JPH06273909A - Photosensitive material processing device - Google Patents

Abstract

PURPOSE:To reduce the damage of a photosensitive material when the material is not smoothly transported. CONSTITUTION:The switch 92 of a relay 90 is turned on, and a carrier roller provided in the processing tank of a photosensitive material processing device is driven by a motor 54. When the photosensitive material is not smoothly transported, a load is imposed on the motor 54, a current flowing through the motor 54 is increased, and a voltage level is raised at point A. The voltage level is amplified by an operational amplifier 104, converted to digital data by an A/D converter 110 and outputted to a controller 100. Whether the inputted data are above the predetermined value or not is repeatedly judged by the controller 100 while the motor 54 is driven. When the load on the motor 54 is affirmed by the judgement, the switch 92 of the relay 90 is turned off, and the motor 54 is stopped.

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, and more particularly to a processing tank for storing a processing solution for processing a photosensitive material, which conveys and processes the photosensitive material so that it is immersed in the processing solution. The present invention relates to a photosensitive material processing device.

[0002]

2. Description of the Related Art An automatic processor is provided with a plurality of processing tanks for storing a processing solution such as a developing solution, and a rack provided with a conveying roller and a guide in each processing tank. Are arranged respectively. The conveying roller is rotated by the driving force of a driving unit such as a motor being transmitted, and the photosensitive material is sequentially conveyed into each processing tank and immersed in each processing solution to perform processing such as development. By the way, in an automatic developing machine, in particular, when the leading end portion of the photosensitive material is guided into each processing tank, conveyance failure, so-called jam may occur. If the photosensitive material is conveyed by continuing the rotation of the conveying roller even after the conveyance failure occurs, the photosensitive material may be damaged due to the friction between the photosensitive material and the conveying roller.

For this reason, sensors for mechanically or optically detecting the passage of the photosensitive material are provided at the entrance side and the exit side of the processing tank, and the passage time of the processing tank is preliminarily set when the conveyance failure does not occur. If the sensor on the inlet side does not detect the passage of the photosensitive material even if the passage time has passed after the sensor on the inlet side detects the passage of the photosensitive material, it is determined that the conveyance failure of the photosensitive material has occurred. However, it has been proposed to stop the conveyance of the photosensitive material (see Japanese Patent Laid-Open No. 3-150885).

However, in the above-described detection based on the passage time, it is not possible to determine whether or not a conveyance failure has occurred until the passage time measured in advance elapses. Therefore, the conveyance cannot be stopped in a short time after the conveyance failure of the photosensitive material occurs, and particularly when the conveyance failure occurs at a portion near the entrance side of the processing tank, the photosensitive material is seriously damaged. There was an occasion.

Further, in the above-mentioned detection method, it is necessary to provide a large number of sensors in order to detect the defective conveyance of the photosensitive material in a short time after the defective conveyance occurs, which increases the cost. There is a problem of doing. Furthermore, if a general sensor is installed in the processing tank, the sensor may be invaded by the processing solution and may be damaged due to corrosion and other inconveniences may occur. You cannot do it. Further, a sensor having a structure that prevents corrosion and the like is expensive.

Further, since the time for immersing the photosensitive material in each processing solution is predetermined, if the state where the photosensitive material is immersed in the processing solution is continued due to the conveyance failure of the photosensitive material, each The photosensitive material is damaged due to excessive processing. In addition, the operator must expose the inside of the automatic developing machine in order to eliminate the problem of poor conveyance, but when this operation is performed, the photosensitive material remains in each processing tank. There is a case where the stagnant photosensitive material is unnecessarily exposed to light and damaged.

The present invention has been made in consideration of the above facts, and an object thereof is to obtain a photosensitive material processing apparatus capable of reducing damage to the photosensitive material when a defective conveyance of the photosensitive material occurs. .

