JP2000010250A - Photosensitive material processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a processing liquid attached to a transit part and a squeeze part from being fixed there while being deposited and hardened because by evaporation with a simple structure. SOLUTION: This photosensitive material processor is provided with a processing tank storing the processing liquid and a carrying means 30 carrying a photosensitive material P in the processing tank at a processing part 2 processing the material P. Besides, it is provided with a sheet material carrying means 41 carrying a sheet material 40 to the inside of the processing tank. Then, the material 40 is carried with a prescribed timing by the carrying means 30 of the processing part 2.

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 exposing a photosensitive material to light and processing it with a processing solution.

[0002]

2. Description of the Related Art The so-called photofinisher market for developing photographs is tending to be decentralized year by year, and the market is rapidly changing from a laboratory called a lab to a mini-lab for processing at a store specializing in photography. It is increasingly spurred. The number of places that carry out in-store processing is also increasing in supermarkets and drug stores other than photo specialty stores. In any case, you can receive it on the day you submit it to development,
Or, the development process is completed during shopping and the need to receive and return a photographic print has been met, and there is an increasing demand for such rapid processing.

[0003] Stores other than such specialty photo stores,
When development processing is performed in offices and the like, part-time workers and non-professionals who are not specialized operators start processing, and downsizing of equipment due to simplicity of maintenance, stable processing performance, installation space, etc. It becomes important.

Usually, in a photosensitive material processing apparatus, for example, a color negative film or a color reversal film,
In a camera, there is an apparatus that develops a photosensitive material that has been exposed in advance, and an apparatus that has a step of performing exposure printing such as color paper and a step of performing development processing. In general, there is a system in which a processing tank is filled and a photosensitive material is automatically immersed therein.

[0005] In such a tank processing, one having a transfer section for transporting the photosensitive material to the next processing tank between a plurality of processing tanks for storing the processing liquid, and one having a squeeze section before the drying section. If the processing liquid is not treated for a predetermined time while the processing liquid is adhered to the transition section and the squeeze section, the processing liquid evaporates and precipitates and hardens, and is fixed to the transition section. Deposits may adhere to or damage the photosensitive material. For this reason, there is a type in which cleaning water is supplied to a transfer portion or a squeeze portion so as not to evaporate or to be cleaned.

[0006]

As described above, the washing water is supplied to the crossover portion and the squeeze portion so as not to evaporate.
Washing increases the complexity of the device, increases the manufacturing cost of the device, and increases the size of the device. In particular, when installing in a place where store processing is performed in a supermarket or a drugstore other than a photograph specialty store, there is a problem that it is difficult to secure an installation space.

Further, since the cleaning water flows into the processing tank, if a certain amount or more of the cleaning water flows, there arises a problem that the characteristics of the processing liquid change and affect the print finish. Further, removing the transfer rack and the squeeze portion for cleaning also increases the work load of the operator.

The present invention has been made in view of the above points, and has a simple structure in which a treatment liquid adhering to a transition portion or a squeeze portion is prevented from evaporating, being precipitated and hardened, and being fixed to the transition portion or the squeeze portion. It is an object of the present invention to provide a photosensitive material processing apparatus.

[0009]

Means for Solving the Problems In order to solve the above problems and achieve the object, the present invention has the following constitution.

According to the first aspect of the present invention, there is provided a photosensitive material processing apparatus comprising: a processing section for storing a processing solution in a processing section for processing a photosensitive material; and a conveying means for conveying the photosensitive material in the processing tank. The apparatus according to claim 1, further comprising a sheet material transport unit configured to transport the sheet material into the processing tank, wherein the sheet material is transported at a predetermined timing by the transport unit of the processing unit. ].

According to the first aspect of the present invention, the sheet material is conveyed to the processing section at a predetermined timing, so that the processing liquid is supplied by the sheet material to, for example, a transfer section disposed between the processing tanks. Can be. By setting the transition portion to the wet state with the treatment liquid attached thereto with such a simple structure, it is possible to prevent the treatment liquid from evaporating, being precipitated and hardened, and being fixed to the transition portion.

