JPH02137836A - Image recorder - Google Patents

Abstract

PURPOSE:To prevent picture blurring at the time of exposure even when a photosensitive medium and a mask original plate are not completely adhered with each other by providing an adhering auxiliary body composed of an optical fiber array inside the belt which holds and carries the mask original plate. CONSTITUTION:The adhering auxiliary body arranged inside the belt 32 is composed of the optical fiber array 36. Because the light is transmitted through the adhering auxiliary body 36 in the form of parallel light beams at the time of exposure, exposure quantity where brightness is uniform throughout the entire area is obtained. Also, the light transmitted through the optical fiber array 36 is prevented from detouring the periphery because it is transmitted in the form of parallel light beams. This prevents picture blurring, etc. even when the photosensitive recording medium 50 and the mask original plate 15 are not completely adhered with each other and a gap is generated between them.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image recording apparatus that exposes a photoreceptor using a mask original.

[Conventional technology]

The applicant of the present invention previously proposed in Japanese Patent Application No. 62-256000 a color image recording apparatus in which a monochrome laser printer is coupled to the upper part.

This color image recording apparatus is configured to form a color image using a mask original created by the monochrome laser printer.

Inside the color image recording device, an alignment device is provided which has a belt that electrostatically attracts and conveys the mask original conveyed from the monochrome laser printer. An exposure device having , green, and blue filters is disposed so as to be able to scan freely along the belt.

Furthermore, a photosensitive recording medium that is brought into close contact with the lower surface of the belt through the mask original during exposure is continuously arranged on the lower surface side of the alignment device, and on the downstream side of the alignment device, a photosensitive recording medium is continuously arranged. , a pressure developing device is provided which superimposes and develops the exposed photosensitive recording medium and the color developer sheet.

In the color image recording device, the mask original brought in from the monochrome laser printer is conveyed to the alignment device, and the photosensitive recording medium is held tightly against the belt of the alignment device by sandwiching the mask original. By scanning the exposure device in this state, the image of the mask original plate is transferred onto the photosensitive recording medium. By performing this operation for each color mask original using red, green, and blue filters, a latent image is formed on the photosensitive recording medium. Thereafter, the photosensitive recording medium is conveyed to the pressure developing device, which heats the color developer sheet and the photosensitive recording medium in a superimposed state to form a color image on the color developer sheet. We are trying to form a

By the way, in the above image recording apparatus, when the photosensitive recording medium is brought into close contact with the belt via the mask original, it is difficult to completely bring the photosensitive recording medium and the mask original into close contact because the belt has elasticity. There is a problem. Therefore, the applicant has already submitted the
Utility model registration application dated May 7th
i-72), in order to achieve more complete adhesion, a translucent adhesion auxiliary body is provided inside the belt, and the action of this adhesion auxiliary body allows the photosensitive recording medium and mask original to be completely bonded. We have proposed an image recording device that is brought into close contact with the user.

[Problem to be solved by the invention]

However, even if the adhesion aid is used as mentioned above,
It is difficult to bring the photosensitive recording medium and the mask master into perfect contact, and on the other hand, with conventional adhesion aids, the light from the exposure device passes through in random directions, so there is even a small gap between the two. If a gap occurs, there is a problem that so-called image blurring occurs during exposure. In order to completely prevent this image blurring, it is necessary to manufacture a contact auxiliary body with high precision and sufficient strength, as well as an exposure table, which raises the problem of increased manufacturing costs.

In addition, in the conventional exposure apparatus described above, there is a difference in the amount of light between the center and the edges of the image, that is, the amount of light is high at the center and low at the edges, and the amount of light is different between the photosensitive recording medium and the mask original. It is difficult to apply a uniform amount of light over the area, that is, the entire image area, and as a result, there is a problem in that so-called brightness and darkness are created in the image.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems of the conventional technology, eliminate unevenness in the amount of light applied to the entire image area, and even if the contact between the photosensitive recording medium and the mask original is not perfect, the exposure It is an object of the present invention to provide an image recording device that does not sometimes cause so-called image blur.

