JPH10315511A - Recording method and apparatus - Google Patents

Abstract

(57) [Problem] To provide a recording method and apparatus capable of recording capable of printing at high resolution and high speed even in color printing. A droplet is ejected from a plurality of formed droplet ejection ports at the same time to fly to substantially the same spot on a recording medium. [Effects] Droplets flying from a plurality of discharge ports are mixed on a recording medium, and various colors, shades, and the like can be displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a recording method and a recording apparatus for performing printing by flying droplets of ink or the like onto a recording medium.

[0002]

2. Description of the Related Art Conventionally, in ink jet recording,
The ink jet head having the ink ejection ports formed thereon is moved to print the ink by flying the ink on the recording medium.
For example, when performing color printing, cyan, yellow, and magenta inks are ejected from ink ejection ports provided exclusively for each color, and cyan dots are formed so that they do not overlap each other on a recording medium. , Yellow dots and magenta (and even black) dots are formed on a recording medium, and the density, color, and the like are adjusted according to the variation density.

[0003]

However, in the above-mentioned conventional ink jet recording method, cyan, yellow,
By forming each dot separately on the recording medium for each color of magenta (and black), the color tone and shading are expressed.
Therefore, the resolution was naturally limited. When trying to print at high resolution, the dot diameter of each color of cyan, yellow, and magenta must be reduced, and fine processing of the print head is required. Had problems such as slowing down.

Accordingly, an object of the present invention is to solve the above problem and to provide a recording apparatus and a recording method capable of performing high-resolution printing and high-speed printing even when performing color printing or the like.

[0005]

In order to solve the above-mentioned problems, a recording method according to the present invention is directed to a recording method in which a droplet is ejected from a droplet ejection port onto a recording medium to perform printing. A plurality of outlets are formed, and the droplets fly at substantially the same location on the recording medium almost simultaneously.

By doing so, the droplets are mixed with each other at substantially the same place on the recording medium, and the mixed printing dots can be formed on the recording medium.

Here, when different types of droplets are caused to fly from the plurality of droplet discharge ports to substantially the same location on the recording medium at substantially the same time, different types of liquids are mixed, and these are mixed. By the mixing, print dots having different color tones and densities can be formed.

If the different types of droplets are droplets of different colors, printed dots of the color tone generated by mixing them can be formed on the recording medium.

If the different types of droplets are transparent droplets and colored droplets, the colored droplets form printed dots whose color tone is reduced by the transparent droplets.

If the different types of droplets are transparent and black, the black droplets will form thinner printed dots.

By changing the volume of the droplet discharged from the droplet discharge port, the print dot diameter and the mixing ratio of the droplet can be changed.

In other words, in a recording method in which a droplet is ejected from a droplet discharge port onto a recording medium to perform printing, a plurality of the droplet discharge ports are formed and substantially the same spot on the recording medium is formed. Flying the droplets separately, similar to mixing and printing the droplets on the recording medium, without printing a plurality of droplets at different positions, at the same location, for example, shading, It is possible to form print dots having different color tones and the like.

[0013] In a recording apparatus for performing printing by causing a droplet to fly onto a recording medium from a droplet ejection port, a plurality of the droplet ejection ports formed on the recording medium may be used. By providing the droplet discharge means for causing the droplets to fly at substantially the same location at substantially the same time, it is possible to form print dots of various colors, densities, and the like.

In this recording apparatus, a droplet discharge pressure forming means which communicates with the droplet discharge port and forms a pressure for discharging the droplet from the discharge port is provided, so that the droplet flies to substantially the same place. Can be done.

[0015] Each of the droplet discharge ports may be provided with droplet supply means for communicating with them and supplying different types of droplets.

If the extended portions of the ink flow paths communicating with the plurality of droplet discharge ports intersect on the recording medium, the droplets discharged from the different droplet discharge ports will be discharged on the recording medium. It becomes easy to discharge to the same location.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a recording head 1 of a recording apparatus according to the present invention.
It is a figure showing a part. A nozzle 1 for discharging color inks 11q, 12q, 13q of cyan, yellow, magenta or the like in which a dye or pigment of a predetermined color is dissolved in a solvent, respectively.
1, 12, and 13 are formed. These nozzles
The direction of each flow path is set at substantially the same location 200 of the recording medium 20 so that the recording liquid is caused to fly to the substantially same location 200 on the recording medium 20 such as paper, OHP, cloth, or the like. It is formed so as to intersect. Further, the nozzles 14 for ejecting the black recording liquid 14q are also formed in such a direction as to fly the black ejection liquid 14q to the substantially same location 200 of the recording medium 20. The nozzle denoted by 15 is a nozzle that discharges a normally transparent diluent 15q composed of water, methyl alcohol, ethyl alcohol, or the like.
The nozzle 15 is also formed in a direction intersecting at substantially the same location 200 on the recording medium 20 so that the diluting liquid flies to substantially the same location on the recording medium.

