JP3468570B2 - Recording device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus, and more particularly to a recording apparatus for reducing background stain and improving image quality when high viscosity ink is used.

[0002]

2. Description of the Related Art FIGS. 11 (a) and 11 (b) are block diagrams of a recording apparatus using high-viscosity ink described in Japanese Patent Application No. 5-203298 previously proposed. FIG. 11B is a diagram showing a case where image formation and development are performed for the purpose, and FIG. 11B is a diagram showing a case where latent image formation and development are performed independently.
In the figure, 21 is a recording medium, 22 is a cleaner, 23 is a heater,
Reference numeral 24 is a thermal head, 25 is a developing roller, 26 is an ink supply roller, 27 is paper, and 28 is a liquid supply roller.

In both cases shown in FIGS. 11 (a) and 11 (b), highly viscous ink of 1 poise or more is used as the ink. As a developing method, for example, the ink supply member 2
A sponge roller impregnated with ink is used as 6, and a thin ink layer is formed on the developing roller 25 by rotating in contact with the developing roller 25 composed of an elastic body. The ink layer comes into contact with the recording body 21, and the ink adheres only to the latent image portion to develop the ink. By using the high-viscosity ink, the ink does not adhere to the non-latent image portion at all, and an excellent image without background stain can be obtained.

That is, the developing roller 25 has a roller shape, and the ink supply member (porous body) 26 to the developing roller (elastic member) 25 also has a roller shape. It is desirable that the surface of the developing roller 25 has strong wettability with respect to the ink. The hardness of the developing roller 25 is 80 to 80 in terms of rubber hardness.
A range of 30 is desirable. The ink supply roller 26 is preferably a member having excellent wettability with ink, and the elastic modulus is preferably 50 degrees (Asker C) or less in sponge hardness. Specifically, a urethane foam resin foam material or the like is preferable.

FIG. 12 is a partially enlarged view of FIGS. 11 (a) and 11 (b). In FIG. 12, 29 is an ink protrusion, 30 is an ink threading portion, 31 is an ink layer, and FIG. (A),
The parts having the same operations as in (b) are designated by the same reference numerals. When the ink is transferred from the ink supply roller 26 to the developing roller 25, since the ink has a high viscosity, the ink transfers like a string.

[0006]

As described above, in the conventional recording apparatus using high-viscosity ink, as shown in FIG. 12, when the ink is transferred from the ink supply roller to the developing roller, due to the high viscosity, The ink is transferred like a string. For this reason, the ink on the developing roller does not form a flat ink layer but has a surface having irregularities. For this reason,
During the development in which the developing roller and the recording body come into contact with each other, the ink protrusions on the ink layer receive an excessive pressure, and the ink layer receives a non-uniform pressure. As a result, background stains are generated on the non-latent image portion due to ink protrusions. As described above, due to the ink stringing phenomenon that occurs between the ink supply member and the developing member, the background stain is likely to occur on the recording body during development.

The present invention has been made in view of the above circumstances, and an object of the present invention is to propose a recording apparatus for reducing the background stain and improving the image quality when a high-viscosity ink is used. .

[0008]

