JPH02242247A - Copying device - Google Patents

Abstract

PURPOSE:To facilitate the alteration of the enlargement magnification of a projection optical system and the switching of an image-forming optical system and the projection optical system by providing a mirror for changing the length of the optical path of the projection optical system and a switching mirror which can be used for both optical systems. CONSTITUTION:In the case of copying a reflecting original 78, the direction of the reflected light from the original 78 on an original platen 80 is changed. Then, the light is reflected by the mirrors 88 and 90, passed through an image- formation lens 92 and is reflected by the mirror 94 and the switching reflection mirror 96 to expose the photosensitive material 34 of an exposure part 46. In the case of copying the transmissible original 108 such as slide, etc., the mirrors 126 and 96 are interlocked to be moved to a left side accompanied with the movement of a projection lens 124 corresponding to the magnification and the projected light transmitted through the original 108 is allowed to expose a photosensitive material 36 on an exposed position 46a through the above- mentioned optical systems.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a copying device using a photosensitive material, and more particularly to a copying device capable of obtaining a copied image from a transparent original as well as from a reflective original.

<Prior Art> A copying device using a photosensitive material copies an image of an original onto a photosensitive material, and has the advantage of being able to copy images at a high cost compared to an electrophotographic copying device. Examples of such photosensitive materials include silver salt photographic materials, photosensitive pressure sensitive materials, photosensitive resin materials, heat sensitive photosensitive materials, and diazo photosensitive materials.

Generally, in a copying machine using such photosensitive materials, the photosensitive material is fed from the magazine of the photosensitive material supply unit to the exposure position, and after exposing the original image, it is sent to the processing unit where it is developed and then copied. You are getting an image (copy).

In general, copying machines that directly expose image information onto a photosensitive material use a one-shot exposure method that simultaneously exposes the entire image information of the original, or a one-shot exposure method that exposes the image information of the original at a constant speed, or The one-shot exposure method described above has the advantage that the structure itself is simple and only requires one exposure, but the optical system itself must occupy a large space.
The entire device is large and requires a large space for installation, and in order to obtain clear images, a powerful and expensive light source that can illuminate a wide area with a uniform amount of light is required. For these reasons, a scanning exposure method is often adopted.

On the other hand, in a scanning exposure type copying apparatus, generally, direct exposure is performed on a photosensitive material that moves six times in synchronization with eight scans of an original image having a constant slit width by moving a document or a light source at a constant speed.

By the way, normally, the originals that are targeted by such scanning exposure type copying devices are mainly reflective originals such as printed originals and photographs, and even if it is possible to copy transparent originals, the copying speed is lower than that of reflective originals. Not only is the operation extremely troublesome, but the copying magnification of the original image is 50% to 200%.
%, making it difficult to obtain high-magnification copies of images from small transparent originals such as slides and negative films, and the image quality was often poor.

For this reason, the present applicant proposed in Japanese Patent Application No. 63-190154 that it is possible to simply replace the document cover (platen cover) and a transparent document projection device that forms a transparent document image onto a document table for reflective documents. , it is possible to easily switch between copying both reflective and transparent originals, and high-magnification copying of transparent originals is possible using both the projection system and the variable magnification mechanism of the copying imaging optical system, resulting in high-quality copied images. We have proposed a copying device that can create

Further, a copying image forming apparatus capable of high-magnification copying of transparent originals is disclosed in Japanese Patent Laid-Open No. 62-262036. This device has a conventional mirror scanning optical system for reflective originals and a high-magnification projection optical system for small transparent originals, and a half mirror or a reflective mirror that can be freely inserted and retracted is installed in the optical path of the mirror scanning optical system. The optical path of the high-magnification projection optical system is interrupted by the exposure of the light-sensitive material to the light image of the small-sized transparent original by the high-magnification projection system.

<Problems to be Solved by the Invention> By the way, the copying image forming apparatus disclosed in Japanese Patent Application Laid-Open No. 62-262036 has a conventional mirror scanning optical system for reflective originals and a high magnification projection optical system for transparent originals. Because of this,
Even for small transparent originals such as negative film and reversal film (slides), there is no need to use a dedicated enlarging device, and high-magnification projection optical systems can be used to produce high-magnification copies of multiple images. However, the optical path length of the projection optical system cannot be changed, and even at high magnification, it is only possible to obtain a copy image at a constant magnification. That is, a normal imaging lens cannot change the magnification of the projection optical system.

