CN1939732A - Ink-jetting driving circuit for heating circuit - Google Patents
Ink-jetting driving circuit for heating circuit Download PDFInfo
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- CN1939732A CN1939732A CN 200510108986 CN200510108986A CN1939732A CN 1939732 A CN1939732 A CN 1939732A CN 200510108986 CN200510108986 CN 200510108986 CN 200510108986 A CN200510108986 A CN 200510108986A CN 1939732 A CN1939732 A CN 1939732A
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Abstract
An ink-jet drive circuit suitable for the heating chip of ink-jet head and connected with the first, the second and the third inputs and a common terminal for prevent the error printing caused by heater is composed of a heater, a selector and a protecting circuit for eliminating the output voltage of selector due to leakage voltage and/or noise.
Description
Technical field
The present invention relates to a kind of ink-jet driving circuit of heating chip, relate in particular to a kind of ink-jet driving circuit that is applicable to the heating chip of ink gun.
Background technology
Along with personal computer is popularized fast development with the internet, ink-jet printer has become product indispensable in the personal computer equipment at present in recent years.Concerning general user, the ink-jet printer of a basic model just is enough to deal with the demand of various file printouts.As everyone knows, the factor that influences the printing of inkjet printer quality has a lot, the composition of ink for example, ink supply mode of the selection of paper and print cartridge or the like.For pursuing more perfect print quality, relevant developer has devoted considerable time and mental and physical efforts design with supplying structure of ink in print cartridge storage China ink, and simple in structure in the hope of meeting, cost of manufacture is low, requirements such as high black ability of storage and high print quality.
Wherein, control ink gun (printhead) released ink droplet to the structure of ink-jet media is one of the key factor that need consider of design print cartridge.Generally speaking, the mode of ink gun ejection ink droplet mainly contains two kinds of hot bubble type (thermalbubble type) and piezoelectric types (micro piezo type).With the hot bubble type ink jet head is example, and its operating principle is to utilize heating resistor (heater resistor) heating to make it to produce bubble and then ink is discharged, and ink is sprayed onto on the ink-jet media by a plurality of spray orifices.
Please see Figure 1 (a), is the structural representation that tradition is used the ink gun of hot bubble type ejection ink droplet, and as shown in the figure, traditional ink gun 1 mainly is made up of a heating chip 11, a barrier layer 12 and a spray nozzle sheet 13.Heating chip 11 comprises the 110 and one groups of heating resistors (not shown) around ink supply port of ink supply port (ink slot) that are arranged at central authorities, and a plurality of inking chambers 121 of formation in the barrier layer 12, a plurality of spray orifices 131 corresponding to inking chamber 121 are then arranged on the spray nozzle sheet 13, so when heating chip 11 and spray nozzle sheet 13 assemblings, and utilize adhesive agent to stick back (shown in Fig. 1 (b)) on the ink gun load bearing seat 15 of print cartridge body 14 bottoms, the ink that is stored in print cartridge body 14 inside will flow into the ink supply port 110 and the inking chamber 121 of heating chip 11 in regular turn, then utilize heating resistor heating to make it to produce bubble at last and then ink is squeezed, and make it to be sprayed onto on the ink-jet media by the spray orifice on the spray nozzle sheet 13 131.Certainly, in order to adapt to the demand that color inkjet printer has different ink colors, print cartridge can be provided with many group ink guns, is ejected on the ink-jet media with the ink of controlling different colours.
