JP2004170520A - Photosensitive material processing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a photosensitive material processing apparatus capable of varying and adjusting a processing time while keeping constant a speed of conveyance for dipping a photosensitive material in a processing liquid. <P>SOLUTION: A conveyance path for photosensitive material which is provided to a conveyance rack 24 arranged in a processing tank 10 in order to dip the photosensitive material 22 in the processing liquid while conveying it is switched by conveyance path switching means 58 and 60 between a long-time processing state in which the path is set long and a short-time processing state in which the path is set short. Development processing conditions for the photosensitive material 22 are made constant by varying only the processing time of the photosensitive material 22. Such trouble that the photosensitive material 22 is tensed or slackened owing to a difference in conveyance speed can be prevented on a conveyance path for passing the photosensitive material 22 to the conveyance rack 24 varying the processing time or a conveyance path for receiving it. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a photosensitive material processing apparatus that is immersed in a processing solution filled in a processing tank while transporting the photosensitive material, and in particular, a photosensitive material processing that can change and adjust the distance of the photosensitive material transport path in the processing tank. Relates to the device.
[0002]
[Prior art]
In general, a photosensitive material processing apparatus for forming an image on various photosensitive materials such as a silver salt photographic photosensitive material (color print) is used.
[0003]
In this photosensitive material processing apparatus, the exposed photosensitive material (color print) is conveyed for a predetermined distance at a predetermined speed, so that it is immersed in a developer in a color developing tank for a predetermined time and immersed in a bleach-fixing liquid in a bleach-fixing tank. Subsequently, the film is immersed in washing water in a washing tank, washed, and subjected to color development processing, bleach-fixing processing, and water washing processing in order to develop a color print.
[0004]
A conventional photosensitive material processing apparatus includes a film processor that can be processed quickly by changing and adjusting processing times of development, bleach-fixing, and washing with respect to the photosensitive material. In this rapid processing type film processor, the linear speed at which the photosensitive material is transported in the entire process of development processing, fixing processing and water washing processing in the rapid processing type film processor in accordance with the development time specified by the user in units of 1 second. Are adjusted and adjusted uniformly.
[0005]
In addition, although we searched prior art document information, we could not find appropriate prior art documents.
[0006]
[Problems to be solved by the invention]
The rapid processing type film processor as described above is a configuration that uniformly changes and adjusts the linear velocity for conveying the photosensitive material in the entire process of development processing, fixing processing, and water washing processing. Along with this, the fixing process time and the washing process time are also changed, which may cause insufficient fixing process and insufficient washing process.
[0007]
Therefore, this rapid processing type film processor changes and adjusts only the development processing time for the light-sensitive material, performs a fixed and sufficient fixing processing and water-washing processing while leaving the fixing processing time and the water-washing time as they are, and tests the light-sensitive material. Cannot be used to do.
[0008]
Further, if the development processing time is changed and adjusted by changing the linear speed at which the photosensitive material is conveyed in the development process, the image is transferred from the development process to the fixing process when the exposure process is carried into the development process. In this case, there is a disadvantage that the photosensitive material is pulled or the photosensitive material is slackened due to a change in the linear velocity for conveying the photosensitive material.
[0009]
Therefore, the photosensitive material processing apparatus is configured to change and adjust only the conveyance speed at the time of development processing for the photosensitive material, and to change and adjust the development processing time while keeping the conveyance speed at the time of fixing processing and the conveyance speed at the time of the water washing process. There is a problem that is difficult.
[0010]
In consideration of the above facts, the present invention has an object to provide a photosensitive material processing apparatus in which the processing time can be changed and adjusted while maintaining a constant conveying speed for immersing the photosensitive material in a processing solution.
[0011]
[Means for Solving the Problems]
The photosensitive material processing apparatus according to claim 1 of the present invention includes a processing tank in which a processing solution is stored, a transporting unit that is disposed in the processing bath and that transports the photosensitive material immersed in the processing solution, and a transporting unit. Transport path switching means for switching the length of the transport path.
