JP2010247506A - Inkjet printer which can print two independent images by two kinds of inks having different characteristics - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To concurrently output two independent images on an identical printing medium by two kinds of different inks at once to complete printing by one process which is carried out by two times of divisional printing heretofore, thereby enhancing productivity and efficiency. <P>SOLUTION: An inkjet printer includes an input section 3 for receiving independent two pieces of image data 1, 2 to be printing targets; a first driver 8 that drives a first inkjet section 7 constituted by at least three inkjet nozzles 4, 5, 6 for forming three primary colors in accordance with a first image 1 in the independent two pieces of image data received via the input section 3; and a second driver 13 that drives a second inkjet section 12 constituted by at least three inkjet nozzles 9, 10, 11 for forming three primary colors in accordance with a second image 2 in the independent two pieces of image data received via the input section 3. The inkjet printer further includes an inkjet driving section 15 that integrally supports the first inkjet section 7 and the second inkjet section 12 and simultaneously moves them relative to a printing target material 14; and a printing target material support section 16 that holds the printing target material 14 with respect to the inkjet driving section 15. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an inkjet printer capable of printing two independent images using a subtractive color mixed ink, a light emitting ink, or a special functional ink. More specifically, it is possible to print two independent images as original drawings, and in the first image, other images are used using a light-emitting ink such as an ultraviolet reaction type that can reproduce colors when irradiated with ultraviolet light in a dark room or the like. The present invention relates to an ink jet printer capable of printing two independent images using subtractive color mixed ink.

  With recent developments in printer technology, it has become possible to accurately reproduce and print out a color image captured in a computer. For this reason, digital images based not only on color illustrations but also on color photographs can be printed on a print medium using a dot printer such as an ink jet printer.

  The fluorescent color material excited by ultraviolet light has a large particle size, and conventionally cannot be ejected by ink jet, and an image using the fluorescent color material has been conventionally made by hand drawing. However, with the recent development of paint technology, fluorescent color materials that can be ejected by inkjet have been developed (see Patent Documents 1 and 2).

  Patent Documents 3 and 4 disclose a technique for printing on a printer using red light emitting ink, green light emitting ink, and blue light emitting ink and performing color reproduction under ultraviolet light irradiation.

  JP 2002-363455 A   JP 2004-291508 A   Japanese Patent Laid-Open No. 2003-221709   JP 2003-63094 A

In general, “color” in a computer monitor is expressed by three primary colors of light, a red light emitting component, a green light emitting component, and a blue light emitting component. On the other hand, the expression of color on a print medium such as paper is performed using the three primary colors, cyan component, magenta component, and yellow component. This difference is caused by the difference between expressing color by emitting light by itself or expressing color by reflecting light from the outside, and appears as a difference between additive color mixing and subtractive color mixing.
Therefore, a color conversion processing means for performing color conversion for expressing the colors represented by the three primary colors of light in the computer monitor in the three primary colors of the computer monitor is incorporated in the printer that is generally spread. Yes.

The expression methods that can be performed by printing are expected to diversify with the spread of functional inks, such as temperature-sensitive color-changing inks (color changes with temperature), lamaine (sparkling and coloring), reflective inks (reflecting when light strikes), Various functional inks such as gel inks (thick film plates are used to make them three-dimensional and glossy) and ultraviolet light-emitting inks (inks that emit light in response to ultraviolet light) have been developed. This functional ink is different from the conventional spot color ink. Special color inks are basic CMYK ink plus gold, silver, pearl and other colors that are difficult to express in CMYK.
The functional ink is an ink having various functions as described above, and basically has primary colors such as CMYK and RGB. In the case of luminescent ink, the primary color changes from RGB to RGB, and CMYK is the primary color if it is a reflected color.

If the inks have the same function, it does not make sense to print two independent images on one print medium at the same time. It is meaningful to use inks with different functionalities that would be necessary if two images were overlapped and output as one image if the same functional ink was used.
When the image of FIG. 11 is printed using general CMYK ink and the image of 2 is printed with temperature-sensitive color changing ink, 14 images are completed.
This has the effect of adding 2 to 14 images when the printed material that normally looks like 1 reaches a certain temperature.

If different functional inks are used to print the image of Fig. 11 using ordinary CMYK inks and the image of 2 using ultraviolet light-emitting inks, the printed matter that normally looks like 1 is ultraviolet (black) in the dark. The effect of changing to printed matter 2 can be obtained by irradiating light)

In the conventional method, two CMYK printers must be prepared, and different inks must be installed, and printing must be performed twice. Printing is performed once with a printer with normal ink, and then with a printer with special functional ink. There is only a way.
As specified in the explanation of Fig. 3, Monitor 1 and Monitor 2 cannot be represented by one image. Since both monitor 1 and monitor 2 use full-color images, the color will overlap on the monitor, making it impossible to determine which image will be output with which ink.
Therefore, a driver that recognizes two independent images is required.

  Today, there is no printing technology using a popular dot printer. The present invention has been made in view of the above circumstances, and an object thereof is to provide an ink jet printer.

  In order to solve the above problems, an ink jet printer according to the present invention includes an input unit that receives two independent image data to be printed, and a first image of the two independent image data received by the input unit. The three primary colors are composed of the first driver that drives the first ink jet unit including at least three ink jet nozzles that constitute the three primary colors and the second image of the two independent image data received by the input unit. A second driver that drives a second ink jet unit that includes at least three ink jet nozzles, and a first ink jet unit and a second ink jet unit that are integrally supported and simultaneously relative to a print object. An inkjet drive unit to be moved, and a print object support unit for holding the print object with respect to the inkjet drive unit; Provided.

