WO2013123649A1 - 一种喷墨打印装置及打印方法 - Google Patents

一种喷墨打印装置及打印方法 Download PDF

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Publication number
WO2013123649A1
WO2013123649A1 PCT/CN2012/071456 CN2012071456W WO2013123649A1 WO 2013123649 A1 WO2013123649 A1 WO 2013123649A1 CN 2012071456 W CN2012071456 W CN 2012071456W WO 2013123649 A1 WO2013123649 A1 WO 2013123649A1
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Prior art keywords
ink
row
printing
color
nozzles
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PCT/CN2012/071456
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English (en)
French (fr)
Inventor
张原�
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北京美科艺数码科技发展有限公司
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Application filed by 北京美科艺数码科技发展有限公司 filed Critical 北京美科艺数码科技发展有限公司
Priority to PCT/CN2012/071456 priority Critical patent/WO2013123649A1/zh
Priority to CN201280051856.0A priority patent/CN103946027B/zh
Priority to US14/353,030 priority patent/US20140292855A1/en
Publication of WO2013123649A1 publication Critical patent/WO2013123649A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/21—Ink jet for multi-colour printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/145—Arrangement thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/21—Ink jet for multi-colour printing
    • B41J2/2107—Ink jet for multi-colour printing characterised by the ink properties
    • B41J2/2114—Ejecting specialized liquids, e.g. transparent or processing liquids

Definitions

  • the present invention relates to an ink jet printing apparatus, and more particularly to an ink jet printing apparatus capable of realizing a plurality of printing modes and a printing method thereof.
  • Inkjet printing ejects ink droplets onto a print medium through a printhead to form a desired print image.
  • the observer sees that each ink or combination of inks has a specific color on the print medium (eg, yellow, cyan, magenta, etc.). This requires that the printed image be printed on a white or near-white print medium to ensure that the color on the final printed image that the viewer sees is correct, otherwise the image seen by the viewer will be interfered by the color at the bottom of the printed image.
  • a non-white print medium such as a color print medium or a transparent print medium
  • a layer of white ink on the print medium as a background
  • the white ink background prevents color images from being damaged by the undertones of black or other colored print media.
  • a disadvantage of using this printing technique to print a color image on a non-white print medium is the need to add a step of separately printing the foreground or background color. This additional step may require the formation of a white ink layer in another separate printing system, which increases printing costs and requires more printing time.
  • some inkjet printing systems provide a set of printheads that are specifically designed to print white ink onto a print medium. As shown in Fig. 1 and Fig. 2, a white ink print head is disposed at the front end and the rear end of the color ink print head. The disadvantage of this method is that the depth of the bottom surface of the print head is larger and the depth of the corresponding print cart is also increased.
  • an inkjet printing device and a printing method are proposed.
  • the invention adopts two sets of coaxial nozzles for two or three segments for printing color ink or white ink, respectively.
  • the nozzle has a low utilization rate and a slow printing speed.
  • the conventional inkjet printing method is used to print the light box cloth.
  • the color density of the single layer image is suitable during the daytime, but the color of the image will be lighter under the illumination of the light at night.
  • the prior art method is to use the same image twice to ink. Increasing the concentration of the color, in this case, the color density of the image is just right under the illumination of the night, but the concentration of the image color is too strong during the day.
  • an object of the present invention is to provide an ink jet printing apparatus and a printing method therefor.
  • the present invention provides an ink jet printing apparatus comprising at least one head for spraying coated ink; a plurality of heads for jetting color ink; and a control system for controlling the operation of each head;
  • the coating ink nozzle and the color ink nozzle are arranged in three rows, and the number of the same color ink nozzles is equal.
  • the first row of nozzles is a color ink nozzle
  • the second row of nozzles is a coating ink nozzle
  • the third row of nozzles is a color ink. Nozzle.
  • the first row of nozzles and the second row of nozzles are spaced apart from each other or end to end in the nozzle arrangement direction.
