JPH09258410A - Automatic developing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently perform developing processing by precisely grasping sheet film supplied to a treating liquid processing part. SOLUTION: In the case that a closedown signal is outputted from a tray opening/closing sensor when a film insertion sensor detects the end part of the sheet film, it is changed over to a normal mode (112), and throughput is operated and is added to integrated throughput (114), so that replenishing liquid is supplied (118). Then, in the case that an open signal is outputted from the tray opening/closing sensor when the film insertion sensor detects the end part of the sheet film, it is changed over to a supply abnormal mode (202), so that it is excluded from an object for the addition of the throughput.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic developing apparatus, and more particularly to an automatic developing apparatus for replenishing a processing solution in a processing tank for immersion processing with a processing replenishing solution according to a processing amount of a photosensitive material.

[0002]

2. Description of the Related Art A light-sensitive material on which an image has been exposed is successively subjected to processing such as development, fixing and washing in an automatic developing device. In such an automatic developing device, a photosensitive material is sandwiched by a conveying roller arranged at an insertion port at the entrance of the processing section and introduced into the processing section. Further, in such an apparatus, the function of the processing liquid in the processing tank is deteriorated according to the amount of the photosensitive material to be processed (processing amount). It is common practice to replenish the replenisher to compensate for this deterioration. Therefore, a sensor is arranged in the vicinity of the transport roller of the insertion port to detect the width and length of the photosensitive material to be processed, and these are calculated, and the integrated value (cumulative value) thereof is set to a predetermined processing amount ( A certain amount of replenisher is replenished to the processing tank each time the area is reached.

Generally, in an automatic developing apparatus, a film detection sensor provided at an insertion port of a processing section is turned on by detecting the leading edge of a photosensitive material, for example, a film, which is nipped and transported by a transportation roller, and the trailing edge is turned on. Turns off when detected. The detection sensor detects the width of the film, and detects the length of the film from the time from on to off and the rotation speed of the transport roller.

[0004]

However, there is a case in which a film conveyance defect (jamming) may occur such that the leading end of the film is caught in the processing section. In this case, if the film that is not conveyed properly is opened by opening the lid of the processing section of the automatic processing device and pulling it out from between the film detection sensor and the processing tank on the downstream side, the film will be sent normally. Since the trailing edge of the trailing edge passes through the sensor, it is determined that the film has normally passed through the processing section. As a result, it is determined that the film has been processed even though the film is not actually processed by the automatic developing device, and the replenisher is replenished in vain.

The present invention has been made in consideration of the above facts, and an object of the present invention is to provide an automatic developing device capable of efficiently replenishing a replenisher.

[0006]

An automatic developing apparatus according to claim 1, wherein the processing replenisher is replenished in accordance with the processing amount of the photographic light-sensitive material processed by the processing liquid, the photosensitive material before processing. Of the processing replenisher, a detection sensor that detects the passage of the processing replenisher, and a calculation unit that calculates the amount of the photosensitive material to be processed based on the detection result of the detection sensor; It is characterized in that it is provided with an operation means that is not a replenishment target.

According to the first aspect of the present invention, it is possible to prevent the replenishment liquid from being replenished with respect to the amount of the photosensitive material calculated based on the detection result of the detection sensor by switching the operation means. Therefore, the replenishment of the unnecessary replenisher can be prevented.

The automatic developing apparatus according to claim 2 is the same as that according to claim 1.
In the, the operating means is interlocked with a roller sensor for recognizing a driving state of a carrying roller for carrying the photosensitive material,
The operation means is operated when the roller sensor detects that the transport roller is rotating at a speed other than a set speed.

According to the second aspect of the present invention, it is judged whether the conveying state is normal or abnormal on the basis of the driving state of the conveying roller by the roller sensor. Therefore, for example, the supply is stopped while being sandwiched by the conveying rollers. When the photosensitive material is taken out in the conveying direction or in the reversing direction, the conveying roller rotates at a speed other than the set conveying speed due to the force from the outside, so it is judged as abnormal, and in this case the operating means is activated. Since appropriate replenishment can be performed, efficient development processing can be performed without performing unnecessary replenishment of the replenisher.