The present invention SUMMARY OF], in order to achieve the object, (1) recording material receding contact angle of the surface receives a pressurized heat at contact touch state liquid is constituted of a member decreases When the row Isen heating to the selected択的the recording material in contact with the liquid
A latent image forming means for forming an image; a developing means having a developing member for bringing a liquid containing a coloring material into contact with the latent image ;
Ink is supplied in layers from the supplying member to the developing member.
An ink supply unit, and the developing member supplies the ink.
A recording apparatus in contact with the sheet member, the ink is a liquid containing the coloring material is a high viscosity, the developing member, wherein
Touch the recording medium from the position after contact with the ink supply member
It has a smoothing means for smoothing the ink layer on the developing member to a position before, furthermore, (2) said smoothing means is a pressure member having a surface property of the ink does not adhere it, furthermore, (3) said smoothing means, said
That the ink from the supply member to lower the viscosity by heating the ink layer on the developing member after the ink supply to the developing member, a smoothing means for smoothing the flow of the ink itself, or, (4) Liquid When receiving the pressurized heat at contact touch state and a recording material receding contact angle formed by a member to decrease the surface, the recording medium
And a developing means having a <br/> latent image forming means for forming a row have a latent heat to the selected択的in contact with the liquid, a developing member for contacting a liquid containing a coloring material on the latent image, Ink supply member
Ink supply hand that supplies ink in layers to the developing member
A step, the developing member contacting the ink supply member
A recording apparatus for, at the ink high viscosity of the liquid containing the coloring material, it has a vibration means for vibrating the previous SL ink supply member, or (5) against touch in a state with the liquid <br / > a pressurized heat subjected the surface recording material receding contact angle formed by a member for reduction of the latent image forming means for the recording member to form a latent image have rows heated to the selected択的in contact with the liquid , layer a developing unit, the ink to the developing member from the ink supply member having a developing member for contacting a liquid containing the <br/> colorant on the latent image
And an ink supply unit for supplying the ink in a uniform shape,
A recording apparatus in contact with the ink supply member, the ink is a liquid containing the <br/> colorant with high viscosity, the development
The means is described from the position after contact with the ink supply member.
Ink on the developing member up to the position before contacting the recording body
Having a gas ejection means to the layer, or (6) Liquid
Latent to form the recording medium as the receding contact angle on the surface when subjected to pressurized heat is constituted of a member decreases in a contact touch state, a latent image have rows heated to the selected択的the recording material in contact with the liquid and developing portion for contacting the image forming means, a liquid containing a coloring material on the latent image
From the ink supply member to the developing unit
An ink supply unit that supplies ink to the material in layers,
It said developing member is a recording apparatus in contact with the ink supply member, the coloring material in the ink is high viscosity of the liquid containing regions by previous type recording member to the ink in a part of the recording layer does not adhere to And the developing unit when the area is not printed
It has to bring to a position in contact with the wood, further, in (7) above (6), before starting printing, and the developing member in the region where the ink does not adhere only the ink supply member after spinning, having a printing means for printing, or a recording medium made of a member to be lowered receding contact angle of the surface receives a pressurized heat in a state come in contact with (8) a liquid body, the recording rows heated to the selected択的body in contact with the liquid Isen
A developing unit having a latent image forming means for forming an image, a developing member for contacting a liquid containing a coloring material on the latent image, in
Ink is supplied in layers from the supplying member to the developing member.
An ink supply unit, and the developing member supplies the ink.
A recording apparatus in contact with the sheet member, the ink is a liquid containing the coloring material is a high viscosity, the ink non-attached region provided in a part of the front Symbol developing member, always the ink in the home position after printing the non-attached region is in contact with the surface of the recording member, or pressurized state come in contact with (9) liquid
A recording material receding contact angle of the surface receives the heat is constituted of a member decreases, a latent image forming means for forming a row have a latent heat to the selected択的in contact with the recording material and the liquid, the Developing means having a developing member for bringing a liquid containing a coloring material into contact with the latent image; and a layered ink from the ink supply member to the developing member.
And an ink supply unit for supplying the ink to the developing member.
A recording apparatus in contact with the serial ink supply member, an ink high viscosity of the liquid containing the coloring material, the contact position of said developing member and the ink supply member, with respect to the moving direction of said developing member it is obtained by, wherein a position farthest from the contact point of the recording member and the developing member.

[0009]