Wherein, heating chip 11 inside are provided with many group ink-jet driving circuits, in order to control the running of pairing heating resistor respectively, see also Fig. 2 (a), it is the ink-jet driving circuit schematic diagram that is used for controlling the heating resistor running in the heating chip, as shown in the figure, it comprises: select transistor (SEL-MOS) 21, electrostatic defending transistor (ESD-MOS) 22, heating resistor (Heater resistor) 23, driving transistors (Driver MOS) 24,25 and three input A (Address) of pull-down-resistor (pull down resistor), P (primitive) and SEL, wherein, select transistor 21 usefulness to select to want to carry out the ink gun of ink-jet action for printer control system, select grid (gate) end of transistor 21 to be connected with input SEL, the selection signal of selecting circuit (not shown) to be transmitted in order to the ink gun that receives printer control system, therefore if all can receiving one, the gate terminal of the selected selection transistor 21 that is connected as the ink gun of inkjet printing all heating resistors 23 that then it comprised selects signal, promptly enable signal (enable signal), as for, select the other end of transistor 21 then to be connected with an input A, the control signal that its driver of ink-jet head (not shown) that receives printer control system is transmitted, expression printer control system will drive heating resistor 23 runnings that are connected with this selection transistor 21.
When the grid of selecting transistor 21 receives the selection signal that printer control system is imported via input SEL, the about 11.6V of Vin voltage, and input A is when also input voltage is the control voltage of 11.6V, select transistor 21 with conducting, and make the voltage of the H node relative be about 10.5V (shown in Fig. 2 (b)) with input SEL, because the voltage of H node is high voltage, therefore can control driving transistors 24 conductings that are connected with heating resistor 23, thus, input P will transmit a voltage to heating resistor 23, make the temperature of heating resistor 23 raise, and the ink heating is made it to produce bubble and then ink is sprayed onto on the ink-jet printing media.
As for, electrostatic defending transistor 22 is arranged at respectively between input A and the earth terminal, and between input P and the earth terminal, mainly prevents static benefit influence selection transistor 21, driving transistors 24 and heating resistor 23 runnings in input A and input P.Pull down resistor 25 then is to be arranged between input A and the earth terminal and between H node and the earth terminal, mainly in order to burning voltage, so that select transistor 21 and driving transistors 24 can stablize running.
Please again referring to Fig. 2 (b), the variation diagram of the corresponding SEL voltage of the voltage of H node when being the circuit operation of Fig. 2 (a), and please cooperate referring to Fig. 2 (c), it is the enlarged diagram of the low-voltage region (0-1.5V) of Fig. 2 (b) SEL signal, can be by finding out among Fig. 2 (c) as long as when selecting the gate terminal of transistor 21 to have undesired little drain voltage or noise to produce, then the H node just has voltage to produce, and the ascending curve of this voltage is very steep, promptly will be easy to make the critical voltage of the voltage of H node above driving transistors 24 as long as select the gate terminal of transistor 21 to have a little abnormal little drain voltage or noise to produce, it is the Vt value, and the phenomenon that triggers driving transistors 24 conductings and then cause heating resistor 23 generation misoperations and unnecessary energy to consume, and then condition of poor is printed in generation, the circuit design that Fig. 2 (a) is disclosed only has at driving transistors 24 and has higher Vt magnitude of voltage, it is bad to avoid specking to print, but improve the Vt magnitude of voltage of driving transistors 24, also cause unwanted power consumption.
Therefore, the conventional circuit structure shown in Fig. 2 (a) has shortcoming what follows:
1. noiseless and drain voltage protection: only do electrostatic defending and voltage stabilizing, when internal circuit generation noise or drain voltage, then can't remove at input A, P.
2. processing procedure is restricted: when the Vt value for reduction driving transistors 24, and when doing higher concentration and mixing, select the gate terminal of transistor 21 that little drain voltage and noise are arranged as long as also can cause simultaneously, then select transistor 21 promptly to have leakage current to form, and cause heating resistor 23 unnecessary malfunction and energy consumption, also cause driving transistors 24 can not adopt the process design of low Vt value relatively.
3. unnecessary power consuming: can't do higher concentration because of driving transistors 24 processing procedures and mix, so when driving transistors 24 conductings, drain electrode end (Drain) is big to the resistance of the relative higher concentration doping of resistance of source terminal (Source), causes the consumption of more inessential power to produce.
