CN101274515B - Monochrome ink gun structure - Google Patents
Monochrome ink gun structure Download PDFInfo
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- CN101274515B CN101274515B CN 200710091710 CN200710091710A CN101274515B CN 101274515 B CN101274515 B CN 101274515B CN 200710091710 CN200710091710 CN 200710091710 CN 200710091710 A CN200710091710 A CN 200710091710A CN 101274515 B CN101274515 B CN 101274515B
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Abstract
The invention relates to an inkjet head structure which is used for inkjet printing with self-colored ink, comprising a chip and a plurality of heaters which are arranged on the chip with the density which is higher than the density of 14 heaters per square millimeter (mm2), furthermore, the heaters are arrayed to form at least two axis assemblies along the parallel axes with intervals.
Description
Technical field
The invention relates to a kind of ink gun structure, espespecially a kind of monochrome ink gun structure that is applicable to ink cartridges.
Background technology
At present common printer is except laser printer on the market, and ink-jet printer is the machine that another kind is widely used, and it has the advantages such as cheap, processing ease and low noise, and printable in such as multiple ink-jet media 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 ink droplet to the ink gun mechanism design of ink-jet media designs for ink cartridges with the control printing chip.
Generally speaking, ink-jet printer is mainly printed the image that the pattern of independent point comes combination results to print at the ad-hoc location of an array respectively by ink gun, and the position of independent point is determined and can be seen as a point in the linear array by the image that will print.
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, so that the triggering of the corresponding printing chip of heater is heated ink, so that the inner stored ink heating of ink cartridges and be injected on the ink-jet media via the spray orifice of corresponding 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 the inside that is arranged at ink-jet printer, and above the ink-jet media, carry out transverse shifting by the drive of a bearing system, so that can moving to correct position according to the pattern that will print, the ink gun of ink cartridges carries out ink-jet, be bearing system so that produce relative motion along the one scan axle between ink gun and the ink-jet media, wherein scan axis refers to the width that is parallel to the ink-jet media, and the single sweep operation of driven unit means that bearing system drives ink gun and moves once on the about whole width of ink-jet media, yet between each time single sweep operation, the ink-jet media will be with respect to ink gun along advancing perpendicular to a feed shaft of scan axis, namely 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, literal or the image of the pattern that is printing and all interruption lines combine, be called as for the print resolution along the feed shaft of ink-jet media and be interrupted lines along the density of ink-jet media feed shaft, therefore it is larger to be interrupted the density of lines on ink-jet media feed shaft, just higher along the print resolution of this axle.
Existing technology is that the number by the heater that increases ink gun improves and is interrupted lines along the density of ink-jet media advance shaft, to improve print resolution, promote the speed of printing, can reach the quickening print speed although increase the number of the heater of ink gun, the temperature of ink gun raises fast but numerous heaters can produce a large amount of heat energy, and not only can affect print quality also may be so that the damage of whole ink gun.
One of settling mode that present industry develops out is to avoid the temperature of ink gun to raise fast by 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, 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, ink gun can 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 still is need to be in conjunction with 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, the position decoding device needs the corresponding n bar winding displacement that arranges 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, but the increase along with the heater number, existing design will increase the area of chip, and the size of increase ink gun, the mode of therefore how to reduce address control is a major issue of saving chip area.
Therefore, how to develop a kind of monochrome ink gun structure that improves above-mentioned existing techno-absence, real is present problem in the urgent need to address.
Summary of the invention
Main purpose of the present invention is to provide a kind of monochrome 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 the area of chip, and the problems such as size of increase ink gun.
For reaching above-mentioned purpose, of the present invention one implements the sample 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: chip; And a plurality of heaters, it is with greater than every square millimeter of (mm
2) density of 14 heaters is arranged on this chip, and this heater be along be parallel to each other and spaced axis be arranged at least 2 axis groups wherein the length-width ratio interval of this chip be 9.0～12.5.
According to above-mentioned conception, wherein ink gun structure also includes the address control circuit that receives at least the tandem address signal that an ink-jet controlling circuit exports, address control circuit includes the tandem address signal that will receive and converts the string of two groups of address signals outputs arranged side by side and address signal converter and two to and receive respectively the output signal of this string and address signal converter and the address decoder of being decoded, and impels two address decoders to form M * N and arranges signal arranged side by side and be delivered in the ink-jet driving circuit that has with door and heater as the ink-jet control signal.
