JP3487945B2 - Photosensitive material processing equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photosensitive material processing apparatus for dipping and processing an exposed silver halide photographic light-sensitive material in each processing solution of a developing solution and a fixing solution while sequentially conveying it.

[0002]

2. Description of the Related Art An exposed photosensitive material is processed by a photosensitive material processing apparatus such as an automatic developing apparatus, which is sequentially dipped in a processing solution such as a developing solution, a fixing solution and washing water. In such an automatic developing device, there is an automatic developing device in which a pair of rollers is provided inside the processing tank for storing the processing liquid and between the processing tanks adjacent to each other so as to convey the photosensitive material. In order to reduce the amount of the processing solution in the upstream processing tank mixed with the processing solution in the downstream processing tank when the photosensitive material is delivered to the processing tank on the other side, it is attached to the photosensitive material by the roller pair arranged outside the processing solution. Generally, a pair of squeezing rollers and a pair of rollers that nips and conveys the photosensitive material for introduction into the processing liquid in the downstream processing tank are used together.

However, when such a structure is used, the processing liquid in the upstream processing tank adheres to the photosensitive material conveyed between the processing tanks adjacent to each other even after passing through the pair of squeezing rollers. Therefore, the photosensitive material is in an unstable processing state until the processing on the downstream side starts. For this reason, one roller of the roller pair arranged to introduce the photosensitive material into the processing liquid in the processing tank is arranged above the surface of the processing liquid, and the other roller is arranged so as to come into contact with the processing liquid. By adopting a structure in which the other liquid is pumped up and applied to the peripheral surface of the roller, the processing by the processing liquid in the downstream processing tank is started as early and clear as possible to shorten the unstable time of the processing state. At the same time, quick processing is possible.

By the way, as described above, on the surface of the photosensitive material fed from the developing tank to the fixing tank, the developer taken out of the developing tank is completely removed even if it passes through the pair of squeezing rollers due to the limitation of the driving system. It cannot be removed and a considerable amount is attached. When this developing solution enters the fixing solution containing silver ions eluted from the surface of the photosensitive material, the silver ions in the fixing solution are reduced, and the tank wall of the fixing tank and the peripheral surface of the roller to which the fixing solution adheres. There is a possibility that silver may be deposited on the surface and cause silver stain. Further, if the deposited silver adheres to the surface of the photosensitive material, it will impair the finish of the photosensitive material.

In the conventional photosensitive material processing apparatus, in order to maintain the capacity of the fixing solution, the replenishing solution is replenished to the fixing tank according to the processing amount of the photosensitive material. Therefore, the silver ion concentration of the fixing solution in the fixing tank is changed. Since it can be kept low, there was almost no problem of silver ion precipitation.

[0006]

However, in recent years,
There is a tendency to reduce the amount of waste liquid by reducing the replenishment amount of the processing liquid for environmental protection. In general, a fixing solution makes silver halide of a light-sensitive material which has not been developed by a developing solution into a water-soluble complex ion. However, if the replenishing amount of the fixing solution is reduced, the concentration of silver ion (complex ion) in the fixing solution is reduced. Will rise. When the developing solution is brought in together with the light-sensitive material, the silver ions in the fixing solution are reduced and deposited as metallic silver.

That is, when the pair of rollers for introducing the photosensitive material which has been developed by the developing solution into the fixing solution in the fixing tank is in contact with the fixing solution, when the photosensitive material to which the developing solution adheres is nipped and conveyed, Silver will be deposited on the peripheral surface of the roller pair. Especially, since one roller of the roller pair is not in direct contact with the fixing liquid, the fixing liquid is supplied to the surface of the roller via the other roller before the photosensitive material is nipped and conveyed. When the conveyance starts, the supply of the fixing solution is stopped, and therefore the developing solution supplied from the photosensitive material is accumulated on the surface of the roller, so that when the photosensitive material finishes passing, the developing solution ratio becomes close to 60%. The silver ions in the fixer will be reduced to silver on the surface of. In particular, in an apparatus for processing while conveying a light-sensitive material with the emulsion surface facing upward in relation to the exposure apparatus, the emulsion surface is faced with the one roller not in contact with the fixing solution. The silver halide inside is dissolved in the fixer,
Since the silver ion concentration increases as the photosensitive material is conveyed, the amount of reduced silver also increases.

