CN100503247C - Ink jet print head controller and ink jet printer - Google Patents
Ink jet print head controller and ink jet printer Download PDFInfo
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- CN100503247C CN100503247C CNB2004100424448A CN200410042444A CN100503247C CN 100503247 C CN100503247 C CN 100503247C CN B2004100424448 A CNB2004100424448 A CN B2004100424448A CN 200410042444 A CN200410042444 A CN 200410042444A CN 100503247 C CN100503247 C CN 100503247C
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Abstract
This invention relates to an ink-jet printing head controller and an ink-jet printer. The printer comprises ink-jet printing head driving unit and cartridge, wherein the cartridge comprises the ink-jet printing head controller. The controller is a cushion circuit constituted with several inverters cascaded together, when receiving the selective signal transmitted from the driving unit, it output the cushion signal to control the jet condition, and then decides whether emit ink or not. Meanwhile, the ink-jet printer can use the same signals to control the movement of multi-group ink-jet printing head, which can decline the complex of the circuit.
Description
Technical field
The present invention relates to a kind of ink-jet printing head controller that is used for ink-jet printer, particularly relate to a kind of ink-jet printing head controller and ink-jet printer (PRINTHEAD CONTROLLER AND INK JETPRINTER).
Background technology
Computer almost is everyone instrument that can touch of modern society, generally speaking, the mode that the data after the Computer Processing will be shown, except on display, manifesting, also has other many mode, as printer is exactly one of normal a kind of output equipment that uses, and it can be with printouts such as literal, data, figures on paper.
The kind of current printer roughly can be divided three classes, be respectively three kinds of line dot matrx, ink-jet printer and laser printers, the advantage of these three kinds of printers is not quite similar, so general user can choose dissimilar printers according to the difference of purposes.
With ink-jet printer, the mode of its work is that the ink with one or more different colours is contained in the different print cartridges, by ink nozzle with minimum particles of ink spray printing on paper, form literal, lines or picture, the ink-jet printer of some phase chip level, the print cartridge that also can add pink and powderblue to produce more polychrome rank, prints more abundant colors.
Seeing also shown in Figure 1ly, is United States Patent (USP) numbering US6,299,292 inkjet printing drive circuit.As shown in FIG., it has comprised 16 groups ink-jet printing head matrix 105, and has comprised 13 heating resistor H in each group ink-jet printing head matrix 105.The working method of this drive circuit is by behind decoder 109 receiving printing orders, sends the address decoding signal of ink-jet printing head according to print command, and the heating resistor H at particular address heats with decision, allows ink be sprayed by nozzle after heating.
Wherein, decoder 109 can be sent ink-jet printing head matrix address signal AD1～AD16, and these two kinds of address signals of heating resistor address signal A1～A13, ink-jet printing head matrix address signal AD1～AD16 is that decision drives specific ink-jet printing head matrix 105, and heating resistor address signal A1～A13 is specific heating resistor H in the decision driving ink-jet printing head matrix 105.First termination of each heating resistor H is received voltage signal V, whether second end then controls its conducting by two switches, these two switches are made up of field- effect transistor 101 and 103 respectively, the gate terminal of field-effect transistor 103 receives ink-jet matrix address signal, source terminal (when field-effect transistor is the CMOS field-effect transistor) receives the heating resistor address signal, when the source terminal of field-effect transistor 103 with the address signal activation simultaneously of gate pole end the time, its drain electrode end (when field-effect transistor is the CMOS field-effect transistor) can produce current signal and be sent to a gate terminal of imitating crystal 101, the source electrode of field-effect transistor 101-drain electrode end meeting conducting at this moment because receiving current signal, therefore heating resistor H also can begin to heat, and prepares the emission ink.
Seeing also shown in Figure 2ly, is to be United States Patent (USP) numbering US5,867,183 inkjet printing drive circuit.As shown in FIG., it has comprised ink-jet printing head driver element 201, and 211,213 liang of parts of ink-jet printing head ink output unit.In ink-jet printing head driver element 201, comprise ink-jet printing head drive circuit 203 and ink-jet printing head and selected circuit 205, the mode of operation of this inkjet printing drive circuit, be by one group of control bus signal 207 of ink-jet printing head drive circuit 203 outputs, and select circuit 205 outputs one group selection bus signal 209 by ink-jet printing head, by these two groups of bus signals control in the ink-jet printer the nozzle activation whether.
Ink-jet printing head ink output unit 211 has comprised enable circuit 215, nozzle radiating circuit 225～231, and nozzle 233, wherein enable circuit is made up of a plurality of field-effect transistor, in this invention, be by field-effect transistor 217,219,221,223 4 form, the drain electrode end of each field-effect transistor can receive pairing control signal in the control bus signal 207, and gate terminal can receive and selects in the bus signal 209 institute's correspondence independently to select signal, when the drain electrode end of same field-effect transistor and gate pole end are enabled simultaneously, its source terminal (output) can produce a current signal, this current signal can drive its nozzle radiating circuit that couples, couple nozzle radiating circuit 225 as field-effect transistor 217, and field-effect transistor 219 couples nozzle radiating circuit 227, remove to drive nozzle 233 by the nozzle radiating circuit again, with the emission ink.And the operating principle of another group ink-jet printing head ink output unit 213 is then identical with aforesaid ink-jet printing head ink output unit 211.
The inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of ink-jet printing head controller and ink-jet printer of new structure, can improve general existing ink-jet printing head controller and ink-jet printer, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, improve the defective that existing ink injection print-head control circuit exists, and provide a kind of ink injection print-head control circuit of new structure, technical problem to be solved is to make it can utilize one or more control signal to control the activation situation of the nozzle of ink-jet printing head, whether the emission of decision ink, thereby be suitable for practicality more, and have the value on the industry.
Another object of the present invention is to, improve the defective that existing ink-jet printer exists, and provide a kind of ink-jet printer of new structure, technical problem to be solved is to make it can utilize identical control signal to drive the ink injection print-head control circuit of each print cartridge in the printer, whether the emission of decision ink, thereby be suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of ink-jet printing head controller according to the present invention's proposition, be disposed in the ink-jet printing head, and this ink-jet printing head is one of them of a plurality of ink-jet printing heads of a printer, it comprises: a buffer circuit, select signal in order to receive an address signal and, this selection signal is one of them from the seal head selection a plurality of selection signals that circuit provided in the seal driver element, in order to this ink-jet printing head of activation optionally, this buffer circuit is selected signal and this address signal according to this, exports a corresponding buffering signal; And an ink-jet radiating circuit, in order to receiving this buffering signal from this buffer circuit, and according to this buffering signal decision emission ink whether,
Wherein a voltage quasi position of this address signal and this selection signal is in accurate position of a logic high voltage or the accurate position of a logic low-voltage,
And when this address signal and this were selected signal in the accurate position of this logic high voltage, this buffering signal was accurate an of logic high voltage, with this ink-jet radiating circuit of activation optionally.
The buffering signal of aforementioned buffer circuit output is as the switch signal.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid ink-jet printing head controller, wherein said address signal are the task driven voltage of this buffer circuit.
Aforesaid ink-jet printing head controller, wherein said buffer circuit are to be composed in series by at least the first phase inverter and second phase inverter, and wherein this first phase inverter receives this selection signal, and this first phase inverter all receives this identical address signal with this second phase inverter.
Aforesaid ink-jet printing head controller, wherein said phase inverter is made up of field-effect transistor.
Aforesaid ink-jet printing head controller, wherein said buffer circuit comprises: one first resistance, first end of this first resistance is in order to receive this address signal; One first field-effect transistor, first end of this first field-effect transistor couples second end of this first resistance, and exports an anti-phase signal, and second end is in order to receive this selection signal, and the 3rd end is connected to ground; One second resistance, first end of this second resistance is in order to receive this address signal; And one second field-effect transistor, first end of this second field-effect transistor couples second end of this second resistance, and exports this buffering signal, and second end is in order to receive this anti-phase signal, and the 3rd end is connected to ground.
Aforesaid ink-jet printing head controller, the resistance value of wherein said first resistance and this second resistance is to 500k ohm by 0.5k ohm.
Aforesaid ink-jet printing head controller, the optimum resistance value of wherein said first resistance and this second resistance is to 80k ohm by 20k ohm.
Aforesaid ink-jet printing head controller, wherein said buffer circuit comprises: one first resistance, first end of this first resistance is in order to receive this address signal; One first field-effect transistor, first end of this first field-effect transistor couples second end of this first resistance, and exports an anti-phase signal, and second end is in order to receive this selection signal, and the 3rd end is coupled to ground; One second field-effect transistor, first end of this second field-effect transistor is in order to receive this address signal, and second end is coupled to first end of this second field-effect transistor, and the 3rd end is exported this buffering signal; And one the 3rd field-effect transistor, first end of the 3rd field-effect transistor couples the 3rd end of this second field-effect transistor, and second end is in order to receive this anti-phase signal, and the 3rd end is coupled to ground.
Aforesaid ink-jet printing head controller, the resistance value of wherein said first resistance are to 500k ohm by 0.5k ohm.
Aforesaid ink-jet printing head controller, the optimum resistance value of wherein said first resistance are to 80k ohm by 20k ohm.
Aforesaid ink-jet printing head controller, wherein said buffer circuit comprises: one first resistance, first end of this first resistance is in order to receive this address signal; One first field-effect transistor, first end of this first field-effect transistor couples second end of this first resistance, and exports an anti-phase signal, and second end is in order to receive this selection signal, and the 3rd end is connected to ground; One second field-effect transistor, first end of this second field-effect transistor is in order to receive this address signal, and the 3rd end is exported this buffering signal; One the 3rd field-effect transistor, first end of the 3rd field-effect transistor couple first end and second end of this second field-effect transistor, and second end and the 3rd end couple the 3rd end of this second field-effect transistor simultaneously; And one the 4th field-effect transistor, first end of the 4th field-effect transistor couples the 3rd end of this transistor seconds, and second end is in order to receive this anti-phase signal, and the 3rd end is coupled to ground.