[0008]

In order to achieve the above object, the invention according to claim 1 is a processing tank for storing a processing solution for processing a photosensitive material, and the photosensitive material is immersed in the processing solution in the processing tank. Driving means for driving the conveying means for conveying the photosensitive material to be processed and processed, detecting means for detecting the load applied to the driving means, and the magnitude of the load detected by the detecting means is equal to or larger than a predetermined value. In this case, the control means for stopping the transportation of the photosensitive material by the transportation means is included.

According to a second aspect of the present invention, a plurality of processing tanks for storing a processing solution for processing the photosensitive material, a stock section provided in the preceding stage of the processing tank for stocking the photosensitive material, and the inside of the plurality of processing tanks are provided. And a plurality of transporting means for transporting the light-sensitive material so that the light-sensitive material is soaked in the processing liquid in the processing tank and processed, and the driving force of the driving means for each of the plurality of transporting means. Transmission means capable of transmitting or stopping transmission independently, detection means for detecting occurrence and occurrence position of defective conveyance of photosensitive material, and detection of defective conveyance of photosensitive material by the detection means The transmission of the driving force to the conveying means arranged in the processing tank corresponding to the generation position is stopped, and the photosensitive material located on the upstream side of the generation position is provided on the upstream side of the generation position. Stock It is configured to include a control means for conveying to the inner and.

[0010]

According to the first aspect of the invention, the load applied to the driving means is detected, and when the magnitude of the detected load is equal to or larger than a predetermined value, the conveyance of the photosensitive material by the conveying means is stopped. The magnitude of the load applied to the drive means can be detected by detecting the value of the current flowing through the motor when the drive means is a motor, for example. When the defective conveyance of the photosensitive material occurs, the photosensitive material becomes a resistance to the conveying operation of the conveying means, and this resistance is applied to the driving means as a load. Therefore, by determining whether or not the magnitude of the load applied to the driving means is equal to or larger than a predetermined value, it is possible to determine whether or not a defective conveyance of the photosensitive material has occurred. In addition, since a load is immediately applied to the driving unit when the conveyance failure occurs, it is possible to detect the conveyance failure of the photosensitive material in a short time and stop the conveyance of the photosensitive material.

Therefore, it is possible to prevent damage to the photosensitive material by continuing the transportation of the photosensitive material even after the defective conveyance occurs, and it is possible to reduce damage to the photosensitive material. In addition to stopping the conveyance by the conveying means, an alarm may be issued to notify the operator that a conveyance failure has occurred.

According to the second aspect of the present invention, a stock section for stocking the photosensitive material is provided in the preceding stage of the processing tanks, and a driving means is provided by a transmission means to a plurality of conveying means arranged in each processing tank. The driving force can be independently transmitted or stopped. Then, when the detection means detects the occurrence of the defective conveyance of the photosensitive material, the transmission of the driving force to the conveyance means arranged in the processing tank corresponding to the position where the defective conveyance occurs is stopped and The photosensitive material located on the upstream side is conveyed into the stock section provided on the upstream side of the generation position.

Therefore, it is possible to prevent damage to the photosensitive material having the poor conveyance by continuing the transportation, and for the photosensitive material located at the rear side of the position where the poor conveyance occurs. The transport is continued and processed as usual. Further, since the photosensitive material located on the upstream side of the generation position is guided into the stock portion provided on the upstream side of the generation position, the photosensitive material is held in a state of being immersed in the processing liquid. It will not be damaged by excessive treatment. If the stock section is set as a dark room, even if the operator exposes the inside of the photosensitive material processing apparatus in order to eliminate the conveyance failure, the photosensitive material is prevented from being damaged by being exposed to light.

[0014]

Embodiments of the present invention will now be described in detail with reference to the drawings.

[First Embodiment] FIG. 1 shows a photosensitive material processing apparatus 10 according to the first embodiment. The photosensitive material processing apparatus 10 includes a color developing tank 1 inside a casing 12.
4, bleach-fixing tank 16, washing tanks 18, 20, 22 (hereinafter,
These are collectively referred to as a processing tank) and a drying unit 24 are sequentially arranged, and a developing solution, a bleach-fixing solution, and washing water are stored in each processing tank. Further, racks 28, 30, 32, 34, 36 are arranged in the respective processing tanks so as to be immersed in the respective processing solutions. The photosensitive material 26 processed by the photosensitive material processing device 10 has a long shape, and is inserted into the photosensitive material processing device 10 through the insertion opening 18A provided in the casing 12, and each processing is performed by the rack described above. After being sequentially transported into the bath and immersed in the treatment liquid for treatment, hot air generated by a fan and a heater (not shown) is blown in the drying unit 24 to be dried, and then discharged through the discharge port 12B.