[Means to solve the problem]

In order to achieve the above object, an image recording device according to the present invention includes:
An image recording device comprising a translucent belt that supports and conveys a mask original created based on image information, and a belt tension roller that stretches the belt, the belt comprising an optical fiber array inside the belt. It is characterized by the provision of a contact auxiliary body.

[Effect]

According to the present invention, the light emitted from the light source and transmitted through the optical fiber array becomes almost parallel rays due to the limited nature of the incident ray angle on the light input surface of the optical fiber array and the limited nature of the output ray angle on the light output surface. Therefore, the amount of light that passes through the entire area of the adhesion auxiliary body is equal between the center and the edges, eliminating the phenomenon where the center of the image is bright and the edges are dark, and the overall It is possible to ensure an exposure light amount with uniform brightness. In addition, since most of the light that passes through the optical fiber array is transmitted as parallel rays, the light does not go around to the surrounding areas, and even if the photosensitive recording medium and the mask original plate are not in perfect contact with each other, there is a gap between the two. Even if there is a gap, the exposure will be good and so-called image blur will not occur.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

The drawing shows an embodiment of a color image recording device in which a monochrome laser printer is coupled to the upper part.A cylindrical photoreceptor 3 is disposed inside the monochrome laser printer 1. A polygon scanner 2 is disposed above the body 3 and draws an electrostatic latent image by irradiating the outer peripheral surface of the photoreceptor 3 with a laser beam. Further, a developing device 4 is disposed on the outer periphery of the photoreceptor 3, and is arranged in a paper path of the photoreceptor 3 to make the electrostatic latent image visible by applying toner to the electrostatic latent image. A transfer device 7 for transferring the toner image onto a sheet of paper is disposed at an opposing position.

On the upstream side of the monochrome laser printer 1, a paper feed cassette 5 storing paper such as plain paper or OHP sheets is removably arranged. A paper feed roller 8 is provided to convey the paper in the cassette 5 one by one between the photoreceptor 3 and the transfer device 7.

Furthermore, a fixing device 6 having a pair of fixing rollers is disposed downstream of the photoreceptor 3 of the monochrome laser printer 1, and a paper path switching device 10 is disposed downstream of this fixing device 6. It is set up.

Further, a monochrome paper ejection tray 11 is disposed above the monochrome laser printer 1, and a color paper ejection tray 12 is disposed downstream of the monochrome laser printer 1.
is installed. Then, the paper conveyed from the fixing device 6 is discharged by the paper bus switching device 10 to the monochrome paper output tray 11 if a black and white image is required, and if a color image is required, the paper is discharged to the monochrome paper output tray 11 by the paper bus switching device 10. The paper is discharged to the paper discharge tray 12. Further, the distal end side of the paper discharge tray 11 is rotatable between a position shown by a solid line in the drawing and a position shown by a chain line, and the color paper discharge tray 12
When the paper is rotated to the position shown by the solid line, the paper ejected from the laser printer 1 can be guided downward and carried into the color image recording device 20, and the paper is ejected from the laser printer 1. A set of three sheets of monochrome printed paper is used as a mask original plate 15 (15R, 15G, 15B) of the color image recording device 20.

Note that the monochrome laser printer 1 normally records image data transmitted from a host computer (not shown).

Next, the configuration of the color image recording device 20 will be explained.

Inside and above the color image recording device 20, an alignment device 31, a circulation guide 25, and first
A mask original conveying device 21 is provided in which a storage section 26 and a second storage section 27 are connected in an annular manner. A guide member 22 is disposed to guide the mask original 15 (paper) discharged into the mask original 12 between the alignment device 31 of the mask original transport device 21 and each storage section 26,27. Further, a mask original discharge tray 30 for discharging unnecessary mask originals 15 is arranged below one side of the color image recording device 20, and above the other side of the color image recording device 20. A manual feed tray 29 for manually feeding the mask original 15 is provided. Furthermore, the alignment device 3
1 and each storage section 26, 27, a gate 23 is arranged between the gate 23 and the mask original 15 carried in from the guide member 22 to the alignment device 31 side or the mask original discharge sheet. It is arranged to be distributed to the tray 30 side. Further, a gate 28a is arranged between the circulation guide 25 and each storage section 26, 27, and the mask original 15 conveyed through the circulation guide 25 is transferred to the first storage section 26 or the gate 28a. It is designed to be distributed to a second storage section 27. Further, between the manual feed tray 29 and each storage section 26, 27, a mask original 15 is manually fed from the manual feed tray 29.
A gate 28b is formed so that the mask original can be inserted into the mask original transport device 21.