Heating elements (11h1, 11h) are provided in the nozzle.
2, 11h, 12h1, 12h2, 12h
n, 13h1, 13h2,... 13hn, 14h1, 1
4h2, hn, 15h1, 15h2, 15h
n; n means a heating element provided nth from the discharge port). Liquids such as cyan and yellow and a diluting liquid are supplied with a recording liquid and a diluting liquid, respectively, from an ink tank or the like that supplies liquid droplets from a side opposite to a discharge port of the heating element.
For example, when printing is performed by discharging a cyan recording liquid, when a pulse signal is applied to a heating element provided inside the nozzle 11, the heating element generates heat and causes the cyan recording liquid to boil. At that pressure, the cyan recording liquid flies from the nozzle onto the recording medium.

Each nozzle port (droplet discharge port) 110, 12
Reference numerals 0, 130, 140, and 150 denote tanks (droplet supply units) 11t, 12 for supplying different types of droplets, respectively.
t, 13t, 14t, and 15t. The cyan recording liquid discharge port 110 communicates with a tank 11t that supplies cyan recording liquid 11q, the yellow recording liquid discharge port 120 communicates with a tank 12t that supplies yellow recording liquid 12q,
The magenta recording liquid discharge port 130 communicates with a tank 13t that supplies the magenta recording liquid 13q. The black recording liquid discharge port 140 communicates with a tank 14t that supplies the black recording liquid 14q. The diluent discharge port 150 communicates with a tank 15t that supplies the diluent 15q. These tanks 11
t, 12t, 13t, 14t, and 15t may be provided integrally with the recording head 1 or separately from the recording head 1.

The control such as applying the discharge electric pulse to the heating element and controlling the discharge of the droplets is performed by the drive control circuit 3.
Performed by 0.

FIGS. 2 to 5 show the principle of forming printing dots on a recording medium by the recording apparatus of the present invention. Here, the case where cyan print dots are formed on the recording medium 20 will be described. In order to make the description easy to understand, the description will be made with one heating element in each nozzle schematically. In this case, as shown in FIG.
A heating element 11h is formed in the nozzle 11 filled with 1q, and a heating element 15h is formed in the nozzle 15 filled with the diluent 15q. The driving control circuit 30 generates a driving electric pulse for discharging the cyan recording liquid to the heating element 1.
When the voltage is applied to 1h, the heating element 11h generates heat, and the bubble 11a grows rapidly in the nozzle. At the same time, similarly, a driving electric signal pulse for discharging the diluent is also applied to the heating element 15h in the nozzle 15 for discharging the diluting liquid.
Generates heat and rapidly grows bubbles 15 a in the nozzle 15. FIG. 3 illustrates this state.

Next, as shown in FIG. 4, the bubbles 11a that have grown rapidly due to the heat generated by the heat generating element 11h become
The cyan recording liquid 11q is ejected from the position h to the ejection port 110 toward the point where the cyan recording liquid 11q intersects the recording medium 20 along the direction in which the nozzles 11 are formed. At the same time, the bubble 15a that has grown rapidly due to the heat generated by the heating element 15h discharges the diluent 15q from the heating element 15h to the discharge port 150. This discharge direction is an extension direction of the nozzle 15, and as shown in FIG.
q flies to the substantially same position 200 on the recording medium 20 as the cyan recording liquid 11a and mixes. If the amount of the diluting liquid to be ejected is larger than the amount of the cyan recording liquid to be ejected, the cyan color becomes lighter, and if the amount of the diluting liquid is smaller, the cyan color becomes darker.

Although the above description has been made with reference to FIGS. 2 to 5 schematically using one heating element, the description will return to FIG. 1 again.