The automatic developing apparatus according to the third aspect is an automatic developing apparatus that replenishes a processing replenisher into the processing tank each time the amount of the photographic light-sensitive material processed by the processing solution in the processing tank reaches a constant amount. A processing amount recognizing means including a detection sensor for detecting passage of a photosensitive material before processing, and a calculation unit for calculating the amount of the photosensitive material to be processed based on the detection result of the detection sensor, and at least the detection sensor. When the leading edge of the photosensitive material passes the detection position, it is possible to switch between a normal mode in which the amount of the photosensitive material is added to the integrated processing amount and an abnormal mode in which the amount of the photosensitive material is not added to the integrated processing amount. Mode switching means and mode switching control means for switching the mode switching means to a normal mode when the photosensitive material is conveyed normally, and to the abnormal mode when the photosensitive material is conveyed abnormally. It is characterized in that.

According to the present invention, the mode switching control means determines whether the photosensitive material is normally conveyed or abnormally conveyed, and switches the mode switching means. In the normal mode, the photosensitive material is processed. Is added as the processing amount to the integrated value of the processing amount of the photosensitive material, and is not added as the processing amount in the abnormal mode. The addition to the value can be eliminated. As a result, the amount of the photosensitive material that is pulled out and not processed in the abnormal mode can be excluded from the target of replenishment, the supply of the photosensitive material to the processing liquid processing section can be accurately determined, and the developing process can be efficiently performed. it can.

An automatic developing device according to a fourth aspect of the present invention is the third aspect.
In the above, the mode switching control means is a lid portion sensor that opens a part of the developing portion when an abnormality occurs and interlocks with an opened / closed state of the lid portion that is closed during a normal state.

According to the fourth aspect of the invention, it is judged whether the photosensitive material is in a normal conveying state or an abnormal state based on the opening / closing state of the lid portion by the lid sensor. Therefore, for example, after the photosensitive material has passed the sensor position. When a clogging occurs and the lid is opened to remove the clogging, and the photosensitive material is pulled out, it is judged as an abnormality and the abnormality mode is switched to, whereby the addition of the processing amount can be eliminated. As a result, the supply of the photosensitive material can be accurately determined with a simple configuration and appropriate replenishment can be performed, so that efficient development processing can be performed without performing unnecessary replenishment of the replenisher.

[0014]

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

FIG. 1 shows an automatic developing apparatus 1 according to this embodiment.
A schematic configuration of 0 is shown. The automatic developing device 10 includes a processing liquid processing unit 16 that sequentially dips and processes a plurality of processing liquids while conveying a sheet film 12 that is a sheet-shaped photosensitive material inside a box-shaped casing 14, and a processing liquid processing unit 16. A drying unit 18 for drying the sheet film 12 processed by the liquid processing unit 16 is provided.

The processing tank 20 in the processing liquid processing section 16 stores a developing solution, a fixing solution and washing water, respectively.
2, a fixing bath 24 and a washing bath 26 are provided. A transport path for the sheet film 12 is formed in each tank by a plurality of roller pairs and guides. An insertion rack 28 is provided on the upstream side of the developing tank 22. A film insertion sensor 8 is provided near the insertion rack 28 as described later.
2 are provided.

The insertion rack 28 is provided with a conveyance roller 29, and the sheet film 1 drawn into the treatment liquid processing section 16 by the conveyance roller 29 of the insertion rack 28.
No. 2 passes through the developing tank 22, the fixing tank 24, and the washing tank 26 along the transport path, and is sequentially dipped in the processing liquid in each processing tank to be processed.

The drying section 18 is provided above the processing liquid processing section 16 and is a conveyance path for guiding the sheet film 12 upward, which is formed by a large number of roller groups 30 arranged in a zigzag pattern inside. Hold. As a result, the sheet film 12 treated with the treatment liquid is dried while being guided and conveyed upward by the roller group 30.

The dried sheet film 12 is discharged to the outside of the machine above the treatment liquid treatment section 16 by the turn section 32 provided on the drying section 18. In addition, in the processing liquid processing unit 16, the sheet film 12
Is conveyed and processed with its photosensitive surface (when the photosensitive surface is formed on only one surface) facing upward.