Of the present invention another implemented the sample attitude for an ink gun structure is provided than broad sense, and in order to carry out the inkjet printing of monochromatic ink, it comprises: chip; And at least 1000 heaters, it is to be arranged on the chip; Wherein at least 1000 heaters are to arrange a plurality of heaters that form the first axle group along first axle, and arrange a plurality of heaters that form the first axle group along the second axis, and are to be staggered between a plurality of heaters of first axle group and the second axis group; Wherein the length-width ratio interval of this chip is 9.0～12.5.
The density of the heater that arranges on the chip of ink-jet head of the present invention surpasses every square millimeter of (mm
2) 14 heaters and comprise at least 1000 spray orifices, heater and corresponding spray orifice are arranged at least 2 parallel row, and every delegation is to be staggered or to be offset with respect to adjacent row, so that the coverage less than noninterlace arranged to be provided.
By heater is staggered on ink gun, can reduce the printing cost with high density heater ink gun, arrange that in order to realize highdensity heater at chip the present invention includes a kind of purpose of utilizing the quantity that reduces the address winding displacement to reach the reduction chip area in addition.
Ink gun structure of the present invention, comprise that this chip of a chip has an address control circuit, receive the serial data signal that ink-jet controlling circuit is exported, the tandem address signal, heating signal and pre-thermal signal, and have string and data-signal converter and a plurality of ink-jet driving circuit, string and data-signal converter receive the serial data signal, and convert parallel data signal output to and a plurality of ink-jet driving circuit has respectively and door and heater, address control circuit comprises: string and address signal converter, it receives the tandem address signal, and converts the first address signal arranged side by side and the output of the second address signal to; Main address decoder, it is connected with the first string and address signal converter, in order to the first address arranged side by side signal decoding is become the 3rd address signal arranged side by side; Inferior address decoder, it is connected with the first string and address signal converter, in order to the second address arranged side by side signal decoding is become the 4th address signal arranged side by side; A plurality of ink-jet driving circuits wherein, it is connected with string and data-signal converter, main address decoder and time address decoder, and have respectively and door and heater, in order to receive the parallel data signal one of them, the 3rd address signal arranged side by side one of them, the 4th address signal arranged side by side one of them and heating signal and this pre-thermal signal; And with door receive the 3rd address signal arranged side by side one of them, the 4th address signal arranged side by side one of them and parallel data signal one of them carrying out a multiplier logic computing and to export an operation result, make the corresponding heater mutually should operation result and the control of heating signal or pre-thermal signal and operating.
Ink gun of the present invention can be realized high-resolution flying print, reduces cost because effectively utilize the ink gun space simultaneously, provides with light and cheap assembly and realizes the high-performance printing.Ink gun structure of the present invention is used for realizing that the mode of high-resolution and flying print is by 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 of the bearing system that is applicable to ink-jet printer inside of preferred embodiment of the present invention.
Fig. 2 (a) is the structural representation of the monochrome ink gun of the present invention's the 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 polychromatic 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 schematic diagram 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 circuit structure for amplifying schematic diagram of the C part of Fig. 5 (a).
The specific embodiment
Some exemplary embodiments that embody feature ﹠ benefits of the present invention will be described in detail in the explanation of back segment.Be understood that the present invention can have in different aspects various variations, its neither departing from the scope of the present invention, and explanation wherein and to be shown in be when the usefulness that explain in essence, but not in order to limit the present invention.
Ink gun structure of the present invention is mainly arranged a large amount of spray orifices on the ink gun by staggered mode, provide higher print resolution with the size of dwindling ink gun and with less scanning and printing number of times, can improve the effective spray orifice density of ink-jet media on feed shaft so that high-resolution print speed to be provided, and then so that ink gun structure of the present invention applicable to the ink-jet printer of relatively low cost.
See also Fig. 1, it is the structural representation of the bearing system that is applicable to ink-jet printer inside of a preferred embodiment of the present invention, as shown in the figure, bearing system 1 is mainly used to support ink gun 111 structures of the present invention, wherein, bearing system 1 comprises carrier 112, controller 113, the first CD-ROM drive motor 116, positioner 117, the second CD-ROM drive motor 119, paper feeding structure 120 and provides whole bearing system 1 to operate the power supply 121 of energy.
