CN1311974C - Printing unit, ink jet head, ink jet head driving circuit and its control method - Google Patents
Printing unit, ink jet head, ink jet head driving circuit and its control method Download PDFInfo
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- CN1311974C CN1311974C CNB2004100088466A CN200410008846A CN1311974C CN 1311974 C CN1311974 C CN 1311974C CN B2004100088466 A CNB2004100088466 A CN B2004100088466A CN 200410008846 A CN200410008846 A CN 200410008846A CN 1311974 C CN1311974 C CN 1311974C
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Abstract
The present invention relates to a printing device, an ink gun, a driving control circuit of the ink gun and a control method thereof. The printing device can receive an image datum, and comprises a controller, a plurality of address lines, a plurality of main bank lines, a plurality of control lines and a plurality of ink jet modules, wherein the controller receives the image datum and outputs a corresponding address signal, a main bank line signal and control signals; the ink jet modules are arranged correspondingly to the address lines and the bank lines; each ink jet module comprises a plurality of ink jet units, and each ink jet unit comprises a heating assembly and a switch unit coupled with the control lines in order to control the heating assembly, wherein when a presumptive address line of the address lines and a presumptive main bank line of the main bank lines receive the address signal and the main bank signal, and the control lines receive the control signals, the control signals turn on one switch unit to produce drive current in order to start the heating assembly connected to the switch unit.
Description
Technical field
The present invention is particularly to a kind of ink gun Drive and Control Circuit and control method thereof that reduces output and input pins relevant for a kind of ink gun.
Background technology
Fig. 1 shows an ink gun 10, most nozzles 11 (nozzles) on the ink gun 10 are arranged on the substrate 12 with the array form, using ejection ink droplet to prints on the surface, (figure does not show to be provided with drive circuit at substrate 12, detailed circuit is in repeating after a while) to control the action of each nozzle 11, this drive circuit also is connected to via a flexible circuit board 14 on the output and input pins 16 of correspondence, please continue and consult Fig. 2, controller 20 (controller) in these ink gun 10 subject printers 2 output control signal on the interlock circuit of above-mentioned output and input pins 16 to the drive circuit to drive relevant nozzle 11 ejection ink droplets (this action also is called firing).
The circuit diagram of above-mentioned drive circuit is to be shown in Fig. 3, drive circuit 18 is to have to be a plurality of address wires A1～AN and a plurality of staggered main separations that the array form arranges and to select line (primitive selectlines) B1～BN, and each address wire A1～AN and main separation are selected on the intersection point on line B1～BN has an activation circuit 180 (enable circuit) to control corresponding heating component R1～RK (heaterelements).And enable circuit 180 has the transistor N1～NK that is used as switch, for example start heating component R1, at first, controller 20 is pulled to high potential with turn-on transistor N1 with address wire A1, then, main separation is selected line B1 be pulled to high potential and make heating component R1 by current flow heats, after heating component R1 was activated (activated), ink will be via nozzle (nozzle) ejection of correspondence.
Therefore according to aforementioned, the address wire of one ink gun and main separation are selected line and (for example: if address wire has 20 are multiplied each other the number that is its nozzle, main separation is selected line 20, then its nozzle number then is 20 * 20=400), therefore traditional ink gun is when printing, nozzle (nozzle) number that can control is subject to the number restriction that address wire (address lines) and main separation are selected line (primitive select lines), and address wire is selected the line number with main separation and is subject to the output and input pins number that ink gun is connected printer, nowadays process technique progress makes nozzle number significantly increase, after nozzle number increases, address wire and main separation are selected line also to be increased the output and input pins that causes ink gun to be connected printer and is subject to the problem that the area pass is.
For example No. 6176569 patent of the U.S. promptly discloses one and can control main separation and select line ((primitiveselect lines, claim line again, the bank line) circuit, mode is transistor switch of online series connection in the address, and the transistor switch control line of connecting on it in all addresses of nozzle of same block (bank) all is connected together, therefore utilize this mode and interlock each nozzle of controlling except select line by address wire and main separation, also must cooperate a power line (power line) to control nozzle is started, control mode complexity and number of contacts are still more.