A rack 28 installed in the color developing tank 14.
Is provided with conveying rollers 38 and 40 having a slightly larger diameter, which are arranged at predetermined intervals in the vertical direction.
The rotary shafts 8 and 40 are supported by a pair of side plates 28A and 28B (see FIG. 2). As shown in FIG. 2, one of the rotation shafts of the transport rollers 38, 40 (on the front side in FIG. 2) extends along the axial direction and penetrates the side plate 28A.
Gears 42 and 44 are fixed to the ends, respectively. Gear 4
2, 44 are gears 4 rotatably supported by the side plate 28A.
It meshes with 6. The gear 42 is in mesh with a drive gear 48 rotatably supported by the side plate 28A. The rotation shaft of the drive gear 48 extends toward the outside of the rack 28, and a sprocket 50 is fixed to the tip end portion thereof.

A chain 52 is wound around the sprocket 50. The chain 52 is a motor 54 as a driving means.
It is also wound around the sprocket 51 fixed to the drive shaft 50A, and when the motor 54 is driven to rotate the drive shaft 50A, the driving force of the motor 54 is applied to the sprocket 50.
To rotate the sprocket 50. As the sprocket 50 rotates, the drive gear 48, the gears 42, 4
6, 44 are rotated, and the transport rollers 38, 40 are rotated. On the other hand, the side plate 28 is provided diagonally above the transport roller 38.
Conveying rollers 56 and 58 that are axially supported between A and 28B are provided. One end of the rotary shafts of the transport rollers 56 and 58 penetrates the side plate 28A, and the gears 60 and 6 are provided at the tips thereof.
2 is stuck. These gears 60 and 62 are also drive gears 4
8 and is rotated with the rotation of the drive gear 48, and the transport rollers 56 and 58 are rotated.

Further, in the vicinity of the transport rollers 56 and 58,
Driven rollers 64 and 66 are provided so as to contact the outer circumferences of the transport rollers 56 and 58, respectively. Driven roller 64,
66 is rotatably supported between the side plates 28A and 28B, and is rotated with the rotation of the conveying rollers 56 and 58.
Further, driven rollers 68 and 70 are provided near the transport roller 38 so as to contact the outer circumference of the transport roller 38, and driven rollers 68 and 70 are disposed near the transport roller 40 so as to contact the outer circumference of the transport roller 40. 72 and 74 are provided. These driven rollers 68, 70, 72, 74 are also rotatably supported between the side plates 28A, 28B and are rotated as the transport rollers 38, 40 rotate.

Further, obliquely below the carrying roller 40, the carrying rollers 76, 78 pivotally supported between the side plates 28A, 28B.
Is provided. One ends of the rotation shafts of the transport rollers 76 and 78 penetrate the side plate 28A, and the gears 8 are provided at the tip ends thereof.
0 and 82 are fixed. The gears 80 and 82 are in mesh with a gear 84 that is rotatably supported by the side plate 28A, and the gear 84 is in mesh with the gear 44. Therefore, the rotation of the drive gear 48 is also transmitted to the transport rollers 76 and 78, and the transport rollers 76 and 78 are also rotated in accordance with the driving of the motor 54. Further, driven rollers 86 and 88 are arranged near the transport rollers 76 and 78 so as to contact the outer circumferences of the transport rollers 76 and 78, respectively. Driven rollers 86, 8
8 is rotatably supported between the side plates 28A and 28B, and is rotated with the rotation of the transport rollers 76 and 78.
Further, a guide (not shown) for guiding passage of the photosensitive material 26 is provided between the rollers of the rack 28.

