JP2761607B2 - Sensitive material processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

The present invention relates to a photosensitive material processing apparatus for processing a silver salt type photosensitive material such as photographic paper, photosensitive paper for direct plate making, or a film.

[Prior art]

2. Description of the Related Art Conventionally, in a copying camera for directly making a printing plate for light printing, an exposed photosensitive material is treated with a static developer. Sensitive materials used in such applications include, for example, a halation-preventing layer on the surface of a water-resistant base (paper).
A silver salt emulsion layer sensitive to light, a hydrophilic layer mainly composed of gelatin in which physical development nuclei such as silver are dispersed, and the like are formed. The emulsion layer changes its properties when irradiated with light, but the diffusion of reduced silver to the surface layer is inhibited in the emulsion layer which has been exposed to light even when a developer is applied. On the other hand, in the emulsion layer which has not been irradiated with light, the silver halide is complexed and diffuses into the surface layer, where it is physically developed to precipitate metallic silver and become sensitized. After that, if a stabilization treatment is performed and a desensitization treatment is performed, only the portion where the metallic silver is deposited shows lipophilicity and the printing ink is applied, so that a printing plate is obtained. It is known that such a photosensitive material can cause unevenness in processing even if the reaction with a processing solution such as a developing solution proceeds in an extremely short time, and even if the processing solution is simply stopped for a short time or the processing solution is wavy. I have. Therefore, conventionally, an apparatus for performing an immersion type developing process in which a large tank is filled with a large amount of a processing solution and the photosensitive material is slowly conveyed in a static developing solution so as not to undulate has been used.

[Problems to be solved by the invention]

However, in an apparatus using immersion type development, it is necessary to store a large amount of processing solution in the processing tank, and the processing solution is deteriorated due to the processing of a large number of photosensitive materials, and the oxidation of a normal alkaline developing solution There is a problem that a change in developing performance cannot be avoided. On the other hand, simply reducing the size of the processing tank and reducing the amount of processing liquid to be stored cannot prevent the conventional problems such as unevenness in processing, and cannot be a practical solution. In addition, in the method of storing a large amount of processing liquid, there is a problem in that the temperature of the processing liquid is raised to a temperature suitable for processing at the start of use of the apparatus, that is, it takes time to warm up. In order to shorten the warm-up time, a heater or the like for adjusting the temperature must have a large electric power. Further, in immersion development in which a large amount of processing liquid is stored, there are problems that it takes time to warm up the processing liquid, and sludge accumulates on the bottom of the processing tank and becomes sludge. The sludge that has turned into sludge may hinder the transport of the photosensitive material carried into the processing tank, and may cause uneven development. SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, to reduce the amount of a required processing solution, and to improve the processing quality by uniformly applying the processing solution to a light-sensitive material. The configuration of the present invention that achieves the above object will be described below.

[Means for Solving the Problems]

The photosensitive material processing apparatus of the present invention is a processing apparatus for processing a silver salt type photosensitive material such as a photographic paper, a photosensitive paper or a film for direct plate making, and a processing tank for storing the processing liquid for the photosensitive material. A photosensitive material carrying means for carrying the photosensitive material into the processing solution in the processing tank; and a photosensitive material carrying means provided over the width direction of the photosensitive material carried into the processing tank, and provided in the processing solution stored in the processing tank. A predetermined amount of new processing liquid is supplied and temporarily stored between a roller rotatably supported at a position where the lower portion is immersed and a member pressed against the outer periphery in the width direction of the roller. Processing liquid supply means to rotate the roller in the same direction as the direction in which the photosensitive material is carried in,
A rotation supply unit that supplies the stored processing liquid to the processing tank along with the surface of a rotating roller.

[Action]

The photosensitive material processing apparatus of the present invention having the above-described configuration is configured such that the photosensitive material is carried into the processing liquid stored in the processing tank by the photosensitive material carrying means. The new processing liquid once stored between the roller and the member is supplied along with the surface of the roller rotated in the same direction as the direction in which the photosensitive material is carried in by the rotation supply unit. Since the roller is provided at a position where the lower part is immersed in the processing liquid stored in the processing tank over the width direction of the photosensitive material carried into the processing tank, the processing liquid is generated as the roller rotates. Thus, it is supplied uniformly over the width direction of the processing tank, and is used for processing the photosensitive material. In addition, the surface of the roller, the lower part of which is immersed in the processing tank, is made of sponge having a single-cell structure in which bubbles are individually independent, and the processing liquid held in the single cells is supplied to the processing tank with the rotation of the roller. It is good. The photosensitive material to be processed by the photosensitive material processing apparatus of the present invention includes silver halide photosensitive paper for plate making, silver halide film for plate making, and silver halide photographic paper.

【Example】

The configuration and operation of the present invention described above will be further clarified.
Therefore, a preferred embodiment of the photosensitive material processing apparatus of the present invention will be described below.
Will be described. FIG. 1 is an embodiment of a photosensitive material processing apparatus.
FIG. 2 is a block diagram of a developing processing apparatus according to the present invention.