Furthermore, in order to provide the projection optical system with a variable magnification function in this apparatus, the imaging lens of the projection optical system must be a zoom lens, which increases the cost.

The copying apparatus proposed in Japanese Patent Application No. 1983-190154 filed by the present applicant is capable of high-magnification copying of transparent originals by simply attaching a transparent original projection device to the main body of the copying apparatus for reflective originals.

In particular, this device forms a high-magnification projected image of the transparent original on the surface of the document table of the reflective document, so it is also possible to use the variable magnification function of the copying device itself. The formed high magnification projection image can be further enlarged.

However, when performing high-magnification copying of a transparent original, it is necessary to place the transparent original projecting device on the original table.

An object of the present invention is to solve the above-mentioned problems of the prior art, and to have an imaging optical system for reflective original scanning exposure and a high-magnification projection optical system for transparent original scanning exposure, and to provide an optical path length of the projection optical system. By changing the magnification of the high magnification projection optical system, the imaging optical system and the projection optical system can be freely switched. , easily change the magnification or reduction magnification,
An object of the present invention is to provide a copying apparatus that can obtain a copy image.

Means for Solving the Problems> In order to achieve the above object, the present invention provides an imaging optical system that scans and exposes an image of a reflective original onto a photosensitive material, and a high magnification optical system that scans and exposes an image of a transparent original onto a photosensitive material. A copying apparatus comprising an exposure section unit including a projection optical system, a photosensitive material co-feeding section unit that supplies the photosensitive material to an exposure position, and a processing section unit that develops the exposed photosensitive material, the copying apparatus comprising: a movable mirror for changing the optical path length of the projection optical system; There is provided a copying apparatus characterized in that a mirror is provided which separates from the transparent original and focuses the transmitted light from the transparent original onto the exposure position.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A copying apparatus according to the present invention will be described in detail below based on preferred embodiments shown in the accompanying drawings.

FIG. 1 is a schematic cross-sectional view of a silver halide photographic color copying apparatus which is an example of the configuration of a copying apparatus according to the present invention capable of copying a transparent original and a reflective original.

As shown in the figure, the copying apparatus 1° of the present invention includes a reflective original exposure system 12 having an imaging optical system 82 that scans and exposes an image of a reflective original onto a photosensitive material, and a reflective original exposure system 12 that scans and exposes an image of a transparent original onto a photosensitive material. A transparent original exposure system 1 having a projection optical system 110 that
4, an exposure section unit 18 is provided above, a photosensitive material supply section unit 16 is provided at the lower right of the exposure section unit 18, and a processing section unit 20 is provided at the lower left thereof. moreover,
The processing section unit 20 has a processing section 22 on the upper right side, a drying section 24 on the upper left side thereof, and a reserve liquid storage section 26 below which stores a supply bottle for replenishing a spare processing liquid.

The photosensitive material supply section unit 16 has a photosensitive material conveyance path within the photosensitive material supply section frame 28, and a pair of magazines 30.32 are removably attached to the upper and lower sides, and photosensitive materials 34.36 are stored inside these magazines. The magazines 30 and 32 are each housed in a roll and taken out from the tip to the photosensitive material supply unit 16, and an opening/closing opening i38 is provided on the outside of the magazine 30, 32. As an example of a photosensitive material, 34 is a photosensitive material that is most suitable for copying a color print original that is a reflective original, and 36 is a photosensitive material that is optimal for copying a color photo original or a color slide original that is a transparent original, or a color negative that is a transparent original. It is a photosensitive material that is ideal for copying film originals.

Corresponding to the slit at the outlet of the photosensitive material 34 of the magazine 30, the conveying rollers 42a and 42b are horizontally passed over to the photosensitive material supply section frame 28.