Carrier 112 is mainly used to accommodating ink gun 111 and the one end is connected with the first CD-ROM drive motor 116, move along straight path on scan axis 115 directions 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 to be connected with carrier 112, in order to the transfer control signal to ink gun 111.
The first CD-ROM drive motor 116 can be a stepper motor, but not as limit, it is to come moving bearing bracket 112 according to the control signal that positioner 117 transmits along scan axis 115, positioner 117 then is to determine that by holder 118 carrier 112 is in the position of scan axis 115, in addition, positioner 117 also can be used to control 119 runnings of the second CD-ROM drive motor, to drive ink-jet media 122, for example: paper, and between the paper feeding structure 120, and then ink-jet media 122 can be moved along feed shaft 114 directions.
When ink-jet media 122 are determined the location in print area (not shown) after, the first CD-ROM drive motor 116 will make carrier 112 and ink gun 111 move and print along scan axis 115 on ink-jet media 122 under the driving of positioner 117, on scan axis 115, carry out once or behind the Multiple-Scan, positioner 117 will be controlled 119 runnings of the second CD-ROM drive motor, to drive between ink-jet media 122 and the paper feeding structure 120, ink-jet media 122 can be moved along feed shaft 114 directions, be placed in the print area with another zone with ink-jet media 122, and the first CD-ROM drive motor 116 will drive carrier 112 and ink gun 111 again and move and carry out another row along scan axis 115 on ink-jet media 122 and print, when repeating to all print datas always and all printing on the ink-jet media 122, ink-jet media 122 will be pushed out on the output bracket (not shown) of ink-jet printer, print action to finish.
See also Fig. 2 (a), it is the structural representation of the monochrome ink gun of the present invention's the first preferred embodiment.Wherein the ink gun 2 shown in Fig. 2 (a) is the structural representations after the simplification, 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 corresponding to heater 25 on the spray nozzle sheet 23, in present embodiment, 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), namely 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 media 122 shown in Figure 1.
In order to realize high-resolution effect, spray orifice 24 on the ink gun 2 can be arranged as 2 axis groups, represent 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 the spray orifice 24 among other axis group I or the II and axis of reference L, 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, the vertical range that adjacent two spray orifices of different center line 26 are 24 is P/2, 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, 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 as good take 9.0～12.5 interval, in this enforcement, the width W d1 of chip 21 is about 2.8 millimeters (mm), length L d1 is about 25.4 millimeters (mm), the gross area is 71.72 millimeters (mm), 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 14 spray orifices 24 of 1000/71.72 ≒ (shown in Fig. 2 (a)), and be arranged on heater 25 on the chip 21 with ink with ejection in the spray orifice 24 that is arranged as two staggered rows, in heater 25 overall length Lr1 are every delegation of 5/6 inch, 500 spray orifices 24 are arranged.
Please consult again Fig. 2 (b), have the central ink supply runner 27 of 1 strip and the heater 25 that is arranged at respectively central ink supply runner 27 dual-sides on the surface of chip 21, in addition, one side of central authorities' ink supply runner 27 comprises the first longitudinal edge 271 of arranging I group heater 25, and another side then comprises the 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 respectively 2 row's axis groups along first axle and the 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, 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 with 13.5～19.9 heaters, namely 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 1000/ (25.4 * 2.8) ≒ 14.That area with central ink supply runner 27 adds calculating together as for heater 25 density on the above-mentioned computing chip 21.
Generally speaking, in order to make lightweight ink droplet can keep flying print, heater 25 needs with very high frequency running, ink gun 2 of the present invention provides high-resolution flying print by high injection frequency in conjunction with the mode of the staggered heater 25 of high density, the injection frequency that the heater 25 of ink gun 2 of the present invention uses surpasses 20 KHzs, better 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 polychromatic 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 corresponding to heater 35 on the spray nozzle sheet 33, mainly carry out the colour print of multiple tracks by certain print resolution, and can be less than or equal to the spacing of axis spray orifice in the dot spacing of ink-jet media axis.