The present invention has been made in view of the above facts, and can prevent silver stains on the peripheral surfaces of a pair of rollers for introducing a photosensitive material into a fixing solution and to finish the photosensitive material with high quality. It is an object to provide a material processing device.

[0009]

According to a first aspect of the present invention, an exposed photographic light-sensitive material is developed while being conveyed by rollers.
Development stored in the bath, fixing bath and washing bath
A photosensitive material processing apparatus for sequentially immersing in a fixing solution, a fixing solution, and washing water , wherein one roller is arranged above the surface of the fixing solution in the fixing tank and the other roller is in contact with the fixing solution. A roller pair for nipping and conveying the photographic light-sensitive material treated with the developing solution in the developing tank and introducing it into the fixing solution in the fixing tank, and a fixing solution component in the roller pair or in the fixing solution in the vicinity thereof. And a supply mechanism for supplying.

According to a second aspect of the invention, there is provided the photosensitive material processing apparatus according to the first aspect, wherein the supply mechanism is a replenishing means for supplying a replenishing stock solution of the fixer to the peripheral surface of the one roller. And

The invention of claim 3 is the invention of claim 1 or claim 2.
The photosensitive material processing apparatus according to the present invention is characterized in that the supply mechanism starts the operation immediately before the photosensitive material is nipped by the roller pair.

A fourth aspect of the present invention is the photosensitive material processing apparatus according to any one of the first to third aspects, wherein the peripheral surface of the one roller has water repellency and the peripheral surface of the other roller. Is hydrophilic.

[0013]

According to the invention described in claim 1, it is arranged to introduce the photosensitive material developed by the developing solution in the developing tank into the fixing solution in the fixing tank, and one roller is above the surface of the fixing solution. A fixing solution component (for example, a stock solution of the fixing solution) is supplied to the pair of rollers or the fixing solution in the vicinity thereof from a supply mechanism. As a result, even if the developer carried in by the photosensitive material from the upstream developing tank adheres to the peripheral surface of the roller pair, the ratio of the fixing solution to the developer on the peripheral surface of the roller pair decreases. It can be prevented.

Thus, the concentration of the fixing solution component on the peripheral surface of the rollers forming the roller pair can be kept high despite the increase in the amount of the developing solution attached to the photosensitive material and supplied. There is no silver stain on the peripheral surface of the sheet, and it is possible to prevent the finish quality of the photosensitive material from being deteriorated by the silver stain. Further, it is possible to greatly extend the maintenance cycle such as frequent cleaning of the device for removing silver stains.

Of the roller pair, the roller in contact with the fixer (the other roller) is always washed with the fixer,
Since fresh fixer is supplied to the surface, silver precipitation is unlikely to occur. On the other hand, when the photosensitive material is nipped, the fixing liquid is no longer supplied from the fixing tank to the roller above the fixing liquid surface, but the fixing liquid component is supplied from the supply mechanism. Therefore, it is possible to prevent the deposition of silver on the peripheral surface of the roller.

In a mode in which a concentrated fixer component (for example, replenishing stock solution before dilution) is supplied to the peripheral surface of the roller on the side of the roller pair which is in contact with the fixer, local development is performed only on the peripheral surface of the roller pair. It is possible to more completely prevent the precipitation of silver by increasing the ratio of the fixing solution component to the solution component.

In order to prevent silver stains on the peripheral surface of the roller outside the liquid, the ratio of the developing solution and the fixing solution attached to the peripheral surface of the roller should be 8: 2 or more. 6:
It is more preferable to increase the ratio of the fixer to 4 or more.

According to the second aspect of the invention, the fixer component to be replenished is supplied to the one roller of the roller pair. This makes it possible to reduce the ratio of the developing solution to the fixing solution on the peripheral surface of the roller (one roller) that is not in contact with the fixing solution among the rollers of the roller pair. For example, by supplying the replenishing stock solution before dilution to the peripheral surface of the roller pair by the replenishing mechanism, the ratio of the substantial fixing solution to the developing solution can be greatly increased more effectively. This mechanism is particularly suitable for the case where the photosensitive material is sandwiched and conveyed such that silver stains are likely to occur and the emulsion surface side of the photosensitive material is in contact with the roller of the roller pair which is not in contact with the fixing solution. Is effective in.

