JPH0339961A - Device for processing photosensitive material - Google Patents

Abstract

PURPOSE:To prevent unequal processing, etc., while well maintaining the transportability of a photosensitive material by using continuous rollers for the transporting rollers which are installed near the photosensitive material inlet side and exist on the side in contact with the emulsion surface of the photosensitive material, among the transporting rollers positioned in a processing liquid. CONSTITUTION:The continuous rollers which continue to the length larger than the width of the photosensitive material S1 to be processed and intermittent rollers disposed with plural pieces of unit rollers axially at prescribed intervals are included axially in the transporting rollers 51a to 56a, 51b to 56b. For example, the transporting rollers 51a, 52a which are installed near the inlet side of the photosensitive material S1 and exist on at least the side in contact with the emulsion surface of the photosensitive material S1 among the transporting rollers 51a to 56a, 51b to 56b positioned in the processing liquid 3 are the continuous rollers. Both of the improved transportability of the photosensitive material S1 and the prevention of the defects, such as unequal processing, are compatibly obtd. in this way.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a photosensitive material processing apparatus used, for example, in a silver halide photocopier or an automatic processor.

<Prior Art> A silver halide photocopying machine copies an original image onto a photosensitive material, and has the advantage of being able to make high-quality copies compared to an electrophotographic copying machine.

Generally, this copying machine sends the photosensitive material taken out from the magazine of the photosensitive material supply section to the exposure section to expose the original image, sends the exposed photosensitive material to the processing section for development processing, and then sends it to the drying section. The sample is dried to obtain a copy image.

This processing section is equipped with a developing tank, a bleaching/fixing tank, and a washing tank, and the developing process is carried out by supplying a predetermined processing solution into each of these tanks and passing the photosensitive material in the exposed section sequentially. It will be done.

In a photosensitive material processing apparatus that performs such processing, a means for transporting the photosensitive material is provided for each processing tank. This conveyance means is composed of a plurality of conveyance rollers that nip and convey the photosensitive material, and a guide that guides the photosensitive material between the conveyance rollers on the downstream side in the conveyance direction, and uses these to lower the photosensitive material carried into the processing tank. Next, the photosensitive material is inverted at the bottom of the processing tank, raised, and conveyed through a route such that it is carried out of the tank.

By the way, in such a photosensitive material processing apparatus, in consideration of the transportability of the photosensitive material, all of the transport rollers located in the processing liquid are intermittently moved with short rollers at predetermined intervals in the axial direction. (hereinafter referred to as an intermittent roller)
However, in consideration of processing unevenness, it is better to use continuous rollers that are continuous in the axial direction for all conveyance rollers on the emulsion side. In this case, all the transport rollers located in the processing liquid are continuous rollers that are continuous in the axial direction.

When such an intermittent roller is used, the straightness of the photosensitive material during conveyance is improved, and skewing, meandering, twisting, wrinkles, etc. are prevented, thereby significantly reducing jamming accidents.

However, if all the conveyance rollers in the processing solution (especially the developer) or all the conveyance rollers on the side opposite to the emulsion surface are intermittent rollers, streak-like processing unevenness (roller marks) will occur on the emulsion surface. There is a drawback. The cause of such processing unevenness is that when the intermittent roller comes into contact with the emulsion side of the photosensitive material or its back side, there are contact areas and non-contact areas with the roller, or there is a difference in the emulsion side due to the presence or absence of the roller. This is thought to be because the difference in the supply amount of the processing liquid causes the progress of the processing to be accelerated in some parts and delayed in others.

<Problems to be Solved by the Invention> An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art and provide a photosensitive material processing apparatus that does not cause defects such as processing unevenness while maintaining good transportability of the photosensitive material. It's about doing.

Means for Solving the Problems> Such objects are achieved by the present invention described in (1) and (2) below.

(1) A photosensitive material processing apparatus comprising a processing tank for processing a photosensitive material by immersing it in a processing solution, and a plurality of transport rollers for transporting the photosensitive material along a predetermined path within the processing tank, the transporting device comprising: The rollers include a continuous roller with a length longer than the width of the photosensitive material to be processed in the axial direction, and an intermittent roller with a plurality of unit rollers arranged at predetermined intervals in the axial direction. A photosensitive material processing apparatus characterized in that among the conveyance rollers located, at least the conveyance roller on the side that contacts the emulsion surface of the photosensitive material, which is installed near the entrance side of the photosensitive material, is the continuous roller. .

(2) A photosensitive material processing apparatus comprising a processing tank for processing a photosensitive material by immersing it in a processing solution, and a plurality of transport rollers for transporting the photosensitive material along a predetermined path within the processing tank, the transporting device comprising: The rollers include a continuous roller whose length is longer than the width of the photosensitive material to be processed in the axial direction, and a plurality of intermittent rollers arranged at predetermined intervals in the axial direction, which are unit rollers. Among the conveying rollers located, the conveying roller on the side that contacts the emulsion surface of the photosensitive material is the continuous roller, and among the conveying rollers located in the processing liquid, the side that contacts the emulsion surface of the photosensitive material on the opposite side A photosensitive material processing apparatus, wherein the conveying roller installed at least near the entrance side of the photosensitive material is the continuous roller.

<Function> The function of the present invention with the above configuration is that, as a conveying roller located during the processing 7 night, the conveying roller on the side that contacts the emulsion surface of the photosensitive material (hereinafter referred to as the emulsion surface side) mainly rotates in its axial direction. A continuous roller (hereinafter referred to as a continuous roller) with a length longer than the width of the photosensitive material to be processed is used to prevent processing unevenness on the emulsion surface.

On the other hand, the side that contacts the side opposite to the emulsion surface of the light-sensitive material (hereinafter referred to as
The conveyance rollers on the side opposite to the emulsion are mainly intermittent rollers with excellent conveyance properties, and the conveyance rollers installed near the entrance side of the photosensitive material are continuous rollers.

By adopting such a configuration, it is possible to maintain good transportability of the photosensitive material and to prevent the occurrence of processing unevenness on the emulsion surface.

Although the reason is unknown, negative-tone emulsion is While processing unevenness hardly occurs in light-sensitive materials, processing unevenness may occur specifically in light-sensitive materials that are core-shell latent type positive-working emulsions, particularly in thin light-sensitive materials. Regarding this point, if all the conveyance rollers on the emulsion side are continuous rollers, and among the conveyance rollers on the side opposite to the emulsion side, at least the rollers installed near the entrance side of the photosensitive material are made continuous rollers, then the Regardless of the type or thickness, it is possible to achieve both good transportability and prevention of processing unevenness.

<Embodiments> Hereinafter, the photosensitive material processing apparatus of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings. First, the overall structure of a silver salt photographic color copying machine equipped with the photosensitive material processing apparatus of the present invention will be explained.