As described above, for example, when dots are formed on a recording medium only with cyan, the cyan recording liquid 11q flies from the nozzle 11 onto the recording medium 20, and the diluting liquid 15q also Fly over 20. A plurality of heating elements 11h1, 11h2,... 11hn are provided in the nozzle 11 for flying the cyan recording liquid 11q, and the heating elements 11h1, 11h1,.
An electric signal pulse for flying the cyan recording liquid 11q is applied to the different heating elements in 11h2,... 11hn, and the cyan recording liquid 11q is ejected. Diluent 15
A plurality of heating elements 15h1, 15h2,... 15hn are provided in the nozzle 15 that discharges q in order to adjust the discharge amount of the diluent 15q in accordance with the discharge amount of the diluent 15q. Therefore, when an electric pulse signal for discharge is applied to the heating element of the ejection port closest to the ejection port of the nozzle for ejecting the recording liquid or the diluting liquid, the recording liquid from the heating element to which the electric pulse signal is applied to the nozzle port is formed. Alternatively, the diluent is discharged. When an electric pulse signal for discharge is applied to the heating element 11h1 closest to the nozzle port 110 for discharging the cyan recording liquid 11q, the cyan recording liquid between the heating element 11h1 closest to the nozzle port 110 and the nozzle port 110 is applied. 11q is discharged. At this time, if the diluting liquid 15q is not discharged, the heating element 11h1 which is closest to the nozzle port 110 by the cyan recording liquid discharging nozzle 11 is not diluted with the diluting liquid 15q.
Thus, cyan recording dots are formed on the recording medium 20 by the cyan recording liquid 11q from to the nozzle port 110. In the case where the diluent 15q is not discharged,
When an electric pulse signal for ejection is applied to the second heating element 11h2 from the nozzle port 110 in the cyan recording liquid ejection nozzle, cyan recording from the second heating element 11h2 to the nozzle port 110 from the nozzle port is performed. The liquid 11q flies over the recording medium 20, and the heating element 1 closest to the nozzle port 110
When a discharge electric pulse signal is applied to 1h1, a larger amount of cyan recording liquid is discharged, and a larger cyan recording dot is formed.

At the same time as applying an electrical pulse signal for ejection to the heating element 11h1 closest to the nozzle port 110 with the nozzle 11 for ejecting the recording liquid for cyan, the nozzle 1
When an electric pulse signal for discharge is applied to the heating element 15h1 formed at the position closest to the nozzle port 150 in step 5, the nozzle 11 for cyan recording liquid discharge causes the nozzle 11 closest to the nozzle port 110 from the nozzle port 110 to discharge. The cyan recording liquid 11q up to the port 110 is discharged onto the recording medium 20, and at the same time, the diluting liquid 1 from the nozzle port 150 to the heating element 15h1 closest to the nozzle port 150 by the diluting liquid discharging nozzle 15.
5q is ejected onto the recording medium 20, and both of the ejected cyan recording liquid 11q and the diluted liquid 15q fly to substantially the same location 200 on the recording medium 20, and are mixed on the recording medium 20. The cyan recording liquid 11q that has flown onto the recording medium 20 is diluted with the diluting liquid 15q, and thin cyan dots are recorded on the recording medium 20.

At the same time as applying an electrical pulse signal for ejection to the heating element 11h1 closest to the nozzle port 110 with the nozzle 11 for ejecting the recording liquid for cyan, the nozzle
Heating element 1 formed at a position closest to nozzle opening 150
When an electric pulse signal for ejection is applied to 5h2, the cyan recording liquid 11q from the heating element 11h1 closest to the nozzle port 110 from the nozzle port 110 of the cyan recording liquid ejection nozzle 11 is ejected onto the recording medium 20. At the same time, the diluting liquid 15q from the nozzle port 150 to the heating element 15h2 closest to the nozzle port 150 from the nozzle port 150 is discharged onto the recording medium 20 by the diluting liquid discharging nozzle 15, and the cyan recording liquid 11q and the diluting liquid 15q are discharged.
q are substantially the same location 200 on the recording medium 20.
To fly. The cyan recording liquid 11q flying on the recording medium 20 is diluted with the diluting liquid 15q flying at the same time, and forms cyan recording dots on the recording medium 20. In this case, the recording of cyan is performed by using the diluent 15q which is larger than the diluent 15q to be discharged by causing the heating element 15h1 closest to the nozzle port 150 to generate heat by the diluent discharge nozzle 15. The liquid 11q is diluted, and a thinner cyan dot is recorded on the recording medium 20.