According to the third aspect of the present invention, at least the roller pair is supplied by supplying the fixer component, for example, a fixed amount to the roller pair only when necessary, on the assumption that the replenishment amount of the fixer is reduced. While the photosensitive material is being conveyed, it is possible to prevent the silver stain by holding a sufficient amount of the fixing solution component on the roller surface and increasing the ratio of the fixing solution to the developing solution. Moreover, the concentration of the fixing solution in the fixing tank can be maintained within a predetermined range.

According to the fourth aspect of the invention, the peripheral surface of the roller of the roller pair arranged above the fixing liquid surface is made water repellent, and the peripheral surface of the roller in contact with the fixing liquid is formed. Improves hydrophilicity. As a result, the amount of the developing solution that adheres to the peripheral surface of the upper roller can be suppressed, and the rotation of the roller that is in contact with the fixing solution effectively pumps up to the contact position of both rollers that make up the roller pair. The ratio of the fixing liquid to the developing liquid can be increased by using the fixing liquid, and silver stains on the peripheral surface of the roller pair can be prevented.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a schematic structure of an automatic developing device 10. This automatic developing device 10 includes a casing 14
A processing liquid processing unit 16 and a drying unit 18 are provided inside the unit, and develops the image-exposed sheet film 12.

The processing tank 20 of the processing liquid processing section 16 includes a developing tank 22 for storing a developing solution by a plurality of partition walls 20A,
It is divided into a fixing tank 24 for storing a fixing liquid and a washing tank 26 for storing washing water. In each of the developing tank 22, the fixing tank 24, and the water washing tank 26, processing racks 28, 30, 32 in which a conveying path for the sheet film 12 is formed by a plurality of roller pairs and guides are arranged. In addition, the developing tank 22
An insertion rack 34 is provided on the upstream side of the washing tank 26.
The sheet film 12 is sent to the drying rack 18 on the downstream side of the processing rack 32, and the sheet film 1
A squeeze portion 36 including a pair of rollers for squeezing the water on the surface of No. 2 is extended.

In the processing liquid processing section 18, the insertion rack 3
The sheet film 12 drawn in by 4
2, 24, and 26 are sequentially dipped in the developing solution, the fixing solution, and the washing water to be treated, and the squeeze section 36 removes the water adhering to the surface and sends out to the drying section 18.

In the drying section 18, a transport path for transporting the sheet film 12 upward is formed by a roller group 38 in which a large number of rollers including a heat roller 40 are arranged in a staggered manner, and the sheet film 12 is transported. On the other hand, the dry air generated by the dry air generating means (not shown) is blown onto the surface of the sheet film 12 to perform a drying process. The sheet film 12 that has been subjected to the drying process is provided with the discharge tray 4 provided above the processing liquid processing unit 16 from the upper turn unit 42.
It is discharged toward 8.

By the way, as shown in FIG. 2, the processing rack 30 of the fixing tank 24 is provided with a pair of rollers 60. The roller pair 60 is composed of rollers 62 and 64 arranged substantially above and below, and holds the sheet film 12 sent from the last roller pair 66 of the processing rack 28 of the developing tank 22 into the fixing tank 24. It is designed to be pulled in. The roller pair 66 has a function of squeezing the developer adhering to the surface of the sheet film 12 and collecting it in the developing tank 22, but the squeezing function is increased in consideration of the limitation of the driving force of the motor (not shown) and the mechanical strength. Therefore, the developing solution is sent to the fixing tank 24 with some developer remaining on the surface of the sheet film 12.

The roller pair 60 is composed of an upper roller 64 and a lower roller 62. The upper roller 64 does not come into contact with the fixing liquid in the fixing tank 24, but the upper roller 64 and the lower roller 64 .
Over La 62 is adapted a part is arranged so as to be in contact with the fixing solution, imparts also pumped up fixer on the peripheral surface of the roller 64 by rotating the lower roller 62. As a result, in the fixing tank 24, the roller pair 6
When the sheet film 12 is nipped by 0, the fixing process of the sheet film 12 is started.

On the other hand, the automatic developing apparatus 10 is provided with a replenishing mechanism for replenishing the developing tank 22, the fixing tank 24, and the washing tank 26 with a replenishing solution as the sheet film 12 is processed. .