FIG. 1 is a schematic cross-sectional front view of a silver salt photographic color copying machine equipped with a photosensitive material processing apparatus according to the present invention. As shown in the figure, in the copying machine 1°, the apparatus main body 11 includes a photosensitive material supply section 12 on the right side of the figure, and an exposure section 1 on the upper side.
4. Below the processing section 16, a drying section 18 via an air chamber 17 to the left of the processing section 16, and a processing liquid storage section 19 below the processing section 16.
are provided for each.

Photosensitive material supply section 12 of this silver halide photographic color copying machine 10
is covered with a detachable casing 120, into which a pair of upper and lower magazines 24, 26 can be loaded.

Inside these magazines 24 and 26, the same or different types of photosensitive materials S1. Sa is stored in a rolled state, and is taken out from the tip to the conveyance path 121 of the photosensitive material supply section 12.

Examples of photosensitive materials include the following.

■ Sensitive materials for regular copying (positive type) ■ Sensitive materials for photographic copying (positive type) ■ Sensitive materials for negative prints (negative type) ■ Sensitive materials for overhead projectors (positive type) And these photosensitive materials ■～ ■Two magazines 2
For example, the following combinations are stored in 4.26.

Example 1 ■-■ Example 2 ■-■ Example 3 ■-■ Example 4 ■-■ Example 5 ■-■ Example 6 ■-■ Photosensitive material Sl or S (hereinafter referred to as S) drawn out from the magazine 24. (representative) is sent to the exposure window 46 of the exposure section 14 through the conveyance path 121 of the photosensitive material supply section 12, and is transferred to the transparent document table 3 provided above the exposure section 14.
The image of the color original 32 on the top is exposed. This color original 32 is held on the original platen 3 by the original presser 34.
The image of the color original 32, which is pressed to the surface of the photosensitive material S1 in the exposure window 46 by opening the shutter 44, passes through the optical means 47 and is illuminated by the light source 38 in the light source unit 36 and reflected by the plurality of mirrors 4o. It is designed to be exposed to light.

Note that when the shutter 44 is in the closed state, the original image is reflected by the inner mirror of the shutter 44 and input to the image sensor 45 to determine the exposure correction conditions (
prescan).

A switching guide 43 is provided in the middle of the conveying path 121 of the photosensitive material S1 (downstream of the n-light window 46), and the rotation of this switching guide 43 allows the photosensitive material S1 sent vertically downward to be transferred to the processing section 16 when necessary. It is designed to be introduced to the side.

The processing section 16 includes a photosensitive material processing apparatus 1 of the present invention, which will be described later.
is installed. That is, a developing tank, a bleaching/fixing tank, and two washing tanks are arranged in this order from the right side in FIG. The film is sequentially immersed in a solution, and then subjected to development, bleaching/fixing, and washing.

A processing liquid storage section 19 below the processing section 16 includes bottles 19 each storing a developing solution, a bleaching/fixing solution, and a cleaning solution.
1,192 and 193 are stored.

Each of these bottles 191, 192, and 193 is connected to the bottom liquid supply port 21 of each corresponding processing tank through a predetermined piping (not shown), and a liquid feeding pump installed in the middle of this piping. (not shown) allows fresh processing liquid (replenishment liquid) to be supplied from each bottle to the corresponding processing tank.

An air chamber 17 is provided between the processing section 16 and the drying section 18, and the photosensitive material Sl washed with water in the processing section 16 is
After passing through the air chamber 17, it is sent to the drying section 18.

By installing the air chamber 17, heat in the drying section 18, which will be described later, is transmitted to the processing section 16, thereby preventing the temperature of the processing liquid from rising above an appropriate temperature.

An exhaust fan 171 is installed in the upper part of this air chamber 17, and exhausts the warm air that has entered from the drying section 8 to the outside.

An appropriate number of transport roller pairs 9.0, one or both of which are driven and rotated, are installed in the drying section 18, and the photosensitive material S1 is transported through the drying section 18 in a substantially straight path by these transport roller pairs 90. It has become so.

Further, a duct 91 through which drying air passes is installed so as to surround this photosensitive material S1 conveyance path.

A blower fan 92 equipped with a rotor having radially formed blades is installed in the upper part of the drying section 18 , and an exhaust port of the blower fan 92 is connected to one end of a duct 94 . Further, the other end of the duct 94 is connected to the upper upstream end of the duct 91. Note that a heater 95 that can heat the air from the blower fan 92 to, for example, about 60 to 150° C. is installed in the duct 94.

On the other hand, on the lower right side of the drying section 18, a blower fan 93 similar to that described above is installed, and the exhaust port of this blower fan 93 is connected to the lower upstream end of the duct 91.

The air sucked in from the intake port of the ventilation fan 92 is discharged from the exhaust port, and when it passes through the duct 94, it is heated by the heater 9.
5, the hot air of about 50 to 100° C., for example, is supplied to the drying start section 96 upstream of the duct 91.

On the other hand, the air taken in from the intake port of the blower fan 93 is
The air is supplied from the exhaust port to a drying start section 96 located upstream of the duct 91. The air supplied to these drying start sections 96 (hereinafter referred to as "drying air") flows through the duct 91 along the conveyance path of the photosensitive material S1, during which moisture is removed from the surface of the photosensitive material S. do.

The drying air coming out of the opening on the downstream side (drying end section 97) of the duct 91 is divided into two parts in the vertical direction.

The drying air that has been diverted upward passes through the space 18a and is sucked into the intake port of the ventilation fan 92 again, and the drying air that has been diverted downward is sucked into the intake port of the ventilation fan 93 again through the space 18b. Ru.

In this way, in the drying section, the drying air that has dried the photosensitive material S1 in the duct 91 is again supplied to the drying start section 96, forming a circulation.

Photosensitive material S1 dried in such a drying section 18
passes through the photosensitive material passing gate 98 and is delivered onto the take-out tray 99.

Next, the configuration of the photosensitive material processing apparatus of the present invention will be explained in detail.

FIG. 2 is a sectional front view showing an example of the configuration of the photosensitive material processing apparatus of the present invention. As shown in the figure, the photosensitive material processing apparatus 1 has a vertically long processing tank 2, in which a processing liquid 3 is filled to a predetermined level. Note that the type of processing liquid 3 is determined depending on the use of the photosensitive material processing apparatus 1. Its use is typified by the development of photosensitive materials, but it can also be applied to post-development bleaching, fixing, bleaching/fixing, subsequent cleaning, and other processing (e.g. reversal, adjustment, stabilization, stopping, etc.) can do.

The processing tank 2 has a shape and dimensions that allow it to removably house a rack 4, which will be described later, and has a liquid supply port 21 at the bottom for supplying processing Mi (replenisher) 3 into the tank, and an upper part of the processing tank. A drain port 22 for draining the exhausted processing liquid 3 is provided near the liquid level.

A portion of a rack 4 that supports a transport roller, a guide, etc. is immersed in the processing liquid 3 in the processing tank 2. The rack 4 includes a pair of side plates 41 and 42, and these side plates 41 and 42 are supported parallel to each other at regular intervals by stays (not shown) placed at the four corners between the side plates. There is.

