affixed to the ink cartridge.
In order to monopolize the ink box further, an ink-jet printer manufacturer utilizes the characteristics of the piezoelectric sensor module, the ink-jet printer can detect the resonance characteristics of the piezoelectric sensor module, and can also detect the charging and discharging characteristics of the piezoelectric sensor module under different polarities, different voltages or different time lengths, and the like, thus, when determining the ink allowance in the ink box, the detected various characteristics of the piezoelectric sensor module are matched with the preset various characteristics with the ink allowance, whether the ink box is allowed to be used or not is determined according to the matching result, and a user is reminded and the continuous printing is determined according to the determined result that the ink allowance is insufficient. For example: the ink jet printer sends an excitation signal to the piezoelectric sensor module, wherein the excitation signal can be a signal cancelled after the piezoelectric sensor module is charged, and the ink jet printer detects the excitation response of the piezoelectric sensor module to obtain the resonance characteristic and the charge-discharge characteristic of the excitation response, and is used for matching the characteristic of the excitation response preset by the ink jet printer; for another example, the inkjet printer sends an excitation signal to the piezoelectric sensor module, where the excitation signal may be a dc pulse with a higher voltage and different power supply polarities, and the inkjet printer detects an excitation response of the piezoelectric sensor module, where the excitation response is an excitation response characteristic under different power supply polarities and is used to match a characteristic of an excitation response preset by the inkjet printer.
It can be seen that, since the inkjet printer manufacturer sets the process of matching the ink cartridge on the inkjet printer, especially the process of matching whether the ink remaining amount of the ink cartridge is sufficient, in order to normally use the inkjet printer provided by the inkjet printer manufacturer, the inkjet printer manufacturer must be used to provide the ink cartridge, which brings inconvenience and increases cost to the user, and also limits the fair competition opportunities of other ink cartridge manufacturers.
In addition, because this kind of ink jet printer manufacturer has set up on ink jet printer's ink jet printer whether sufficient process of the ink surplus who matches the ink horn, need reform transform the ink horn, fixed piezoelectric sensor module, consequently, the ink horn that does not have the ink can't be retrieved and recycled, has caused environmental pollution.
Disclosure of Invention
In view of the above, the present invention provides a circuit for simulating an excitation response characteristic applied to an ink jet printer, which is capable of simulating an excitation response characteristic matched to a setting of the ink jet printer.
The present invention also provides a method of simulating an excitation response characteristic applied to an ink jet printer, which is capable of simulating an excitation response characteristic matched to a setting of the ink jet printer.
According to the above purpose, the technical scheme of the invention is realized as follows:
a circuit for simulating the excitation response characteristic of ink-jet printer is composed of an oscillator, a resistor-capacitor network and a non-linear module, which are embedded in said resistor-capacitor network, connected in parallel or serially,
the ink-jet printer adds an excitation signal to the circuit, detects the resonance characteristic of the excitation response set by the ink-jet printer obtained by the excitation signal through the oscillation circuit, and detects the charge-discharge characteristic of the excitation response set by the ink-jet printer obtained by the excitation signal through the resistance-capacitance network of the embedded, parallel or serial nonlinear module.
Preferably, the resistor-capacitor network of the embedded, parallel or serial nonlinear module obtains the ultra-long time charge-discharge characteristic of the set excitation response of the ink-jet printer.
Preferably, the circuit further comprises a positive and negative polarity circuit for detecting the charge and discharge characteristics of the ink-jet printer under the positive and negative polarities of the set excitation response of the ink-jet printer obtained by the excitation signal through the resistance-capacitance network of the embedded, parallel or serial nonlinear module and the positive and negative polarity circuit.
Preferably, one end of the positive and negative polarity circuit is connected to the rc network, and the other end is connected to another node of the rc network or ground.
Preferably, when the two ends of the forward and reverse polarity circuit are connected to the resistor-capacitor network, the oscillating circuit is composed of an inductor (L2) and a capacitor (C4) in parallel; the resistance-capacitance network embedded into the nonlinear module consists of a capacitor (C5), a resistor (R3), a capacitor (C6), a resistor (R4) and the nonlinear module; the positive and negative polarity circuit consists of a resistor (R2) and a field effect transistor (Q1); wherein,
the capacitor (C5) is connected in series with the oscillating circuit, the positive and negative polarity circuit, the resistor (R3) and the capacitor (C6) are connected in series and then connected in parallel with a circuit obtained by connecting the oscillating circuit and the capacitor (C5) in series, and the resistor (R4) and the nonlinear module are connected in series and then connected in parallel with the capacitor (C6).
