JPH03180831A - Image recorder - Google Patents

Abstract

PURPOSE:To surely separate a mask negative and to prevent a non-image area from enlarging by disposing a transparent member for pressing the end part of the mask negative against the side where a photosensitive recording medium does not lie while lying between both of them at the time of making the photosensitive recording medium come into tight contact with the mask negative. CONSTITUTION:The photosensitive recording medium 50 is exposed with light from a light source 36 because the pressing member 34 is transparent even though the photosensitive recording medium is covered with the pressing member 34 in exposing. When the mask negative 15 is separated from the photosensitive recording medium 50 after exposing, the end part of the mask negative 15 is pressed by the pressing member 34, so that it can be separated from the photosensitive recording medium 50 without following the photosensitive recording medium 50 side. Thus, the mask negative can be surely separated and the non-image area can be prevented from enlarging.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an image recording device.

[Prior Art] Conventionally, as this type of image recording device, there has been a device as shown in the specification of Patent No. +1r (No. 62-256000 issued by the present applicant and shown in Fig. 1).

This apparatus had an exposure means, a conveyor belt that temporarily held the mask original, and an exposure table that brought the photosensitive recording media J and A into close contact with the mask original. In this apparatus, a mask original is supported on a conveyor belt by electrostatic force, and after carrying it in and positioning it, contact exposure is carried out for one time.

[Elaboration to be Solved by the Invention] However, after contact exposure, at the separation 111f between the mask original plate and the photosensitive recording medium, even though the mask original plate is held by the conveyor belt with 1 electrostatic force, the photosensitive recording medium side Sometimes I would follow them and cause paper jams.

The present invention has been made in order to solve the above-mentioned problems, and aims to reliably separate the mask original and suppress the resulting coarseness of the non-image area to a minimum ratio.

[Means to solve the problem] Konni! In order to achieve the target, the main project 1j1. The image recording device 1 has at least a photosensitive recording medium, and 111f, where the A medium and the mask 11λ plate are concentric with each other, has a photosensitive 1; It has a transparent pressing member that presses toward the non-existent side.

[Function] According to the invention having the above configuration, the photosensitive recording medium is covered by the pressing member during exposure and is also exposed because the pressing member is transparent.

After exposure, when the mask original plate is separated from the photosensitive recording medium, separation is achieved without following the photosensitive recording medium side because the mask original plate is pressed by the pressing portion.

[Example] Hereinafter, a single-cusp example embodying the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view of a monochrome laser printer 1 and a color image recording device 20 in a combined arrangement.

First, a monochrome laser printer 1 is mounted on top of a color image recording device. The polygon scanner 2 in the laser printer 1 produces an electrostatic latent image by irradiating a laser beam onto the photoconductor 3 which has been subjected to;1i)71i.
. The photoreceptor 3 on which the electrostatic grooves have been formed is developed in the developing device 4, and the toner image is transferred onto a feed 81 (plain paper or 0f (P sheet) supplied from the cassette 5, and the toner image is transferred in the fixing device 6. The monochrome laser printer 1 receives data transmitted from the host computer every 3 days.

The output from the laser printer 1 is sent to the paper path switching unit 10 to the monochrome 91 paper tray 11 if a black and white image is required, and to the LJ 1 paper tray if a color image is required.
(After being sent to the tray 12, the color mountain image recording device 20
taken inside.

The distal end side of the paper discharge tray 12 is rotatable between the position shown by the solid line and the position shown by the plumb line in FIG. iS The paper output from the laser printer 1 is taken into the color image recording device 20, and the three sheets of monochrome printed paper output from the laser printer 1 form a set and are masked in the color image recording device 20. Original version 15 (15R, 15G, 15B)
used as.