A rack 30 arranged in the bleach-fixing tank 16
Since it has the same structure as the rack 28 described above, the description thereof will be omitted, but the chain 52 described above is wound around the sprocket 50. Also, the washing tanks 18 and 2
For the racks 32, 34, and 36 arranged in the Nos. 0 and 22, the large-diameter transport roller 40, the driven rollers 72 and 74 and the gears 44 and 46 that contact the outer circumference of the transport roller 40.
It has the same structure as the rack 28 except that the chain 52 is omitted, and the chain 52 is attached to the sprocket 50 as described above.
Is wrapped around. Therefore, when the motor 54 is driven and the sprocket 51 is rotated, the driving force of the motor 54 is transmitted and the racks 28, 30 arranged in the respective processing tanks are
The sprocket 50 of 32, 34, 36 is rotated, and each drive roller is rotated.

As shown in FIG. 3, one end of the motor 54 is
It is connected to one terminal of a switch 92 of the relay 90, and the other end of the motor 54 is grounded via a resistor 96 for current detection. The other terminal of the switch 92 is connected to a power source (not shown). The exciting coil 94 of the relay 90 has one end grounded and the other end connected to the driver 98. The driver 98 is connected to the control device 100, and energizes the excitation coil 94 to excite the excitation coil 94 or stop the excitation according to an instruction from the control device 100. The switch 92 of the relay 90 is
The exciting coil 94 is off in a non-excited state, and when the exciting coil 94 is excited, the contact is switched and turned on. When the switch 92 is turned on, electric power is supplied to the motor 54 via a power source (not shown) and the switch 92, and the motor 54 is driven.

On the other hand, the other end of the motor 54 and the resistor 96 (point A shown in FIG. 3) is connected to the non-inverting input terminal of the operational amplifier 104 via the resistor 102. The inverting input terminal of the operational amplifier 104 is grounded via the resistor 106. The output terminal of the operational amplifier 104 is connected to the inverting input terminal via the feedback resistor 108. The output terminal of the operational amplifier 104 is the A / D converter 11
0 is connected to the input terminal of the A / D converter 110
The output end of is connected to the control device 100.

The control device 100 includes a microcomputer and the like. An alarm 112 is connected to the control device 100, and the alarm 112 is activated when an abnormality such as a defective conveyance of the photosensitive material 26 occurs.

Next, the operation of the first embodiment will be described with reference to the flowchart of FIG. The flowchart of FIG. 4 is executed when the photosensitive material is inserted into the photosensitive material processing apparatus 10.

In step 150, the exciting coil 94 is excited through the driver 98 and the switch 92 is turned on.
As a result, the motor 54 is driven, the driving force is transmitted to the transport rollers of the racks 28, 30, 32, 34, 36 via the chain 52, and the transport rollers are rotated. As a result, the leading end of the photosensitive material 26 is first conveyed by the conveyance roller 58.
It is nipped by the driven roller 66 and is moved downward in the developing tank 14, and is further moved downward by being nipped by the transport roller 38 and the driven roller 70 and between the transport roller 40 and the driven roller 74. Next, the front end portion of the photosensitive material 26 is sandwiched between the transport roller 78 and the driven roller 88, the transport direction is reversed by a guide (not shown), and the leading end portion of the photosensitive material 26 is sandwiched between the transport roller 76 and the driven roller 86 and transported upward. It

After that, the leading end portion of the photosensitive material 26 is nipped between the conveying roller 40 and the driven roller 72, and the conveying roller 38 and the driven roller 68, and further conveyed upward. During this time,
The photosensitive material 26 is immersed in the developing solution stored in the developing tank 14 and subjected to a developing process. Next, the leading end of the photosensitive material 26 is nipped by the feeding roller 56 and the driven roller 64 and fed, and the feeding direction is reversed by a guide provided on a crossover rack (not shown), and the rack 2
It is nipped by a conveyance roller and a driven roller provided on the entrance side of 8. In this way, the photosensitive material 26 is sequentially guided into each processing bath and immersed in each processing solution for processing.