According to a second aspect of the present invention, there is provided a processing section for storing a processing solution in a processing section for processing a photosensitive material; a drying section for drying the photosensitive material processed in the processing tank; A photosensitive material processing apparatus having a conveying means for conveying the sheet material, wherein the conveying means for conveying the sheet material to the processing unit is provided, and the sheet material is conveyed at a predetermined timing by the conveying means of the processing unit. Material processing equipment. ].

According to the second aspect of the present invention, the sheet material is conveyed to the processing section at a predetermined timing, so that the processing liquid is transferred by the sheet material to, for example, a transfer section or a drying section disposed between processing tanks. It can be supplied to the squeeze section arranged in the preceding stage. By setting the processing liquid in a wet state in which the processing liquid adheres to the transition portion and the squeeze portion with such a simple structure, it is possible to prevent the processing liquid from evaporating and being precipitated and hardened, and to be fixed to the transition portion and the squeeze portion. .

According to a third aspect of the present invention, there is provided a photosensitive material processing apparatus according to the first or second aspect, wherein the sheet material is conveyed when the photosensitive material is not processed within a predetermined time. ].

According to the third aspect of the present invention, when the photosensitive material is not processed within a predetermined time, the sheet material is conveyed, and the processing liquid is supplied to the crossover section and the squeeze section with a simple structure by time management. Thus, even when the processing of the photosensitive material is not performed, the wet state can be obtained in which the processing liquid adheres to the crossover portion and the squeeze portion.

According to a fourth aspect of the present invention, there is provided a photosensitive material according to the first or second aspect, wherein the sheet material is conveyed based on a dry state of a transition portion disposed between the processing tanks. Processing equipment. ].

According to the fourth aspect of the present invention, the sheet material is conveyed based on the dry state of the transfer section, the processing liquid is reliably and efficiently supplied to the transfer section and the squeeze section, and the photosensitive material is processed. Even when it is not, it can be in a wet state in which the processing liquid has adhered to the transition section and the squeeze section.

According to a fifth aspect of the present invention, there is provided a light-sensitive material according to the first or second aspect, wherein the sheet material is conveyed based on a dry state of a squeeze section disposed before the drying section. Processing equipment. ].

According to the fifth aspect of the present invention, the sheet material is conveyed based on the dry state of the transfer section, the processing liquid is reliably and efficiently supplied to the transfer section and the squeeze section, and the photosensitive material is processed. Even when it is not, it can be in a wet state in which the processing liquid has adhered to the transition section and the squeeze section.

According to a sixth aspect of the present invention, there is provided a method as described above, wherein the sheet material conveying means guides a sheet material at a standby position above the processing unit to a stage preceding the processing unit and returns the sheet material from a stage subsequent to the processing unit to the standby position. The photosensitive material processing apparatus according to any one of claims 1 to 5, wherein: ].

According to the sixth aspect of the present invention, the sheet material is normally at the standby position, is guided to the front stage of the processing unit at a predetermined time, and is returned to the standby position from the rear stage. Is simple.

According to a seventh aspect of the present invention, there is provided the photosensitive material processing apparatus according to any one of the first to sixth aspects, further comprising a switching unit for returning the sheet material to a standby position. ].

According to the seventh aspect of the present invention, the sheet material can be returned to the standby position with a simple structure by switching the switching means.

The invention according to claim 8 is characterized in that the sheet material transporting means is provided inside an opening / closing lid for covering the processing section. Processing equipment. ].

According to the eighth aspect of the present invention, the sheet conveying means is provided inside the opening / closing lid which covers the processing section, so that the distance for feeding the sheet to the processing section or returning from the processing section can be reduced. By opening the lid, the sheet material can be easily taken out for cleaning or replacement.

