JPH02100032A - Image recorder - Google Patents

Abstract

PURPOSE:To appropriately convey a mask negative with the aid of a belt which carries and conveys the mask negative by disposing a static eliminating means for eliminating static electricity with which the mask negative is electrostatically charged near the induction side of the belt. CONSTITUTION:The static eliminating means 34 for eliminating the static electricity with which the mask negative 15 is electrostatically charged is disposed by being opposed to at least one surface of the mask negative 15 on the induction side where the mask negative 15 is inducted to the belt 32. Thus, the mask negative 15 which is charged with the static electricity can be surely prevented from being attracted to a chute 39, etc., and the mask negative 15 is kept from being stopped at the chute 39 part, thereby appropriately conveying the mask negative 15 with the belt 32.

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, there is a positioning device which is made of an endless PET (polyethylene terephthalate) sheet and has a belt on the bottom side that electrostatically attracts and conveys a mask original conveyed from a monochrome laser printer. A charging brush is provided near the belt to charge the belt with static electricity. Furthermore, a registration roller is in contact with the lower surface of the upstream side of the alignment device, and a chute for guiding the mask original plate between the belt and the registration roller is provided on the upstream side of the belt and the registration roller. It is arranged. Further, above the alignment device, an exposure device having red, green, and blue filters is arranged so as to be able to scan freely along the belt.

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

In the color image recording apparatus, the mask original carried in from the monochrome laser printer is inserted between the belt and the registration roller through the chute, and the lower surface of the belt charged by the charging brush is Let it be adsorbed to. Then, the photosensitive recording medium is brought into close contact with a belt of a positioning device while sandwiching the mask original, and in this state, the image of the mask original is transferred to the photosensitive recording medium by scanning with the exposure device.

Then, 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 visualize the latent image. A color image is formed on the color developer sheet.

[Problem to be solved by the invention]

However, in the image recording apparatus, when the mask original plate has low insulation resistance, when the mask original plate is conveyed to the belt portion of the alignment device, static electricity charged on the belt is discharged to the mask original plate. This may cause the mask master to become charged. Therefore, due to this static electricity, the mask original plate sticks to the chute etc. during transportation, and the mask original plate stops at the chute portion etc., making it impossible to properly convey the mask original plate to the belt portion. have. There has been no means for removing static electricity charged on such a mask original.

The present invention has been made in view of the above-mentioned points, and provides an image recording device that can reliably prevent the mask original from being charged with static electricity and can appropriately convey the mask original to a belt portion. The aim is to

[Means to solve the problem]

In order to achieve the above object, an image recording device according to the present invention includes:
In an image recording apparatus that has a belt that carries and conveys a mask original created based on image information and that exposes a photosensitive recording medium through the mask original to obtain an image, the mask original is introduced into the belt. A static eliminating means for removing static electricity charged on the mask original is disposed on the introduction side of the mask original so as to face at least one side of the mask original.

[Effect]

According to the present invention, on the introduction side where the mask original plate is introduced into the belt, the static eliminating means for removing static electricity charged on the mask original plate is disposed so as to face at least one side of the mask original plate. It is possible to reliably prevent the original from being charged with static electricity and adhering to the chute, etc., and the mask original will not stop at the chute, allowing the belt to properly convey the mask original. It is something.

〔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 photoconductor 3, and is arranged in a paper path of the photoconductor 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 bus 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 ejected to the monochrome paper output tray 11 by the paper path switching device 10 if a black and white image is required, and if a color image is required, the paper is ejected to the monochrome paper output tray 11 by the paper path 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 (1, 5R, 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.

The alignment device 31 also includes an endless belt 32 and two rotating rollers 37 and 3 that stretch the belt 32.
7. The belt 32 is made of a transparent dielectric material of 75 to 75, which has excellent strength, heat resistance, and dimensional stability.
One surface of the belt body made of PET (polyethylene terephthalate) film with a thickness of 100μ is coated with 1 to 1 portion of ultraviolet curing resin such as acrylic or silicone.
It is formed by applying a coating with a thickness of 0 μm to give a pencil hardness of H to 4H on the surface and processing it into an endless shape with the coated surface facing outside.

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.

