JPS59121074A - Color image formation - Google Patents

Abstract

PURPOSE:To convert a soft copy to a hard copy with high efficiency by forming a color image by utilizing a difference of photosensitivity of an exposure part and a non-exposure part by an image forming projection of an optical signal. CONSTITUTION:Filter particles P consist of a mixed compound of three kinds of particles, are colored in three primary colors, for instance, red, green and blue, and make a colored light transmit. A filter particle layer formed on a photosensitive body 1 generates an optical signal of three primary colors when a picture signal is impressed to a color CRT 6, it is brought to image forming projection by an operation of an OPF 7 being an unmagnification image forming means, and a write exposure is executed. In this case, in a part irradiated by a red light, as for the filter particles colored in red, the adhering force to the photosensitive body 1 is weakened. The filter particles whose adhering force to the photosensitive body 1 is weakened are removed from on the photosensitive body by a developing device 8. When the filter particles which remain behind on the photosensitive body 1 are transferred onto a recording sheet S by a transfer device 9, complementary colors of blue and green of the remaining particles are developed, a red color is reproduced, and a desired color image is obtained.

Description

[Detailed description of the invention] (Technical field) The present invention relates to a method for forming a single color image.

(Conventional technology) Recently, with the rapid spread of color disgame 1/i.

There is a growing demand for converting so-called soft copies with color displays into notebook copies so that they can be easily viewed and edited at any time. Color inkjet printers and color thermal transfer printers are known as printers suitable for converting the above-mentioned soft copies into non-copyable ones.
Since the signals of each of the three primary colors are recorded repeatedly, there are five questions about how long it takes to form one color image.

On the other hand, it is possible to form a color painting with one exposure and one dust formation! ! '! %One-shot color squadron formation methods include the Sugarman method (US Patent No. 2940847), the 17e1 pneumophoresis method (Japanese Patent Publication No. 1983-21781),
The three primary color receptor method (Japanese Patent Publication No. 50-39950), the filter particle method (Japanese Patent Publication No. 55-49307), etc. were proposed.
ing.

(Objective) It is an object of the present invention to provide a novel method for forming color squadrons that can convert soft copies into hard copies with high efficiency by utilizing the above-mentioned One-Seven-Year Color Squadron Forming Method.

(composition) The present invention will be explained below.

In the method for forming a single color image according to the present invention, the printed color image is converted into original signals of three primary colors by a color display means.

These three primary color optical signals are generated by a same-size uniting means.

Pity hj, the result is projected onto the body.

The composition is divided into three primary colors in a mosaic pattern.

Has photosensitive function.

The structure is exposed by the interference projection of the optical signal, and this is due to the exposure point. Take advantage of the difference in photosensitivity between exposed and unexposed areas.
As a result, a color image is formed.

As a color display means, we can think of something divine, but color CI (T, color fluorescent display tube array) is the best.

This is a suitable example.

Examples of the same-magnification uniting means include a cladding type fiber array of an end-face imaging element, an oFp, a gradient index fiber array of a z-band one-quadrant element, a strip lens, a telecentric lens array, a spherical 1/lens array, a flat plate lens array, You can think of things like a roof mirror, 1 non-zero, 1/2, etc., but it is necessary to obtain enough brightness on a specific line, to have no light meter unevenness on a specific line, to have no chromatic aberration for a color image, and to OF F and roof mirror lens arrays are preferred because of their ability to perform contact exposure.

Hereinafter, a detailed description will be given with reference to the drawings.

FIG. 1 schematically shows only the essential parts of an example of an apparatus for carrying out the present invention.

In the figure, reference numeral 2 indicates an eye and a photoconductive photoreceptor.

Charger, numeral 3 is a filter particle dispersion device, numeral 5 is a device for making the filter particle layer into one layer, numeral 6 is a color C1'r as a color display means, and numeral 7 is a 1-magnification unit. OFF as a means.

Reference numeral 8 is a visualization device, reference numeral 9 is a transfer device, and reference numeral 10 is a transfer device.
11 is a device for removing filter particles, and S is a recording sorting device.

3- The symbol P designates the filter particles.

A photoconductive photoreceptor 1 is formed in the shape of a drum and is movable in the direction of the arrow.

It has panchromatic light sensitivity.

This photoreceptor 1 rotates in the direction of the arrow during recording.

- First, the charger 2 is uniformly charged to a predetermined physical property 1, for example, negative polarity.

Next, filter particles P are scattered on the circumferential surface of the photoreceptor 1. At this time, the filter particles are charged to a polarity opposite to that of the photoreceptor 1, that is, to a positive polarity, by an appropriate means.