4. undesired specking is printed: because of the unshielded circuit design in inside, therefore when noise or drain voltage are arranged, easily make driving transistors 24 produce undesired effect, and then heating resistor 23 is moved, and causing unnecessary specking to occur and energy consumption, the action formation that influences normal specking is printed bad.
Above-mentioned shortcoming all will influence the quality of inkjet printing, remain to be improved, and therefore, how develop a kind of protection circuit that improves the heating chip that is applicable to ink gun of above-mentioned conventional art disappearance, and will be real in pressing for the problem of solution at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of ink-jet driving circuit that is applicable to heating chip, by selecting circuit to connect selection circuit gate terminal that protection circuit set between the end points improves prior art causes heating resistor generation misoperation because of noise and drain voltage shortcoming together, but make the heater normal operation, and then the processing procedure elasticity of lifting heating chip, the advantages such as power consumption reduction of the heating chip of lifting of ink gun print quality and ink gun have noiseless and drain voltage control to solve traditional ink-jet driving circuit, unnecessary power consuming, be restricted on the processing procedure, shortcomings such as undesired specking printing.
For achieving the above object, of the present invention one than broad sense embodiment for a kind of ink-jet driving circuit is provided, it is applicable to a heating chip of an ink gun, and with a first input end, one second input, the 3rd input and connect end points altogether and be connected, print action and unnecessary energy consumption in order to avoid a heater to make a mistake, this ink-jet driving circuit comprises: one selects circuit, it is connected with this first input end and second input, in order in order to adapt to the control signal that this first input end imports and this second input transmitted one selects the triggering of signal and produce an output voltage, to drive the running of this heater; One protection circuit, it is connected in this selection circuit and connects altogether between the end points with this and be connected with exit point and this heater of selecting circuit; Wherein, this protection circuit is for the triggering of this control signal of adapting to this first input end and make this selection circuit and this connect end points altogether to be conducted, in order to when this selection circuit output end point produces a drain voltage and/or noise, eliminate via the output voltage that this protection circuit will select circuit to produce, make a mistake to avoid this output voltage to trigger this heater and print action.
According to conception of the present invention, wherein this selection circuit is one to switch switch, in order to carry out the switch switching for the triggering that adapts to this control signal that this first input end imports and this selections signal that this second input transmitted.
According to conception of the present invention, wherein the change-over switch of this selection circuit is a metal-oxide semiconductor transistor, it comprises a grid, a drain electrode and an one source pole, this grid is connected with this second input, in order to receive this selection signal, this drain electrode is connected with this first input end, and in order to receive this control signal, this source electrode is connected with this protection circuit and this heater.
According to conception of the present invention, wherein this protection circuit is one to switch switch, is conducted in order to make this selection circuit and this connect end points altogether for the triggering of this control signal of adapting to this first input end.
According to conception of the present invention, wherein the change-over switch of this protection circuit is a metal-oxide semiconductor transistor, it comprises a grid, a drain electrode and an one source pole, this grid is connected with this first input end, in order to receive this control signal, this drain electrode is connected with exit point and this heater of this selection circuit, in order to will select circuit to eliminate, make a mistake to avoid this output voltage to trigger this heater and print action and unnecessary energy consumption because of this output voltage that this drain voltage and/or noise produced.
According to conception of the present invention, wherein the first input end of this ink-jet driving circuit connects together and is provided with pull-down-resistor between end points, and the exit point of selecting circuit connects together and is provided with a drop-down resistor between the end points, in order to stablize the voltage of this selection circuit output end and this first input end.
According to conception of the present invention, wherein this heater comprises a heating resistor and a switching switch, this heating resistor is connected with one the 3rd input, this change-over switch is with this selection circuit, this protection circuit, this connects end points altogether and this heating resistor is connected, it is for the triggering of the output voltage that adapts to this selection circuit and make this heating resistor and this connect end points altogether to be connected, so that the voltage that the 3rd input of this heater is transmitted is sent to this heating resistor, the temperature of this heating resistor is raise.