Between these side plates 41 and 42 are six pairs of transport rollers 51a, b, 52a%b, 53a, immersed in the processing liquid 3.
b, 54a, b.

55a, b, 56a, and b are passed over, and carry-in rollers 5 are installed on the entrance and exit sides of the photosensitive material above the processing tank.
7 and the carry-out roller 58 are hooked up.

Furthermore, guides 76 and 77 are installed above the rollers 57 and 58, respectively. One end of the rotating shaft of the pair of transport rollers and one or both of the inlet and outlet rollers 51 to 58 extends outside the side plate 16 or 18, and a gear is attached (not shown). These gears are meshed through predetermined relay gears, and are driven by a drive means (not shown) for conveying the photosensitive material including a motor, a transmission, a power transmission member, etc. installed outside the processing tank 2. When a rotational force is applied to the rollers, each of the rollers 51 to 58 rotates in a predetermined direction at a predetermined speed.

A lid body 8 composed of lid pieces 81, 82 and 83 fixed between side plates 41, 42 is installed near the liquid level of the processing liquid 3. An entrance 84 and an exit 85 for the photosensitive material S1 are formed between the lid pieces 81 and 82 and between the lid pieces 82 and 83, respectively.

Note that the processing liquid may evaporate from the carry-in port 84 and the carry-out port 85, or the processing liquid in the processing tank may deteriorate due to contact with outside air.
In particular, in order to prevent oxidation, a shutter (not shown) may be provided to open and close the carry-in port 84 and the carry-out port 85. As an example of the structure of this shutter, the lid body 8
A movable lid that can be moved in the left and right directions in FIG. can be mentioned.

Conveyance rollers 51a, 51b and conveyance rollers 52a, 52b
Guides 61 and 71 are installed between the photosensitive material S1 and the photosensitive material S1, respectively. This guide 6
1 and 71 are conveyance rollers 52a on the downstream side in the conveyance direction;
This is for guiding the photosensitive material S1 between the holes 52b.
Therefore, the guides 61 and 71 are installed to be inclined so that their flat ends, that is, the ends on the conveying rollers 52a and 52b side approach each other.

Also, between the conveyance rollers 52a, b and 53a, b, between the conveyance rollers 54a, b and 55a, b, and between the conveyance roller pair 5.
5a, b and 56a, b are respectively provided with guides 62.
72, guides 63.73 and 64.74 are installed. These guides also have the same functions as the guides 61 and 71 described above.

Note that in the guides 63.73 and 64.74, since the photosensitive material SI rises between the guides, the guides are installed at an angle so that the upper ends of the guides approach each other.

A 1-inversion guide 75 is installed at the bottom of the processing tank 2 . This reversing guide 75 has a curved surface curved in an arc shape, and the photosensitive material S is guided along this curved surface (guiding surface).
1 is inverted by about 180''.

As shown in FIG. 2, the end of the guide on the side opposite to the emulsion side of the photosensitive material SI is connected to an intermittent roller 501.5, which will be described later.
It is preferable that the structure extends to the gap between the unit rollers 506 of No. 02. That is, the lower end of the guide 71,
At the upper and lower ends of the guides 72, 73 and 74 and at both ends of the reversing guide 75, there are transport rollers (intermittent rollers) 52b, 53b, 54b, 55b near the ends, respectively.
A narrow extension 78 is formed that extends into the gap 508 between the unit rollers 506 of 56b (see FIGS. 4 and 6).

With such a configuration, the transportability of the photosensitive material is further improved, and the jamming prevention effect is further enhanced.
The reason is as follows.

That is, when the photosensitive material Sl is immersed in a processing solution, the emulsion layer swells and curls so that the emulsion side is exposed (convex). When processing the photosensitive material S1 on its side, the leading edge of the photosensitive material S1 is pressed against the conveyance roller or guide on the side opposite to the emulsion side, so that an extension portion 7 is attached to the end of the guide on the side opposite to the emulsion side.
8, the leading end of the photosensitive material S1 can be guided more reliably.

Note that such an extension part 78 may have a comb shape, for example, and each gap 508 of the corresponding intermittent roller
It is preferable that the device be installed in a non-contact manner.

Furthermore, the arrangement pattern of the extension portions 78 is not limited to that shown in the drawings, and may be provided only at positions that are particularly likely to cause troubles such as jamming.

It should be noted that each of the guides 61 to 64 and 71 to 75 is preferably plate-shaped with a through hole formed therein to allow the flow of the processing liquid, and these can be arbitrarily attached between the side plates 41 and 42 by means of Fixed.

The photosensitive material S is transported by each conveyance roller and guide.
1 is transported within the processing tank 2 along a predetermined route. That is, the photosensitive material S passing through the guide 76 and the carry-in roller 57
I is carried into the processing liquid 3 through the carry-in port 84, and is successively held by conveying rollers 51a, 52a, b, and 53a, and also by guides 61, 71, and 62.
72 to descend inside the processing tank 2. The photosensitive material Sl sent out from the conveyor rollers 54a, b is reversed by a reversing guide 75 installed near the bottom of the processing tank 2, and then transferred to the conveyor rollers 54a, b, 55a, b and 5.
6a and 6b, and guided by guides 63.73 and 64.74, it ascends inside the processing tank 2. Photosensitive material S sent out from conveyance rollers 56a and 56b
I is pulled up from the processing liquid 3, transported out of the processing tank through the transport port 85, and sent to the next process via the transport roller pair 58 and the guide 77.

If the space surrounded by the conveyance path of the photosensitive material SI (hereinafter referred to as "inner space") is V, then the photosensitive material S1 is usually conveyed with its emulsion side facing the inner space V ( However, it is also possible to transport the photosensitive material Sl with the back side facing the inner space V).

The photosensitive material processing apparatus of the present invention is characterized by the structure and arrangement of the conveying roller.

First, the shape of the conveyance roller will be explained with reference to FIGS. 3 to 6.

The conveyance roller shown in FIG. 3 is a continuous roller 501.

This continuous roller 501 has a cylindrical roller body 505 fixed to a rotating shaft 509.
5 is continuous for a predetermined length in the axial direction.

The length of this roller body 505 is set to be longer than the width of the photosensitive material to be processed. If it is shorter than the width of the photosensitive material, the conveyance performance will be poor.In other words, when the photosensitive material passes through this roller, both edges of the leading edge of the photosensitive material will not be regulated, resulting in poor feeding between the next guides and causing jamming. This is because.

The conveyance roller shown in FIG. 4 is an intermittent roller 503.

This intermittent roller 503 has a plurality of relatively short cylindrical unit rollers 506 fixed to a rotating shaft 509 at predetermined intervals, preferably at equal intervals, along the axial direction.