[0026] According to a ninth aspect of the present invention, the sheet material conveying means includes a sheet conveying mechanism for conveying the sheet material,
9. The photosensitive material processing apparatus according to claim 1, further comprising a driving unit for driving the sheet conveying mechanism. ].

According to the ninth aspect of the present invention, the sheet material can be conveyed with a simple structure in which the driving means drives the sheet conveying mechanism.

According to a tenth aspect of the present invention, there is provided the photosensitive material processing apparatus according to the ninth aspect, wherein the driving unit drives the sheet conveying mechanism independently of the driving unit of the processing unit. ].

According to the tenth aspect of the present invention, the sheet material can be efficiently conveyed by the sheet conveying mechanism independent of the driving means of the processing unit under control independent of the processing unit.

The invention according to claim 11, wherein the sheet transport mechanism is connectable to driving means of the processing section via a clutch. ].

According to the eleventh aspect of the present invention, the sheet conveying mechanism is driven by the driving unit of the processing unit, the driving unit is also used, and the structure is inexpensive due to the on-off operation of the clutch.

According to a twelfth aspect of the present invention, there is provided the photosensitive material processing apparatus according to the ninth aspect, wherein the sheet transport mechanism comprises a single feed roller pair. ].

According to the twelfth aspect of the present invention, the sheet material is transported with a simple structure using a single feed roller pair.

According to a thirteenth aspect of the present invention, there is provided a method as described above, wherein the sheet material can be stopped at least at the standby position, is sent to the conveyance path by the single feed roller pair, and is fed from the conveyance path to a single feed roller. 13. The photosensitive material processing apparatus according to claim 12, wherein the length of the photosensitive material can be returned to a pair. 』
It is.

According to the thirteenth aspect of the present invention, the sheet material can be reliably conveyed, and can be reliably stopped at the standby position.

According to a fourteenth aspect of the present invention, there is provided the photosensitive material processing apparatus according to any one of the first to thirteenth aspects, wherein the processing section conveys the sheet material by controlling the temperature in a standby state. apparatus. ].

According to the fourteenth aspect of the present invention, since the sheet material is transported by the temperature control in the standby state, no special control for transporting the sheet material is required, and the power consumption is small.

According to a fifteenth aspect of the present invention, there is provided the photosensitive material processing apparatus according to any one of the first to thirteenth aspects, wherein the processing section conveys the sheet material without performing temperature control. apparatus. ].

According to the fifteenth aspect, since the sheet material is conveyed without performing temperature control, power consumption is small.

According to a sixteenth aspect of the present invention, there is provided the present invention, wherein the sheet material is not deteriorated by a processing liquid.
The photosensitive material processing apparatus according to claim 15. ].

According to the sixteenth aspect of the present invention, since the sheet material is not deteriorated by the processing liquid, the sheet material has durability and does not adversely affect the processing liquid in the processing tank.

(17) The apparatus according to any one of (1) to (16), wherein the sheet material has wettability. ].

According to the seventeenth aspect of the present invention, since the sheet material has wettability, the processing liquid can be effectively supplied to the transfer section by the sheet material.

(18) The apparatus according to any one of (1) to (16), wherein the sheet material has a surface roughness. ].

According to the eighteenth aspect of the present invention, since the sheet material has a surface roughness, the processing liquid can be effectively supplied to the transfer section by the sheet material.

[0046]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the photosensitive material processing apparatus of the present invention will be described, but the present invention is not limited to these embodiments. FIG. 1 is a schematic configuration diagram of a photosensitive material processing apparatus. The photosensitive material processing apparatus 1 of this embodiment is for developing photographic paper, which is a photosensitive material that has been exposed, and includes a developing processing tank 3, a bleach-fix processing tank 4, a stabilizing processing tank 5 in a processing unit 2. , 6 and 7 processing tanks,
A drying unit 8 is provided.