Preferably, when one end of the positive and negative polarity circuit is connected to the resistor-capacitor network of the circuit and the other end is grounded, the positive and negative polarity circuit is formed by connecting a capacitor (C9) and a resistor (R5) in series; the resistance-capacitance network consists of a capacitor (C8), a capacitor (C10) and a resistor (R7), wherein the capacitor (C8), the oscillating circuit and the capacitor (C10) are connected in series and then are connected to two excited ends of the circuit, and the resistor (R7) and the nonlinear module are connected in series and then are connected to two excited ends of the circuit;
or the positive and negative polarity circuit is formed by connecting a capacitor (C11) and a resistor (R7) in series; the resistance-capacitance network is composed of a capacitor (C8), a capacitor (C10) and a resistor (R7), the capacitor (C8), the oscillating circuit and the capacitor (C10) are connected in series and then connected with two excited ends of the circuit in parallel, and the resistor (R7) and the nonlinear module are connected in series and then connected with the two excited ends of the circuit.
Preferably, the positive and negative polarity circuit has three ports, two ends of the three ports are respectively connected to the rc network of the circuit, and the third end is grounded.
Preferably, the positive and negative polarity circuit is formed by connecting a capacitor (C9), a resistor (R5), a resistor (R6) and a capacitor (C11) in series, and the resistor (R5) and the capacitor (R6) are grounded; the resistance-capacitance network consists of a capacitor (C8), a capacitor (C10) and a resistor (R7), wherein the capacitor (C8), the oscillating circuit and the capacitor (C10) are connected in series and then are connected to two excited ends of the circuit, and the resistor (R7) and the nonlinear module are connected in series and then are connected to two excited ends of the circuit.
Preferably, the oscillation circuit or the circuit is further configured to generate an excitation response indicating that the remaining amount of ink in the ink cartridge is insufficient according to the control signal when receiving the control signal indicating that the remaining amount of ink in the ink cartridge is insufficient sent by the memory chip, and feed back the excitation response to the inkjet printer.
Preferably, the oscillation circuit is an LC parallel or series circuit capable of generating an oscillation signal, a semiconductor integrated block with a resonance function, or a single chip microcomputer control circuit;
preferably, the nonlinear module is composed of a nonlinear device and at least one capacitor.
A method of simulating an excitation response characteristic for use in an ink jet printer, the method comprising: the method comprises the following steps of setting a circuit comprising an oscillating circuit, a resistance-capacitance network and a nonlinear module, wherein the oscillating circuit and the nonlinear module are embedded into, connected in parallel or connected in series in the resistance-capacitance network, and the method also comprises the following steps:
the ink-jet printer adds an excitation signal to the circuit, detects the resonance characteristic of the excitation response set by the ink-jet printer obtained by the excitation signal through the oscillation circuit, and detects the charge-discharge characteristic of the excitation response set by the ink-jet printer obtained by the excitation signal through the resistance-capacitance network of the embedded, parallel or serial nonlinear module.
Preferably, the charge-discharge characteristic of the excitation response set by the inkjet printer, obtained by detecting the excitation signal through the resistor-capacitor network of the embedded, parallel or serial nonlinear module, is an ultra-long-time charge-discharge characteristic.
Preferably, the circuit is further provided with a positive and negative polarity circuit, and the detected charge and discharge characteristics of the excitation response set by the ink-jet printer are as follows:
and the charge-discharge characteristics under the positive and negative polarities of the excitation response set by the ink-jet printer are obtained through the embedded, parallel or serial nonlinear module and the resistance-capacitance network of the positive and negative polarity circuit.
Preferably, the method further comprises:
the circuit receives a control signal which is sent by the memory chip and indicates that the ink residual quantity in the ink box is insufficient, and generates an excitation response which indicates that the ink residual quantity in the ink box is insufficient and feeds the excitation response back to the ink-jet printer according to the control signal.
According to the scheme, the circuit simulating the excitation response characteristic is arranged, is fixed on the ink box or is arranged independently and comprises the oscillating circuit, the resistance-capacitance network and the nonlinear module, when the ink-jet printer adds an excitation signal to the circuit, the resonance characteristic of the excitation response set by the ink-jet printer is detected and obtained through the circuit, the charge and discharge characteristic of the excitation response set by the ink-jet printer is detected and obtained, and furthermore, the ultra-long charge and discharge characteristic of the excitation response set by the ink-jet printer is detected and obtained. Therefore, the method and the circuit provided by the invention can simulate the excitation response characteristic matched with the set ink-jet printer, the ink-jet printer is successfully matched after detecting the excitation response characteristic, the continuous printing is controlled without informing the user to replace the ink box, so that the special ink box provided by the ink-jet printer manufacturer is not needed, the convenience and the cost are brought to the user, and the fair competition opportunity is provided for other ink box manufacturers. Furthermore, the method and the circuit provided by the invention do not need to modify the ink box and fix the piezoelectric sensor module. Therefore, the ink box without ink can be recycled, and the pollution to the environment is reduced.