The casing 14 is provided with a film accommodating portion 44 in which an inserting tray 46 and a discharging tray 48 are stacked in two stages so as to cover the upper surface side of the treating liquid treating portion 16 and are treated. The film to be stacked is loaded on the insertion tray 46 in an overlapping manner, and the sheet film 1 that has passed through the drying unit 18
2 is discharged to the upper discharge tray 48.

The film accommodating portion 44 is detachably attached to the upper portion of the treatment liquid treating portion 16, and the treatment liquid treating portion 1
It also serves as the lid for 6. Normally, the insertion tray 46 is covered by the ejection tray 48, but it can be opened by rotating the ejection tray 48 around a hinge 47 provided at the end on the drying unit 18 side. .

The automatic developing device 10 includes a film accommodating portion 4
An automatic feeder unit 50 is provided across the insertion tray 46 of No. 4 and the insertion port into the processing liquid processing unit 16.
The leading edge of the sheet film 12 accommodated in the insertion tray 46 of the film accommodating portion 44 has the auto feeder 50.
It will be in the state of being inserted inside.

In the auto feeder unit 50, a sheet-fed mechanism 62 that lifts and moves (sheet-fed) the sheet films 12 one by one, and the sheet film 12 lifted by the sheet-fed mechanism 62 is driven by a driving force of a roller 76. And a transfer unit 54 which guides and transfers in a letter shape and supplies the processing liquid processing unit 16 with the character.

Inside the housing 52 of the auto feeder unit 50, a substantially L-shaped film stopper 72 is formed along the insertion tray 46, forming one end of the insertion tray 46.
Are arranged, and the leading ends of the sheet films 12 stacked on the insertion tray 46 are brought into contact with the film stoppers 72 for alignment.

A sheet-fed mechanism 62 is disposed above the film stopper 72, and the roller 76 is disposed near the upper portion of the film stopper 72 (on the roller pair 56 side). The roller 76 is rotationally driven by the same motor as the roller pair 56-60.

By rotating the roller pairs 56 to 60, the sheet film 12 can be guided and conveyed toward the insertion rack 28 of the automatic developing device 10, and the guide 70 surely guides it toward the insertion rack 28. Has become.

A supply sensor 64 is attached to the front of the sheet feeding mechanism 62 in the film discharge direction. Thus, it is possible to confirm that the sheet film 12 has been supplied to the transport unit 54 by the sheet-fed mechanism 62, and the transport unit 5
By confirming the supply to No. 4, the supply of the next sheet film 12 is started.

A replenishing tank (not shown) filled with a developing replenishing solution and a fixing replenishing solution can be attached to the automatic developing device 10. Each replenishment tank is connected to a replenishment adjustment unit 40 (see FIG. 2) that executes the supply of the replenisher solution in the replenishment tank to the processing tank according to an instruction. A replenishment control unit 84 is connected to the replenishment adjustment unit 40, and a predetermined amount of replenisher liquid is replenished to each processing tank based on an instruction from the replenishment control unit 84.

In FIG. 1, a film accommodating portion 44 in which an insertion tray 46 and an ejection tray 48 are stacked in two stages.
The film can be pulled upward when the inside of the processing section needs to be opened, such as when the film has a poor conveyance in the processing tank 16. The automatic developing device 10 is provided with a tray opening / closing sensor 80 that detects that the film storage portion 44 has been pulled up. Tray open / close sensor 8
0 is attached to the contact surface with the insertion tray 46 on the casing 14 near the side where the insertion rack 28 of the processing liquid processing unit 16 is provided. As a result, the film storage unit 4
Whether or not the upper portion of the processing liquid processing unit 16 is open is determined by whether or not the insertion tray 46 of No. 4 is in contact with the tray opening / closing sensor 80. The signal output from the tray opening / closing sensor 80 is input to the replenishment control unit 84 described later, and the insertion tray 46 above the processing liquid processing unit 16 from the tray opening / closing sensor 80.
A signal relating to the open / closed state of is transmitted to the replenishment controller 84.