For example United States Patent (USP) has disclosed another kind of relevant nozzle control circuit for No. 6431677 in addition, it utilizes address wire originally and main separation to select the staggered composition of line, add a Q line, utilize address wire control Q line to reach the method for control nozzle, the number of contacts of the method is still more.
Summary of the invention
In view of this, main purpose of the present invention is to provide an ink gun that can reduce output and input pins to control nozzle circuit and ink gun nozzle control method thereof.
For reaching aforementioned purpose, the invention provides a kind of ink gun nozzle and drive control method, the image data that received according to a printer of this ink gun wherein, through the controller of inside and start a plurality of heating components of this ink gun inside, so that corresponding nozzle ejection ink droplet to is printed on the surface, this method comprises: produce m address signal, wherein respectively being in of this address signal correspondence one opened or closed condition; Produce k control signal to the plural switch element, control signal for this k and make this switch element respectively produce the unlatching or the closed condition of a correspondence according to image data; Produce n main separation and select the line signal, wherein respectively this main separation select the line signal in regular turn be in an opening when all the other main separations are selected line and are in a closed condition; And when an address signal wherein, corresponding switch element and corresponding main separation are selected the line signal and all be in opening, produce a drive current and start this heating component.
Then, the invention provides a kind of printing equipment, receive an image data, this printing equipment comprises: plural address wire (address line); The plural number main separation is selected line (bank line); The plural number control line; The plural number ink spray module is selected line and is provided with corresponding to these address wires and these; Respectively this ink spray module has plural ink jet unit, and respectively this ink jet unit comprises a heating component, and a switch element couples these control lines to control this heating component; Wherein, the one predetermined main separation of selecting line when a presumptive address line of these address wires and these main separations selects that line receives this address signal and this main separation is selected signal, and these control lines are when receiving plural number control signal, open a switch element by these control signals, use generation one drive current and start the heating component that this is connected to this switch element.
Then, the present invention proposes a kind of ink gun, receives an address signal, the main separation exported by a controller and selects line signal and k control signal, and this ink gun comprises: plural address wire (addressline); The plural number main separation is selected line (bank line); The plural number control line; The plural number ink spray module is selected line and is provided with corresponding to these address wires and these; Respectively this ink spray module has plural ink jet unit, and respectively this ink jet unit comprises a heating component, and a switch element couples these control lines to control this heating component; Wherein, the one predetermined main separation of selecting line when a presumptive address line of these address wires and these main separations selects that line receives this address signal and this main separation is selected signal, and these control lines are when receiving plural number control signal, open a switch element by these control signals, use generation one drive current and start the heating component that this is connected to this switch element.
At last, the present invention proposes an ink gun nozzle Drive and Control Circuit, receives an address signal, the main separation exported by a controller and selects line signal and k control signal, and this Drive and Control Circuit comprises: plural address wire (address line); The plural number main separation is selected line (bank line); The plural number control line; The plural number ink spray module is selected line and is provided with corresponding to these address wires and these; Respectively this ink spray module has plural ink jet unit, and respectively this ink jet unit comprises a heating component, and a switch element couples these control lines to control this heating component; Wherein, the one predetermined main separation of selecting line when a presumptive address line of these address wires and these main separations selects that line receives this address signal and this main separation is selected signal, and these control lines are when receiving plural number control signal, open a switch element by these control signals, use generation one drive current and start the heating component that this is connected to this switch element.
Description of drawings
Fig. 1 is the schematic appearance that shows an ink gun;
Shown in Figure 2 is the circuit box schematic diagram that shows a printing equipment inside;
Fig. 3 is the circuit diagram that shows a traditional ink gun control driving circuit;
Fig. 4 is the circuit box schematic diagram of the present invention's first preferred embodiment.