The scattered filter particles P uniformly adhere to the circumferential surface of the writing body 10 due to the electric force. Next, the filter particles P excessively attached to the photoreceptor 1 are removed by the mounting 5.
Y, for example, a state in which the filter particles are removed from the photoreceptor 1 by an electrical method, that is, a method using electric force, and a layer of filter particles is deposited on the photoreceptor 1? Realize. When this state is achieved, it is said that the filter particles P are formed into a single layer on the susceptor 1.

The filter particles are a mixture of three types of particles.

These three particles have three primary colors, for example,
The red, edge, and blue colors are chromatically colored, allowing the light of the 1st color to pass through. f i.e. 1 individual particle is red, blue, edged, f
They function as filters that allow several colors to pass through them, and for this reason they are called filter particles. This
The three types of particles were mixed in approximately equal amounts to form filter particles P79. Furthermore, each particle contains a colorless sublimation dye that develops a color that is complementary to a subdued color.

It is preferable that the filter particles have a spherical shape, and the particle diameter is suitably about several μm to 80 μm.

Particles like this? To make it, Meroi can be made from acrylic resin, methyl methacrylate, resin, etc. by dyeing it with microparticles of polymethyl methacrylate, microscopic glass beads, and applying a sublimable dye to the material. Dye or sublimation dye on transparent resin such as polyvinyl alcohol? Dispersion of molecules into fine particles, etc.

A mercenary method is possible.

These tiny particles, such as reeds, form a transparent low-resistance layer on their surface, similar to copper iodide.

Now, on sensation-*, on body 1, filter particle P is 1
Looking at the layered state, the surface of the photoreceptor 10 is as follows.

The coloring particles are uniformly coated in one layer by the three particles mentioned above, but in this particle layer, the distribution of the colored particles is uniform and completely random. .

In this state, a structure is formed and protected by the layer of filter particles and the photoreceptor 1. This structure has a photosensitive function due to the photoreceptor 1 as its component, and is divided into three primary colors in a mosaic pattern by three colored particles forming the filter particle layer.

When the filter particle layer formed on the photoreceptor 1 reaches the close opposing portion of the color eRT 6 and the photoreceptor 1, an image signal is applied to the color eRT 6. These two signals generate optical signals of three primary colors, and this optical signal is projected onto an adult by the action of the OFP, which is a one-size-fits-all formation means. In addition, color CI (T6 scan is
It is a line scan method, and the scanning direction is perpendicular to the drawing in FIG.

In this way, the structure is subjected to writing exposure using optical signals of the three primary colors. In the area irradiated with red light during this exposure, the red light passes through the red-colored filter particles, causing a photoconductive phenomenon in the photoreceptor in the area directly below it. As a result, the photoreceptor charging weight disappears in this part, and the red-colored filter particles are transferred to the photoreceptor 1.
The adhesion to the product will be weakened.

Similarly, for parts of the structure exposed to green light,
The adhesion force of the green filter particles to the photoconductor 1 is weakened, and when exposed to blue light, the adhesion force of the blue-colored filter particles to the photoconductor 1 is weakened.

Therefore, the current failure device 8 ((therefore, from above the photoreceptor 1).

As described above, the adhesion force to the photoconductor 1 is weakened.] 7- Selectively remove Ilter particles. To do these 7 things 1
For example, the roller of the developing device 8 is made conductive, a thin insulating layer is formed on its surface, and a potential having a polarity opposite to that of the filter particles (for example, a negative potential) is applied to the conductive part. n is good.

In this manner, after the filter particles are selectively removed by the phenomenon device 8, the portion of the photoreceptor l that is irradiated with the red light contains filter particles colored green.
Filter particles colored blue remain. In addition, in the part irradiated with blue light, there remain filter particles colored red and filter particles colored green, and in the part irradiated with green light, there remain filter particles colored red. With colored filter particles.

Filter particles colored blue remain.

In this way, the filter particles remaining on the photoreceptor 1 are removed.
The image is transferred onto the recording sheet S by the transfer device 9. The transfer device 9 is a conductive roller whose circumferential surface is covered with an insulating thin film, and applies a dog-like potential with a polarity opposite to that of the filter particles to transfer the same particles. ing.

8- The recording sheet S onto which the filter particles P7 have been transferred is then heated by the coloring device 10. In addition.

For example, clay paper may be used as the recording medium.

When the filter particles on the recording sheet S are heated, the sublimable dye they contain sublimates and develops color on the recording paper.

In light scanning with color (T6), two types of filter particles colored blue and green remain as described above in the area irradiated with red light, so these are
When it occurs on Record Note S.

Blue, the complementary colors of the edges, yellow and magenta develop and turn red. Similarly, cyan from red, green, and colored particles remain in areas irradiated with blue light.

The magenta color reproduces the blue color and remains in the area irradiated with the green light. From blue, red particles.

Green color is reproduced by the development of cyan and yellow colors.