Drawings
FIG. 1 is a schematic diagram of the communication interaction between a conventional ink jet printer and a memory chip;
FIG. 2 is a schematic diagram of the communication interaction between a conventional ink jet printer, a memory chip, and a piezoelectric sensor module;
FIG. 3 is a schematic diagram of a circuit structure for simulating an excitation response characteristic according to the present invention;
FIG. 4 is a flow chart of a method of simulating an excitation response characteristic for use in an ink jet printer according to the present invention;
FIG. 5 is a schematic diagram of an embodiment of a circuit for simulating an excitation response characteristic provided by the present invention;
FIG. 6 is a schematic diagram of a circuit embodiment for simulating an excitation response characteristic according to the present invention;
FIG. 7 is a schematic diagram of a second structure of a circuit for simulating an excitation response characteristic according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a second embodiment of a circuit for simulating an excitation response characteristic according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
In the case that the inkjet printer determines whether the ink in the ink cartridge is full, the method shown in fig. 2 in the prior art is an excitation detection method, that is, after the inkjet printer adds an excitation signal to the piezoelectric sensor module, the excitation response characteristic of the piezoelectric sensor module is detected, and the inkjet printer determines whether to continue printing according to comparison between a preset excitation response characteristic indicating that the ink in the ink cartridge is full and the detected excitation response characteristic. Therefore, in order to obtain the excitation response characteristic which can be matched with the excitation response characteristic preset by the ink-jet printer and not use a special ink box provided with a piezoelectric sensor module and provided by an ink-jet printer manufacturer, the invention is provided with a circuit for simulating the excitation response characteristic, and the circuit is composed of an oscillating circuit, a resistance-capacitance network and a nonlinear module and is used for simulating the excitation response characteristic set by the ink-jet printer.
In the invention, the circuit comprises a resistance-capacitance network which is a circuit formed by at least one resistor, at least one capacitor and the like, and the resistor and the capacitor can adopt any series-parallel combination. The invention embeds, connects or connects the nonlinear module with super-long time charge-discharge characteristic in the resistance-capacitance network in series or in parallel, and simulates the charge-discharge characteristic of the excitation response set by the ink-jet printer or the charge-discharge characteristic with super-long time.
Fig. 3 is a schematic diagram of a circuit structure of a simulated excitation response provided by the present invention, where the circuit includes an oscillating circuit, a resistance-capacitance network, and a nonlinear module, and the oscillating circuit and the nonlinear module may be embedded in, connected in parallel, or connected in series to the resistance-capacitance network. Wherein,
the oscillation circuit is used for simulating the resonance characteristic of the excitation response set by the ink-jet printer; and the resistance-capacitance network is embedded, connected in parallel or connected in series with the nonlinear module and is used for simulating the charge-discharge characteristic with ultra-long time of the excitation response set by the ink-jet printer or simulating the charge-discharge characteristic of the excitation response set by the ink-jet printer.
Before or during the operation of the ink-jet printer, the circuit is detected, an excitation signal is added to the circuit between two end points of the circuit, namely the two end points of P1 and P2, the resonance characteristic of the excitation response set by the ink-jet printer obtained by the excitation signal through the oscillation circuit is detected, and the charge-discharge characteristic or the charge-discharge characteristic with ultra-long time of the excitation response set by the ink-jet printer obtained through the resistance-capacitance network of the embedded, parallel or serial nonlinear module is detected.
The circuit may be fixed to the cartridge or may be provided on a memory chip fixed to the cartridge or may be separately located.
Specifically, the circuit may further include a positive and negative polarity circuit for simulating a charge and discharge characteristic in positive and negative polarities or a charge and discharge characteristic having an excessively long time of an excitation response set by the ink jet printer.
Generally, the resistance-capacitance network can simulate the charge-discharge characteristics of the excitation response set by the ink-jet printer, and the effect of embedding, parallel connection or series connection of the nonlinear modules in the resistance-capacitance network is that the charge-discharge characteristics of the excitation response set by the ink-jet printer can be met under the condition of long charge-discharge time. Specifically, the ultra-long time is far longer than the time for fully charging or discharging all capacitors in the rc network of the non-embedded, non-parallel or non-serial non-linear module, and the characteristic value of the non-linear module is continuously increased along with the increase of the charging/discharging time, so that compared with the rc network of the non-embedded, non-parallel or non-serial non-linear module, the ultra-long time is extremely long to complete the charging/discharging.
In the invention, different excitation response characteristics of the circuit can be detected and obtained by the ink-jet printer with different charging and discharging time when the circuit is added with the excitation signal, but the charging and discharging time adopted when the circuit is added with the excitation signal by the ink-jet printer is long enough to fully fill or discharge all capacitors of the resistance-capacitance network in the circuit, and the excitation response characteristics of the circuit obtained by detection are not different. The nonlinear module is introduced to enable the resistance-capacitance network of the embedded, parallel or serial nonlinear module to detect the excitation response characteristic and time dependence of the circuit within a wider range of charge and discharge time length compared with the resistance-capacitance network of the non-embedded, non-parallel or non-serial nonlinear module when an ink-jet printer adds an excitation signal to the circuit.
In specific implementation, the circuit can also simulate the non-overlong charging and discharging characteristics set by the ink-jet printer, and different parameters are set for the nonlinear module only according to the requirements of the simulated charging and discharging characteristics of the ink-jet printer. The present invention is illustrated by simulating the ultra-long time charging and discharging characteristics set by an ink jet printer.