Next, the configuration of the alignment device 31 will be explained.

As shown in FIG. 2, the alignment device 31 has an endless belt 32 and two belt rollers 37 and 37 that stretch the belt 32.

The belt 32 is made of a light-transmitting dielectric material with high strength and
One side of PET (polyethylene terephthalate) film, which has excellent heat resistance and dimensional stability, is coated with an ultraviolet curable resin such as acrylic or silicone to give the surface a pencil hardness of H to 4H. It is formed by processing it into an endless shape with the outer side facing out. Note that the back side of the belt 32 can be prevented from being charged by applying a transparent antistatic paint or depositing a conductive material on the back side of the belt 32.

The upstream belt roller 37 of the belt rollers 37 is formed by coating the outer periphery of a metal shaft with conductive rubber, and the outermost periphery of the downstream belt roller 37 is made of rubber. It is formed. Both ends of each of these belt rollers 37 are connected to a side frame 34.34 that constitutes a belt support frame disposed in parallel, and a side auxiliary frame 35.35 that is detachably and continuously formed on this side frame 3434. It is rotatably mounted.

According to this embodiment, the side frame 34.
34 and inside each of the belt rollers 37, as is clear from FIGS. 3 and 4, there is an optical fiber constructed by continuously connecting a large number of cylindrical optical fiber arrays 36a in the radial direction. A contact aid consisting of an array 36 is disposed to pass between the belts 32. Each of these optical fibers 36g is a normal optical fiber consisting of a core and a cladding, and the incident light angle on the optical input surface is approximately 306g.
The exposure device 41 which transmits through each of the cylindrical optical fibers 36a
Light from (described later) is transmitted as approximately parallel light rays. Therefore, the light from the exposure device 41 is aligned in parallel by the optical fiber array 36 and then projected onto the mask original 15.

Further, a belt feed motor 90 for rotationally driving the belt roller 37 is connected to one end of the belt roller 37 on the downstream side of the belt roller 37, and the belt feed motor 90 rotationally drives the belt roller 37. 32
is sent in the direction shown by the arrow in FIG. Further, the one side frame 34 and the side auxiliary frame 35 are connected to a belt support frame moving link 92 eccentrically attached to a pair of disk-shaped belt support frame moving plates 91 and 91.
．． 92 and a support link 93 located at the end of the side auxiliary frame 35, respectively, to be horizontally supported by the main body of the apparatus. Belt support frame movement motors 94 and 94 for rotationally driving each of the belt support frame movement plates 91 are connected to the main body of the apparatus, respectively. By driving the belt supporting frame moving link 92° 92 forward and backward via the frame moving plate 91° 91, each of the frames 34 and 35 can be moved within a horizontal plane in accordance with the alignment marks on the mask original 15. It is done like this. Further, a spring 95 whose one end is connected to the main body of the apparatus is connected to the other side frame 34, and this spring 95 is connected to the axis of the belt support frame moving link 92, 92 and the support link 93. They are arranged not at right angles but at an angle at a predetermined angle. This spring 95 causes the belt support frame moving links 92, 92, the support link 93 and the belt support frame moving plates 91, 91 to
The belt 32 is designed to absorb the backlash caused by the installation and backlash of gears, thereby improving the positioning accuracy of the belt 32.

Further, a registration roller 38 is brought into contact with the lower surface side of the belt roller 37 on the upstream side.
On the upstream side of the registration roller 38, the mask original plate 1 is placed.
A chute 39 is provided for guiding the roller 5 between the belt roller 37 and the registration roller 38.