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

That is, at the top of the main body of the color image recording device 20, a mask original conveying device 21 is located, in which an alignment device 31, a circulation guide 25, and two storage sections 26 and 27 located in parallel are connected in an annular manner. . The alignment device 31 of the mask original transport device 21 and the storage portions 26 and 27 are connected to the paper output tray 12 of the monochrome laser printer 1 via a guide member 22, so that the paper output from the monochrome laser printer 1 is The paper (mask original) is introduced into the mask original transport device 21. Further, a gate 23 is arranged in the mask original conveying device 21 below the guide member 22, and the mask original 15 that has been guided and conveyed by the guide member 22 is moved to the alignment device 31 side by the gate 23. Alternatively, the paper can be distributed to the paper discharge tray 30 side. In addition, a circulation guide 25 and two storage sections 26 and 27 are provided.
A gate 28 is arranged between the gate 2 and the
8, the mask originals 15 that have been drawn out and conveyed by the circulation guide 25 are distributed to either the upper storage section 26 side or the lower storage section 27 side. On the other hand, the manual feed tray 29
The mask original 15 pushed in is guided to the mask original transport device 21 through a gate 28.

Next, we will explain the details together with FIG. 2, which shows the alignment device 31 and its vicinity in detail.

The alignment device 31 is constructed by processing a belt 32 made of a transparent dielectric material 11 (for example, polyethylene terephthalate: PET) into an endless shape and stretching it between two rotating shafts. ing.

At least one of the two shafts is rotationally driven by a motor (not shown), and as the shaft rotates, the belt 32 is driven to circulate in the direction shown by the arrow in FIG. The surface of the belt 32 is stained by a charging device (for example, a corotron), not shown, and is made to attract the mask original 15 by electrostatic adsorption force. A sensor mounting plate 33 that holds a sensor for positioning is provided near the bottom surface of the 11 mm end of the mask original 15, and reads the position mark printed at the position of the mask original 15. 15 is set in a predetermined position.On the lower surface of the right end of the belt 32, there is a holding plate 34 made of transparent resin, and a holding plate 34 is placed at a distance from there to guide light to the side of the holding plate 34. The optical fiber 35, a light source 36, and a reflector 37 are provided.

An exposure device 41 is arranged above the alignment device 31, and this exposure device 41 is connected to the alignment device '31.
It can be moved left and right along the

The exposure device 41 includes a linear whitening light source (hereinafter simply referred to as a lamp) 42 and a reflection plate 43 that reflects light from the lamp 42.
and arranged to surround the lamp 42 and the reflector 43,
The color separation filter 44 includes a red filter 44R, a green filter 44G, and a blue filter 44B.

The photosensitive recording medium 50 is, for example, disclosed in Japanese Patent Application Laid-Open No. 62-14304.
The main material is a photocurable resin using a photopolymerization initiator known from Publication No. 4, and includes a photocurable resin that is visible to light of each wavelength of red, green, and blue, and cyan and magenta. , yellow microcapsules encapsulating each of the dyed Z bodies were coated on a sheet of 2!44. The photosensitive recording medium 50 is a cartridge 51
It is stored inside to prevent exposure to light. Cartridge 5
The photosensitive recording medium 50 pulled out from 1 passes between the belt 32 and the exposure table 52, passes through a fixed roller 56, a slack remover 55, a movable guide 64, a pressure developing device 70, and a drive roller 57, and then is wound up. It is collected by the roller 54.

The light beam 52 is exposed by the exposure device 41.
ni, upper evening I by cam 53.

As a result, the mask original 15 that has been fed by the belt 32 and the photosensitive recording medium 50 are brought into close contact with each other. Further, the front 1 batch 1i'il fixed roller 56 is connected to the pressure developing device 7.
While the development process is being carried out at 0, the exposed photosensitive record j,
The A medium 50 is fixed to the clamp I'jf. Historically, the slack removing device 55 prevents the photosensitive recording medium 50 from sagging while the developing process is performed by the pressure development device 70, and the drive roller 57 moves the photosensitive recording medium 50 at a constant speed. It can be sent by

The developer sheet 60 is constructed by coating a base paper with a developer described in, for example, Japanese Patent Laid-Open No. 58-88739, and is placed in the cassette 61 so that the developer-applied surface faces downward. It is set.