A transport rack 9 having transport rollers 9a is provided in each processing tank, and transports the photosensitive material P by rotation of the transport rollers 9a. A transfer section 10 is provided between the processing tanks, and the transfer section 10 includes rollers 11.
And a guide 12. The guide 12 guides the conveyance of the photosensitive material P to the next processing tank, and the roller 11 squeezes the processing liquid so that the processing liquid is not brought into the next processing tank.

The drying unit 8 is provided with a drying rack 13. The drying rack 13 has a hot air nozzle 14 and a transport roller 15. Hot air is sent from the hot air nozzle 14 to the photosensitive material P conveyed by the rotation of the conveyance roller 15,
The hot air dries the photosensitive material P. A squeeze section 16 is provided between the last stabilization tank 7 and the drying section 8, that is, before the drying section 8. The squeeze section 16 has a roller 17 and a guide 18. The guide 18 guides the conveyance of the photosensitive material P to the next drying unit 8,
The roller 17 squeezes the processing liquid so as not to be brought into the next drying unit 8.

In the processing section 2, a transfer path 20 is formed by a transfer rack 9 disposed in each processing tank and a drying rack 13 disposed in the drying section 8. The photosensitive material P is moved along the transport path 20 by driving the transport means 30 having the transport rollers 9a and 15 of the transport rack 9 and the drying rack 13 by a drive means 31 including a drive motor and a power transmission mechanism. Each of the developing tank 3, the bleach-fixing tank 4, the stabilizing tanks 5, 6, and 7 and the drying unit 8 are sequentially conveyed and developed.

The photosensitive material processing apparatus 1 is provided with sheet material conveying means 41 for conveying a sheet material 40 of a fixed length to the processing section 2 at a predetermined time. Sheet material conveying means 41
Transports the sheet material 40 when the processing of the photosensitive material P is not performed within a predetermined time. For example, the detection information from the photosensitive material detection unit S1 provided in the processing unit 2 is sent to the control unit 32. When the control unit 32 does not detect the photosensitive material within a predetermined time, the sheet material conveyance unit 41 is driven to drive the sheet material. 4
Convey 0.

This sheet material transporting means 41
It has a sheet conveying mechanism 42 for conveying 0 and a driving means 43 for driving the sheet conveying mechanism 42. The sheet conveying mechanism 42 includes a conveying roller 44, a guide 45, and the like. The driving means 43 is constituted by a power transmission means such as a driving motor and a conveyance belt for transmitting the power of the driving motor to the conveyance rollers.

In the control section 32, the dry state detecting means S2,
The sheet material 40 is conveyed based on the dried state of the transfer section 10 and the squeeze section 16 obtained from S3. The dry state of the transfer section 10 and the squeeze section 16 is determined by, for example,
2, the roller is irradiated with light or ultrasonic waves by S3, and it is detected that the processing liquid is dry from the reflection of the light ultrasonic waves,
Alternatively, wind can be blown to the roller, and the humidity of the wind hitting the roller can be detected, and thus the dry state can be detected.

If processing is not performed for a predetermined period of time with the processing liquid adhered to the transfer section 10 or the squeeze section 16, the processing liquid evaporates and precipitates and hardens, and is fixed to the transfer section. Deposits may adhere to or damage the photosensitive material when the sheet material is processed. However, by transporting the sheet material 40 having a certain length to the transport path 20 of the processing unit 2 at a predetermined time, the sheet material 4
0, the processing liquid is transferred to, for example, the squeeze section 16 disposed before the transfer section 10 and the drying section 13 disposed between the processing tanks.
Can be supplied to With such a simple structure, the transfer portion 10 and the squeeze portion 16 can be brought into a wet state to which the processing liquid is adhered, and the processing liquid evaporates, precipitates and hardens, and adheres to the transfer portion 10 and the squeeze portion 16. Can be prevented.

