TWI464074B - Printhead for thermal inkjet printing and the printing method thereof - Google Patents
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Description
本發明涉及列印頭。更特定來說，本發明涉及用於熱噴墨列印的列印頭。The invention relates to a print head. More particularly, the present invention relates to a printhead for thermal inkjet printing.
噴墨印表機用於多種不同產品中。列印頭的功能是將微小墨滴從小孔內噴射到一列印媒介上。為了列印圖像，將列印頭安裝到印表機中的托架。托架橫越在一空白的列印媒介的表面上，且列印頭受控制以依照來自微型電腦或其他控制器的命令在適當時間噴射墨滴。以此方式，透過將墨滴噴射到列印媒介上而形成所要圖像或文本的圖案。Inkjet printers are used in many different products. The function of the print head is to inject tiny droplets of ink from a small hole onto a line of print media. To print the image, mount the printhead to the bay in the printer. The carriage traverses over the surface of a blank print medium and the print head is controlled to eject ink drops at appropriate times in accordance with commands from a microcomputer or other controller. In this way, a pattern of desired images or text is formed by ejecting ink droplets onto a printing medium.
存在已知的若干墨滴噴射機制，例如熱噴墨技術、壓電噴墨技術等。我們在本專利申請案中實施熱噴墨技術。在一般的熱噴墨系統中，含有墨水通道和蒸發腔室的障壁層形成于噴嘴孔板層與基板層之間。此基板層通常含有加熱器元件(例如電阻器)陣列，其分別電連接到起動電路(將稍後對其進行描述)且電阻器被選擇性地通電以加熱蒸發腔室內的墨水。在加熱後，與經通電的電阻器相關聯的噴嘴就會噴射墨滴。There are several known drop ejection mechanisms, such as thermal ink jet technology, piezoelectric ink jet technology, and the like. We implement thermal inkjet technology in this patent application. In a typical thermal inkjet system, a barrier layer comprising an ink channel and an evaporation chamber is formed between the nozzle orifice layer and the substrate layer. This substrate layer typically contains an array of heater elements (e.g., resistors) that are electrically coupled to a starter circuit (described later) and that are selectively energized to heat the ink within the evaporation chamber. After heating, the nozzle associated with the energized resistor will eject ink drops.
近年來，為了增加列印解析度的程度、列印速度和熱噴墨列印系統的品質而進行了許多研究。列印解析度取決於在列印頭基板上形成的噴墨孔和加熱電阻器的間距，其意味著相鄰的噴墨孔和相鄰的加熱電阻器之間距愈小，解析度越高。現代的電路製造技術允許將大量電阻器放置在單一列印頭基板上。具體來說，伴隨不斷增加的大量電阻器而來的是大量的互連墊、引線和類似物。組件和互連件的增加導致更大的製造/生產成本，且增加了在製造過程期間將出現缺陷的可能性。第5,635,968號美國專利提供一種用於噴嘴的特殊配置和驅動方法以解決上述問題。In recent years, much research has been conducted to increase the degree of print resolution, the printing speed, and the quality of thermal inkjet printing systems. The print resolution depends on the pitch of the ink jet holes and the heating resistors formed on the print head substrate, which means that the smaller the distance between adjacent ink jet holes and the adjacent heating resistors, the higher the resolution. Modern circuit fabrication techniques allow a large number of resistors to be placed on a single printhead substrate. In particular, a large number of interconnect pads, leads and the like come with a growing number of resistors. The increase in components and interconnects results in greater manufacturing/production costs and increases the likelihood that defects will occur during the manufacturing process. U.S. Patent No. 5,635,968, the disclosure of which is incorporated herein incorporated by its entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire all
第5,638,101號美國專利在列印期間的單個回合中提供高達每英寸600點(600dpi)的列印解析度，且起動元件配置在2個陣列中。圖1A展示將用2個陣列和交錯配置形成600dpi的解析度的噴嘴配置。如圖1B中所示，噴嘴的兩個交錯列經通電以列印具有600dpi的解析度的單條垂直線。如果一個列的噴嘴具有300dpi的解析度，那麼圖1A中的交錯配置獲得雙倍的解析度，即600dpi。U.S. Patent No. 5,638,101 provides a print resolution of up to 600 dots per inch (600 dpi) in a single pass during printing, and the launching elements are arranged in two arrays. Figure 1A shows a nozzle configuration that will form a resolution of 600 dpi with 2 arrays and a staggered configuration. As shown in Figure 1B, the two staggered columns of nozzles are energized to print a single vertical line having a resolution of 600 dpi. If the nozzles of one column have a resolution of 300 dpi, the interleaved configuration in Figure 1A achieves a double resolution, ie 600 dpi.