In order to solve the above-described problems, at least six head nozzles are required for the printer.
For example, in the case of UV (ultraviolet) light-emitting ink, there are six head nozzles when superimposing three RGB colors and three IR (infrared) light-emitting inks RGB in the case of UV (ultraviolet) light-emitting ink. good.
In addition, in the case of CMYK for normal ink and RGB for UV (ultraviolet) light-emitting ink, it is sufficient to have seven nozzles. Further, if CMYK for normal ink and CMYK for temperature-sensitive color changing ink, eight nozzles are required.
A full color cannot be reproduced with less than 3 primary colors, so at least 6 head nozzles are required.
When used with less than three colors, it is treated as a special color and only adds an insufficient color to the basic CMYK. This technology is still used today.

The image of FIGS. 1 to 1 is output with normal CMYK inks, and 14 is completed when output is performed with Ramacink CMYK inks on the same print medium. The effect of glittering and glittering can be obtained only in the area of 2. Since the area of the image of 1 is normal ink, there is no change.

  The image of FIGS. 2 to 1 is output by CMYK of normal ink, and 14 is completed when it is output by ultraviolet light emitting ink on the same printing medium. Normally, there is only one printed matter, but by irradiating ultraviolet rays, the printing of the second light is emitted and the effect of appearing as the printed matter of 3 is obtained.

There is a driver 3 that recognizes the images 1 and 2 separately from FIGS. 3A and 3B. There are 4 printing inks of different characteristics on the same print medium, and the images 5 and 6 are recognized separately. There is a driver 7 that prints ink of different characteristics on the same print medium.
Based on the above, it is possible to print in an overlapping manner such as 1 and 2 or 5 and 6, or to print on an arbitrary position on the same print medium.

  According to the present invention, two independent images can be simultaneously output on the same print medium with two different inks at a time.

According to the present invention, it is possible to perform processing that cannot be performed unless printing is performed twice in the past, and the productivity and efficiency can be improved.

According to the present invention, when different inks can be printed in two positions where printing can be performed at a point where printing is desired, a deviation occurs. However, since the present invention prints once, there is no fear of deviation.

(Embodiment 1)
An embodiment of the present invention is shown in FIG. FIG. 1 is an explanatory diagram of a configuration of an ink jet printer according to an embodiment of the present invention. FIG. 2 is an explanatory diagram of an image printed by the inkjet printer.
The ink jet printer according to the present embodiment includes an input unit 3 that receives two independent image data 1 and 2 to be printed, and a first image 1 of the two independent image data received by the input unit 3. From the first driver 8 for driving the first ink jet unit 7 composed of at least three ink jet nozzles 4, 5, 6 constituting the three primary colors, and the independent image data received by the input unit 3. From the second image 2, a second driver 13 that drives a second ink jet unit 12 composed of at least three ink jet nozzles 9, 10, 11 constituting the three primary colors, a first ink jet unit 7, and a second ink jet The inkjet drive unit 15 that integrally supports the inkjet unit 12 and simultaneously moves relative to the print object 14 and the print object 14 are And a print object support portion 16 for holding against Kujetto driver 15.

  From FIG. 1, the driver originally sends a control signal to one head for one image, but the present invention is made possible by developing a driver that performs two processes using the driver 8 and the driver 13 as one driver.

The printers with 8 nozzles in the head are originally divided into CMYK and LK, LLK, LC, LM or CMYK and C'M'Y'K '.
Therefore, separately from the development of the driver, the lip software for controlling the head nozzle may control each independent image data as CMYK for one and C'M'Y'K 'for the other.

  In the example shown in FIG. 2, in the ink cartridge (100), blue ink is stored in the section of the ink cartridge (101) corresponding to the section in which cyan ink was stored, and the ink cartridge (100). The ink cartridge (101) corresponding to the compartment in which the magenta ink was accommodated contains red light-emitting ink, and the ink cartridge (100) contains the yellow ink in the compartment. The corresponding ink cartridge (101) contains green light-emitting ink.

  The present invention brings about a change effect according to the characteristics of the functional ink, and the effect of changing the printed expression. For temperature-sensitive discoloration ink, the printed matter changes depending on the temperature.

  INDUSTRIAL APPLICABILITY The present invention can be suitably used for printing printed materials used under ultraviolet light, interior decoration printed materials, table cloths, and the like.

  It is a flowchart of the printing method which concerns on Embodiment 1 of this invention.   It is a figure which shows one Embodiment of the ink setting process of the printing method which concerns on Embodiment 1 of this invention.   It is a figure which shows embodiment of the printing method which concerns on Embodiment 1 of this invention.

Claims (3)

An input unit that accepts two independent image data to be printed;
A first driver for driving a first ink jet unit comprising at least three ink jet nozzles constituting three primary colors from a first image of the two independent image data received by the input unit; A second driver for driving a second ink jet unit comprising at least three ink jet nozzles constituting three primary colors from the second image of the two independent image data received by the unit; and the first driver An inkjet drive unit that integrally supports the inkjet unit and the second inkjet unit and simultaneously moves relative to the print object;
An inkjet printer capable of printing two independent images, comprising: a print object support unit that holds the print object with respect to the inkjet drive unit.   2. The cyan ink, the magenta ink, and the yellow ink that perform subtractive color mixing are set on at least three ink jet nozzles of at least one of the first ink jet section and the second ink jet section. Inkjet printer.   3. The ink jet printer according to claim 1, wherein at least three ink jet nozzles of the first ink jet portion or the second ink jet portion are filled with three different colors of ink by ultraviolet reaction issue ink. 4. .

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