A cutter 44 is arranged on the opposite side of the conveyor rollers 42a and 42b from the magazine 30.
There are photosensitive material transport guides 48a, 4 between the
8b and 48c are arranged to guide the cut photosensitive material 34 to the exposure section 46. A conveyance roller 50.degree. 50 is disposed between the conveyance guides 48a and 48b, and is configured to send the photosensitive material 34 sent from the cutter 44 upward through the conveyance guides 48a and 48b.

Roughly above the transport guides 48b and 48c, transport rollers 52, 52 are arranged for the same purpose.

The upper part of the conveyance guide 48c has a substantially U-shape that opens downward, and guides the photosensitive material 34 downward to the exposure section 46.

The exposure section 46 is a part that defines an exposure position 46a of the photosensitive material 34, and a glass plate 54 is fixed in the exposure section 46 facing the imaging optical system 82 of the exposure section unit 18. A pressing plate 56 is crimped. The photosensitive material 34 sent from the conveyance guide 48c is transferred to this glass plate 5.
4 and a pressing plate 56 with its emulsion surface facing the glass plate 54.

A pair of conveyance rollers 58 are provided upstream (upper side) of the exposure section 46.
a, 58b, and a pair of conveyance rollers 6 on the downstream side (lower side).
0a and Sob are provided, each of which sends out the photosensitive material 34 (3B) vertically downward. Here, the conveyance rollers 58a and 60a are drive rollers,
The transport roller 58 is synchronously driven by a motor (not shown).
b, 60b are driven rollers.

A conveyance guide 62 is arranged vertically below the exposure section 46 to guide the exposed photosensitive material 34 downward.

A switching guide 64 is provided at the vertical intermediate portion of the conveyance guide 62, and the photosensitive material 34 fed vertically downward within the conveyance guide 62 is transferred to a branch conveyance guide 66 that communicates with the processing section 22 of the processing section unit 20 when necessary. It is now possible to change direction.

On the other hand, conveyance rollers 68a and 68b are horizontally hooked to the magazine 32 disposed below the magazine 3o, corresponding to the exit slits for the photosensitive material 36, so as to feed the photosensitive material 36 to the cutter 70. It has become. Conveyance guides 72a and 72b are arranged between the cutter 70 and the intermediate portion of the conveyance guide 48a.

A transport roller 74 is provided between the transport guides 72a and 72b.
．． 74 is arranged to pass the photosensitive material 36 sent from the transport rollers 68a and 68b to the transport guide 48a.

By the way, when the opening/closing lid 38 is opened when replacing, jamming, or maintaining the magazines 30, 32, the transport rollers 42a,
When 88a separates from the transport rollers 42b and 68b, opens the photosensitive material 34 and 36, and closes the opening/closing lid 38, the transport rollers 42a and 42b, 68a and 68b
are configured to contact and press the photosensitive material 34, 36, respectively.

Further, the conveying speed of conveying rollers 58a and 60a on both sides of the exposure section 46 is synchronized with the scanning speed of the document by a light source unit, which will be described later.

In order to accurately synchronize with this scanning speed, the transport roller 50
, 52.74 is set a little faster than the above-mentioned scanning speed, and a rotating guide 76 biased by a solenoid, a spring, etc. is installed upstream of the exposure section 46 so as to loop along the transport trajectory of the photosensitive material 34.36. part can be formed.

Next, the exposure section unit 18, which is a characteristic part of the copying apparatus of the present invention, will be explained. The exposure unit 18 includes a reflective original exposure system 12 and a transparent original exposure system 14.

The reflective original exposure system 12 includes an original platen 80 made of a transparent glass plate or the like on which the reflective original 78 is placed with its back side;
A document presser 81 that holds down the reflective original 78 on the original platen 80 and blocks light from the original platen 80 on which the reflected original 78 is not placed, and a slit scanning exposure of the image on the original platen 80 onto the photosensitive material 34 (36) of the exposure section 46. an image forming optical system 82 for adjusting the image; an image sensor 100 used for image adjustment;
ll and a shutter 102 for switching the optical path between the two. Here, the imaging optical system 82 has a light source unit having a light source 84 and a reflection mirror 86 that integrally scans the lower surface of the document table 80, and operates eight times in the same direction at 1/2 the speed of this light source unit. A mirror 88.90 that reflects the light from the light source 84 in a predetermined direction, an imaging lens 92, a fixed reflection mirror 94, and a mirror 88.90 that reflects the reflected light from the fixed reflection mirror 94 to the exposure position 46a and moves. It is composed of a switching reflection mirror 96 that reflects transmitted light from a projection optical system, which will be described later, to an exposure position.