  • the second row of nozzles and the third row of nozzles are spaced apart from each other or end to end in the nozzle arrangement direction.
  • the coating ink is a white ink.
  • the coating ink is a transparent ink.
  • the second row of coated ink jets are all used to spray white ink.
  • the second row of coated ink jets are all used to eject transparent ink.
  • one half of the second discharge coated ink jet head is used to spray white ink, and the other half is used for the head transparent ink.
  • the inkjet printing device printing method of the present invention is characterized in that: the control system controls the first row of color ink nozzles to eject a first print image on a printing medium, and the second row of coating ink nozzles sprays a coating ink on the first On the printed image, the third row of color ink jets ejects the second print image onto the coated ink to achieve a dual image print mode.
  • the first print image and the second print image are the same print image.
  • the transparency of the first printed image is adjustable.
  • the first print image and the second print image are different print images.
  • the printing method of the inkjet printing device of the present invention is characterized in that the control system controls the first row of color ink nozzles to eject the printed image onto the printing medium, and then controls the second row of the coating ink nozzle to spray the coating ink on the printed image, and thirdly The row of color ink nozzles does not eject ink to achieve the foreground color printing mode.
  • the printing medium is a transparent material such as glass.
  • the inkjet printing device printing method of the present invention is characterized in that the control system controls the second row of coating ink spray coating ink on the printing medium, and then controls the third row of color ink nozzles to eject the printed image onto the coating ink, first The row of color ink nozzles does not eject ink to achieve a background color printing mode.
  • the print medium is a non-white print medium.
  • the printing method of the inkjet printing device of the present invention is characterized in that the control system controls the first row of color ink nozzles and the third row of color ink nozzles to simultaneously eject the printed image on the printing medium, and the second row of coating ink The nozzle does not ink.
  • control system controls the first row of color ink heads and the third row of color ink heads to eject print data of the same print image to realize two-speed printing.
  • Inkjet printing, background color printing, and double-sided printing can be achieved by controlling the inkjet nozzle and the color inkjet nozzle.
  • the images printed on both sides can be the same or different.
  • Two-speed printing can be achieved without printing the coating ink, and since the nozzle for printing the color ink is arranged in two rows, the generation of streaks during printing can be reduced.
  • FIG. 1 is a schematic view of an inkjet printing apparatus in the prior art
  • FIG. 2 is a schematic view of another inkjet printing device in the prior art
  • FIG. 3 is a schematic view of still another inkjet printing device in the prior art
  • Figure 5a is a schematic view of an ink jet printing apparatus in one embodiment of the present invention.
  • Figure 5b is a schematic view of an ink jet printing apparatus in another embodiment of the present invention.
  • Figure 6 is a flow chart of the inkjet printing method in the present invention.
  • FIG. 7 is a schematic diagram of foreground printing in a multi-channel printing mode according to the present invention.
  • FIG. 8 is a schematic diagram of background color printing in a multi-channel printing mode according to the present invention.
  • Figure 9 is a schematic diagram of two-speed printing in a single channel printing mode in the present invention.
  • an inkjet printing apparatus in one embodiment of the present invention includes a first row of nozzles, a second row of nozzles, a third row of nozzles, and a control system.
  • the first row of nozzles and the third row of nozzles are used for jetting color. Ink, and the same color ink is sprayed with two nozzles, and the second row of nozzles is used to spray the coating ink.
  • the first row of nozzles includes four nozzles c1, m1, y1, k1 for ejecting color inks
  • the second row of nozzles includes two nozzles w1, w2 for spraying the coating ink
  • the third row of nozzles includes four nozzles for ejecting color inks c2 , m2, y2, k2; wherein, the first row of nozzles c1, m1, y1, k1 and the second row of nozzles w1, w2 are arranged along the nozzle arrangement direction, the second row of nozzles w1, w2 and the third row of nozzles c2, m2 , y2, k2 are arranged along the direction of the nozzle arrangement, and the control system can realize four printing modes of the foreground color printing mode, the background color printing mode, the dual image printing mode, and the two-speed printing mode by controlling the operation of the nozzle.