Fig. 5 is the circuit diagram of the present invention's second preferred embodiment.
Fig. 6 is the circuit diagram of the present invention's the 3rd preferred embodiment.
Fig. 7 a and Fig. 7 b are the circuit diagrams of the present invention's the 4th preferred embodiment.
Symbol description:
10～ink gun;
11～most nozzles;
12～substrate;
14～flexible circuit board;
16～output and input pins;
In 2～printer;
20～controller;
18～drive circuit;
A1～AN～a plurality of address wires;
B1～BN～a plurality of main separations are selected line (primitive select lines);
R1～RK～heating component;
180～enable circuit;
30～ink gun;
31～ink-jet casket;
300～Drive and Control Circuit;
R1～R4～heating component;
SW1～SW4～switch module;
A1～Am～m bar address wire;
P1～Pn～n bar main separation is selected line (bank line);
K1～kn～k bar control line;
X1～Xm * n～m * n ink spray module;
Y1～Y2
K～2
kIndividual ink jet unit;
R1～2
K～heating component;
Z1～Z2
K～switch element;
SW1～SW2
K～switch module;
Z1～Z4～switch element;
A1～address wire;
P1～main separation is selected line;
O1, O2, O3～control line;
S1～first switch;
S2～second switch;
Q1～nmos pass transistor;
Q2～transistor;
Q3～transistor;
R
P～resistance;
Z1～Z8～switch element;
R1～R8～heating component.
The specific embodiment
First embodiment
Fig. 4 is the block schematic diagram that shows printing equipment of the present invention, ink gun 30 of the present invention is arranged in the ink-jet casket 31 of this printing equipment 2, and receive the signal exported by the controller 20 in this printing equipment 2 (comprise an address signal, a main separation select signal and plural number control signal) and drive inner Drive and Control Circuit 300, the detailed circuit of relevant Drive and Control Circuit 300 is described below.
Second embodiment
Fig. 5 shows the schematic diagram of ink gun Drive and Control Circuit 300 of the present invention, and it has m bar address wire A1～Am; N bar main separation is selected line (bank line) P1～Pn; And k bar control line O1～On; M * n ink spray module X1～Xm * n selects line P1～Pn and is provided with corresponding to these address wires A1～Am and these; Respectively this ink spray module X1～Xm * n has 2
kIndividual ink jet unit Y1～Y2
K, this ink jet unit Y1～Y2 respectively
KComprise a heating component R1～R2
K, and a switch element Z1～Z2
KInput be coupled on these control lines O1～On, output is then through the switch module SW1～SW2 of correspondence
KBe coupled to corresponding heating component R1～R2
K
During actual act, the one predetermined main separation of selecting line P1～Pn when the presumptive address line of these address wires A1～Am and these main separations selects that line receives this address signal and this main separation is selected signal, and these control lines O1～On opens switch element Z1～Z2 according to these control signals when receiving plural number control signal
KA switch element (in detail opening ways as then repeat) wherein, address signal is through switch element Z1～Z2
KSwitch module SW1～SW2 that input is corresponding
KOn, switch module SW1～SW2
KBe unlocked, use producing drive current startup heating component R1～R2
KTo drive relevant nozzle (not shown) ejection ink droplet.
The 3rd embodiment
Fig. 6 is the schematic diagram that shows ink gun Drive and Control Circuit 300 another preferred embodiments of the present invention, it shows that an address wire A1 and a main separation select a line P1 and an ink spray module X1, and it has 2 control line O1, O2 and is connected among 4 ink jet unit Y1～Y4 among the ink spray module X1.Have 4 heating component R1～R4,4 switch module SW1～SW4,4 switch element Z1～Z4 among 4 ink jet unit Y1～Y4 among this ink spray module X1.
Wherein respectively this heating component R1～R4 in order to heating ink so that ink ejection ink droplet to print on the surperficial (not shown).
