CN101274513B - Inkjet head structure - Google Patents
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- CN101274513B CN101274513B CN2007100917129A CN200710091712A CN101274513B CN 101274513 B CN101274513 B CN 101274513B CN 2007100917129 A CN2007100917129 A CN 2007100917129A CN 200710091712 A CN200710091712 A CN 200710091712A CN 101274513 B CN101274513 B CN 101274513B
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Abstract
本发明是一种喷墨头结构，用以进行多色墨水的喷墨打印，其包含：一芯片；三个轴线阵列的加热器，其设置于该芯片上且沿纵向延伸；以及三个并列设置的墨流道，其分别设置于每一该轴线阵列的该加热器间，其中，该芯片的长宽比是3.6～9.0；该供墨流道的宽度占该芯片的截面积比例区间是6.25％～10％。
The present invention is an inkjet head structure for inkjet printing of multi-color inks, which comprises: a chip; three axial arrays of heaters, which are arranged on the chip and extend in the longitudinal direction; and three parallel arranged ink flow channels, which are respectively arranged between the heaters in each of the axial arrays, wherein the aspect ratio of the chip is 3.6 to 9.0; the width of the ink supply flow channel accounts for a ratio of 6.25% to 10% of the cross-sectional area of the chip.
Description
Technical field
The invention relates to a kind of ink gun structure, refer to a kind of ink gun structure that is applicable to ink cartridges especially.
Background technology
At present common on the market printer is except that laser printer, and ink-jet printer is the machine that another kind is widely used, and it has advantages such as cheap, processing ease and low noise, and printable in like multiple ink-jet medium such as paper, photo papers.And the print quality of ink-jet printer depends primarily on the factors such as design of ink cartridges, especially disengages the important consideration factor that the ink gun mechanism design of ink droplet to ink-jet medium designs for ink cartridges with the control printing chip.
Generally speaking; Ink-jet printer mainly comes the combination results images printed at the pattern that the ad-hoc location of an array is printed independent point respectively by ink gun, and the position of independent point is to be determined and can be regarded as point in the linear array by want images printed.
Existing ink gun structure can comprise printing chip, heater and jet orifice plate; Wherein ink gun structure is to be assembled on the body of an ink cartridges; And heater is to be controlled by printing chip; Ink cartridges will provide ink to heater, make the triggering of the corresponding printing chip of heater heat ink, make the inner stored ink heating of ink cartridges and be injected on the ink-jet medium via the spray orifice of pairing jet orifice plate; As for, the control of ink droplet ink-jet time is corresponding to the pixel of want print pattern.
Usually ink cartridges is arranged at the inside of ink-jet printer; And above the ink-jet medium, carry out laterally mobile through the drive of a bearing system; Make the ink gun of ink cartridges to move to correct position and carry out ink-jet according to the pattern that will print; Be that bearing system makes between ink gun and the ink-jet medium along one scan axle generation relative motion; Wherein scan axis refers to the width that is parallel to the ink-jet medium, and the single sweep operation of driven unit means that bearing system drives ink gun and on the about whole width of ink-jet medium, moves once, yet between each time single sweep operation; The ink-jet medium will be with respect to ink gun along advancing perpendicular to a feed shaft of scan axis, promptly along the direction of ink-jet media length.
When will producing delegation when the scan axis ink-jet is moved, ink gun is interrupted lines; And all lines the combine literal or images of the pattern that is printing of being interrupted; Be called as as for print resolution and be interrupted the density of lines along ink-jet medium feed shaft along the feed shaft of ink-jet medium; Therefore it is big more to be interrupted the density of lines on ink-jet medium feed shaft, just high more along this print resolution.
Prior art is that the number through the heater that increases ink gun improves and is interrupted the density of lines along ink-jet medium advance shaft; To improve print resolution; Promote the speed of printing; Can reach the quickening print speed though increase the number of the heater of ink gun, numerous heaters can produce a large amount of heat energy makes the temperature of ink gun raise fast, not only can influence print quality and more possibly make whole ink gun damage.
One of settling mode that present industry develops out is to avoid the temperature of ink gun to raise fast through the size that increases ink gun; But; In inkjet printing with keen competition market; It is very quick that the price of ink-jet printer descends, and the size that increases ink gun will improve the cost of producing ink-jet printer, and subdues the market competitiveness.