As shown in FIG. 1, on the guide 70 side of the insertion rack 28, a plurality of film insertion sensors 82 are attached in the transport width direction. Film insertion sensor 82
When the sheet film 12 supplied by the transport unit 54 is transported by the insertion rack 28, the sheet film 12
The front and rear ends of the
(See (A) and (B)). The signal output from the film insertion sensor 82 is input to the replenishment control unit 84 (see FIG. 2), which allows the supply state of the sheet film supplied by the processing liquid processing unit 16 to be recognized. It is like this. Further, since a plurality of sheets are provided in the conveyance width direction, the width of the sheet film 12 can be detected.

As shown in FIG. 2, the automatic developing device 10
Is provided with a replenishment control unit 84 that determines the replenishment amount of the replenishment liquid to be replenished to the processing tank on the assumption that the sheet film 12 that has passed through the insertion sensor 82 is processed by the processing liquid processing unit 16.

The replenishment control unit 84 includes a mode switching determination unit 90.
Is provided, and the signal output from the tray open / close sensor 80 is input via the open / close signal input unit 86, and the signal output from the film insertion sensor 82 is input via the detection signal input unit 88. ing. As a result, the mode switching determination unit 90 recognizes whether the upper surface of the processing liquid processing unit 16 is open or closed by the tray opening / closing sensor 80, and the presence / absence of the sheet film 12 below the sensor position of the film insertion sensor 82. Can be recognized. The mode switching determination unit 90 detects the sheet film 12 detected by the film insertion sensor 82.
In the normal mode in which the processing liquid is replenished normally in the processing liquid processing unit 16 and when the sheet film 12 sensed by the film insertion sensor 82 is not the target of the processing in the processing liquid processing unit 16. The supply abnormality mode for supplementing the processing liquid is switched.

A replenishment amount calculation unit 92 is connected to the mode switching determination unit 90. The replenishment amount calculation unit 92 calculates the amount of replenishment liquid to be replenished when the film supplied to the treatment liquid processing unit 16 is treated with the treatment liquid in the treatment tank, and instructs the replenishment instruction unit 94. Is output.

The supplement instruction section 94 is connected to the supplement adjustment section 40. The replenishment adjusting unit 40 replenishes the replenishing liquid to each processing tank based on the instruction from the replenishment instructing unit 94.

The switching judgment in the mode switching judging section 90 is judged based on the opening / closing signal from the tray opening / closing sensor 80 and the detection signal from the film insertion sensor 82.

At the time of normal supply, the upper part of the processing liquid processing unit 16 is covered by the film accommodating portion 44, and the sheet film 12 is guided through the processing liquid processing unit 16 along the transport path. That is, when the tray opening / closing sensor 80 outputs an ON signal indicating that the film storage portion 44 is closed, when the film insertion sensor 82 detects the leading end portion of the sheet film 12, the normal mode is selected.

As shown in FIG. 4C, when the sheet roller 12 in the insertion rack 28 holds the sheet film 12 and the sheet film 12 is jammed, the operator pulls out the jammed sheet film 12. In the case where the rear end of the sheet film 12 is detected when the film accommodating portion 44 is removed and the tray open / close sensor 80 outputs the OFF signal indicating the open state (FIG. 4D). (See) and the supply abnormality mode is selected.

In the normal mode, since the supplied sheet film 12 is processed in the processing liquid processing section 16, it is necessary to replenish the replenishing liquid in an appropriate amount according to the processing amount (area) of the film. On the other hand, in the abnormal supply mode, the detected sheet film 12 is not conveyed to the processing liquid processing unit 16 but is withdrawn, and the processing liquid is not processed, so that the replenisher is not replenished.

That is, in the automatic developing device 10, it is determined from the signals from the tray opening / closing sensor 80 and the film insertion sensor 82 that the sheet film 12 is effectively supplied to the processing liquid processing section 16, and the tray opening / closing sensor 80 turns off. When the signal is output between the ON signal and the OFF signal of the film insertion sensor 82, the amount of the sheet film 12 calculated between the ON signal and the OFF signal is not supplied to the treatment liquid processing unit 16. Therefore, the replenisher solution corresponding to this amount is not replenished. Film insertion sensor 8
If a predetermined replenishing amount of replenishing liquid is replenished each time the integrated value of the amount of the film calculated after passing through 2 becomes a constant value, between the on signal and the off signal. The amount of film calculated in step 1 is excluded from the integration target.