Schematic configuration showing the slit fog light type copying camera 1 incorporated
FIG. The slit exposure type copying camera 1 copies an original
This is a device for producing a printing plate for light printing. First, according to FIG.
Will be described. As shown,
The lit exposure copying camera 1 includes a projection light
It incorporates a scientific system and a development processing device.
Console panel 4 provided on the upper surface and upper surface of housing 2
Reciprocating in the horizontal direction (left and right in the figure)
The original document holder 10 and the sheet-shaped photosensitive material PM
Photosensitive material transport device 20 that transports the paper to the
Irradiates the original with light and reflects light from the original
Optical system 30 that projects light onto the upper surface of photosensitive material PM and exposes it
And developing and stabilizing the exposed photosensitive material PM
Development processing device 40 and photosensitive material unloaded from development processing device 40
Drying unit 50 for drying PM, various motors and
And an electronic control unit 60 that controls the drive of the solenoid valves and the like.
You. The console panel 4 is used to set exposure conditions and the like.
Seed setting switch, power switch, start switch, etc.
Is provided, and is operated by an operator. Con
Each switch on the sole panel 4 is connected to the potential controller 60
Have been. The document holder 10 is a platen made of a transparent glass plate.
11 and an original cover 12 that can be opened and closed freely.
It is held downward between the platen 11 and the document cover 12. This
The original holder 10 is driven by a motor 13 provided in the housing 2.
Not shown, such as sprockets, chains, belts, etc.
Reciprocatingly driven in the horizontal direction via a dynamic system, and irradiation for exposure
The original is conveyed to the light source. The photosensitive material transport device 20 includes a first photosensitive material roll 21 and a second photosensitive material.
Sending out the photosensitive material from the first photosensitive material roll 21 in addition to the roll 22
Special roller pair 23, photosensitive material feeding from second photosensitive roll 22
Roller pair 24 for feeding and photosensitive material from each photosensitive material roll
With two roller pairs 25 and 26 commonly used for
If necessary, either one of the photosensitive material rolls 21 or
The sheet-shaped photosensitive material PM is sent out from 22. In the present embodiment,
Silver Master (product name: Mitsubishi Paper Mills Co., Ltd.)
Made by the company, model SLM-R2)
If it is optical paper, use Super Master (product name: Agfage
Balt, model SPP) can also be used. FIG. 2 shows that the photosensitive material PM is composed of three sets from the first photosensitive material roll 21.
Roller pairs 23, 25, 26
It shows a state in which Using the photosensitive material PM of the second photosensitive material roll 22
The roller pair 24 and 2 instead of the roller pair 23
The photosensitive material PM is transferred to the second photosensitive material row by the set of roller pairs 25 and 26.
Conveyed from the file 22. The first photosensitive material roll 21 or the second photosensitive material roll 22
Of the photosensitive material PM from the
It is performed in synchronization with the movement. The photosensitive material PM thus transported is composed of two roller pairs 25 and 26.
Exposure is performed at the exposure position set between
The cutting device 27 provided on the back side of the photosensitive material PM
And cut to the set dimensions using the console panel 4
Is done. The projection optical system 30 for exposing the photosensitive material PM
Light for irradiating light across the width of the held document
Source 31 and three mirrors 32 for reflecting the reflected light LB from the original
a mirror group 32 composed of a, 32b, and 32c and a photosensitive material PM at an exposure position
Projection lens 33 that forms an image of the original on the surface, and upper surface of photosensitive material PM
And a slit 34 for limiting the width of the reflected light LB projected on the
I can. A projection lens 33 and a mirror 32b constituting a mirror group 32,
32c is a mirror support plate 36 mounted on a tilt base 35.
And the lens support 37, respectively.
The projection magnification in the projection optical system 30 is set to a value of 1.
You. The mirror support plate 36 and the lens support 37
Is positioned on the tilt table 35 during alignment of the projection magnification.
Position is adjusted, and after alignment is complete,
It is. Light emitted from the light source 31 toward the original is reflected by the lower surface of the original.
The reflected light LB is sequentially reflected by each mirror of the mirror group 32.
After passing through the projection lens 33 and the slit 34,
An image is formed on the photosensitive surface of PM. Therefore, the feeling of being conveyed
On the photosensitive surface of the material PM, there is a slit-shaped image
Is projected. The photosensitive material PM is transported horizontally on the original holder 10.
The document holder 10 in the horizontal direction.
When the movement is completed, exposure of the entire document is completed. The photosensitive material PM is uniformly exposed to the lower side of the roller pair 26.
A plurality of LEDs 38 are provided in a line to
By driving the LED 38 and irradiating the photosensitive material PM,
When exposing with small size, it is not possible to expose with reflected light LB from the original.
Area around the sensitive material PM
ing. After that, the photosensitive material PM is cut by the cutting device 27.
You. The development processing device 40 is installed below the projection optical system 30.
The photosensitive material PM introduced through the introduction roller 41
A development process and a stabilization process are performed. This present
The image processing device 40 is a developer main tank for storing the developer.