Thereafter, the filter particles P are removed from the recording sheet S by the device 11, and a desired color image is obtained.

Incidentally, as the color forming device 1O, a constant layer device which is well known in the past in electrophotographic devices can be used.

FIG. 2 shows that in the example shown in FIG. 1, a color fluorescent display tube array 20 is used instead of the color 0R'16 as the color display means, and instead of 0FF7 as the same-size uniting means, a An example using a one-mirror lens array 30 is shown.

The color fluorescence display tube array 20 includes a transparent face plate 21, a casing 21, a driver 22,
It has a filament 23, an electronic lens 24, and one light emission R25.

Color firefly display tube array 20 shell 1 The longitudinal direction is the direction perpendicular to the drawing, and the filament 23. electronic 1/ns 24
are provided in the longitudinal direction.

The casing circle is under vacuum, and the filament 23
When the filament 23 is energized, thermoelectrons are emitted from the filament 23. The emitted thermoelectrons are passed through the electron lens 24,
The hair is collected toward the hair growth area 25.

As shown in FIG. 3, the light emitting section 25 has red and blue lights.

Microscopic phosphor elements 1t-B and 1t-G that emit light are arranged on the edges, and corresponding micro-electrodes are provided on the back side of these elements f''L, which are selectively activated by the driver 22. A potential is applied to fL.

For example, when f positive electric currents are applied to one of the phosphor elements R, thermoelectrons flow into the microelectrode due to the positive potential, and the corresponding phosphor element 1t develops a red color.

The roof mirror lens array 30 has a configuration as shown in FIG.

That is, in FIG. 4, the roof mirror lens array 30 has its longitudinal direction perpendicular to the drawing, and is arranged with this longitudinal direction parallel to the longitudinal direction of the color fluorescent display tube array 20.

A roof mirror lens array 30 (well, a roof mirror 32 and a lens array 33 inside the casing 31.

It houses a roof mirror array 34.

The roof mirror 32 is provided along the length of the roof mirror lens array 11-30. The 1/lens array 33 has lenses arranged in an A1/A arrangement in the longitudinal direction, and the roof mirror array 34 also has roof mirrors arranged in a hair array in the longitudinal direction.

The arrangement of each lens of the lens array 33 corresponds to the arrangement of each roof mirror of the roof mirror array 34.

The casing 31K has an entrance slit 31A, an injection slit 31B, and an entrance slit 3.
The light incident through 1 is reflected by one side of the roof mirror 32, and is transmitted through the lens array 33.

It is reflected by the roof mirror array 34, further transmitted through the lens aluminum 33, reflected by the other surface of the mold 1-32, and then injected from the injection sulin) 31B. do.

As mentioned above, color eg'r6 as a color display means
A hard copy can be obtained on the recording sheet S by applying an image signal corresponding to a soft copy to the color fluorescent display tube array 2° (FIG. 1).

12- In the case of this color double edge forming method, it is possible to print within 5 seconds per A4 size recording sheet, and printing efficiency is significantly improved. In the future, inventions
We believe that it will be possible to print an A4 size sheet in about 1 second.

Finally, a specific example carried out by one inventor will be described.

A drum-shaped photoreceptor whose leading layer is zinc oxide with panchromatic spectral sensitivity, and has panchromatic spectral sensitivity. Drum-shaped selenium-tellurium photoreceptor A drum-shaped OPC photoreceptor with panchromatic sensitivity was fabricated.

An apparatus as shown in FIG. 1 was fabricated for each of these three photoreceptors.

The following filter particles were used.

A 5% aqueous solution of polyvinyl alcohol was used as the mother liquor.

Add 200g of this mother liquor to a red coloring dye: Mitzi Brilliant Milling Red BL (Mitsui Kabutsu Chemical Co., Ltd.)
10g, sublimable colorless dye that turns cyan to S color: bis(4,4'-dialkylamino-diphenyl)ethylene; I.5gY was added and mixed thoroughly to prepare solution A.

Next, add green dye to 200 g of mother liquor; Suminol Milling Cyanine Green 6G (Otan Kagaku Kogyo C Co., Ltd.) g)
; 13g, sublimation dye that develops magenta: 2-(4
-N-N-diethylamino-2-methylstyryl J-3
,3-dimethyl-314-indole; 1.2g k
The mixture was added and thoroughly mixed to obtain Solution B.

Furthermore, in 200 g of the mother liquor, 8 g of blue dye: Aisen, Pictol, Glue (manufactured by Hodogaya Chemical Co., Ltd.);
and 2 g Y of a sublimable colorless dye that develops yellow: Michler's ketone, and were thoroughly mixed to obtain liquid C.