Fig. 4 is a flowchart of a method for simulating an excitation response characteristic applied to an inkjet printer, which is provided with a circuit composed of an oscillation circuit, a resistance-capacitance network and a nonlinear module, and includes the following specific steps:
In specific implementation, the method can also simulate the non-overlong charge and discharge characteristics set by the ink-jet printer, and only different parameters need to be set for the nonlinear module according to the requirements of the simulated charge and discharge characteristics of the ink-jet printer.
Specifically, there are two types of excitation detection methods employed by an ink jet printer, one of which is a power-on pulse method, also called a charging method; the other is a short circuit method, also called a discharge method. In specific implementation, different excitation detection methods can be formed by different charging time lengths, charging voltage polarities, discharging time lengths, charging and discharging times, charging and discharging sequences and the like.
In different excitation detection methods, different combinations of excitation signals are assigned. There will also be differences in the excitation response characteristics that the ink jet printer detects the circuitry provided by the present invention to match the ink jet printer settings. For convenience of description, the excitation detection method can be divided into three categories:
the first type: resonance characteristic excitation detection, wherein an excitation signal cancels the circuit provided by the invention after charging and discharging excitation for a plurality of times, and an ink-jet printer detects that the excitation response characteristic obtained by the circuit is a gradually attenuated sinusoidal alternating voltage, the frequency, the amplitude, the phase and the like of the sinusoidal alternating voltage are in a set range and are matched with the resonance characteristic of the excitation response set by the ink-jet printer;
the second type: the method comprises the following steps of detecting the excitation of charging characteristics, cancelling the excitation signal after the circuit provided by the invention is subjected to charging excitation, detecting the excitation response characteristic obtained by the circuit by an ink-jet printer as gradually reduced voltage, wherein the voltage-time curve has the characteristics set by the ink-jet printer and is matched with the charging characteristics of the excitation response set by the ink-jet printer;
in the third category: discharge characteristic excitation detection, wherein an excitation signal is cancelled after the circuit provided by the invention is discharged, the ink-jet printer detects that the excitation response characteristic obtained by the circuit is gradually increased voltage, and the voltage-time curve has the characteristics set by the ink-jet printer and is matched with the discharge characteristic of the excitation response set by the ink-jet printer.
Specifically, the present invention may be implemented in three embodiments, each described in detail below, of an excitation response analog circuit.
Example one
Fig. 5 is a schematic structural diagram of a first embodiment of a circuit for simulating an excitation response characteristic according to the present invention, where the analog circuit includes an oscillating circuit, a rc network, a non-linear module, and a forward/reverse polarity circuit.
Wherein, the two ends of the positive and negative polarity circuit are respectively connected with the resistance-capacitance network; the nonlinear module and the oscillation circuit are embedded into a resistor-capacitor network, and two endpoints P3 and P4 in the figure are excited ends of the ink-jet printer, so that the ink-jet printer adds an excitation signal between P3 and P4 and detects the excitation response characteristic of the circuit.
In this embodiment, the non-linear module, the oscillating circuit and the positive and negative polarities are all embedded in the RC network.
The oscillation circuit can be an LC parallel or series circuit, a semiconductor integrated block with a resonance function, a singlechip control circuit and other circuits capable of generating oscillation signals, and is used for simulating and obtaining the resonance characteristic of the excitation response set by the ink-jet printer after the ink-jet printer adds an excitation signal to the circuit, and detecting the resonance characteristic by the ink-jet printer to finish the excitation detection of the resonance characteristic.
And the resistance-capacitance network is embedded with the nonlinear module and the positive and negative polarity circuits and used for simulating and obtaining the charge and discharge characteristics with overlong time under different polarities of the set excitation response of the ink-jet printer after the ink-jet printer adds an excitation signal to the circuits, and the charge and discharge characteristics are detected by the ink-jet printer to finish the excitation detection of the charge characteristics or/and the discharge characteristics under different polarities.
Of course, fig. 5 is only one embodiment of the present invention, and the non-linear module, the oscillating circuit or the positive and negative polarity circuit may be connected in series or in parallel with the whole or part of the rc network.
Specifically, the circuit shown in fig. 6 may be used for implementation, in fig. 6, the inductor L2 and the capacitor C4 form an oscillation circuit, the capacitor C5, the resistor R3, the capacitor C6, the resistor R4, and the nonlinear module form a resistance-capacitance network embedded in the nonlinear module, and the resistor R2 and the field-effect transistor Q1 (shown as the junction field-effect transistor Q1 in the figure, but the present invention is not limited thereto) form a positive polarity circuit and a negative polarity circuit. Since the characteristic value of the nonlinear module varies with the voltage within a certain voltage range, the characteristic value of the resistor R4 and the nonlinear module in series is also varied, and the product of the resistor R3 and the capacitor C6 is fixed and smaller. Specifically, the capacitor C5 is connected in series with the oscillation circuit, the positive and negative polarity circuit, the resistor R3 and the capacitor C6 are connected in series and then connected in parallel with a circuit obtained by connecting the oscillation circuit and the capacitor C5 in series, and the resistor R4 and the nonlinear module are connected in series and then connected in parallel with the capacitor C6. In the figure, two terminals P5 and P6 are excited terminals of the circuit, and an additional excitation signal is applied to the ink-jet printer between the two terminals P5 and P6, and the excitation response characteristic obtained by the circuit is detected.