And when the nozzle hole number of ink gun is many; Can ink gun be designed to sequence transmission to save the quantity in the head chip I/O (I/O); But because the control mode of the required driving heater of chip of ink-jet head is still for needing to combine address control and print data signal; But the design for address control in the existing chip of ink-jet head is when the number of the address that the control ink gun heats is n, and the position decoding device needs the corresponding n bar winding displacement that be provided with for being connected on the corresponding ink-jet driving circuit, for example; When the number of the address that the control ink gun heats is 20; The position decoding device needs correspondence that 20 winding displacements are set, and still along with the increase of heater number, existing design will increase area of chip; And the size of increase ink gun, the mode of therefore how to reduce address control is for saving a major issue of chip area.
Therefore, how to develop a kind of ink gun structure that improves above-mentioned prior art disappearance, real in pressing for the problem of solution at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of ink gun structure; To solve the following point of prior art: increase ink gun heater number and the size that increases ink gun will improve the cost of producing ink-jet printer; And the mode of existing address control will increase area of chip; And the size of increase ink gun etc.; Can realize high-resolution flying print, reduce cost because effectively utilize the ink gun space simultaneously, provide with light and cheap assembly and realize the high-performance printing.
For reaching above-mentioned purpose, of the present invention one implements the appearance attitude for a kind of ink gun structure is provided than broad sense, and in order to carry out the inkjet printing of multi-color ink, it comprises: a chip; The heater of three axis arrays, it is arranged on this chip and extends longitudinally; And three ink supply runners that are set up in parallel, it is arranged at respectively between this heater of each this axis array, and the spacing distance of adjacent two ink supply runners is 1.27 millimeters; One control circuit, it receives clock signal, odd address data-signal, even address data-signal, address signal, gating signal, heating signal and preheating signal; Wherein, the length-width ratio of this chip is 3.6～9.0; The sectional area ratio interval that the width of this ink supply runner accounts for this chip is 10%～11.33%.
According to above-mentioned conception; Wherein ink gun structure also includes the address control circuit that receives the tandem address signal that an ink-jet controlling circuit exports at least; Address control circuit includes string and the address signal converter and two that convert the tandem address signal that receives to two groups of address signals outputs arranged side by side and receives the output signal of this string and address signal converter and the address decoder of decoding respectively, impel two address decoders form M * N row signal conveys arranged side by side to have with and the ink-jet driving circuit of heater in as the ink-jet control signal.
The heater of each the axis array that is provided with on the chip of ink-jet head of the present invention and corresponding spray orifice are arranged at least 2 parallel row, and each row is to be staggered or to squint with respect to adjacent row, so that the coverage littler than noninterlace arranged to be provided.
Of the present invention another implemented the appearance attitude for a kind of ink gun structure is provided than broad sense, and in order to carry out the inkjet printing of monochromatic ink, it comprises: a chip; A plurality of heaters, it is arranged on this chip, and this heater is that the edge is parallel to each other and spaced axis is arranged at least 2 axis groups; One central ink supply runner, it is arranged between these a plurality of heaters of these 2 axis groups at least; One control circuit, it receives clock signal, odd address data-signal, even address data-signal, address signal, gating signal, heating signal and preheating signal; Wherein, the length-width ratio of this chip is 9.0～12.5; The sectional area ratio that the width of this central authorities' ink supply runner accounts for this chip is 6.25%, and length is 21.24 millimeters, and width is 0.175 millimeter.
Ink gun structure of the present invention is used for realizing that the mode of high-resolution and flying print is through increasing the quantity of heater, and heater on the same group is staggered, and makes heater with high-frequency operation.
Description of drawings
Fig. 1 is the structural representation that is applicable to the bearing system that ink-jet printer is inner of preferred embodiment of the present invention.
Fig. 2 (a) is the structural representation of the monochrome ink gun of the present invention's first preferred embodiment.
Fig. 2 (b) is the structural representation after Fig. 2 (a) removes spray nozzle sheet.
Fig. 3 (a) is the structural representation of the color ink gun of the present invention's the 3rd preferred embodiment.
Fig. 3 (b) is the structural representation after Fig. 3 (a) removes spray nozzle sheet.
Fig. 3 (c) is the structural representation after Fig. 3 (a) removes the part spray nozzle sheet.
Fig. 4 is the syndeton sketch map by the ink-jet controlling circuit of ink-jet printer and chip of ink-jet head.
Fig. 5 (a) is the electrical block diagram of chip of ink-jet head shown in Figure 4.
Fig. 5 (b) is the C circuit structure for amplifying sketch map partly of Fig. 5 (a).