The number of installed unit rollers 506 and the installation interval are not particularly limited. For example, unit rollers 506 with a length of about 5 to 60 mm
Approximately 3 to 18 pieces are provided at intervals of 10 to 160 mm.

The continuous roller 502 shown in FIG.
This roller is similar to No. 1, and has a large number of protrusions 507 formed on the circumferential surface of a roller body 505.

The intermittent roller 504 shown in FIG.
This roller is similar to No. 3, and has a large number of protrusions 507 formed on the circumferential surface of each unit roller 506.

Continuous roller 502 and intermittent roller 504 having such protrusions 507 have increased gripping force and improved conveyance compared to rollers 501 and 503 without protrusions.

The shape of the protrusion 507 is cylindrical, conical, hemispherical,
Examples include elliptical or parabolic rotating bodies, and the diameter of the base end of these protrusions is, for example, about 2 to 10 mm, and the height of the protrusion is about 2 mm.
~7 mm is possible.

Moreover, the arrangement density of such protrusions 507 is as follows.

The number is preferably about 0.5 to 5 pieces/c++''.

Note that the shape and arrangement of the protrusions 507 are not limited to the dotted shape (spot shape) as shown in the figure, but may be linear, for example.

In these continuous and intermittent rollers 501 to 504, the roller main body 505 and the unit roller 506 are made of various natural or synthetic rubbers such as silicone rubber, fluororubber, urethane rubber, neorene rubber, butadiene rubber, neorene-butadiene rubber, etc. , Tetron,
Examples include various resins such as nylon, silicone, Teflon, vinyl chloride, and phenolic resin, ceramics such as alumina, corrosion-resistant metals such as stainless steel, titanium, and Hastelloy, and combinations of these. In particular, it is preferable to use an elastic material such as silicone rubber, fluororubber, or urethane rubber, or to construct at least the portion that comes into contact with the photosensitive material Sl (the circumferential surface of the roller or the protrusion 507) with a similar elastic material.

The continuous roller 501 or 502 and the intermittent roller 503 or 504 are arranged as follows in the photosensitive material processing apparatus 1 shown in FIG.

First, among the pair of conveyance rollers that sandwich the photosensitive material Sl introduced into the processing liquid 3 through the entrance 84, the inner space V
Conveying rollers 51a, 52a located inside (emulsion side),
53a, 54a, 55a and 56a are all the continuous rollers 501 or 502. Note that the conveyance rollers 51a to 56a are the continuous rollers 50
When comparing 1 and 502, continuous roller 5 without protrusions
It is preferable to use the continuous roller 501 because the use of the continuous roller 501 causes less uneven processing.

Conveyance roller 51b which is a partner roller of conveyance roller 5fa
The continuous roller 501 or 502, especially the conveyance roller 5
It is preferable to use a continuous roller having the same shape as 1a.

Next, regarding the conveyance roller 52b, which is the counterpart roller of the second-stage conveyance roller 52a, the continuous roller 501 or 5
02, the intermittent roller 503 or 504 may be used, but the intermittent roller is preferable, and the intermittent roller 504 is particularly preferable.

Further, conveyance rollers 53b, 54b, 55b and 56
Regarding b, either a continuous roller or an intermittent roller may be used, but an intermittent roller is preferable, and an intermittent roller 504 is particularly preferable. However, in the present invention, it is excluded that all of the transport rollers 51 a s b to 56 a, b in the processing liquid are continuous rollers, or all of them are intermittent rollers. This is because in the former case, the transportability is poor, and in the latter case, roller marks are produced on the emulsion surface of the photosensitive material.

In the present invention, the preferred range for arranging the continuous rollers 501 or 502 is as follows.

That is, the photosensitive material S in the processing liquid 3.

When the length of the conveyance path is L, the conveyance roller on the side opposite to the emulsion side that is within L/3 (especially within L/4) from the photosensitive material entrance side of the conveyance path is a continuous roller, and if the length exceeds L/3. It is preferable that the conveyance roller on the side opposite to the emulsion side in the range is an intermittent roller. This makes it possible to achieve the best balance between improving the transportability (straightness) of the photosensitive material and preventing uneven processing.

In addition, regarding the carry-in roller 57 and the carry-out roller 58 installed outside the processing liquid 3, continuous rollers 501, 502,
Although any of the intermittent rollers 503 and 504 may be used, it is preferable to use the continuous roller 501 in that it is effective in wiping off the processing particles adhering to the surface of the photosensitive material S1.

In the present invention, it is preferable that all the conveyance rollers on the emulsion side in the processing liquid 3 are continuous rollers, but the invention is not limited to this, and some of these conveyance rollers, especially the L/ The present invention (1) above also includes a configuration in which all or part of the conveying rollers in the range exceeding 3 are intermittent rollers. In addition, all the conveyance rollers on the emulsion side in the processing liquid 3 should be continuous rollers, and the conveyance rollers near the photosensitive material entrance side on the anti-emulsion side should not be continuous rollers (for example, all the conveyance rollers on the anti-emulsion side should be continuous rollers). A device having an intermittent roller configuration is also included in the present invention as described in (1) above.
These materials can provide the same effects as described above, except for the specific type and thickness of the photosensitive material.

In the conventional photosensitive material processing apparatus described above, roller marks (processing unevenness) caused by the intermittent roller occur relatively often when processing positive type photosensitive materials. Therefore, it is preferable that the photosensitive material processing apparatus of the present invention, particularly the photosensitive material processing apparatus of the present invention described in (2) above, includes at least a positive-working photosensitive material as the processing object, such as the above-mentioned combination of photosensitive materials. is highly effective in applying the present invention.

Regarding the thickness of the photosensitive material, since the thinner the photosensitive material is, the more likely it is that processing unevenness will occur and the transportability will be more likely to be reduced. This method is highly effective when the processing target includes a thin photosensitive material, for example, a photosensitive material with a thickness of about 50 to 150 mm.

Note that the configuration of the photosensitive material processing apparatus of the present invention, particularly the arrangement of the conveyance rollers, is not limited to that shown in FIG. 2. Regarding the arrangement of the conveyance rollers, for example, the conveyance rollers may be arranged alternately along the conveyance path, in a so-called staggered arrangement.

In this case as well, the structure of each conveyance roller (continuous or intermittent roller) is the same as described above.

In the present invention, the types of photosensitive materials to be processed are not particularly limited, and include, for example, color negative film, color reversal film, color photographic paper, color positive film, color reversal photographic paper, photosensitive material for plate making, XI! Examples include various photosensitive materials such as photographic materials, black and white negative films, black and white photographic paper, and microphotosensitive materials.

Further, the present invention can be applied to, for example, a wet type copying machine, an automatic developing machine,
It can be applied to various photosensitive material processing devices such as printer processors, video printer processors, coin machines for making photo prints, and color paper processing machines for plate inspection.

<Examples> Hereinafter, the present invention will be described in more detail with reference to specific examples.

■.

A positive photosensitive material a shown below was produced.

