JPS63184734A - Color correcting device - Google Patents

Abstract

PURPOSE:To easily execute color correction by measuring the hue of a recording object, displaying a correcting value for compensating a difference between the measured hue and a reference hue and inputting a correcting value on the basis of the displayed correcting value to control the action of a color correcting means. CONSTITUTION:In a measuring circuit 308, a photoelectric converter 404 converts light into an analog signal and a digitizing circuit 405 digitizes the analog signal into a digital signal. The measured result is sent to a control part in an image recorder through a cable or the like. The measured result quantized to 8 bits, e.g., by an A/D converter 409 is compared with the reference hue based upon the coloring characteristics of a photosensitive material by a microprocessor 414, operation for compensating the difference between the measured result and the reference hue and a color correcting value is displayed on a display part 415. When a worker inputs a correction value from an input part 416 on the basis of the correction value displayed on a display part 415, the microprocessor 414 controls the operation of filters 417, 418 and an iris device 419 in accordance with the inputted correction signal. Thus, proper color correction can be easily executed.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention involves irradiating a color photosensitive material having spectral sensitivity at least in the visible light region with three types of light having different wavelengths to produce yellow, magenta and cyan. The present invention relates to a color correction device for a color image recording apparatus that records a color image on the color photosensitive material by controlling color development.

[Conventional technology]

In a color image forming apparatus, in order to correct the tone of an image, visually observe the color density of each of yellow, magenta, and cyan from the recorded material, and perform exposure using a filter, for example, to compensate for one color drop. The amount is being adjusted. For example, if the recorded image lacks yellow color development, a filter is placed on the optical axis so that the light flux that exposes the photosensitive material promotes yellow color development, and more yellow light is irradiated onto the photosensitive material. After performing the adjustment, image recording is performed again, and by visually observing the resulting recorded matter, the result of color correction is determined, and color correction is performed again as necessary.

[Problem that the invention seeks to solve]

However, in order to determine the amount of color correction by observing the recorded material, it is necessary to understand the color balance of the three pigments yellow, magenta, and cyan, or the four pigments yellow, magenta, cyan, and black. Therefore, there is a problem in that it requires specialized knowledge and experience, and color correction cannot be easily performed.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems, and to provide a color correction device that can easily perform color correction without requiring specialized knowledge or experience.

[Means and effects for solving the problems] The above object of the present invention is to irradiate a color photosensitive material having spectral sensitivity at least in the visible light region with three types of light having different wavelengths to produce yellow, magenta, and and a color correction device for a color image recording device that records a color image on the color photosensitive material by controlling cyan color development, comprising: a means for measuring the color tone of the obtained recorded material; and a means for measuring the color tone of the obtained recording material; and means for displaying a color correction amount based on the calculation result.

This is achieved by a color correction device characterized by comprising an input section of a color correction means for performing color correction corresponding to the amount of color correction.

In other words, the color tone of the recorded material is measured, the amount of correction to compensate for the difference from the reference color tone is displayed, and the operation of the color correction means is controlled by inputting the amount of correction based on the displayed amount of correction. You can perform color correction.

Note that in the present invention, a photosensitive material refers to a material for obtaining a visible image by applying pressure to a latent image generated by imagewise exposure.

In this case, it may include a step of preliminary heat development or wet development before applying pressure.

An example of such a material is a type of material in which a polymerizable compound is imagewise cured by imagewise exposure, and then a visible image is obtained by applying pressure, as disclosed in Japanese Patent Application Laid-Open No. 57-1991 filed by the present applicant. The material disclosed in Japanese Patent No. 179836 is mentioned. This material has a synthetic polymer resin wall capsule containing a vinyl compound, a photopolymerization initiator, and a colorant precursor supported on a support.

Further, after containing silver halide and imparting imagewise exposure, thermal development is performed to develop the silver halide, and the polymerizable compound is simultaneously cured in correspondence with this development.

As a type that obtains a visible image by applying pressure after that,
Examples include the materials disclosed in Japanese Patent Application No. 121284/1984 or Japanese Patent Application No. 53881/1981 filed by the present applicant. Said patent application 1984-121284
The material disclosed in the above issue is one in which a color image-forming substance is transferred to an image-receiving material having an image-receiving layer after thermal development to obtain an image on the image-receiving material. , a reducing agent, a polymerizable compound, and a color image-forming substance are coated thereon, and at least the polymerizable compound and the color image-forming substance are encapsulated in the same microcapsule.