In the next step 152, the data input via the A / D converter 110 is compared with a predetermined value determined in advance, and it is determined whether the value is equal to or more than the predetermined value. The data input via the A / D converter 110 is the motor 54
3 is a value obtained by amplifying the potential level at point A in FIG. 3 corresponding to the value of the current flowing through and converting it into digital data. By determining whether this value is greater than or equal to a predetermined value, the motor 54
It is possible to determine whether or not the load applied to is greater than or equal to a predetermined value.

Step 152 is repeated until the determination is affirmative, during which the motor 54 is driven and the photosensitive material 26 is driven.
The process of is continued. On the other hand, for example, when the leading end of the photosensitive material 26 is not properly guided and conveyance failure of the photosensitive material 26 occurs, the photosensitive material 26 is stagnant at the portion where the conveyance failure occurs, so that the conveyance roller The photosensitive material 26 becomes a resistance against the rotation, and a large load is instantaneously applied to the motor 54. As a result, the current flowing through the motor 54 becomes large, so that the voltage level at the point A in FIG. 3 becomes high, and this high voltage level is converted into large-value digital data via the operational amplifier 104 and the A / D converter 110. It is input to the control device 100. In this case, the determination in step 152 is affirmed.

When the determination at step 152 is affirmative, the routine proceeds to step 154, where the driving of the motor 54 is stopped.
As a result, the rotation of the transport rollers of the racks 28, 30, 32, 34, 36 is stopped, and damage to the photosensitive material 26 is prevented. In the next step 156, the alarm 112 is activated. As a result, the operator can recognize that the defective conveyance of the photosensitive material 26 has occurred, and take measures to eliminate the defective conveyance by exposing the inside of the photosensitive material processing apparatus 10.

As described above, in the first embodiment, the motor 54
The load applied to the motor 54 is detected by detecting the current flowing through the motor 54. When the magnitude of the load exceeds a predetermined value, the driving of the motor 54 is stopped and the conveyance of the photosensitive material 26 is stopped. Even when a conveyance failure of the photosensitive material 26 occurs in the liquid or in a portion near the photosensitive material entering side of the processing tank, the driving of the motor 26 can be stopped in a short time, and the photosensitive material 26 is damaged. Can be minimized.

Although the load applied to the motor 54 is detected by detecting the current flowing through the motor 54 in the present embodiment, the present invention is not limited to this. For example, when a defective conveyance of the photosensitive material occurs, the torque of the motor changes. Therefore, the load applied to the motor may be detected by detecting the torque of the motor.

Further, a passage sensor or the like for detecting passage of the photosensitive material 26 may be provided at a plurality of locations on the conveying path of the photosensitive material 26 so as to detect the location where the defective conveyance of the photosensitive material has occurred.

Further, as the motor 54, a DC (direct current) motor such as a brushless motor or a stepping motor, or a synchronous or asynchronous AC (alternating current) motor can be applied.

[Second Embodiment] Next, a second embodiment of the present invention will be described. The same parts as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted. As shown in FIG. 5, in the photosensitive material processing apparatus 120 of the second embodiment, a bottomed stock section 122 is provided between the color developing tank 14 and the bleach-fixing tank 16. The stock portion 122 has an open upper portion and is capable of accommodating a predetermined amount of the photosensitive material 26. Further, the stock portions 124 and 12 similar to the above are provided between the bleach-fixing tank 16 and the washing tank 18, between the washing tank 18 and the washing tank 20, and between the washing tank 20 and the washing tank 22, respectively.
6, 128 are provided. The photosensitive material processing apparatus 1
Reference numeral 20 denotes a large number of photosensitive materials 2 cut into a predetermined length.
6 are sequentially inserted.