See also Fig. 3 (b) and Fig. 3 (c), wherein 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, as shown in the figure, the lip-deep heater 35 of the chip 31 of the ink gun 3 of present embodiment is the axis array 34 of being arranged to along axis of reference L extension, and relative reference axis L is horizontal or side direction is isolated mutually, in addition, also have three ink supply runners 36 parallel with axis of reference L on the chip 31, be mainly used to transmit the ink of different colours, and the vertical direction of relative reference axis L is separated side by side each other, and then provide the ink of different colours for the heater 35 of three axis arrays 34 of correspondence, each axis array 34 can be arranged at by 2 rows the direction of the axis of reference L that homochromy ink heater 35 forms and all is parallel to of ink supply runner 36 dual-sides, and be arranged at the dual-side of ink supply runner 36 in staggered mode between 2 row's heaters 35, so has 2 rows * 3 looks=6 rows' heater row on the chip 31 of present embodiment.
In present embodiment, can comprise 600 or more heater 35 in each axis array 34, the heater 35 that is each row can be comprised of 300 heaters 35, therefore 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 21 of the ink gun 2 of present embodiment can be a rectangular configuration, its length-width ratio is as good take 4.0～9.0 interval, the width W d2 of chip 31 is about 4.5 millimeters (mm), length L d2 is about 16 millimeters (mm), the gross area is 72 millimeters (mm), length-width ratio is Ld2/Wd2=16/4.5=3.6, and between the density region of chip 31 upper heaters 35 take 20.1～30.0 as good, each row's heater 35 overall length 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) * 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 the interval 0.15mm～0.17mm of being of each ink supply runner 36 width S d2, and each ink supply runner 36 length L s2 interval is 0.15mm～0.17mm, and the B-B sectional area ratio interval that the overall width of three ink supply runners 36 accounts for chip 31 can be 6.25%～10%.
In another embodiment, the heater row that can have equally 6 rows on the chip 31, but the sum of heater can be 2000～3000, 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), and the gross area is 31.75～88.9 square millimeters of (mm
2), length-width ratio is 3.6～10, and between the density region of chip 31 upper heaters 35 take 31～90 as good, each row's heater 35 overall length 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), namely 22.4～94.5.That area with ink supply runner 37 adds calculating together as for heater 35 density on the above-mentioned computing chip 31.
Ink gun of the present invention is except arranging more heater effectively to utilize the ink gun space to reduce cost and to improve the print speed on chip by staggered mode, also can reach the reduction chip area by the address control mode of reduction ink gun inside chip, make the size relative decrease of ink gun, and then reduce the cost of producing ink-jet printer.
See also Fig. 4, it is the syndeton schematic diagram 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 pre-thermal 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 the signal breech lock (latch) that gating signal is imported ink-jet controlling circuit 41 into for control chip of ink-jet head 42 is lived, heating signal is to make the heater circuit spray printing of ink gun go out the signal of ink droplet, and pre-thermal signal is to allow 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 circuit structure for amplifying schematic diagram of the C part 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 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 part is for receiving odd address data-signal (such as left side part of Fig. 5 (a)) and going here and there and data-signal converter (ser 2par_odd) 4211 by first, the first string and address signal converter (ser 2par_address) 4221, the first main address decoder (MA) 4231, the address decoder first time (SA) 4241, the first buffer (Fire Buffer, FB) 4251 and the ink-jet driving circuit 426 that consists of a plurality of groups of circuit blocks (Bank) form.
As for, second the part then be receive even address data-signal (such as right-hand part part of Fig. 5 (a)) and by second the string and data-signal converter (ser 2par_even) 4212, the second string and address signal converter (ser 2par_address) 4222, the second main address decoder (MA) 4232, the address decoder second time (SA) 4242, the second buffer (Fire Buffer, FB) 4252 and the ink-jet driving circuit 426 that consists of a plurality of groups of circuit blocks (Bank), because first part is in fact similar to the circuit framework of the second part, discrepancy only be the first string and data-signal converter 4211 and the second string and data-signal converter 4212 the data-signal that receives respectively be odd address or even address, therefore will only with first part explanation be proposed below, the left side part circuit that namely receives the odd address data-signal is example, and right-hand part part circuit of dual numbers address data signal no longer.