The cyan recording liquid 11q is applied to the heating element 11h2 closest to the nozzle port 110 by the cyan recording liquid discharge nozzle 11.
Simultaneously with the application of the discharge electric pulse signal, the dilution liquid discharge nozzle 15 applies the diluent discharge electric pulse signal to the heating element 15h1 formed at the position closest to the nozzle port 150. Nozzle 11 for discharging recording liquid
Thus, the cyan recording liquid 11q is discharged onto the recording medium 20 up to the nozzle opening closest to the nozzle opening 110 on the recording medium 20, and at the same time, the nozzle 15 for diluting liquid discharge generates heat closest to the nozzle opening 150 from the nozzle opening 150. The diluting liquid 15q up to the body 15h1 is discharged onto the recording medium 20, and both the cyan recording liquid 11q and the diluting liquid 15q fly to substantially the same location 200 on the recording medium 20. The cyan recording liquid 11q that has flown onto the recording medium 20 is diluted by the diluent 15q that has flown at the same time, and forms cyan recording dots on the recording medium 20.

In this way, the cyan color density, dot diameter, and the like can be controlled.

The dot density, dot diameter, and the like of a single color such as yellow or magenta can be similarly formed on a recording medium.

A nozzle 1 for discharging a yellow recording liquid is provided.
At the same time, an electric pulse signal for discharging the yellow recording liquid 12q is applied to the heating element 12h1 closest to the nozzle port 120 in step 2, and the heat generated at the position closest to the nozzle port 150 by the diluting liquid discharge nozzle 15 is generated. When the electric pulse signal for discharging the diluting liquid is applied to the body 15h1, the yellow recording liquid 12q from the nozzle port 120 to the heating element 12h1 closest to the nozzle port 120 by the nozzle 12 for discharging the yellow recording liquid.
Is discharged onto the recording medium 20, and at the same time, the diluting liquid 15 q from the nozzle port 150 to the heating element 15 h 1 closest to the nozzle port 150 is discharged by the diluting liquid discharging nozzle 15.
The yellow recording liquid 12q and the diluting liquid 15q are ejected upward and fly to substantially the same location 200 on the recording medium 20, mixed on the recording medium 20 and flew onto the recording medium 20. The yellow recording liquid 12q is diluted by the diluting liquid 15q, and light yellow dots are formed on the recording medium 2.
Recorded on zero.

With the nozzle 12 for discharging the recording liquid for yellow,
At the same time as applying an electrical pulse signal for discharge to the heating element 12h1 closest to the nozzle port 120, the discharge electricity is applied to the heating element 15h2 formed at a position closest to the nozzle port 150 by the diluting liquid discharging nozzle 15. When a pulse signal is applied,
The yellow recording liquid 12q from the nozzle orifice 120 to the heating element 12h1 closest to the nozzle orifice 120 is discharged onto the recording medium 20 by the nozzle 12 for discharging the yellow recording liquid, and at the same time, the nozzle 15 is discharged by the nozzle 15 for discharging the diluting liquid. The diluent 15 from the port 150 to the heating element 15h2 closest to the nozzle port 150
q is ejected onto the recording medium 20 and the yellow recording liquid 11 is discharged.
Both q and the diluent 15q fly to substantially the same location 200 on the recording medium 20. The yellow recording liquid 12q flying on the recording medium 20 is the diluent 15
q, the diluent 15q is diluted with a larger amount of diluent 15q than the diluent 15q discharged when an electric pulse signal for discharge is applied to the heating element 15h1 closest to the nozzle port 150 of the diluent discharge nozzle 15; Further light yellow dots are recorded on the recording medium 20.

Further, by simultaneously flying the yellow recording liquid 12q and the magenta recording liquid 13q to substantially the same location 200 on the recording medium 20, both of them are positioned at substantially the same position on the recording medium 20. At 200, red recording dots can be formed on the recording medium 20.