為增加列印速度，第6,860,585號美國專利提供一種不同的噴嘴配置，但其具有較低的解析度。如圖2A中所示，第6,860,585號美國專利透過將列印頭安裝到具有兩列噴嘴的托架上而使列印頭傾斜，並且將配置在相同水平線上的噴嘴同時通電。圖2B展示透過圖2A中的列印頭中的2個交錯列的噴嘴列印的點。因此，透過用於將噴嘴通電的適當時序，此配置可同時列印兩條垂直線，以便增加列印速度。然而，卻犧牲了解析度。In order to increase the printing speed, U.S. Patent No. 6,860,585 provides a different nozzle configuration, but with a lower resolution. As shown in FIG. Figure 2B shows the dots printed through the nozzles of the two staggered columns in the printhead of Figure 2A. Thus, with proper timing for energizing the nozzles, this configuration can print two vertical lines simultaneously to increase the printing speed. However, the resolution is sacrificed.
因此，一種同時改進列印解析度和列印速度的技術是有其必要性的。Therefore, a technique for simultaneously improving the printing resolution and the printing speed is necessary.
本發明可同時改進列印速度和解析度。此外，本發明的一實施例消除了噴嘴的起動信號間的串擾。The present invention can simultaneously improve printing speed and resolution. Moreover, an embodiment of the present invention eliminates crosstalk between the firing signals of the nozzles.
本發明的一實施例提供一種用於熱噴墨列印的列印頭，其包括：一基板，其具有多個小孔，該等小孔的每一者中具有一起動元件，其中該等小孔被配置成單一列，該等起動元件被分類為第一數目的群組，且每一群組包括：一第二數目的起動元件，其中一群組中的該等第二數目的起動元件經配置以使得該等第二數目的起動元件中的每一者在不同時間通電，且用於使任何兩個鄰近起動元件通電的時間差為至少兩個預定時間間隔，且經定位以使得兩個連續起動的起動元件被至少兩個其他起動元件分離；以及起動電路，其用於透過將多個起動信號分別傳輸到該等起動元件來使該等起動元件通電以將墨噴射在列印媒介上，其中該列印頭與該列印頭進行掃描的水平方向成一角度而安置，且該角度實質上不等於90度。An embodiment of the present invention provides a printhead for thermal inkjet printing, comprising: a substrate having a plurality of small holes, each of the small holes having a moving element, wherein The apertures are configured as a single column, the activation elements are classified into a first number of groups, and each group includes: a second number of activation elements, wherein the second number of activations in a group The component is configured such that each of the second number of firing elements is energized at different times, and the time difference for energizing any two adjacent starting components is at least two predetermined time intervals, and is positioned such that two a continuously activated starting element separated by at least two other starting elements; and a starting circuit for energizing the starting elements to eject ink onto the printing medium by separately transmitting a plurality of starting signals to the starting elements And wherein the print head is disposed at an angle to a horizontal direction in which the print head scans, and the angle is substantially not equal to 90 degrees.