  • the coating ink in the present invention is a white ink or a transparent ink.
  • the heads w1, w2 of the spray coating ink in the present invention may both spray white ink or both of the transparent color inks, and one of the heads w1 may spray white ink, and the other head w2 may spray transparent color ink. As shown in FIG.
  • the first row of nozzles c1, m1, y1, k1 and the second row of nozzles w1, w2 are connected end to end in the nozzle arrangement direction, and the second row of nozzles w1, w2 and The third row of nozzles c2, m2, y2, k2 meet end to end in the direction of the nozzle arrangement.
  • the first row of color ink nozzles c1, m1, y1, k1 and the second row of coating ink nozzles w1, w2 perform inkjet work, and the third row of color ink nozzles c2, m2, y2, k2 do not. ink jet.
  • the second row of coating ink nozzles w1, w2 and the third row of color ink nozzles c2, m2, y2, k2 perform inkjet work, and the first row of color ink nozzles c1, m1, y1, k1 are not ink jet.
  • the first row of color ink nozzles c1, m1, y1, k1, the second row of coated ink nozzles w1, w2, the third row of color ink nozzles c2, m2, y2, k2 simultaneously perform inkjet work .
  • the first row of color ink nozzles c1, m1, y1, k1 and the third row of color ink nozzles c2, m2, y2, k2 perform inkjet work, and the second row of coated ink nozzles w1, w2 ink jet.
  • the control system receives the print image data, and the user selects a single channel or multi-channel mode according to the printing requirement, and can perform the two-speed printing mode in the single channel mode, and controls The system controls the first row of color ink nozzles and the third row of color inks to spray the color image. Since the same color ink is printed by two serial nozzles, the speed can be doubled; in the multi-channel mode, the user has three options, respectively.
  • the first row of color ink nozzles and the second row of coating ink nozzles work in the foreground color printing mode, and the third row of color ink nozzles does not work; in the background color In the print mode, the first row of color ink nozzles does not work, the second row of coating ink nozzles and the third row of color ink nozzles do not work; in the dual image printing mode, the first row of color ink nozzles, the second row of coated ink nozzles Working with the third row of color ink nozzles, wherein the first row of color ink nozzles and the third row of color ink nozzles are sprayed
  • the image data may be different for the same, when the first row of the color ink jet head and the image data of the third row of the color ink jet head is the same, wherein a layer of opacity and color images can be adjusted.
  • the dual image mode printing device in the multi-channel printing mode is as shown in FIG. 5, in this mode, the vertical direction of the printing carriage is controlled to make a round-trip motion, the first row of color ink nozzles, the second row of coating ink nozzles and the third The color ink nozzles are all printed.
  • the control system controls the ink to eject the first print image on the printing medium from the color ink nozzles c1, m1, y1, k1, and then controls the second row of coating ink nozzles w1, w2
  • the white ink is on the first printed image, and finally the third row of color ink jets c2, m2, y2, k2 is sprayed onto the white ink layer.
  • the first print image and the second print image in the present invention may be the same image or different images.
  • the print medium is a translucent medium, such as when printing a light box cloth
  • the first print image and the second print image are the same print image, and the transparency of the first print image can be adjusted. With proper transparency, the color density of the printed image on the light box cloth at night and during the day is guaranteed to be appropriate.
  • the first print image and the second print image are the same or different images, and the transparency of the first print image and the second print image are both unadjustable.
  • FIG. 7 is a schematic diagram of a foreground color printing in a multi-channel printing mode.
  • the control system controls the vertical direction of the printing carriage to perform a reciprocating motion, and the first row of color ink nozzles and the second row of coating ink nozzles perform printing operations. Three rows of color ink nozzles do not work.
  • the moving direction of the printing medium is as shown in the figure.
  • the control system controls the first color ink nozzles c1, m1, y1, k1 to eject the printed image onto the printing medium, and then controls the second row of coating ink nozzles w1, w2 to spray the coating ink to Print on the image.