Aforesaid ink-jet printing head controller, the resistance value of wherein said first resistance are to 500k ohm by 0.5k ohm.
Aforesaid ink-jet printing head controller, the optimum resistance value of wherein said first resistance are to 80k ohm by 20k ohm.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.A kind of ink-jet printer according to the present invention's proposition, it comprises: an ink-jet printing head driver element, it selects circuit to form by an ink-jet printing head drive circuit and an ink-jet printing head, and this ink-jet printing head drive circuit is exported a plurality of address signals, and this ink-jet printing head selects circuit to export a plurality of selection signals; And organize the ink-jet printing head control module more, each described ink-jet printing head control module receives corresponding described address signal and corresponding described selection signal respectively, in order to control the mentioned nozzle area activation situation in the described ink-jet printing head control module, whether decision emission ink, wherein each described ink-jet printing head control module comprises: organize buffer circuit more, each described buffer circuit is selected signal in order to one of them of one of them address signal of receiving described a plurality of address signals and described a plurality of selection signals, and each described buffer circuit is exported one according to this selections signal that is received and this address signal and cushioned signal; Many group ink-jet radiating circuits, corresponding being somebody's turn to do of each described ink-jet radiating circuit reception cushioned signal, and whether launches ink according to this buffering signal decision; And organize nozzle more, the corresponding described many group ink-jet radiating circuits of each described nozzle one of them, be responsible for the emission ink.
The buffering signal of aforementioned buffer circuit output is as the switch signal.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid ink-jet printer, wherein said address signal are the task driven voltage of this buffer circuit.
Aforesaid ink-jet printer, wherein said buffer circuit are to be composed in series by many groups phase inverter.
Aforesaid ink-jet printer, wherein said phase inverter is made up of field-effect transistor.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, in order to reach aforementioned goal of the invention, major technique of the present invention thes contents are as follows:
The present invention proposes a kind of ink-jet printing head controller and ink-jet printer, it comprises buffer circuit and ink-jet radiating circuit, wherein buffer circuit is in order to receiver address signal and selection signal, and this buffer circuit is exported corresponding buffering signal according to selecting signal and address signal; The ink-jet radiating circuit is in order to receive and whether to determine the emission ink according to the buffering signal.
In preferred embodiments of the present invention, wherein address signal is the task driven voltage of buffer circuit, and buffer circuit is to be composed in series by phase inverter, and this reverser for example is to be made of field-effect transistor.
In a preferred embodiments of the present invention, this buffer circuit comprises first resistance, second resistance, the 3rd resistance, the 4th resistance, first field-effect transistor and second field-effect transistor, and wherein first end of first resistance is in order to the receiver address signal; And first end of first field-effect transistor couples second end of first resistance, and exports anti-phase signal, and second end is selected signal in order to receive, and the 3rd end is connected to ground; First end of second resistance is in order to the receiver address signal; Its first end of second field-effect transistor couples second end of second resistance, and output buffering signal, and second end is in order to receive anti-phase signal, and the 3rd end is connected to ground; First end of the 3rd resistance couples second end of first field-effect transistor, and second end is coupled to ground; First end of the 4th resistance is in order to the receiver address signal, and second end is coupled to ground.
The present invention proposes a kind of ink-jet printer in addition, it comprises the ink-jet printing head driver element, wherein the ink-jet printing head driver element selects circuit to form by ink-jet printing head drive circuit and ink-jet printing head, the ink-jet printing head drive circuit is exported a plurality of address signals, and ink-jet printing head selects circuit to export a plurality of selection signals; The ink-jet printing head module that is installed on this ink-jet printer has many group ink-jet printing head control modules, should receive corresponding address signal respectively and select signal by each ink-jet printing head control module of organizing in the ink-jet printing head control modules more, in order to control the pairing heating resistor of nozzle (heater) in these ink-jet printing head control modules or the activation situation of converter (transducer), whether decision emission ink.
In preferred embodiments of the present invention, the ink-jet printing head control module comprises many group buffer circuits, organizes the ink-jet radiating circuit more and organize nozzle more, wherein each group buffer circuit in order to receive the multiple sets of address signal and select signal one of them, and each buffer circuit is exported corresponding buffering signal according to the selection signal and the address signal that are received; Whether each group ink-jet radiating circuit can determine emission ink according to this buffering signal after receiving corresponding buffering signal; And each group pairing heating resistor of nozzle (heater) or converter (transducer) are electrically coupled to corresponding ink-jet radiating circuit, are responsible for pressurization or vaporization (vaporize) ink, with the emission ink.
In sum, ink-jet printing head controller proposed by the invention, it can utilize a plurality of phase inverters of serial connection to form buffer circuit, receives the activation situation that one or more control signal is responsible for the nozzle of control ink-jet printing head, and whether the emission of decision ink to be.