In this embodiment, the non-linear module may include at least one of a capacitor and a non-linear device, and may further include other devices such as a resistor, as needed.
In fig. 6, it is sufficient to add an excitation signal, i.e., a dc pulse with a higher voltage, between two terminals P5 and P6, and detect a resonance characteristic in an excitation response between two points P5 and P6, i.e., a resonance characteristic indicating that ink in the ink cartridge is full is obtained by adding the excitation signal to the inductor L2 and the capacitor C4, and the generated resonance frequency and amplitude indicating that ink in the ink cartridge is full depend on parameters of the inductor L2 and the capacitor C4, and the parameters of the inductor L2 and the capacitor C4 are configured to generate the resonance characteristic indicating that ink in the ink cartridge is full.
In fig. 6, when the excitation signal is added between P5 and P6, i.e., a voltage is applied, the capacitor C5 is charged quickly, the capacitor C6 is charged slowly due to the effect of the resistor R3, and the capacitors in the non-linear block are charged more slowly due to the effect of the resistor R3, the resistor R4, and the non-linear devices in the non-linear block. When the capacitance C6 and the capacitance in the non-linear block are not yet full, the additional excitation signal between P5 and P6 is removed. Since the voltage across the capacitor C5 is higher than the voltage across the capacitor C6 and the voltage across the capacitor C6 is higher than the capacitance in the non-linear block, the capacitor C5 will discharge charge to the capacitor C6 and the capacitance in the non-linear block. The excitation response characteristic detected between P5 and P6 is a rapid voltage drop. In a concrete implementation, it is sufficient to select excitation response characteristics indicating ink fullness in the ink cartridge that match the set excitation response characteristics of the ink jet printer, that is, to set parameters of the resistor R3, the resistor R4, the nonlinear block, the capacitor C5, and the capacitor C6 that satisfy the charging characteristics for an excessively long time that match the excitation response set by the ink jet printer in the excitation detection of the charging characteristics.
In fig. 6, when the stimulus signal, i.e., voltage, is applied between P5 and P6, capacitor C5 is charged fully, the capacitor C6 and the capacitors in the non-linear blocks are also charged, a short circuit is immediately made between P5 and P6, capacitor C5 is discharged, and then the additional stimulus signal between P5 and P6 is removed. Since the capacitor C6 and the capacitor in the non-linear module discharge slowly due to the influence of the resistor R3, the resistor R4 and the non-linear devices in the non-linear module, and a small voltage remains between the capacitor C6 and the capacitor in the non-linear module in a short time, the charge stored by the capacitor C6 and the capacitor in the non-linear module is transferred into the capacitor C5 through the resistor R3 after the excitation signal is removed, so that the excitation response characteristic detected between the P5 and the P6 is a gradual voltage rise, and the voltage-time curve required by the ink-jet printer can be simulated by properly adjusting the parameters.
From the characteristics of the nonlinear devices in the nonlinear module, when the voltage across the nonlinear devices is lower than a certain value, the characteristic value of the nonlinear devices is quite close to open circuit, so that even after P5 and P6 are short-circuited for a long time, a certain residual voltage still remains across the capacitor in the nonlinear module, and the nonlinear module is like short-term memory exists. If the last excitation detection is repeated again, the voltage-time curves detected between P5 and P6 will have a significant difference due to the initial voltage of the capacitor in the non-linear module. This is also one of the characteristics required for an ink jet printer.
In fig. 6, due to the resistor R4 and the non-linear module, when the capacitor C6 is completely charged or discharged, if the additional excitation signal between P5 and P6 is not removed, the capacitor in the non-linear module will further charge and discharge. Therefore, the difference of the characteristics of the excitation response detected between P5 and P6, namely the difference of the curve characteristics of voltage and time, can be simulated under the condition that the charging and discharging time is over long, the charging and discharging time is different.
In fig. 6, when the additional excitation signal between P5 and P6 is a forward voltage, i.e., the voltage of P5 is higher than the voltage of P6, the fet Q1 is turned off, and the resistance across the resistor R2 is approximately equal to the resistance of the resistor R2 itself; when the additional excitation signal between the P5 and the P6 is a reverse voltage and the P5 voltage is lower than the P6 voltage, the fet Q1 is turned on, which shorts the resistor R2. Thus, the polarity of the additional excitation signal between P5 and P6 is different, the circuit provided by the present invention has different impedances and time constants, and the characteristics of the excitation response detected between P5 and P6 will also have a difference in polarity.
The positive and negative polarity circuit shown in fig. 6 is implemented by using an active device, and in specific implementation, the above functions may be implemented by using a passive device, and reference may be made to embodiment two for a specific example in which the positive and negative polarity circuit is formed by using a passive device.