The imaging lens static moving optical system 82 applied to the copying apparatus 10 of the present invention is configured to be capable of 0.5 to 2.0 times zoom copying.

In the case of a reflective original, the original image on the original platen 80 is illuminated by a light source 84 in a light source unit, and the reflected light is incident on a first mirror 86 in the same light source unit.

The light carrying the original image incident on the first mirror 86 is
The direction is changed by this mirror 86, and the second and third mirrors 8
8.90, passes through the imaging lens 92, and the fourth,
The light is reflected by the fifth mirror 94, 96, and when the shutter 102 is opened, the photosensitive material 34 (36) in the exposure section 46 is exposed.

Note that during pre-scanning, white balance correction, etc., the shutter 102 is in a closed state as shown by the dotted line in the figure, and the original image or the image on the white plate is reflected by the shutter 102 and input to the image sensor 100 to adjust the exposure correction conditions. It is to be determined.

Here, the imaging lens 92 is composed of units such as a plurality of lenses, an aperture, and a color correction filter, and converts the reflected original image on the original platen 80 onto the photosensitive material 34 (3B) of the exposure section 46 at a predetermined magnification. This system magnifies the image, forms an image, and performs exposure under optimal exposure conditions.It is equipped with an aperture and a color correction filter to enable adjustment of exposure conditions.

An example of such an imaging lens 92 is the configuration shown in FIG. 2.

As shown in the figure, the imaging lens 92 is connected to the front group 200 of the lens.
, a rear group 202 , a 14th color filter plate 204 , a fixed diaphragm plate 206 , and a second color filter plate 208 arranged in order therebetween, arranged behind the rear group 202 and vertically opposite to each other in the figure. A pair of aperture plates 210, 2 movable in the direction
12.

Here, the first and second color filter plates 204 and 208 are made of, for example, transparent glass plates, with a transparent central portion and color filter films of different colors deposited on both sides, as shown in FIG. The first color filter plate 204 has C (cyan) and Y (yellow) color filters, and the second color filter plate 208 has C (cyan) and M (magenta) color filters.

The first and second color filter plates 204, 208 and the aperture plate 210 of the variable aperture 214 mentioned above.
212 is the image sensor 10 mentioned above by pre-scanning.
The amount of insertion of each color filter into the optical path and the amount of aperture can be changed according to exposure correction conditions determined by measurement and calculation based on 0.0.

The switching reflection mirror 96 is at the position shown by the solid line in FIG. 1 when scanning and exposing a reflective original 78, but retreats from this position when scanning and exposing a transparent original.

The reflective original exposure system 12 is configured as described above.

On the other hand, the transparent original exposure system 14 is the most characteristic part of the present invention, and includes a projection optical system 110 for the transparent original 108,
It consists of a transparent original moving device 112, an image sensor 100 shared with the reflective original exposure system 12, and a shutter 102.

The projection optical system 110 includes a light source 114, a reflector 116 in front of the transmission thickness 'ff4108 (on the upstream side of the light beam),
It is composed of a condenser lens 118, a heat shielding filter 119, a color filter 120, and a diff user 122. Behind the transparent original 108, a projection lens 124, a movable reflection mirror 126, and a movable reflection original exposure system 12 are provided. and a reflective mirror 96 that is shared with the mirror.

The light source 114 may be any color light source such as a halogen lamp or a flash lamp. A reflector 116 made of a concave reflecting mirror or the like is attached to the light source 114, and reflects the light from the light source 114 toward the transmission thickness g410a.

The condenser lens 64 emits light from the light source 114,
The beam of light (visible light) reflected by the reflector 116 is focused at a certain location.

The heat filter 119 absorbs heat rays and the like contained in the light emitted from the light source 114 and transmits only visible light necessary for exposure.

Here, the light emitted from the light source 114 includes not only visible light but also light of various wavelengths, and the amount of light is not uniform, so before and after the condenser lens 118,
A light control filter such as a filter that cuts ultraviolet or infrared light rays or a peripheral illumination correction filter may be arranged.