Via as can be known above-mentioned, the invention relates to a kind of ink-jet printer, it comprises ink-jet printing head driver element and print cartridge, wherein print cartridge comprises the ink-jet printing head controller.This ink-jet printing head controller is that a plurality of phase inverters of serial connection are formed buffer circuit, after receiving the selection signal and address signal that is transmitted by the ink-jet printing head driver element, output buffering signal is with the activation situation of the nozzle of control ink-jet printing head, and whether the emission of decision ink.
By technique scheme, ink-jet printing head controller of the present invention and ink-jet printer have following advantage at least:
The present invention proposes a kind of ink-jet printing head controller, it can utilize a plurality of phase inverters of serial connection to form buffer circuit, receive one or more control signal and be responsible for the activation situation of the nozzle of control ink-jet printing head, whether the emission of decision ink, thereby be suitable for practicality more; This ink-jet printer can use identical signal to control the action of many group ink-jet printing heads simultaneously, with the complexity of reduction circuit, thereby is suitable for practicality more.
In sum, the ink injection print-head control circuit of special construction of the present invention, it can utilize one or more control signal to control the activation situation of the nozzle of ink-jet printing head, and whether the emission of decision ink to be.Special construction ink-jet printer of the present invention, it can utilize identical control signal to drive the ink injection print-head control circuit of each print cartridge in the printer, and whether the emission of decision ink to be.It has above-mentioned many advantages and practical value, and in like product, do not see have similar structural design to publish or use and really genus innovation, no matter it all has bigger improvement on the structure of product or function, have large improvement technically, and produced handy and practical effect, and more existing ink-jet printing head controller and ink-jet printer have the multinomial effect of enhancement, thereby be suitable for practicality more, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is a kind of circuit diagram that has known inkjet printing drive circuit now.
Fig. 2 is the another kind of circuit diagram that has known inkjet printing drive circuit now.
Fig. 3 is the circuit diagram of the ink-jet printing head controller of a preferred embodiment of the present invention.
Fig. 4 is the circuit diagram of the buffer circuit of a preferred embodiment of the present invention.
Fig. 5 is the circuit diagram of the buffer circuit of a preferred embodiment of the present invention.
Fig. 6 is the circuit diagram of the buffer circuit of a preferred embodiment of the present invention.
Fig. 7 is the circuit diagram of the buffer circuit of a preferred embodiment of the present invention.
Fig. 8 is the circuit box schematic diagram of the ink-jet printer of a preferred embodiment of the present invention.
Fig. 9 is the circuit box schematic diagram of the another kind of ink-jet printer of a preferred embodiment of the present invention.
101,103,217～223,309,311, F1～F14: field-effect transistor
105: ink-jet printing head matrix 109: decoder
201,801: ink-jet printing head driver element 203,803: ink-jet printing head drive circuit
205,805: ink-jet printing head is selected circuit 207: the control bus signal
209: select bus signal 211: ink-jet printing head ink output unit
213: ink-jet printing head ink output unit 215: enable circuit
225～231: nozzle radiating circuit 233,901: nozzle
301: buffer circuit 303: the ink-jet radiating circuit
305,307: phase inverter 305A～305D: phase inverter
305A～307D: phase inverter 807: black print cartridge ink injection print-head control circuit
809,817: buffer circuit group 811,819: ink-jet radiating circuit group
813,821: nozzle sets 815: the colour ink box ink injection print-head control circuit
823,825,825 ': transmission line 317: transmission line
827: ink-jet printing head module H: heating resistor
V1, V2: voltage signal AD1～AD16: ink-jet printing head matrix address signal
A1～A13: heating resistor address signal A1: address signal
SEL1, SEL2: select signal R1, R2, R3, R4: resistance
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to ink-jet printing head controller and its specific embodiment of ink-jet printer, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Seeing also shown in Figure 3ly, is the circuit diagram of the ink-jet printing head controller of a preferred embodiment of the present invention.As shown in FIG., this ink-jet printing head controller comprises buffer circuit 301 and ink-jet radiating circuit 303, and wherein buffer circuit 301 is to be composed in series by phase inverter 305,307, and the task driven voltage of these two phase inverters is to be controlled by identical address signal A1.The input of phase inverter 305 carries out anti-phase processing after receiving selection signal SEL, and then be sent to phase inverter 307 via the output of phase inverter 305, after phase inverter 307 carries out anti-phase processing once more, send the buffering signal to ink-jet radiating circuit 303 through transmission line 317 by output.
In ink-jet radiating circuit 303, having for example is two field-effect transistors 309 and 311 (but practical application is not limited thereto number), and the grid of these two field-effect transistors (gate) end receives the buffering signal that is sent by phase inverter 307 simultaneously.Can be, to be in these those skilled in the art to open or to close field-effect transistor (MOSFET) 309 and 311 as the switch signal by the buffering signal of buffer circuit 301 outputs with understanding.When ink-jet radiating circuit 303 received buffering signals were high potential, the passage between the field-effect transistor was conducting, and heating resistor H also can begin to heat, and prepared the nozzle ejection of ink heating back by print cartridge.Ink-jet radiating circuit 303 in the present embodiment, the buffering signal that it received is a voltage signal, be that field-effect transistor in the ink-jet radiating circuit is whether to decide work with voltage level, if change the working method in the ink-jet radiating circuit 303, change by current system and do to drive, only need on transmission line 317 and connect a resistance to ground to reach requirement.