A lid portion 130 is provided on the upper portion of the stock portion 122 so as to correspond to the opening. Lid 130
Is rotatable about the rotating shaft 130A,
The inside and the outside of the stock portion 122 are shielded from light while being rotated to the position shown by the solid line in FIG. Further, when it is rotated to the position shown by the broken line in FIG. 5, the upper end of the lid 130 blocks the conveyance path of the photosensitive material 26 from the color developing tank 14 to the bleach-fixing tank 16. The lid 130 is rotated by an actuator 138A (see FIG. 7) connected to the control device 100 to a position shown by a solid line in FIG. 5 or a position shown by a broken line in accordance with an instruction from the control device 100. Lids 132, 134, 136 are also provided on top of the stock portions 124, 126, 128, respectively. Also for these lids 132, 134, 136, the control device 10
Actuators 138B, 138C, 1 connected to 0
38D (see FIG. 7), it is rotated to the position shown by the solid line or the position shown by the broken line.

An inlet sensor 140A is provided on the photosensitive material inlet side of the color developing tank 14, and an outlet sensor 142A is provided on the outlet side thereof. Each of the entrance sensor 140A and the exit sensor 142A includes a light-emitting element that emits light having a wavelength in the infrared region, which is outside the sensitivity region of the entertainment material 26, and a light-receiving element that has sensitivity to the light having the infrared wavelength. It is arranged so as to face each other across the conveyance path, and it is possible to detect the presence or absence of passage of the photosensitive material 26 at the arrangement site based on the amount of light received by the light receiving element. Entrance sensor 14
The 0A and the outlet sensor 142A are each connected to the control device 100. In addition, bleach-fixing tank 16, washing tank 18, 2
The entrance sensor 14 is also provided on the entrance side and the exit side of the photosensitive materials 0 and 22.
0B to 140E and outlet sensors 142B to 142E are provided to detect passage of the photosensitive material 26 at the respective installation sites.

On the other hand, as shown in FIG. 6, the sprocket 50 of the rack 28 around which the chain 52 is wound is connected to the drive gear 48 via the electromagnetic clutch 144A. The electromagnetic clutch 144A is connected to the control device 100 (see FIG. 7), and transmits the rotation of the sprocket 50 to the drive gear 48 or stops the transmission according to an instruction from the control device 100. When the electromagnetic clutch 144A stops transmitting the rotation, the driving force is not transmitted to the respective conveying rollers of the rack 28 even if the motor 54 is driven, and the photosensitive material 26 is not conveyed.

The sprocket 50 of the other racks 30, 32, 34, 36 wound around the chain 52 is also electromagnetic clutches 144A, 144B, 144, respectively.
C, 144D and 144E are connected. The electromagnetic clutches 144A to 144E are connected to the control device 100, and transmit the driving force or stop the transmission of the driving force according to an instruction from the control device 100.

Next, the operation of the second embodiment will be described with reference to the flowchart of FIG. In step 170, as an initial setting, the electromagnetic clutch 14 is set so that the rotation of the sprocket 50 of each rack is transmitted to the transport rollers of each rack.
4A, 144B, 144C, 144D, 144E, and stock parts 122, 124, 126, 12
The lids 130, 132,
Rotate 134 and 136. In step 172, the motor 54 is driven to rotate the transport roller of each rack, and the transport of the photosensitive material 26 in all the processing tanks is started.

At the next step 174, it is determined whether or not the timer has timed out. It should be noted that this timer is started in a step described later. In the next step 176,
It is determined whether or not the entrance sensor 140 provided in any one of the processing tanks detects the passage of the front end portion of the photosensitive material 26. If the determination in step 176 is negative, step 17
4, the processes of steps 172 to 176 are repeated until the determination of step 176 becomes affirmative.

When the front end of the photosensitive material 26 reaches the entrance side of any of the processing tanks, the amount of light received by the light receiving element of the corresponding entrance sensor 140 is drastically reduced, and the portion where the entrance sensor is arranged is moved to the photosensitive material 26. It is determined that the tip of the has passed. In this case, the determination in step 176 is affirmative, and step 1
The timer is started at 78 and the process returns to step 174.
In this embodiment, the time for the photosensitive material 26 to pass through each processing tank (processing time of the photosensitive material in each processing tank) is measured in advance. In this step, the timer is set as a timer value and the corresponding inlet sensor is The processing time of the processing tank in which the passage of the front end of the photosensitive material 26 is detected is set. When this timer times out, the affirmative determination is made in step 174, and the process proceeds to step 180.