For example, a nozzle 1 for discharging a yellow recording liquid
2, an electrical pulse signal for ejection is applied to the heating element 12 h 1 closest to the nozzle port 120, and at the same time, the heating element 13 h 1 formed at a position closest to the nozzle port 130 by the nozzle 13 for magenta recording liquid ejection Is applied with an electric pulse signal for ejection. Then, the yellow recording liquid 12q from the nozzle port 120 to the heating element 12h1 closest to the nozzle port 120 from the nozzle port 120 is discharged onto the recording medium 20 by the yellow recording liquid discharging nozzle 12, and at the same time, the magenta recording liquid discharging liquid is discharged. The magenta recording liquid 13q from the nozzle port 130 of the nozzle 13 to the heating element 13h1 closest to the nozzle port 130 is discharged onto the recording medium 20, and both the yellow recording liquid 12q and the magenta recording liquid 13q are used as recording medium. Flying to substantially the same location 200 on 20. A substantially same position 2 of the recording medium 20 as the magenta recording liquid 13q which has flown simultaneously with the cyan recording liquid 12q which has flown onto the recording medium 20.
00 to form red recording dots on the recording medium 20.

With the nozzle 12 for discharging the yellow recording liquid,
The heating elements 12h2, 12h3,... 1 located farther from the heating element 12h1 located closest to the nozzle port 120
When an electric pulse signal for ejection is applied to the heating element 2hn, and an electric pulse signal for ejection is applied to the heating element 13h1 closest to the nozzle port 130 of the magenta recording liquid nozzle 13 at the same time, the ejection electric pulse signal is applied to the heating element 12h1. As a result, a recording dot having a color tone of a yellow recording liquid darker than the case where the electric pulse signal is applied is formed on the recording medium 20.

The heating element 12h2, which is arranged second from the nozzle port 120 in the yellow recording liquid discharge nozzle 12, and the heating element 12h2 from the nozzle port 130 in the magenta recording liquid discharge nozzle 13
When an electric pulse signal for ejection is applied to the heating element 13h2 disposed second, the yellow recording liquid 12q and the magenta recording liquid 13q are ejected, and both are confused at the same position 200 on the recording medium 20, and Is formed.

It is assumed that the heating elements 11h1, 11h2,... 11 provided in the nozzle 11 for discharging the cyan recording liquid.
hn, heating elements 12h1, 12h2,... 12hn provided in the yellow recording liquid ejection nozzle 12, heating elements 13h1, 13h2,. It is assumed that the distances from the recording liquid ejection ports 110, 120, and 130 to the positions where the first, second,... N-th heating elements are provided in the respective nozzles are the same. When any two recording liquids of cyan, yellow and magenta are mixed, or when three recording liquids are mixed, the first heating elements are
The second heating elements, and the n-th heating elements generate heat, and the recording liquid is discharged and mixed. Since the mixing ratio is constant, recording dots having the same color tone and different discharge amounts are used. Is formed.

The heating element 12h1 formed closest to the nozzle port 120 in the yellow recording liquid discharge nozzle 12 and the heating element formed closest to the discharge port 140 in the magenta recording liquid discharge nozzle 13. A red ink dot having the same color tone as when the electric pulse signal for ejection is applied to 13h1 is formed, but the size of the recording dot becomes large because the ejection amount of the recording liquid is large. Therefore, when the color tone is displayed by using the size of the dot area, the amount of the recording liquid is larger, the dot area becomes wider, and the density becomes darker than when the amount of the recording liquid is small and the size of the recording dot is small. Color tone printing. This means that when viewed under a microscope, the color tone is the same, but the size of each printed dot itself is extremely small, so when viewed with the naked eye in a normal state,
This is because if the print dot area is large, the color tone looks dark.
Print dots are extremely small dots, such as 300 dpi and 700 dpi.

With the nozzle 12 for discharging the recording liquid for yellow,
At the same time as the application of the electric pulse signal for discharging the recording liquid to the heating element 112h1 closest to the nozzle port 120, the heating element 13h2 formed at the position closest to the nozzle port 130 by the nozzle 13 for magenta recording liquid discharge. When an electric pulse signal for discharging the recording liquid is applied to the heating element 15h1 which is closest to the nozzle port 150 by the nozzle nozzle 15 for discharging the diluting liquid, an electric pulse signal for discharging the diluting liquid is applied. The yellow recording liquid 12q from the nozzle port 12h1 of the nozzle 12 to the heating element 12h1 closest to the nozzle port 120 is discharged toward the recording position 200 of the recording medium 20, and at the same time, the nozzle for discharging the magenta recording liquid. 1
The magenta recording liquid 13q from the nozzle port 130 of No. 3 to the heating element 13h1 closest to the nozzle port 130 is
The diluting liquid 15q is discharged from the nozzle port 150 of the diluting liquid discharging nozzle 15 to the heating element 15h1 closest to the nozzle port 150, and is discharged toward the recording position 200 of the recording medium 200.
The ink is ejected toward the recording position 200 of 0. The recording liquids 12q and 13q and the diluting liquid 15q fly to substantially the same location 200 on the recording medium 20. The yellow recording liquid 12q flying on the recording medium 20, the magenta recording liquid 13q flying at the same time, and the diluting liquid 15q are mixed with each other, and the diluting liquid 15q is moved to the recording position 200 on the recording medium 20.
As a result, a red recording dot having a reduced density is formed.