The color filter 120 is a Y (yellow) filter 120
Three color filter plates, Y, M (7 zenta) filter M, C (cyan) filter 120C, and ND filter 120D are inserted and removed from the projection optical paths t and p independently to perform color correction and density correction of the luminous flux. The amount of insertion is determined according to the exposure correction conditions from the image sensor 100. Of course, the color filter 120 is not limited to this, and may be composed of two color filter sheets 204 and 208 used in the imaging lens 92 for reflective originals. Here, instead of the ND filter 120D, a predetermined amount of a diaphragm, such as a diaphragm plate, a light shielding plate, two parallel diaphragm plates, or an iris diaphragm, may be inserted into the optical path for density correction.

The diffuser 122 diffuses and mixes the light beam condensed by the condenser lens 118 and color-corrected or density-corrected by the color filter 120 to produce uniform light without color unevenness or illumination unevenness. A diffusion plate is provided at the exit and the interior is composed of a white diffusion wall, which may be a mirror box or a diffusion box. thus,
The light made uniform by the differential user 122 is irradiated onto the transparent original 108 located at the rear.

The transparent original moving device 112 positions and mounts a transparent original 108 such as a negative film or a slide on a movable transparent original loading table such as a scan table, and moves the transport rollers 58a, 58b and 60 in the exposure section 46 mentioned above.
a.

It operates in synchronization with the scanning conveyance speed of the photosensitive material 36 (34) by the photosensitive material 36 (34) by the photosensitive material 60b, and its moving speed is 1/n, where the photosensitive material conveyance speed is 1 and the copying magnification by the projection optical system 110 is n. . The loading table of the transparent original moving device 112 is provided with means for positioning and mounting the transparent original 108 (not shown), but at least the image portion of the transparent original 108 needs to be made of a transparent member or have an opening. There is. Since the transparent original 108 is positioned by the positioning and mounting means and mounted on the loading table of the moving device 112, the transparent original 108 is prevented from shifting or coming off due to movement of the loading table of the moving device 112. do not have. The fJ a of the loading table by the moving device 112 can be driven by conventionally known driving means. For example, it may be configured to move using a rack and binion, a drive screw and a driving nut, a belt, or a wire and a pulley. A slit 128 is provided.

Therefore, just like the reflective original exposure system 12, the transparent original exposure system 14 can perform slit scanning exposure on the photosensitive material 36 at the exposure position 46a of the exposure section 46.

The projection lens 124 is an imaging lens for focusing the original image carried by the light (slit light) transmitted through the transparent original 108 on the exposure position 46a on the photosensitive material 34, and at least along the projection optical paths t and p. Preferably, it is movable.

The reflecting mirror 126 directs the optical path of the transmitted light that has passed through the projection lens 124 toward the switching reflecting mirror 96, and moves in conjunction with the switching reflecting mirror 96. Reflection mirror 1
26 and the switching reflective mirror 96 are located at the positions shown by solid lines in FIG. Since the reflective mirror 94 of the reflective original exposure system 12 is located between the mirror 126 and the switching reflective mirror 96, the light is reflected by the back surface of the reflective mirror 94 and cannot reach the exposure position 46a.

When copying the transparent original 108, both the reflection mirror 126 and the switching reflection mirror 96 can be moved leftward in the figure from the solid line position shown in FIG. 1 to the maximum position shown by the dotted line.

In this way, when the reflecting mirrors 126 and 96 move in conjunction with each other to the left in the figure from the solid line position, the switching reflecting mirror 9
The reflected light from the reflective mirror 94 of the reflective original exposure system 12 is no longer incident on the mirror surface 6, and the light from the reflective mirror 126 of the transparent original exposure system 14 is allowed to enter.

In this way, the projection light transmitted through the transparent original 108 passes through the projection lens 124, the reflection mirror 126, and the switching reflection mirror 96, and exposes the photosensitive material 36 at the exposure position 46a.

At this time, the transparent original 108 is processed by the six-direction device 112.
Since it moves in synchronization with the scanning conveyance speed of the photosensitive material 36,
By moving the transmission thickness ff4108 over the entire image area, the entire image is scanned and exposed to the photosensitive material 36.

