JP2822499B2 - Colored paper and image forming apparatus using the same as a recording medium - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus using a photosensitive pressure-sensitive recording medium, and relates to a direction of sensitivity correction based on temperature and humidity of a photosensitive pressure-sensitive paper and a lot.

[Prior Art] Conventionally, in an image forming apparatus using photosensitive pressure-sensitive paper, a roll-shaped photosensitive sheet is provided on the side of a roll-shaped photosensitive sheet in order to prevent an output image from being affected by temperature, humidity, lot-to-lot variation, etc. Data such as temperature, humidity, and lot variation are corrected using a reading means such as a barcode.

[Problems to be Solved by the Invention] However, an image forming apparatus using a photosensitive and pressure-sensitive recording medium does not develop a color with a roll-shaped photosensitive sheet alone, but develops a color by performing pressure development together with a color developing paper.

In other words, the pressure development breaks the microcapsules of the photosensitive sheet under pressure, causing the dye precursor contained in the capsule to flow out of the capsule and causing a chemical reaction between the dye precursor and the developer carried on the developing paper. The color is developed and developed as a visual image.

For this reason, it is not possible to correct variations on the color developing paper side or the like simply by correcting the data based on the temperature and humidity of the roll-shaped photosensitive sheet alone and the variation of the lot as in the related art, and it is not a complete correction method.

The present invention has been made in order to solve the above-mentioned problems, and a reading device that includes data such as temperature and humidity and variation between lots on the color developing paper side, and further reads the data on the device side, and the reading device. Provided is an image forming apparatus having a mechanism for performing correction based on data.

[Means for Solving the Problems] To achieve this object, the developing paper according to claim 1 forms a latent image by exposure on a photosensitive recording medium coated with photosensitive pressure-sensitive microcapsules containing a dye precursor. Forming
A color developing paper coated with a color developing agent that forms a visualized image by performing a pressure reaction with the photosensitive recording medium to form a visualized image by chemically reacting with the dye precursor, and data indicating sensitivity of the chemical reaction of the color developing agent. Is recorded using a barcode or the like.

Further, the image forming apparatus according to claim 2, wherein the exposure means for forming a latent image on a photosensitive recording medium coated with photosensitive pressure-sensitive microcapsules containing a dye precursor, and the photosensitive recording medium, A pressure developing device for superposing and pressure-developing a color-developed paper coated with a color developer that forms a visual image by chemically reacting with the dye precursor, wherein the chemical reaction applied to the color-developed paper is performed. And a control means for changing the exposure condition of the exposure means or the pressurization condition of the pressure developing device in accordance with the data read by the reading means.

[Function] In the color-developing paper according to claim 1 having the above-described configuration, since data on the sensitivity at the time of chemical reaction with the dye precursor is recorded, appropriate conditions for temperature and humidity and variations between manufacturing lots are recorded. To form an image.

3. The image forming apparatus according to claim 2, wherein the reading unit reads data relating to a chemical reaction with the dye precursor of the developed paper, and the control unit forms an exposure latent image on the photosensitive recording medium in response to the read data. Or the pressure condition of the pressure developing device for pressure-developing the photosensitive recording medium and the developed paper is changed. For this reason, even if the temperature and humidity change or the manufacturing lot changes, the sensitivity of the color developing paper changes, so that an image can be formed stably.

EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples.

FIG. 1 is a schematic sectional view of a light-sensitive pressure-sensitive copying machine capable of full-color copying. In addition, photosensitive paper that enables such copying (consisting of microcapsule paper and color-developed paper)
Has been proposed in JP-A-58-88739 and the like, and will not be described in detail here.

The photosensitive pressure-sensitive copying machine 40 is composed of a platen glass 2 and a platen cover 1 whose top plate part can be moved in the left-right direction as shown in FIG. Can be set in condition. A light source including a halogen lamp 3 extending in a direction perpendicular to the moving direction of the original platen glass 2 and a semi-cylindrical reflecting mirror 4 arranged so as to surround the lamp is fixed to an upper right portion of the copying machine 40. Light is irradiated in a line shape toward the platen glass 2.