[0012]
By configuring as described above, the conveyance path of the photosensitive material is changed by the conveyance path switching means while maintaining the operation state of conveying the photosensitive material at a constant speed so as to be immersed in the processing solution by the conveyance means arranged in the processing tank. By selectively switching to set the conveyance path to a long state or to set the conveyance path to a short state, it is possible to change only the processing time for the photosensitive material and make the development processing conditions for the photosensitive material constant.
[0013]
In addition, since the speed at which the photosensitive material is carried into the conveying means arranged in the processing tank and the speed at which the photosensitive material is carried out from the conveying means can be made constant, a conveying path switching means for changing this processing time can be provided. The provided conveying means can be smoothly conveyed without causing troubles such as pulling or loosening of the photosensitive material caused by the difference in conveying speed.
[0014]
According to a second aspect of the present invention, in the photosensitive material processing apparatus according to the first aspect, the conveying unit is configured to convey the photosensitive material by a plurality of conveying rollers, and the conveying path switching unit is configured to convey the conveying unit. A switching position for shortening the conveyance path by rolling the guide roller to a predetermined conveyance roller at a position where the conveyance path on the path can be switched to a shortcut is separated from the predetermined conveyance roller. Thus, the operation path is configured to be switched between the avoidance position and the avoidance position switched so as not to cause the transport path to be short-cut.
[0015]
With the configuration described above, in addition to the operation and effect of the photosensitive material processing apparatus according to claim 1, the conveyance path switching means is operated by the operation mechanism, and is in a position where the conveyance path can be switched to shortcut. When the guide roller is brought into rolling contact with the predetermined conveyance roller to shorten the conveyance path, the photosensitive material conveyed to the predetermined conveyance roller is conveyed around the predetermined conveyance roller by the guide roller. Since it is conveyed so as to shortcut the path, only the processing time for the photosensitive material can be changed short. Further, when the switching mechanism is operated with the operation mechanism and the guide roller is separated from the predetermined transport roller at a position where the transport path can be short-cut, and the transport path is used for a long time, the photosensitive material is Since it passes through the predetermined transport roller and is transported through the transport path that remains long, only the processing time for the photosensitive material can be kept long.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the photosensitive material processing apparatus of the present invention will be described with reference to FIGS. The photosensitive material processing apparatus of the present embodiment is configured as a test apparatus that tests the performance of the photosensitive material by changing the development processing time.
[0017]
In this photosensitive material processing apparatus, as shown in FIG. 1, a processing tank portion is taken out, and a development processing tank 10, a bleach-fixing processing tank 12, and a plurality (four in this embodiment) of washing processing tanks 14, 16, 18 and 20 are provided.
[0018]
In this photosensitive material processing apparatus, each processing tank 10, 12, 14, 16, 18, 20 is formed as a rectangular parallelepiped container having an open upper end surface. Further, the development processing tank 10 and the bleach-fixing processing tank 12 are formed in a container that is vertically longer than the plurality of water-washing processing tanks 14, 16, 18, and 20 to deepen the water depth, and each processing time is a relatively long predetermined time. It is comprised so that.
[0019]
A developing solution is placed in the developing tank 10. Further, a developing transport rack 24 that is a transporting means for transporting the photosensitive material 22 so as to be immersed in the developer is detachably disposed in the development processing tank 10. In the bleach-fixing processing tank 12, a bleach-fixing transport rack 26 for transporting the photosensitive material 22 so as to be immersed in the bleach-fixing processing solution is detachably disposed. Further, in order to convey the photosensitive material 22 so as to be immersed in the water washing processing liquid (water washing liquid) in each of the four water washing processing tanks 14, 16, 18, and 20, each corresponding water washing processing transport rack 28 is provided. Is detachably arranged.