The diluting liquid ejection nozzle 15 is used to
When a discharge electric pulse signal is applied to a heating element farther from the nozzle port 150, a larger amount of diluent 15 is applied than when an ejection electric pulse signal is applied to a heating element closer to the nozzle port 150.
q is ejected, and a thinner red recording dot is formed on the recording medium 20.

Similarly, blue recording dots can be formed on the recording medium 20 by simultaneously flying the cyan recording liquid 11q and the magenta recording liquid 13q and mixing them on the recording medium. By simultaneously flying the yellow recording liquid 12q and the cyan recording liquid 11q and mixing them on the recording medium 20, green recording dots can be formed on the recording medium 20. In addition, diluent 1
By simultaneously flying and mixing 5q, recording dots having a lighter color tone can be formed.

As described above, the cyan recording liquid 11q, the yellow recording liquid 12q, the magenta recording liquid 1q, and the diluent 1
By controlling the ejection amount of 5q and adjusting the mixing ratio on the recording medium, recording dots of various colors can be formed on the recording medium.

By mixing the cyan recording liquid 11q, the yellow recording liquid 12q, and the magenta recording liquid 13q, a black recording liquid can be produced, and black recording dots are formed on the recording medium 20. can do. Further, the thickness can be reduced by mixing the diluent 15q.

When it is desired to form black recording dots, a dedicated nozzle for discharging a recording liquid 14q which has been adjusted to black in advance without mixing the cyan recording liquid 11q, the yellow recording liquid 12q, and the magenta recording liquid 13q. 14 may be provided so that the black ink 14q is ejected. Black is a cyan recording liquid 11q on the recording medium 20;
This is because, in some cases, instead of mixing the yellow recording liquid 12q and the magenta recording liquid 13q, the use of the ink 14q which has been adjusted to be black beforehand can form more vivid black recording dots.

The recording liquids 11q, 12q, and 13q of cyan, yellow, and magenta are super-permeable inks that allow the recording liquid to easily penetrate the recording medium 20, and only black penetrates the recording liquid 20 into the recording medium 20. However, a relatively slow ink having a relatively low permeability may be used. This is because, in some cases, it is possible to form recording dots with a more vivid color tone.

Magenta, yellow and black recording liquids,
Each of 11q, 12q, 13q, and 14q may be a super-permeable recording liquid (ink). Of course, cyan,
Any of yellow, magenta, and black recording liquids may be a recording liquid having a low permeability.

In the above-described embodiment, a heating element is used for forming a droplet discharge pressure for forming a pressure for discharging a droplet such as a recording liquid or a diluting liquid. Bubbles are generated in the recording liquid or the diluting liquid by heating the heating element, and the droplets are ejected from the nozzle orifice onto the recording medium by the pressure, but the bubbles are generated by irradiating a laser beam. You may do so. Alternatively, a piezo element may be used, the element may be deformed by applying a voltage to the piezo element, and the droplet may be ejected by the pressure due to the deformation.

In addition to using a liquid ink or the like as the recording liquid, a recording liquid that solidifies at room temperature may be used.
When such an ink is used, the ink is softened or liquefied at a temperature of 30 ° C. to 35 ° C. or more and 70 ° C. to 80 ° C. or less, and is jetted on a recording medium. In this way, the ink mixes on the recording medium and solidifies in a predetermined color.