The specific embodiment
Some exemplary embodiments that embody characteristic of the present invention and advantage will be described in detail in the explanation of back segment.Be understood that the present invention can have various variations on different aspects, its neither departing from the scope of the present invention, and explanation wherein and to be shown in be the usefulness of being used as explanation in essence, but not in order to restriction the present invention.
Ink gun structure of the present invention is mainly arranged a large amount of spray orifices on the ink gun through staggered mode; With the size of dwindling ink gun and with less scanning and printing number of times higher print resolution is provided; Can improve the effective spray orifice density of ink-jet medium on feed shaft so that high-resolution print speed to be provided, and then make the ink-jet printer of ink gun structure of the present invention applicable to relatively low cost.
See also Fig. 1; It is the structural representation that is applicable to the bearing system that ink-jet printer is inner of preferred embodiment of the present invention; As shown in the figure; Bearing system 1 mainly is used for supporting ink gun 111 structures of the present invention, wherein, and the power supply 121 that bearing system 1 can comprise carrier 112, controller 113, first CD-ROM drive motor 116, positioner 117, second CD-ROM drive motor 119, paper feeding structure 120 and whole bearing system 1 running energy is provided.
Carrier 112 mainly is used for ccontaining ink gun 111 and one of which end and is connected with first CD-ROM drive motor 116; Move in scan axis 115 direction upper edge straight paths in order to drive ink gun 111; Ink gun 111 can be to be installed in replaceably or forever on the carrier 112; And controller 113 is connected with carrier 112, controls signal on the ink gun 111 in order to transmission.
First CD-ROM drive motor 116 can be a stepper motor; But not as limit, it is to move carrier 112 according to the control signal that positioner 117 is transmitted along scan axis 115, and positioner 117 then is to confirm the position of carrier 112 in scan axis 115 through holder 118; In addition; Positioner 117 also can be used to control 119 runnings of second CD-ROM drive motor, to drive ink-jet medium 122, for example: paper; And between the paper feeding structure 120, and then ink-jet medium 122 can be moved along feed shaft 114 directions.
When ink-jet medium 122 are confirmed the location in print area (not shown) after; First CD-ROM drive motor 116 will make carrier 112 and ink gun 111 move and print at ink-jet medium 122 upper edge scan axises 115 under the driving of positioner 117; In carry out once on the scan axis 115 or repeatedly scanning after; Positioner 117 will be controlled 119 runnings of second CD-ROM drive motor; To drive between ink-jet medium 122 and the paper feeding structure 120, ink-jet medium 122 can be moved along feed shaft 114 directions, be placed in the print area with another zone ink-jet medium 122; First CD-ROM drive motor 116 moves at ink-jet medium 122 upper edge scan axises 115 and carries out another line printing and will drive carrier 112 and ink gun 111 again; Repeat to all print datas always and all print to 122 last times of ink-jet medium, ink-jet medium 122 will be pushed out on the output bracket (not shown) of ink-jet printer, print action to accomplish.
See also Fig. 2 (a), it is the structural representation of the monochrome ink gun of the present invention's first preferred embodiment.Wherein the ink gun 2 shown in Fig. 2 (a) is the structural representations after the simplification, and in present embodiment, ink gun 2 is strip structure and comprises chip 21, electric connecting sheet 22 and spray nozzle sheet 23; Wherein, Have a plurality of heaters 25 (shown in Fig. 2 (b)) on chip 21 surfaces, and comprise a plurality of spray orifices 24 on the spray nozzle sheet 23, in present embodiment corresponding to heater 25; The quantity of spray orifice 24 can be 1000, but not as limit.
In present embodiment; The combined nozzle resolution ratio of ink gun 2 can be 1200 dpi (dots per inch)s (dpi); Promptly the effective ink-jet distance along axis of reference L measurement ink gun 2 is 1/1200 inch, and axis of reference L is consistent with feed shaft 114 directions of ink-jet medium 122 shown in Figure 1.
In order to realize high-resolution effect, the spray orifice 24 on the ink gun 2 can be arranged as 2 axis groups, representes with I and II among the figure; And each axis group I and II all have a center line 26; Two center lines 26 are settings parallel to each other and all parallel with axis of reference L, and the spray orifice 24 among each axis group I and the II is staggered with respect to spray orifice 24 among other axis group I or the II and axis of reference L, and the axial line distance of each axis shaft I or II is P; And the coverage that whole two axis group I and II combine with respect to axis of reference L is P/2; The distance that is 24 of two spray orifices of same center line 26 is P, and the vertical range that adjacent two spray orifices of different center line 26 are 24 is P/2, and P can be 1/600 inch in present embodiment; P/2 is 1/1200 inch, but not as limit.