Please consult again Fig. 5 (b), the first string and data-signal converter 4211 are to receive the clock signal (clock) that ink-jet controlling circuit 41 is exported, odd address data-signal (Data_odd) and gating signal (strobe), and will be originally export the also column signal of totally 15 bits via od0～od14 winding displacement and export for the odd address data-signal of tandem input is converted into, the first string and address signal converter 4221 then are to receive the clock signal (clock) that ink-jet controlling circuit 41 is exported, address signal (address) and gating signal (strobe), and will be originally export totally 5 also column signal via m0～m2 and S0～S2 winding displacement and export for the address signal of tandem input is converted into, wherein the signal exported of m0～m2 is to be sent to the first main address decoder 4231 and through decoding and by 5 of winding displacement MA0's～MA4 output and column signal, and the signal of exporting as for winding displacement S0～S2 is to be sent to address decoder 4241 for the first time and through decoding and by 4 of winding displacement SA0's～SA3 output and column signal.
The first buffer 4251 receives heating signal (MF) and the pre-thermal signal (PF) that ink-jet controlling circuit 41 is exported, be mainly used to remove the noise of heating signal and pre-thermal signal and strengthen signal strength signal intensity, increasing the signal stabilization degree, and the heating signal after will processing and in advance thermal signal be sent to ink-jet driving circuit 426.
And each ink-jet driving circuit 426 mainly comprises and door 4261, electric potential transfer circuit, driving transistors 4263 and heater R, have 3 pin MA_X with door 4261, SA_Y and Data_Z, 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, to receive the first main address decoder 4231 and the address signal exported of address decoder 4241 for the first time with door 4261, and first string and the odd address data-signal that transmits of 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 the first buffer 4251, in order to receive heating signal (MF) and the pre-thermal signal (PF) of exporting with door 4261 operation results of exporting and the first buffer 4251, when the operation result of exporting with door 4261 is low-potential signal, booster circuit 4262 is with the pre-thermal signal of selective reception (PF), and convert pre-thermal signal (PF) to high potential signal by electronegative potential, be mainly used to trigger driving transistors 4263 conductings, to transmit simultaneously one 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 exporting with door 4261 is high potential signal, booster circuit 4262 is with selective reception heating signal (MF), and convert heating signal to high potential signal by electronegative potential, be mainly used to trigger driving transistors 4263 conductings, will transmit simultaneously one 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 media.
426 of ink-jet driving circuits that wherein comprise in each group circuit blocks (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 single address decoder of existing utilization carries out the decoding of address signal, and the present invention simultaneously by 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 position, M and N are natural number, impel the first main address decoder 4231 and for the first time address decoder 4241 form M * N row signal arranged side by side and be delivered in 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, be M=5, inferior address signal is responsible for 4 positions, be N=4, main address signal is 5 and the column signal that the first main address decoder 4231 is exported via winding displacement MA0～MA4, inferior address signal 4 and column signal that namely the first time, address decoder 4241 was exported via winding displacement SA0～SA3, main address signal and inferior address signal are via producing after multiplying each other identical with address sum originally with door 4261, be M * N=5 * 4=20, can solve that existing Technology Need arranges 20 winding displacements and the problem that increases chip layout (layout) size, and then reach the area space of reduction winding displacement shared chip of ink-jet head, reach the reduction chip area, make the size relative decrease of ink gun, and then reduce the cost of producing ink-jet printer.
See also lower 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～S2 winding displacement is input to for the first time address signal arranged side by side of address decoder 4241, the correspondence table 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 is not limited with M=5 and N=4, can the demand adjustment, for example, when the control address number is 16, the winding displacement number of the first main address decoder 4231 can be M=4, and for the first time address decoder 4241 is maintained N=4 equally, both rear M * N=4 * 4=16 that multiply each other.
In sum, monochrome ink gun structure of the present invention mainly arranges more heater effectively to utilize the ink gun space to reduce cost and to improve outside the print speed by staggered mode on chip, also can replace existing single address decoder by main address decoder and time address decoder, the layout winding displacement area of reduction ink gun inside chip is with the reduction chip area, make the size relative decrease of ink gun, and then reduce the cost of producing ink-jet printer.Therefore, monochrome ink gun structure of the present invention has the value of industry.
Claims (13)
1. ink gun structure, in order to carry out the inkjet printing of monochromatic ink, it comprises:
One chip, the length-width ratio interval of this chip is 9.0～12.5;
At least 1000 heaters, it is to have the heater number divided by the density setting of the chip gross area, be to be arranged on this chip with the density greater than every square millimeter of 14 heaters, and this heater is that the edge is parallel to each other and spaced axis is arranged at least 2 axis groups; And
One receives the address control circuit of a string column address signal that an ink-jet controlling circuit exports at least, this address control circuit includes one and converts the tandem address signal that receives to the string of two groups of address signals outputs arranged side by side and address signal converter and two and receive respectively the output signal of this string and address signal converter and the address decoder of being decoded, impel these two address decoders form M * N row signal arranged side by side be delivered 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 is characterized in that these a plurality of heater overall lengths that each this axis group comprises are 5/6 inch.