Next, FIG. 6 shows an outline of an embodiment of the recording apparatus of the present invention. The recording head 1 is fixed to a carriage 40, moves along a guide rail 43 by a timing belt 41 driven by a carriage driving motor, and moves the recording medium 20 from a nozzle opening while moving in the main scanning direction. The recording dot is formed on the recording medium 20 by flying upward. The recording medium 20 is moved in the sub-scanning direction by a feed roll 42 driven by a recording medium driving motor. After the droplet is made to fly on the recording medium 20 to form a recording dot, the recording head moves in the main scanning direction, and the droplet flies onto the recording medium 20 to form the next recording dot. After the printing is performed by moving the recording head 1 in the main scanning direction, the feed roll 4
2, the recording medium 20 is moved in the sub-scanning direction, the recording head 1 is moved again in the main scanning direction, and printing is performed by causing droplets to fly. Thus, printing is performed on the recording medium 20. The recording head 1 is mounted on the carriage 40. 11t, 12t, 13t, 14t, 15
The tank shown by t is mounted. Nozzles and the like are formed on the left side of the recording head 1 in the figure, and a plate on which ejection ports are formed toward the recording medium 20 is provided on the lower side. Each tank communicates with each nozzle.

[0050]

As described above, according to the method of the present invention, it is not necessary to separately form dots on the recording medium for each color of cyan, yellow, magenta (and black). Since dots of various colors and shades can be formed for each dot, high-resolution printing becomes possible. Therefore, the printing speed can be increased.

For example, if the droplets flying from the plurality of droplet discharge ports are droplets of different types such as transparent and colored, of different colors, or of different densities, the droplets fly almost simultaneously on the recording medium. The droplets are mixed on the recording medium to form recording dots having a mixed color tone or the like, so that an image or the like can be formed without forming a plurality of dots.

When the volume of droplets discharged from the droplet discharge port is controlled so as to be variable, it is possible to perform recording such as changing the density for each dot while maintaining the same size of recording dots. Becomes

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a recording apparatus according to the present invention.

FIG. 2 is an explanatory view of the principle when recording is performed by the recording apparatus of the present invention.

FIG. 3 is a diagram illustrating the principle when recording is performed by the recording apparatus of the present invention.

FIG. 4 is an explanatory view of the principle when recording is performed by the recording apparatus of the present invention.

FIG. 5 is an explanatory view of the principle when recording is performed by the recording apparatus of the present invention.

FIG. 6 is a schematic diagram of a recording apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Recording head 11, 12, 13, 14, 15 Nozzle 20 Recording medium 30 Driving control circuit 110, 120, 130, 140, 150 Nozzle port

Claims (12)

[Claims] 1. A recording method in which a droplet is ejected from a droplet discharge port onto a recording medium to perform printing, wherein a plurality of the droplet discharge ports are formed, and the droplet discharge ports are formed at substantially the same location on the recording medium. A recording method, wherein the droplets fly almost simultaneously. 2. The recording method according to claim 1, wherein different types of droplets are ejected from the plurality of droplet ejection ports to substantially the same spot on the recording medium at substantially the same time. 3. The recording method according to claim 1, wherein said different types of droplets are droplets of different colors. 4. The recording method according to claim 1, wherein said different types of droplets are transparent droplets and colored droplets. 5. The recording method according to claim 1, wherein the different types of droplets are transparent droplets and black droplets. 6. The recording method according to claim 1, wherein the different types of droplets are a transparent droplet and a black droplet. 7. The recording method according to claim 1, wherein the volume of the droplet discharged from the droplet discharge port is variable. 8. A recording method in which a droplet is ejected from a droplet ejection port onto a recording medium to perform printing, wherein a plurality of the droplet ejection ports are formed, and the droplet ejection ports are formed at substantially the same location on the recording medium. A recording method, wherein the droplets are separately flown, and the droplets are mixed and printed on the recording medium. 9. A recording apparatus for performing printing by causing a droplet to fly onto a recording medium from a droplet discharge port, wherein the plurality of droplet discharge ports are formed at substantially the same location on the recording medium. And a droplet discharging means for causing the droplets to fly at substantially the same time. 10. A recording apparatus according to claim 8, further comprising a droplet discharge pressure forming means communicating with said droplet discharge port and forming a pressure for discharging said droplet from said discharge port. 11. The recording apparatus according to claim 9, further comprising a droplet supply unit that communicates with each of the droplet discharge ports and supplies different types of droplets. 12. The recording apparatus according to claim 9, wherein the extended portions of the ink flow paths communicating with the plurality of liquid ejection ports intersect on the recording medium.