Seeing also shown in Figure 4ly, is the circuit diagram of the buffer circuit of a preferred embodiment of the present invention.As shown in FIG., this buffer circuit comprises two phase inverter 305A and 307A, is made up of field-effect transistor F1, resistance R 1 and field-effect transistor F2, resistance R 2 respectively, and the power drives voltage of these two phase inverters all is to be controlled by address signal A1 simultaneously.Field-effect transistor F1 in phase inverter 305A, its gate terminal series resistor R3 receive to select signal SEL simultaneously to ground, and the whether conducting of the passage of decision field-effect transistor F1 is to export corresponding anti-phase signal.Field-effect transistor F2 among the phase inverter 307A, its gate terminal is after receiving anti-phase signal, and the corresponding buffering signal of output moves with the processing of decision subsequent conditioning circuit again.At this embodiment, as shown in Figure 4, resistance R 1 and R2 value can be about 0.5k ohm to about 500k ohm, and preferred values is extremely about 200k ohm of about 5k ohm, and optimum value is that about 20k ohm is to 80k ohm; Resistance R 3 and R4 value can be about 1k ohm to about 500k ohm, and preferred values is that about 20k ohm is to about 80k ohm.
Seeing also shown in Figure 5ly, is the circuit diagram of the another kind of buffer circuit of a preferred embodiment of the present invention.As shown in FIG., this buffer circuit comprises two phase inverter 305B and 307B, and these two phase inverters are to be made of field-effect transistor equally.Phase inverter 305B is by field-effect transistor F3, F4, F5 compose in series, and phase inverter 307B is made up of field-effect transistor F6, F7, the embodiment maximum of this embodiment and earlier figures 4 different, be exactly that this embodiment can receive two selection signal SEL1 and SEL2 simultaneously, then according to these two states of selecting signal, again by the corresponding buffering signal of phase inverter 307B output.
In phase inverter 305B, the drain electrode of field-effect transistor F3 (dra in) end and gate terminal are coupled in and form the drain electrode back coupling together, and its drain electrode end receiver address signal A1, the drain electrode end of source terminal and field-effect transistor F4 couples together, and export anti-phase signal, the gate terminal of field-effect transistor F4 receives selects signal SEL1, and the drain electrode end of source terminal and field-effect transistor F5 couples together simultaneously, the gate terminal of field-effect transistor F5 receives selects signal SEL2, and source terminal is connected to ground.As long as it is that the low-voltage position is punctual that a signal is wherein arranged, then have the passage of a field-effect transistor can't form in selecting signal SEL1 and SEL2, therefore the anti-phase signal of being exported can be high voltage level; Otherwise, having only when selecting signal SEL1 and SEL2 simultaneously for high voltage level, the anti-phase signal of output just can be a low-voltage position standard.In addition, the field-effect transistor F3 in phase inverter 305B also can use the resistance R 1 among embodiment Fig. 4 to substitute.In addition, in the present embodiment, the SEL2 signal that field-effect transistor F5 is received can also make receiver address signal A1 into, also can reach similar effect (be F4 and F5 when receiving high voltage level simultaneously, the anti-phase signal of output just can be a low-voltage position standard).
And in phase inverter 307B, field-effect transistor F6 is the same with field-effect transistor F3, connect into drain electrode back coupling pattern, source terminal and field-effect transistor F7 couple together, simultaneously export corresponding buffering signal according to the anti-phase signal that is received, the gate terminal of field-effect transistor F7 receives anti-phase signal, and source terminal is coupled to ground.
Be familiar with this skill person, when buffer circuit need receive that more selection signal does to judge according to the time, as long as in phase inverter 305B, continue field-effect transistor F5, continue to be connected in series other field-effect transistor, the selection signal (or address signal) that will increase newly again inputs to the gate terminal of newly-increased field-effect transistor, can reach the requirement that needs a plurality of selection signals of input.
Seeing also shown in Figure 6ly, is the circuit diagram of another buffer circuit of a preferred embodiment of the present invention.As shown in FIG., the buffer circuit of this embodiment is made up of two phase inverter 305C and 307C equally, wherein the circuit of phase inverter 305C and phase inverter 305A is identical, and in phase inverter 307C, the drain electrode end of field-effect transistor F9 and gate terminal are coupled in together, form drain electrode and feedback drain electrode end receiver address signal, the drain electrode end of source terminal and field-effect transistor F10 couples together, and output buffering signal.The gate terminal of field-effect transistor F10 is in order to receiving the anti-phase signal that is sent by phase inverter 305C, and the passage conducting that decides field-effect transistor F10 according to the voltage of anti-phase signal whether, and source terminal is coupled to ground.