See also Fig. 2 (b), it is the structural representation after Fig. 2 (a) removes spray nozzle sheet, and is as shown in the figure; The chip 21 of the ink gun 2 of present embodiment can be a rectangular configuration; Its length-width ratio is to be good with 9.0～12.5 interval, and in present embodiment, the width W d1 of chip 21 is about 2.8 millimeters (mm); Length L d1 is about 25.4 millimeters (mm), and the gross area is 71.12 square millimeters of (mm
2), length-width ratio is 9.0, therefore ink gun 2 of the present invention every square millimeter of (mm on spray nozzle sheet 23
2) be provided with approximately
Individual spray orifice 24 (shown in Fig. 2 (a)), and be arranged on the chip 21 heater 25 with ink with in the spray orifice 24 that is arranged as two staggered rows the ejection, in heater 25 length overall Lr1 be 5/6 inch each the row in 500 spray orifices 24 are arranged.
Please consult Fig. 2 (b) again; Have the central ink supply runner 27 of 1 strip and the heater 25 that is arranged at central ink supply runner 27 dual-sides respectively on the surface of chip 21; In addition; One side of central authorities' ink supply runner 27 comprises first longitudinal edge 271 of arranging I group heater 25, and another side then comprises second longitudinal edge 272 of arranging II group heater 25.
In present embodiment; The width S d1 of central authorities' ink supply runner 27 can be 0.175 millimeter (mm); Length L s1 can be 21.24 millimeters (mm), and the A-A sectional area ratio that the width of central ink supply runner 27 accounts for chip 21 is: Sd1/Wd1=0.175mm/2.8mm=6.25%.
The heater 25 of central authorities' ink supply runner 27 dual-sides can be arranged as 2 row's axis groups respectively along the first axle and second axis; Represent with I and II among the figure, and the heater of axis group I and II is the setting that is staggered each other that the distance that same row's adjacent two heaters are 25 is P; The vertical range that different rows' adjacent two heaters are 25 is P/2; P can be 1/600 inch in present embodiment, and P/2 is 1/1200 inch, but not as limit.
Because heater 25 is arranged on ink gun 2 chips 21 of highly compact, so 25 density of the heater on the chip 21 will have every square millimeter of (mm at least
2) 10 heaters, so that the cost of ink gun 2 is lower than the ink gun 2 that other has less spray orifice 24.In an embodiment, every square millimeter of (mm on the chip 21
2) can have 13.5～19.9 heaters, promptly the quantity of heater is approximately between 960 to 1415 interval.And being heater 25 sums, preferred values is about 1000, so every square millimeter of (mm on the chip of the present invention 21
2) heater 25 density be about
As for 25 density of the heater on the aforementioned calculation chip 21 is that area with central ink supply runner 27 adds calculating together.
Generally speaking; In order to make lightweight ink droplet can keep flying print; Heater 25 needs with very high frequency running, and ink gun 2 of the present invention combines the mode of the staggered heater 25 of high density that high-resolution flying print is provided through high injection frequency, and the injection frequency that the heater 25 of ink gun 2 of the present invention uses surpasses 20 KHzs; Preferable frequency range is 22 KHz to 26 KHzs, and present embodiment is the operating frequency running with 24 KHzs.
See also Fig. 3 (a), it is the structural representation of the color ink gun of the present invention's the 3rd preferred embodiment.Wherein the ink gun 3 shown in Fig. 3 (a) is the structural representations after the simplification; In present embodiment; Ink gun 3 is a strip structure and the heater 35 that comprises chip 31, electric connecting sheet 32, spray nozzle sheet 33 and three axis arrays 34 (shown in Fig. 3 (b)); And comprise a plurality of spray orifices 331 on the spray nozzle sheet 33, mainly carry out the colour print of multiple tracks, and can be less than or equal to the spacing of axis spray orifice in the dot spacing of ink-jet medium axis through certain print resolution corresponding to heater 35.