Furthermore, the material disclosed in the above-mentioned Japanese Patent Application No. 61-53881 is for obtaining an image on a light-sensitive material without using an image-receiving material. One of the substances that cause a color reaction and a polymerizable compound are contained in microcapsules, and the other substance that causes a color reaction contains a polymerizable compound. It has a photosensitive layer on the support that exists outside the microcapsules.

Note that the image recording device equipped with the device of the present invention means one having a heat development device when using a type of photosensitive material that performs heat development before applying pressure to fix the image. When using a type that does not have a heat development device, it means a type that does not have a heat development device.

[Embodiment]

Below, before performing pressure transfer as a photosensitive material.

Embodiments of the present invention will be described by taking as an example a case where a thermal development type is used.

FIG. 1 is a sectional view of an image recording apparatus to which a color correction device of the present invention is applied.

In this embodiment, as the color photosensitive material, a photosensitive and pressure sensitive heat-developable color photosensitive material having effective sensitivities in the vicinity of wavelengths of 425 nm, 532 nm, and 650 nm is used. An exposure device 200 is arranged, and a portion including the exposure device 200 is isolated from other portions by a partition wall 224.

The exposure device 200 includes an illumination lamp 208 and a mirror 210.
4, and the imaging lens/filter unit assembly 216
, mirrors 218 and 220 that move in the same direction by 1/2 of the scanning distance of the illumination lamp 208, and a fixed mirror 222.

An opening 2 is provided in the portion through which the optical axis 226 of the exposure apparatus 200 passes.
28 is provided, and a shutter device [240 is disposed in the opening 228.

A photosensitive material cartridge 14 containing a photosensitive material roll 12 wound with a photosensitive and pressure sensitive heat-developable color photosensitive material S (hereinafter referred to as photosensitive material) is removably attached to the side of the housing 1. At the outlet 16 of the photosensitive material S of the photosensitive material cartridge 14, a pair of photosensitive take-out rolls 22,22 housed in the magazine connection dark box 20 are arranged, whereby the photosensitive material S wound on the photosensitive material roll 12 is placed in a predetermined position. Sometimes it is cut out to a certain length.

When the leading edge of the photosensitive material S advances, the photosensitive material take-out rolls 22.22 move in a direction away from each other as shown by the imaginary lines to facilitate the advance of the photosensitive material S. A cutter unit 23 for cutting the photosensitive material S is provided in front of the magazine connection dark box 20 (hereinafter, the term "front" refers to the downstream side in the traveling direction of the photosensitive material, etc.). Furthermore, a guide plate 24 is arranged.

In front of the guide plate 24, an exposed photosensitive material support roll 26 and two photosensitive material nip rolls 28 and 30 pressed against the exposed photosensitive material support roll 26 are arranged. The photosensitive material S guided by the guide plate 24 is brought into close contact with the exposed photosensitive material support roll 26 by the photosensitive material nip rolls 28.30.
Imagewise exposure is performed by exposure device 200 at a position 32 between 30 and 30 .

In front of the exposed photosensitive material support roll 26, a heat developing device 40 is arranged which heats and develops the photosensitive material S exposed to f8 light. The heat developing device 40 includes a developing housing 42 having a heat insulating effect, and is disposed within the developing housing 42, and has a width of about 12 mm.
An endless belt 50 is supported by a heating roll 44 heated to 0° C. and four belt support rolls 46, 47, 48, 49, and is wound around the outer periphery of an approximately 270° arc of the heating roll 44, and the support roll 49. The nip roll 52 is pressed against the nip roll 52.

The heat developing bag M40 further includes an exposed light-sensitive material support roll 26.
A guide device 54 guides the photosensitive material S fed from the heating roll 44 onto the heating roll 44 and separates the photosensitive material S from the heating roll 44 after being heated and developed; It has a vertical guide device 58 for guiding to the exit 56, and the exit 56 is provided with a sensor 60 for detecting the tip of the sensitive material.

Directly below the outlet 56, a pair of pressure rolls 62, 64,
A photosensitive material image-receiving paper stacking device comprising a nip roll 66 pressed against a pressure roll 64, and a guide member 68 that guides the image-receiving paper C fed by the pressure roll 64 and the nip roll 66 to the contact portion of the pressure rolls 62 and 64. is placed.