Further, at least one of the rotating rollers 37 has a
A drive motor (not shown) is connected, and the rotation of the drive motor allows the belt 32 to be driven in circulation in the direction indicated by the arrow in the drawing. Further, as shown in FIG. 2, a registration roller 38 is in contact with the lower surface side of the rotation roller 37 on the upstream side, and the mask original 15 is placed on the upstream side of the rotation roller 37 and the registration roller 38. A chute 39 for guiding is provided between the rotating roller 37 and the registration roller 38. Further, the alignment device 31 is movable in a horizontal plane by a drive device (not shown), thereby making it possible to perform extremely accurate alignment.

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 charging brush 40 charges the belt 32, The mask original 15 is attracted to the lower surface of the belt 32 by electrostatic attraction.

Further, on the upstream side of the chute 39, a grounded static eliminator 3 for removing static electricity from the mask original 15 is provided.
4 is disposed, and the mask original 15 is properly attracted to the belt 32 charged by the charging brush 40 by the static eliminating member 34.

As shown in FIG. 3, the static eliminator +434 constituting the static eliminator is, for example, made of resin mixed with carbon powder, ultrafine metal fibers, etc., and has a long length attached to the lower end of a grounded metal base 34a. Brush 34b with a size of about 4 to 51
The brush 34b is arranged so as to be in contact with the surface of the mask original 14. In addition, as another example of this static eliminating member, as shown in FIG.
The brush 34b of the static eliminating member 34 having the structure shown in FIG. 3 may be spaced apart from the surface of the mask original 14 by, for example, about three or less distances. Furthermore, FIG. 5 shows another embodiment of the static eliminating member, in which a metal static eliminating member 35 is formed into a thin plate shape with a thickness of approximately 0.1 mm, and the lower end surface of this static eliminating member 35 is The charge eliminating member 35 is formed into a saw blade shape, and the peak portion of the saw blade portion is arranged at a distance of about 1 to 21 points from the surface of the mask original 15. Further, FIG. 6 shows still another embodiment of the static eliminator 36, in which the static eliminator 36 is provided with a shield 36a having a U-shaped cross section, and a tungsten wire of about 50 μm is installed inside the shield 36a. 36b is housed parallel to the surface of the shield 36a, and the shield 36a is placed so that its opening faces the mask original 15.
In addition, the opening side edge of the shield 36a is spaced apart from the surface of the mask original 15 by 2 to 4 mm. Then, AC6kV is applied to the wire 36b.
By applying a high voltage of about
This is to generate a discharge inside a to remove static electricity from the mask original plate 15.

The lower surface of the belt 32 and the registration roller 38
The rotating roller 37 and the registration roller 38 are located near the
A sensor tie bar 33 is disposed to guide the mask original plate 15 sent between the belts 32 to the lower surface side of the belt 32, and a sensor tie bar 33 is provided with a position printed at a predetermined position on the mask original plate 15. An alignment sensor 33a is provided to read the alignment mark and set the mask original 15 at a predetermined position.

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. 143044/1984, and the photocurable resin cures when exposed to light of each wavelength of red, green, and blue, as well as cyan, magenta, Microcapsules containing yellow dye precursors are coated onto a base sheet.

Further, below the exposure table 52, a pair of pressure rollers 7 are provided.
A pressure developing device 70 having a built-in image forming apparatus 1 is disposed between the exposure table 52 and the pressure developing device 70.
a fixed roller 56 that clamps and fixes 0, the pressure developing device 7
A slack remover 55 and a movable guide 64 that prevent the photosensitive recording medium 50 from sagging when developing processing is performed at 0.
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 80 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 80, there is a paper discharge tray 63 for discharging the color developer sheet 60 conveyed from the pressure developing device 70 to the heat fixed tube 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 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 path switching device 1°. Original mask 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.

Then, when it is confirmed by the sensor 33a of the alignment device 31 that no other mask original 15 exists in the alignment device 31, the gate 23
5R is transported to the alignment device 31.

Further, when another mask original 15 is being transported to the alignment device 31 and subjected to exposure processing, this mask original 15R is transferred to the mask original discharge tray 3 by the gate 23.
You will be guided to 0.