Further, on the upper surface of the upstream side of the belt 32, a charging brush 40 having conductive fibers flocked thereon is disposed so as to be in contact with the surface of the belt 32, and the belt 32 is charged by the charging brush 40, and the The mask original 15 is attracted to the lower surface of the belt 32 by electrostatic attraction.

Further, on the lower surface of the belt 32 and in the vicinity of the registration roller 38, a mask original 15 sent between the belt opening roller 37 and the registration roller 38 is placed on the belt 32.
A sensor tie bar 33 is provided to guide the mask original 15 to the lower surface side of the mask 2, and the sensor tie bar 33 reads the alignment mark printed at a predetermined position on the mask original 15 and positions the mask original 15 at a predetermined position. Positioning sensors 33a, 33b, and 33c for setting are provided.

Further, an exposure device 41 extending in the width direction of the alignment device 31 is disposed near the top of the alignment device 31 so as to be able to reciprocate along the moving direction of the belt 32 of the alignment device 31. , this exposure device 41 has a reflecting plate 43 arranged above a linear white lamp 42 that reflects the light emitted from the lamp 42, and
A color separation filter 44, which is formed by switchably forming a red filter 44R, a green filter 44G, and a blue filter 44B, is arranged around the reflector 2 and the reflecting plate 43.

Furthermore, a flat plate-shaped exposure table 52 is disposed near the bottom of the alignment device 31, and a drive device (not shown) drives the exposure table 52 on the lower surface side thereof to move the exposure table 52 up and down. A cam (not shown) is provided to allow the

Further, a cartridge 51 is disposed below the upstream side of the alignment device 31, and stores a roll-shaped photosensitive recording medium 50 therein so as not to be exposed to light. The main material is a photocurable resin using a photopolymerization initiator disclosed in Publication No. 627143044, and a photocurable resin that cures in response to light of each wavelength of red, green, and blue, and a photocurable resin of cyan, magenta, and yellow. Microcapsules containing each dye precursor are coated onto a base sheet.

Further, below the exposure table 52, a pair of pressure rollers 7 are provided.
A pressure developing device 7o having a built-in pressure developing device 7o is disposed between the exposure table 52 and the pressure developing device 70, and a photosensitive recording medium 5 to be developed by the pressure developing device 7o.
a fixed roller 56 that clamps and fixes the pressure developing device 7;
A slack remover 55 and a movable guide 64 that prevent the photosensitive recording medium 50 from sagging when the developing process is performed in step o.
are arranged in sequence. Furthermore, the pressure developing device 70
A take-up roller 54 for winding up the photosensitive recording medium 50 is disposed below, and between the pressure developing device 70 and the take-up reroller 54, the photosensitive recording medium 50 is rolled at a constant speed. A driving roller 57 for conveying is provided.

After passing between the belt 32 and the exposure table 52, the photosensitive recording medium 50 in the cartridge 51 passes through a fixed roller 56, a slack remover 55, a movable guide 64, a pressure developing device 70, and a drive roller 57. The film is configured to pass therethrough and be wound up on a winding roller 54.

Further, a cassette 61 for storing a color developer sheet 60 is removably disposed below the color image recording device 20, and a drive device (not shown) is intermittently driven near the cassette 61. a paper feed roller 6 for conveying the developer sheets 60 one by one to the pressure developing device 70;
2 are arranged. The color developer sheet 60 is constructed by applying a color developer disclosed in Japanese Patent Application Laid-Open No. 58-88739 onto a base paper, and the cassette 61
It is stored inside with the color developer coated side facing downward.

Further, a heat fixing device 80 is disposed above the cassette 61, and this heat fixing device 8o includes a heat roller 82 with a built-in heater 81, an auxiliary roller 85, and the heat roller 82 and the auxiliary roller 85. It consists of an endless belt 84 installed between the rollers 84 and 83, and a presser roller 83 that is pressed against the heat roller 82 via the endless belt 84.

Further, on the downstream side of the heat fixing device 8o, there is a paper discharge tray 63 for discharging the color developer sheet 6o conveyed from the pressure developing device 70 to the heat fixing device 80 by the movable guide 64.
is installed.