The color developer sheet 60 is driven by a drive δf (not shown).
The paper sheets are taken out one by one from the cassette 61 by the paper feed roller 62 which is intermittently driven by the paper feed roller 62 and fed to the pressure developing device 70 at 11%. Then, the color developer sheet 60 is pressed by a pair of pressure rollers 71 of the photosensitive recording medium 50 in a state in which it is overlapped with the exposed photosensitive recording medium 50, so that the color developer sheet 60 is pressed onto the photosensitive recording medium 50 by exposure. The latent image formed on the color developer sheet 60 is made imageable.

The heat fixing device 80 includes a heat roller 82 having a built-in heater 81.
, auxiliary roller 85, its heat roller 82 and auxiliary roller 85
It is composed of an endless belt 84 installed between them and a presser roller 83 that is pressed against a heat roller 82 via the endless belt 84, and is guided and conveyed by an r+J moving guide 64 from the pressure developing device 70. After the agent sheet 60 is polished by the heat fixing device 80, it is placed on the paper discharge tray 63 with υ1. Served.

The operation of the device configured as described above will be explained next.

First, the monochrome laser printer 1 prints red J'll.
(7) A mask original plate 15R is created. This mask original plate 15R is coated with toner, which is a light-shielding image, in other parts in order to image the microcapsules containing the cyan dye precursor in the microcapsules coated on the photosensitive recording media 5o. This is the original version of the mask.

At this time, the output tray 1 (tray 12) of the monochrome laser printer 1 is in the position shown by the solid line, and the mask original 15R
is guided into the mask original conveying device 21 of the color image recording apparatus 20 guided by a guide member 22 .

This 091 alignment device 31 is equipped with a mask original plate 15.
Is there no, before? C! If it is confirmed by the sensor of the 1-vertical alignment device 31, the mask is transported to the 1-kyo version 15R or tonne alignment device 31 through the gate 23.

Next, the alignment device 31 adsorbs the mask original 15R to the belt 32 by electrostatic adsorption force and conveys it to the appropriate exposure position (FIG. 2-a), and then marks the alignment mark printed on the mask original 15R. While the sensor on the sensor mounting plate 33 reads the position, the position is adjusted to an accurate position by a drive source (not shown).

Next, the fixed roller 56 holds down the photosensitive recording medium 50,
A drive source (not shown) rotates the cam 53 by a predetermined angle and pushes the exposure table 52 upward, so that the photosensitive recording medium 50 sandwiches the mask original 15R and comes into close contact with the belt 32 of the alignment device 31 ( 202 Figure-b).

At the same time, the presser plate 34 is also rotated by a drive source (not shown).
The tip of the mask original plate 15R is pressed by the tip.

When the exposure table 52 comes into close contact with the alignment device 31, the lamp 4
2 lights up, and the exposure device 41 performs scanning exposure in the direction of the arrow in order to expose the photosensitive recording medium 50 with red light through the mask original 15R through the red filter 44R. During this time, the light source 36 lights up, and its light beam
The light is emitted to one end of the optical fiber 35, guided to the holding plate 34, and auxiliary exposed to the photosensitive recording medium 50 corresponding to the end of the mask original 15R. When the exposure is completed, the lamp 42 is turned off and the exposure device 41 moves back in the direction of arrow B. At the same time, the light source 36 is also turned off. In this (5), the filter cylinder 44 of the exposure device 41 is rotated by a drive source (not shown),
A green filter 44G is located directly below the lamp 42.

Here, in addition to the alignment mark, the mask original plate 15 is printed with color-specific marks indicating what color the mask original plate is a color separation mask original plate. 7 is read by the sensor.