[0020]
In the developing transport rack 24, a driven sprocket 44 is disposed at a position above the liquid level in the developing tank 10. The developing transport rack 24 is synchronized with the driven sprocket 44, and all the transport rollers 50 (the center in the width direction of the developing transport rack 24) arranged along the transport path for rolling contact with the photosensitive material 22 for transport. And a nip roller 50B arranged so as to be in rolling contact with both sides of the central roller 50A, and a nip roller 50B sandwiched between a pair of transport rollers. ) Is rotated in the transport direction.
[0021]
Further, a driven sprocket 46 is disposed in the bleach-fixing transport rack 26 at a position above the liquid level in the bleach-fixing processing tank 12. The bleach-fixing transport rack 26 is configured such that all the transport rollers 52 are rotated in the transport direction in synchronization with the driven sprocket 46.
[0022]
In addition, each water washing treatment rack 28 is provided with a driven sprocket 48 at a position above the liquid level in the corresponding plurality of water washing treatment tanks 14, 16, 18, 20. The washing rack 28 is configured so that all the conveyance rollers 54 are rotated in the conveyance direction in synchronization with the driven sprocket 48.
[0023]
As shown in FIG. 1, the photosensitive material processing apparatus is provided with a chain winding transmission mechanism 32 (34, 36, 38, 40, 42, 56) as a drive source for conveying the photosensitive material 22.
[0024]
The chain wrapping transmission mechanism 32 is configured to wrap the chain 40 around the sprockets 34, 36, and 38 arranged in a triangular shape, and to keep the tension of the chain 40 at a predetermined tension by the chain tensioner 42. Yes.
[0025]
Further, the chain winding transmission mechanism 32 is configured to run the chain 40 by rotationally driving the sprocket 34 with a processor drive motor 56.
[0026]
In this chain winding transmission mechanism 32, the chain 40 is divided into a driven sprocket 44 of the developing transport rack 24, a driven sprocket 46 of the bleach-fixing transport rack 26, and a driven sprocket 48 of each of the four washing treatment transport racks 28. Wrap around.
[0027]
Thus, in the photosensitive material processing apparatus, the developing transport rack 24, the bleach-fixing transport rack 26, and the water washing processing transport rack 28 are driven by the single chain winding transmission mechanism 32. Therefore, the photosensitive material 22 travels at a constant speed throughout the entire process when it passes through the developing transport rack 24, the bleach-fixing transport rack 26, and the water-washing processing rack 28.
[0028]
As shown in FIGS. 2 to 8, in this photosensitive material processing apparatus, a conveyance path switching means is provided for changing and adjusting the development processing time, which is the time for immersing the photosensitive material 22 in the developer in the development processing tank 10. Mounting. In order to constitute this transport path switching means, switching mechanisms 58 and 60 (62, 64, 66, 68, 70, 72) are mounted on the transport rack 24 for development. The transport path switching means is provided in the bleach-fixing transport rack 26 or the water-washing transport rack 28, which is another transport rack in the photosensitive material processing apparatus, so that the bleach-fixing processing time or the water-washing processing time can be changed and adjusted. You may do it.
[0029]
As shown in FIGS. 2 to 6, each switching mechanism 58, 60 is inserted so as to bridge the support shaft 62 between the shaft holes drilled at the corresponding predetermined positions on the both side plates of the developing transport rack 24. The both ends of the support shaft 62 are mounted so as to penetrate the shaft holes.
[0030]
One end portion of the support arm member 64 is fixedly disposed near each inner side of the both side plates of the developing transport rack 24 on the support shaft 62. The other end of each support arm member 64 is provided with a bearing 68 that supports the shaft end of the transport path switching guide roller 66 within the shaft hole. Between the bearing portions 68 of the bearing arm members 64 facing each other, a guide roller 66 is bridged so as to be supported so that the guide roller 66 can freely rotate. The guide roller 66 is configured by arranging a large number of small rollers on a shaft bar at equal intervals.