Above-mentioned each switch module SW1～SW4 serial connection is to corresponding heating component R1～R4.SW1～SW4 is a nmos pass transistor at this switch module, and its drain is connected to that heating component R1～R4 is last, source terminal ground connection, and its grid then is connected on corresponding switch element Z1～Z4.
Switch element Z1～Z4 is coupled on corresponding switch module SW1～SW4, this address wire A1 then is connected to respectively on the input of above-mentioned switch element Z1～Z4, above-mentioned two control line O1, O2 are connected on two inputs in addition of these switch elements Z1～Z4, use these switch elements of control Z1～Z4 and are corresponding unlatching or closed condition.In the present embodiment, switch element Z1 has two first switch S 1, for example two the serial connection nmos pass transistor Q1, two first switch S 1 are connected to respectively on control line O1, the O2, when the control signal of control line O1, O2 is high potential, two first switch S 1 all are opening, and switch element Z1 promptly is unlocked.Switch element Z2 has one first switch S 1 and a second switch S2, first switch S 1 has been one to be serially connected with the nmos pass transistor Q1 on the address wire A1 in preceding addressing, second switch S2 then is made up of a transistor Q2 and a transistor Q3, when the grid of this transistor Q3 receives the low-voltage control signal that is passed by control line O2, transistor Q3 closes, and the grid of address signal inflow transistor Q2 is to open this transistor Q2; Therefore, when the control signal of control line O1 is a high potential, when the control signal of control line O2 was electronegative potential, corresponding first switch S 1 and second switch S2 promptly were unlocked, and switch element Z2 promptly is opening.According to above-mentioned control method, switch element Z3 has second switch S2 and one first switch S 1 in regular turn, therefore the control signal on control line O1 is an electronegative potential, when the control signal on the control line O2 is high potential, corresponding the second switch S2 and first switch S 1 can be unlocked, and switch element Z3 is unlocked.Switch element Z4 has two second switch S2 and is connected to control line O1, O2 respectively, and therefore when the control signal of control line O1 and control line O2 was all electronegative potential, switch element Z4 can be unlocked.
Therefore construct by the circuit of this preferred embodiment, when the online address signal in (1) address is opening (on state for example is a high potential); When (2) Dui Ying switch element is opening and (3) main separation and selects the line signal and be opening (on state for example is a high potential); Corresponding heating component can be activated.Therefore, in the time of for example will opening heating component R1, the address signal on the address wire A1 is that opening, main separation are selected main separation on the line P1 to select the line signal be that control signal on opening and control line O1, the O2 is a high potential.
In addition, further be provided with a discharge circuit between the other and corresponding switch element Z1～Z4 of each switch module SW1～SW4, this discharge circuit is the resistance R of being located between transistorized gate terminal and earth terminal
P, after switch module SW1～SW4 is closed, is accumulated in the extreme electric charge of its transistor gate of switch module SW1～SW4 and promptly can flow to earth terminal through this discharge circuit.
The 4th embodiment
Fig. 7 a and Fig. 7 b are the circuit diagrams of the another preferred embodiment of the present invention, and it does not exist together with the 3rd preferred embodiment is that its ink spray module X1 ' is connected an address wire A1, a main separation and selects line P1 and three control line O1, O2 and O3, so relative form 2
3Plant state of a control, to control 8 corresponding ink jet unit Y1～Y8.
Switch element Z1～Z8, to open heating component R1～R8, its control kenel sees also following table:
| Z1 | Z2 | Z3 | Z4 | Z5 | Z6 | Z7 | Z8 | |
| O1 O2 O3 | Gao Gaogao | Height | Height is high | Height is low | Low high | Low height | Low high | Low |
Be to show control line O1, O2 and the control signal current potential of O3 and the relation of related switch unit Z1～Z8 in the last table, when the current potential of control line O1, O2 and O3 presented as the state in the table, corresponding switch element Z1～Z8 can be unlocked.For example when the control signal of control line O1 be that the control signal of high potential, control line O2 is that the control signal of high potential, control line O3 is when being electronegative potential, second switch S2 and two first switch S 1 corresponding among the switch element Z2 all can be unlocked, and switch element Z2 is opening; When address wire A1 and main separation were selected line P1 and also be opening, heating component R2 promptly was unlocked.