Next, the operation of this embodiment will be explained.

First, when creating the red mask original plate 15R, in the monochrome laser printer 1, an electrostatic latent image is formed on the surface of the photoreceptor 3 by the polygon scanner 2 based on desired print data, and then the toner is removed by the developer 4. The electrostatic latent image is made visible by adhesion. Next, the paper is taken out one by one from the paper feed cassette 5 by the paper feed roller 8 and the photoreceptor 3
The toner image on the O2 photoreceptor 3 is transferred onto the paper by the transfer device 7. Then, this paper is conveyed to the fixing device 6, heated by a fixing roller to fix the toner image, and then discharged to the color paper output tray 12 via the paper bus switching device 10. Original version 1
You can get 5R. This red mask original plate 15R has toner as a light-shielding image placed on other parts of the photosensitive recording medium 50 in order to harden the microcapsules containing a cyan dye precursor in the microcapsules coated on the photosensitive recording medium 50. It is.

When forming a latent image using the red mask original plate 15R, the color paper discharge tray 12 of the monochrome laser printer 1 is in the position shown by the solid line, and the mask original plate 15R is The mask original is carried into the mask original transport device 21 of the image recording device 20.

The sensor 33a of the alignment device 31 detects that no other mask original 15 is present in the alignment device 31.

When confirmed by 33b and 33C, the mask original 15R is conveyed to the alignment device 31 by the gate 23. In addition, when another mask original 15 is transported to the alignment device 31 and subjected to exposure processing, the gate 2
3, the mask original 15R is guided to the mask original discharge tray 30.

Next, the belt 32 of the alignment device 31 is connected to the charging brush 40.
The mask original plate 15R is transported while being charged with electricity, and the static electricity charged on the mask original plate 15R is removed using a static eliminating brush (not shown).
R is guided by the sensor tie bar 33 and is attracted to the lower surface side of the belt 32 by electrostatic attraction force. After conveying the mask original 1.5R to a predetermined exposure position by driving the belt 32, the sensors 33a, 33b, and 33c read the alignment marks printed on the mask original 1-5R, and the alignment device 31 is driven to move the mask original 15R to an accurate position. In addition to the alignment mark, the mask original plate 15 is printed with a color mark indicating what color the mask original plate 15 is, and this color mark is printed at the same time as the alignment mark. It is read by a sensor not shown. Furthermore, the color separation filter 44 is equipped with a sensor that detects each filter 44R, 44G, 44B, and reads each color of each filter 44R, 44G of the exposure device 41.

44B, the color separation filter 44 is switched, and in this case, the red filter 44R is positioned directly below the exposure device 41.

In this state, the photosensitive recording medium 50 is clamped and fixed by the fixed rollers 56, and a drive device (not shown) rotates the cam at a predetermined angle to raise the exposure table 52, so that the photosensitive recording medium 50 clamps the mask original 15. While doing so, it is brought into close contact with the belt 32 of the alignment device 31. and,
When the exposure table 52 is brought into close contact with the belt 32, the exposure device 41
The exposure device 41 is scanned in the direction of the arrow A in the figure while the lamp 42 is turned on. As a result, the light from the lamp 42 passes through the red filter 44R, and this light passes through the mask original 15.
Exposure is performed by irradiating the photosensitive recording medium 50 through the light. Then, when the exposure is completed, the lamp 42 is turned off,
The exposure device 41 returns in the direction of arrow B. At this time, the color separation filter 44 of the exposure device 41 is switched by a drive device (not shown), and the green filter 44G is positioned directly below the lamp 42.

Further, while the exposure device 41 returns, the exposure table 52 is lowered by rotation of the cam, and the photosensitive recording medium 50 is separated from the alignment device 31 and the mask original 15. At this time,
A rewinding force is applied to the photosensitive recording medium 50 at the center of roll rotation of the photosensitive recording medium 50 inside the cartridge 51, and when the exposure table 52 is raised, the exposure table 52
A length corresponding to the amount of rise of the photosensitive recording medium 50 is pulled out from the cartridge 51, and when the exposure is completed and the exposure stage 52 is lowered, the photosensitive recording medium 50 is rewound to remove slack. .