[0031]
The guide roller 66 mounted in this way is in a position where it can be switched so as to shortcut the transport path shown in FIG. 2 (a large-diameter central roller 50A located at the center in the width direction of the development transport rack 24). And a nip roller 50B arranged so as to be in rolling contact with both sides of the central roller 50A), and a switching position for shortening the conveyance path by rolling contact with the central roller 50A, and the conveyance path shown in FIG. It is possible to oscillate around the support shaft 62 as a rotation axis between the avoidance position separated from the predetermined central roller 50A at the position to switch the position so as not to shortcut the transport path.
[0032]
In addition, one end portion of the link member 70 is fixedly disposed near each outer side of both side plates of the developing transport rack 24 on the support shaft 62. At the other end of each link member 70, a shaft-like driven operation member 72 projects outwardly.
[0033]
Incidentally, pulleys 74 are attached to the driven operation members 72, respectively, and as shown in FIGS. 6 to 8, a ring-shaped tension spring 76 is wound around the pulleys 74, so that at the switching position shown in FIG. A configuration may be adopted in which each guide roller 66 is urged so as to be in pressure contact with a corresponding predetermined central roller 50A.
[0034]
In addition, in order to guide the photosensitive material 22 to be conveyed along a conveyance path set so as to be turned by the switching mechanism 58, 60 in a portion where the switching mechanism 58, 60 in the developing conveyance rack 24 is installed, As shown in FIG. 3, the conveyance guide 106 is installed in the vicinity of the central roller 50A with which the switching mechanisms 58 and 60 abut.
[0035]
As shown in FIGS. 4, 7, and 8, in this photosensitive material processing apparatus, the switching mechanism 58, 60 (62, 64, 66, 68, 70, 72) is automatically installed in order to constitute the transport path switching means. An automatic operation mechanism for switching to the development processing tank 10 side of the apparatus main body is disposed.
[0036]
In order to constitute this automatic operation mechanism, a drive motor 80 is installed on the frame member 78 of the apparatus main body. The drive motor 80 is composed of a torque motor, and is configured to automatically stop upon detection that a certain load is applied to the output shaft. The drive motor 80 may be configured by using various other motors and appropriately providing a limit switch or the like for automatically stopping the motor at a required timing.
[0037]
An input shaft 86 of a screw gear mechanism 84 that transmits a rotational force by changing the rotation direction to a right angle is connected to the output shaft of the drive motor 80 via a coupling 82.
[0038]
The tip of the output shaft 88 of the screw gear mechanism 84 extends to a position corresponding to the switching members 58 and 60 in the developing transport rack 24 mounted in the developing tank 10 in the depth direction of the developing tank 10. Has been.
[0039]
A drive-side screw gear 90 for transmitting the rotational force by changing the rotation direction to a right angle is fixed to the distal end portion of the output shaft 88. Driven side screw gears 92 and 94 are arranged on both sides of the drive side screw gear 90 so as to mesh with each other.
[0040]
These driven-side screw gears 92 and 94 are respectively attached to predetermined positions of the frame member 78. Further, operation claw members 96 and 98 are attached to the driven side screw gears 92 and 94, respectively, so as to rotate integrally.
[0041]
A connecting portion 100 formed in a substantially U-shaped groove opening upward is provided at a portion facing upward of each operation claw member 96, 98. At least one of the operation claw members 96 and 98 (in this embodiment, the left side in FIGS. 7 and 8) is provided with a stopper portion 102 that extends downward in a bar shape. It has been.
[0042]
Further, the frame member 78 is provided with a pin-like stopper member 104 for abutting and stopping when the operation claw member 96 reaches the switching position shown in FIG. At the same time, a pin-shaped stopper member 106 is provided on the frame member 78 so that the operation claw member 98 comes into contact with and stops when the avoidance position shown in FIG. 8 is reached.