LZz Blue Light and Dan 1” Paper support laminated on both sides with polyethylene (thickness 80
1st layer to 14th layer on the front side of 2f of μ and 200μ
A color photosensitive material was prepared by coating the 15th layer to the 16th layer on the back side. The polyethylene on the first layer coating side contains titanium oxide (4 g/m") as a white pigment and a trace amount (0,003 g/m") of ultramarine as a bluish dye (the chromaticity of the surface of the support is 8 for L*, a*, bI system
8.0. -0.20. -0.75).

(Photosensitive layer composition) The components and coating amount (g/rr? unit) are shown below. Regarding silver halide, the coating amount is shown in terms of silver. The emulsions used in each layer were prepared according to the manufacturing method of emulsion EMI, which will be described later. However, as the emulsion for the 14th layer, a Lippmann emulsion without surface chemical sensitization was used.

1st layer (antihalation/I) Black colloidal silver...0. lO gelatin...0.70 2nd jl
f (middle layer) Gelatin...0.70 3rd
Layer (low sensitivity red sensitive layer) Silver bromide spectrally sensitized with red sensitizing dyes (ExS-1, 2, 3) (average grain size 0.25 μ, size distribution [coefficient of variation 18%, octahedral) ...Silver chlorobromide spectrally sensitized with 0.04 red sensitizing dye (ExS-1,2,3) (silver chloride 5 mol%, average particle size 0.40μ, size distribution 10
%, octahedron) ...0.08 gelatin
...1.00 cyan coupler (εxC-1/ExC-2/ExC-3=1/110.
2: weight ratio)...0.30 Antifading agent (Cpd-1/Cpd-2/Cpd-3/C
pd-4=1/1/l/1: weight ratio)...0.18
Stain inhibitor (Cpd-5)...0.003
Power puller dispersion medium (Cpd-6)...0.03 coupler solvent (5o1v-1/5olv-2/5olv-3=l/l
/1: weight ratio)...0.12 Fourth layer (high sensitivity red-sensitive layer) Silver bromide spectrally sensitized with red sensitizing dye (ExS-1, 2, 3) (average grain size 0.12) 60μ, size distribution 15%, octahedron)
...0.14 gelatin
...1.00 cyan coupler (ExC-
1/ExC-2/ExC-3=1/110.2: weight ratio)...0.30 anti-fading agent (Cpd-1/Cpd-2
/Cpd-3/Cpd-4=1/1/1/1: weight ratio)
...0.18 force puller dispersion medium (Cpd-6)
...0.03 coupler solvent (5o1v-1/5olv
-2/5olv-3=l/l/17 weight ratio)...0
．． 12 5th layer (intermediate layer) Gelatin...1.00 Color mixture prevention agent (Cpd-7)...0.08 Color mixture prevention agent solvent (Solv-4/5olv-54/1: weight ratio)・0
．． 16 polymer latex (Cpd-8)...0. l
O 6th layer (low sensitivity green sensitive layer) Silver bromide spectrally sensitized with green sensitizing dye (ExS-4)
Average particle size 0.25μ, size distribution 8%, octahedral)
...Silver chlorobromide (silver chloride 5 mol%) spectrally sensitized with a 0.04 green sensitizing dye (ExS-4).

Average particle size 0.40μ, size distribution 10%, octahedron)...0.06 gelatin...0.80 magenta coupler (ExM-1/ExM-2=1/l: weight ratio)
0.11 anti-fading agent (Cpd-9/Cpd-26=1/l: weight ratio)
・・0.15 stain inhibitor (Cpd-10/Cpd-
11/Cpd-12/Cpd-13:10/7/7/1
: Weight ratio)...0.025 Coupler dispersion medium (Cpd-6)...0.05 Coupler solvent (5olv-4/5olv-6=1/1 : Weight ratio)
・0.15 7th layer (high sensitivity green-sensitive layer) Silver bromide spectrally sensitized with green sensitizing dye (ExS-4)
Average particle size 0.65 μ, size distribution 16%, octahedral)...0.10 gelatin ・
・・0.80 magenta coupler (ExM-1/ExM-
2/ExM-3=1/1/l: weight ratio)...0.1
1 anti-fading agent (Cpd-9/Cpd-26=1/1
: weight ratio)...0.15 Stain inhibitor (Cpd-10/Cpd-11/Cpd
-12/Cpd-13=lO/7/7/1: weight ratio)
...0.025 coupler dispersion medium (Cp d -6) ・0.05 coupler solvent (5olv-4/5olv-6=l/l: weight ratio)
-0,15 8th layer (intermediate layer) 9th layer (yellow filter layer) same as 5th layer Yellow colloidal silver (average particle size 100λ) ... o, 12 Gelatin ... 0.07 Color mixing prevention 1
1J (Cpd-7) ・0.03 color mixing inhibitor solvent (Solv-4/5olv-5=1/1: weight ratio)
・0.10 polymer latex (Cpd-8)...
0.07 10th layer (intermediate layer) 11th layer (low sensitivity blue sensitive layer) same as 5th layer Silver bromide spectrally sensitized with blue sensitizing dye (ExS-5, 6) (average grain size 0 .40μ, size distribution 8%, octahedral)...Silver chlorobromide spectrally sensitized with 0.07 blue sensitizing dye (ExS-5,6) (silver chloride 8 mol%, average grain size 0.07) 60μ, size distribution 11%, octahedral) ...0.14 gelatin ...0.80 yellow coupler (ExY-1/εxY-2=1/l: weight ratio)
0.35 Anti-fading agent (Cpd-14)...0
．． lO stain inhibitor (Cpd-5/Cpd-15=115: weight ratio)...
・0.007 force blur dispersion medium (Cpd-6) ・・
・0.05 coupler solvent (So 1 v-2) ・
... O, lO 12th layer (high sensitivity blue sensitive layer) Silver bromide spectrally sensitized with blue sensitizing dye (ExS-5, 6) (average grain size 0.85μ, size distribution 18%, octahedral) )
...0.15 gelatin
...0.60 yellow coupler (ExY-1/ExY-2=1/1: weight ratio)
-0,30 anti-fading agent (Cpd-14)...
0.10 stain inhibitor (Cpd-5/Cpd-15=115: weight ratio)...
・0.007 force blur dispersion medium (Cpd-6) ・・
・0.05 coupler solvent (So 1 v-2) ・
0.10 13th layer (ultraviolet absorption layer) Gelatin...1.00 Ultraviolet absorber (Cpd-2/Cpd-4/Cpd-161+
l/l/l: weight ratio)...0.50 color mixing prevention agent (
Cpd-7/Cpd-17+1/l: weight ratio)...
0.03 Dispersion medium (Cpd-6)...0.02 Ultraviolet absorber solvent (Solv-2/5olv-7=1/1: weight ratio)
・o, og anti-irradiation dye (Cpd-18/Cpd-19/Cpd-20/Cpd
-21/Cpd-27=10/10/13/15/20
: Weight ratio)...0.05 14th layer (protective layer) Fine grain silver chlorobromide (silver chloride 97 mol%, average particle size 0.1μ)...0.03 Acrylic modified copolymer of polyvinyl alcohol (Molecular weight 50.000) ...0. O
1 Equivalent amount of polymethyl methacrylate particles (average particle size 2.4μ) and silicon oxide (average particle size 5μ) ...0.05 Gelatin ...1.80 Gelatin hardening agent (H-1/H-2. 1/l: weight ratio)...0.1
8 15th layer (back layer) Gelatin...2.50 UV absorber (Cpd-2/Cpd-4/Cpd-16=1
/l/l: weight ratio)...0.50 dye (Cpd-
18/Cpd-19/Cpd-20/Cpd-21/C
pd-27=1/1/1/l/l: weight ratio)...
・0.06 16th layer (back protective layer) Equivalent amount of polymethyl methacrylate particles (average particle size 2.4μ) and silicon oxide (average particle size 5μ) ...0.05 Gelatin
...2.00 gelatin hardening agent (H-1/
H-2 = 1/1 (weight ratio)...0,14 An aqueous solution of potassium bromide and silver nitrate of 1EH-1 was simultaneously added to an aqueous gelatin solution at 75°C over 15 minutes with vigorous stirring,
Octahedral silver bromide grains with an average grain size of 0.35 μm were obtained. At this time, 0.3 g of 3,4-dimethyl-1 per mole of silver
, 3-thiazoline-2-thione was added. To this emulsion, 6 mg of sodium thiosulfate and 7 mg of sodium thiosulfate per mole of silver were added.
A chemical sensitization treatment was performed by sequentially adding chloroauric acid (tetrahydrate) and heating at 75° C. for 80 minutes. Using the thus obtained grains as cores, the grains were further grown in the same precipitation environment as the first time, to finally obtain an octahedral monodisperse core/shell silver bromide emulsion with an average grain size of 0.7 μm. The coefficient of variation in particle size was approximately 10%. To this emulsion, 1.5 mg of sodium thiosulfate and 1.5 mg of chloroauric acid (tetrahydrate) were added per mole of silver, and the mixture was heated at 60°C for 60 minutes to perform chemical sensitization treatment, and the internal iWt image type halogen A silver oxide emulsion was obtained.