本發明的另一實施例提供一種用於熱噴墨列印的列印頭，其包括：一基板，其具有多個小孔，該等小孔的每一者中具有一起動元件，其中該等小孔被配置成至少兩列，其中該等起動元件被分類為一第一數目的群組，且每一群組包括一第二數目的起動元件，其中一群組中的該等第二數目的起動元件經配置以使得該等第二數目的起動元件中的每一者在不同時間通電，且用於使任何兩個鄰近起動元件通電的時間差為至少兩個預定時間間隔，其中該群組中的該等第二數目的起動元件經定位以使得兩個連續起動的起動元件被至少兩個其他起動元件分離；以及起動電路，其用於透過將多個起動信號分別傳輸到該等起動元件來使該等起動元件通電以將墨噴射在列印媒介上，其中在一個列中起動元件獨立於在另一列中起動元件而通電，其中該列印頭與該列印頭進行掃描的水平方向成一角度而安置，且該角度實質上不等於90度。Another embodiment of the present invention provides a printhead for thermal inkjet printing, comprising: a substrate having a plurality of small holes, each of the small holes having a moving element, wherein the The equal apertures are configured in at least two columns, wherein the starting elements are classified into a first number of groups, and each group includes a second number of starting elements, wherein the second of the groups The number of starting elements are configured such that each of the second number of starting elements is energized at different times, and the time difference for energizing any two adjacent starting elements is at least two predetermined time intervals, wherein the group The second number of starting elements in the group are positioned such that two consecutively activated starting elements are separated by at least two other starting elements; and a starting circuit for transmitting a plurality of starting signals to the respective starting Elements for energizing the starting elements to eject ink onto the printing medium, wherein in one column the starting elements are energized independently of the starting elements in the other column, wherein the printing head is associated with the printing head The description and disposed at an angle to the horizontal, and an angle substantially equal to 90 degrees.
本發明的另一實施例提供一種列印方法，其用於具有分類為多個群組的多個起動元件的列印頭，該方法包括：分別透過多個起動信號使該等起動元件中的每一者通電，其中以不同時序使一群組中的該等起動元件中的每一者通電，任何兩個鄰近噴嘴通電的時序之間的差是至少兩個預定時間間隔，且其中該等起動元件經定位以使得兩個連續起動的起動元件被至少兩個其他起動元件分離。Another embodiment of the present invention provides a printing method for a printing head having a plurality of starting elements classified into a plurality of groups, the method comprising: respectively transmitting a plurality of activation signals in the starting elements Each of the energizations, wherein each of the starter elements in a group is energized at different timings, the difference between the timings of energization of any two adjacent nozzles is at least two predetermined time intervals, and wherein The starting element is positioned such that two continuously activated starting elements are separated by at least two other starting elements.
為了使本發明的前述和其他目的、特徵和優點更易於理解，下文詳細描述伴有圖式的較佳實施例。In order to make the foregoing and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments of the accompanying drawings.
本申請案的較佳實施例提供一種用於熱噴墨列印的列印頭，其包括：基板，其具有多個小孔，該等小孔的每一者中具有一起動元件，其中該等小孔被配置成單一列，且該列印頭與該列印頭進行掃描的水平方向成一角度而安置；以及起動電路，其用於透過將多個起動信號分別傳輸到該等起動元件來使該等起動元件通電以將墨噴射在列印媒介上。A preferred embodiment of the present application provides a printhead for thermal inkjet printing, comprising: a substrate having a plurality of apertures, each of the apertures having a moving element, wherein the The apertures are configured as a single column, and the printhead is disposed at an angle to a horizontal direction in which the printhead scans; and a starter circuit for transmitting a plurality of start signals to the starter elements respectively The starting elements are energized to eject ink onto the printing medium.