As the sheet material 40, for example, a resin sheet such as PET or TAC is used. Preferably, the sheet material 40 does not deteriorate due to the processing liquid, and the sheet material 40 does not deteriorate due to the processing liquid. For this reason, the sheet material 40
Is durable and does not adversely affect the processing liquid in the processing tank. The sheet material 40 is durable, can be used repeatedly, and can be reused, for example, about 100 times. It is preferable that the sheet material 40 be replaced in about a month for a certain period, depending on the frequency of use.

The sheet material 40 preferably has wettability, and since the sheet material 40 has wettability, the processing liquid is effectively supplied to the transfer section 10 and the squeeze section 16 by the sheet material 40. Can be. Further, the sheet material 40 preferably has a surface roughness in which the surface is formed unevenly, and since the sheet material 40 has a surface roughness, the processing liquid can be effectively transferred by the sheet material 40 to the transfer section 10 or the squeeze. It can be supplied to the unit 16. Conversely, a sheet material having low wettability can be used, and in this case, there is an effect that the load on the drying unit is not increased.

The sheet material conveying means 41 causes the sheet material 40 to stand by at a position above the processing unit 2, and transfers the sheet material 40 at the standby position above the processing unit 2 to the processing unit 2.
And returns to the standby position from the subsequent stage of the processing unit 2, that is, the subsequent stage of the drying unit 13. The processing unit 2 includes a sheet material 40
Switching unit 50 for returning the unit to the standby position.
The sheet material 40 can be returned to the standby position with a simple structure by switching of the switching means 50 provided in the above.

Normally, the sheet material 40 is at the standby position. At a predetermined time, the sheet material 40 is guided to the preceding stage of the processing unit 2, that is, the preceding stage of the developing tank 3, and returned to the standby position from the subsequent stage of the drying unit 8. It has a simple structure and is easy to handle.

The control section 32 controls the processing section 2 to be in a standby state in response to an input from the power switch 51. The sheet material 40 can be conveyed by controlling the temperature in the standby state. In this case, no special control is required as in the case of developing photographic paper, and by passing the sheet material 40 through the drying unit 8 in the standby state, the sheet material 40 can be dried and power consumption is small.

In the processing section 2, the sheet material 40 can be conveyed without performing temperature control.
For example, when a resin sheet such as PET or TAC is used, 0 is only necessary for the surface to be wet and there is no need for drying, and the power consumption can be further reduced by conveying the sheet material 40 without performing temperature control. .

FIG. 2 is a schematic structural view of another embodiment of the photosensitive material processing apparatus. In the photosensitive material processing apparatus 1 of this embodiment, the sheet material transporting means 41 is provided inside an opening / closing lid 60 that covers the processing unit 2. As described above, the sheet material conveying means 41 is provided inside the opening / closing lid 60 that covers the processing unit 2, so that the distance that the sheet material 40 is sent to the processing unit 2 or returned from the processing unit 2 can be shortened. By opening the sheet material, the sheet material 40 can be easily taken out and washed or replaced.

Further, the sheet material 40 can be conveyed with a simple structure in which the sheet conveying mechanism 42 is driven by the driving means 43. Further, the driving unit 43 drives the sheet conveying mechanism 42 independently of the driving unit 31 of the processing unit 2, and thus efficiently conveys the sheet material 40 under control independent of the processing unit 2. be able to.

FIG. 3 is a schematic structural view of another embodiment of the photosensitive material processing apparatus. In the photosensitive material processing apparatus 1 according to this embodiment, the sheet conveying mechanism 42 can be connected to the driving unit 31 of the processing unit 2 via the clutch 35, and the driving unit 31 is also used, and the clutch 35 is connected and disconnected. Is an inexpensive structure.

FIG. 4 is a schematic structural view of still another embodiment of the photosensitive material processing apparatus. In this embodiment, the sheet transport mechanism 42 is constituted by a single feed roller pair 70, and the sheet member 40 can be stopped at least at the standby position. 20 and is returnable from the transport path 20 to a single feed roller pair 70.