[0043]
In the transport path switching means configured as described above, when the development transport rack 24 is set in the development processing tank 10, each driven mechanism in each switching mechanism 58, 60 installed on the development transport rack 24 side. The operation members 72 are fitted and connected to the connection portions 100 of the corresponding operation claw members 96 and 98, respectively, and the conveyance path switching means is set to be operable (completed state).
[0044]
The transport path switching means automatically switches the switching mechanisms 58 and 60 by the automatic operation mechanism when the transport path switching means is in an operably set state (completed state) to change the transport path in the development transport rack 24. Switch.
[0045]
For example, from the long-time developing state (long-time processing state) in which the switching mechanisms 58 and 60 shown in FIGS. 1 and 3 are at the avoidance position and the transport path of the development transport rack 24 is the longest, the switching mechanism shown in FIG. 58 and 60 are in the switching position, and when shifting to the short time development state (short time processing state) in which the transport path of the development transport rack 24 is the shortest, the automatic operation mechanism and the switching mechanisms 58 and 60 are It works as follows.
[0046]
In this photosensitive material processing apparatus, when a user operates a switch (not shown) for shifting to a developing state for a short time, as shown in FIGS. 4 to 6, the drive motor 80 is driven, and the rotational drive output thereof is a screw gear. It is transmitted through the mechanism 84, the drive side screw gear 90, the driven side screw gears 92, 94, etc., and the operation claw members 96, 98 are rotated from the state of FIG. 8 to the state of FIG. It hits the member 104.
[0047]
Then, since a large load generated by the rotation operation being stopped is transmitted to the drive motor 80, a control unit (not shown) of the photosensitive material processing apparatus applies a large load to the drive motor 80 that is greater than the predetermined load value. Is detected electrically, and the drive motor 80 is stopped.
[0048]
As the operation claw members 96 and 98 rotate, the driven operation members 72 of the switching mechanisms 58 and 60 fitted in the connection portions 100 rotate from the position shown in FIG. 8 to the position shown in FIG. Then, each guide roller 66 swings integrally with each support shaft 62 that rotates in conjunction with the operation and presses against a predetermined central roller 50A as shown in FIG. It is set to the shortest developing state that is the shortest.
[0049]
Next, the switching mechanisms 58 and 60 shown in FIGS. 1 and 3 are avoided from the short-time developing state where the switching mechanisms 58 and 60 shown in FIG. 2 are at the switching position and the transport path of the developing transport rack 24 is the shortest. When shifting to the long-time developing state where the transport path of the development transport rack 24 is at the longest position, the operation is executed in the reverse manner to the above.
[0050]
That is, in this photosensitive material processing apparatus, when a user operates a switch (not shown) for shifting to a development state for a long time, the drive motor 80 is driven, and the rotational drive output thereof is the screw gear mechanism 84 and the drive side screw gear 90. The operation claw members 96 and 98 are rotated from the state shown in FIG. 7 to the state shown in FIG. 8, and the stopper portion 102 hits the stopper member 106.
[0051]
Then, since a large load generated by the rotation operation being stopped is transmitted to the drive motor 80, a control unit (not shown) of the photosensitive material processing apparatus applies a large load to the drive motor 80 that is greater than the predetermined load value. Is detected electrically, and the drive motor 80 is stopped.
[0052]
As the operation claw members 96 and 98 rotate, the driven operation members 72 of the switching mechanisms 58 and 60 fitted in the connection portions 100 rotate from the position shown in FIG. 7 to the position shown in FIG. Then, each guide roller 66 swings integrally with each support shaft 62 that rotates in conjunction with the operation and retracts away from the predetermined center roller 50A, so that the transport path of the developing transport rack 24 is the longest. It is set to the developing state for a long time.
[0053]
This photosensitive material processing apparatus is configured such that the time during which the photosensitive material 22 is developed in the development processing tank 10 can be changed to a plurality of predetermined development processing times by using the conveyance path switching means.