[Action] recording apparatus of the present invention, pressurized heat in contact with the liquid
The recording material is composed of a member whose surface receding contact angle decreases when exposed to light, latent image forming means for selectively heating in response to an image signal in contact with liquid, and a coloring material contained in the latent image portion. And a developing means for bringing the liquid into contact with each other, and the latent image forming means and the developing means are independent or integrated, and (1) the ink which is a liquid containing a coloring material has a poise of 1 poise or more. The developing unit has an ink supply unit that supplies ink in layers from the ink supply member to the developing member with high viscosity.
The material contacts the recording medium from the position after contact with the ink supply member.
Since the smoothing means for smoothing the ink layer up to the position before touching is provided, the background stain at the time of recording is significantly reduced as compared with the conventional recording apparatus. (2) Since the smoothing means is a pressure member having a surface having a property that ink does not adhere, the background stain at the time of recording can be greatly reduced by the simplest means.
(3) Since the smoothing means heats the ink layer of the developing portion after the ink is supplied to reduce the viscosity and smoothes it by the fluidity of the ink itself, it is a non-contact means, and therefore reliability in repeated recording is high. high. (4) A vibrating means for vibrating the ink supply member, which has an ink supply means for supplying ink in a layer form from the ink supply member to the developing member, in which the ink, which is a liquid containing a coloring material, has a high viscosity of 10 poise or more. Since it is provided, it is possible to reduce the background stain while maintaining the current configuration,
The solution is simple to configure. (5) The ink, which is a liquid containing a coloring material, has a high viscosity of 10 poise or more and has an ink supply unit that supplies the ink in layers from the ink supply member to the developing member, and the latent image developing unit and the ink supplying member. Since the gas jetting means is provided between and, since it is a non-contact means and is excellent in high-speed applicability, it is possible to reduce repetitive reliability and background stain in high-speed recording. (6) The ink, which is a liquid containing a coloring material, has a high viscosity of 10 poise or more, and has an ink supply unit that supplies the ink in layers from the ink supply member to the developing member, and a part of the recording layer of the recording medium. Since a region is formed by a member to which ink does not adhere, and the region comes to a position in contact with the developing device during non-printing ,
The background stain that occurs at the beginning of recording after resting is resolved. (7) Since there is a printing means for performing printing after rotating only the developing member and the ink supply member in the ink non-adhesion area before starting printing, reliability during repeated recording is improved. (8) The ink, which is a liquid containing a coloring material, has a high viscosity and has an ink supply unit that supplies the ink in a layered form to the ink supply member, and an ink non-adhesion region is provided in a part of the developing member. In the home position after printing, the ink non-adhered area is always in contact with the surface of the recording medium, so that the background stain that occurs at the beginning of recording after standing still can be solved more than before. (9) The ink, which is a liquid containing a coloring material, has a high viscosity and has an ink supply unit that supplies the ink in layers from the ink supply member to the developing member, and the contact position between the ink supply member and the developing member is the developing member. Since the position is farthest from the contact point between the recording body and the developing member in the moving direction, the background stain at the time of recording is greatly reduced by the simplest means even at low speed recording.

[0010]

Embodiments will be described below with reference to the drawings. 1A and 1B are configuration diagrams for explaining an embodiment (claim 1) of a recording apparatus according to the present invention, and FIG. 1A uses an elastic roller as an ink smoothing means. It is a figure which shows a case, and figure (b) is a figure which shows the case where a plate-shaped member is used. In the figure, 1 is a recording medium, 2 is a developing roller, and 3
Is an ink layer, 4a and 4b are smoothing means, 5 is ink, 6
Is an ink supply roller. In FIGS. 7A and 7B, a sponge roller impregnated with ink is used as the ink supply member, and a roller composed of an elastic member is used as the developing means.

[0011] recording medium 1, when in contact with the liquid (ink) subjected to pressurized heat, and a member of the receding contact angle of the surface is reduced. The developing roller 2 is brought into contact with the liquid containing the coloring material in the latent image portion. The liquid containing the coloring material has a high viscosity of 10 poise or more, and the ink 5 is supplied in layers from the ink supply roller 6 to the developing roller 2, and the developing unit and the ink supplying roller 6
Smoothing means 4a, 4b for smoothing the ink layer 3 between
To provide. That is, the developing roller 2 is provided with smoothing means for flattening the protrusion of the ink layer 3 on the developing roller 2 caused by the stringing of the ink. FIG. 1A shows a pressing means for flattening the protrusions on the ink layer 3 of the developing roller 2.
The elastic roller 4a is used, and the plate-shaped member 4b exhibiting elasticity is used in FIG.

Example 1 ( Example of claim 1) Recording medium: base--seamless polyimide film (1
5 μm) Recording layer-Fluorine-containing acrylate resin (1 μm) Ink: Black direct dye 20 wt% + ethylene glycol 45
wt% + polyvinylpyrrolidone 35 wt% Recording speed: 10 mm / s Developing member: Roller with chloroprene rubber (hardness 60) Wound: Polyurethane foam material (pore size 60
μm, hardness: 20) wound with Asuka C, ink was impregnated on the roller, and ink smoothing member: chloroprene rubber roller flattening member was pressed against the phenomenon roller with a spring of 1 kgf on each side. As a result of the implementation, the background stain was significantly reduced as compared with the case without the flattening member.

FIG. 2 is a view showing another embodiment (claim 2) of the recording apparatus according to the present invention, in which 7 is a pressing member (pressing belt), and FIG. The same code | symbol is attached | subjected to the part which has the same action as (b). A belt-shaped member (pressure belt) may be used as the pressure member 7. The pressing force that pushes the ink layer 3 and the elastic force of the elastic member are determined by the size of the developing roller 2, the viscosity of the ink, and the developing speed.
There is no general rule. However, the higher the ink viscosity and the faster the developing speed, the stronger the pressing force needs to be. Further, when the ink viscosity is high, it takes time to flatten the ink. Therefore, the higher the viscosity is, the longer the response time is. Therefore, it is necessary to lengthen the contact time of the pressure member, and the higher the ink viscosity is, the lower the Young's modulus of the elastic member is.