Furthermore, the filter cylinder 44 is equipped with a sensor that detects the origin of each of the three types of filters 441, 44G, and 44B, and if the read color mark does not correspond to each of the filters 44R144G and 44B of the exposure device 41, The filter cylinder 44 rotates to correspond to each predetermined filter 44R, 44G, and 44B. While the exposure device 41 moves backward, the exposure table 52 is lowered by the rotation of the cam 53, and the photosensitive recording medium 50 is separated from the alignment device 31 and the mask original 15R (second
Figure-C). Since this zero presser plate 34 is still holding down the tip of the mask original 15H, the mask original 15R remains firmly attached to the belt 32. The presser plate 34 is moved slightly back from the exposure table 52 and lowered.

During this time, pack tension is applied to the photosensitive recording medium 50 at the center of roll rotation of the photosensitive recording medium 50 in the cartridge 51, and when the exposure table 52 rises, the length corresponding to the amount of rise of the exposure table 52 increases. Storage cartridge 51
drawn out from within. Also, when the exposure is finished, the exposure table 52
fell lI! At i, the photosensitive recording medium 50 is rewound in a direction to take up the slack.

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 mask original 15R is moved to the exposure ring guide section 25.
After passing through, the user is guided to the storage section 26 by a gate 28.

Next, after the green mask original 15G created by the monochrome laser printer 1 passes through the guide member 22,
The gate 23 guides the alignment device 31 .

Then, as in the case of the mask original plate 15R, after alignment is performed with respect to the photosensitive recording medium 50, the exposure table 52 is raised, and the photosensitive recording medium 5o and the mask original plate 15G are aligned with the belt 32 of the alignment device 31. The holding plate 34 holds down the tip of the mask original 15G. Thereafter, the lamp 42 is turned on, and exposure to green light is performed through the green filter 44G. After the exposure is completed, the exposure table 52 is lowered and
, the presser plate 34 is also lowered a little further, and the mask original 15G is guided upward through the ring-sticking guide section 25 and then passes through the gate 28.
rotates and the mask original 15G is guided to the storage section 27. As the exposure device 41 moves back to its original position, the filter cylinder 44 rotates, and the front filter 44B is positioned directly below the lamp.

Similarly, the blue mask original plate 15B created by the monochrome laser printer is transferred to the mask original conveying device 2.
1 and aligned to a predetermined position by an alignment device 31. Thereafter, the exposure device 41 exposes the photosensitive recording medium 50 to blue light.

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

Next, as the exposure table 52 is lowered, the fixed roller 56 is separated and the drive roller 57 is rotated, so that the photosensitive recording medium 50
Wind it up in the direction of arrow C. At this time, the photosensitive recording medium 5
The buffer 55 and the movable guide member 64 for taking up the slack are located at the positions shown by solid lines. In addition, the pressure developing device 7
The pressure rollers 71 of No. 0 are spaced apart from each other. Therefore, during the winding operation, the microcapsules of the photosensitive recording medium 50 are not damaged or destroyed. The drive roller 57 stops when the rear end portion of the latent image on the photosensitive recording medium 50 reaches the pressure roller 71 of the pressure effect device 70 .

In synchronization with the movement of the photosensitive recording media 50, the color developer gate 60 is fed out from the cassette 61 by the paper feed roller 62, and the tip of the color developer gate corresponds to the rear end of the photosensitive recording medium 50. Stop at a position.

Next, the pressure phenomenon device 7 is driven by the drive device not shown in FIG.
When the pressure roller 71 of No. 0 is pressed against the photosensitive recording medium 50 while rotating in the direction of the arrow, the fixed roller 56 is pressed against the photosensitive recording medium 50 again.
Clamp and fix. 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 recording medium 50 is developed on the developer sheet 50.

As the pressure roller 71 of the pressure developing device 70 rotates in the direction of the arrow, the slack removing device 55 moves in the direction of the arrow E and absorbs the slack of the photosensitive recording medium 50. When the slack removing device 55 moves in the direction of the arrow E, the movable guide 64 moves to the position shown by the chain line by a mechanism not shown, and removes the tip of the color developer sheet 60 from the photosensitive recording medium 50.
At the same time, it is guided in the direction of the heat fixing device 80.