The operation of the present embodiment will be described below. The discharge tray 48 is opened, and the exposed sheet films 12 are stacked and loaded on the insertion tray 46.
8 is closed and the processing of the sheet film 12 is started.

When the sheet film 12 is loaded, the sheet feeding mechanism 62 of the auto feeder unit 50 operates as a sheet film 12.
Is supplied to the transport unit 54, and is fed to the treatment liquid treatment unit 16 by the roller pairs 56 to 60 and the guides 62 and 70.

In the processing liquid processing section 16, the sheet film 1
2 is sequentially immersed in a developing solution, a fixing solution, and washing water to treat the treatment liquid, and then sent to a drying unit 18 to be dried while being guided and conveyed upward. The sheet is discharged toward the discharge tray 48 provided above. The sheet films 12 that have been processed are sequentially stacked on the discharge tray 48.

Next, with reference to FIG. 3, the film transport in the automatic developing device 10 will be described.

At step 100, it is judged if the tray open / close sensor 80 has output an ON signal. In the open state in which the insertion sensor 46 is not placed on the treatment liquid processing unit 16, the tray open / close sensor 80 outputs an off signal, and the determination is denied.

On the other hand, if the insertion tray 46 of the film accommodating portion 44 is placed on the treatment liquid treating portion 16 and the ON signal is output from the tray opening / closing sensor 80, the determination is affirmative and the process proceeds to step 102. Transition.

If the tray open / close sensor 80 outputs an ON signal and the determination is affirmative, in step 102, an instruction to start the supply of the sheet film 12 to the transport portion 54 is issued. In step 104, the sheet film 12 placed on the insertion tray 46 is loaded into the auto feeder unit 50.
The sheet feeding mechanism 62 instructs the operation of the automatic feeder unit 50 that supplies the sheet to the conveying unit 54. Auto feeder section 5
In the operation of 0, the supply of the next sheet film 12 is started when the rear end of the sheet film 12 is detected by the supply sensor 64 provided in the front of the sheet film 12 in the transport direction of the sheet mechanism 62. A continuous supply process of the sheet film 12 placed on the insertion tray 46 is executed.

When the operation of the automatic feeder section 50 is instructed, in step 106, the film insertion sensor 82
Has output an ON signal, the determination is denied until it is output. The film insertion sensor 82 is provided between the transport unit 54 and the processing liquid processing unit 16, and the sheet film 12 guided by the transport unit 54 is supplied to the developing tank 22 which is the first tank of the processing liquid processing unit 16. At this time, if the leading edge is sensed by the film insertion sensor 82 and an ON signal is output, the determination is affirmative.

When the ON signal is output and the determination is affirmative, it is determined in step 108 whether the tray opening / closing sensor 80 has output the OFF signal. When the insertion tray 46 maintains the state in which it properly covers the processing liquid processing unit 16, the state in which the ON signal is output by the tray opening / closing sensor 80 is maintained, so the determination is negative and the step is performed. Move to 110.

At step 110, it is judged if the film insertion sensor 82 outputs an off signal. While the sheet film 12 whose front end is sensed by the film insertion sensor 82 in step 106 is transported to the roller pair 29 of the insertion rack 28 and is continuously supplied to the developing tank 22, the film insertion sensor 82 is turned on. Since the signal is being output, the determination is negative, the process proceeds to step 108, and the monitoring of the signal state of the tray opening / closing sensor 80 is continued.

On the other hand, when the sheet film 12 passes the sensor position of the film insertion sensor 82 and completes the supply to the developing tank 22, the film insertion sensor 82 detects the rear end of the sheet film 12 and outputs an off signal. The determination is affirmative and the process proceeds to step 112.

In step 112, the mode is switched to the normal mode and the process proceeds to step 114. (If the normal mode is set when the supply abnormality mode, which will be described later, is not set, this step 112 becomes unnecessary. The processing amount is calculated and added. The processing amount is calculated from the dimension in the transport width direction based on the signal from the film insertion sensor 82, the time interval of the output of the ON signal and the OFF signal, and the transport speed. Can be obtained based on the area of.