Next, the belt 32 of the alignment device 31 is connected to the charging brush 40.
At the same time as charging with static eliminating member 34,35,
The mask original plate 15R is transported while removing the static electricity charged on the mask original plate 15R, and the mask original plate 1
5R is guided by the sensor tie bar 33 and attracted to the lower surface of the belt 32 by electrostatic attraction. After conveying the mask original 15R to a predetermined exposure position by driving the belt 32, the sensor 33H reads the alignment mark printed on the mask original 15R, and the alignment device 31
is driven to move the mask original 15R to an accurate position. In addition to alignment marks, the mask original plate 15 also includes alignment marks.
Color-coded marks indicating what color the mask original plate 15 is are printed thereon, and these color-coded marks are read by the sensor 33a at the same time as the alignment.

Furthermore, the color separation filter 44 includes each filter 44R,
A sensor is installed to detect 44G and 44B.
The read color marks and each filter 44 of the exposure device 41
If R, 44G, and 44B do not correspond, switch the color separation filter 44, and in this case, use the red filter 44.
R is located 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
While lighting the lamp 42, the exposure device 41 is scanned in the direction of arrow A in the figure. 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
The cartridge 51 is pulled out by a length corresponding to one stroke of the rising amount of the photosensitive recording medium 50, and when the exposure table 52 is lowered after exposure, the photosensitive recording medium 50 is rewound to remove slack. ing.

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 rear 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 color developer channel 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 6o 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 table 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 .

Therefore, in this embodiment, the alignment device 3
Since the static eliminating member 34 is disposed upstream of the mask original plate 15 to remove static electricity charged on the mask original plate 15, it is possible to prevent the mask original plate 15 from adhering to the chute 39 etc. Mask original plate 15 properly by 26
can be transported.

In addition, by coating the surface of the belt 32 of the alignment device 31 with a curable resin, the pencil hardness of the surface can be reduced to H~
Since it is formed in 4H, it is possible to reliably prevent the surface of the belt 32 from being scratched by the charging brush 40 or the like, and the light transmittance during exposure will not be reduced. In addition, the resin does not damage the surface of the belt 32 and improves the insulation of the surface of the belt 32, which improves the charging property and allows the mask original 15 to be reliably attracted. The original plate 15 can be transported reliably. Furthermore, since the sensor tie bar 33 is arranged on the upstream side of the belt 32, the mask original 15 can be reliably guided to the sensor tie bar 33 portion, and alignment marks etc. can be properly detected by the sensor 33a. be able to.

〔Effect of the invention〕

As described above, in the image recording apparatus according to the present invention, the static eliminating means for removing static electricity charged on the mask original is disposed near the introduction side of the belt that carries and conveys the mask original. It is possible to reliably prevent the original plate from being charged with static electricity and adhering to the chute, etc.
The mask original plate does not stop at the chute portion, and the mask original plate can be properly conveyed by the belt.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a schematic vertical sectional view showing an embodiment of the image recording device according to the present invention, FIG. 2 is an enlarged view of the positioning device portion of FIG. 1, and FIGS. Figure 6 shows an example of the static eliminating member. Figure 3 (a) is a side view, Figure 3 (b) is a perspective view, Figure 4 (a) is a side view, and Figure 4 (b) is a side view. ) is a perspective view,
5(a) is a side view, FIG. 5(b) is a perspective view, FIG. 6(a) is a side view, and FIG. 6(b) is a perspective view. DESCRIPTION OF SYMBOLS 1... Monochrome laser printer, 15... Mask original plate, 20... Color image recording device, 31... Positioning device, 32... Belt, 32a... Base, 34...
... Static neutralizing member, 34b... Brush, 36a... Shield, 36b... Wire, 37... Rotating roller, 3
8... Registration roller, 39... Shoot, 40.
... Charging brush, 41... Exposure device, 50... Photosensitive recording medium, 52... Exposure table, 60... Color developer sheet, 70... Pressure developing device, 80... Heat fixing Device. I 2 Figure 3 Figure 14 Figure

Claims (1)

[Scope of Claims] An image recording apparatus that has a belt that carries and conveys a mask original created based on image information, and that exposes a photosensitive recording medium through the mask original to obtain an image, comprising: An image recording apparatus characterized in that a static eliminating means for removing static electricity charged on the mask original is disposed on an introduction side where the mask original is introduced into the belt so as to face at least one side of the mask original.