CN1876377A - Device and method for supplying spray nozzle voltage of ink jet printer - Google Patents
Device and method for supplying spray nozzle voltage of ink jet printer Download PDFInfo
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- CN1876377A CN1876377A CN 200510076400 CN200510076400A CN1876377A CN 1876377 A CN1876377 A CN 1876377A CN 200510076400 CN200510076400 CN 200510076400 CN 200510076400 A CN200510076400 A CN 200510076400A CN 1876377 A CN1876377 A CN 1876377A
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Abstract
The invention relates to a voltage supplier, which comprises a search list, a select module, and an adjustable voltage supplier, wherein said device is used to assist several nozzles of ink-jet printer; said ink-jet printer can supply several print modes, while each print mode is relative to the number of nozzles; the search list stores several groups of control signals relative to each print mode; the select module can receive one command which represents that the user selects one print mode as the final print mode; then the select module, based on said command, selects one group of control relative to said final print mode as the final control signal. The inventive adjustable voltage supplier, based on final control signal, supplies one voltage to the nozzle.
Description
Technical field
The present invention relates to a kind of voltage supply device, and relate to a kind of voltage supply device in order to ink gun voltage that printer is provided.
Background technology
Hot bubble type ink jet printer (thermal inkjet printer) is a kind of very general printer at present.Generally speaking, the black and white ink-jet printer comprises an ink gun (printhead) that black ink is provided, and color inkjet printer then further comprises several ink guns that the ink of basic color is provided.Each black or colored ink gun be each self-contained a plurality of nozzle (nozzle) again usually.Most on the market ink-jet printer all provides multiple different printing model to select for the user at present; Each printing model is separately corresponding to different resolution ratio and print quality.According to different resolution setting, the nozzle quantity that is used when at every turn printing all can change thereupon.That is to say that according to the printing model that the user selects, printer can open or close by the different nozzle of control when each the printing.The tiny ink droplet that each nozzle sprayed just becomes complete literal or figure at the paper upper set.Because each literal and figure have nothing in common with each other, the combination and the nozzle quantity of each nozzle that uses also are unfixed.
The operation principle of hot bubble type ink jet printer provides potential pulse to the heating resistor (heater) in each nozzle, makes this heating resistor produce heat rapidly.Heating resistor in the nozzle can produce minute bubbles in that nozzle is inboard after heating, the ink of nozzle exit end is pushed out spray to paper, forms circular ink dot on paper.After potential pulse finished, heating resistor is cooling thereupon also, made that temperature in the nozzle reduces rapidly, bubble collapse, also made ink be backfilled to the jet expansion inboard once more along black road.
See also Fig. 1.Fig. 1 shows the annexation of each nozzle (as 111,112,113) in voltage source 10 of the prior art and the ink gun 11.Voltage source 10 is in order to provide potential pulse to each nozzle.Each nozzle is each a self-contained heating resistor (as 111A, 112A, 113A) and a switch (as 111B, 112B, 113B) all.
With nozzle 111 is example.Not during conducting, therefore not conducting between heating resistor 111A and the earth terminal, does not have electric current and flows through heating resistor 111A at switch 111B, and the two ends of heating resistor 111A do not have voltage drop yet.Suppose that nozzle 111 is set to the nozzle that will be used in the operation of a certain control ink gun 11, switch 111B will be shut, and makes heating resistor 111A form path by switch 111B and earth terminal.Then, voltage source 10 can provide electric current, forms voltage drop at the two ends of heating resistor 111A.Ink in the nozzle 111 is subjected to the steam bubble of heating resistor 111A heating back generation and pushes, and promptly by the inkjet mouth ejection of nozzle 111, forms ink droplet.
In practical application, the switch in each nozzle may be made up of a sub-switch (as 111C, 112C, 113C) and a metal-oxide semiconductor (MOS) (MOS) assembly (as 111D, 112D, 113D) as shown in Figure 2.When group switch 111C was shut, the grid (Gate) of MOS assembly 111D was connected with voltage source 10, made MOS assembly 111D enter conducting state, and by this, heating resistor 111A can form path by MOS assembly 111D and earth terminal.