42 and stabilizer main tank 43 for storing stabilizer
Possible, rollers and other components are driven together by a motor (not shown)
And is housed in the housing 2
Have been. The details of the configuration of the development processing device 40 will be described later.
Will be described. Along the path of the photosensitive material PM, a dry
A drying unit 50 is provided. This drying unit 50
Applies tension to the photosensitive material PM processed by the development processing device 40.
Pairs of rollers 51 and 52 for conveying while moving,
And a transfer tray 53 provided between the transfer trays 53.
Sensitive material provided at a position facing the photosensitive material PM across the transport path
The drying heater 54 and the fan 55 and the outside of the housing 2 are installed.
An external tray 56 for storing the attached and dried photosensitive material PM
Prepare. Accordingly, the exposed photosensitive material PM is transferred to the developing device 40.
After the development and stabilization process, the photosensitive material is dried by the heater 54 for drying the photosensitive material.
It is dried and sent to an external tray 56 outside the housing 2. like this
The printing plate for offset printing is duplicated and produced from the original.
It is. Next, a development process for developing and stabilizing the photosensitive material PM
The device 40 will be described. In the description of the development processing device 40,
In addition to FIG. 1 showing the schematic configuration, perspective views (FIGS.
Figures) and cross-sectional views (Fig. 5) are used as appropriate. As shown in FIG. 1, this development processing device 40
The photosensitive PM of the exposure stack introduced from the
Developing unit 70 that develops using developer in tank 42 and stable
Developed using the stabilizer in the main tank 43
The material PM is subjected to a stabilization process, and this is rolled in the drying unit 50.
Stabilization processing unit (hereinafter referred to as “stabilization unit”) 72 sent out to pair 51
And The developing unit 70 includes a developer mainter as a developer supply system.
In addition to the ink tank 42, this developer main tank 42 is
Liquid that receives developer from the reservoir tank 42 and maintains the liquid level at a constant level.
Surface management cylinder 74 and developing from liquid level management cylinder 74 via conduit 76
A developer cistern tank 78 into which the liquid flows,
Opens and closes conduit 79 for developer outflow from turn tank 78
Inflow solenoid valve 80 and developer nozzle 82 for discharging developer
And The developer nozzle 82 has a throttle section (the
(Refer to Fig. 5)
Control the amount of developer discharged from the tip of the developer nozzle 82 during the period.
Limited. Discharge amount of developer from the tip of developer nozzle 82
Is the pressure applied to the throttle, that is, the liquid in the liquid level management cylinder 74.
It is almost determined by the height of the surface and the diameter at the narrowed portion. Book
In the embodiment, since the liquid level is kept constant,
When the solenoid valve 80 is opened, the flow rate of the developer
Is kept constant regardless of the amount of developer in the tank 42.
You. The developer cistern tank 78 has a liquid inflow chamber
A partition plate 84, which is divided into a liquid storage chamber 78b and a liquid storage chamber 78b,
It stands upright from the bottom, and a conduit 76 opens in the liquid inflow chamber 78a.
Has been spoken. On the other hand, on the bottom of the liquid
According to the amount of liquid in the tank and the heater 86
A developer cistern tank 78 having a float 87 that moves up and down
And a float sensor 88 for detecting the amount of liquid in the
You. It is also connected to the bottom of the developer system tank 78.
At the entrance of the duct 79, dust is removed from the developing solution flowing out.
A mesh filter 90 to be removed is provided. Therefore, from the developer main tank 42 through the conduit 76
The flowing cold developer first flows into the liquid inflow chamber 78a.
It flows over the upper end of the partition plate 84 and into the upper part of the liquid retaining chamber 78b. Stagnation
The developer in the reservoir 78b is heated by the heater 86. He
The temperature of the developer by the heater 86 is controlled by an electronic control unit described later.
Is maintained at a predetermined temperature. Developer maintained at a predetermined temperature
When the inflow electromagnetic valve 80 opens, the developer nozzle 82
leak. Next, a developing tank 96 where the development of the photosensitive material PM is actually performed is performed.
The outline configuration of the surroundings and the outline of the operation will be described. Present
Below the introduction roller 41 for introducing the photosensitive material PM into the image section 70,
Fig. 5 Entrance row that rotates in the direction of arrow X and sends photosensitive material PM
La pair 92 is provided, and further below it,
Guides the photosensitive material PM in contact with the material PM and transfers it to the photosensitive material PM during transport.
A so-called waist-free roller 94 is provided. The developing tank 96 has a substantially U-shaped cross section and is shown in FIG.
The width of the photosensitive material PM has a width corresponding to
Form 95. The developing tank 96 contains a developing process.
A little distance from the bottom of the developing tank 96 over the width of the tank 96
The developer supply roller 98 is disposed at a position where the separation is left.
You. Therefore, the developer is stored in the storage section 95 of the development processing tank 96.
If it is, the lower part of the developer supply roller 98 is partially immersed in the developer.
I do. The surface of the developer supply roller 98 is made of a sponge material.
The bubbles that make up the sponge are individually isolated.