Each photosensitive layer contains ExZK-1 and ExZK- as nucleating agents.
2 to silver halide, respectively 10-"10-"
% by weight, Cpd-22 was used as a nucleation accelerator in an amount of 10-''% by weight. Furthermore, in each layer, Alkanol Ester and Magefac F-120 (manufactured by Dainippon Ink Co., Ltd.) were used. In the silver halide and colloidal silver containing layer, (Cpd'-23, 24, 25) was used as a stabilizer.
was used.

The structural formula of the compound used to prepare positive photosensitive material a is shown below.

xS-1 xS-2 xS-3 xS-4 xS-5 xS-6 pci-t Cpd-2 Cpd-3 Cpd-4 Cpd-5 Cpd-6 Cpd-7 Cpd-8 Cpd-9 pa-10 Cpd- 11 Cpd-12 Cpd-13 pa-14 Cpd-15 pa-16 cpa-17 Cpd-18 cpci-19 Cpd-20 Cpd-21 Cpd-22 Cpd-23 Cpd-24 Cpd-25 Cpd-26 Cpd-27 xC -1 xC-2 xC-3 ExM-1 ExM-2 ExM-3 ExM-1 ExM-2 Solv-I Solv-2 Solv-3 Solv-4 Solv-5 Solv-6 Solv-7 -I -2 xZK- 1 Di(2-ethylhexyl) sebacate trinonyl phosphate di(3-methylhexyl) phthalate tricresyl phosphate dibutyl phthalate trioctyl phosphate di(2-ethylhexyl) phthalate 1.2-bis(vinylsulfonylacetamido)ethane 4.6 -dichloro-2-hydroxy-1,3,5-triazine Na salt 7-(3-ethoxythiocarbonylaminobenzamide)-9-methyl-10-propargyl-1゜2.3.4-
Tetrahydroacridinium trifluoromethanesulfonate xZK-2 2-[4-(3-[3-(3-[5-(3-[2-chloro-5-(l-dodecyloxycarbonylethoxycarbonyl)phenylcarbamoyl] -4-hydroxy-1
-naphthylthio)tetrazol-1-yl]phenyl)
ureido]benzenesulfonamido)phenyl]-1-
Formylhydrazine■.

A negative photosensitive material shown below was prepared.

A multilayer photographic paper having the layer structure shown below was prepared on a paper support laminated on both sides with polyethylene. The coating solution was prepared as follows.

(Preparation of coating liquid for the first layer) Yellow coupler (ExY, -1) and (ExY-2
) 10.2g, 9.1g respectively and color image stabilizer (Cpd
-1) Add and dissolve 27.2 cc of ethyl acetate and 7.7 cc (8.0 g) of high boiling point solvent (Solv-1) to 4.4 g, and mix the Kono solution with 10% gelatin containing 8 cc of 10% sodium dodecylbenzenesulfonate. Aqueous solution 185c
Emulsified and dispersed in c. This emulsified dispersion and emulsions EMI and EM2 were mixed and dissolved, and the gelatin concentration was adjusted to have the following composition to prepare a first layer coating solution. The coating solutions for the second to seventh layers were also prepared in the same manner as the coating solution for the first layer. The gelatin hardening agent for each layer is 1-oxy-3
5-dichloro-8-triazine sodium salt was used.

Moreover, (Cpd-2) was used as a thickener.

(Layer structure) The composition of each layer is shown below. The numbers indicate coating It (g/rr
r) represents the silver halide emulsion coating amount in terms of silver.

Support Paper support laminated on both sides with polyethylene (thickness 8
(2 types: 0μ and 200μ) The polyethylene on the first layer side contains a white pigment (TiO2) and a bluish dye.