  • the print medium in this mode is a transparent medium such as glass.
  • Figure 8 is a schematic diagram of background color printing in the multi-channel printing mode, in which the printing carriage controls the vertical paper feeding direction to make a round-trip motion, the third row of color ink nozzles and the second row of coating ink nozzles perform printing work, and the first row of colors The ink nozzle does not work.
  • the control system controls the second row of coating ink nozzles w1, w2 to spray the coating ink onto the printing medium, and then the third row of color ink nozzles c2, m2, y2, k2 spray the printed image and the coating ink .
  • the print medium printed in the background color is non-white. To increase the color vividness, a layer of white ink is printed on the non-white print medium.
  • the coating ink of the present invention can also be a color ink according to actual needs.
  • Figure 9 is a schematic diagram of two-speed printing in single-channel printing mode.
  • the vertical direction of the printing carriage is controlled to make a round-trip motion, the first row of color ink nozzles and the third row of color ink nozzles are used for printing work, and the coating ink nozzles are coated. Not working.
  • the control system controls the ink to be ejected from the first row of color ink nozzles c1, m1, y1, k1 and the third row of color ink nozzles c2, m2, y2, k2. Since the two nozzles of each color ink are printed in this mode, the printing speed is twice that of the single nozzle.
  • the color ink jet head and the coated ink jet head in the present invention can be connected in series with one or more heads to increase the printing speed.