3. ink gun structure according to claim 1, the length-width ratio that it is characterized in that this chip is 9.0.
4. ink gun structure according to claim 1 is characterized in that between the density region of this heater be every square millimeter of 13.5～19.9 heaters.
5. ink gun structure according to claim 1 is characterized in that the injection frequency that these a plurality of heaters use is 24 KHzs.
6. an ink gun structure, in order to carry out the inkjet printing of monochromatic ink, it comprises:
One chip;
At least 1000 heaters, it is to be arranged on this chip;
Wherein these at least 1000 heaters are to arrange a plurality of heaters that form a first axle group along a first axle, and arrange to form a plurality of heaters of one second axis group along one second axis, and be to be staggered between these a plurality of heaters of this first axle group and this second axis group; The length-width ratio interval of this chip is 9.0～12.5; And
One receives the address control circuit of a string column address signal that an ink-jet controlling circuit exports at least, this address control circuit includes one and converts the tandem address signal that receives to the string of two groups of address signals outputs arranged side by side and address signal converter and two and receive respectively the output signal of this string and address signal converter and the address decoder of being decoded, impel these two address decoders form M * N row signal arranged side by side be delivered to have one with and the ink-jet driving circuit of a heater in as the ink-jet control signal.
7. ink gun structure according to claim 6 is characterized in that this ink gun structure also comprises a central ink supply runner, and it is to be arranged between these a plurality of heaters of this first axle group and this second axis group.
8. ink gun structure according to claim 7, the width of flow path that it is characterized in that this central authorities' ink supply runner is 0.175 millimeter, flow channel length is 21.24 millimeters.
9. according to claim 6 ink gun structure, it is characterized in that, this chip has an address control circuit, receive a serial data signal, a string column address signal, a heating signal and a pre-thermal signal that an ink-jet controlling circuit is exported, and have a string and data-signal converter and a plurality of ink-jet driving circuit, this string and data-signal converter receive this serial data signal, and convert parallel data signal output to, and this address control circuit comprises:
A string and address signal converter, it receives this tandem address signal, and converts one first address signal arranged side by side and one second address signal output arranged side by side to;
One main address decoder, it is connected with this string and address signal converter, in order to this first address arranged side by side signal decoding is become one the 3rd address signal arranged side by side;
The primary address decoder, it is connected with this string and address signal converter, in order to this second address arranged side by side signal decoding is become one the 4th address signal arranged side by side;
Wherein a plurality of ink-jet driving circuits are connected with this string and data-signal converter, this main address decoder and this address decoder, and have respectively one with door and a heater, in order to receive this parallel data signal one of them, the 3rd address signal arranged side by side one of them, the 4th address signal arranged side by side one of them and this heating signal reach this pre-thermal signal; And
Should with door receive the 3rd address signal arranged side by side one of them, the 4th address signal arranged side by side one of them and this parallel data signal one of them to carry out a multiplier logic computing and to export an operation result, make this corresponding heater mutually should operation result and this heating signal, perhaps mutually should operation result and the control of this pre-thermal signal and operating.
10. chip of ink-jet head according to claim 9, it is characterized in that this ink-jet driving circuit also comprises an electric potential transfer circuit and a driving transistors, this electric potential transfer circuit is to be connected with door and this driving transistors and to receive this heating signal with this to reach this pre-thermal signal, and this driving transistors is to be connected with this heater.
11. chip of ink-jet head according to claim 10, it is characterized in that this electric potential transfer circuit is a booster circuit, when this is a low-potential signal with this operation result of exporting, this booster circuit is with this pre-thermal signal of selective reception, and should convert a high potential signal to by electronegative potential by pre-thermal signal, in order to trigger this driving transistors conducting, will transmit simultaneously one and print voltage to this heater, make this heater carry out the preheating action.
12. chip of ink-jet head according to claim 11, it is characterized in that when this is a high potential signal with this operation result of exporting, this booster circuit is with this heating signal of selective reception, and should convert this high potential signal to by electronegative potential by pre-thermal signal, in order to trigger this driving transistors conducting, to transmit simultaneously this printing voltage to this heater, and make this heater carry out the inkjet printing action.