Further, if ink adheres to the surface of the pressing member 7, stringing of ink will occur at this portion.
Therefore, it is desirable that the surface of the pressure member 7 does not exhibit adhesiveness to ink. When the ink is water-based, a silicone resin is desirable as such a material. Unreacted silicone oil easily deposits on the surface of the silicone resin, and exhibits excellent repellency against water-based ink.
The entire pressing member 7 may be made of silicone resin, or the pressing member 7 may have silicone resin only in the vicinity of the surface thereof. In the case of oil-based ink, fluorocarbon resin is desirable.

Example 2 ( Example of Claim 2) Recording Body: Base--Seamless Polyimide Film (1
5 μm) Recording layer-Fluorine-containing acrylate resin (1 μm) Ink: Black direct dye 20 wt% + ethylene glycol 45
wt% + polyvinylpyrrolidone 35 wt% Recording speed: 10 mm / s Developing member: Roller with chloroprene rubber (hardness 60) Wound: Polyurethane foam material (pore size 60
μm, hardness: 20) wound with Asuka C, ink was impregnated on the roller, and an ink smoothing member: a silicone rubber roller flattening member was pressed by a spring of 1 kgf on one side of the developing roller.
As a result of the execution, the background stain was further reduced as compared with Example 1.

FIG. 3 is a view showing still another embodiment (claim 3) of the recording apparatus according to the present invention. In the drawing, 8 is a heating means (infrared heater), and other than that, it has the same function as FIG. The parts are given the same reference numerals. As another method of flattening the protrusions of the ink layer, the ink layer is heated to reduce the viscosity of the ink and the ink itself is fluidized to be flattened. As the heating means 8 for the ink layer, a non-contact heating means such as an infrared heater or a contact heating means having a member whose surface does not exhibit ink adhesion is suitable. Since the infrared heater is not in contact, there is no risk of the flattening member getting dirty. The heating temperature and heating time are determined by the ink viscosity and the developing speed. High ink viscosity,
The higher the developing speed, the higher the heating temperature needs to be set.

Example 3 ( Example of claim 3) Recording material: base-seamless polyimide film (1
5 μm), A4 length recording layer-fluorine-containing acrylate resin (1 μm) Ink: black direct dye 20 wt% + ethylene glycol 45
wt% + polyvinylpyrrolidone 35 wt% Recording speed: 10 mm / s Developing member: Roller with chloroprene rubber (hardness 60) Wound: Polyurethane foam material (pore size 60
μm, hardness: roller wound with Asuka C 20), impregnated with this ink ink smoothing member: plate-shaped ceramic heater (width 5 m
m, length 220 mm, 20 w) The smoothing member is placed 1 mm away from the phenomenon roller and set to 150
Heated to ° C. As a result of the implementation, the background stain was significantly reduced as compared with the case without the flattening member.

FIG. 4 is a diagram showing still another embodiment (claim 4) of the recording apparatus according to the present invention, and the reference numerals in the figure are the same as those in FIG. There is also a method to prevent the stringing of ink from the beginning. One method is to vibrate the ink supply roller 6 at a position in contact with the developing roller 2. While rotating the ink supply roller 6 together with the developing roller 2, the ink supply roller 6 is vibrated finely in the horizontal direction as shown in the figure. The ink thread generated near the contact between the ink supply roller 6 and the developing roller 2 is forcibly cut by the vibration, and the thread pulling phenomenon is less likely to occur. The vibration amplitude and frequency are determined by the ink viscosity. As a vibrating method, vibrating by an electromagnetic coil or vibrating by a piezoelectric vibrator is suitable.

Example 4 ( Example of claim 4) Recording material: base--Seamless polyimide film (1
5 μm) Recording layer-Fluorine-containing acrylate resin (1 μm) Ink: Black direct dye 20 wt% + ethylene glycol 45
wt% + polyvinylpyrrolidone 35 wt% Recording speed: 10 mm / s Developing member: Roller with chloroprene rubber (hardness 60) Wound: Polyurethane foam material (pore size 60
μm, hardness: roller wound with Asuka C 20), ink impregnated on this roller, electromagnetic solenoid was provided on both sides of the bearing of the ink supply member, and horizontally vibrated at 200 Hz. As a result of the implementation, the background stain was reduced to some extent.