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Abstract

公开了一种喷墨打印装置及其打印方法，所述喷墨打印装置包括：至少一个喷射涂层油墨的喷头；多个喷射彩色油墨的喷头；用于控制各喷头的工作的控制系统，所述涂层油墨喷头和彩色油墨喷头成三排排列，第一排喷头为彩色油墨喷头（c1， m1，y1， k1），第二排喷头为涂层油墨喷头（w1，w2），第三排喷头为彩色油墨喷头（c2， m2，y2， k2）。所述打印方法为所述控制系统控制所述第一排彩色油墨喷头（c1， m1，y1， k1）喷射第一打印图像于打印介质上，第二排涂层油墨喷头（w1，w2）喷射涂层油墨于第一打印图像上，第三排彩色油墨喷头（c2， m2，y2， k2）喷射第二打印图像于涂层油墨上实现双图像打印模式。所述喷墨打印装置可实现前景色打印、背景色打印、双图像打印及双速彩色打印等打印模式，在双图像打印模式下的图像可以相同也可以不同，当图像为相同时，其中一层图像的透明度可以调节。

Description

一种喷墨打印装置及打印方法 技术领域
本发明涉及一种喷墨打印装置，具体说涉及一种可实现多种打印模式的喷墨打印装置及其打印方法。
背景技术
喷墨打印通过喷头喷射墨滴到打印介质上形成所需的打印图像。观察者看每一种油墨或者多种油墨组合的水在打印介质上有一个特定的颜色（比如：黄色、青色、品红色等）。这要求打印图像最好打印在白色或者接近白色的打印介质上以保证观察者看到的最终打印图像上的颜色是正确的，否则，观察者看到的图像会被打印图像底部的颜色干涉。
因此，为了在非白色打印介质（如：彩色打印介质或者透明打印介质，）上打印彩色图像，一般在打印彩色图像之前，需要在打印介质上打印一层白色油墨作为背景。例如，需要在一个黑色或者彩色打印介质上打印一个彩色图像时，首先在打印介质上需要打印彩色图像的区域打印一层白色油墨，然后在将彩色图像打印在白色油墨层上。白色油墨底色可以避免彩色图像被黑色或其它彩色打印介质的底色损坏。
当需要在透明介质上打印时，首先在打印介质的背面打印彩色油墨，然后在彩色打印图像上打印一层白色油墨，这样可以在打印介质的前端透过打印介质观察都打印图像，也就是人们常说的前景色。这层白色前景色作为彩色图像的背景，这样从打印介质的前端观察打印图像使其色彩显示更正常。
采用这种打印技术在非白色打印介质上打印彩色图像的缺点是，需要增加一个单独打印前景色或者背景色的步骤。这个另增的步骤可能需要在另一独立打印系统的来形成白色油墨层，这样增加打印成本和需要耗费更多的打印时间。或者，有些喷墨打印系统提供一组专门用于打印白色油墨到打印介质上的喷头。如图1和图2所示，在彩色油墨打印喷头的前端和后端各设置一白色油墨打印喷头，这种方法的缺点安装打印喷头的底板深度较大相应的打印小车的深度也增加。
发明专利WO2006/078799中提出一种喷墨打印装置及打印方法，如图3所示，该发明中采用两组共轴的喷头分两段或三段分别用于打印彩色油墨或白色油墨，由于其喷头喷孔利用率低，打印速度慢。
发明专利US2005/0162451A1中也提出一种喷墨打印装置及打印方法，如图4所示，该发明中的喷射不同色油墨的喷头纵向排列，其喷头排列占地宽，对底板和小车的要求较高。
采用常规喷墨打印方法打印灯箱布，单层图像色彩的浓度在白天的时候正合适，但晚上在灯光的照射下，图像色彩会较淡，现有技术的方法是同一图像打两遍墨以增加色彩的浓度，这样的话，晚上在灯光的照射下，图像色彩浓度正合适，但白天的时候图像色彩的浓度又太浓。
发明内容
针对现有技术存在的问题，本发明的目的在于提出一种喷墨打印装置及其打印方法。
为实现上述目的，本发明提出一种喷墨打印装置，包括至少一个喷射涂层油墨的喷头；多个喷射彩色油墨的喷头；一控制系统，用于控制各喷头的工作；其特征是，所述涂层油墨喷头和彩色油墨喷头成三排排列，喷射同一色彩色油墨喷头的数量相等，第一排喷头为彩色油墨喷头，第二排喷头为涂层油墨喷头，第三排喷头为彩色油墨喷头。