請參看圖3，其展示根據本發明的一實施例的列印頭100的定向。圖3中的箭頭22表示列印頭相對於列印媒介(例如空白紙)的相對運動。列印頭100包括基板，該基板上具有多個小孔102。每一小孔對應於用於噴射墨滴的起動元件。根據圖3中所示的較佳實施例，小孔(或噴嘴)配置成單一列，且列印頭與其進行掃描的水平方向成一角度θ而安置。該列印頭進一步包括起動電路，其用於使該等起動元件通電以將墨噴射在列印媒介上。該起動電路分別將起動信號傳輸到每一起動元件，其詳細內容將稍後對其進行介紹。透過適當地界定每一噴嘴的起動時序，列印頭上的噴嘴將在列印期間在列印媒介上繪製垂直線。由於列印頭的定向與圖3中的箭頭之間的角度θ，斜置列印頭的垂直解析度優於垂直安置的列印頭的解析度。在本實施例中，θ為135度。如果垂直於箭頭而安置的列印頭具有212dpi的解析度，那麼具有135度θ的列印頭具有約300dpi(即，)的解析度。在較佳實施例中，在使列印頭傾斜135度θ時，列印頭解析度在本發明中高達600dpi。對於相同的列印頭，可透過改變θ的值而實現不同的垂直解析度。在其他實施例中，θ可不受限制且可由所要的解析度改變。根據較佳實施例，θ處於10-80度或100-170度的範圍中。Referring to Figure 3, there is shown the orientation of the printhead 100 in accordance with an embodiment of the present invention. Arrow 22 in Figure 3 indicates the relative movement of the print head relative to the print medium (e.g., blank paper). The printhead 100 includes a substrate having a plurality of apertures 102 therein. Each aperture corresponds to a starting element for ejecting ink drops. According to the preferred embodiment illustrated in Figure 3, the apertures (or nozzles) are arranged in a single column and the printhead is placed at an angle θ to the horizontal direction in which it is scanned. The printhead further includes a starter circuit for energizing the starter elements to eject ink onto the print medium. The starting circuit transmits a start signal to each of the starting elements, respectively, the details of which will be described later. By properly defining the start timing of each nozzle, the nozzles on the printhead will draw vertical lines on the print medium during printing. Due to the angle θ between the orientation of the print head and the arrow in Figure 3, the vertical resolution of the oblique print head is better than the resolution of the vertically placed print head. In the present embodiment, θ is 135 degrees. If the print head placed perpendicular to the arrow has a resolution of 212 dpi, then the print head having 135 degrees θ has about 300 dpi (ie, The resolution of ). In the preferred embodiment, the print head resolution is as high as 600 dpi in the present invention when the print head is tilted by 135 degrees θ. For the same print head, different vertical resolutions can be achieved by changing the value of θ. In other embodiments, θ may be unrestricted and may be varied by the desired resolution. According to a preferred embodiment, θ is in the range of 10-80 degrees or 100-170 degrees.
為解決起動信號之間的串擾問題，本發明提供一種獨特的噴嘴配置。圖4A展示列印頭上的噴嘴的配置。噴嘴被分類為第一數目的基本群組P1、P2...PN，且每一基本群組包括第二數目的噴嘴H1、H2...HM。根據本發明，第一數目為23且第二數目為13。基本群組中的噴嘴形成實質上但非精確的直線。圖4B說明基本群組中的噴嘴H1、H2、H3...H13的位置，且其中在x軸的方向上具有放大的尺度。圖4B還展示每一噴嘴的起動序列A1、A2、A3...A13。透過規則1和/或規則2來配置在基本群組中的噴嘴，其中規則1為用於起動任何兩個鄰近噴嘴的時序之間的差為至少兩個預定時間間隔，規則2為兩個連續起動的起動元件(例如噴嘴)間被至少兩個其他起動元件分離。To address the crosstalk problem between the start signals, the present invention provides a unique nozzle configuration. Figure 4A shows the configuration of the nozzles on the print head. The nozzles are classified into a first number of basic groups P1, P2 ... PN, and each basic group includes a second number of nozzles H1, H2 ... HM. According to the invention, the first number is 23 and the second number is 13. The nozzles in the basic group form a substantially but inaccurate line. Figure 4B illustrates the locations of the nozzles H1, H2, H3 ... H13 in the basic group, and with an enlarged scale in the direction of the x-axis. Figure 4B also shows the start sequence A1, A2, A3 ... A13 for each nozzle. The nozzles in the basic group are configured by Rule 1 and/or Rule 2, wherein Rule 1 is the difference between the timings for starting any two adjacent nozzles is at least two predetermined time intervals, Rule 2 is two consecutive The starting starting elements (for example nozzles) are separated by at least two other starting elements.