In the transparent original exposure system 14, similarly to the reflective original exposure system 12, during pre-scanning etc., the shared shutter 102 acts on the optical path, which is input to the image sensor 100, and the exposure correction conditions are determined. It looks like this.

The transparent original exposure system 14 is basically configured as described above.

As described above, the reflection original exposure system 1 of the exposure unit 18
2 or the transparent original exposure system 14, the exposed photosensitive material 34 (36) is sent to the processing section unit 22.

In the processing section unit 20, a developing tank 1 is provided in the processing section 22.
32, a bleaching/fixing tank 134, and a washing tank 136, 138 are provided in series, and the photosensitive material 34 (developed, bleached, fixed, and washed with water) is developed, bleached, fixed, and washed with a processing solution filled into these tanks.
36) is sent to the drying section 24.

In the drying section 24, the photosensitive material 34 (36) after being washed with water is dried and sent onto the take-out tray 140.

In the example shown in FIG. 1, the projection lens 12 of the projection optical system 110 is configured so that the copy magnification of a high-magnification copy of a transparent original can be changed.
In order to change the optical path length with the movement of 4, two reflective mirrors 126.96 that move in parallel in conjunction with each other are used, but the present invention is not limited thereto, and as shown in FIG. 3a. , a rotatable reflective mirror 150 is used instead of the reflective mirror 126 shown in FIG. 1, and a movable reflective mirror 150 is used instead of the switching reflective mirror 96 shown in FIG. In combination with the switching reflection mirror 152, the optical path length of the projection optical system 110 may be configured to be changed according to the magnification. Further, as shown in FIG. 3b, the reflection mirror 154 on the side of the projection lens 124 is made movable and rotatable, and the switching reflection mirror 15
6 may be made rotatable, preferably at a position retracted from the optical path of the reflective document exposure system 12, and these two reflective mirrors 154 and 156 may be combined to make the optical path length variable.

In the present invention, since the small-sized transparent originals that are usually used are commercially available 35 mm adhesive universal films (slides) and negative films, the magnification of the transparent original exposure system is preferably 3 to 9 times, and you can freely adjust the magnification between 3 and 9 times. It can be configured so that the magnification factor can be set.

Functions> The copying apparatus according to the present invention is basically constructed as described above, and its functions will be explained below.

In the copying apparatus 10 shown in FIG. 1, first, when the transmission original copying mode is set and the magnification is specified to a desired magnification, the projection lens 124 is moved according to the magnification, and the reflection mirror 12 is moved in accordance with the magnification.
6 and 96 move to the position indicated by the dotted line in the figure, and are arranged so that the optical path of the transparent original exposure system 14 reaches the exposure position 46a. Transparent original 108 is transferred to transparent original moving device 112
position and attach it. When the projection light source 114 of the transparent original exposure system 14 is turned on, the light emitted from the light source 114 is reflected by the reflector 116, enters the condenser lens 118, and is condensed. The collected light has heat rays and the like removed by a heat shielding filter 119, passes through a color filter 120 located at a reference position, is unified by a diff user 122, and irradiates the transparent original 108. The light transmitted through the transparent original 108 passes through the slit 128 and becomes slit light with a predetermined width.The image formation position is adjusted by the projection lens 124, and reflected by the reflection mirror 126 and the switching reflection mirror 96, and is reflected by the dotted line in FIG. As shown, the light is reflected by the shutter 102 inserted into the optical path and enters the image sensor 100.

Here, when a copy start button (not shown) of the copying device 10 is pressed, the transparent original moving device 112 moves the transparent original 10
8 and starts pre-scanning the transparent original image. When the transparent original moving device 112 moves the transparent original 108 to a predetermined position, pre-scanning of the original image is completed, image information of the original image is read by the image sensor 100, and exposure correction conditions are set. Ru.

Each color filter plate 120Y during pre-scanning.

The reference positions of ND filters 120M, 120C and ND filter 120D are set to be in open positions (insertion amount is 0).