Heating resistor, metal oxide semiconductor component in each ink gun, or even be connected in winding displacement and relevant connection circuit between voltage source 10 and each ink gun, all can be to voltage source 10 formation load (loading) effects.As known to persons skilled in the art, the output impedance of an ideal voltage source is zero, no matter the therefore size of load value, ideal voltage source can both provide fixing magnitude of voltage output.Yet in actual state, the output impedance of the impedance of various connection lines and voltage source 10 is neither may to be zero; When being connected to different loads, the magnitude of voltage that voltage source 10 is provided is just slightly variant.
As shown in Figure 1, if nozzle 111 is used simultaneously with nozzle 112, heating resistor 111A is in parallel with heating resistor 112A; Compared to the situation of having only nozzle 111 to be used separately, the equivalent load that after heating resistor 111A and the heating resistor 112A parallel connection voltage source 10 is formed has only the former half (resistance value of supposing heating resistor 111A and heating resistor 112A is identical).Because each literal and figure have nothing in common with each other, the quantity of the nozzle that at every turn is used is unfixed.When the quantity of the nozzle that at every turn is used changed to some extent, it was also different to form the quantity of heating resistor of loads to voltage source 10.Therefore, the voltage drops that at every turn form at the heating resistor two ends of voltage source 10 may all can be subjected to the influence of load value and variant.
Existing ink-jet printer is to use fixing driving voltage that the required driving energy of ink gun when printing is provided mostly.If voltage source 10 provides changeless magnitude of voltage, be subjected to that load impedance changes and the influence of various line impedances, the resulting driving voltage of each heating resistor just can deficiency or too big, make ink droplet in each nozzle to spray or ink droplet excessive.Above-mentioned phenomenon all can have a strong impact on the print quality of printer.
See also Fig. 3.Fig. 3 shows the prior art that another kind has two groups of voltage sources.Voltage source 20A is in order to provide voltage to each heating resistor; Voltage source 20B is in order to optionally to provide the grid of voltage to each metal oxide semiconductor component.Fig. 3 is that with the main difference of Fig. 2 each heating resistor is different with the needed magnitude of voltage of each metal oxide semiconductor component, therefore needs two groups of voltage sources that different magnitudes of voltage is provided.Prior art as shown in Figure 3 equally also can meet with the problem of aforesaid variation in voltage.
Summary of the invention
For addressing the above problem, the invention provides a kind of device and method in order to spray nozzle voltage that ink-jet printer is provided.Device and method according to the present invention is the user to be printed the resolution ratio of contribution and the impedance operator of each nozzle is included consideration in.Therefore, the present invention can be according to the quantity of the nozzle that will be used, and the voltage change that impedance caused of the impedance of compensating jet and various connection lines provides each nozzle stable and correct magnitude of voltage by this in advance.
Device and method according to the present invention is contained in a ink gun in the ink-jet printer in order to cooperation.This ink gun comprises a plurality of nozzles.This inkjet printing function provides a plurality of printing models; Each printing model is separately corresponding to the quantity of other nozzle.
First preferred embodiment according to the present invention is a voltage supply device.This voltage supply device comprises a look-up table (look-up table), and selects a module and an adjustable Voltage Supply Device.This look-up table is in order to store the control signal of many groups corresponding to these a plurality of printing models.This selection module is in order to receive an instruction; This instruction expression one user is by selecting a printing model as a final printing model in the described printing model.This selects module and according to this instruction, is stored in control signal in this look-up table by these many groups and selects one group of control signal corresponding to this final printing model as one group of final control signal.This adjustable Voltage Supply Device provides at least one voltage to these a plurality of nozzles in order to organize final control signal according to this.