See also Fig. 3 (b) and Fig. 3 (c); Wherein Fig. 3 (b) its be the structural representation after Fig. 3 (a) removes spray nozzle sheet; It is the structural representation after Fig. 3 (a) removes the part spray nozzle sheet for Fig. 3 (c); As shown in the figure, the lip-deep heater 35 of the chip 31 of the ink gun 3 of present embodiment is arranged to along the axis array 34 of axis of reference L extension, and relative reference axis L is horizontal or side direction is isolated each other; In addition; Also have three ink supply runners 36 parallel on the chip 31, mainly be used for transmitting the ink of different colours, and the vertical direction of relative reference axis L is separated side by side each other with axis of reference L; And then the ink of different colours is provided for the heater 35 of three corresponding axis arrays 34; Each axis array 34 can be arranged at 35 directions of forming and all being parallel to axis of reference L of homochromy ink heater of ink supply runner 36 dual-sides by 2 rows, and is arranged at the dual-side of ink supply runner 36 with staggered mode between 2 row's heaters 35, so have 2 rows * 3 looks=6 rows' heater row number on the chip 31 of present embodiment.
In present embodiment; Can comprise 600 or more heater 35 in each axis array 34, promptly each row's heater 35 can be made up of 35 of 300 heaters, so the sum of heater 35 can be 1800; And the distance of 35 of same row and two adjacent heaters is P in each axis array 34; The vertical range that different rows' adjacent two heaters are 35 is P/2, and P can be 1/600 inch in present embodiment, and P/2 is 1/1200 inch.
In certain embodiments, the distance of 35 of same row and two adjacent heaters can be 1/600～1/1200 inch in each axis array 34, and the vertical range that different rows' adjacent two heaters are 35 can be 1/1200～1/2400 inch.
The chip 31 of the ink gun 3 of present embodiment can be a rectangular configuration, and its length-width ratio is to be good with 3.6～9.0 interval, and the width W d2 of chip 31 is about 4.5 millimeters (mm), and length L d2 is about 16 millimeters (mm), and the gross area is 72 square millimeters of (mm
2), length-width ratio is Ld2/Wd2=16/4.5=3.6, and between the density region of chip 31 upper heaters 35 with every square millimeter of (mm
2) 20.1～30.0 be good, each row's heater 35 length overall Lr2 are about 1/2 inch, heater 35 sums are about 1800, so every square millimeter of (mm on the chip of the present invention 31
2) heater 35 density be about 1800/ (16 * 4.5)=25.
In addition; The width S d2 of each ink supply runner 36 can be 0.15 millimeter (mm); Length L s2 can be 12.8 millimeters (mm); Therefore and the spacing Cd of adjacent two ink supply runners 36 can be 1.27 millimeters (mm), and the overall width of three ink supply runners 36 accounts for the B-B sectional area ratio of chip 31 and is: (Sd2/Wd2) * and 3=(0.15mm/4.5mm) * 3=10%.Among other embodiment; The spacing Cd of adjacent two ink supply runners 36 can be 1.27 millimeters (mm); Width S d2 interval can be 0.17mm; Can cooperate that each ink supply runner 36 width S d2 is interval to be 0.15mm～0.17mm, and each ink supply runner 36 length L s2 interval is 12 millimeters (mm)～22 millimeter (mm), the B-B sectional area ratio interval that the overall width of three ink supply runners 36 accounts for chip 31 can be 10%～11.33%.
In another embodiment; The heater row number that can have 6 rows on the chip 31 equally, but the sum of heater can be 2000～3000, and the width W d2 of chip 31 can be 2.5 millimeters～3.5 millimeters (mm); Length L d2 can be 12.7 millimeters～25.4 millimeters (mm); The gross area is 31.75 square millimeters～88.9 square millimeters (mm2), and length-width ratio is 3.6～10, and between the density region of chip 31 upper heaters 35 with every square millimeter of (mm
2) 31～90 be good, each row's heater 35 length overall Lr2 are about 1/2 inch, so every square millimeter of (mm on the chip 31
2) heater 35 density be about (2000/88.9)～(3000/31.75), promptly 22.4～94.5.As for 35 density of the heater on the aforementioned calculation chip 31 is that area with ink supply runner 37 adds calculating together.
Ink gun of the present invention is except coming on chip, to be provided with more heater effectively to utilize the ink gun space and reduce cost and to improve the print speed through staggered mode; Also can reach the reduction chip area through the address control mode of reduction ink gun inside chip; The size of ink gun is dwindled relatively, and then reduce the cost of producing ink-jet printer.
See also Fig. 4, it is the syndeton sketch map by the ink-jet controlling circuit of ink-jet printer and chip of ink-jet head.As shown in the figure; Ink-jet controlling circuit 41 will transmit clock signal (clock), odd address data-signal (Data_odd), even address data-signal (Data_even), address signal (address), gating signal (strobe), heating signal (Main fire when ink-jet printer (not shown) operates; MF) and preheating signal (Preheat fire; PF) to chip of ink-jet head 42 ends, to control the running of whole ink gun.