Therefore, the light emitted from the halogen lamp 3 can sequentially irradiate the entire surface from the left end to the right end of the platen glass 2 by moving the platen glass 2 in the left-right direction. The light emitted from the light source passes through the transparent platen glass 2 and is reflected by the original placed thereon, but the upper surface of the platen glass 2 is designed to prevent the emitted light from leaking from other parts than the original. A document table cover is provided to cover the document table.

In order to use the light emitted from the halogen lamp 3 with high efficiency for irradiating the original, a reflector 5 is provided on the left side of the light source.
Are disposed to reflect light that does not directly go to the original and use it again for irradiating the original.

A fan 6 and a louver 7 for introducing air from outside are provided on the right side of the halogen lamp. Halogen lamp 3 by which air is efficiently applied to platen glass 2
From the original placed on the original platen glass 2 and reflected by the original, passes through the filter 8 and enters the lens 9. The filter 8 changes the light transmission characteristics according to the sensitivity characteristics of the microcapsule paper 37 and adjusts the color tone of the copied image. The lens 9 is mounted on a lens mounting plate 10 so that a small angle adjustment with respect to the optical path is possible. The light condensed by the lens 9 is turned by 180 ° by the two reflecting mirrors 11 and is imaged on the microcapsule paper 37 closely below the exposure table 19. The two reflection mirrors 11 are mirror mounting plates 12
The adjustment of the optical path length and the adjustment of the focus are performed by fine adjustment of the mounting position of the mirror mounting plate 12.

On the other hand, the long microcapsule paper 37 is
It is housed in a detachable cartridge 13 disposed below the platen glass 2 while being wound around 14, and one end thereof reaches a winding shaft 25 via a number of rollers and a pressure developing device 20. .

That is, the microcapsule paper 37 that has come out from under the cartridge 13 is guided by the feed roller 15 and the Tyco roller 17, passes under the exposure table 19, and is then supplied to the pressure developing device 20. Thereafter, the microcapsule paper 37 that has passed through the pressure developing device 20 is separated from the release roller 23 and the meandering adjustment roller.
After being guided to 24, it is wound on a winding shaft 25. The unexposed microcapsule paper 37 after leaving the cartridge 13 is kept unexposed by the light-shielding cover 16.

The transport speed of the microcapsule paper 37 is controlled to be constant by the capsule paper feed roller 22 and is matched with the moving speed of the platen glass 2 so that the microcapsule paper 37 passes through the exposure table 19. A latent image of a predetermined line of the original is sequentially formed.

In addition, a developing paper cassette 32 that accommodates a developing paper 38 of a cut paper type is provided below the pressure developing device 20,
The developed paper 38 is taken out one by one by the half-moon roller 33, and the leading end is aligned by the developed paper roller 34 and the registration gate 35, and then conveyed to the paper carry-in port of the pressure developing device 20. Here, a bar code 44 is attached to the back surface of the color developing paper 38.

Therefore, the microcapsule paper 37 and the color developing paper 38 are supplied to the pressure developing device 20 in a state of being in close contact and integrated.
The pressure developing device 20 has a small-diameter roller 21 and a backup roller.
It is composed of 31. The microcapsule paper 37 on which the latent image is formed and the developer application surface of the developer paper 38 are contacted on the inner side and are united as a single body, and are sandwiched between the small-diameter roller 21 and the backup roller 31 to apply pressure. Can be The unexposed microcapsules are destroyed by this pressure, and an image is formed on the developing paper 38.

Microcapsule paper 37 and developer paper coming out of the pressure developing device
38 is transported by the capsule paper feed roller 22 and peeled off
The microcapsule paper is separated upward by 23 and the developed paper 38 is separated in the orthogonal direction. After the color is accelerated by the heat fixing device to form an image on the color developing paper 38, the color developing paper 38 is conveyed to the paper discharge tray 27 with the image side up. The heat fixing device includes a hollow heat roller 29 having a heater 30 therein and a developing paper feed roller 28.