Second preferred embodiment according to the present invention is a kind of method of control one adjustable Voltage Supply Device.One look-up table provides in advance and organizes with described printing model relevant control signals in order to store more.This method at first receives an instruction; This instruction expression one user is by selecting a printing model as a final printing model in the described printing model.This method is instructed according to this, is stored in control signal in this look-up table by these many groups and selects one group of control signal corresponding to this final printing model as a final control signal.This method is then adjusted this adjustable Voltage Supply Device, make this adjustable Voltage Supply Device provide at least one correspondence in this voltage of organizing final control signal to these a plurality of nozzles.
The advantages and spirit of the present invention can be by being further understood below in conjunction with the accompanying drawing detailed description of the present invention.
Description of drawings
Fig. 1 shows the annexation of voltage source of the prior art and each nozzle.
Fig. 2 further shows the circuit diagram of the nozzle among Fig. 1.
Fig. 3 shows the annexation of another voltage source of the prior art and each nozzle.
Fig. 4 shows the structure chart according to the voltage supply device of first preferred embodiment of the present invention.
Fig. 5 shows the structure chart according to the voltage supply device of second preferred embodiment of the present invention.
Fig. 6 shows the flow chart according to the method for the 3rd preferred embodiment of the present invention.
The reference numeral explanation
10: voltage source 11: ink gun
111,112,113: nozzle 111A, 112A, 113A: heating resistor
111B, 112B, 113B: switch 111C, 112C, 113C: sub-switch
111D, 112D, 113D:MOS assembly
20A: the first voltage source 20B: second voltage source
30: voltage supply device 30A: adjustable Voltage Supply Device
30B: select module 30C: look-up table
31: instruction
40: voltage supply device 40A: adjustable Voltage Supply Device
40B: select module 40C: look-up table
41: instruct 42: the first winding displacements
43: the second winding displacement S61～S63: steps flow chart
The specific embodiment
A main purpose of the present invention is to provide a kind of device and method in order to ink gun voltage that ink-jet printer is provided.Device and method according to the present invention is contained in a ink gun in the ink-jet printer in order to cooperation.This ink gun comprises a plurality of nozzles.This inkjet printing function provides a plurality of printing models; Each printing model is separately corresponding to the quantity of other nozzle.
First preferred embodiment according to the present invention is a voltage supply device.See also Fig. 4.Fig. 4 shows the structure chart according to the voltage supply device of first preferred embodiment of the present invention.Voltage supply device 30 comprises an adjustable Voltage Supply Device 30A, and selects a module 30B and a look-up table 30C.Identical with Fig. 2 is that each ink gun among Fig. 4 is each self-contained heating resistor, a metal oxide semiconductor component and a switch also.
The present invention calculates in advance under the different situation of the quantity of nozzle, and all nozzles and line impedance can form great load to voltage supply device 30.Then, further calculate under the situation of various different loads values, how many voltage supply device 30 inside should be done and adjust, and just can keep desirable voltage output value again.Look-up table 30C promptly when storing corresponding to various different loads value, many groups control signal of control voltage supply device 30.
In practical application, adjustable Voltage Supply Device 30A is connected with described ink gun by a winding displacement.General winding displacement all has a series connection impedance, and this series impedance also can cause voltage loss.In addition, can be subjected to the dead resistance on the circuit, the influence of electric capacity because voltage supply device 30 is sent to voltage in the process of each ink gun, the time that each ink gun receives enough voltage (or electric current) can be slightly later to the time that voltage supply device 30 is sent voltage (or electric current).In order in time to supply the required big electric current of moment that each ink gun is being opened.According to the present invention, also can store among the look-up table 30C with circuit on the relevent information of response delay time of assembly, required voltage or size of current when printing to adjust ahead of time in good time is so that replenish the required driving energy of ink gun.That is to say that these a plurality of control signals that are stored in this look-up table also may be relevant with the series impedance of this winding displacement.