Wherein clock signal is the foundation of control signal input chip of ink-jet head 42; Odd address data-signal and even address data-signal are the print data that is input to chip of ink-jet head 42; Address signal is the position signalling that is input to chip of ink-jet head 42; In order to drive the heater circuit that need carry out inkjet printing; The signal that gating signal is lived for control chip of ink-jet head 42 signal breech lock (latch) that ink-jet controlling circuit 41 is imported into, heating signal are to make the heater circuit spray printing of ink gun go out the signal of ink droplet, and the preheating signal is to let the signal of ink gun preheating.
See also Fig. 5 (a) and Fig. 5 (b); Wherein Fig. 5 (a) is the electrical block diagram of chip of ink-jet head shown in Figure 4; Fig. 5 (b) is the C circuit structure for amplifying sketch map partly of Fig. 5 (a); Shown in Fig. 5 (a); Because ink-jet controlling circuit 41 is lost in order to prevent the data-signal that is sent to chip of ink-jet head 42; And data-signal is divided into the odd address data-signal and the even address data-signal is sent to respectively in the chip of ink-jet head 42; So the internal circuit of chip of ink-jet head 42 is divided into, and 2 parts come to receive respectively odd address data-signal and even address data-signal and other corresponding circuit of arranging in pairs or groups carries out the ink-jet running; First partly for receiving odd address data-signal (like left side part of Fig. 5 (a)) and by first string and data-signal converter (ser 2par_odd) 4211, first string and address signal converter (ser 2par_address) 4221, the first main address decoder (MA) 4231, address decoder (SA) 4241, first buffer (Fire Buffer, FB) 4251 and 426 compositions of ink-jet driving circuit of constituting a plurality of groups circuit blocks (Bank) for the first time.
As for; Second partly then is to be used for receiving even address data-signal (like right-hand part part of Fig. 5 (a)) and by second string and data-signal converter (ser 2par_even) 4212, second string and address signal converter (ser2par_address) 4222, the second main address decoder (MA) 4232, address decoder (SA) 4242, second buffer (Fire Buffer for the second time; FB) 4252 and the ink-jet driving circuit 426 that constitutes a plurality of groups circuit blocks (Bank); Because first partly comes down to similar with the circuit framework of second part; Discrepancy only is that first string and data-signal converter 4211 and second are gone here and there and 4212 data-signals that receive respectively of data-signal converter are odd address or even address; Therefore will only explanation partly be proposed below with first; The left side part circuit that promptly receives the odd address data-signal is an example, and right-hand part part circuit of dual numbers address data signal no longer.
Please consult Fig. 5 (b) again; First string and data-signal converter 4211 are to receive clock signal (clock), odd address data-signal (Data_odd) and the gating signal (strobe) that ink-jet controlling circuit 41 is exported; And will be originally for the odd address data-signal of tandem input be converted into via od0～od14 winding displacement output totally 15 parallel data signal export; First string and address signal converter 4221 then are to receive clock signal (clock), address signal (address) and the gating signal (strobe) that ink-jet controlling circuit 41 is exported; And will be originally for the address signal of tandem input be converted into via m0～m2 and S0～S1 winding displacement output totally 5 address signal arranged side by side export; The signal that wherein m0～m2 exported is to be sent to the first main address decoder 4231 and through decoding and by the address signal arranged side by side of 5 of winding displacement MA0～MA4 output, and the signal of being exported as for winding displacement S0～S1 is to be sent to address decoder 4241 for the first time and through decoding and by the address signal arranged side by side of 4 of winding displacement SA0～SA3 output.
And each ink-jet driving circuit 426 mainly comprises and door 4261, electric potential transfer circuit, driving transistors 4263 and heater R; Have 3 branch connecting pin MA_X, SA_Y and Data_Z with door 4261; MA_X be connected to winding displacement MA0～MA4 one of them; SA_Y be connected to winding displacement SA0～SA3 one of them; Data_Z then be connected to winding displacement od0～od14 one of them, will receive the first main address decoder 4231 and the address signal arranged side by side exported of address decoder 4241 for the first time with door 4261, and the odd address data-signal that transmitted of first string and data-signal converter 4211; And carry out a multiplier logic computing to export an operation result, i.e. high potential signal (high) or low-potential signal (low).