[0054]
In this photosensitive material processing apparatus, the number of transport path switching means installed in the development transport rack 24 is set according to the number of predetermined development processing times to be set.
[0055]
For example, when this photosensitive material processing apparatus is configured to be able to switch between three predetermined development processing times, a transport path over the entire length of the development transport rack 24 is set corresponding to the longest predetermined development processing time. .
[0056]
Next, in this photosensitive material processing apparatus, a transport path switching means is installed at a predetermined intermediate position of the transport path of the development transport rack 24 corresponding to the second longest predetermined development processing time, and from the entrance of the development transport rack 24. The loaded photosensitive material 22 is folded back from the switching members 58 and 60 of the transport path switching means so that it can be transported from the outlet.
[0057]
Next, in this photosensitive material processing apparatus, the transport path switching means is installed at a predetermined intermediate position of the transport path of the development transport rack 24 corresponding to the third longest (shortest) predetermined development processing time. The photosensitive material 22 carried in from the entrance is folded back from the switching members 58 and 60 of the transport path switching means and can be carried out from the exit.
[0058]
In this photosensitive material processing apparatus, the transfer path switching means corresponding to the second longest predetermined development processing time and the transfer path switching means corresponding to the third longest (shortest) predetermined development processing time are appropriately switched. Thus, the development processing time is set to a desired development processing time and used.
[0059]
In this photosensitive material processing apparatus, the installation position of the conveyance path switching means installed in the development conveyance rack 24 is set according to the length of the predetermined development processing time to be set. That is, in this photosensitive material processing apparatus, the photosensitive material 22 is immersed in the developer in the development processing tank 10 for a predetermined distance obtained by multiplying the predetermined development processing time set by switching by the conveyance speed of the photosensitive material 22. The installation position of the conveyance path switching means provided in the development conveyance rack 24 is set so as to be conveyed in a state.
[0060]
Next, the operation and operation of the photosensitive material processing apparatus according to the present embodiment configured as described above will be described.
[0061]
In this photosensitive material processing apparatus, by changing the transport path of the development transport rack 24 disposed in the development processing tank 10 shown in FIG. At the same time, in this photosensitive material processing apparatus, all the transport rollers 50 of the development transport rack 24 and all of the transport rollers 52 of the bleach-fixing transport rack 26 are interlocked with the chain winding transmission mechanism 32, and four pieces. The photosensitive material 22 transports the developing transport rack 24, the bleach-fixing transport rack 26, and the water-washing transport rack 28 by simultaneously rotating and driving all the transport rollers 50 in the water cleaning transport rack 28. The process is executed at a constant linear velocity.
[0062]
In this photosensitive material processing apparatus, for example, when a test is performed in a short-time development state in which the transport path of the development transport rack 24 is shortened, the transport path switching means of the development transport rack 24 is operated to switch. The operation is performed in a state where the mechanisms 58 and 60 are set at a switching position for shortening the conveyance path.
[0063]
In this photosensitive material processing apparatus, an exposure process for forming, for example, a test sensitometric latent image on the photosensitive material 22 is performed on the photosensitive material 22 by an exposure apparatus (not shown) on the upstream side of the transport path of the photosensitive material 22 from the development processing tank 10.
[0064]
The exposed photosensitive material 22 is carried from the entrance of the development processing tank 10 so as to be immersed in the developer by the transport roller 50 of the development transport rack 24 and transported to the lower side of the development processing tank 10 along the transport path. Then, the switching mechanisms 58 and 60 reach the central roller 50A where they are in rolling contact with each other.
[0065]
Then, the photosensitive material 22 is guided by the switching mechanisms 58 and 60 and the transport guide 106 and is transported by changing the transport direction upward so as to go around the central roller 50 </ b> A, and reaches the outlet of the development transport rack 24. .