As a result of the above operation, when the exposure by the red mask original 15R is completed and the lowering of the exposure table 52 is confirmed, the belt 32 of the alignment device 31 rotates, and the red mask original 15R is rotated.
passes through the circulation guide 25 section and passes through the first gate 28a
The user is guided to the storage section 26.

Next, when forming a latent image using the green mask original plate 15G, similarly to the case of forming a latent image using the red mask original plate 15R, the green mask original plate 15G created by the monochrome laser printer 1 is moved to the guide member. The mask original 15G is conveyed to the alignment device 31 via the belt 32, and is attracted to the lower surface of the belt 32 by electrostatic adsorption force and conveyed to a predetermined exposure position, and then aligned. Then, with the photosensitive recording medium 50 clamped and fixed by the fixed rollers 56 and the exposure table 52 raised, the exposure device 41
Exposure is performed by scanning the green mask original plate 15G, and a latent image is formed by the green mask original plate 15G, and the exposure device 41
The color separation filter 44 is switched so that the blue filter 44B is located directly below the lamp 42.

Subsequently, a latent image by the blue mask original 15B is also formed in the same manner as in the above operation.

Through the above operations, a latent image of a desired color image is recorded on the photosensitive recording medium 50.

Next, when the exposure is finished and the exposure table 52 is lowered, the drive roller 57 is rotated to rotate the photosensitive recording medium 5.
0 is wound onto a winding roller 54. At this time, the fixed roller 56 and the pressure roller 71 of the pressure developing device 70 are spaced apart from each other, and the slack removing device 55 and the movable guide 64 are positioned as shown by solid lines in the drawing.
This prevents the microcapsules of the photosensitive recording medium 50 from being damaged or destroyed during the winding operation. The driving roller 57 stops the driving roller 57 when the ridge end portion of the latent image formed on the photosensitive recording medium 50 is located at the pressure roller 71 portion of the pressure developing device 70 .

Further, in synchronization with the winding operation of the photosensitive recording medium 50,
The developer sheet 6 is fed from the cassette 61 by the paper feed roller 62.
0 is taken out, and this color developer sheet 60 is conveyed to a position where its leading end corresponds to the rear end of the photosensitive recording medium 50.

Next, by a drive device (not shown), the pressure roller 71 of the pressure development device 70 is pressed against the photosensitive recording medium 50 while rotating in the direction of the arrow, and the fixed roller 56 clamps and fixes the photosensitive recording medium 50 again. As a result, the photosensitive recording medium 50 is superimposed on the color developer sheet 60 and is sent in the direction of the arrow while being pressurized, and the uncured microcapsules on the photosensitive recording medium 50 are destroyed by the pressure, and the photosensitive recording medium 50 is A color image corresponding to the latent image on the medium 50 is developed onto the color developer sheet 6.
Visualized above 0. At this time, the photosensitive recording medium 50
is clamped and fixed by the fixed roller 56, so when the photosensitive recording medium 50 is moved by the pressure roller 71 of the pressure developing device 70, slack occurs, but the slack removing device follows the movement of the photosensitive recording medium 50. 55 is arrow E
By moving in this direction, the slack of the photosensitive recording medium 50 is absorbed.

Further, when the slack removing device 55 moves in the direction of arrow E, the movable guide 64 is moved to the position shown by the chain line in the drawing, and peels off the leading end of the color developer sheet 60 from the photosensitive recording medium 50, and Guide in the direction of device 80.

The color developer sheet 60 conveyed to this heat fixing device 80 is
It is inserted between a heat roller 82 heated by a heater 81 and a press roller 83, and the heat of this heat roller 82 promotes color development of the color image on the color developer sheet 60.

Further, by heating with the heat roller 82, a binder polymer (binder resin) for fixing the color developing medium to the base paper of the color developer sheet 60 is thermally melted, and the color developer sheet 60 is heated.
The surface of the developer sheet 60 has a smoothness corresponding to the smoothness of the surface of the endless belt 84, so that the surface of the color developer sheet 60 has an appropriate gloss.