When the film processing amount is added, it is determined in step 116 whether or not the integrated processing amount of the film processed so far exceeds a certain amount. This fixed amount is determined based on the ability of the pump that supplies the replenisher from the replenisher tank to the processing tank. As a replenishment unit, the amount of replenisher replenished for processing a certain amount of film,
The replenisher is replenished each time the accumulated processing amount reaches this fixed amount. Therefore, this fixed amount determines the replenishment timing of the replenisher. If the integrated processing amount of the film exceeds this fixed amount, the determination is affirmative and step 118
Then, the replenishment liquid is instructed to be replenished with a predetermined amount (replenishing unit amount), and the process proceeds to step 200.

On the other hand, if the integrated value of the processing amount does not exceed this fixed amount, the determination is denied and the process proceeds to step 200.

In step 200, the sheet film 12
It is determined whether or not to continue the supply processing to the processing liquid processing unit 16. The supply of the sheet film 12 to the processing liquid processing unit 16 is stopped when the supply in the auto feeder unit 50 is completed. In this case, the determination is denied and the series of processes is completed. To do. On the other hand, it is considered that the supply to the processing liquid processing unit 16 is continued when the supply to the transport unit 54 in the auto feeder unit 50 is continued, and in this case, the determination is affirmative and Step 1
The process proceeds to 02 and the process is continued.

On the other hand, in step 108, after the sheet film 12 is supplied to the insertion rack 28 and before the film insertion sensor 82 detects the rear end of the sheet film 12, the film is stored on the processing liquid processing section 16. Part 44
The tray opening / closing sensor 82
Outputs an off signal and the determination is affirmed. This is because the sheet jam 12 occurs when the sheet film 12 is placed on the insertion rack 28, and the film accommodating portion 44 that covers the treatment liquid treating portion 16 is removed, and the sheet film 12 is removed.
Is applicable when removing.

When the processing liquid processing section 16 is opened to remove the sheet film 12 and remove the jam, the tray open / close sensor 80 outputs an off signal, so that the determination is affirmative and the routine proceeds to step 202, where the abnormal supply mode is set. To step 204, and the process proceeds to step 204.

In step 204, the tray opening / closing sensor 8
It is determined whether 0 has output the ON signal, and the determination is denied until the 0 outputs the ON signal. To remove the sheet film 12 that caused the jam, the processing liquid processing unit 1
6 is opened, the sheet film 12 is removed, and then the film storage unit 44 is placed on the processing liquid processing unit 16 again, the tray opening / closing sensor 80 outputs an ON signal, and the determination is affirmative Move to 206.

In step 206, the processing liquid processing unit 1
It is determined whether or not the supply processing of the sheet film 12 to 6 is continued, and if the continuation is instructed from a continuation instruction button or the like (not shown), the determination is affirmative and the process proceeds to step 102 to continue the processing. . On the other hand, when the supply process is not continued, the determination is denied and the series of processes is ended.

As a result, it is determined whether the sheet film 12 has been effectively supplied to the treatment liquid treatment unit 16.
The mode is switched based on the open / closed state of the upper side of the film 6, and when the effective supply to the processing liquid processing unit 16 is not performed, a supply abnormality mode is set and the film insertion sensor 8
Since the amount of the sheet film 12 detected by 2 is not added to the integrated value of the film processing amount up to that point, wasteful replenishment can be eliminated and the developing process can be efficiently performed.

In the present embodiment, the tray open / close sensor 80 is used as the abnormality determining means, and when the tray open / close sensor 80 detects the upper opening of the processing liquid processing section 16, it is determined that the supply is abnormal. It is not limited to this.

For example, a roller drive sensor for monitoring the drive state of the transport roller 29 may be provided in the drive unit of the transport roller 29, and the mode may be switched based on the drive state of the transport roller 29. In this case, the film detection sensor 8
When the trailing edge of the sheet film 12 is detected by 2, the normal state is determined when the transport roller 29 is transporting at the processing transport speed set for the processing liquid processing, and the normal state is determined. When the transport roller 29 is transporting at the transport speed, it is possible to determine the abnormal state and switch the mode. The case where the transport roller 29 transports at a transport speed other than the processing transport speed is, for example, the transport roller 29.
This corresponds to the case where the sheet film 12 sandwiched between the two is pulled out above the processing liquid processing unit 16 and the case where the sheet film 12 is pulled back in the direction opposite to the conveying direction. Also by this, the processing liquid processing unit 16
It is possible to accurately grasp the sheet film 12 supplied to the sheet film, eliminate unnecessary replenishment of the replenisher, and perform the process efficiently.