Seeing also shown in Figure 7ly, is the circuit diagram of the another kind of buffer circuit again of a preferred embodiment of the present invention.As shown in FIG., the buffer circuit of this embodiment is made up of two phase inverter 305D and 307D equally, wherein the circuit of phase inverter 305D and phase inverter 305A is identical, and in 307D, the drain electrode end receiver address signal of field-effect transistor F12, gate terminal is coupled in the drain electrode end of drain electrode end and field-effect transistor F13, source terminal is then exported the buffering signal, the gate terminal of field-effect transistor F13, source terminal, the source terminal of field-effect transistor F12, and the drain electrode end of field-effect transistor F14 then is to be coupled in together, the gate terminal of field-effect transistor F14 receives the anti-phase signal that is sent by phase inverter 305D, the whether conducting of the passage of decision field-effect transistor F14, and its source terminal is coupled to ground.
Seeing also shown in Figure 8ly, is the circuit box schematic diagram of the ink-jet printer of a preferred embodiment of the present invention.As shown in FIG., this ink-jet printer has comprised ink-jet printing head driver element 801, wherein ink-jet printing head driver element 801 has comprised ink-jet printing head drive circuit 803 and ink-jet printing head selection circuit 805, being installed in then comprised it for example being two groups of print cartridges and corresponding ink injection print-head control circuit thereof in the ink-jet printing head module 827 of this ink-jet printer, is respectively the ink injection print-head control circuit 807 of black print cartridge and the ink injection print-head control circuit 815 of colour ink box.The mode of operation of this ink-jet printer, be by 803 outputs of the ink-jet printing head drive circuit in the ink-jet printing head driver element 801, one group address signal, and select circuit 805 outputs one group selection signal by ink-jet printing head, by these two groups of signals control in the ink-jet printer the nozzle activation whether.Be familiar with this skill person, in other embodiments, the number of print cartridge can be greater than two.
The buffer circuit group 809 of the black print cartridge ink injection print-head control circuit 807 in the ink-jet printing head module 827 is come the receiver address signal and is selected signal by transmission line 823 and 825, buffer circuit group 809 can be according to the state of address signal and selection signal, output pool of buffer signal (being the switch signal).Ink-jet radiating circuit group 811 then can determine whether launching ink according to the buffering signal after receiving the buffering signal, if when needing the emission ink, again via nozzle sets 813 emission inks.
The internal circuit of another colour ink box ink injection print-head control circuit 815 and operating principle then are identical with black print cartridge ink injection print-head control circuit 807, its buffer circuit group 817 is received a signal and is selected signal by transmission line 823 and 825 ', buffer circuit group 817 can be according to the state of address signal and selection signal, output pool of buffer signal.Ink-jet radiating circuit group 819 then can determine whether launching ink according to the buffering signal after receiving the buffering signal.If when needing the emission ink, again via nozzle sets 821 emission inks.
In the described in front ink-jet printer, black print cartridge ink injection print-head control circuit 807 and colour ink box ink injection print-head control circuit 815, its received address signal and selection signal are by transmission line 823,825 and 825 ' transmits, promptly mean three signals that this ink-jet printer can be transmitted via single ink-jet printing head driver element 801, control the action of ink-jet printing head module 827 interior two ink-jet printing heads, if that is when needing in the ink-jet printer to increase other print cartridge again, only need to increase the corresponding selection signal of this newly-increased print cartridge, and the print cartridge ink injection print-head control circuit that increases newly only need receive aforementioned identical address signal signal again and gets final product.
In addition, have the buffer circuit of many groups in the buffer circuit group 809,817, each group buffer circuit is receiver address signal and selection signal then, and the corresponding buffering signal of output.In the same manner, also have the ink-jet radiating circuit of many groups in the ink-jet radiating circuit group 811,819, each group ink-jet radiating circuit is electrically coupled to different buffer circuits, and receives the buffering signal that this buffer circuit transmits.Have a plurality of nozzles too in the nozzle sets 813,821, when the judgement of ink-jet radiating circuit needs the emission ink, then be responsible for emission via pairing nozzle.
Seeing also shown in Figure 9ly, is the circuit box schematic diagram of the another kind of ink-jet printer of a preferred embodiment of the present invention.As shown in FIG., this ink-jet printer has comprised ink-jet printing head drive circuit 801 and for example has been the ink injection print-head control circuit 807 of black print cartridge, identical with the embodiment of Fig. 8, ink-jet printing head driver element 801 has comprised ink-jet printing head drive circuit 803 and ink-jet printing head selection circuit 805, is responsible for the transfer address signal respectively and selects signal.
The ink injection print-head control circuit 807 of black print cartridge has then comprised buffer circuit 301, ink-jet radiating circuit 303 and nozzle 901, field-effect transistor F1 and F2 in the buffer circuit 301, its task driven voltage is to be controlled by the address signal that ink-jet printing head drive circuit 803 is transmitted, and the gate terminal of field-effect transistor F1 receives the selection signal of selecting circuit 805 to be transmitted by ink-jet printing head, export anti-phase signal to field-effect transistor F2 according to the selection signal state that is transmitted, export corresponding buffering signal by field-effect transistor F2 to ink-jet radiating circuit 303 according to anti-phase signal again, if the judged result that receives behind the buffering signal is when needing the emission China ink, the ink-jet radiating circuit can heat ink, launches through nozzle 901 again.