It is a standing bubble (single bubble). Developer supply low
As shown in FIG. 4, the developer 98 is dropped from the top
Development that temporarily stores the liquid between the developer supply roller 98
The liquid temporary storage unit 100 is assembled. The bottom of the developing tank 96 is shown in FIGS.
As shown in FIG.
Developed by a plurality of communication courses 102 opened at the bottom of the bath 96
The liquid can flow in. Inside the bottom sump chamber 101
Has two bar heaters 103 for heating the developer.
You. At the center bottom of the bottom reservoir 101, open and close the pipeline
It communicates with the bottom reservoir 101 via the discharge solenoid valve 104.
Developer that discharges used developer to waste liquid receiving tray 106
A discharge pipe 108 is provided continuously. On the transport side of the photosensitive material PM in the developing tank 96,
Guide plate 110 having a predetermined elevation angle α
You. Guide plate 110 reduces contact resistance with photosensitive material PM
(See Fig. 3).
Of the developed photosensitive material PM toward the squeezing roller pair 109 in the fixed section 72
Form an entry path. The lower surface of the guide plate 110 has a self-temperature
A heating planar heater 112 having an adjustment function is attached.
I have. As shown in FIG. 3, the planar heater 112
The mounting bracket 113 provided on the treatment tank 96 side and other metal
Tool, it is integrally fixed to the guide plate 110. The detailed configuration of the developing tank 96 will be described. Development
As shown in FIG. 3, the storage section 95 of the treatment tank 96 has a curved periphery.
On both sides of the face plate 120, a substantially half-moon shaped side plate 122 (in the figure,
(The side plate on the left side is omitted)
It is formed by fixing. Guide plate 1 for peripheral plate 120
At the approximate center of the 10 side, a through hole 126 penetrating the peripheral plate 120
Is provided. The developer is supplied from the developer nozzle 82.
When the amount of liquid in the storage section 95 increases due to the
Outflow from 126. Therefore, the developer level in the reservoir 95 is
Is held at the height of the through hole 126. The discharge solenoid valve 104 immediately below the developing tank 96 has a
As shown in FIG. 1, a drip-proof cover 114 is provided,
Prevents developer from dropping from bath 96 or guide plate 110
doing. The temporary developer storage 100 is shown in FIGS. 4 and 5.
As shown in detail, both ends of the developer supply roller 98 are
Two end face plates 134 that contact the roller while allowing rotation of the roller,
The end plate 134 is fixed at both ends.
And a support plate 136. Also, the upper plate constituting the support plate 136
At the position corresponding to the center of 136a, the tip of the developer nozzle 82,
A liquid passage hole 138 is provided, while a spine constituting a support plate 136 is provided.
The plate 136b is urged toward the developer supply roller 98,
Stainless steel leaf spring 140 that contacts the outside of the roller 98
Is provided. Immediately below the liquid passage hole 138, start from the center of the front end of the upper plate 136a.
The liquid receiving plate 142 is connected to the leaf spring 140.
A slight gap is provided between the tip of the liquid receiving plate 142 and the leaf spring 140.
Is provided. The developer supply roller 98 and both end faces
The end face plate 134 in contact and the plate in contact with the outer peripheral surface of the roller 98
The portion surrounded by the spring 140 is covered with the developer supply roller 98.
In the part of, together with the fact that it rotates upward,
Temporarily store the developer dropped from the developer nozzle 82
be able to. This part is called a liquid pool part 143. The liquid receiving plate 142 is used to supply the developing solution to the developing solution supply roller 98.
Plays the role of efficiently spreading in the axial direction of the
Even if the plate 142 is not provided, the developer temporarily collects in the liquid reservoir 143.
The developer supply roller 98 spreads in the axial direction.
Not really. The developer dropped from the developer nozzle 82 is shown in FIG.
As shown in FIG. 5, the liquid receiving plate 1
42, formed between both ends of the liquid receiving plate 142 and the leaf spring 140.
Flow along the surface of the leaf spring 140 from the slight gap
You. In other words, the developing solution supply roller 98 spreads along the axial direction.
It reaches the liquid pool part 143 while falling, and is temporarily stored here.
It is. Some of the developer stored in the liquid reservoir 143 is
Individual bubbles in the single bubble layer on the surface of the image supply roller 98
The developer supply roller 98 is uniformly held in the axial direction.
With rotation of the image liquid supply roller 98 in the Y direction shown in FIG.
Pumped out. The lower portion of the developer supply roller 98 is stored in a developing tank 96.
The developer supply roller is immersed in the retained developer.
The new developer pumped out with the rotation of 98 has already been stored.
It is supplied into the retained developer. The new developer is
The photosensitive material PM diffuses evenly to the loading side of the developing tank 96.
Will be. The developer is supplied and the developer in the reservoir 95 is
Increases, the amount corresponding to the newly supplied developer
Of the developer excluding the developer lost when the photosensitive material PM is carried out
The developer (old developer) flows from the through-hole 126 in the peripheral plate 120 to the outside.
And the amount of developer in the developing tank 96 is balanced.