13. an ink gun structure, in order to carry out the inkjet printing of monochromatic ink, it comprises:
One chip, the length-width ratio interval of this chip is 9.0～12.5;
At least 1000 heaters, it is to have the heater number divided by the density setting of the chip gross area, be to be arranged on this chip with the density greater than every square millimeter of 14 heaters, and this heater is that the edge is parallel to each other and spaced axis is arranged at least 2 axis groups;
This chip has an address control circuit, receive a serial data signal, a string column address signal, a heating signal and a pre-thermal signal that an ink-jet controlling circuit is exported, and have a string and data-signal converter and a plurality of ink-jet driving circuit, this string and data-signal converter receive this serial data signal, and convert parallel data signal output to, this address control circuit comprises:
A string and address signal converter, it receives this tandem address signal, and converts one first address signal arranged side by side and one second address signal output arranged side by side to;
One main address decoder, it is connected with this string and address signal converter, in order to this first address arranged side by side signal decoding is become one the 3rd address signal arranged side by side;
The primary address decoder, it is connected with this string and address signal converter, in order to this second address arranged side by side signal decoding is become one the 4th address signal arranged side by side;
Wherein a plurality of ink-jet driving circuits are connected with this string and data-signal converter, this main address decoder and this address decoder, and have respectively one with door and a heater, in order to receive this parallel data signal one of them, the 3rd address signal arranged side by side one of them, the 4th address signal arranged side by side one of them and this heating signal reach this pre-thermal signal; And
Should with door receive the 3rd address signal arranged side by side one of them, the 4th address signal arranged side by side one of them and this parallel data signal one of them to carry out a multiplier logic computing and to export an operation result, make this corresponding heater mutually should operation result and this heating signal, perhaps mutually should operation result and the control of this pre-thermal signal and operating.
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| CN 200710091710 CN101274515B (en) | 2007-03-29 | 2007-03-29 | Monochrome ink gun structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011160288A1 (en) * | 2010-06-22 | 2011-12-29 | 北京中科纳新印刷技术有限公司 | Monochrome inkjet printing device, method thereof and method for converting color inkjet printing device into monochrome inkjet printing device |
| CN102452228B (en) * | 2010-10-22 | 2014-10-15 | 研能科技股份有限公司 | Monochrome spray-printing ink head module |
| CN102463753B (en) * | 2010-11-10 | 2014-01-08 | 研能科技股份有限公司 | Ink jetting unit group |
| CN103129132B (en) * | 2011-12-01 | 2015-07-15 | 研能科技股份有限公司 | Ink-jet printing module |
| EP2825386B1 (en) | 2013-02-28 | 2018-02-21 | Hewlett-Packard Development Company, L.P. | Molded fluid flow structure |
| KR20150112029A (en) | 2013-02-28 | 2015-10-06 | 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. | Molded print bar |
| KR101827070B1 (en) | 2013-02-28 | 2018-02-07 | 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. | Molding a fluid flow structure |
| US9724920B2 (en) | 2013-03-20 | 2017-08-08 | Hewlett-Packard Development Company, L.P. | Molded die slivers with exposed front and back surfaces |
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| EP0914948A2 (en) * | 1997-11-04 | 1999-05-12 | Lexmark International, Inc. | Ink jet printing apparatus |
| CN1233561A (en) * | 1998-02-10 | 1999-11-03 | 佳能株式会社 | Liquid ejecting method and liquid ejecting head |
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| CN1513670A (en) * | 2002-10-22 | 2004-07-21 | 三星电子株式会社 | Device and method for transmitting serial datal address of printing head and printing machine |
| CN1545452A (en) * | 2001-06-19 | 2004-11-10 | ���չ�˾ | Compact ink jet printhead |
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| EP0914948A2 (en) * | 1997-11-04 | 1999-05-12 | Lexmark International, Inc. | Ink jet printing apparatus |
| CN1233561A (en) * | 1998-02-10 | 1999-11-03 | 佳能株式会社 | Liquid ejecting method and liquid ejecting head |
| CN1469809A (en) * | 2000-08-16 | 2004-01-21 | ���չ�˾ | Compact high-performance, high-density ink jet printhead |
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