FIG. 2 shows a part of the replenishing mechanism 68 for replenishing the fixing tank 24 with the replenishing solution. This replenishment mechanism 68
Is a stock tank 70 that stores the replenishing stock solution for the fixer.
The stock tank 70 is equipped with a replenishment pump 7
The tip of the pipe 74 connected to the suction side of 2 is inserted. Further, one end of a pipe 76 is connected to the discharge side of the replenishment pump 72, and the other end of the pipe 76 is connected to a nozzle 78 provided above the roller pair 60. Therefore, the supplementary stock solution in the stock tank 70 is supplied to the nozzle 78 by the operation of the supplementary pump 72. The replenishing stock solution is the same as that supplied to the fixing tank 24 together with the diluting water, but is supplied from the nozzle 78 in a high concentration without being diluted.

The nozzle 78 has a discharge port ( not shown) above the roller 64 of the roller pair 60 and discharges the supplementary stock solution to the roller 64 from above. The supplementary stock solution discharged toward the roller pair 60 is supplied to the roller 62.
Also, the surfaces of the rollers 62 and 64, which spread and rotate along the length direction of the roller 64, are wetted, and the surplus portion is fixed to the fixing tank 24.
It is designed to run down.

Supply of the replenishing stock solution to the roller pair 60 is as follows.
The replenishment pump 72 is controlled so as to perform a constant amount immediately before the sheet film 12 is sandwiched by the roller pair 60.

In addition to the replenishing mechanism 68, the fixing tank 24 of the automatic developing device 10 is provided with a water supply pump (not shown) for directly supplying dilution water to the fixing tank 24.
This water supply pump is operated together with the replenishment pump 72 to replenish the fixing water into the fixing tank 24 so that the concentration of the fixing liquid in the fixing tank 24 is maintained appropriately. Further, the fixing tank 24 is provided with a circulation means (not shown) for circulating and stirring the fixing liquid in the fixing tank 24. With this circulation means,
The fixing solution is stirred so that the concentration of the fixing solution in the fixing tank 24 becomes uniform.

Next, the operation of this embodiment will be described. In the automatic developing device 10, the sheet film 12 is fed one by one to the processing liquid processing section 16 by the insertion rack 34 with the halogenated emulsion layer facing upward, and while being conveyed, the developing solution, the fixing solution,
The treatment liquid is treated by sequentially immersing it in washing water. The sheet film 12 that has been treated with the treatment liquid is sent to the drying unit 18 where it is subjected to a drying treatment, and is sequentially ejected to the ejection tray 48 arranged above the treatment liquid treatment unit 16.

By the way, the developed sheet film 12 sent from the developing tank 22 to the fixing tank 24 by the roller pair 66 is first sandwiched by the roller pair 60 provided in the fixing tank 24, and then is put into the fixing solution. Sent in. Therefore, on the peripheral surface of the roller pair 60, the sheet film 1
The developer attached to the surface of No. 2 and taken out from the developing tank 22 is attached.

On the other hand, when the roller pair 60 is rotated, since a part of the roller 62 is in contact with the fixing solution, the fixing solution is pumped up by the peripheral surface of the roller 62, and the fixing solution is also collected on the peripheral surface of the roller 64. Adhere to. Therefore, when the sheet film 12 is sandwiched by the roller pair 60, the fixing solution is supplied to both sides of the sheet film 12, so that the fixing process is started, but the fixing solution and the sheet film 12 carry out the fixing process. The developer easily causes silver stains on the peripheral surface of the roller pair 60, particularly on the peripheral surface of the roller 64 that contacts the photosensitive surface of the sheet film 12. The reason is as follows.

When the emulsion layer on the upper surface of the sheet film 12 is brought into contact with the fixing liquid which is drawn up by the roller 62 and adhered to the peripheral surface of the roller 64, this small amount of the fixing liquid is transferred to the developing tank 22.
Sheet film 12 by converting the silver halide in the region left unreduced to silver in the developing solution described above into silver complex ions soluble in water
Elute on the surface of. Since the developer is attached to the surface of the sheet film 12, the developer is accumulated near the peripheral surface of the upper roller 64 as the sheet film 12 is conveyed,
The eluted silver ions are reduced to silver and deposited on the roller pair 60, particularly on the peripheral surface of the upper roller 64 in contact with the emulsion surface. Since the peripheral surface of the lower roller 62 is always washed with the fixing liquid, the adhesion of silver is small.

