JPH0514655A - Image recorder - Google Patents

Abstract

(57) [Abstract] [Purpose] An object is to provide an image recording apparatus capable of producing one output image by one scanning operation. The data of at least two colors among the data of three colors of RGB read by the image reading unit 100, or the data of three colors of RGB after the image processing is finished after being read by the image reading unit 100. Of these, a storage unit 109 for storing data of at least two colors is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image recording device,
In particular, the present invention relates to a digital color image recording apparatus capable of color copying a color original.

[0002]

2. Description of the Related Art Conventionally, a digital color copying machine (image recording apparatus) of this type has been required to capture an image three times when capturing an original with a scanner. That is, the red, green, blue (R,
G, B) image data for one color of R, G, B which has been color-corrected based on the image data is directly transferred to the image output means (for example, liquid crystal display device) in real time without being stored in the image storage means. To display the first color (eg R),
After displaying the first color, a predetermined exposure is performed. Then 2
After the output image of the second color (for example, G) is obtained in the same manner by the second scanning, predetermined exposure is performed, and further 3
After the output image of the third color (for example, B) is obtained by the second scanning, predetermined exposure is performed, and further development is performed.
I was getting one color image (hard copy). Therefore,
It was necessary to scan the scanner at least 3 times in order to obtain one color output image.

[0003]

However, the scanning needs to be operated at a high speed in synchronization with the display speed of the image output means, and as described above, at least three times are required to obtain one output image. Scanning was needed. Therefore, there is a problem that high speed and durability are required in designing the mechanism, which causes an increase in cost of the mechanism device.

Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to provide an image recording apparatus capable of obtaining one output image only by one scanning operation.

[0005]

In order to solve the above-mentioned problems, the present invention separates image data of an image of an original read by a reading device into three colors, and sequentially displays them on a display output device after color separation. An image recording apparatus for obtaining a hard copy by sequentially exposing a photosensitive paper on the basis of each color image formed is provided with a color data storage unit for storing the color data separated into colors, and the reading operation is performed once. After that, the color data that has been color-separated is stored in the color data storage device, and a control unit that controls to display each color image on the display output device based on the stored color data is configured.

[0006]

According to the present invention, the image data read from the original is color-separated into three colors by one reading operation. The control unit
The color data after color separation is stored in a color data storage device, displayed on a display output device based on the color data in a predetermined order, and exposed on a photosensitive paper. Therefore, exposure of three colors can be performed by one reading operation.

[0007]

The present invention will be described below with reference to the illustrated embodiments. Figure 2 shows a digital color copier (digital copier)
1 shows a schematic configuration diagram of 1.

As shown in FIG. 2, the digital copier 1
It is composed of a scanner 100, an image processing device 40, and an image output device S using a liquid crystal shutter.
A photosensitive recording medium composed of (hereinafter referred to as microcapsule paper) and a color developing paper 8 is used. The surface of the support of the microcapsule paper 7 used in this example is coated with microcapsules, and the microcapsules contain a dye precursor which reacts with a developer described below. ing. The surface of the support of the color developing paper 8 is coated with a color developer, and when the color developer and the dye precursor react with each other, color is developed, but since the details are described in detail in US Pat. No. 4,399,209 and the like, Description is omitted in this specification.

The scanner 100 is a contact type color CC.
It is composed of a D30, a halogen lamp 31 and the like.
Light from the halogen lamp 31 is projected onto the original MS,
The light reflected by this projection is read by the CCD 30.
The read information is converted into analog data by the image processing device 4
To the liquid crystal display panel (LCD) 6 after being subjected to color correction and the like by this processing device.

The image processing apparatus 40 will now be described with reference to FIG.
Will be explained. As shown in FIG. 1, the image processing device 40 is
A / that digitizes analog data from the scanner
Line memories 101, 102, 103 for storing data for one line of the D converter 101 and the color CCD 30
An image processing circuit 105, an LCD driving circuit 106 for driving an LCD, a memory 108 for storing data displayed on the LCD, and a memory 109 for storing green and blue data.
Etc.

As shown in FIG. 2, a halogen lamp 3 is used as an exposure light source, and a reflector 2 is arranged above the halogen lamp 3. Below the halogen lamp 3, a condenser lens 4 and an infrared cut filter 5 are sequentially arranged. Below the infrared cut filter 5,
Color filters 22R, 22G, which can be alternately inserted in the optical path,
A filter unit 22 composed of 22B and a liquid crystal display panel (LCD) 6 are arranged.

An unexposed microcapsule paper 7 is wound around a cartridge shaft 15 inside a light-shielding cartridge 18. A feed roller 19 is arranged on the right side of the cartridge 18. The microcapsule paper 7 is statically exposed below the LCD 6 to form a latent image. The microcapsule paper 7 passes between the pressure rollers 11 a and 11 b and is wound around the winding shaft 16.