FIG. 5 is a diagram showing still another embodiment (claim 5) of the recording apparatus according to the present invention. In the figure, 9 is a gas ejector (air nozzle), and other functions similar to those of FIG. The same reference numerals are given to the parts to be performed. Further, as another method for preventing the stringing of ink from the beginning, a gas ejecting means 9 for ejecting gas is provided at the contact position between the developing roller 2 and the ink supply roller 6. Any gas may be used as long as it does not chemically react with the ink, such as the atmosphere or nitrogen gas. As the gas ejection means 9, the gas is pressurized with an air pump or the like,
A jet is jetted to the location using an air nozzle. The thread-shaped ink is broken by the pressure of the jet, and the ink stringing phenomenon is suppressed. Further, the jet stream also exerts a function of flattening the ink layer because it also applies pressure to the surface of the ink layer. This method uses jet flow,
Responsiveness is good and the effect is great at high speed recording. It is desirable to provide a plurality of air nozzles in parallel to the axial direction of the phenomenon roller 2. A slit may be used instead of the nozzle.

Example 5 ( Example of claim 5) Recording medium: base-seamless polyimide film (1
5 μm) Recording layer-Fluorine-containing acrylate resin (1 μm) Ink: Black direct dye 20 wt% + ethylene glycol 45
wt% + polyvinylpyrrolidone 35 wt% Recording speed: 10 mm / s Developing member: Roller with chloroprene rubber (hardness 60) Wound: Polyurethane foam material (pore size 60
μm, hardness: Roller wound with Asuka C 20), impregnated with ink on this roller, air slit of width 0.3 mm, length 210 mm was used, and 3 mm with respect to the contact position between the developing roller and the ink supply roller. A slit is provided separately, and the pressure is 2 kgf / cm2.
The recording was performed while injecting nitrogen gas at. As a result of the implementation, the background stain was significantly reduced.

6 (a) and 6 (b) are views for explaining another problem to be solved by the recording apparatus according to the present invention, and the reference numerals in the drawings refer to FIGS. 1 (a), 1 (b) and 2 Is the same as. Now, the above description is based on the development roller 2 and the ink supply roller 6.
It was for solving the background stain due to the ink stringing phenomenon at the contact position. As a result of the experiments conducted by the present inventors, it was found that the background stain caused by the high-viscosity ink is also caused by the following causes. That is, the ink layer at the position where the recording body 1 and the developing roller 2 are in contact with each other during non-printing (at rest), as shown in FIG. For this reason, the ink layer becomes thick, and the background stain is likely to occur.
As shown in (b), the background is soiled. An example of preventing the background stain due to this phenomenon will be described below.

FIG. 7 is a diagram showing still another embodiment (claim 6) of the recording apparatus according to the present invention, in which 10 is a recording layer.
Reference numeral 11 denotes a portion where ink hardly adheres, and the other portions of FIG.
Portions having the same functions as those in (a) and (b) are designated by the same reference numerals. A part 11 is formed on a part of the recording body 1 by a part to which no ink adheres, and the part 11 is always in contact with the developing roller 2 when not printing (while stationary). The length of the printable area of the recording body 1 needs to be as large as the recording paper size. In the case of water-based ink,
Silicone-based resin is suitable as the non-ink-adhesive member. In the case of oil-based ink, fluorocarbon resin is suitable.

Example 6 ( Example of Claim 6) Recording Body: Base--Seamless Polyimide Film (1
5 μm), length A4 width recording layer --Fluorine-containing acrylate resin (1 μm) Area where ink does not adhere: Material --- Silicone resin dimension --- Width 10 mm, length A4 width Ink: Black direct dye 20 wt% + ethylene glycol 45
wt% + polyvinylpyrrolidone 35 wt% Recording speed: 10 mm / s Developing member: Roller with chloroprene rubber (hardness 60) Wound: Polyurethane foam material (pore size 60
μm, hardness: A roller wound with Asuka C 20), and impregnation of this roller with ink showed that there was no background stain that occurred after resting.

FIGS. 8A and 8B are views showing still another embodiment (claim 7) of the recording apparatus according to the present invention, and the reference numerals in the drawings are the same as those in FIG. By rotating the developing roller 2 while the recording body 1 is stopped at the portion 11, the swelling of the ink layer at the contact position between the recording body 1 and the developing roller 2 is smoothed, and the background stain is further reduced.