You. The developer also flows into the bottom liquid storage chamber 101,
It is heated by two built-in rod heaters 103
You. The heated developer is supplied to the reservoir 95 through the communication hole 102.
Convection between and. Energization of the rod-shaped heater 103 is a temperature detector
Feedback control based on developer temperature detected by
In addition to the fact that the developer
Is raised in a very short time and maintained at a predetermined temperature. When the photosensitive material PM passes through the developer reservoir 95 of the developing tank 96,
For example, sludge is mixed into the developer with the development of the photosensitive material PM.
Enter. These sludges are collected from the bottom 95
After flowing into the chamber 101 and the discharge solenoid valve 104 is opened, the developing
Along with the liquid, the waste liquid receiving tray 106
Is discharged. Next, conveyance to the photosensitive material PM will be described. Entrance roller pair
The exposed photosensitive material PM sent by 92 is
While entering the storage section 95 while being guided by the
It passes through the inside of the storage part 95 along the inner peripheral surface of 0. Inside storage unit 95
While passing through the developer supply roller 98 as described above.
Development processing tank with a focus on new developer diffused from the bubble layer
96 reacts with the developer stored in
Processing is started. The photosensitive material PM is provided between the developer supply roller 98 and the peripheral surface.
After passing through the storage section 95 through the gap with the plate 120,
At the entrance of the stabilizer 72 along the upper surface of the guide plate 110
It is sent out to the selected squeezing roller pair 109. Guide plate 1
Atmospheric temperature on 10 is a planar heater with temperature control function
Is the temperature near the specified temperature due to heating by 112?
Also, while the paper is being conveyed on the guide plate 110, the PM
Development of photosensitive material PM is continued by the developer adhering to the surface
I do. The developer adhering to the surface of the photosensitive material PM
It is squeezed out and removed by the la pair 109. Next, the stabilizing part, which is a stabilizing system
72 will be described with reference to FIG. The same member or the same machine as the developing unit 70 described above is used.
The description of the members having the function is omitted, and the developing unit is omitted.
Auxiliary code A is added to the code (numerical value) used for description in 70.
In addition, it shall be expressed. The stabilizing section 72 serves as a stabilizing agent supply system.
Stabilizer main tank 43
Liquid level control cylinder 74A to which the stabilizer main tank 43 is attached and detached,
Stabilizer cistern tank 7 with partition plate 84A standing inside
8A, liquid level control cylinder 74A and stabilizer cistern tank 78A
Stabilization with conductive tube 76A and inflow solenoid valve 80A
It has an agent nozzle 82A and the like. Stabilizer cistern tank 78A
In the same manner as the developer cistern tank 78, the float 87
Also equipped with float sensor 88A with A and mesh filter 90A
Has been obtained. Inlet solenoid valve 80A and stabilizer nozzle 82A
Stabilizer from the cistern tank 78A
When flowing out, the stabilizer flows in from the conduit 76A
I do. With respect to the other components of the stabilizer 72,
This will be briefly described. At the upper end of the guide plate 110 of the developing section 70
The photosensitive material PM that has passed through the positioned squeezing roller pair 109 becomes the photosensitive material P
The guide cover 144 and the
Guided by the lead roller 146, transported to the stabilization tank 96A
Is entered. At the entrance of the stabilization tank 96A,
A free roller 94A for providing a loose waist is provided. Cheap
The stabilizing process 96A, which forms the stabilizing agent reservoir 95A,
Similar to the processing tank 96, the sponge-type stabilizer supply roller 98A
With the stabilizer supply roller 98A
A temporary storage section 100A for forming the stabilizer 143A is provided.
Supply the stabilizer to the loading side of the photosensitive material PM in the storage section 95A.
You. On the other hand, at the bottom of the stabilization tank 96A,
Similarly, a bottom liquid storage chamber 101A is provided. Drip-proof cover
Used when the discharge solenoid valve 104A with 114A is opened
Of the bottom liquid via the stabilizer discharge pipe 108A.
Waste liquid receiving tray from bottom liquid storage chamber 101A through storage chamber 108A
It is discharged to 106A. Note that the stabilizer controls the temperature.
Since there is no need to install a heater in the bottom liquid reservoir 101A,
I haven't. Downstream of stabilization tank 96A along photosensitive material PM transport path
Is the guide plate 11 that forms the entry path of the stabilized photosensitive material PM.
0A is placed inclined from the stabilization tank 96A upward.
In the upper direction of the guide plate 110A, the arrow Z in FIG.
Rotating the stabilized photosensitive material PM to the drying unit 50 (Fig. 2
While transporting it toward the roller pair 51).
Squeezing roller pair 109A is provided to squeeze the appropriate stabilizer.
I have. Note that the stabilizer supply roller 98A and each throttle row
The roller pair 109 and 109A are shared with the rollers of the developing tank 96 described above.
Are driven by a common drive source and rotated synchronously. Rotation in the direction of arrow Z in FIG.