As described above, the sheet material 40 is conveyed with a simple structure by the single feed roller pair 70 and the sheet material 4
0 can be reliably transported, and can be reliably stopped at the standby position.

[0065]

As described above, according to the first aspect of the present invention, the sheet material is conveyed to the processing unit at a predetermined timing, so that the processing liquid is transferred by the sheet material, for example, between the processing tanks. Can be supplied to By setting the transition portion to the wet state with the treatment liquid attached thereto with such a simple structure, it is possible to prevent the treatment liquid from evaporating, being precipitated and hardened, and being fixed to the transition portion.

According to the second aspect of the present invention, the sheet material is conveyed to the processing section at a predetermined timing, so that the processing liquid is disposed by the sheet material, for example, at a stage before the crossing section or drying section disposed between the processing tanks. Can be supplied to the squeeze section. By setting the processing liquid in a wet state in which the processing liquid adheres to the transition portion and the squeeze portion with such a simple structure, it is possible to prevent the processing liquid from evaporating and being precipitated and hardened, and to be fixed to the transition portion and the squeeze portion. .

According to the third aspect of the present invention, when the processing of the photosensitive material is not performed within a predetermined time, the sheet material is conveyed, and the processing liquid is supplied to the crossing section and the squeezing section with a simple structure by time management. Even when the processing of the material is not performed, the wet state in which the processing liquid adheres to the crossover portion and the squeeze portion can be obtained.

According to the fourth aspect of the present invention, the sheet material is conveyed based on the dry state of the transfer section, the processing liquid is reliably and efficiently supplied to the transfer section and the squeeze section, and the processing of the photosensitive material is not performed. However, the wet state in which the processing liquid has adhered to the transition section and the squeeze section can be obtained.

According to the fifth aspect of the present invention, the sheet material is conveyed based on the dry state of the transfer section, the processing liquid is reliably and efficiently supplied to the transfer section and the squeeze section, and the processing of the photosensitive material is not performed. However, the wet state in which the processing liquid has adhered to the transition section and the squeeze section can be obtained.

According to the sixth aspect of the present invention, the sheet material is normally at the standby position, and the sheet material is guided to the front stage of the processing unit at a predetermined time and returned to the standby position from the rear stage, thereby having a simple structure and easy handling. is there.

According to the seventh aspect of the present invention, the sheet material can be returned to the standby position with a simple structure by switching the switching means.

According to the eighth aspect of the present invention, since the sheet conveying means is provided inside the opening / closing lid that covers the processing section,
The sheet material can be sent to the processing unit or returned from the processing unit in a shorter distance, and the sheet material can be easily taken out for cleaning or replacement by opening the opening / closing lid.

According to the ninth aspect of the present invention, the sheet material can be conveyed with a simple structure in which the driving means drives the sheet conveying mechanism.

According to the tenth aspect of the present invention, the sheet material can be efficiently conveyed by the sheet conveyance mechanism independent of the driving means of the processing unit and under the control independent of the processing unit.

According to the eleventh aspect of the present invention, the sheet conveying mechanism is driven by the driving unit of the processing unit, the driving unit is also used, and the structure is inexpensive due to the intermittent operation of the clutch.

According to the twelfth aspect of the present invention, the sheet material is conveyed by a simple structure using a single feed roller pair.

In the invention according to claim 13, the sheet material is
It can be stopped at least in the standby position, sent out to the transport path by a single feed roller pair, and has a length that can return to a single feed roller pair from the transport path, and can reliably transport the sheet material, and It can be reliably stopped at the standby position.

According to the fourteenth aspect of the present invention, since the sheet material is transported by the temperature control in the standby state, no special control for transporting the sheet material is required, and the power consumption is small.

According to the fifteenth aspect, since the sheet material is conveyed without performing temperature control, power consumption is small.

According to the sixteenth aspect of the present invention, since the sheet material is not deteriorated by the processing liquid, the sheet material has durability and does not adversely affect the processing liquid in the processing tank.