By the foregoing description as can be known, an address wire and a main separation are selected line and can only be controlled a shower nozzle in traditional ink-jet head driving circuit, then can control 2 after adding 2 control lines in the present invention
2Individual shower nozzle; Then can control 2 after adding 3 control lines
3Individual shower nozzle; The rest may be inferred, and as shown in Figure 5, it selects line and k bar control line by m bar address wire, n bar main separation, and controllable shower nozzle number then is m * n * 2
kIndividual; For instance, if need 32 address wires if traditional ink gun has 576 shower nozzles and 18 main separations are selected line (32 * 18=576) are controlled, and the number of contacts that then connects printer then needs 32+18=50 contact; If the words of using the present invention to add 3 control lines only need 18 * 4 * 2
3=576, only need 18+4+3=25 contact, almost only account for 1/2 number of contacts, area reduces half relatively.
Claims (32)
1. a printing equipment receives an image data, and this printing equipment comprises:
One controller receives this image data and OPADD signal, main separation are selected line signal and plural number control signal;
One ink gun is connected to this controller, comprising:
The plural number address wire;
The plural number main separation is selected line;
The plural number control line;
The plural number ink spray module is provided with corresponding to this address wire and this selection line; Respectively this ink spray module has plural ink jet unit, and respectively this ink jet unit comprises a heating component, and a switch element couples this control line to control this heating component;
Wherein, the one predetermined main separation of selecting line when a presumptive address line of this address wire and this main separation selects that line receives this address signal and this main separation is selected signal, and this control line is when receiving plural number control signal, open a switch element by this control signal, use generation one drive current and start the heating component that this is connected to this switch element.
2. printing equipment according to claim 1, wherein this control line has the k bar, and respectively this ink spray module has 2
kIndividual ink jet unit, 2
kIndividual heating component and 2
kIndividual switch element.
3. printing equipment according to claim 1, wherein this ink gun further comprises 2
kIndividual switch module is connected to this corresponding switch element, and after wherein a switch element was activated, the switch module that is connected to this switch element promptly was unlocked and produces this drive current.
4. printing equipment according to claim 1, wherein this k control signal can produce 2
kPlant control mode with input control 2
kIndividual switch element.
5. printing equipment according to claim 1, wherein respectively this control signal produces a high potential to open one first switch or electronegative potential to open a second switch.
6. printing equipment according to claim 5, wherein this first switch has a transistor switch, and its grid receives the control signal of this high potential to open this transistor switch.
7. printing equipment according to claim 5, wherein this second switch is made up of a first transistor and a transistor seconds, when the grid of this transistor seconds receives the control signal of low-voltage, this transistor seconds is closed, and address signal flows into the grid of the first transistor to open this first transistor.
8. printing equipment according to claim 3 wherein, respectively further is being provided with a discharge circuit between this switch module and earth terminal.
9. printing equipment according to claim 8, wherein this discharge circuit has a resistance, and it is located between transistorized gate terminal and this earth terminal.
10. an ink gun receives an address signal, the main separation exported by a controller and selects line signal and k control signal, and this ink gun comprises:
The plural number address wire;
The plural number main separation is selected line;
The plural number control line;
The plural number ink spray module is provided with corresponding to this address wire and this selection line; Respectively this ink spray module has plural ink jet unit, and respectively this ink jet unit comprises a heating component, and a switch element couples this control line to control this heating component;
Wherein, the one predetermined main separation of selecting line when a presumptive address line of this address wire and this main separation selects that line receives this address signal and this main separation is selected signal, and this control line is when receiving plural number control signal, open a switch element by this control signal, use generation one drive current and start the heating component that this is connected to this switch element.