According to conception of the present invention, wherein this ink-jet driving circuit comprises an electrostatic discharge protection circuit, and it is arranged at the 3rd input of this heater and this connects between the end points altogether, is not subjected to electrostatic interference in order to the input voltage that prevents the 3rd input.
According to conception of the present invention, wherein this ink-jet driving circuit comprises an electrostatic discharge protection circuit, and it is arranged at this first input end and this connects between the end points altogether, is not subjected to electrostatic interference in order to the input voltage that prevents this first input end.
According to conception of the present invention, wherein this to connect end points altogether be an earth terminal, with the minimum voltage end points of thinking the ink-jet circuit.
For reaching above-mentioned purpose, the present invention provides a kind of heating chip in addition, and it is applicable to an ink gun structure, and this heating chip comprises: a plurality of heaters; A plurality of ink-jet driving circuits, it controls one and then printing action of these a plurality of heaters respectively, and with a first input end, one second input, the 3rd input and connect end points altogether and be connected, wherein each ink-jet driving circuit comprises: one selects circuit, it is connected with this first input end and second input, in order in order to adapt to the control signal that this first input end imports and this second input transmitted one selects the triggering of signal and produce an output voltage, to drive a running of these a plurality of heaters; One protection circuit, it is connected in this selection circuit and connects altogether between the end points and with an output and this heater of this selection circuit with this and be connected; Wherein, this protection circuit is for the triggering of this control signal of adapting to this first input end and make this selection circuit and this connect end points altogether to be conducted, when the exit point that is used to this selection circuit produces a drain voltage and/or noise, eliminate via the output voltage that this protection circuit will select circuit to produce, make a mistake to avoid this output voltage to trigger one of these a plurality of heaters and print action and unnecessary energy consumption.
Description of drawings
Fig. 1 (a): it is the structural representation that tradition is used the ink gun of hot bubble type ejection ink droplet.
Fig. 1 (b): it is the structural representation that traditional ink gun is assembled in print cartridge.
Fig. 2 (a): it is the ink-jet driving circuit schematic diagram that is used for controlling the heating resistor running in the heating chip.
Fig. 2 (b): the variation diagram of the corresponding SEL voltage of the voltage of H node when it is the circuit operation of Fig. 2 (a).
Fig. 2 (c): it is the enlarged diagram of the low-voltage region of Fig. 2 (b) SEL signal.
Fig. 3: it is the electrical block diagram for the ink-jet driving circuit of preferred embodiment of the present invention.
Fig. 4 (a): the variation diagram of the corresponding SEL voltage of the voltage of H node when it is a circuit operation shown in Figure 3.
Fig. 4 (b): it is the enlarged diagram of the low-voltage region of Fig. 4 (a) SEL signal.
The specific embodiment
Some exemplary embodiments that embody feature of the present invention and advantage will be described in detail in the explanation of back segment.Be understood that the present invention can have various variations on different forms, its neither departing from the scope of the present invention, and explanation wherein and be shown in the usefulness that ought explain in essence, but not in order to restriction the present invention.
Generally speaking, be arranged at the heating chip of ink gun structure inside, it triggers heating resistor respectively according to the control signal that printer control system transmitted and carries out the inkjet printing running, therefore heating chip inside need be provided with many group ink-jet driving circuits and control a plurality of heating resistors respectively, below will propose explanation in the mode that an ink-jet driving circuit is controlled its pairing heating resistor running.