When the pre-scan is completed and the exposure correction conditions described above are set, the Y, M%C color filter plates 120Y, 120M, 120C and the ND filter 120D are inserted in the required amount according to the exposure correction conditions. It is inserted into the optical path Lp. Further, the transparent original 108 is transferred to the moving device 112.
Returns to the movement scanning start position.

On the other hand, while the above-described prescanning and color filter correction are being performed, a photosensitive material necessary for copying according to the original is selected. If the transparent original 108 is a slide,
It is preferable to load the necessary magazines into the photosensitive material supply unit 16 so that the photosensitive material for slide copying or the photosensitive material for negative copying is selected if it is a negative film.

As an example, when the photosensitive material for slide copying is the photosensitive material 36 and the photosensitive material 36 is selected, when the conveyance mechanism (not shown) is driven, the conveyance roller 68a,
68b, 74, and 74 feed out the photosensitive material 36 by a predetermined length, and the cutter 70 cuts the photosensitive material 36 to the required length. Thereafter, the transport motor is driven again and the photosensitive material 36 is sent to the exposure section 46, and the photosensitive material 36 is sent to the exposure position 46a.
Wait right in front of.

When the shutter 102 comes to the position shown by the solid line in FIG. 1 and the optical path is directed toward the exposure section 46 to enable exposure, the transparent original moving device moves and starts main scanning of the transparent original image. At the same time, the conveyance rollers 58a and 58b of the exposure section 46
and 60a, 60b are transparent originals 108 of the photosensitive material 36.
The scanning conveyance is started in synchronization with the scanning movement speed of .

During main scanning, the color filter 120 (color filter plate 120Y
, 120M, 120C and ND filter 120D), the projection light carrying the original image that has passed through the transparent original passes through the imaging lens 124, is reflected by the reflection mirror 126.96, and is exposed. position 4
At step 6a, the photosensitive material 36 that is synchronously scanned and conveyed is exposed.

As this exposure progresses, the photosensitive material 36 is transferred to the conveying roller 58.
The conveyance guide 62 is inserted between a, 58b and 60a, 60b.
is sent downward through. In this case, the switching guide 6
4 does not act on the photosensitive material conveyance path, and the photosensitive material 36 sent from the exposure section 46 moves vertically downward within the conveyance guide 62. Therefore, when the exposed photosensitive material 36 is fed into the processing section 22 of the processing section unit 20, there is no slack in the intermediate portion of the photosensitive material 36 due to the speed difference between the photosensitive material supply section unit 16 and the processing section 22.

When all exposure is completed, the shutter 102 rotates to the position shown by the dotted line in Figure 2, and the transport motor (not shown) moves to -
It rotates in the opposite direction at times.

Therefore, the exposed photosensitive material 36 is transferred to the conveying rollers 58a and 6.
With the reverse rotation of 0a, the rear end portion moves up the conveyance guide 62, and a portion is sent into the conveyance guide 48c.

In the present invention, the transmission original exposure system 14 may be configured to turn off the projection light source 114 when exposure is completed.

This reverse conveyance is stopped when the leading end of the photosensitive material 36 is upstream of the switching guide 64.

Thereafter, the conveyance motor is rotated again in the same direction as the initial conveyance direction. In this case, the switching guide 62 acts on the photosensitive material conveyance path, and the leading end of the photosensitive material 36 is branched from the conveyance guide 62 and delivered to the branch conveyance guide 66.

Therefore, the tip of the photosensitive material 36 is connected to the branch conveyance guide 66.
and is sent to the processing section 22 of the processing section unit 20.

The exposed photosensitive material 36 sent into the processing section 22 is transferred to the developing tank 1.
32, bleached and fixed in a bleaching/fixing tank 134, washed with water [136°] After thorough washing with water at 138, the image is sent to a drying section 24, and after drying, it is transferred to a take-out tray 14.
It is taken out above 0.

In this way, even if the obtained copy image is a small-sized transparent original, it is copied at an arbitrary high magnification by the projection optical system 110 of the transparent original exposure system 14, Even if the color filter 120 of the projection optical system 110 is prescanned, the exposure correction conditions are set using the image sensor 100, and the C, M, and Y of the color filters 120 of the projection optical system 110 are
After adjusting the color correction and density correction amount, the transparent original is exposed to the most suitable light-sensitive material depending on the type of original, resulting in extremely
The image is of high quality and has good color balance. Therefore, the user can easily obtain such a high-quality copy image in one go without making any mistakes.