[0062]

As described above, according to the first aspect of the invention, the replenisher is not replenished with respect to the amount of the photosensitive material calculated by the operation means based on the detection result of the detection sensor. Therefore, it is possible to prevent unnecessary replenishment of the replenisher.

According to the second aspect of the present invention, it is possible to perform appropriate replenishment by the roller sensor based on the driving state of the conveying roller to judge whether the conveying state is normal or abnormal.

According to the third aspect of the invention, the mode switching means determines whether the photosensitive material is normally conveyed or abnormally conveyed, and the mode is switched. When abnormal conveyance is performed, the processing amount is not added, so that the abnormal material is pulled out in the abnormal mode. However, the amount of unprocessed light-sensitive material can be excluded from the object of replenishment, and development processing can be performed efficiently.

According to the fourth aspect of the present invention, it is determined whether the conveyance state of the photosensitive material is normal or abnormal based on the opening / closing state of the lid portion by the lid sensor. Therefore, the photosensitive material can be supplied with a simple structure. The developing process can be performed without making unnecessary replenishment of the replenisher.

[Brief description of drawings]

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

FIG. 2 is a block diagram for determining the supply effectiveness of a sheet film of the automatic developing device according to the present embodiment.

FIG. 3 is a flowchart illustrating a process when the transport state of the film according to the present embodiment is normal or abnormal.

4A is a diagram illustrating a film supply state, FIG. 4B is a diagram illustrating a film passing state, and FIGS. 4C and 4D are diagrams illustrating a film extraction state.

[Explanation of symbols]

 10 Automatic Developing Device 12 Sheet Film (Photosensitive Material) 16 Processing Liquid Processing Section 40 Replenishment Adjustment Section 80 Tray Open / Close Sensor 82 Film Insertion Sensor (Detection Sensor) 84 Replenishment Control Section (Operating Means, Mode Switching Control Means)

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Moto Suzuki, 1250 Takematsu, Minamiashigara City, Kanagawa Prefecture Fuji Kikai Kogyo Co., Ltd.

Claims (4)

[Claims] 1. An automatic developing device for replenishing a processing replenisher according to a processing amount of a photographic light-sensitive material processed with a processing liquid, a detection sensor for detecting passage of a light-sensitive material before processing, and detection by the detection sensor. A calculation unit that calculates the amount of the photosensitive material to be processed based on the result; and an operation unit that excludes the amount of the photosensitive material calculated by the calculation unit from the replenishment target of the processing replenisher. Automatic developing device. 2. The operation means is interlocked with a roller sensor for recognizing a driving state of a conveyance roller that conveys the photosensitive material, and the operation means is such that the conveyance roller is rotating at a speed other than a set speed. 2. The automatic developing device according to claim 1, wherein the automatic developing device is activated when is detected by the roller sensor. 3. An automatic developing apparatus for replenishing a processing replenisher to a processing tank each time the amount of the photographic photosensitive material processed by the processing solution in the processing tank becomes constant, A detection sensor for detecting, a processing amount recognition means having a calculation unit for calculating the amount of the photosensitive material to be processed based on the detection result of the detection sensor, and at least the detection position of the detection sensor is the tip of the photosensitive material. When passing, a mode switching means capable of switching between a normal mode in which the amount of the photosensitive material is added to the integrated processing amount and an abnormal mode in which the amount of the photosensitive material is not added to the integrated processing amount, and a photosensitive material An automatic developing device comprising: a mode switching control means for switching the mode switching means to a normal mode when the transportation is normal, and a mode switching control means for switching the mode switching means to an abnormal mode when the transportation of the photosensitive material is abnormal. 4. The mode switching control means is a lid sensor which opens a part of the developing section when an abnormality occurs and is linked with an open / closed state of the lid section which is closed during a normal state. Automatic developing device.