將圖4B中所示的配置作為實例。基本群組中的噴嘴被命名為H1、H2、H3...H13，且分別具有起動序列A5、A13、A8...A11。實心圓表示每一噴嘴的位置。因此，以H7(A1)、H10(A2)、H4(A3)、H12(A4)、H1(A5)、H5(A6)、H9(A7)、H3(A8)、H11(A9)、H6(A10)、H13(A11)、H8(A12)、H2(A13)的順序起動這些噴嘴。規則1規定用於使任何兩個鄰近噴嘴通電的時序之間的差為至少兩個預定時間間隔。舉例來說，用於使H1(A5)和H2(A13)通電的時序差為8個時間間隔，且用於使H2(A13)和H3(A8)通電的時序差為5個時間間隔。在本實施例中，預定時間間隔處於100ns到10μs的範圍內。規則2規定任何兩個連續起動的噴嘴被至少兩個其他起動元件分離。舉例來說，y軸上的噴嘴H7(A1)和H10(A2)之間的距離為三個噴嘴間距，y軸上的噴嘴H10(A2)和H4(A3)之間的距離為六個噴嘴間距，且y軸上的噴嘴H4(A3)和H12(A4)之間的距離為八個噴嘴間距。如圖4B中所示，所有噴嘴遵循規則1和規則2。根據本發明的一實施例，每一基本群組中的噴 嘴配置是相同的且遵循規則1和規則2。然而，規則1或規則2都可防止起動信號間的串擾，因此可單獨地或同時地應用于本發明。在較佳實施例中，係同時利用規則1和規則2。The configuration shown in FIG. 4B is taken as an example. The nozzles in the basic group are named H1, H2, H3...H13, and have start sequences A5, A13, A8...A11, respectively. A solid circle indicates the position of each nozzle. Therefore, H7 (A1), H10 (A2), H4 (A3), H12 (A4), H1 (A5), H5 (A6), H9 (A7), H3 (A8), H11 (A9), H6 ( These nozzles are activated in the order of A10), H13 (A11), H8 (A12), and H2 (A13). Rule 1 specifies that the difference between the timings used to energize any two adjacent nozzles is at least two predetermined time intervals. For example, the timing difference for energizing H1 (A5) and H2 (A13) is 8 time intervals, and the timing difference for energizing H2 (A13) and H3 (A8) is 5 time intervals. In the present embodiment, the predetermined time interval is in the range of 100 ns to 10 μs. Rule 2 specifies that any two continuously activated nozzles are separated by at least two other starting elements. For example, the distance between the nozzles H7 (A1) and H10 (A2) on the y-axis is three nozzle pitches, and the distance between the nozzles H10 (A2) and H4 (A3) on the y-axis is six nozzles. The pitch, and the distance between the nozzles H4 (A3) and H12 (A4) on the y-axis is eight nozzle pitches. As shown in Figure 4B, all nozzles follow Rule 1 and Rule 2. According to an embodiment of the invention, the spray in each basic group The mouth configuration is the same and follows Rule 1 and Rule 2. However, either Rule 1 or Rule 2 can prevent crosstalk between the start signals, and thus can be applied to the present invention individually or simultaneously. In the preferred embodiment, both Rule 1 and Rule 2 are utilized.