See also Fig. 3, it is for being used for controlling the ink-jet driving circuit schematic diagram of heating resistor running in the heating chip, as shown in the figure, ink-jet driving circuit of the present invention is by selecting circuit 31, protection circuit 32, pull-down-resistor R1, R2 and 331,332 of electrostatic discharge protection circuits to constitute, and ink-jet driving circuit is with first input end A, the second input SEL, the 3rd input P and connect end point signal altogether and be connected.Ink-jet driving circuit of the present invention also can prevent to select action that circuit 31 internal circuits print because of drain voltage and/or interference of noise make heater 34 make a mistake and unnecessary energy consumption by protection circuit 32 except can coming control heater 34 running according to the signal that printer control system (not shown) transmitted.
Wherein, this connects end points altogether is that an earth terminal (ground) 35 and the second input SEL select circuit (not shown) signal to be connected with the ink gun of printer control system, select the selection signal that circuit transmitted in order to receive ink gun, so select signal if the end points that the selection circuit 31 that selected ink gun as inkjet printing (not shown) institute's having heaters 34 that then it comprised is connected is connected with the second input SEL all can receive one in the print cartridge (not shown).And first input end A is connected with driver of ink-jet head (not shown) signal of printer control system, and it produces a control signal and drives and heater 34 runnings of selecting circuit 31 to be connected.
Selecting circuit 31 is switching switches, and be to be preferable example in preferred embodiment of the present invention with a metal-oxide semiconductor transistor (hereinafter to be referred as MOS transistor) 311, MOS transistor 311 comprises a grid (Gate), one drain electrode (Drain) and one source pole (Source), the gate terminal of MOS transistor 311 is connected with the second input SEL, the selection signal that is transmitted in order to the selection circuit that receives printer control system, drain electrode is connected with first input end A, in order to receive the control signal that drive circuit transmitted of printer control system, as for, source terminal then with protection circuit 32, pull-down-resistor R2 and heater 34 connects, so the triggering of the selection signal that transmitted for the control signal that adapts to first input end A and import and the second input SEL of MOS transistor 311 and carry out switch and switch.
In present embodiment, heater 34 switches switch 341 by a heating resistor R3 and to be formed, heating resistor R3 is connected with the 3rd input P, and change-over switch 341 is good with a metal-oxide semiconductor transistor and itself and select circuit 31, protection circuit 32, earth terminal 35 and heating resistor R3 connect, change-over switch 341 conducting for the triggering that adapts to the output voltage of selecting circuit 31 to export the H node to, and then make heating resistor R3 and earth terminal 35 be conducted, so that the voltage that the 3rd input P is transmitted can be sent to heating resistor R3, and the temperature of heating resistor R3 is raise, be sprayed onto on the print media with generation bubble that the ink heating is made and then with ink.
In addition, ink-jet driving circuit of the present invention is provided with pull-down-resistor R1 between first input end A and earth terminal 35, and between H node and earth terminal 35, pull-down-resistor R2 is set, be mainly used to burning voltage, so that select circuit device 31, protection circuit 32 and change-over switch 341 can stablize running.And between input A and earth terminal 35 and input P and the earth terminal 35 the electrostatic discharge protection circuit 331,332 that is provided with respectively, mainly in order to prevent that the influence of static benefit from selecting circuit 31, holding circuit 32 and heater 34 runnings.
When the gate terminal as the MOS transistor 311 of selecting circuit 31 receives the selection signal that the selection circuit of printer control system is imported via the second input SEL, the about 11.6V of Vin voltage, and first input end A is when also input voltage is the control voltage of 11.6V, MOS transistor 311 is with conducting, the H node voltage that this moment, MOS transistor 311 offered change-over switch 341 gate terminal of heater 34 is about 10.2V (shown in Fig. 4 (a)), because the voltage of H node is high voltage, therefore can control change-over switch 341 conductings that are connected with heating resistor R3, thus, the 3rd input P will transmit a voltage to heating resistor R3, make the temperature of heating resistor R3 raise, and the generation bubble that the ink heating is made and then ink is sprayed onto on the print media.