Sensitive image paper overlay device! A receiving paper supply device 72 is arranged on the side of the paper 70 . The image-receiving paper supply device 72 includes an image-receiving paper supply cassette 74 that protrudes from the housing 1 and is detachably attached, an image-receiving paper take-out roll 76 for feeding out the image-receiving paper C in the cassette 74, and a feed-out roll 76. The output image-receiving paper C is pressed onto the roll 6.
A guide plate 78 that guides the contact portion between the nip roll 6G and the nip roll 6G.
It consists of. Here, the width of the image-receiving paper C is about 6 LIIm smaller than the width of the photosensitive material S, and in the photosensitive image-receiving paper stacking device 70, the width of the image-receiving paper C is smaller than the width of the photosensitive material S.
are superimposed so that they are in the center.

A pair of pressure nip rolls 80, 82 and pressure nip rolls 80, 8 are provided below the photosensitive image receiving paper stacking device 70.
A transfer device 88 is provided, which includes backup rolls 84 and 86 for equalizing the pressure of the two in the axial direction. Pressure nip roll 80.82 is approximately 500kg/
They are pressed together by the pressure of a&.

A photoreceptor paper peeling device 90 is provided below the transfer device 88 . The sensitive image receiving paper peeling device 90 includes a guide member 92, a first feed roll 94, a second feed roll 96, and a first
It consists of a peeling belt 102 that is wrapped around guide rolls 98.degree.

A sensitive material disposal section 104 is provided on one side of the peeling device i90, and a fixing device 106 is provided on the other side.

The photosensitive material disposal unit 104 includes a guide member 108, a pair of feed rolls 110, 112, and a waste box 114, and the photosensitive material S sent from the peeling device 90 and guided by the guide member 108 is sent by the feed rolls 110, 112. Throw it into the waste box 114.

The fixing device 106 includes a guide member 120 and a reflecting member 12.
2 ultraviolet irradiation lamps 124 and a pair of feed rolls 1
26 and 128, and sent from the peeling device 90.

The image receiving paper C guided by the guide member 120 is
Fixation is performed by irradiating ultraviolet light for seconds.

In front of the fixing device 1106, a take-out tray 13G for receiving the image receiving paper C is attached so as to protrude from the housing 1.

FIG. 2 is a schematic diagram of a measurement bag R308 for measuring the color tone of a recorded object, and FIG. 3 is a block diagram of a measurement result digitization circuit 405.

A measuring bag [308] is provided independently of the image recording device, for example, and is placed on a recording material, and the formed image 401 is irradiated with a lamp 402, and the reflected light is passed through a color separation filter 4.
A photoelectric conversion element 404 such as a photodiode or an amorphous silicon diode converts the light into an analog signal, and a digitization circuit 405 digitizes the analog signal. The measurement results are then sent to a control section within the image recording device via a cable or the like.

In FIG. 3, 403a, 4Q3b, and 403c are filters that transmit red, green, and blue light, respectively;
04° 410 and 412 are photoelectric conversion elements that convert light into electric current. 404 is a photoelectric conversion element that converts red light into electric current.

406 is an operational amplifier that converts current to voltage, 407 is an analog switch, 408 is a sample and hold circuit, 409
is an A/D converter, 410.412 is a photoelectric conversion element that converts green light and blue light into current, respectively, and 411.413 is an operational amplifier of the element. The measurement result quantized to, for example, 8 bits by the A/D converter 409 is compared with a reference color tone based on the coloring characteristics of the photosensitive material by the microprocessor 414, and calculations are performed to compensate for the difference with the reference color tone. It will be done.

FIG. 4 is a block diagram of color correction, in which the microprocessor 414 performs calculations based on the measurement results from the digitization circuit 405 and displays the amount of color correction on the display section 415. Based on the correction amount displayed on the display unit 415,
When the operator inputs a correction amount from the input section 416, the microprocessor 414 controls the operation of the filters 417, 418 and the aperture device 419 according to the input correction signal. Each of the filters 417 and 418 has a cyan portion, a magenta portion, and a yellow portion and a cyan portion, with a transparent portion sandwiched therebetween.

FIG. 5 is a schematic diagram of a color correction amount display input section.

This display input section includes a display section 420 for displaying the amount of color correction for the three colors cyan, magenta, and yellow based on the measurement results, and input switches 421, 422, 423, and 42 for inputting the amount of correction.
4, 425, and 426 display the correction amount of each color in 9 levels using an LED, for example, the cyan color correction amount is input from the input switch 421 or 424, and the magenta color correction amount is Input switch 422 or 42
5, and the yellow color correction amount is input from input switch 42.
Enter from 3 or 426. In FIG. 5, the correction amounts for cyan, magenta, and yellow are each +1. -1. +2
To input this correction amount, press the input switch 42.
4 once, input switch 422 once, input switch 4
By pressing 26 twice. Based on this input amount, the microprocessor 414 controls the positions of the aperture device 11419 and the filters 417 and 418 to perform color correction.