In step 180, it is determined whether or not the exit sensor 142 provided in the corresponding processing tank has detected the passage of the photosensitive material 26. When passage of the photosensitive material 26 is detected by the exit sensor 142 almost at the same time when the timer times out, the determination in step 180 is affirmed. In this case, it can be determined that the photosensitive material 26 has passed through the processing tank without causing defective conveyance, and the process returns to step 174 to repeat the above processing. As described above, in this embodiment, while the photosensitive material 26 is being conveyed, the time during which the photosensitive material 26 passes through each processing tank is monitored by the entrance sensor 140 and the exit sensor 142 to judge whether or not the conveyance failure occurs. There is.

On the other hand, if the determination in step 180 is negative, it is determined that a defective conveyance of the photosensitive material 26 has occurred in a predetermined processing tank, and in step 182, driving by the electromagnetic clutch corresponding to the predetermined processing tank. Stop the transmission of force. As a result, only the conveyance of the photosensitive material 26 in the predetermined processing tank in which the conveyance failure has occurred is stopped, and the photosensitive material 26 is processed in the processing tanks in the preceding stage and the subsequent processing tank of the prescribed processing tank.
Is continuously conveyed.

In step 184, a lid portion (for example, the washing tank 18) corresponding to the stock portion on the upstream side of the predetermined processing tank is used.
If a conveyance error occurs in the stock section 122, 1
The lids 130 and 132 corresponding to 24 are rotated by the actuator 138 to the position shown by the broken line in FIG. As a result, the edge of the rotated lid is made of the photosensitive material 26.
Project to the transport path. In step 186, it is determined whether or not a predetermined time determined according to the position of the processing tank where the conveyance failure has occurred has elapsed. When the determination in step 186 is denied, the determination in step 186 is repeated until the determination is denied.

During this time, since the photosensitive material 26 is continuously conveyed in the processing tanks other than the predetermined processing tank, the photosensitive material 26 located on the downstream side of the predetermined processing tank when the conveyance failure occurs. Is sequentially dipped in each processing solution, processed, dried in the drying unit 24, and discharged to the outside. Also,
When the conveyance failure occurs, the photosensitive material 26, which is located on the upstream side of the predetermined processing tank, has its leading end guided to the inside of the stock unit by the end of each lid, and is sequentially fed into the stock unit. Be done. For the predetermined time, the photosensitive material 26 located on the rear side of the predetermined processing tank in which the conveyance failure has occurred is reliably discharged to the outside of the photosensitive material processing apparatus 120, and the photosensitive material located on the front side. It is supposed that 26 will be surely stored in the stock section.

When the predetermined time has elapsed and the determination in step 186 is affirmative, the routine proceeds to step 188, and the actuator 138 is moved so that the lid rotated in step 184 returns to the position shown by the solid line in FIG. The lid is rotated by. As a result, the inside and outside of each stock portion is shielded from light, and the inside of each stock portion becomes a dark room. Next step 1
At 90, an alarm is activated to notify the operator that a conveyance failure has occurred. As a result, the operator exposes the inside of the photosensitive material processing device 120 to perform the work of canceling the conveyance failure.

At this time, the photosensitive material 26 that has been immersed in the photosensitive material in the processing tanks on the front and rear sides of the predetermined processing tank when the conveyance failure occurs is transferred to the stock section or Since the processing has been completed, the photosensitive material 26 will not be damaged by continuing the state of being immersed in the processing solution and proceeding with the processing such as development. Further, since the inside of the stock portion is a dark room by rotating the lid portion after accommodating the light-sensitive material 26, even if the inside of the light-sensitive material processing device 120 is exposed to perform the above-mentioned work, the inside of the stock portion is reduced. It is possible to prevent the photosensitive material 26 housed in the optical disk from being damaged by being exposed to light from the outside.