假定噴嘴H1的位置為開始點，在圖4A的本實施例中，在以下表1中描述基本群組1中的每一噴嘴在X-Y座標上的位置。Assuming that the position of the nozzle H1 is the starting point, in the present embodiment of Fig. 4A, the position of each nozzle in the basic group 1 on the X-Y coordinate is described in Table 1 below.
在表1中，△表示投射在x軸上的噴嘴H1與H13之間的距離，其中的預定數目的△對應於基本群組1中的每個噴嘴的起動序列。每一基本群組重複相同的噴嘴配置和起動序列以在列印期間一次僅起動每一群組中的一個噴嘴。如圖5中所示，當列印頭向列印掃描方向24傾斜135度時，如表2中所示，噴嘴的位置改變。當旋轉一角度時，透過表1上的X的座標且乘以加上水平移位而導出表2上的新X的座標，其中此實施例中的角度為135度。新Y的座標是從表1上的Y的座標及X座標之Δ間的關係且除以而得到。In Table 1, Δ represents the distance between the nozzles H1 and H13 projected on the x-axis, wherein a predetermined number of Δ corresponds to the starting sequence of each nozzle in the basic group 1. Each basic group repeats the same nozzle configuration and start sequence to start only one nozzle in each group at a time during printing. As shown in FIG. 5, when the print head is inclined by 135 degrees toward the printing scanning direction 24, as shown in Table 2, the position of the nozzle is changed. When rotating an angle, pass the coordinates of X on Table 1 and multiply by The coordinates of the new X on Table 2 are derived by adding the horizontal shift, where the angle in this embodiment is 135 degrees. The coordinates of the new Y are the relationship between the coordinates of Y and the Δ of the X coordinate on Table 1 and divided by And get it.
為形成列印媒介上的垂直線，圖6揭示用於使每個基本群組P1、P2...P23中的噴嘴H1、H2...H13通電的時序圖。根據本實施例中的噴嘴配置，噴嘴H1的起動時序不具有延遲，噴嘴H2的起動時序具有()除以列印頭與列印媒介之間的相對移動速率的延遲；噴嘴H3的起動時序具有()除以列印頭與列印媒介之間的相對移動速率的延遲；噴嘴H4的起動時序具有()除以列印頭與列印媒介之間的相對移動速率的延遲...依此類推。To form a vertical line on the print medium, Figure 6 discloses a timing diagram for energizing the nozzles H1, H2 ... H13 in each of the basic groups P1, P2 ... P23. According to the nozzle configuration in the embodiment, the start timing of the nozzle H1 does not have a delay, and the start timing of the nozzle H2 has ( Divided by the delay of the relative movement rate between the print head and the print medium; the start timing of the nozzle H3 has ( Divided by the delay of the relative movement rate between the print head and the print medium; the start timing of the nozzle H4 has ( ) divided by the delay in the relative movement rate between the print head and the print medium... and so on.
請注意，基本群組中的噴嘴配置應遵循上文提到的規則1和/或規則2，且不限於圖4B中所示的配置。當噴嘴配置改變時，Δ的值改變，則噴嘴的起動時序會因此改變。因此，如果列印頭傾斜的角度或相對移動速率改變，那麼起動時序改變。在列印頭傾斜的角度、列印頭的相對移動速率或噴嘴配置改變時，所屬領域的技術人員可容易基於上文揭示內容導出詳細起動時序。Note that the nozzle configuration in the basic group should follow Rule 1 and/or Rule 2 mentioned above, and is not limited to the configuration shown in FIG. 4B. When the nozzle configuration changes, the value of Δ changes, and the start timing of the nozzle changes accordingly. Therefore, if the angle at which the print head is tilted or the relative movement rate changes, the start timing changes. A person skilled in the art can readily derive a detailed start sequence based on the above disclosure when the print head is tilted at an angle, the relative movement rate of the print head, or the nozzle configuration changes.