Further, as shown in FIG. 1, a reflective original 78 is placed on the original table 80.
Even if the copying device 10 performs copying after placing the document on the document presser 81 and pressing it with the document presser 81, the copying device 10, after pre-scanning, prints a photosensitive material corresponding to the reflective document 78, such as the photosensitive material 34, in the same manner as in the case of a transparent document.
Then, slit scanning exposure is performed and the same operation is repeated.

In the example shown in FIG. 1, the configuration is such that two magazines 30.32 can be loaded to use two types of photosensitive materials 3436, but three magazines can be loaded so that photosensitive materials of 31f1 or more can be used. It may be configured such that the above magazines can be loaded.

Although the copying apparatus according to the present invention is configured as described above, the present invention is not limited to this, and it goes without saying that various improvements and changes in design can be made without departing from the gist of the present invention. It is.

<Effects of the Invention> As detailed above, according to the present invention, it is not necessary to set a dedicated device not only for reflective originals but also for transparent originals, and also for small-sized transparent originals. Copying at any high magnification is possible.

Furthermore, according to the present invention, since the magnification of the transparent original can be set arbitrarily, not only a standard-sized transparent original but also various sizes of transparent originals can be enlarged and copied onto a predetermined photosensitive material.

[Brief explanation of drawings]

FIG. 1 is a schematic sectional view of an embodiment of a copying apparatus according to the present invention. FIG. 2 is a perspective view showing an embodiment of the imaging lens used in the reflective original exposure system of the copying apparatus shown in FIG. FIGS. 3a and 3b are respectively schematic partial sectional views of other embodiments of the copying apparatus of the present invention. Description of symbols 10... Copying device, 11... Apparatus main body, 12... Reflective original exposure system, 14... Transparent original exposure system, 16... Photosensitive material supply unit, 18... Exposure Part unit, 20... Processing part unit, 22... Processing part, 24... Drying part, 26... Reserve liquid storage part, 28... Photosensitive material supply part frame, 30.32... Magazine, 34. 36... Photosensitive material, 38... Opening/closing lid, 46... Exposure section, 46a... Exposure position, 54... Glass plate, 56... Suppression plate, 58a, 58b, 60a 60 b...Conveyance roller, 64...Switching guide, 78...Reflection original, 80...Document stand, 81...Document holder, 82...Imaging optical system, 84... Light source, 86.88.90...Mirror 92...Imaging lens, 94...Reflection mirror 96...Switchable reflection mirror 100...Image sensor, 102...Shutter, 108...Transmission Original, 110... Projection optical system, 112... Transmission thickness g4 moving device, 114... Light source for projection, 116... Reflector, 118... Condenser lens, 119... Heat shield filter, 120 ...Color filter, 120Y...Y (yellow) filter, 120M...
・M (magenta) filter, 120C...C (cyan) filter, 120D...ND filter, 122...Diffusion user, 124...Projection lens, 126...Reflection mirror 1 2 8...S Lit, 132・
...Developing tank, 134... Bleaching/fixing tank, 136.138... Washing tank, 140... Take-out tray, 200... Lens front group, 202... Lens rear group, 204.208. ...Color filter plate, 206...Fixed aperture, 210.212...Aperture plate, 214...Variable aperture, 216...Plate cam

Claims (1)

[Claims] (1) An exposure section unit equipped with an imaging optical system that scans and exposes the image of a reflective original onto a photosensitive material, and a high-magnification projection optical system that scans and exposes an image of a transparent original onto a photosensitive material, and places the photosensitive material at an exposure position. A copying apparatus comprising a photosensitive material supply unit for supplying a photosensitive material and a processing unit for developing the exposed photosensitive material, the projection optical system having a movable mirror for changing the optical path length of the projection optical system. and a mirror that acts on the imaging optical system to image the reflected light from the reflective original on the exposure position, and that is removed from the imaging optical system and focuses the transmitted light from the transparent original on the exposure position. A copying device characterized by being provided with.