11. ink gun according to claim 10, wherein this control line has the k bar, and respectively this ink spray module has 2
kIndividual ink jet unit, 2
kIndividual heating component and 2
kIndividual switch element.
12. ink gun according to claim 10, wherein this ink gun further comprises 2
kIndividual switch module is connected to this corresponding switch element, and after wherein a switch element was activated, the switch module that is connected to this switch element promptly was unlocked and produces this drive current.
13. ink gun according to claim 10, wherein this k control signal can produce 2
kKind of control mode with input control this 2
kIndividual switch element.
14. ink gun according to claim 10, wherein respectively this control signal produces a high potential to open one first switch or electronegative potential to open a second switch.
15. ink gun according to claim 14, wherein this first switch has a transistor switch, and its grid receives the control signal of this high potential to open this transistor switch.
16. ink gun according to claim 14, wherein this second switch is made up of a first transistor and a transistor seconds, when the grid of this transistor seconds receives the control signal of low-voltage, this transistor seconds is closed, and address signal flows into the grid of the first transistor to open this first transistor.
17. ink gun according to claim 12 wherein, respectively further is being provided with a discharge circuit between this switch module and earth terminal.
18. ink gun according to claim 17, wherein this discharge circuit has a resistance, and it is located between transistorized gate terminal and this earth terminal.
19. a driver of ink-jet head receives an address signal, the main separation exported by a controller and selects line signal and k control signal, this ink gun comprises:
The plural number address wire;
The plural number main separation is selected line;
The plural number control line;
The plural number ink spray module is provided with corresponding to this address wire and this selection line; Respectively this ink spray module has plural ink jet unit, and respectively this ink jet unit comprises a heating component, and a switch element couples this control line to control this heating component;
Wherein, the one predetermined main separation of selecting line when a presumptive address line of this address wire and this main separation selects that line receives this address signal and this main separation is selected signal, and this control line is when receiving plural number control signal, open a switch element by this control signal, use generation one drive current and start the heating component that this is connected to this switch element.
20. driver of ink-jet head according to claim 19, wherein this control line has the k bar, and respectively this ink spray module has 2
kIndividual ink jet unit, 2
kIndividual heating component and 2
kIndividual switch element.
21. driver of ink-jet head according to claim 20, wherein this ink gun further comprises 2
kIndividual switch module is connected to this corresponding switch element, and after wherein a switch element was activated, the switch module that is connected to this switch element promptly was unlocked and produces this drive current.
22. driver of ink-jet head according to claim 20, wherein this k control signal can produce 2
kKind of control mode with input control this 2
kIndividual switch element.
23. driver of ink-jet head according to claim 20, wherein respectively this control signal produces a high potential to open one first switch or electronegative potential to open a second switch.
24. driver of ink-jet head according to claim 23, wherein this first switch has a transistor switch, and its grid receives the control signal of this high potential to open this transistor switch.
25. driver of ink-jet head according to claim 23, wherein this second switch is made up of a first transistor and a transistor seconds, when the grid of this transistor seconds receives the control signal of low-voltage, this transistor seconds is closed, and address signal flows into the grid of the first transistor to open this first transistor.
26. driver of ink-jet head according to claim 21 wherein, respectively further is being provided with a discharge circuit between this switch module and earth terminal.
27. driver of ink-jet head according to claim 26, wherein this discharge circuit has a resistance, and it is located between transistorized gate terminal and this earth terminal.
28. an ink gun nozzle drives control method, the image data that received according to a printer of this ink gun wherein, start a plurality of heating components of this ink gun inside through the controller of inside, so that corresponding nozzle ejection ink droplet to is printed on the surface, this method comprises:
Produce m address signal, wherein respectively being in of this address signal correspondence one opened or closed condition;
Produce k control signal to plural switch element, this k control signal makes the switch element that is connected to this k control signal produce the unlatching or the closed condition of a correspondence according to image data;
Produce n main separation and select the line signal, wherein respectively this main separation select the line signal in regular turn be in an opening when all the other main separations are selected line and are in a closed condition; And
When an address signal wherein, corresponding switch element and corresponding main separation are selected the line signal and all be in opening, produce a drive current and start the heating component that this is connected to this switch element.