Example 7 ( Example of Claim 7) Recording Body: Base--Seamless Polyimide Film (1
5 μm) Recording layer-Fluorine-containing acrylate resin (1 μm) Ink-free area: Material-Silicone resin size-Width 10 mm, length A4 width Ink: Black direct dye 20 wt% + ethylene glycol 45
wt% + polyvinylpyrrolidone 35 wt% Recording speed: 10 mm / s Developing member: Roller with chloroprene rubber (hardness 60) Wound: Polyurethane foam material (pore size 60
μm, hardness: a roller wound with Asuka C 20), impregnated with this roller, ink was impregnated with the roller 5 times at a rotational speed of 2 rpm before printing, and printing was performed. Stability in repeated printing was improved.

FIG. 9 is a diagram showing still another embodiment (claim 8) of the recording apparatus according to the present invention. In the figure, 12 is a developing belt, 13 is a portion to which ink hardly adheres, and FIG.
Portions having the same functions as those in (a) and (b) are designated by the same reference numerals. A part 13 made of a material to which ink is hard to adhere is provided on a part of the developing belt 12 so that the part 13 is always in contact with the recording body 1 during non-printing. The length of the developing belt 12 needs to be as large as the recording paper size. At this time, it is not necessary to provide the portion 13 on the recording body 1 side. In the case of water-based ink, a silicone resin is suitable as the ink non-adhesive member. In the case of oil-based ink,
Fluorine-based resins are suitable.

Example 8 ( Example of claim 8) Recording medium: base--seamless polyimide film (1
5 μm) Recording layer-Fluorine-containing acrylate resin (1 μm) Ink: Black direct dye 20 wt% + ethylene glycol 45
wt% + polyvinylpyrrolidone 35 wt% Recording speed: 10 mm / s Developing member: Chloroprene rubber (hardness 60) was formed into a belt shape (thickness 3 mm), and as shown in FIG. 9, a part was coated with silicone resin (width 10 mm, length A4 Width) Ink supply member: Polyurethane foam material (pore size 60
μm, hardness: roller wound with Asuka C 20), impregnated with ink, and the roller was kept in contact with the recording material at all times when stationary to improve stability in repeated printing without background stains. .

FIG. 10 is a view showing another embodiment (claim 9) of the recording apparatus of the present invention. In the drawing, 14 is a thermal head, and other functions are the same as those in FIGS. 6 (a) and 6 (b). The same reference numerals are given to the parts that perform. It is also conceivable to smooth the ink layer by the fluidity of the ink itself at room temperature. In this case, if the contact position between the developing roller 2 and the ink supply roller 6 is away from the contact position between the phenomenon roller 2 and the recording body 1 as much as possible, the smoothing time can be increased.

Example 9 ( Example of claim 9) Recording material: base-seamless polyimide film (1
5 μm) Recording layer-Fluorine-containing acrylate resin (1 μm) Ink: Black direct dye 20 wt% + ethylene glycol 45
wt% + polyvinylpyrrolidone 35 wt% Developing member: chloroprene rubber (hardness 60) wound roller (diameter 40 mm) Ink supply member: polyurethane foam material (pore diameter 60
μm, hardness: 20 by Asuka C) (rolling diameter: 10 mm), impregnated with ink in this roller, the position farthest from the contact position between the recording medium and the developing roller in the rotation direction of the developing roller (FIG. 10). The distance between the ink supply roller and the recording medium was set to about 1 mm). As a result, the development speed is 10mm
Up to / s, the background stain was significantly reduced. However, at a speed higher than this, some soiling occurred (improved compared to the conventional one).

[0031]