KO4L A, B, L-: '6 liquid,' rt
The particles were then spray-dried, granulated, and classified into 5 parts to form light-transmissive filter particles having a particle size of 10 to 30 microns, and these were mixed equally.

for each photoreceptor. The charging polarity by charger 2 is
The polarity is negative for the zinc oxide photoconductor, and the polarity is positive for the selenium-tellurium photoconductor and OPC photoconductor. It was determined according to the open-time polarity of the charger 2. The wake-up pressure applied to the charger 2 when charging the charger 2 is as follows.

:! :6~7KV.

First, the photosensitive f1f- is equalized by the charger 2.
When the filter particles were sprayed, the filter particles were charged to the opposite polarity to the photoreceptor due to electrostatic induction and adhered to the photoreceptor.

After layering the filter particle layer, color C1 (,'
When we performed the following processes: l'K circular scanning, transfer, and removal of one color particle, we were able to obtain a good color image with good mixing of one color even with the photoreceptor in the eaves. Tried. Clay paper was used as the recording material.

Next, the color display means was changed from Color-017' to a color quantitative display tube array, and the same-size display means was turned off.
Then, a similar experiment was carried out using a roof mirror lens array, and similar results were obtained as in the previous experiment.

Note that the photoreceptor is not limited to a drum shape, but may be a belt shape.

(Effects) 1. According to the present invention, it is possible to provide a novel method for forming a single color image by which a hardcopy can be made into a hard copy with high efficiency.

[Brief explanation of drawings]

FIG. 1 is a side view schematically showing an example of an apparatus for carrying out the present invention, and FIG. 2 shows a color fluorescent display tube array as a color display means and a 1-1 magnification unit. Explanatory diagram showing the state of use with the roof mirror lens array as %3
The figure shows a color fluorescent tube array 2. Explanation 1 - Figure 4 is a diagram for explaining the mirror lens array. ■...Photoreceptor, 2...Charger. P... Filter particles, 6... Color 〇R
'l'. 7... OFP, 8... Current unit equipment, S...
Recording Sheet, 10...Toru Kabayama, Agent for Color Development Device, 527-16 Illustrated Procedural Amendment Form February 1981 771-1 Mr. Wainu Wakamatsu, Commissioner of the Patent Office (Mr. Patent Office Examiner) 2 Inventions Name of color image forming method 3 Relationship with the case of the person making the amendment Patent ζ1, applicant Location: 1-3-6 Nakamagome, Ota-ku, Tokyo
Name (674) Rico Co., Ltd. -4
Agent Address: 156 Address: 2-6-28-5 Sakuragaoka, Setagaya-ku, Tokyo
Subject of amendment Each column of “Claims”, “Detailed Description of the Invention”, “1-Brief Description of Drawings” of the specification and 6. Contents of amendment (11. Claims will be amended as shown in the attached sheet) (Replace Figure 2 of Drawing 21 with the attached one. 6) Delete the 3 characters "array" in line 18 of page 6 of the specification. (4) Delete the word "array" in line 7 of page 11 of the same specification. (51, page 11, line 10, after “display tube”, page 11, line 11, 1 before “driver”, e, r20 means plate 21, Transparent casing 21'.'' (6) Delete the 6 characters of "array" in the 14th line of the 11th page of the same. σ) The 1 of ``A'' at the end of the 15th line of the 12th page of the same. (8) Delete the two characters "ray" at the beginning of line 16 on page 12 of the same document. (Delete the six characters "array" in line 17 of page 16 of the same document. Delete the 6 characters of "array" in the 19th line of the 16th page. Delete the 6 characters of ``Array.'' 03 From the beginning of the 4th line of the 14th page of the same page, after ``ru.'', delete the last part of the 5th line of the same page. 3- Attachment Claim 1 By color display means An optical signal of three primary colors is generated, and the optical signal of the three In colors is imaged by an equal-magnification imaging means on a structure that is color-divided into six primary colors in a mosaic shape and has a photosensitive function. A color image forming method, which comprises performing exposure and forming a color image by utilizing the difference in photosensitivity between exposed areas and non-exposed areas. 2. In claim 1, a color display is provided. Color image forming method, characterized in that the means is a color CRT. 6. A color image forming method according to claim 1, characterized in that the means is a color display means or a color fluorescent display tube. 529

Claims (1)

[Claims] 1. Original signals of three primary colors are generated by a color display means, and the original signals are divided into the three primary colors in a mosaic pattern on a structure having a photosensitive function. The original signals of the three primary colors mentioned above can be converted to the same magnification using means. It forms an image and exposes it to light, making use of the difference in photosensitivity between exposed and non-exposed areas. Characterized by the formation of color squadrons. Color image forming method. 2. Claim 1 is characterized in that the color display means is a color CH,T. Color image forming method. 3. The color image forming method according to claim 1, wherein the color display means is a color fluorescent display tube array.