As for; Electric potential transfer circuit can be a booster circuit (L-＞H circuit) 4262; It is and is connected with door 4261 and with first buffer 4251, in order to receiving heating signal (MF) and the preheating signal (PF) that the operation result exported with door 4261 and first buffer 4251 are exported, when the operation result of being exported with door 4261 is low-potential signal; Booster circuit 4262 is with selective reception preheating signal (PF); And convert preheating signal (PF) to high potential signal by electronegative potential, and mainly be used for triggering driving transistors 4263 conductings, will transmit one simultaneously and print voltage (HV) to heater R; The temperature of heater R will raise thus, make part ink and ink gun be preheated to a specified temp.
Otherwise when the operation result of being exported with door 4261 was high potential signal, booster circuit 4262 was with selective reception heating signal (MF); And convert heating signal to high potential signal by electronegative potential; Mainly be used for triggering driving transistors 4263 conductings, will transmit one simultaneously and print voltage (HV) to heater R, the temperature of heater R will raise thus; So that the ink heating is produced bubble, ink is sprayed onto on the ink-jet medium.
426 of ink-jet driving circuits that wherein comprised in the circuit blocks of each group (Bank) correspond to a data winding displacement; Be winding displacement od0～od14 one of them; And the quantity of ink-jet driving circuit 426 is the quantity that is equal to address signal; In chip of ink-jet head 42 of the present invention, mainly address signal is divided into main address signal and inferior address signal; Be that prior art uses single address decoder to carry out the decoding of address signal; And the present invention simultaneously through the first main address decoder 4231 and for the first time address decoder 4241 carry out, wherein main address signal is responsible for M position, inferior address signal is responsible for N; M and N are natural number, impel the first main address decoder 4231 and for the first time address decoder 4241 form in M * N row signal conveys arranged side by side to the ink-jet driving circuit 426 that has with door 4261 and heater R as the ink-jet control signal.
Main address signal is responsible for 5 positions in present embodiment, and inferior address signal is responsible for 4 positions, and main address signal is 5 address signals arranged side by side that the first main address decoder 4231 is exported via winding displacement MA0～MA4; Be M=5; Inferior address signal for the first time i.e. 4 address signals arranged side by side being exported via winding displacement SA0～SA3 of address decoder 4241, i.e. N=4, main address signal and inferior address signal via with can produce after door 4261 multiplies each other identical with address sum originally; Be M * N=5 * 4=20; Can solve that prior art need be provided with 20 winding displacements and the problem that increases chip layout (layout) size, and then reach the area space of the shared chip of ink-jet head of reduction winding displacement, reach the reduction chip area; The size of ink gun is dwindled relatively, and then reduce the cost of producing ink-jet printer.
See also down tabulation one, it is the address signal arranged side by side that m0～m2 winding displacement is input to the first main address decoder 4231, and S0～S1 winding displacement is input to the address signal arranged side by side of address decoder 4241 for the first time, the corresponding tables of corresponding 20 addresses that solve:
| Corresponding address | m0～m2 | S0～ |
| 1 | 000 | 00 |
| 2 | 000 | 01 |
| 3 | 000 | 10 |
| 4 | 000 | 11 |
| 5 | 001 | 00 |
| 6 | 001 | 01 |
| 7 | 001 | 10 |
| 8 | 001 | 11 |
| 9 | 010 | 00 |
| 10 | 010 | 01 |
| 11 | 010 | 10 |
| 12 | 010 | 11 |
| 13 | 011 | 00 |
| 14 | 011 | 01 |
| 15 | 011 | 10 |
| 16 | 011 | 11 |
| 17 | 100 | 00 |
| 18 | 100 | 01 |
| 19 | 100 | 10 |
| 20 | 100 | 11 |
Table one
Certainly the winding displacement number that the above-mentioned first main address decoder 4231 and the first time, address decoder 4241 was exported does not exceed with M=5 and N=4; Can demand adjust; For example, when the control address number was 16, the winding displacement number of the first main address decoder 4231 can be M=4; And address decoder 4241 is maintained N=4 equally for the first time, M * N=4 * 4=16 after both multiply each other.
In sum; Ink gun structure of the present invention mainly comes on chip, to be provided with more heater effectively to utilize the ink gun space and reduce cost and to improve outside the print speed through staggered mode; Also can replace existing single address decoder through main address decoder and time address decoder; The layout winding displacement area of reduction ink gun inside chip dwindles the size of ink gun with the reduction chip area relatively, and then reduces the cost of producing ink-jet printer.Therefore, ink gun structure of the present invention has the value of industry.