Though in the present embodiment, in the ink injection print-head control circuit 807 of black print cartridge, only comprise the pool of buffer circuit, be familiar with this skill person, buffer circuit can be extended for more groups.In addition, this embodiment also can be used in colour or other color print cartridge.
In sum, according to ink-jet printing head controller proposed by the invention, it can utilize a plurality of phase inverters of serial connection to form buffer circuit, receives the activation situation that one or more control signal is responsible for the nozzle of control ink-jet printing head, and whether the emission of decision ink; This ink-jet printer can use identical signal to control the action of many group ink-jet printing heads simultaneously, to reduce the complexity of circuit.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (19)
1, a kind of ink-jet printing head controller is disposed in the ink-jet printing head, and this ink-jet printing head is one of them of a plurality of ink-jet printing heads of a printer, it is characterized in that it comprises:
One buffer circuit, select signal in order to receive an address signal and, this selection signal is one of them from the seal head selection a plurality of selection signals that circuit provided in the seal driver element, in order to this ink-jet printing head of activation optionally, this buffer circuit is selected signal and this address signal according to this, exports a corresponding switch signal; And
One ink-jet radiating circuit, in order to receiving this switch signal from this buffer circuit, and according to this switch signal decision emission ink whether,
Wherein a voltage quasi position of this address signal and this selection signal is in accurate position of a logic high voltage or the accurate position of a logic low-voltage,
And when this address signal and this were selected signal all in the accurate position of this logic high voltage, this switch signal was in the accurate position of a logic high voltage, with this ink-jet radiating circuit of activation optionally.
2, ink-jet printing head controller according to claim 1 is characterized in that wherein said address signal is the task driven voltage of this buffer circuit.
3, ink-jet printing head controller according to claim 1, it is characterized in that wherein said buffer circuit is to be composed in series by at least the first phase inverter and second phase inverter, wherein this first phase inverter receives this selection signal, and this first phase inverter all receives this identical address signal with this second phase inverter.
4, ink-jet printing head controller according to claim 3 is characterized in that wherein said phase inverter is made up of field-effect transistor.
5, ink-jet printing head controller according to claim 4 is characterized in that wherein said buffer circuit comprises:
One first resistance, first end of this first resistance is in order to receive this address signal;
One first field-effect transistor, first end of this first field-effect transistor couples second end of this first resistance, and exports an anti-phase signal, and second end is in order to receive this selection signal, and the 3rd end is connected to ground;
One second resistance, first end of this second resistance is in order to receive this address signal; And
One second field-effect transistor, first end of this second field-effect transistor couples second end of this second resistance, and exports this switch signal, and second end is in order to receive this anti-phase signal, and the 3rd end is connected to ground.
6, ink-jet printing head controller according to claim 5 is characterized in that the resistance value of wherein said first resistance and this second resistance is to 500k ohm by 0.5k ohm.
7, ink-jet printing head controller according to claim 5 is characterized in that the optimum resistance value of wherein said first resistance and this second resistance is to 80k ohm by 20k ohm.
8, ink-jet printing head controller according to claim 4 is characterized in that wherein said buffer circuit comprises:
One first resistance, first end of this first resistance is in order to receive this address signal;
One first field-effect transistor, first end of this first field-effect transistor couples second end of this first resistance, and exports an anti-phase signal, and second end is in order to receive this selection signal, and the 3rd end is coupled to ground;
One second field-effect transistor, first end of this second field-effect transistor is in order to receive this address signal, and second end is coupled to first end of this second field-effect transistor, and the 3rd end is exported this switch signal; And
One the 3rd field-effect transistor, first end of the 3rd field-effect transistor couples the 3rd end of this second field-effect transistor, and second end is in order to receive this anti-phase signal, and the 3rd end is coupled to ground.
9, ink-jet printing head controller according to claim 8, the resistance value that it is characterized in that wherein said first resistance is to 500k ohm by 0.5k ohm.
10, ink-jet printing head controller according to claim 8, the optimum resistance value that it is characterized in that wherein said first resistance is to 80k ohm by 20k ohm.
11, ink-jet printing head controller according to claim 4 is characterized in that wherein said buffer circuit comprises:
One first resistance, first end of this first resistance is in order to receive this address signal;
One first field-effect transistor, first end of this first field-effect transistor couples second end of this first resistance, and exports an anti-phase signal, and second end is in order to receive this selection signal, and the 3rd end is connected to ground;
One second field-effect transistor, first end of this second field-effect transistor is in order to receive this address signal, and the 3rd end is exported this switch signal;
One the 3rd field-effect transistor, first end of the 3rd field-effect transistor couple first end and second end of this second field-effect transistor, and second end and the 3rd end couple the 3rd end of this second field-effect transistor simultaneously; And
One the 4th field-effect transistor, first end of the 4th field-effect transistor couples the 3rd end of this transistor seconds, and second end is in order to receive this anti-phase signal, and the 3rd end is coupled to ground.