29. ink gun nozzle according to claim 28 drives control method, wherein this k control signal can produce 2
kPlant state of a control with input control 2
kIndividual switch element.
30. ink gun nozzle according to claim 29 drives control method, wherein respectively this control signal produces a high potential to open one first switch or electronegative potential to open a second switch.
31. ink gun nozzle according to claim 30 drives control method, wherein this first switch has a transistor switch, and its grid receives the control signal of this high potential to open this transistor switch.
32. ink gun nozzle according to claim 30 drives control method, wherein this second switch is made up of a first transistor and a transistor seconds, when the grid of this transistor seconds receives the control signal of low-voltage, this transistor seconds is closed, and address signal flows into the grid of the first transistor to open this first transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100088466A CN1311974C (en) | 2004-03-24 | 2004-03-24 | Printing unit, ink jet head, ink jet head driving circuit and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100088466A CN1311974C (en) | 2004-03-24 | 2004-03-24 | Printing unit, ink jet head, ink jet head driving circuit and its control method |
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| Publication Number | Publication Date |
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| CN1672937A CN1672937A (en) | 2005-09-28 |
| CN1311974C true CN1311974C (en) | 2007-04-25 |
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| CNB2004100088466A Expired - Fee Related CN1311974C (en) | 2004-03-24 | 2004-03-24 | Printing unit, ink jet head, ink jet head driving circuit and its control method |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100448673C (en) * | 2005-12-31 | 2009-01-07 | 财团法人工业技术研究院 | Multi-mission spray printing system circuit and control circuit thereof |
| CN102442066B (en) * | 2010-09-30 | 2014-06-25 | 研能科技股份有限公司 | Ink jet unit set |
| CN102463753B (en) * | 2010-11-10 | 2014-01-08 | 研能科技股份有限公司 | Ink jetting unit group |
| CN102485486B (en) * | 2010-12-02 | 2014-09-10 | 研能科技股份有限公司 | Ink jet unit group |
| JP5909926B2 (en) * | 2011-08-29 | 2016-04-27 | セイコーエプソン株式会社 | Inkjet printing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4358775A (en) * | 1979-07-28 | 1982-11-09 | Ricoh Company, Ltd. | Ink jet printing apparatus |
| US6176569B1 (en) * | 1999-08-05 | 2001-01-23 | Lexmark International, Inc. | Transitional ink jet heater addressing |
| US6431677B1 (en) * | 2000-06-08 | 2002-08-13 | Lexmark International, Inc | Print head drive scheme |
| WO2002074545A1 (en) * | 2001-03-21 | 2002-09-26 | Olivetti I-Jet S.P.A. | Substrate for a thermal ink jet printhead, a colour printhead in particular, and ink jet printhead incorporation this substrate |
-
2004
- 2004-03-24 CN CNB2004100088466A patent/CN1311974C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4358775A (en) * | 1979-07-28 | 1982-11-09 | Ricoh Company, Ltd. | Ink jet printing apparatus |
| US6176569B1 (en) * | 1999-08-05 | 2001-01-23 | Lexmark International, Inc. | Transitional ink jet heater addressing |
| US6431677B1 (en) * | 2000-06-08 | 2002-08-13 | Lexmark International, Inc | Print head drive scheme |
| WO2002074545A1 (en) * | 2001-03-21 | 2002-09-26 | Olivetti I-Jet S.P.A. | Substrate for a thermal ink jet printhead, a colour printhead in particular, and ink jet printhead incorporation this substrate |
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| CN1672937A (en) | 2005-09-28 |
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