Claims (8)
1. ink gun structure, in order to carry out the inkjet printing of multi-color ink, it comprises:
One chip;
The heater of three axis arrays, it is arranged on this chip and extends longitudinally; And
Three ink supply runners that are set up in parallel, it is arranged at respectively between this heater of each this axis array, and the spacing distance of adjacent two ink supply runners is 1.27 millimeters; And
One control circuit, it receives clock signal, odd address data-signal, even address data-signal, address signal, gating signal, heating signal and preheating signal;
Wherein, the length-width ratio of this chip is 3.6～9.0; The sectional area ratio interval that the width of this ink supply runner accounts for this chip is 10%～11.33%; This control circuit also include one receive a string column address signal that an ink-jet controlling circuit exports at least address control circuit; This address control circuit include one convert the tandem address signal that receives to two groups of address signals outputs arranged side by side string and address signal converter and two receive the output signal of this string and address signal converter and the address decoder of decoding respectively, impel these two address decoders form M * N row signal conveys arranged side by side to have one with and the ink-jet driving circuit of a heater in as the ink-jet control signal.
2. ink gun structure according to claim 1, the width that it is characterized in that each this ink supply runner are 0.15 millimeter.
3. ink gun structure according to claim 2, the width that it is characterized in that this chip are 4.5 millimeters, and the sectional area ratio that the overall width of this ink supply runner accounts for this chip is (0.15mm/4.5mm) * 3=10%.
4. ink gun structure according to claim 1, the width that it is characterized in that each this ink supply runner are 0.17 millimeter.
5. ink gun structure according to claim 1, the width interval that it is characterized in that each this ink supply runner is 0.15～0.17 millimeter.
6. ink gun structure according to claim 1, the length that it is characterized in that each this ink supply runner are 12.8 millimeters.
7. ink gun structure according to claim 1, the length of interval that it is characterized in that each this ink supply runner are 12 millimeters～22 millimeters.
8. ink gun structure, in order to carry out the inkjet printing of monochromatic ink, it comprises:
One chip;
A plurality of heaters, it is arranged on this chip, and this heater is that the edge is parallel to each other and spaced axis is arranged at least 2 axis groups;
One central ink supply runner, it is arranged between these a plurality of heaters of these 2 axis groups at least;
One control circuit, it receives clock signal, odd address data-signal, even address data-signal, address signal, gating signal, heating signal and preheating signal;
Wherein, the length-width ratio of this chip is 9.0～12.5; The sectional area ratio that the width of this central authorities' ink supply runner accounts for this chip is 6.25%, and the length of central ink supply runner is 21.24 millimeters, and width is 0.175 millimeter;
This control circuit also include one receive a string column address signal that an ink-jet controlling circuit exports at least address control circuit; This address control circuit include one convert the tandem address signal that receives to two groups of address signals outputs arranged side by side string and address signal converter and two receive the output signal of this string and address signal converter and the address decoder of decoding respectively, impel these two address decoders form M * N row signal conveys arranged side by side to have one with and the ink-jet driving circuit of a heater in as the ink-jet control signal.
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| CN2007100917129A CN101274513B (en) | 2007-03-29 | 2007-03-29 | Inkjet head structure |
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| CN2007100917129A CN101274513B (en) | 2007-03-29 | 2007-03-29 | Inkjet head structure |
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| CN101274513B true CN101274513B (en) | 2012-08-08 |
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| CN102689513B (en) * | 2011-03-23 | 2015-02-18 | 研能科技股份有限公司 | Inkjet head structure |
| CN103625111B (en) * | 2012-08-27 | 2016-09-28 | 研能科技股份有限公司 | Page Wide Inkjet Printing Device |
| EP3099492B1 (en) | 2014-01-31 | 2021-03-03 | Hewlett-Packard Development Company, L.P. | Interdigitated primitives |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW225009B (en) * | 1992-10-06 | 1994-06-11 | Mitsuta Industry Co Ltd | Paper feeding device of an ijage forming apparatus |
| CN1302731A (en) * | 1999-12-22 | 2001-07-11 | 佳能株式会社 | Liquid injection recording head and device for liquid injection recording |
| CN1338378A (en) * | 2000-08-16 | 2002-03-06 | 惠普公司 | Small and high performance and density ink jet nozzle |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW225009B (en) * | 1992-10-06 | 1994-06-11 | Mitsuta Industry Co Ltd | Paper feeding device of an ijage forming apparatus |
| CN1302731A (en) * | 1999-12-22 | 2001-07-11 | 佳能株式会社 | Liquid injection recording head and device for liquid injection recording |
| CN1338378A (en) * | 2000-08-16 | 2002-03-06 | 惠普公司 | Small and high performance and density ink jet nozzle |
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