[0066]
That is, since the photosensitive material 22 is conveyed so as to be folded back from the middle of the entire conveyance path of the development conveyance rack 24, the conveyance distance is shortened, and the development time which is the time during which the developer in the development processing tank 10 is conveyed. Is also a predetermined short time.
[0067]
The photosensitive material 22 is carried into the bleach-fixing transport rack 26 from the exit of the development transport rack 24 through the crossover rack portion while maintaining a constant transport speed, and bleached in the bleach-fixing processing tank 12 by the transport roller 52. After being transported through the fixing processing solution and processed for a certain period of time, it reaches the exit of the bleach-fixing transport rack 26. Therefore, in this photosensitive material processing apparatus, when the photosensitive material 22 is delivered from the development processing tank 10 to the bleach-fixing processing tank 12, the photosensitive material 22 is pulled or loosened due to the difference in the conveyance speed. It is possible to prevent inconvenience.
[0068]
As described above, in this photosensitive material processing apparatus, the photosensitive material 22 is quickly carried into the bleach-fixing processing tank 12 from the development processing tank 10 through the crossover rack portion, and therefore after the photosensitive material 22 has exited the developer. The out-of-liquid time required for the movement until entering the bleach-fixing processing solution can be shortened. Therefore, the photosensitive material 22 can be shortened in the state where the photosensitive material 22 is taken out of the development processing tank 10 and the developer is attached to the surface thereof, so that stable development processing can be performed.
[0069]
The photosensitive material 22 subjected to the bleach-fixing process passes through the crossover rack portion and is carried into the washing rack 28 and is conveyed through the washing water in the washing tank 14 by the conveying roller 54. In the same manner from the outlet of the water washing treatment tank 14, it is carried into the next water washing treatment tank 16 to be washed with water, carried into the next water washing treatment tank 18 and subjected to the water washing treatment, and the next water washing. It is carried into the processing tank 18 and washed with water, then carried into the next washing process tank 20 and washed with water, and then carried into the drying section of the photosensitive material 22 (not shown) and dried, and a sensitometric image for testing. The finished product is formed.
[0070]
As described above, in this photosensitive material processing apparatus, each liquid processing is performed while transporting the photosensitive material 22 at a constant speed. Therefore, even if the development processing time is shortened, the bleach-fixing processing time, the water washing processing time, Can be kept for a certain time.
[0071]
That is, in this photosensitive material processing apparatus, it is possible to execute an appropriate test for the photosensitive material 22 under a certain condition in which only the development processing time is shortened and other processing conditions are not changed.
[0072]
Next, a description will be given of the case where the photosensitive material processing apparatus is set to a test for a long time in which the transport path of the development transport rack 24 is long and the test is performed.
[0073]
In this long-time development state, the operation is performed in a state where the switching mechanisms 58 and 60 are set at the avoidance position separated from the central roller 50A by operating the transport path switching means of the development transport rack 24.
[0074]
When this photosensitive material processing apparatus is set in a development state for a long time, the photosensitive material 22 subjected to the exposure processing is carried from the entrance of the development processing tank 10 so as to be immersed in the developer by the transport roller 50 of the development transport rack 24. Then, the direction change conveyance roller 50 at the lowermost portion of the development processing tank 10 is reached along the conveyance path.
[0075]
Then, the photosensitive material 22 is guided by the direction-conversion transport roller 50 and transported with the transport direction changed upward, and reaches the exit of the development transport rack 24.
[0076]
That is, when the photosensitive material processing apparatus is set in a developing state for a long time, the photosensitive material 22 is transported through the entire transport path of the developing transport rack 24, so that the transport distance becomes long and the developer in the developing tank 10 is in the developing solution. The developing time, which is the time during which the toner is conveyed, is also a predetermined long time.
[0077]
Thereafter, the photosensitive material 22 is maintained in a constant conveyance speed, and the bleach-fixing processing tank 12 and the plurality of washing processing tanks 14 and 16 are set in the same manner as in the case where the photosensitive material processing apparatus described above is set in a short-time developing state. , 18 and 20 are carried, and predetermined liquid processing is executed.