Example two
Fig. 7 is a schematic structural diagram of a second embodiment of a circuit for simulating an excitation response characteristic according to the present invention, where the analog circuit includes an oscillating circuit, a rc network, a non-linear module, and a forward/reverse polarity circuit. The positive and negative polarity circuit is provided with three ports, wherein two ends of the positive and negative polarity circuit are respectively connected to the resistance-capacitance network, and the third end of the positive and negative polarity circuit is grounded; the nonlinear module and the oscillating circuit are embedded into a resistor-capacitor network, and two endpoints P7 and P8 are printer excited ends in the figure, so that the ink-jet printer adds an excitation signal between P7 and P8 and detects the excitation response characteristic of the circuit.
In this embodiment, the non-linear module, the oscillating circuit and the positive and negative polarity circuit are all embedded in the rc network.
The oscillation circuit can be a LC parallel or series circuit, a semiconductor integrated block with resonance function, a singlechip control circuit and other circuits capable of generating oscillation signals, and is used for simulating and obtaining the resonance characteristic of the excitation response set by the ink-jet printer after the ink-jet printer adds an excitation signal to the circuit, and detecting the resonance characteristic by the ink-jet printer to finish the excitation detection of the resonance characteristic.
And the resistance-capacitance network is embedded with a nonlinear module and a positive and negative polarity circuit and is used for simulating and obtaining the charge and discharge characteristics with ultra-long time under different polarities of the set excitation response of the ink-jet printer after the ink-jet printer adds an excitation signal, and the charge and discharge characteristics are detected by the ink-jet printer to complete the excitation detection of the charge characteristics or/and the excitation detection of the discharge characteristics under different polarities.
Of course, fig. 7 is only one embodiment of the present invention, and the oscillation circuit, the nonlinear module or the forward and reverse polarity circuit may be connected in series or in parallel with the whole or part of the rc network.
In particular, in implementation, the analog circuit shown in fig. 8 can be used, in fig. 8, the resonant module M1 is an oscillating circuit, and the resonant module M1 can simulate and match any voltage signal frequency required by the inkjet printer, so that the flexibility is high; the resonance module M1 may be an element circuit or an integrated semiconductor chip, which can save cost and reduce the volume of the analog circuit when the resonance module M1 is an integrated semiconductor chip. The positive and negative polarity circuit is formed by connecting a capacitor C9, a resistor R5, a resistor R6 and a capacitor C11 in series, and the resistor R5 and the capacitor R6 are grounded; the resistance-capacitance network consists of a capacitor C8, a capacitor C10 and a resistor R7, the capacitor C8, the resonant module M1 and the capacitor C10 are connected in series and then connected to the excited two ends (P9 and P10) of the circuit, and the resistor R7 and the nonlinear module are connected in series and then connected to the excited two ends of the circuit.
In this embodiment, the non-linear module may include at least one of a capacitor and a non-linear device, and may further include other devices such as a resistor, as needed.
In fig. 8, as shown by the characteristic that the characteristic value of the nonlinear device in the nonlinear block sharply decreases with the increase of the voltage in the breakdown range, the characteristic value of the resistor R7 in series with the nonlinear block is also variable and larger, and the product of the resistor R5 and the capacitor C9 and the product of the resistor R6 and the capacitor C11 are fixed and smaller. The purpose of introducing the resistor R7 and the nonlinear module is the same as the function of introducing the resistor R4 and the nonlinear module in fig. 6, and is used for simulating the characteristic difference of the excitation response detected between P9 and P10 under various excitations with different charging and discharging time, particularly the characteristic difference of the excitation response detected between P9 and P10 under the excitation with ultra-long charging and discharging time.
In fig. 8, the ground is the ground of the inkjet printer.
In fig. 8, in the case of the positive polarity, the capacitance C8, the capacitance C10, the capacitance C11, the nonlinear block, the resistance R6, and the resistance R7 that realize the excitation detection of the charge-discharge characteristic for the ultra-long time; in the case of reverse polarity, the capacitor C8, the capacitor C9, the capacitor C10, the nonlinear module, the resistor R5 and the resistor R7 are used for realizing the excitation detection of the charge and discharge characteristics.
Similar to the circuit described in fig. 6, the characteristics of the excitation response indicating the ink filling in the ink cartridge set in the inkjet printer are selected, that is, the parameters of the components that satisfy the excitation characteristics matching the charging and discharging of the inkjet printer are set at the time of the excitation detection of the charging and discharging characteristics under different polarities. The resistance values of the resistor R5 and the resistor R7 are different, and the parameters of the capacitor C9 and the capacitor C11 are different.
In fig. 8, the charge and discharge characteristic circuits used under the positive and negative polarities are different, so that the adjustment is convenient and the flexibility is strong.