-th layer (blue-sensitive layer) Monodisperse silver chlorobromide emulsion (EMl) spectrally sensitized with a sensitizing dye (ExS-1)...0.13 sensitizing dye (E
A monodisperse chlorobromide emulsion (EM2) spectrally sensitized with
) ...0.13 gelatin
...1.86 Yellow Cabler (ExY-1)
=0.44 yellow coupler (E x Y -2)
...0.39 color image stabilizer (Cpd-1)
...0.19 solvent (Solv-1) -
0.35 Second layer (color mixing prevention layer) Gelatin...0.99 Color mixing prevention agent (Cpd-3)...0.08 Third layer (green sensitive layer) Sensitizing dye (ExS-2,3) Monodisperse silver chlorobromide emulsion (EMS) spectrally sensitized with...Monodisperse silver chlorobromide emulsion (EM4) spectrally sensitized with 0.05 sensitizing dye (ExS-2,3)...・0.11 gelatin magenta coupler (ExM-1 Color image stabilizer (Cpd-4) Color image stabilizer (Cpd-5) Color image stabilizer (Cpd-6) Solvent (Solv-2) Solvent (Solv-3) Fourth layer (ultraviolet absorption layer) Gelatin ultraviolet absorber (Cpd-7/Cpd-8/Cpd-9=3/2/6
:) Weight ratio) ...0.70 ...0.05 ...0.27 Color mixing inhibitor (Cpd-10) Solvent (Solv-4) Fifth layer (red sensitive layer) Sensitizing dye (ExS -4,5) Monodisperse silver chlorobromide emulsion (EMS) spectrally sensitized...1.80...0.39...0.20...0.02...0. 03 ...0.12 ...0.25 ...1.60 ...0.07 Monodisperse silver chlorobromide emulsion (EM6) spectrally sensitized with a sensitizing dye (ExS-4,5) )...0.16 Gelatin...0.92 Cyan coupler (ExC-1) -=0.32 Color image stabilizer (Cpd-8/Cpd-9/Cpd-12=3/4/2
: weight ratio)...0.17 Polymer for dispersion (Cpd-11)...0.28 Solvent (Solv-2)...0.
20 Sixth layer (ultraviolet absorbing layer) Gelatin...0.54 ultraviolet absorber (Cpd-7/Cpd-9/Cpd-12=115/3
: weight ratio)...0.21 Solvent (Sol v-2)...0.0
8 Seventh layer (protective layer) Gelatin...1.33 Acrylic modified copolymer of polyvinyl alcohol (degree of modification 17%)...0.17 Liquid paraffin...0.03 Also, at this time, irage As a dye for preventing oxidation, (Cpd-
13, cpct-14) was used.

Furthermore, each layer contains Alkanol B (manufactured by DuPont), sodium alkylbenzenesulfonate, succinate ester, and Mage as an emulsifying dispersant and coating aid.
facx F-120 (manufactured by Dainippon Ink Co., Ltd.) was used.

As a stabilizer for silver halide, (Cpd-15,1
6) was used.

Details of the emulsion used are as follows.

Emulsion core shape Particle size Br content Coefficient of variation (μ)
(no1%) EMI Cube EM2 Cube EM3 Cube EM4 Cube EMS Cube EM6 Cube 1, B 80 0.75 80 0.5 83 0.4 83 0.5 73 0.4 73 0.08 0.07 0.09 0゜10 0.09 0, t.

The structural formula of the compound used to prepare the negative photosensitive material is shown below.

xY-1 I xY-2 r# xM-1 xC-1 n■ xS-1 xS-2 xS-3 xS-4 xS-5 Cpd-1 Cpd-2 Cpd-3 Cpd-4 cpa-s Cpd-6 Cpd-7 Cpd-8 nμ Cpd-9 cpci-10 Cpd-11 cpct-12 Cpd-13 cpct-14 Cpd-15 Cpd-16 Solv-1 dibutyl phthalate 5olv-2) licresyl phosphate 5olv-3 trioctyl Phosphate 5olv-4t-linonyl phosphate The above positive working photosensitive material a! After imagewise exposure of Sample No. 3 and Negative Photosensitive Material B (both A4 size), color development processing was performed in the following processing steps.

Note that the treatment was performed for three rounds (until the total amount of replenishment became three times the amount of liquid in the tank).

Enri process Temperature Akatsuki Seki Plate filling △Liquid color development 38℃ 2 minutes 15 seconds 370 mj
I11 Bleach-fixing 30-34℃ 40 seconds 320ml 31 Water washing ■ 27-33℃
40 seconds -31 water wash■ 27-33℃
40 seconds 400m 3j drying 70~8
0°C for 30 seconds Amount of replenishment per 1 m'' of photosensitive material (two-tank countercurrent method for water washing ① to ②) The composition of each processing solution is as follows.

Components D-Sorbitol Sodium naphthalene sulfonate/formalin condensate Ethylenediamine Tetrakismethylene phosphonic acid Diethylene glycol Benzyl alcohol Potassium bromide Benzotriazole Sodium sulfite N,N-bis(carboxymethyl)hydrazine D-Glucose triethanolamine N-ethyl-N-(β-methanesulfonamidoethyl)-3-methyl-4-aminoaniline sulfate Potassium carbonate optical brightener (diaminostilbene type) Add water to pH (25°C) Mother liquor replenisher 0. 15g 0.15g 0.20g 0.20g 1.5g 1.5g 12.0ml 16.0mg 13.5mg 18.0mA 0.70g 0.003g 0.004g 2.4g 3.2g 4.0g 5.3g 2 .0g 2.4g 6.0g 8.0g 6.4g 8.5g 30.0g 25.0g 1.0g 1.2g 1000ml 1000ml 10.25 11.00! (The replenishing solution is the same as the mother liquor) Ingredients Mother liquor Ethylenediaminetetraacetic acid, disodium, dihydrate Ethylenediaminetetraacetic acid, Fe(II diammonium,
Ammonium thiosulfate dihydrate (700g/j) p-) Sodium luenesulfinate Sodium bisulfite 5-mercapto-1,3,4-triazole Ammonium nitrate 2゜0g 70.0g 80mj 45.0g 35.0g 0.5g 10. Add 0 g of water and adjust the pH (25°C) to 000 mj 6.10. Both the L mother liquor and the replenisher are tap water, mixed with H type strongly acidic cation exchange resin (Amberlite IR-120B manufactured by Rohm and Haas) and OH type anion. Water was passed through a mixed bed column packed with exchange resin (Amberlite IR-400) to bring the concentration of calcium and magnesium ions to 3 mg # or less, followed by 20 mg/l of sodium isocyanurate dichloride and 1 liter of sodium sulfate. .5 g/l was added. The pH of this solution is 6.
It was in the range of 5 to 7.5.

The processing apparatus used was a modified version of the automatic processor for color copying AP-5000 manufactured by Fuji Photo Film Co., Ltd., and the developing tank of this apparatus had the structure shown in FIG.

Eight pairs of conveying rollers in the developer were installed at approximately equal intervals along the path for conveying the sensitive material in the liquid. In this case, the configuration of each conveyance roller is as shown in the symbols in Table 1 below, and the roller pairs are installed in the order of No., No.,
1.2.3.4.5.6.7.8. In addition, when the transport path length in the liquid is L, No. 1.2.3
The roller pair was located within L/4 from the photosensitive material entrance side.

Further, the structure of the conveying roller was appropriately combined with those shown in FIGS. 3 to 6, and the following three types of roller constituent materials were prepared.

The results obtained are shown in Table 1 below.

The symbols in Table 1 are as follows.

L22 standing 1 ■... Continuous roller (without protrusions) ■... Continuous roller (with protrusions) ■... Intermittent roller (without protrusions) ■... Intermittent roller (with protrusions) In addition, roller ■ The diameter of and ■ is 25mm, and the length is 55mm.
0+1101, and rollers ■ and ■ have a diameter of 25 m.
Five unit rollers each having a length of 80mm and a length of 80IIllI+ are arranged on a rotating shaft at intervals of 117.5mm.