While transporting the photosensitive material PM, excess developer and
Squeezing roller pairs 109 and 109A for squeezing and stabilizing
The plane passing through the center of each roller is
Tilt counterclockwise by β from the vertical plane passing through the center
It is provided. Therefore, this squeezing roller pair 109,10
When the photosensitive material PM is sandwiched between 9A, the squeezing roller pair 109 and 109A
The transport direction of the photosensitive material PM in minutes is only the angle corresponding to the angle β
It faces downward. As a result, squeezed developer or stable
During the passage of the light-sensitive material PM, the light-sensitive material PM and the squeezing roller pair 109, 10
Staying between 9A and dropping on the side of the photosensitive material PM
And not. Development while staying at each squeezing roller pair 109,109A during transport of photosensitive material PM
After cutting the photosensitive material PM, the end surface of the liquid or stabilizer
At the same time as passing through
Of each pair of rollers 109 and 109A along the lower roller surface.
Right squeezed liquid collecting plate disposed below the roller pair 109,109A
152 or drop on the left squeeze liquid collecting plate 154,
It flows into the ray 106A. Each scraper roller pair 109, 109A has two scrapers
150 is provided at a position where the tip of the
Have been. The scraper 150 does not scratch the roller surface.
To increase the life of the scraper 150 itself.
For this purpose, use a stainless steel plate or
The stainless steel plate whose end is covered with plastic
It is made of a material having elasticity and elasticity. Scraper 150
Plastics that cover the tip of
Chemical resistance and abrasion resistance to processing liquids such as steal and vinyl chloride
A material having wear resistance can be used. Scraper
Sludge and waste liquid scraped off by 150 are squeezed to the right
Drops on the liquid collecting plate 152 and the left liquid collecting plate 154,
Collected in the liquid receiving tray 106A. In addition, stable with the developing unit 70
A waste liquid tank 156 is provided in each of the waste liquid receiving trays 106 and 106A of the section 72.
Is provided to each tray 106, 106A.
The collected waste liquid is finally discharged through a pipe 158 to a waste liquid collector.
Collected at Nk 156. In the stabilizing section 72 configured as described above, the developing section 70
The developed photosensitive material PM is sent to the squeeze roller pair 109.
The remaining developer is squeezed out, and the free roller 94A
It is carried into the storage part 95A while being guided by the like. Sensitive material P
The stabilization process starts when M enters the stabilizer in the storage section 95A
After passing through the storage section 95A, it is placed on the upper surface of the guide plate 110A.
The stabilization process proceeds during the transfer. Aperture low
Extra stabilization from the top of the photosensitive material PM when passing through the pair 109A
After the agent is squeezed out, the photosensitive material PM is then removed by the roller pair 51.
And transported to the drying unit 50. Next, temperature control in the developer cistern tank 78 etc.
Control device that controls the drive of the developer and developer supply roller 98, etc.
The device 60 will be described with reference to the block diagram shown in FIG.
You. As shown in FIG. 6, the electronic control unit 60 includes a well-known CPU 1
Built-in 62, ROM164, RAM166 and multiple self-running timer counters
Configured as a predicate logic operation circuit with the timer 168 etc.
Connected to each other via a common bus 170.
Exposure output port 172, development input port 174, development output
An input / output interface such as a power port 176 is provided. Ma
The common reservoir 170 of the electronic control unit 60 has a bottom reservoir.
The developer and the developer system in the reservoir 95 communicating with the chamber 101
Temperature adjustment for adjusting the temperature of the developer in the turn tank 78
A circuit 178 and a console for the operator to make various settings
To the control panel 4. The exposure output port 172 has a drive
A motor 13; a cutting device 27 for cutting the photosensitive material PM;
A light source 31 for irradiating the document in the document holder 10 with light;
From the first photosensitive material roll 21 or the second photosensitive material roll 22 to the photosensitive material PM
Motor 28 for sending out the light, and uniformly exposing the photosensitive material PM
LED38 for drying and drying to dry the stabilized photosensitive material
The unit 50 is connected. On the other hand, the developer input port 174
Float sensor 88 and stabilizer cistern in tank 78
Is connected to the float sensor 88A in the
Each roller of the processing unit 44 is connected to the image output port 176.
Drive motor 180, which is driven synchronously, and developer nozzle 82
The inflow solenoid valve 80 and the stabilizer nozzle 82A
The inflow solenoid valve 80A and the developer discharge pipe 108
Installed in the discharged electromagnetic valve 104 and the stabilizer discharge pipe 108A.
The discharged electromagnetic valve 104A and the atmosphere near the guide plate 110.
The sheet heater 112 for heating to a certain temperature
Has been continued. The temperature adjusting circuit 178 includes a developing solution cistern tank.
The temperature of the heater 86 and the tank
A temperature sensor 85 to be detected, and a temperature sensor 85
Two rod-shaped heaters 103 and the liquid in the liquid storage chamber 101.
A temperature sensor 103a for detecting a temperature is connected. this
The temperature adjustment circuit 178 is provided for storing the developer and the developer in the reservoir 95.
Set the temperature of the developer in the cistern tank 78 to a predetermined temperature.