[0078]
In the above-described embodiment, the configuration of the transport path switching unit that switches the transport path shortly in the developing transport rack 24 that transports the photosensitive material 22 using the plurality of transport rollers 50 has been described. The path switching means may be any means that uses a guide plate so long as it can be switched to shorten or lengthen the transport path in the configuration of the transport path for transporting the photosensitive material 22 at a constant speed. Of course, it may be configured as follows.
[0079]
【The invention's effect】
The photosensitive material processing apparatus of the present invention has an effect that the processing time can be changed and adjusted while keeping the conveying speed constant because the photosensitive material is immersed in the processing solution.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing a portion where each processing solution tank is arranged in a photosensitive material processing apparatus according to an embodiment of the present invention.
FIG. 2 is an enlarged schematic configuration view of a main part showing a portion where a developing processing tank and a bleach-fixing processing tank in a short time development state are arranged in the photosensitive material processing apparatus according to the embodiment of the present invention;
FIG. 3 is an enlarged schematic configuration diagram of a main part showing a portion where a development processing tank and a bleach-fixing processing tank in a long-time development state are arranged in the photosensitive material processing apparatus according to the embodiment of the present invention;
FIG. 4 is an enlarged cross-sectional view showing a main part of a conveyance path switching unit arranged in a development processing tank in the photosensitive material processing apparatus according to the embodiment of the present invention.
FIG. 5 is an enlarged cross-sectional view showing a main part of a conveyance path switching unit arranged in a development processing tank in the photosensitive material processing apparatus according to the embodiment of the present invention.
FIG. 6 is an enlarged schematic perspective view of a main part extracted from a main part of a transport path switching unit disposed in a developing tank in the photosensitive material processing apparatus according to the embodiment of the present invention.
FIG. 7 is an enlarged schematic front view of the main part showing the main part in a state in which the automatic operation mechanism arranged on the development processing tank side in the photosensitive material processing apparatus according to the embodiment of the present invention sets the switching mechanism to the switching position. .
FIG. 8 is an enlarged schematic front view of the main part showing the main part in a state in which the automatic operation mechanism arranged on the development processing tank side in the photosensitive material processing apparatus according to the embodiment of the present invention sets the switching mechanism to the avoidance position. .
[Explanation of symbols]
10 Development processing tank
12 Bleach fixing tank
14 Washing tank
16 Washing tank
18 Washing tank
20 Water washing tank
22 Photosensitive materials
24 Development transport rack (conveyance means)
26 Transport rack for bleach-fixing (transport means)
28 Transport rack for water washing treatment (transport means)
32 Chain winding transmission mechanism (drive source)
50 Conveyance roller
52 Transport roller
54 Transport roller
56 Processor drive motor
58 Switching mechanism
62 Spindle
64 Bearing arm member
66 Guide roller
70 Link member
72 Driven operation member
80 Drive motor
84 Screw gear mechanism
90 Drive side screw gear
92 Driven side screw gear
94 Driven side screw gear
96 Operation claw member
98 Operation claw member
100 connections

Claims (2)

A treatment tank in which a treatment liquid is stored;
A conveying means disposed in the processing tank and dipping and conveying the photosensitive material in the processing solution;
A transport path switching means for switching the length of the transport path formed by the transport means;
A photosensitive material processing apparatus comprising: The predetermined transport is configured such that the transport unit is configured to transport the photosensitive material by a plurality of transport rollers, and the transport path switching unit is switched to shortcut the transport path on the transport path of the transport unit. A switching position for rolling the guide roller against the roller to shorten the conveyance path, and an avoidance position for switching the guide roller away from the predetermined conveyance roller so that the conveyance path is not short-cut. The photosensitive material processing apparatus according to claim 1, wherein the photosensitive material processing apparatus is configured to be switched by an operation mechanism.

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