上述喷墨打印装置中，所述第一排喷头与第二排喷头沿喷嘴排列方向间隔设置或首尾相接。
上述喷墨打印装置中，所述第二排喷头与第三排喷头沿喷嘴排列方向间隔设置或首尾相接。
上述喷墨打印装置中，所述涂层油墨为白色油墨。
上述喷墨打印装置中，所述涂层油墨为透明色油墨。
上述喷墨打印装置中，所述第二排涂层油墨喷头全部用于喷射白色油墨。
上述喷墨打印装置中，所述第二排涂层油墨喷头全部用于喷射透明色油墨。
上述喷墨打印装置中，所述第二排涂层油墨喷头中的一半用于喷射白色油墨，另一半用于喷头透明色油墨。
本发明喷墨打印装置打印方法，其特征是，所述控制系统控制所述第一排彩色油墨喷头喷射第一打印图像于打印介质上，第二排涂层油墨喷头喷射涂层油墨于第一打印图像上，第三排彩色油墨喷头喷射第二打印图像于涂层油墨上实现双图像打印模式。
上述喷墨打印方法中，所述第一打印图像和第二打印图像为相同的打印图像。
上述喷墨打印方法中，所述第一打印图像的透明度为可调节的。
上述喷墨打印方法中，所述第一打印图像和第二打印图像为不同的打印图像。
本发明喷墨打印装置打印方法，其特征是，控制系统控制第一排彩色油墨喷头喷射打印图像至打印介质上，然后控制第二排涂层油墨喷头喷射涂层油墨在打印图像上，第三排彩色油墨喷头不喷射油墨，实现前景色打印模式。
上述喷墨打印方法中，所述打印介质为透明材质的介质，如玻璃。
本发明喷墨打印装置打印方法，其特征是，控制系统控制第二排涂层油墨喷射涂层油墨在打印介质上，然后控制第三排彩色油墨喷头喷射打印图像至涂层油墨上，第一排彩色油墨喷头不喷射油墨，实现背景色打印模式。
上述喷墨打印方法中，所述打印介质为非白打印介质。
本发明喷墨打印装置打印方法，其特征是，包括：控制系统控制所述第一排彩色油墨喷头和第三排彩色油墨喷头同时喷射打印图像于打印介质上，所述第二排涂层油墨喷头不喷墨。
上述喷墨打印方法中，所述控制系统控制第一排彩色油墨喷头和第三排彩色油墨喷头喷射同一打印图像的打印数据实现双速打印。
相对于现有技术，本发明的优点如下：
1. 通过控制涂层油墨喷头和彩色油墨喷头喷墨可实现前景色打印、背景色打印、双面打印多种打印模式。
2. 双面打印的图像可以一样，也可以不一样。
3. 双面打印的图像一样时，其中一层图像的透明度可以调节。
4. 不打印涂层油墨时能实现双速打印，且由于打印彩色油墨的喷头分两排设置，可减少打印过程中斑纹的产生。
附图说明
图1为现有技术中的喷墨打印装置示意图；
图2为现有技术中的另一喷墨打印装置示意图；
图3为现有技术中的又一喷墨打印装置示意图；
图4为现有技术中的还一喷墨打印装置示意图；
图5a为本发明的一个实施例中的喷墨打印装置示意图；
图5b为本发明的另一个实施例中的喷墨打印装置示意图；
图6为本发明中的喷墨打印方法流程图；
图7为本发明中多通道打印模式中前景色打印示意图；
图8为本发明中多通道打印模式中背景色打印示意图；
图9为本发明中单通道打印模式中双速打印示意图。
具体实施方式
下面根据附图详细说明本发明的喷墨打印装置及打印方法。
如图5a所示，本发明一个实施例中的喷墨打印装置包括第一排喷头、第二排喷头、第三排喷头和一控制系统，第一排喷头和第三排喷头用于喷射彩色油墨，且喷射同一色彩色油墨均使用两个喷头，第二排喷头用于喷射涂层油墨。第一排喷头包括四个喷射彩色油墨的喷头c1，m1，y1，k1，第二排喷头包括两个喷射涂层油墨的喷头w1，w2；第三排喷头包括四个喷射彩色油墨的喷头c2，m2，y2，k2；其中，第一排喷头c1，m1，y1，k1与第二排喷头w1，w2沿喷嘴排列方向间隔设置，第二排喷头w1，w2与第三排喷头c2，m2，y2，k2沿喷嘴排列方向间隔设置，控制系统通过控制喷头的工作可实现前景色打印模式、背景色打印模式、双图像打印模式，双速打印模式四种打印模式。本发明中的涂层油墨为白色油墨，也可以为透明色油墨。本发明中的喷射涂层油墨的喷头w1，w2可以都喷射白色油墨，也可以都喷射透明色油墨，还可以其中一个喷头w1喷射白色油墨，另一个喷头w2喷射透明色油墨。如图5b所示，本发明的喷墨打印装置中的第一排喷头c1，m1，y1，k1与第二排喷头w1，w2沿喷嘴排列方向首尾相接，第二排喷头w1，w2与第三排喷头c2，m2，y2，k2沿喷嘴排列方向首尾相接。