This display input unit is related to correction using three-color display, but it is also an aperture device that can display and input the positions of the aperture and two filters! 419 and fill; 417° and 418 correction positions are 1, for example, displayed relative to the number 5 on the display section (not shown), and 9, for example, the aperture device 419, the filter 41
7, filter 41g are displayed in order as shown in 6-4-3. This display is an aperture device! 419 is increased by one step, the density of the filter 417 is decreased by one step, and the density of the filter 418 is decreased by two steps, and by operating the numeric keypad (not shown) in the order of 6.4.3.

A microprocessor 414 controls the position of the throttle device 419 and filters 417,418.

Note that although the above-described correction amount input section inputs the correction amount according to the displayed value, it is not necessary to input the displayed value exactly, and the color tone can be changed arbitrarily.

Although it is operationally preferable that the measuring device 308 be provided independently of the image recording apparatus main body and electrically connected to the main body control section through a cable or the like, it may be provided integrally with the image recording apparatus main body.

〔Effect of the invention〕

According to the present invention, the color tone of the output recording material is measured by a measuring device, the difference between this measurement result and a reference color tone is calculated and displayed, and input is performed based on the displayed correction amount, and the aperture device and Since the operation of color correction means such as filters is controlled, appropriate color correction can be easily performed in accordance with the characteristics of the photosensitive material without requiring specialized knowledge.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an image recording apparatus equipped with the device of the present invention, FIG. 2 is a schematic diagram of a measuring device, FIG. 3 is a block diagram of a digitizing circuit, FIG. 4 is a color correction block diagram, and FIG. It is a schematic diagram of a display input part. Symbols in the figure: S...Photosensitive material C...Receiving paper 1...
・Housing 12...Sensitive material roll 14・
...Sensitive material cartridge 16...Exit 20...
Magazine connection dark box 22...Sensitive material extraction roll 23...Cutter unit 24...Guide plate 26...Exposed sensitive material support roll 28.30...Sensitive material nip roll 32...Exposure position 40
...Heat developing device 42...Developing housing
44...Heating roll 46, 47.48.49...Belt support roll 50...Belt 52
...Nip roll 54...Guide device
56...Exit 58...Vertical guide device 60
... Sensors 62, 64 ... Pressure roll 66
...Nip roll 68...Guide member
70...Sensitive material image-receiving paper stacking device 72...Image-receiving paper supply device 74...Image-receiving paper supply cassette 76.
...Receiving paper roll 78...Guide plate 80,
82... Pressure nip roll 84.86... Backup roll 88... Transfer device 90.
・Peeling device 92 ・Guide member 94 ・
...First feed roll 96...Second feed roll 9
8.100...Guide roll 102...Peeling belt
104... Sensitive material disposal section 106... Fixing device 108... Guide members 110, 112.
...Feed roll 114...Disposal box 120
... Guide member 122 ... Reflection member 12
4...Lamp 126.128...
Feed roll 130...take-out tray 200...
...Exposure device 224...Partition wall 22
8... Opening 308... Measuring device 401
...Image 402...Lamp 403.
...Color separation filter 404, 410.412...Photoelectric conversion element 405...Digitalization circuit 406.4
11.413...Operation amplifier 407...Analog switch 408...Sample halt circuit 409...
・＾/D converter 414...Microprocessor 415...Display section 416...
Input section 417, 418...filter 419.
... Aperture device 420 ... Display section 421, 422.423.424.425.4.26.
...Input switch (and 3 other people) Fig. 2 Fig. 5 ω

Claims (1)

[Claims] Color photosensitive material that has spectral sensitivity at least in the visible light region is irradiated with three types of light having different wavelengths, and a color image is recorded on the color photosensitive material by controlling the color development of yellow, magenta, and cyan. A color correction device for an image recording device, comprising means for measuring the color tone of an obtained recording, means for performing calculations to compensate for the difference between the measurement result and the reference color tone, and a color correction amount based on the calculation result. 1. A color correction device comprising: means for displaying a color correction amount; and an input section of a color correction means for performing color correction corresponding to a color correction amount.