In specific implementation, the positive and negative polarity circuit may have only two ends, one end of the positive and negative polarity circuit is connected to the rc network of the circuit, and the other end of the positive and negative polarity circuit is grounded. For example, as shown in fig. 8, the positive and negative polarity circuit only includes a circuit in which a capacitor C9 and a resistor R5 are connected in series, wherein one end of the capacitor C9 is connected to the rc network, and one end of the resistor R5 is grounded; or only a circuit formed by serially connecting the capacitor C11 and the resistor R6 is adopted, wherein one end of the resistor R7 is grounded, and one end of the capacitor C11 is connected to the resistance-capacitance network.
EXAMPLE III
The invention can also connect the circuit for simulating the excitation response characteristic with the storage chip bound on the ink box, in particular, connect the control unit of the storage chip with the oscillation circuit. When the storage chip detects that the stored printing information shows that the ink residual quantity in the ink box is empty, the control unit sends a control signal to the oscillating circuit of the circuit, and after the oscillating circuit receives the control signal, the characteristic of the excitation response obtained after the oscillating circuit receives the excitation signal is changed, namely the resonance characteristic of the excitation response showing that the ink in the ink box is empty is generated, so that the ink-jet printer knows that the ink in the ink box is empty, and informs a user to replace the ink box or/and stop printing.
In this embodiment, the circuit used is the circuit described in fig. 5 or fig. 7.
It can be seen from the above embodiments that the method and circuit provided by the present invention can simulate the excitation response characteristic matched with the inkjet printer, and after the inkjet printer detects the excitation response characteristic, the matching is successful, and the continuous printing is controlled without notifying the user to replace the ink cartridge, so that the special ink cartridge provided by the inkjet printer manufacturer is not needed, which brings convenience and cost reduction for the user, and provides fair competition opportunity for other ink cartridge manufacturers.
Furthermore, the method and the circuit provided by the invention do not need to modify the ink box and fix the piezoelectric sensor module. Therefore, the ink box without ink can be recycled, and the pollution to the environment is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (14)
1. A circuit for simulating the excitation response characteristic of an ink-jet printer is characterized by comprising an oscillating circuit, a resistance-capacitance network and a nonlinear module, wherein the oscillating circuit and the nonlinear module are embedded in, connected in parallel or connected in series in the resistance-capacitance network,
the ink-jet printer adds an excitation signal to the circuit, detects the resonance characteristic of the excitation response set by the ink-jet printer obtained by the excitation signal through the oscillation circuit, and detects the charge-discharge characteristic of the excitation response set by the ink-jet printer obtained by the excitation signal through the resistance-capacitance network of the embedded, parallel or serial nonlinear module.
2. The circuit of claim 1, wherein the resistor-capacitor network of the embedded, parallel or series nonlinear module results in an ultra-long time charge-discharge characteristic of an ink jet printer-set excitation response.
3. The circuit of claim 1 or 2, further comprising a positive and negative polarity circuit for detecting the charging and discharging characteristics of the ink jet printer at the positive and negative polarities of the excitation response set by the ink jet printer obtained by the resistance-capacitance network of the embedded, parallel or serial non-linear module and the positive and negative polarity circuit.
4. The circuit of claim 3, wherein one terminal of the forward and reverse polarity circuit is connected to the RC network and the other terminal is connected to another node of the RC network or ground.
5. The circuit of claim 4, wherein the tank circuit is comprised of an inductor (L2) and a capacitor (C4) in parallel when the two terminals of the forward and reverse polarity circuit are connected in a RC network; the resistance-capacitance network embedded into the nonlinear module consists of a capacitor (C5), a resistor (R3), a capacitor (C6), a resistor (R4) and the nonlinear module; the positive and negative polarity circuit consists of a resistor (R2) and a field effect transistor (Q1); wherein,
the capacitor (C5) is connected in series with the oscillating circuit, the positive and negative polarity circuit, the resistor (R3) and the capacitor (C6) are connected in series and then connected in parallel with a circuit obtained by connecting the oscillating circuit and the capacitor (C5) in series, and the resistor (R4) and the nonlinear module are connected in series and then connected in parallel with the capacitor (C6).
6. The circuit of claim 4, wherein said forward and reverse polarity circuit is comprised of a capacitor (C9) and a resistor (R5) in series when one terminal of said forward and reverse polarity circuit is connected to the RC network of the circuit and the other terminal is connected to ground; the resistance-capacitance network consists of a capacitor (C8), a capacitor (C10) and a resistor (R7), wherein the capacitor (C8), the oscillating circuit and the capacitor (C10) are connected in series and then are connected to two excited ends of the circuit, and the resistor (R7) and the nonlinear module are connected in series and then are connected to two excited ends of the circuit;
or the positive and negative polarity circuit is formed by connecting a capacitor (C11) and a resistor (R7) in series; the resistance-capacitance network is composed of a capacitor (C8), a capacitor (C10) and a resistor (R7), the capacitor (C8), the oscillating circuit and the capacitor (C10) are connected in series and then connected with two excited ends of the circuit in parallel, and the resistor (R7) and the nonlinear module are connected in series and then connected with the two excited ends of the circuit.
7. The circuit of claim 3 wherein said positive and negative polarity circuit has three ports, two of which are connected to the RC network of said circuit, and a third of which is connected to ground.