12, ink-jet printing head controller according to claim 11, the resistance value that it is characterized in that wherein said first resistance is to 500k ohm by 0.5k ohm.
13, ink-jet printing head controller according to claim 11, the optimum resistance value that it is characterized in that wherein said first resistance is to 80k ohm by 20k ohm.
14, a kind of ink-jet printer is characterized in that it comprises:
One ink-jet printing head driver element, it selects circuit to form by an ink-jet printing head drive circuit and an ink-jet printing head, and this ink-jet printing head drive circuit is exported a plurality of address signals, and this ink-jet printing head selects circuit to export a plurality of selection signals; And
Many group ink-jet printing head control modules, each described ink-jet printing head control module receives corresponding described address signal and corresponding described selection signal respectively, in order to control the mentioned nozzle area activation situation in the described ink-jet printing head control module, whether decision emission ink to be, and wherein each described ink-jet printing head control module comprises:
Many group buffer circuits, each described buffer circuit is selected signal in order to one of them of one of them address signal of receiving described a plurality of address signals and described a plurality of selection signals, and each described buffer circuit is exported a switch signal according to this selection signal and this address signal that are received;
Many group ink-jet radiating circuits, each described ink-jet radiating circuit receives corresponding this switch signal, and whether launches ink according to this switch signal decision; And
Many group nozzles, the corresponding described many group ink-jet radiating circuits of each described nozzle one of them, be responsible for the emission ink,
Wherein a voltage quasi position of this address signal and this selection signal is in accurate position of a logic high voltage or the accurate position of a logic low-voltage,
And when this address signal and this were selected signal in the accurate position of this logic high voltage, this buffering signal was accurate an of logic high voltage, with this ink-jet radiating circuit of activation optionally.
15, ink-jet printer according to claim 14 is characterized in that wherein said address signal is the task driven voltage of this buffer circuit.
16, ink-jet printer according to claim 14 is characterized in that wherein said buffer circuit is to be composed in series by many groups phase inverter.
17, ink-jet printer according to claim 16 is characterized in that wherein said phase inverter is made up of field-effect transistor.
18, a kind of ink-jet printing head controller is characterized in that it comprises:
One buffer circuit is selected signal in order to receive an address signal and, and this buffer circuit is composed in series by the many groups of phase inverters of being made up of field-effect transistor, selects signal and this address signal according to this, exports a corresponding switch signal; And
One ink-jet radiating circuit, in order to receiving this switch signal, and according to this switch signal decision emission ink whether.
19, a kind of ink-jet printer is characterized in that it comprises:
One ink-jet printing head driver element, it selects circuit to form by an ink-jet printing head drive circuit and an ink-jet printing head, and this ink-jet printing head drive circuit is exported a plurality of address signals, and this ink-jet printing head selects circuit to export a plurality of selection signals; And
Many group ink-jet printing head control modules, each described ink-jet printing head control module receives corresponding described address signal and corresponding described selection signal respectively, in order to control the mentioned nozzle area activation situation in the described ink-jet printing head control module, whether decision emission ink to be, and wherein each described ink-jet printing head control module comprises:
Many group buffer circuits, wherein each described buffer circuit is composed in series by many groups phase inverter, described each phase inverter is made up of field-effect transistor, each described buffer circuit is selected signal in order to one of them of one of them address signal of receiving described a plurality of address signals and described a plurality of selection signals, and each described buffer circuit is exported a switch signal according to this selections signal that is received and this address signal;
Many group ink-jet radiating circuits, each described ink-jet radiating circuit receives corresponding this switch signal, and whether launches ink according to this switch signal decision; And
Many group nozzles, the corresponding described many group ink-jet radiating circuits of each described nozzle one of them, be responsible for the emission ink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100424448A CN100503247C (en) | 2004-05-21 | 2004-05-21 | Ink jet print head controller and ink jet printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100424448A CN100503247C (en) | 2004-05-21 | 2004-05-21 | Ink jet print head controller and ink jet printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1699059A CN1699059A (en) | 2005-11-23 |
| CN100503247C true CN100503247C (en) | 2009-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100424448A Expired - Fee Related CN100503247C (en) | 2004-05-21 | 2004-05-21 | Ink jet print head controller and ink jet printer |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442066B (en) * | 2010-09-30 | 2014-06-25 | 研能科技股份有限公司 | Ink jet unit set |
| CN102485486B (en) * | 2010-12-02 | 2014-09-10 | 研能科技股份有限公司 | Ink jet unit group |
| JP6372333B2 (en) * | 2014-12-11 | 2018-08-15 | セイコーエプソン株式会社 | Liquid ejection device, head unit, integrated circuit device for capacitive load driving, and capacitive load driving circuit |
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| CN1699059A (en) | 2005-11-23 |
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