Select module 30B in order to receive an instruction 31; Instruction 31 expression one users are by selecting a printing model as a final printing model in the described printing model.Select module 30B and, select one group of control signal as one group of final control signal by the control signal that these many groups are stored among the look-up table 30C according to instruction 31.In practical application, look-up table 30C can be integrated into a control module with selecting module 30B.Adjustable Voltage Supply Device 30A provides at least one magnitude of voltage to these a plurality of nozzles in order to organize final control signal according to this.
Because the first above-mentioned preferred embodiment is printed the resolution ratio of contribution with the user and the impedance operator of ink gun is included consideration in.Therefore, the present invention can be pursuant to the quantity with driven nozzle, compensates the voltage change that causes because of various impedances in advance, provides each nozzle stable and correct magnitude of voltage by this.
See also Fig. 5.Fig. 5 shows the structure chart according to the voltage supply device of second preferred embodiment of the present invention.Identical according to the operation principle of the voltage supply device 40 of second preferred embodiment of the present invention with voltage supply device 30 among Fig. 4.In present embodiment, each heating resistor is different with the needed magnitude of voltage of each metal oxide semiconductor component, so voltage supply device 40 provides one first voltage and one second voltage.This first voltage offers the heating resistor of each nozzle by winding displacement 42; This second voltage offers the switch of each nozzle by winding displacement 43.
The 3rd preferred embodiment according to the present invention is a kind of method of control one adjustable Voltage Supply Device.This adjustable Voltage Supply Device is contained in a ink gun in the ink-jet printer in order to cooperation.This ink gun comprises a plurality of nozzles.This inkjet printing function provides a plurality of printing models; Each printing model is separately corresponding to the quantity of other nozzle.One look-up table provides in advance and organizes with described printing model relevant control signals in order to store more.See also Fig. 6.Fig. 6 shows the flow chart according to the method for the 3rd preferred embodiment of the present invention.This method at first receives an instruction at step S61, and this instruction expression one user is by selecting a printing model as a final printing model in the described printing model.Step S62 instructs according to this, is stored in control signal in this look-up table by these many groups and selects one group of control signal corresponding to this final printing model as a final control signal.Step S63 then adjusts this adjustable Voltage Supply Device, make this adjustable Voltage Supply Device provide at least one correspondence in this voltage of organizing final control signal to these a plurality of nozzles.
By the above detailed description of preferred embodiments, be to wish to know more to describe feature of the present invention and spirit, and be not to come category of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain in the category that is arranged in claim of the present invention of various changes and tool equality.
Claims (9)
1. voltage supply device, this voltage supply device is contained in a ink gun in the ink-jet printer in order to cooperation, this ink gun comprises a plurality of nozzles, this inkjet printing function provides a plurality of printing models, corresponding to the quantity of other nozzle, this voltage supply device comprises each printing model separately:
One look-up table, this look-up table is in order to store the control signal of many groups corresponding to these a plurality of printing models;
One selects module, this selection module is in order to receive an instruction, this instruction expression one user is by selecting a printing model as a final printing model in the described printing model, this selects module and according to this instruction, is stored in control signal in this look-up table by these many groups and selects one group of control signal corresponding to this final printing model as one group of final control signal; And
One adjustable Voltage Supply Device, this adjustable Voltage Supply Device provides at least one voltage to these a plurality of nozzles in order to organize final control signal according to this.
2. voltage supply device as claimed in claim 1, wherein this look-up table and this selection are module integrated is a control module.
3. voltage supply device as claimed in claim 1, each nozzle wherein comprises a heating resistor and a switch, this heating resistor and this switch have an impedance respectively, and should many group control signals relevant with the impedance of the impedance of this heating resistor and this switch.
4. voltage supply device as claimed in claim 3, wherein this adjustable Voltage Supply Device is connected with this ink gun by a winding displacement, this winding displacement has a series connection impedance, and be stored in this look-up table should many group control signals also the series impedance with this winding displacement is relevant.
5. voltage supply device as claimed in claim 3, wherein comprise one first voltage and one second voltage at least one voltage that provides by this adjustable Voltage Supply Device, this first voltage offers the heating resistor of each nozzle, and this second voltage offers the switch of each nozzle.