In the heat fixing device 80, the color developer sheet 60 receives thermal energy from the heater 81 via the rotating heat roller 82 and the endless belt 84, thereby promoting color development of the color image. At the same time, the color developer sheet 60
The binder polymer (adhesive resin) for fixing to the base paper of the endless belt is thermally melted and has a smoothness corresponding to the surface smoothness of the endless belt, so that the surface of the color developer sheet 60 has a moderate gloss and a blue color. Ru.

A color developer for color development and gloss treatment! -60 is separated from the endless belt 84 at a rate of 1111 and is discharged to the υl1 paper tray 63.

Since the photosensitive recording medium 50 is clamped and fixed by the fixed rollers 56 during the above-described series of development and coloring/glossy processing, changes in the tension of the capsule sheet 50 due to the development in the subsequent process, etc. in the process before the exposure table 52 are affected. Not affected by Therefore, while developing one screen,
On the exposure table 52, exposure processing of a latent image of another color image can be performed.

Incidentally, if it is desired to obtain the current color image from the same mask original 15, the mask original 15R that has been waiting in the storage section 26 is guided to the alignment device 31 again through the gate 23 in the mask original conveying device 21. , the second step [same as the exposure process for one sheet] is performed. Original mask 15G, 15B
Also, as soon as the previous mask original 15 has been exposed, it is guided to the alignment device 31 one after another using the storage units 26 and 27. The mask original transport device 2] can thus repeatedly circulate the mask original 15 by the required number of stitches.

After obtaining the required number of color images from the same mask original 15, the gate 23 rotates and guides each mask original 15 in the mask original transport device 21 to the 91 paper tray 30.

Furthermore, in the event that the next combination of mask originals 15 enters from the monochrome laser printer 1 while a series of color images is exposed, the gate 23 transfers these mask originals to the output tray 30. I will guide you to.

Further, the mask original conveying device 21 is equipped with a manual feed tray 29 for manually taking in the mask original 15 created by other means as described above. However, if there is already another mask original in the mask original transport device 21, a manual feed gate 24 is provided to prevent manual feeding.

The present invention is not limited to the embodiments detailed above, and various changes can be made without departing from the spirit thereof.

For example, in this embodiment, light is guided from the light source 36 to the holding plate 34, but it may be guided from the exposure lamp 42.

Alternatively, if the light and shade contrast of the photosensitive recording medium 50 is sufficient, the transparency of the presser plate 34 allows the light to
, the reflector 37 and the optical fiber 35 may be omitted.

Furthermore, if the structure is such that the sensor mounting plate 33 cannot sufficiently press the mask original 15, it is preferable to arrange a pressing plate on this side as well.

[Effects of the Invention] As is clear from the detailed description above, according to the present invention, the mask original plate does not follow the photosensitive recording medium side during separation after exposure, and is separated reliably, and is still free from il! ! The rear edge area of the image area can also be exposed to white without causing any distortion, making it visually beautiful! ! i image is obtained.

[Brief explanation of drawings]

1 to 2 show embodiments embodying the present invention; FIG. 1 is a schematic cross-sectional view of the image recording device, and FIG. 2 is a cross-sectional view of the vicinity of the vertical alignment device. It is. In the figure, 34 is a holding plate, and 35 is an optical fiber.

Claims (1)

[Scope of Claims] 1. An image recording apparatus that exposes a photosensitive recording medium to light using a mask original created based on image information and obtains an image on an image recording sheet, at least the photosensitive recording medium and the mask original. An image recording device comprising: a transparent pressing member that is located between the photosensitive recording medium and the mask original plate and presses the end of the mask original plate toward the side where there is no photosensitive recording medium when the photosensitive recording medium and the mask original plate are in close contact with each other. 2. The image recording apparatus according to claim 1, further comprising a light guide path for guiding light to the pressing member.