According to the seventeenth aspect of the present invention, since the sheet material has wettability, the processing liquid can be effectively supplied to the transfer section by the sheet material.

According to the eighteenth aspect of the present invention, since the sheet material has a surface roughness, the processing liquid can be effectively supplied to the transfer section by the sheet material.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a photosensitive material processing apparatus.

FIG. 2 is a schematic configuration diagram of another embodiment of a photosensitive material processing apparatus.

FIG. 3 is a schematic configuration diagram of another embodiment of a photosensitive material processing apparatus.

FIG. 4 is a schematic configuration diagram of still another embodiment of the photosensitive material processing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Photosensitive material processing apparatus 2 Processing part 30 Transport means 40 Sheet material 41 Sheet material transport means P Photosensitive material

Claims (18)

[Claims] In a photosensitive material processing apparatus, a processing section for processing a photosensitive material has a processing tank for storing a processing solution and a conveying means for conveying the photosensitive material in the processing tank. A photosensitive material processing apparatus, comprising: a sheet material conveying means for conveying the sheet material into a processing tank, wherein the sheet material is conveyed at a predetermined timing by a conveying means of the processing unit. 2. A processing section for processing a photosensitive material, comprising: a processing tank for storing a processing solution; a drying section for drying the photosensitive material processed in the processing tank; and a transport means for transporting the photosensitive material. A photosensitive material processing apparatus, comprising: a sheet material transport unit that transports a sheet material to the processing unit, wherein the sheet material is transported at a predetermined timing by a transport unit of the processing unit. 3. The photosensitive material processing apparatus according to claim 1, wherein the sheet material is conveyed when the processing of the photosensitive material is not performed within a predetermined time. 4. The photosensitive material processing apparatus according to claim 1, wherein the sheet material is conveyed based on a dry state of a transition portion disposed between the processing tanks. 5. The photosensitive material processing apparatus according to claim 1, wherein the sheet material is conveyed based on a dry state of a squeeze section disposed before the drying section. 6. The apparatus according to claim 1, wherein said sheet material conveying means guides a sheet material at a standby position above said processing unit to a stage preceding said processing unit and returns to a standby position from a stage subsequent to said processing unit. The photosensitive material processing apparatus according to claim 5. 7. The photosensitive material processing apparatus according to claim 1, further comprising switching means for returning the sheet material to a standby position. 8. A photosensitive material processing apparatus according to claim 1, wherein said sheet material transporting means is provided inside an opening / closing lid which covers said processing section. 9. The sheet conveying device according to claim 1, wherein the sheet conveying device includes a sheet conveying mechanism for conveying the sheet material, and a driving device for driving the sheet conveying mechanism. The photosensitive material processing apparatus according to the above. 10. A photosensitive material processing apparatus according to claim 9, wherein said driving means drives said sheet conveying mechanism independently of driving means of said processing section. 11. A photosensitive material processing apparatus according to claim 9, wherein said sheet conveying mechanism is connectable to a driving means of said processing section via a clutch. 12. The photosensitive material processing apparatus according to claim 9, wherein said sheet transport mechanism is constituted by a single feed roller pair. 13. The sheet material can be stopped at least in the standby position, sent out to the transport path by the single feed roller pair, and returned from the transport path to the single feed roller pair. 13. The method according to claim 12, wherein
The photosensitive material processing apparatus according to the above. 14. The apparatus according to claim 1, wherein the processing section conveys the sheet material by controlling the temperature in a standby state.
The photosensitive material processing apparatus according to claim 13. 15. A photosensitive material processing apparatus according to claim 1, wherein said processing section conveys said sheet material without performing temperature control. 16. A photosensitive material processing apparatus according to claim 1, wherein said sheet material is not deteriorated by a processing liquid. 17. An apparatus according to claim 1, wherein said sheet material has wettability. 18. An apparatus according to claim 1, wherein said sheet material has a surface roughness.