As described above, in the second embodiment, when the defective conveyance of the photosensitive material 26 is detected in the predetermined processing tank, the photosensitive material 26 located on the upstream side of the predetermined processing tank is detected.
Was stored in the stock section to make the stock section a dark room, and the photosensitive material 26 located on the rear side of the predetermined processing tank was allowed to continue processing.
It is possible to prevent damage to the photosensitive material located in the processing tanks on the upstream side and the downstream side of the predetermined processing tank.

[0049]

As described above, according to the first aspect of the invention, the load applied to the driving means for driving the conveying means for conveying the photosensitive material is detected, and when the magnitude of the load is a predetermined value or more, the photosensitive material is exposed. Since we decided to stop the material transfer,
An excellent effect is obtained in that damage to the photosensitive material can be reduced when defective passage of the photosensitive material occurs.

According to the second aspect of the present invention, the stocking section for stocking the photosensitive material is provided in the preceding stage of the processing tank, and the driving force of the driving means is applied to each conveying means arranged in each of the plurality of processing tanks. Each of them can be independently transmitted or stopped, and when the detection means detects the occurrence of a defective conveyance of the photosensitive material, the driving force to the conveying means arranged in the processing tank corresponding to the position where the defective conveyance occurs is detected. In addition to stopping transmission, the photosensitive material located on the upstream side of the generation position is conveyed into the stock section provided on the upstream side of the generation position. An excellent effect that damage to the material can be reduced can be obtained.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a photosensitive material processing apparatus according to a first embodiment.

FIG. 2 is a perspective view showing a drive mechanism of a conveyance roller arranged in each processing tank in the photosensitive material processing apparatus of the first embodiment.

FIG. 3 is a circuit diagram showing a configuration around a control device according to a first embodiment.

FIG. 4 is a flowchart illustrating the operation of the first embodiment.

FIG. 5 is a schematic configuration diagram of a photosensitive material processing apparatus according to a second embodiment.

FIG. 6 is a perspective view showing a drive mechanism of a conveyance roller arranged in each processing tank in the photosensitive material processing apparatus of the second embodiment.

FIG. 7 is a circuit diagram showing a configuration around a control device according to a second embodiment.

FIG. 8 is a flowchart illustrating the operation of the second embodiment.

[Explanation of symbols]

 10 Photosensitive Material Processing Device 26 Photosensitive Material 50 Sprocket 54 Motor 96 Resistance 100 Control Device 104 Operational Amplifier 110 A / D Converter 120 Photosensitive Material Processing Device 122-128 Stock Section 130-136 Lid 138 Actuator 140 Inlet Sensor 142 Outlet Sensor 144 Electromagnetic Clutch

Claims (2)

[Claims] 1. A processing tank for storing a processing solution for processing a photosensitive material, and a driving means for driving a transfer means for transferring the photosensitive material so that the photosensitive material is immersed in the processing solution in the processing tank for processing. A detection means for detecting a load applied to the driving means, and a control means for stopping the conveyance of the photosensitive material by the conveyance means when the magnitude of the load detected by the detection means is a predetermined value or more. A photosensitive material processing apparatus including. 2. A plurality of processing tanks for storing a processing solution for processing a photosensitive material, a stock section for stocking the photosensitive material, which is provided in the preceding stage of the processing tank, and each of which is disposed in each of the plurality of processing tanks. A plurality of conveying means for conveying the photosensitive material so that the photosensitive material is immersed in the processing liquid in the processing tank for processing, and the driving force of the driving means is independently transmitted or stopped to the plurality of conveying means. Possible transmission means, detection means for detecting the occurrence and position of occurrence of defective conveyance of the photosensitive material, and processing corresponding to the occurrence position of poor conveyance of the photosensitive material when the occurrence of defective conveyance of the photosensitive material is detected The transmission of the driving force to the conveying means arranged in the tank is stopped, and the photosensitive material located on the upstream side of the generating position is transported into the stock section provided on the upstream side of the generating position. control Photosensitive material processing apparatus including a stage, a.