Further, the protrusions of the rollers (1) and (2) are oblong in shape, the diameter of the base end is 4 m+n, the height is 3 mm, and the arrangement density is 2 protrusions/cm''.

Roller a...Neobrene rubber B...Silicone rubber C...Polyvinyl chloride Inspection of the uprightness and straightness of the photosensitive material (no skew or meandering), and the presence or absence of kinks and wrinkles. Judgment was made comprehensively.

0...Extremely good ○...Good Δ...Slightly poor ×...Poor (jamming occurs) Fork 1 Shibu no 1” L top After processing, the emulsion surface was observed with the naked eye.

The presence or absence of marks (streaked) was examined.

0... No roller marks at all ○... Almost no roller marks △... Some roller marks ×... Quite a few roller marks Roller As shown in Table 1 above, the roller on the emulsion side is In the photosensitive material processing apparatus of the present invention in which all rollers are continuous, the roller on the opposite side of the emulsion side is No. 1, and the roller up to the 1°2.3 position is a continuous roller, and the subsequent rollers are intermittent rollers (Case 1).
．． 2 and 3), regardless of the material of the roller, extremely good results were obtained in both conveyance performance and prevention of processing unevenness for all positive and negative type photosensitive materials.

Also, among the rollers on the emulsion side, the latter rollers (No.
The photosensitive material processing apparatus of the present invention (Case 5) in which only the rollers on the emulsion side (after position 5) are intermittent rollers, or the rollers on the side opposite to the emulsion side are all continuous rollers, and all the rollers on the side opposite to the emulsion side are intermittent rollers Although the photosensitive material processing apparatus (Case 6) was slightly less effective in preventing uneven processing than the above, generally good results were obtained in both transportability and preventing uneven processing.

On the other hand, Case 7.8, which is a comparative example:! Samples Nos. 3 and 9 do not have both good conveyance properties and the effect of preventing uneven processing.

Next, as a modified version of the AP-5000 automatic processor for color copying, which is different from the above, 1) bleaching and constant @ tanks have the structure and arrangement shown in Figure 2 and Table 1, and 2) two washing tanks are installed. 3) The structure and arrangement of the developing tank and bleaching/fixing tank are shown in Fig. 2 and Table 1. 4) The developing tank and two washing tanks are arranged as shown in Fig. 2 and Table 1. 5) The bleaching/fixing tank and two washing tanks have the structure and arrangement shown in Figure 2 and Table 1. 6) All treatment tanks have the structure and arrangement shown in Figure 2. When we fabricated products with the structure and arrangement shown in Table 1 and conducted the same processing experiments as above, we obtained almost the same results as in Table 1 for each, especially for 3), 4) and 6). Ta.

<Effects of the Invention> As described above, according to the photosensitive material processing apparatus of the present invention,
It is possible to achieve both good transportability of the photosensitive material and prevention of defects such as processing unevenness.

In particular, all of the conveyance rollers on the emulsion side in the processing liquid are continuous rollers, and within L/3 from the entrance side of the photosensitive material in the conveyance path.
More preferably, when the conveyance roller on the side opposite to the emulsion, which is within L/4 (L = conveyance path length of the photosensitive material in the processing liquid), is a continuous roller, it is preferable to use a positive-working photosensitive material or a support with a thickness of Even when relatively thin photosensitive materials of about 50 to 150 μm are processed, the above effects are exhibited.

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional front view of a copying machine equipped with a photosensitive material processing apparatus of the present invention. FIG. 2 is a sectional front view showing an example of the configuration of the photosensitive material processing apparatus of the present invention. FIG. 3 and FIG. 5 are perspective views each showing a configuration example of a conveying roller (continuous roller) used in the present invention. FIG. 4 and FIG. 6 are perspective views each showing a configuration example of a conveying roller (intermittent roller) used in the present invention. Explanation of symbols 10... Copying machine 11... Apparatus main body 12... Photosensitive material supply section 120... Casing 121... Conveyance path 14... Exposure section 16... Processing section 17... Air chamber 171...exhaust fan 18...drying section L8a, 18b-space 19...processing liquid storage section 191.192.193...bottle 24.26...magazine 30...manuscript table 32 ...Color original 34...Document holder 36...Light source unit 38...Light source 40...Mirror 43...Switching guide 44...Shutter 45...Image sensor 46...Exposure window 47...Optical means 90...Transport roller pair 91...Duct 92,93...Blower fan 94...Duct 95...Heater 96...Drying start part, 97...Drying end Part, 98...Sensitive material passage gate 99...Take-out tray...Sensitive material processing device 2...Processing tank 21...Liquid supply port 22...Drainage port 3...Processing liquid 4. ...Rack 41.42...Side plates 51a to 56a, 51b to 56b...Conveyance roller 57
... Carrying-in roller 58... Carrying-out roller 61-64. 71-74... Guide 75... Reversing guide 76.77... Guide 78... Extension part 8... Lid body 81.82 .83...Lid piece 84...Carry-in port 85...Carry-out port 501.502...Continuous roller 503.504...Intermittent roller 505...Roller body 506...Unit roller 507...・Protrusion 508...Gap 509...Rotation axis S,,S,...Photosensitive material application person Fuji Photo Film Co., Ltd. Patent attorney Seikan Ishii
Patent attorney increase 1) Tatsuya FIG, 2

Claims (2)

[Claims] (1) A photosensitive material processing apparatus comprising a processing tank for processing a photosensitive material by immersing it in a processing solution, and a plurality of transport rollers for transporting the photosensitive material along a predetermined path within the processing tank, the transporting device comprising: The rollers include a continuous roller with a length longer than the width of the photosensitive material to be processed in the axial direction, and an intermittent roller with a plurality of unit rollers arranged at predetermined intervals in the axial direction. A photosensitive material processing apparatus characterized in that, among the conveyance rollers located, at least the conveyance roller on the side that contacts the emulsion surface of the photosensitive material among the conveyance rollers installed near the entrance side of the photosensitive material is the continuous roller. (2) A photosensitive material processing apparatus comprising a processing tank for processing a photosensitive material by immersing it in a processing solution, and a plurality of transport rollers for transporting the photosensitive material along a predetermined path within the processing tank, the transporting device comprising: The rollers include a continuous roller with a length longer than the width of the photosensitive material to be processed in the axial direction, and an intermittent roller with a plurality of unit rollers arranged at predetermined intervals in the axial direction. Among the conveying rollers located, the conveying roller on the side that contacts the emulsion surface of the photosensitive material is the continuous roller, and among the conveying rollers located in the processing liquid, the side that contacts the emulsion surface of the photosensitive material on the opposite side A photosensitive material processing apparatus, wherein the conveying roller installed at least near the entrance side of the photosensitive material is the continuous roller.