Control the heating of each of the above heaters to maintain the
Signal indicating whether the temperature is maintained within a predetermined temperature range
Is output to the CPU 162. Next, the process executed by the electronic control unit 60 will be described with reference to the flowchart.
This will be described using a chart. Example slit exposure type
The processing executed by the copying camera 1 is executed when the power is turned on.
Initial processing routine until exposure and development are possible
A standby processing routine to wait for exposure and development of the photosensitive material PM
Exposure / development processing routine. No.
FIG. 7 is a flowchart showing an initial processing routine, FIG.
Is a flowchart showing a standby processing routine, and FIG.
9 is a flowchart illustrating a light development processing routine. Power is supplied to the slit exposure type copying camera 1 of this embodiment.
Then, the electronic control unit 60 first performs the initial processing shown in FIG.
Execute the logical routine. This process is a slit exposure type
This is a process that is executed only once when the transfer of the
You. When this routine is started, first, the discharge solenoid valves 104, 10
4A is opened (Step S10), and development is performed.
Tank 96 and stabilization tank 96A (hereinafter, if necessary,
Developer also remains in the processing tank 96).
Or a stabilizing agent (hereinafter collectively treated as necessary)
Drainage time is sufficient for all of the
Only wait (step S20). Stored in processing tank 96
Since the amount of processing solution is fixed, set the discharge time in advance.
It is easy to keep. After waiting for the discharge time, close the discharge solenoid valves 104 and 104A.
(Step S30), then open the inflow solenoid valves 80 and 80A
(Step S40), and further output ports for development.
The process of starting the movement of the drive motor 180 via the port 176
Perform (Step S50). Inlet solenoid valves 80 and 80A open
Then, the developer system tank 78 and the stabilizer system
The processing liquid is supplied from the developer tank 78A to the developer nozzle 82,
Begins to flow out through the chisel 82A and is developed by the drive motor 180
The rotation of the liquid supply roller 98 and the modifier supply roller 98A causes
The processing solution is supplied to the processing tank 96. Since the processing liquid is gradually stored in the processing tank 96,
Wait for the set storage time (time required for storage)
From (Step S60), close the inflow solenoid valves 80 and 80A
Processing (step S70), stop the drive motor 180, and
(Step S80).
As a result, each processing tank 96 is required for development and stabilization processing.
Filled with volume of processing solution. After the storage of the processing liquid is completed, the developer temperature is adjusted.
A start instruction is output to the temperature adjustment circuit 178 (step S9
0). Upon receiving this instruction, the temperature adjustment circuit 178
Energizes heaters 86 and 103 while referring to detection signals of 85 and 103a
The developer solution tank 78 and the developing tank 96
Control the temperature of the developer within the range of about 28 ° C to 31 ° C.
You. The temperature adjusting circuit 178 heats the developing solution and
When controlled within the box, a signal indicating that temperature adjustment has been completed
Is output to the CPU 162. Therefore, this adjustment completion signal is input
(Step S100) until this signal is input.
Is warmed up on the console panel 4
Is displayed (step S110), and initial processing is performed.
Assuming that all the processes have been completed, the process proceeds to the next standby process. By executing the initial processing described above, the slip
The development processing device 40 of the exposure-type copying camera 1 includes a development processing tank.
96, processing solution (developer and
And stabilizing agent) together with sludge, etc.
And the temperature of the developer to the appropriate temperature required for processing.
adjust. In the standby processing executed after the end of the initial processing, FIG.
As shown in FIG.
Key input (step S200) and enter the key
Settings such as the size of the original and the degree of exposure
The user makes settings (step S210). Next, the developer
Stern tank 78 and stabilizer cistern tank 78A
Read the status of each float sensor 88, 88A (step
S220), determine whether the float sensors 88 and 88A are on.
Disconnection is performed (step S230). Float sensor 88, 88A
OFF, ie developer cistern tank 78 or stabilizer
If the level of the cistern tank 78A is low,
Or, instruct the replenishment of stabilizer main tanks 42 and 43,
Perform processing to be displayed on the console panel 4 (step
Step S235), the above-described processing is repeated from step 200. On the other hand, if the float sensors 88 and 88A are both on (the
Step S230) Then, determine whether the temperature of the developer is appropriate
(Step S240) and, if appropriate, the console
Start key on the control panel 4
It is determined whether the switch is turned on (step S250). developing
The temperature of the liquid is adjusted by a temperature adjustment circuit 178,
If the initial processing (Fig. 7) is completed, the temperature should be appropriate
However, the temperature drops due to the failure of the heaters 86 and 103.
I'm checking again here
It is. Incorrect temperature or start key turned on
If not, repeat the processing from step 200 described above.
You. If the start key is pressed and turned on, the exposure
・ Transfer to development processing. Development / exposure processing starts
First, as shown in Fig. 9, it is necessary to start exposure.
Various processes are executed (step S300). Exposure start processing
Here, the transfer of the document holder 10 on which the document is placed
Sending out the photosensitive material PM synchronized with this, and the processing unit
Processing unit 44 by drive motor 180 which is the drive source of 44
This is a process for starting rotation of each roller in the inside. Continued
And turn on the drying unit 50 to start blowing hot air
(Step S310), a flag indicating that the exposure process is being performed.