See also Fig. 4 (a) and please cooperate Fig. 4 (b), Fig. 4 (b) is the enlarged diagram of the low-voltage region (0-1.5V) of Fig. 4 (a) SEL signal, can be by finding out among Fig. 4 (b) when the gate terminal of MOS transistor 311 has undesired little drain voltage and/or noise, MOS transistor 311 exports the undesired output voltage of part of H node (as shown in Figure 3) to and can eliminate via MOS transistor 321, to avoid MOS transistor 311 to surpass the critical voltage Vt of heater 34 because of the output voltage that undesired drain voltage and/or noise produced, thus, rise the voltage curve of H node that makes MOS transistor 311 offer change-over switch 341 gate terminal of heater 34 many gently than the curve shown in Fig. 2 (c), therefore the voltage that is sent to change-over switch 341 is difficult for surpassing the critical voltage Vt value of change-over switch 341, make the heating resistor R3 of heater 34 and the phenomenon that misoperation can not take place change-over switch 341, and then avoid the shortcoming of conventional art, and its high potential part (shown in Fig. 4 (a)) also meets the requirement of Fig. 3 ink-jet driving circuit, so but ink-jet driving circuit of the present invention by improving also regular event of the heating resistor R3 of the shortcoming of conventional art and heater 34 inside and change-over switch 341 selecting to be provided with between circuit 31 and the earth terminal 35 protection circuit 32.
In sum, ink-jet driving circuit of the present invention causes the shortcoming of heating resistor generation misoperation because of noise and drain voltage by MOS transistor 311 gate terminal that are arranged at the protection circuit of selecting between circuit 31 and the earth terminal 35 32 and improve the selection circuit 31 of conventional art, but make the heating resistor and the change-over switch normal operation of heater inside, thereby the voltage that can adopt low critical voltage Vt value designs, and then unnecessary power consuming is reduced, promote circuit speed.Not having that the restriction of being mixed on processing procedure simultaneously is relative is so not harsh, the most important thing is that the quality of inkjet printing also will promote to some extent.Therefore, ink-jet driving circuit of the present invention has industrial value, files an application in accordance with the law.The present invention can be appointed by the personage who knows this technology and makes an amendment, but does not break away from the protection of claims.
Claims (11)
1. ink-jet driving circuit, it is a heating chip that is applicable to an ink gun, and with a first input end, one second input, the 3rd input and connect end points altogether and be connected, print action in order to avoid a heater to make a mistake, described ink-jet driving circuit comprises:
One heater;
One selects circuit, be to be connected with the described first input end and second input, in order in order to adapt to the control signal that described first input end imports and described second input transmitted one selects the triggering of signal and produce one first output voltage, to drive the running of described heater;
One protection circuit is connected in described selection circuit and is connected with described connecing altogether between the end points and with the exit point and the described heater of described selection circuit.
2. ink-jet driving circuit as claimed in claim 1, it is characterized in that, described protection circuit is for the triggering of the described control signal of the first input end that adapts to described selection circuit and make described selection circuit and the described end points that connects altogether be conducted, in order to when described selection circuit output end point produces a drain voltage and/or noise, via described protection circuit the output voltage that described selection circuit is produced is eliminated, made a mistake to avoid described output voltage to trigger described heater and print action and unnecessary energy consumption.
3. ink-jet driving circuit as claimed in claim 1, it is characterized in that, described selection circuit is one to switch switch, switches in order to carry out switch for the triggering that adapts to described control signal that described first input end imports and the described selection signal that described second input transmitted.
4. ink-jet driving circuit as claimed in claim 3, it is characterized in that, described change-over switch is a metal-oxide semiconductor transistor, it comprises a grid, a drain electrode and an one source pole, described grid is to be connected with described second input, and in order to receive described selection signal, described drain electrode is to be connected with described first input end, in order to receive described control signal, described source electrode is connected with described protection circuit and described heater.
5. ink-jet driving circuit as claimed in claim 1, it is characterized in that, described protection circuit is one to switch switch, in order to make described selection circuit and the described end points that connects altogether be conducted for the triggering of the described control signal that adapts to described selection circuit first input end.