Here, the replenishing mechanism 68 of the automatic developing apparatus 10 of this embodiment replenishes the replenishing stock solution and the diluting water to the fixing tank 24 in accordance with the processing amount of the sheet film 12. Is supplied to the peripheral surface of the roller pair 60 from a nozzle 78 provided above the roller pair 60. The supply of the replenishing stock solution is performed in a fixed amount immediately before the sheet film 12 is sandwiched by the roller pair 60. The replenishing stock solution supplied to the peripheral surface of the roller pair 60 wets the rotating roller 62 and the roller 64, and the surplus is fixed in the fixing tank 2.
It falls into 4.

At this time, the supplementary stock solution adheres to the peripheral surface of the upper roller 64 and is supplied to the upper surface of the sheet film 12 (above the emulsion layer) to some extent, so that it is sandwiched between the peripheral surface of the roller 64 and the roller 64. The ratio of the substantial fixing liquid to the developing liquid on the sheet film 12 is increased. As a result, in the peripheral surface of the roller pair 60, especially the upper roller 64,
It is possible to prevent silver stain caused by a decrease in the ratio of the fixer to the developer.

That is, when the processing of the sheet film 12 progresses, the developing solution carried out from the developing tank 22 by the sheet film 12 is surrounded by the peripheral surface of the roller pair 60 of the fixing tank 24, particularly the upper roller not immersed in the fixing solution. In the structure of the prior art in which the toner adheres to and accumulates on the peripheral surface of 64, when the concentration of the fixing solution becomes lower than the concentration ratio of the developing solution to the fixing solution of 8: 2, silver stains appear on the peripheral surface of the roller 64. .

On the other hand, in the automatic developing device 10, even if a large amount of the sheet film 12 is processed by supplying the replenishing stock solution having a high concentration of the fixer component to the peripheral surface of the roller pair 60 of the fixing tank 24, the roller is processed. The decrease in the ratio of the component in the fixing solution to the component in the developing solution on the peripheral surface of the pair 60 is suppressed.

As described above, by preventing the ratio of the fixing solution to the developing solution adhering to the peripheral surface of the roller pair 60 from decreasing, it is possible to prevent silver contamination from occurring on the peripheral surface of the roller pair 60. Therefore, silver stains generated on the circumferential surface of the roller pair 60 do not adhere to the surface of the newly processed sheet film 12 and impair the finish of the sheet film 12. Moreover, it is not necessary to frequently perform maintenance such as cleaning for removing silver stains in the fixing tank 24.

The operation of the replenishing mechanism 68 for preventing the silver stain as described above can raise the concentration of the fixing solution higher than the concentration ratio of the developing solution to the fixing solution of 6: 4 on the peripheral surface of the roller pair 60. It is preferable to set the concentration of the fixing solution to be higher than 8: 2 even when the ratio of the fixing solution to the developing solution is the lowest. However, a fixed amount of the fixing solution is set in accordance with the conveyance timing of the sheet film 12. It is preferable to supply the concentrated replenishing solution having a high concentration of the components directly to the peripheral surface of the roller pair 60.

The rollers 62, 64 of the roller pair 60 are
If the concentration ratio of the developing solution to the fixing solution is higher than 8: 2 and more preferably higher than the fixing solution concentration of 6: 4, it is not limited to the high-concentration replenishing stock solution. ,
A fixing solution obtained by diluting the replenishing stock solution at a predetermined ratio may be supplied to the rollers 62 and 64.

In the present embodiment, the replenishing mechanism 68 for supplying the replenishing stock solution to the roller pair 60 has been described as the supplying mechanism, but various aspects are possible as the supplying mechanism of the present invention. For example, as shown in FIG.
As the roller pair 80 for introducing the sheet film 12 into the
A hydrophilic layer 8 that enhances hydrophilicity by roughening the peripheral surface of the lower roller 82 to facilitate scooping of the fixing liquid in the fixing tank 24.
4 may be formed, and a water repellent layer 88 that has been subjected to a water repellent treatment such as a Teflon coating layer or polyolefin may be formed on the outer peripheral portion of the roller 86 on the upper side.