As is apparent from the above invention, the present invention has the following effects. (1) Effect corresponding to claim 1: Addition in contact with liquid
A recording material receding contact angle of the surface receives the heat is constituted of a member decreases, the latent image forming means for selectively heating in accordance with an image signal in contact with liquid, the coloring material latent image portion A latent image forming means and a developing means which are independent or integrated with each other, and have a high viscosity of 10 poise or more. in the ink to the developing member from the ink supply member having an ink supply means for supplying a layer, developing member, Lee
Before contacting the recording medium from the position after contact with the ink supply member.
Since the smoothing means for smoothing the ink layer up to the position is provided, the background stain at the time of recording is significantly reduced as compared with the conventional recording apparatus. (2) Effect corresponding to claim 2: Since the smoothing means is a pressurizing member having a surface having a property that ink does not adhere, the background stain at the time of recording can be greatly reduced by the simplest means. (3) Effect corresponding to claim 3: Since the smoothing means is a smoothing means for heating the ink layer of the developing portion after ink supply to lower the viscosity and smoothing by the fluidity of the ink itself, Since it is a contact means, it has high reliability in repeated recording. (4) Effect corresponding to claim 4: The ink, which is a liquid containing a coloring material, has a high viscosity of 10 poise or more and has an ink supply means for supplying the ink from the ink supply member to the developing member in a layered manner. Since the vibrating means for vibrating the supply member is provided, the background stain can be reduced while maintaining the current configuration, and the configuration of the solution is simple. (5) Effects corresponding to claim 5: a high-viscosity ink is not less than 10 poise is a liquid containing a coloring material, the ink to the developing member from the ink supply member having an ink supply means for supplying a layer, developing Position of the member after contact with the ink supply member
Since it is a non-contact means and is excellent in high-speed applicability , the gas jetting means is provided from the position to the position before contact with the recording body , and therefore the reliability of repetition and the background stain in high-speed recording are reduced. (6) Effect corresponding to claim 6: The ink, which is a liquid containing a coloring material, has a high viscosity of 10 poise or more, and has an ink supply means for supplying the ink from the ink supply member to the developing member in a layered form, and recording A part of the recording layer of the body is provided with an area made of a member that does not adhere to ink, and the area is brought into contact with the developing means during non-printing. The resulting background stain is resolved. (7) Effect corresponding to claim 7: Since there is a printing means for performing printing after rotating only the developing member and the ink supply member in the ink non-adhesion region before starting printing, reliability during repeated recording is provided. Will be more likely. (8) Effect corresponding to claim 8: The ink, which is a liquid containing a coloring material, has a high viscosity, has an ink supply means for supplying the ink in a layered manner to the ink supply member, and the non-ink portion is provided in a part of the developing member. Since the adhesion area is provided and the ink non-adhesion area is always in contact with the surface of the recording medium at the home position after printing, the background stain that occurs at the beginning of recording after standing still is solved more than before. (9) Effect corresponding to claim 9: The ink, which is a liquid containing a coloring material, has a high viscosity and has an ink supply means for supplying the ink from the ink supply member to the developing member in a layered manner, and the ink supply member and the developing device. Since the contact position of the member is the position farthest from the contact point of the recording member and the developing member with respect to the moving direction of the developing member, even with low speed recording, it is the simplest means.
The background stain during recording is greatly reduced.

[Brief description of drawings]

FIG. 1 is a configuration diagram for explaining an embodiment of a recording apparatus according to the present invention.

FIG. 2 is a diagram showing another embodiment of the recording apparatus according to the present invention.

FIG. 3 is a diagram showing still another embodiment of the recording apparatus according to the present invention.

FIG. 4 is a diagram showing still another embodiment of the recording apparatus according to the present invention.

FIG. 5 is a diagram showing still another embodiment of the recording apparatus according to the present invention.

FIG. 6 is a diagram for explaining another problem to be solved by the recording apparatus according to the present invention.

FIG. 7 is a diagram showing still another embodiment of the recording apparatus according to the present invention.

FIG. 8 is a diagram showing still another embodiment of the recording apparatus according to the present invention.

FIG. 9 is a diagram showing still another embodiment of the recording apparatus according to the present invention.

FIG. 10 is a diagram showing still another embodiment of the recording apparatus according to the present invention.

FIG. 11 is a block diagram of a conventional recording apparatus.

FIG. 12 is a partially enlarged view of FIG. 11.

[Explanation of symbols]

1 ... Recording member, 2 ... Developing roller, 3 ... Ink layer, 4a, 4
b ... Ink smoothing means, 5 ... Ink, 6 ... Ink supply roller, 7 ... Pressurizing member (pressurizing belt), 8 ... Heating means (infrared heater), 9 ... Gas ejection means (air nozzle), 1
0 ... Recording layer, 11 ... Area where ink is hard to adhere, 12 ... Developing belt, 13 ... Area where ink is hard to adhere, 14 ... Thermal head.