本發明的另一較佳實施例還提供一種用於熱噴墨列印的列印頭，其包括：基板，其具有多個小孔，該等小孔的每一者中具有一起動元件，其中該等小孔配置成至少兩列，且該列印頭與該列印頭進行掃描的水平方向成一角度而安置；以及起動電路，其用於透過將多個起動信號分別傳輸到該等起動元件來使該等起動元件通電以將墨噴射在列印媒介上，其中使一個列中的該等起動元件獨立於另一列中的該等起動元件而通電。由於本實施例中的列印頭使一列以上起動元件獨立通電，所以可增加列印速度。Another preferred embodiment of the present invention also provides a printhead for thermal inkjet printing, comprising: a substrate having a plurality of apertures, each of the apertures having a moving element, Wherein the apertures are arranged in at least two columns, and the print head is disposed at an angle to a horizontal direction in which the print head scans; and a starter circuit for transmitting a plurality of start signals to the starters respectively The components are configured to energize the starting elements to eject ink onto the printing medium, wherein the starting elements in one column are energized independently of the starting elements in the other column. Since the print head in this embodiment enables a single row or more of the starting elements to be independently energized, the printing speed can be increased.
圖7展示用於較佳實施例的列印頭中的基本群組的起動元件的起動電路的示意圖。每一MOSFET的閘極電連接到起動元件的位址ADD5、ADD13、...、ADD11。當位址ADD5、ADD13、...、ADD11被觸發時，起動元件被起動信號通電，而致能加熱器1、2、...、13而隨後噴射墨滴。Figure 7 shows a schematic diagram of a starting circuit for a basic group of starting elements in a printhead of the preferred embodiment. The gate of each MOSFET is electrically connected to the address ADD5, ADD13, ..., ADD11 of the starting element. When the address ADD5, ADD13, ..., ADD11 is triggered, the starter element is energized by the start signal, and the heaters 1, 2, ..., 13 are enabled and subsequently ejected.
鑒於上述，由本發明提供的列印頭至少具有以下優點：(1)減少串擾；(2)增加相同列印頭區域中的噴嘴的數目；以及(3)改進列印速度。遵照規則1(用於使任何兩個鄰近噴嘴通電的時序之間的差為至少兩個預定時間間隔)和/或規則2(兩個連續起動的噴嘴被至少兩個其他起動元件分離)的噴嘴配置可顯著減少起動信號之間的串擾。與傳統的噴嘴配置相比，由於列印頭經傾斜且噴嘴配置在單一列中，本發明在相同的列印頭區域中含有更多的噴嘴，且其解析度優於直接安置的列印頭。因此，在相同的列印頭區域的情況下，本發明的列印頭延長了，其導致更長的列印寬幅進而得到更高的列印速度。In view of the above, the printhead provided by the present invention has at least the following advantages: (1) reducing crosstalk; (2) increasing the number of nozzles in the same printhead area; and (3) improving the printing speed. a nozzle complying with Rule 1 (the difference between the timings for energizing any two adjacent nozzles for at least two predetermined time intervals) and/or Rule 2 (two consecutively activated nozzles are separated by at least two other starting elements) The configuration can significantly reduce crosstalk between the start signals. Compared with the conventional nozzle configuration, since the print head is tilted and the nozzles are arranged in a single column, the present invention contains more nozzles in the same print head area, and its resolution is superior to that of the directly placed print head. . Thus, in the case of the same print head area, the print head of the present invention is extended, which results in a longer print width and thus a higher print speed.
雖然本發明之技術內容與特徵係如上所述，然於本發明之技術領域具有通常知識者仍可在不悖離本發明之教導與揭露下進行許多變化與修改。因此，本發明之範疇並非限定於已揭露之實施例而係包含不悖離本發明之其他變化與修改，其係如下列申請專利範圍所涵蓋之範疇。While the invention has been described with respect to the embodiments of the present invention, it will be apparent to those skilled in the art of the invention. Therefore, the scope of the invention is not limited to the disclosed embodiments, and other changes and modifications may be made without departing from the scope of the invention.