Since the roller 86 is provided with the water repellent layer 88, the adhesion of the developing solution to the peripheral surface is suppressed, and the hydrophilic layer 84 is provided.
Fixing tank 24 supplied by a roller 82 provided with
The fixing solution therein prevents the ratio of the fixing solution to the developing solution from decreasing. As a result, the roller pair 8
It is possible to prevent silver stains from being generated on the peripheral surfaces of the respective rollers 82 and 86 of 0.

Further, as shown in FIG. 4, as a supply mechanism, a nozzle 78 for discharging a replenishing stock solution to be replenished in the fixing tank 24 is provided in the vicinity of the surface of the fixing solution in contact with the lower roller 62 (82). The arranged replenishment mechanism 90 may be used.

In the replenishing mechanism 90, the replenishing stock solution is supplied to the periphery of the roller 62 (82) by operating the replenishing pump 72, and the roller 62 (82) has a high concentration of the fixer component (the other components in the fixer are different). Roller 64 above fixer
It can be pumped up to (86) and applied to the peripheral surface of the roller 64 (84).

As a result, on the peripheral surface of the roller 64 (86), it is possible to prevent the ratio of the developing solution to the fixing solution from increasing, and silver contamination does not occur.

In this embodiment, the automatic developing device 10 for processing the sheet film 12 as the photosensitive material has been described as an example, but the automatic developing device 10 limits the structure of the photosensitive material processing device of the present invention. is not. Further, the present invention can be applied to a photosensitive material processing apparatus that processes various photosensitive materials such as a graphic arts photosensitive material and an X-ray film using a processing solution such as a developing solution and a fixing solution.

[0049]

As described above, in the photosensitive material processing apparatus of the present invention, since the fixing solution component is supplied to the roller pair arranged in the fixing tank by the supply mechanism, the silver stain is contaminated by the developing solution adhering to the roller pair. It has an excellent effect that it can be prevented from being generated, and the finish of the photosensitive material is not spoiled by the silver stain generated on the roller pair.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an automatic developing device of the present embodiment.

FIG. 2 is a schematic configuration diagram showing a part of a replenishing mechanism which is a main part of the automatic developing device shown in FIG.

FIG. 3 is a schematic configuration diagram of another aspect of a replenishing mechanism which is a main part of the automatic developing device shown in FIG.

FIG. 4 is a schematic configuration diagram showing still another aspect of a replenishing mechanism which is a main part of the automatic developing device shown in FIG.

[Explanation of symbols]

10 Automatic development device (photosensitive material processing device) 12 Sheet film (photosensitive material) 16 Processing liquid processing section 22 Development tank 24 fixing tank 60, 80 roller pair 62, 82 roller 64, 86 roller 68, 90 Replenishment mechanism (supply mechanism) 84 hydrophilic layer 88 Water repellent layer

Front page continuation (72) Inventor Hiroshi Nakahashi 1250 Takematsu, Minamiashigara City, Kanagawa Prefecture, Fuji Kiki Kogyo Co., Ltd. (72) Kenji Takada, 1250 Takematsu, Minamiashigara City, Kanagawa Kenji Kikai, Ltd. (56) Reference Documents JP-A-1-217344 (JP, A) JP-A-3-241348 (JP, A) JP-A-5-281689 (JP, A) JP-A-2-212839 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) G03D 3/00-17/00

Claims (4)

(57) [Claims] 1. A photosensitive material processing device for processing an exposed photographic light-sensitive material by sequentially immersing it in a developing solution, a fixing solution and a washing water respectively stored in a developing tank, a fixing tank and a washing water while conveying the exposed photographic material. One roller is disposed above the surface of the fixing solution in the fixing tank, and the other roller is in contact with the fixing solution, and the photographic photosensitive material treated with the developing solution in the developing tank is nipped and conveyed. A photosensitive material processing apparatus comprising: a pair of rollers for introducing the fixing solution into the fixing solution in the fixing tank; and a supply mechanism for supplying a fixing solution component to the fixing solution in or near the pair of rollers. 2. The photosensitive material processing apparatus according to claim 1, wherein the supply mechanism is a replenishing means for supplying a replenishing stock solution of a fixer to the peripheral surface of the one roller. 3. The photosensitive material processing apparatus according to claim 1, wherein the supply mechanism starts operation immediately before the photosensitive material is nipped by the roller pair. 4. The peripheral surface of the one roller is water-repellent and the peripheral surface of the other roller is hydrophilic. Photosensitive material processing device.