The color developer sheet 60 that has been subjected to the color development and gloss treatment is conveyed from the endless belt 84 of the heat fixing device 80 and discharged onto the paper discharge tray 63.

Since the photosensitive recording medium 50 is clamped and fixed by the fixed rollers 56 during the series of development and color gloss processing described above, the tension of the photosensitive recording medium 50 due to the development in the subsequent process is reduced in the process before the exposure stage 52. It is not affected by changes, etc. Therefore, while the development process for one screen is being performed, the latent image of another color image can be exposed on the exposure table 52.

In addition, when it is desired to create a plurality of color images from the same mask original plate 15, the mask original plate 15 that has been waiting in the first storage section 26 is guided to the alignment device 31 again through the gate 23 in the mask original conveying device 21. Then, perform exposure processing for the first sheet.

Subsequently, other mask originals 15 are sequentially guided to the alignment device 31 using the first storage part 26 and the second storage part 27 as soon as the exposure processing of the previous mask original 15 is completed, so that the same mask is A color image can be created using the original plate 15. The mask original plate 15 can be used repeatedly and circulated as many times as necessary by utilizing each storage section 26, 27 of the mask original transport device 21.

After creating the required number of color images from the same mask original 15, the gate 23 is rotated, and each mask original 15 in the mask original transport device 21 is transferred to the mask original discharge tray 3.
Eject to 0.

Further, by inserting a mask original 15 created by other means from the manual feed tray 29 into the mask original transport device 21, exposure processing can be performed with this mask original 15, and at this time, the mask original transport If another mask original 15 already exists in the device 21, the mask original 15 is removed from the manual feed tray 29 by the manual feed gate 24.
It is not possible to insert .

According to this embodiment, the adhesion auxiliary body consisting of the optical fiber array 36 configured by continuously connecting cylindrical optical fibers 36a in the radial direction is disposed between the belts 32, so that the mask original plate] -5 and the photosensitive recording medium 50, the effect of the adhesion auxiliary body allows them to be brought into proper contact with each other.

Moreover, the light that passes through the adhesion auxiliary body made of the optical fiber array 36 is transmitted in the form of almost parallel rays. can be made equal at the center and at the ends. This is true even when the amount of light from the exposure device 41 is not equal between the center and the ends, as shown in FIG. It can be made equal to the part.

Therefore, it is possible to eliminate the phenomenon in which the center of the image is bright and the edges are dark, and it is possible to ensure an amount of exposure light with uniform brightness throughout.

In addition, since all the light that passes through the entire area of the adhesion auxiliary body consisting of the optical fiber array 36 becomes parallel rays, there is almost no light that goes around to the periphery. Even if the image is not perfect and there is a gap between the two, the exposure will be good and so-called image blur will not occur.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, the adhesion auxiliary body disposed inside the belt is constituted by an optical fiber array, so that during exposure, the light that passes through the adhesion auxiliary body becomes almost parallel rays. Since the light is transmitted through the light, it is possible to obtain an amount of exposure light with uniform brightness over the entire area. Also,
The light that passes through the optical fiber array becomes almost parallel light beams, so there is no chance of the light going around to the surrounding areas. Even if a gap occurs, so-called image blurring will not occur.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of an image recording apparatus according to the present invention, FIG. 2 is a plan view showing the alignment device of FIG. 1, and FIG. 3 is a side view of the alignment device and exposure device. FIG. 4 is a perspective view of the alignment device and exposure device. 15... Mask original plate, 20... Color image recording device, 31... Positioning device, 32... Belt, 36...
...Optical fiber array, 36a... Optical fiber, 41
...Exposure device, 50...Photosensitive recording medium, 52...
Exposure stand.

Claims (1)

[Scope of Claims] An image recording apparatus comprising: a translucent belt that supports and conveys a mask original created based on image information; and a belt tension roller that tensions the belt; An image recording device characterized in that a contact auxiliary body made of an optical fiber array is provided in the image recording device.