A half-moon roller 9 is arranged above a cassette 8a for accommodating the color-developing paper 8 in a stack, and a paper feed roller 1 is arranged on the left side.
0 and a paper feed guide 17 are provided. A thermal fixing device 12 is disposed below the cassette 8a, a heater 13 is disposed inside the thermal fixing device, and a transport belt 14 is disposed below the cassette.

Next, the operation of the digital copier 1 will be described.
First, when a print start key (not shown) is pressed, the halogen lamp 31 of the scanner 100 is turned on, and the original document MS is read by the color CCD 30. The line memory 10 digitized by the A / D converter 101 for each line read by the color CCD 30
2 stores red data, line memory 103 stores green data, and line memory 104 stores blue data for each line. When the data for one line is prepared, the red, green, and blue data are transferred to the image processing circuit 105 for each dot, and the first image-processed red data is L.
Transferred to the memory 108 via the CD drive circuit 106,
Next, the image-processed green and blue data are transferred to the memory 109. Next, the scanner 100 moves one line,
Similarly to the above, the red data is transferred to the memory 108, and the green and blue data is transferred to the memory 109. Such an operation is repeated for one screen.

First, an image corresponding to red corresponding to an image signal input from the outside is displayed on the LCD 6. When the red data for one screen are complete, the halogen lamp 3 is turned on. The light of the halogen lamp 3 is efficiently condensed by the reflector 2 and the condenser lens 4 to become light having a predetermined spread, and the infrared cut filter 5 and the red filter 22R.
It is irradiated onto the LCD 6 via. The stationary microcapsule paper 7 is exposed by the light selected by the LCD 6 which is controlled according to the red signal of the image to be stored. When the red exposure is completed, the red filter 22R is replaced with the green filter 22G.

Next, the red signal of the LCD 6 is stored in the memory 109.
By transferring the data stored in the memory 108 to the memory 108, the data is switched to the green signal, and the exposure is performed in the same manner as described above. The same applies to the blue color, and the halogen lamp 3 is turned off when the three exposures are completed. As described above, a color latent image is formed on the microcapsule paper 7.

Next, the microcapsule paper 7 is taken up by the take-up roller 1.
6 and the driving force of the feed roller 19 pressurize the roller 11a,
It is sent in the direction of 11b. On the other hand, the developer paper 8 is fed one by one by the half-moon roller 9, passes through the paper feed guide 17,
The sheet is fed to the pressure rollers 11a and 11b by the sheet feeding roller 10. The pressure rollers 11a, 11 are arranged so that the exposed surface of the microcapsule paper 7 and the surface of the color developing paper 8 to which the color developer is applied face each other.
The pressure is applied by b, and the image is transferred to the color developing paper 8. The color-developed paper 8 is further conveyed by the conveyor belt 14, and the color development is promoted by the heating of the heater 13 of the thermal fixing device 12, and is output as an image.

Although the connection position of the memory 109 is on the output side of the image processing circuit 105 in this embodiment, it may be arranged on the input side of the image processing circuit 105. Image forming unit is LC
The printer is not limited to D6, and may be, for example, a thermal sublimation type printer.

[0019]

As described above, according to the present invention, 1
For example, three times of color output processing for red, green, and blue is performed by the data acquisition operation of the scanner, so the scanner operation mechanism requires less high speed and durability than before, and the cost of the device is reduced. Contribute to.

[Brief description of drawings]

FIG. 1 is a block diagram of an image processing circuit according to an embodiment of the present invention.

FIG. 2 is a side view of an embodiment of the present invention.

[Explanation of symbols]

6 ... Liquid crystal display panel (image output section) 7 ... Photosensitive paper 8 ... Color paper 30 ... CCD 40 ... Image processing device 100 ... Scanner 101 ... A / D converter 102 to 104 ... Line memory 105 ... Image processing circuit 106 ... LCD driving circuit 108, 109 ... memory MS ... manuscript S ... Image output device

Claims (2)

[Claims] 1. An image data of an image of an original read by a reading device is color-separated into three colors, and after color separation, the photosensitive paper is sequentially exposed based on each color image displayed on a display output device. An image recording apparatus for obtaining a hard copy according to the above, comprising a color data storage device for storing the color-separated color data, wherein the color-separated color data is stored in the color data storage device after performing the reading operation once. An image recording apparatus comprising: a control unit that stores and controls each color image to be displayed on the display output device based on the stored color data. 2. A color data storage device for storing color data of two colors among the color data of the three color-separated colors, wherein the color data of one color is real-time after the reading operation is performed once. And a control unit for controlling to display on the display output device and expose on the photosensitive paper, store the other two color data in the color data storage device, and sequentially take out and expose. The image recording apparatus according to claim 1, wherein