The separated microcapsule paper has a meandering adjustment roller 24
Is wound around the winding shaft 25.

The operation of the above-described structure will be described below.

First, when the cartridge-shaped microcapsule paper 13 is set as in the prior art, the correction data due to the temperature and humidity and the variation between lots are added to the barcode data attached to the leader tape by a control block as shown in FIG. When recorded and loaded, the data is read by the barcode sensor 41 and stored in the storage unit 43 of the CPU. Further, since the color developing paper 38 is a cassette paper, correction data due to the temperature and humidity of the color developing paper and variations between lots are recorded in the form of barcode data 44 on the back surface which is not a color developing surface for each sheet. In the present image forming apparatus, the developed color paper becomes the output paper as it is, so that the barcode data 44 on the back surface is recorded with a material that reflects infrared light that cannot be seen. When the start button is pressed, the developing paper 38 is moved from the developing paper cassette 32 to the half moon roller.
When the paper is fed by 33, the data is read by a barcode sensor 42 provided in the middle and stored in the storage unit 43 of the CPU.The CPU calculates these data before exposing the document and determines the correction amount. Controlling the insertion amount of the filter, the amount of light, the pressing condition of the pressure developing device, etc. (FIG. 2) In this embodiment, data is written one by one on the back side of the developing paper, which is a cut paper. One package is considered to have the same characteristics, and the data may be set in the package for each writing package and in the color paper cassette, and the correction data may be read from the package.

[Effects of the Invention] As is apparent from the above detailed description, according to the color developing paper according to the first aspect, since data relating to sensitivity at the time of chemical reaction with the dye precursor is recorded, temperature and humidity and production An image can be formed under appropriate conditions for variations between lots.

According to the image forming apparatus of the present invention, the reading means reads data relating to the chemical reaction with the dye precursor of the color developing paper, and the control means forms an exposure latent image on the photosensitive recording medium in response to the read data. The exposure condition of the exposure means is changed, or the pressure condition of the pressure developing device for pressure-developing the photosensitive recording medium and the developed paper is changed. For this reason, even if the temperature and humidity change or the manufacturing lot changes, the sensitivity of the color developing paper changes, so that an image can be formed stably.

[Brief description of the drawings]

1 to 3 show an embodiment of the present invention. FIG. 1 is a sectional view of the present apparatus, FIG. 2 is a block diagram of a control unit, and FIG. FIG. 3 is a plan view of the color-developed paper marked with “”. In the figure, 3 is a halogen lamp, 8 is a filter, 9 is a lens, 19 is an exposure table, 20 is a pressure developing device, 32 is a developing paper cassette, 38 is a developing paper, 40 is a copying machine, 41 is a barcode sensor (capsule). Reference numeral 42 denotes a barcode sensor (for developed paper), 43 denotes a memory, and 44 denotes a barcode.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-64-76050 (JP, A) JP-A-61-143738 (JP, A) JP-A-1-257330 (JP, A) JP-A-60-160 168170 (JP, A) JP-A-60-244977 (JP, A) JP-A-62-1201746 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) G03F 7/004 514

Claims (2)

(57) [Claims] 1. A latent image is formed on a photosensitive recording medium coated with photosensitive and pressure-sensitive microcapsules containing a dye precursor by exposure, and the latent image is developed together with the photosensitive recording medium by pressure development to chemically react with the dye precursor. A color developing paper coated with a color developing agent for forming a color developing image, wherein data indicating sensitivity of the chemical reaction of the color developing agent is recorded by a bar code or the like. 2. Exposure means for forming a latent image on a photosensitive recording medium coated with photosensitive and pressure-sensitive microcapsules containing a dye precursor, and chemically reacting the photosensitive precursor with the dye precursor on the photosensitive recording medium. An image forming apparatus comprising: a pressure developing device configured to press and develop a color-developed paper coated with a color developer for forming a visual image; and reading data indicating sensitivity of the chemical reaction applied to the color-developed paper. Means for controlling an exposure condition of the exposure device or a pressure condition of the pressure developing device in accordance with data read by the reading device.