8. The circuit of claim 7, wherein the positive and negative polarity circuit is formed by connecting a capacitor (C9), a resistor (R5), a resistor (R6) and a capacitor (C11) in series, and the resistor (R5) and the capacitor (R6) are grounded; the resistance-capacitance network consists of a capacitor (C8), a capacitor (C10) and a resistor (R7), wherein the capacitor (C8), the oscillating circuit and the capacitor (C10) are connected in series and then are connected to two excited ends of the circuit, and the resistor (R7) and the nonlinear module are connected in series and then are connected to two excited ends of the circuit.
9. The circuit of claim 1 or 2, wherein the oscillator circuit or the circuit is further configured to generate an excitation response indicative of an insufficient amount of ink in the ink tank based on the control signal when receiving the control signal indicative of an insufficient amount of ink in the ink tank from the memory chip, and to feed back the excitation response to the inkjet printer.
10. The circuit of claim 1 or 2, wherein the oscillating circuit is an LC parallel or series circuit capable of generating oscillating signals, a semiconductor integrated block with a resonance function or a singlechip control circuit;
the nonlinear module is composed of a nonlinear device and at least one capacitor.
11. A method of simulating an excitation response characteristic for use in an ink jet printer, the method comprising: the method comprises the following steps of setting a circuit comprising an oscillating circuit, a resistance-capacitance network and a nonlinear module, wherein the oscillating circuit and the nonlinear module are embedded into, connected in parallel or connected in series in the resistance-capacitance network, and the method also comprises the following steps:
the ink-jet printer adds an excitation signal to the circuit, detects the resonance characteristic of the excitation response set by the ink-jet printer obtained by the excitation signal through the oscillation circuit, and detects the charge-discharge characteristic of the excitation response set by the ink-jet printer obtained by the excitation signal through the resistance-capacitance network of the embedded, parallel or serial nonlinear module.
12. The method as claimed in claim 11, wherein the detecting the charging and discharging characteristics of the excitation response set by the inkjet printer obtained by the resistance-capacitance network of the embedded, parallel or serial nonlinear module is an ultra-long charging and discharging characteristic.
13. The method according to claim 11 or 12, wherein the circuit is further provided with a positive and negative polarity circuit, and the detected charge and discharge characteristics of the excitation response set by the ink jet printer are as follows: and the charge-discharge characteristics under the positive and negative polarities of the excitation response set by the ink-jet printer are obtained through the embedded, parallel or serial nonlinear module and the resistance-capacitance network of the positive and negative polarity circuit.
14. The method of claim 11, further comprising:
the circuit receives a control signal which is sent by the memory chip and indicates that the ink residual quantity in the ink box is insufficient, and generates an excitation response which indicates that the ink residual quantity in the ink box is insufficient and feeds the excitation response back to the ink-jet printer according to the control signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008101260227A CN101293428A (en) | 2008-07-01 | 2008-07-01 | Method and circuit for simulation of response characteristic applied to ink jet printer |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008101260227A CN101293428A (en) | 2008-07-01 | 2008-07-01 | Method and circuit for simulation of response characteristic applied to ink jet printer |
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| CN101293428A true CN101293428A (en) | 2008-10-29 |
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| CNA2008101260227A Pending CN101293428A (en) | 2008-07-01 | 2008-07-01 | Method and circuit for simulation of response characteristic applied to ink jet printer |
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| CN101944879A (en) * | 2010-08-13 | 2011-01-12 | 珠海艾派克微电子有限公司 | Exciter response mimic circuit and exciter response simulation method applied to printer |
| CN102139574A (en) * | 2010-12-07 | 2011-08-03 | 深圳市晟碟半导体有限公司 | Ink box for ink-jet printer and control method thereof |
| CN102496681A (en) * | 2011-11-29 | 2012-06-13 | 辉芒微电子（深圳）有限公司 | Analog circuit of piezoelectric transducer |
| CN102843099A (en) * | 2010-08-13 | 2012-12-26 | 珠海艾派克微电子有限公司 | Excitation response simulation circuit applied to printer |
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| CN102941736A (en) * | 2012-06-08 | 2013-02-27 | 珠海艾派克微电子有限公司 | Ink cartridge applied to ink-jet printer, chip on ink cartridge and method for controlling chip |
| CN102941736B (en) * | 2012-06-08 | 2015-04-01 | 珠海艾派克微电子有限公司 | Ink cartridge applied to ink-jet printer, chip on ink cartridge and method for controlling chip |
| CN103395295A (en) * | 2013-07-23 | 2013-11-20 | 杭州旗捷科技有限公司 | Chip of ink box of ink-jet printer |
| CN103395295B (en) * | 2013-07-23 | 2016-01-20 | 杭州旗捷科技有限公司 | The chip of ink-jet printer cartridge |
| WO2020057176A1 (en) * | 2018-09-17 | 2020-03-26 | 珠海艾派克微电子有限公司 | Printing consumable, consumable chip, ink box, ink box transformation method and setting method of differential circuit structure |
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