在前景色打印模式下，第一排彩色油墨喷头c1，m1，y1，k1和第二排涂层油墨喷头w1，w2进行喷墨工作，第三排彩色油墨喷头c2，m2，y2，k2不喷墨。
在背景色打印模式下，第二排涂层油墨喷头w1，w2和第三排彩色油墨喷头c2，m2，y2，k2进行喷墨工作，第一排彩色油墨喷头c1，m1，y1，k1不喷墨。
在双图像打印模式下，第一排彩色油墨喷头c1，m1，y1，k1、第二排涂层油墨喷头w1，w2、第三排彩色油墨喷头c2，m2，y2，k2同时进行喷墨工作。
在双速打印模式下，第一排彩色油墨喷头c1，m1，y1，k1和第三排彩色油墨喷头c2，m2，y2，k2进行喷墨工作，第二排涂层油墨喷头w1，w2不喷墨。
图6为本发明的喷墨打印方法的流程图，开始打印时，控制系统接收打印图像数据，用户根据打印需求选择单通道或者多通道模式，在单通道模式下可进行双速打印模式，控制系统控制第一排彩色油墨喷头和第三排彩色油墨喷涂喷射彩色图像，由于同一色油墨使用两颗串接的喷头打印，其速度可提高两倍；在多通道模式下用户有三种选择，分别为前景色打印模式，背景色打印模式和双图像打印模式，在前景色打印模式下第一排彩色油墨喷头和第二排涂层油墨喷头工作，第三排彩色油墨喷头不工作；在背景色打印模式下第一排彩色油墨喷头不工作，第二排涂层油墨喷头和第三排彩色油墨喷头不工作；在双图像打印模式下，第一排彩色油墨喷头、第二排涂层油墨喷头和第三排彩色油墨喷头同时工作，其中第一排彩色油墨喷头和第三排彩色油墨喷头喷射的图像数据可以为相同也可以为不同，当第一排彩色油墨喷头和第三排彩色油墨喷头喷射的图像数据为相同时，其中一层彩色图像的透明度为可以调节的。
下面通过实施例分别说明采用本发明的喷墨打印装置可实现多种打印模式。
实施例一
多通道打印模式下的双图像模式的打印装置如图5所示，在该模式下控制打印小车垂直走纸方向做往返运动，第一排彩色油墨喷头、第二排涂层油墨喷头及第三排彩色油墨喷头均进行打印工作，打印时，控制系统控制油墨从彩色油墨喷头c1，m1，y1，k1喷射第一打印图像于打印介质上，然后控制第二排涂层油墨喷头w1，w2喷射白色油墨于第一打印图像上，最后控制第三排彩色油墨喷头c2，m2，y2，k2喷射第二打印图像于白色油墨层上。本发明中的第一打印图像和第二打印图像可以为相同的图像，也可以为不同的图像。
当打印介质为半透明介质，如在打印灯箱布时，第一打印图像和第二打印图像为相同的打印图像，其第一打印图像的透明度为可以调节。通过合适的透明度可保证在夜晚和白天灯箱布上打印图像的色彩浓度均合适。
当打印介质为透明材质，如玻璃时，第一打印图像和第二打印图像为相同或不同的图像，且第一打印图像和第二打印图像的透明度均为不可调节的。
实施例二
图7为多通道打印模式下的前景色打印示意图，在该模式下控制系统控制打印小车垂直走纸方向做往返运动，第一排彩色油墨喷头和第二排涂层油墨喷头进行打印工作，第三排彩色油墨喷头不工作。打印介质的运动方向如图所示，控制系统控制第一彩色油墨喷头c1，m1，y1，k1喷射打印图像到打印介质上，然后控制第二排涂层油墨喷头w1，w2喷射涂层油墨到打印图像上。该模式下的打印介质为透明介质，如玻璃。
实施例三
图8为多通道打印模式中背景色打印示意图，在该模式下控制打印小车垂直走纸方向做往返运动，第三排彩色油墨喷头、第二排涂层油墨喷头进行打印工作，第一排彩色油墨喷头不工作。打印时，控制系统控制第二排涂层油墨喷头w1，w2将涂层油墨喷色到打印介质上，然后第三排彩色油墨喷头c2，m2，y2，k2喷射的打印图像与涂层油墨上。通常背景色打印的打印介质为非白色的，为增加色彩鲜艳度，在非白打印介质上先打印一层白色油墨。本发明的涂层油墨也可以根据实际需要为一颜色油墨。