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B41L 17/00-17/24 B41M 5/00 B41M 5/26 B41J 27/10

Claims (9)

(57) [Claims] 1. A recording material receding contact angle of the surface receives at contact touch state liquid pressurizing heat is constituted of a member decreases, 該記
Forming a row have a latent heat to the selected択的in contact with the Rokutai liquid
A latent image forming means for, developing means having a developing member for contacting a liquid containing a coloring material on the latent image, the ink supply portion
Ink supply that supplies ink from the material to the developing member in layers
Supply means, the developing member and the ink supply member
A recording apparatus for contact, the ink is a liquid containing the coloring material is a high viscosity, the developing member, the ink supply
From the position after contact with the feeding member to the position before contact with the recording body
A recording apparatus comprising : a smoothing unit that smoothes the ink layer on the developing member before being placed . Wherein said smoothing means is the recording apparatus according to claim 1, characterized in that the pressure member having a surface property of the ink will not adhere. 3. The ink supply member , wherein the smoothing means is
Lowering the in-<br/> viscosity by heating the click layer on the developing member after the ink supply to the developing member from, characterized in that a smoothing means for smoothing the flow of the ink itself according Item 1
The recording device described. A recording material receding contact angle of the receiving pressurized heat surface made of members to be lowered by 4. come in contact with the liquid state, 該記
Forming a row have a latent heat to the selected択的in contact with the Rokutai liquid
A latent image forming means for, developing means having a developing member for contacting a liquid containing a coloring material on the latent image, the ink supply portion
Ink supply that supplies ink from the material to the developing member in layers
Supply means, the developing member and the ink supply member
A recording apparatus for contacting, in an ink high viscosity of the liquid containing the coloring material, a recording apparatus characterized by comprising a vibration means for vibrating the previous SL ink supply member. A recording material receding contact angle of the surface receives a pressurized heat is constituted of a member decreases in 5. come in contact with the liquid state, 該記
Forming a row have a latent heat to the selected択的in contact with the Rokutai liquid
A latent image forming means for, developing means having a developing member for contacting a liquid containing a coloring material on the latent image, the ink supply portion
Ink supply that supplies ink from the material to the developing member in layers
Supply means, the developing member and the ink supply member
A recording apparatus for contacting, in an ink high viscosity of the liquid containing the colorant, the current image unit, said ink supply
From the position after contact with the feeding member to the position before contact with the recording body
Gas ejecting means to the ink layer on the developing member.
A recording device characterized by having . 6. A recording material receding contact angle of the surface receives at contact touch state liquid pressurizing heat is constituted of a member decreases, 該記
Forming a row have a latent heat to the selected択的in contact with the Rokutai liquid
A latent image forming means for, developing means having a developing member for contacting a liquid containing a coloring material on the latent image, the ink supply portion
Ink supply that supplies ink from the material to the developing member in layers
Supply means, the developing member and the ink supply member
A recording apparatus for contacting, in an ink high viscosity of the liquid containing the colorant, provided an area by members ink does not adhere to the part of the recording layer before type recording material, the region is non-mark
A recording apparatus, which is brought to a position where it comes into contact with the developing member during writing. 7. A print start before, after the ink is rotated only the ink supply member and the developing member in the region that does not adhere, according to claim 6, characterized in that it comprises a printing means for printing Recording device. A recording material receding contact angle of the surface receives a pressurized heat is constituted of a member decreases in 8. come in contact with the liquid state, 該記
Forming a row have a latent heat to the selected択的in contact with the Rokutai liquid
A latent image forming means for, developing means having a developing member for contacting a liquid containing a coloring material on the latent image, the ink supply portion
Ink supply that supplies ink from the material to the developing member in layers
Supply means, the developing member and the ink supply member
A recording apparatus for contacting, in an ink high viscosity of the liquid containing the coloring material, before Symbol an ink non-adhesion region in a part of the developing member, always said ink non-attachment region at the home position after printing A recording apparatus, wherein the recording medium is in contact with the surface of the recording medium. 9. A recording material receding contact angle of the surface receives at contact touch state liquid pressurizing heat is constituted of a member decreases, 該記
Forming a row have a latent heat to the selected択的in contact with the Rokutai liquid
A latent image forming means for, developing means having a developing member for contacting a liquid containing a coloring material on the latent image, the ink supply portion
Ink supply that supplies ink from the material to the developing member in layers
Supply means, the developing member and the ink supply member
A recording apparatus you contact with ink high viscosity of the liquid containing the coloring material, the contact position before Symbol ink supply member and the developing member prior to the moving direction of said developing member
Recording apparatus characterized by serial recording member from the contact point of the development member is a position farthest.