6. ink-jet driving circuit as claimed in claim 5, it is characterized in that, described change-over switch is a metal-oxide semiconductor transistor, it comprises a grid, one drain electrode and one source pole, described grid is connected with the first input end of described selection circuit, in order to receive described control signal, described drain electrode is connected with the exit point and the described heater of described selection circuit, in order to described selection circuit is eliminated because of the described output voltage that described drain voltage and/or noise produced, make a mistake to avoid described output voltage to trigger described heater and print action and unnecessary energy consumption.
7. ink-jet driving circuit as claimed in claim 6, it is characterized in that, the first input end of described ink-jet driving circuit connects together and is provided with a drop-down resistor between end points, and the exit point of selecting circuit connects together and is provided with a drop-down resistor between the end points, in order to stablize the voltage of described selection circuit output end and described first input end.
8. ink-jet driving circuit as claimed in claim 1, it is characterized in that, described heater comprises a heating resistor and and switches switch, described heating resistor is connected with one the 3rd input, described change-over switch and described selection circuit, described protection circuit, described end points and the described heating resistor of connecing altogether connects, it is for the triggering of described first output voltage that adapts to described selection circuit described heating resistor to be connected with the described end points that connects altogether, so that the voltage that described the 3rd input is transmitted is sent to described heating resistor, the temperature of described heating resistor is raise.
9. ink-jet driving circuit as claimed in claim 8 is characterized in that described ink-jet driving circuit comprises an electrostatic discharge protection circuit, and it is arranged at described the 3rd input and described connecing altogether between the end points, is not subjected to electrostatic interference in order to prevent described the 3rd input.
10. ink-jet driving circuit as claimed in claim 1 is characterized in that described ink-jet driving circuit comprises an electrostatic discharge protection circuit, and it is arranged at described first input end and described connecing altogether between the end points, is not subjected to electrostatic interference in order to prevent described first input end.
11. ink-jet driving circuit as claimed in claim 1 is characterized in that, the described end points that connects altogether is an earth terminal, in order to the minimum voltage end as the ink-jet circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101089865A CN100569519C (en) | 2005-09-29 | 2005-09-29 | A kind of ink-jet driving circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005101089865A CN100569519C (en) | 2005-09-29 | 2005-09-29 | A kind of ink-jet driving circuit |
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| CN1939732A true CN1939732A (en) | 2007-04-04 |
| CN100569519C CN100569519C (en) | 2009-12-16 |
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| CNB2005101089865A Expired - Fee Related CN100569519C (en) | 2005-09-29 | 2005-09-29 | A kind of ink-jet driving circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398219A (en) * | 2012-10-10 | 2016-03-16 | 精工爱普生株式会社 | Liquid Ejecting Apparatus And Liquid Ejecting Method |
| CN110481169A (en) * | 2019-08-30 | 2019-11-22 | 北京亚美科软件有限公司 | Ink-jet printer signal behavior plate and signal selection method |
-
2005
- 2005-09-29 CN CNB2005101089865A patent/CN100569519C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398219A (en) * | 2012-10-10 | 2016-03-16 | 精工爱普生株式会社 | Liquid Ejecting Apparatus And Liquid Ejecting Method |
| CN105398219B (en) * | 2012-10-10 | 2017-10-13 | 精工爱普生株式会社 | Drive the drive circuit of piezoelectric element and drive the driving method of piezoelectric element |
| CN110481169A (en) * | 2019-08-30 | 2019-11-22 | 北京亚美科软件有限公司 | Ink-jet printer signal behavior plate and signal selection method |
| CN110481169B (en) * | 2019-08-30 | 2024-05-07 | 北京亚美科软件有限公司 | Signal selection plate for ink-jet printer and signal selection method |
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|---|---|
| CN100569519C (en) | 2009-12-16 |
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