实施例四
图9为单通道打印模式下的双速打印示意图，在该模式下控制打印小车垂直走纸方向做往返运动，第一排彩色油墨喷头和第三排彩色油墨喷头进行打印工作，涂层油墨喷头不工作。该模式下只打印单层彩色图像，不打印涂层油墨。打印时，控制系统控制油墨从第一排彩色油墨喷头c1，m1，y1，k1和第三排彩色油墨喷头c2，m2，y2，k2中喷出。由于在该模式下每一色墨水彩色两颗喷头打印，因此其打印速度为单颗喷头打印速度的两倍。
本发明中的彩色油墨喷头和涂层油墨喷头可以串接一个或多个喷头以提高打印速度。
需要指出的是根据本发明的具体实施方式所作的任何变形，均不脱离本发明的精神以及权利要求记载的范围。

Claims (18)

  1. 一种喷墨打印装置，包括
    a) 至少一个喷射涂层油墨的喷头；
    b) 多个喷射彩色油墨的喷头；
    c) 一控制系统，用于控制各喷头的工作；
    其特征是，所述涂层油墨喷头和彩色油墨喷头成三排排列，第一排喷头为彩色油墨喷头，第二排喷头为涂层油墨喷头，第三排喷头为彩色油墨喷头。
  2. 如权利要求1所述的喷墨打印装置，其特征是，所述打印装置中喷射同一色彩色油墨的喷头的数量相同。
  3. 如权利要求1所述的喷墨打印装置，其特征是，所述第一排喷头与第二排喷头沿喷头喷嘴排列方向间隔设置。
  4. 如权利要求1所述的喷墨打印装置，其特征是，所述第二排喷头与第三排喷头沿喷头喷嘴排列方向首尾相接。
  5. 如权利要求1所述的喷墨打印装置，其特征是，所述涂层油墨为白色油墨。
  6. 如权利要求1所述的喷墨打印装置，其特征是，所述涂层油墨为透明色油墨。
  7. 如权利要求1所述喷墨打印装置的打印方法，其特征是，所述控制系统控制所述第一排彩色油墨喷头喷射第一打印图像于打印介质上，第二排涂层油墨喷头喷射涂层油墨于第一打印图像上，第三排彩色油墨喷头喷射第二打印图像于涂层油墨上实现双图像打印模式。
  8. 如权利要求7所述喷墨打印装置的打印方法，其特征是，所述第一打印图像和第二打印图像为相同的打印图像。
  9. 如权利要求8所述喷墨打印装置的打印方法，其特征是，所述第一打印图像的透明度为可调节的。
  10. 如权利要求7所述喷墨打印装置的打印方法，其特征是，所述第一打印图像与第二打印图像为不同的打印图像。
  11. 如权利要求7所述喷墨打印装置的打印方法，其特征是，所述涂层油墨为白色油墨。
  12. 如权利要求1所述喷墨打印装置的打印方法，其特征是，所述控制系统控制第一排彩色油墨喷头喷射打印图像于打印介质上，然后控制第二排涂层油墨喷头喷射涂层油墨于打印图像上，第三排彩色油墨喷头不喷射油墨，实现前景色打印模式。
  13. 如权利要求12所述喷墨打印装置的打印方法，其特征是，所述打印介质为透明的介质，如玻璃。
  14. 如权利要求1所述喷墨打印装置的打印方法，其特征是，所述控制系统控制第二排涂层油墨喷射涂层油墨于打印介质上，然后控制第三排彩色油墨喷头喷射打印图像于涂层油墨上，第一排彩色油墨喷头不喷射油墨，实现背景色打印。
  15. 如权利要求14所述喷墨打印装置的打印方法，其特征是，所述打印介质为非白打印介质。
  16. 如权利要求14所述喷墨打印装置的打印方法，其特征是，所述涂层油墨为白色油墨。
  17. 如权利要求1所述喷墨打印装置的打印方法，其特征是，所述控制系统控制第一排彩色油墨喷头和第三排彩色油墨喷头同时喷射打印图像于打印介质上，所述第二排涂层油墨喷头不喷墨。
  18. 如权利要求17所述喷墨打印装置的打印方法，其特征是，所述控制系统控制第一排彩色油墨喷头和第三排彩色油墨喷头喷射同一打印图像的打印数据实现双速打印模式。
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