One kind control one adjustable Voltage Supply Device method, this adjustable Voltage Supply Device is contained in a ink gun in the ink-jet printer in order to cooperation, this ink gun comprises a plurality of nozzles, this inkjet printing function provides a plurality of printing models, each printing model is separately corresponding to the quantity of other nozzle, one look-up table provides in advance and in order to store many groups control signal relevant with described printing model, this method comprises the following step:
Receive an instruction, this instruction expression one user is by selecting a printing model as a final printing model in the described printing model;
According to this instruction, be stored in control signal in this look-up table by these many groups and select one group of control signal corresponding to this final printing model as a final control signal; And
Adjust this adjustable Voltage Supply Device, make this adjustable Voltage Supply Device provide at least one correspondence in this voltage of organizing final control signal to these a plurality of nozzles.
7. method as claimed in claim 6, each nozzle wherein comprises a heating resistor and a switch, and this heating resistor and this switch have an impedance respectively, and should many group control signals relevant with the impedance of the impedance of this heating resistor and this switch.
8. method as claimed in claim 7, wherein this adjustable Voltage Supply Device is connected with this ink gun by a winding displacement, this winding displacement has a series connection impedance, be stored in this look-up table should many group control signals also the series impedance with this winding displacement is relevant.
9. method as claimed in claim 7 wherein comprises one first voltage and one second voltage at least one voltage that is provided by this adjustable Voltage Supply Device, and this first voltage offers the heating resistor of each nozzle, and this second voltage offers the switch of each nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510076400 CN1876377A (en) | 2005-06-07 | 2005-06-07 | Device and method for supplying spray nozzle voltage of ink jet printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510076400 CN1876377A (en) | 2005-06-07 | 2005-06-07 | Device and method for supplying spray nozzle voltage of ink jet printer |
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| Publication Number | Publication Date |
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| CN1876377A true CN1876377A (en) | 2006-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200510076400 Pending CN1876377A (en) | 2005-06-07 | 2005-06-07 | Device and method for supplying spray nozzle voltage of ink jet printer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241198A (en) * | 2010-05-12 | 2011-11-16 | 北京美科艺数码科技发展有限公司 | Spray head control plate and spray head driving voltage control method |
| CN107618263A (en) * | 2016-07-14 | 2018-01-23 | 佳能株式会社 | Semiconductor devices, liquid discharging head, liquid discharging head box and printing equipment |
| CN110471350A (en) * | 2019-08-23 | 2019-11-19 | 森大（深圳）技术有限公司 | Spray head parameter configuration circuit, method, apparatus and storage medium |
-
2005
- 2005-06-07 CN CN 200510076400 patent/CN1876377A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241198A (en) * | 2010-05-12 | 2011-11-16 | 北京美科艺数码科技发展有限公司 | Spray head control plate and spray head driving voltage control method |
| CN102241198B (en) * | 2010-05-12 | 2013-12-11 | 北京美科艺数码科技发展有限公司 | Spray head control plate and spray head driving voltage control method |
| CN107618263A (en) * | 2016-07-14 | 2018-01-23 | 佳能株式会社 | Semiconductor devices, liquid discharging head, liquid discharging head box and printing equipment |
| US10259216B2 (en) | 2016-07-14 | 2019-04-16 | Canon Kabushiki Kaisha | Semiconductor device, liquid discharge head, liquid discharge head cartridge, and printing apparatus |
| CN107618263B (en) * | 2016-07-14 | 2019-09-24 | 佳能株式会社 | Semiconductor devices, liquid discharging head, liquid discharging head box and printing equipment |
| CN110471350A (en) * | 2019-08-23 | 2019-11-19 | 森大（深圳）技术有限公司 | Spray head parameter configuration circuit, method, apparatus and storage medium |
| CN110471350B (en) * | 2019-08-23 | 2022-06-17 | 森大（深圳）技术有限公司 | Nozzle parameter configuration circuit, method and device and storage medium |
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