1、2、13．．．加熱器1, 2, 13. . . Heater
22．．．箭頭twenty two. . . arrow
24．．．列印掃描方向twenty four. . . Print scan direction
100．．．列印頭100. . . Print head
102．．．小孔102. . . Small hole
ADD1、ADD2、ADD3、ADD4、ADD5、ADD6、ADD7、ADD8、ADD9、ADD10、ADD11、ADD12、ADD13．．．位址ADD1, ADD2, ADD3, ADD4, ADD5, ADD6, ADD7, ADD8, ADD9, ADD10, ADD11, ADD12, ADD13. . . Address
H1、H2、H3、H4、H5、H6、H7、H8、H9、H10、H11、H12、H13、H14、H15、H299．．．噴嘴H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14, H15, H299. . . nozzle
P1、P2、P23．．．基本群組P1, P2, P23. . . Basic group
圖1A說明配置在2個交錯列中的習知噴嘴；Figure 1A illustrates a conventional nozzle disposed in two staggered columns;
圖1B說明由圖1A中的噴嘴列印的點；Figure 1B illustrates the dots printed by the nozzles of Figure 1A;
圖2A說明具有更好的列印速度的另一習知噴嘴配置；Figure 2A illustrates another conventional nozzle configuration with a better printing speed;
圖2B說明由圖2A中的噴嘴列印的點；Figure 2B illustrates the dots printed by the nozzles of Figure 2A;
圖3說明本發明的較佳實施例的列印頭的定向；Figure 3 illustrates the orientation of a printhead in accordance with a preferred embodiment of the present invention;
圖4A說明本發明的較佳實施例的噴嘴配置；Figure 4A illustrates a nozzle configuration of a preferred embodiment of the present invention;
圖4B說明基本群組中的噴嘴的位置和噴嘴的起動序列，其中在x軸的方向上的尺寸是被放大的；Figure 4B illustrates the position of the nozzle in the basic group and the starting sequence of the nozzle, wherein the dimension in the direction of the x-axis is enlarged;
圖5說明列印頭和列印媒介的相對移動；Figure 5 illustrates the relative movement of the print head and the print medium;
圖6是用於使每個基本群組中的噴嘴通電的時序圖；及Figure 6 is a timing diagram for energizing the nozzles in each of the basic groups; and
圖7是用於本發明的較佳實施例的列印頭中的基本群組的噴嘴的起動電路的示意圖。Figure 7 is a schematic illustration of a starting circuit for a substantially group of nozzles in a printhead of a preferred embodiment of the present invention.
22．．．箭頭twenty two. . . arrow
100．．．列印頭100. . . Print head
102．．．小孔102. . . Small hole
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW541245B (en) * | 2001-06-19 | 2003-07-11 | Hewlett Packard Co | Compact ink jet printhead |
| TW200933244A (en) * | 2007-11-08 | 2009-08-01 | Shibaura Mechatronics Corp | Droplet applying apparatus, droplet applying method, apparatus for manufacturing liquid crystal display panel and method for manufacturing liquid crystal display panel |
| TW200946354A (en) * | 2008-05-12 | 2009-11-16 | Qisda Corp | Print controlling method applied to a printer and related printer |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW541245B (en) * | 2001-06-19 | 2003-07-11 | Hewlett Packard Co | Compact ink jet printhead |
| TW200933244A (en) * | 2007-11-08 | 2009-08-01 | Shibaura Mechatronics Corp | Droplet applying apparatus, droplet applying method, apparatus for manufacturing liquid crystal display panel and method for manufacturing liquid crystal display panel |
| TW200946354A (en) * | 2008-05-12 | 2009-11-16 | Qisda Corp | Print controlling method applied to a printer and related printer |
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