Is set to the value 1 (step S320), and whether the exposure starts
The first timer counter in the timer 168 that counts the time
(T1 ← 0) to start the data T1 (step
S330). Next, the timer counter T1 and the developer inflow start timing T
Is compared with AON (step S340), and the timer counter T1
It waits until the developer inflow start timing TAON is reached. T
When 1 = TAON, the solenoid valve 80 for inflow of developer is opened
(Step S350), the developer supply roller of the developing tank 96
Start supplying new developer to 98. That is, in FIG.
As shown in the timing chart, from the start of the exposure process
Is delayed and prior to loading the photosensitive material PM into the developing tank 96,
The supply of the developer is started. Next, the timer counter T1 is a solenoid valve for inflow of the stabilizing agent.
It is determined whether the 80A valve opening timing TSON has been reached.
(Step S360). Timer counter T1 is open
When TSON is reached, solenoid valve 80A for inflow of stabilizer
Is performed (step S370). In addition, valve opening
Until the timing TSON is reached, the solenoid valve 8
The process proceeds to the next process without performing the process of opening 0A. This
As a result, as shown in FIG.
After a predetermined time has passed since the opening of the valve and the stabilization tank for the photosensitive material PM
Prior to loading into 96A, the supply of stabilizer was started.
You. Next, the flag F indicating that exposure is being performed has a value of 1.
It is determined whether or not this is the case (step S380). During the exposure process
The flag F has a value of 1 (set in step S320),
In this case, it is determined whether the exposure has been completed.
Perform (Step S390). Original holder 10
When the necessary exposure processing is completed
In this case, an exposure end process (step S400) is executed. This
Here, the exposure completion processing is performed after the conveyance of the document holder 10 is completed.
Processing to return the original holder 10 to the initial position and sending out the photosensitive material PM
And the cutting device 27 is driven to remove the photosensitive material PM.
This is processing such as cutting at the end of the exposure area. After execution of the exposure end processing (step S400), the exposure processing
Processing for resetting the flag F to a value of 0 is determined as completed.
Now (step S410). After that, the time from the end of exposure
Start the second timer counter T2 in the timer 168
A process (T2 ← 0) is performed (step S420). In the above description, the manuscript has a predetermined length or more,
Before the exposure processing is completed, the tip of the photosensitive material PM is placed in the stabilization tank 96A.
However, the length of the original is short and the exposure
When the processing is completed, the tip of the photosensitive material PM reaches the stabilization tank 96A.
It is possible that they are not. In this case, step S360
Before the judgment in step S390 becomes "YES", the judgment in step S390
The answer is "YES" and the solenoid valve 80A for inflow of the stabilizer is opened before opening.
Because the second timer counter T2 starts
You. After starting the timer counter T2 (step S42
0), the timer counter T2 closes the developer inflow solenoid valve 80
It is determined whether or not the valve timing TAOFF has been reached.
Tep S430). Valve closing timing TAOFF must be reached
If the above processing is repeated from step S360 via the connection point
Return. On the other hand, the timer counter T2 is
If it does, the process for closing the developer inflow solenoid valve 80 is closed.
Is performed (step S440). Valve closing timing TAOFF
Indicates that the end of the photosensitive material PM undergoes development processing in the development processing tank 96.
Developer can be supplied by the developer supply roller 98
It is time to secure time. Therefore, as shown in FIG.
As shown in FIG.
Later, and the end of the exposed photosensitive material PM exits the developing tank 96
The valve is closed at a timing prior to After the inflow solenoid valve 80 is closed or the timer counter T2
After the timing TAOFF, the timer counter
T2 is the valve closing timing TSOF of the solenoid valve 80A for inflow of the stabilizer
It is determined whether or not F has been reached (step S450). Ta
Ima counter T2 must have reached valve closing timing TAOFF
If the connection point is
, The above-described processing is repeated from step S360. one
When the timer counter T2 reaches the timing TSOFF
Process to close solenoid valve 80A for inflow of the stabilizer.
Now (step S460). The valve closing timing TSOFF is a sensitive material
PM ends at stabilization tank 96A
Necessary stabilizer can be supplied by stabilizer supply roller 98A
This is the timing to secure an efficient time. Therefore, FIG.
As shown in the figure, the solenoid valve 80A for inflow of the stabilizer
Before the end of the photosensitive material PM exits the stabilization tank 96A,
The valve is closed at the time of imming. After closing the inflow solenoid valve 80A of the stabilizer, only time T3
Wait (step S470) and let the photosensitive material PM pass through the drying unit 50
The drying unit 50 and the drive motor
A process for turning off 180 and the like is performed (step S480). That
Thereafter, the process returns to the standby processing (FIG. 8), and the console panel 4
The process is repeated from the point where the key input is input. As described above, this slit exposure type copying camera
According to the developing apparatus 40 of the embodiment incorporated in the first embodiment,
In the image processing tank 96 and the stabilizing processing tank 96A, the developer supply low
The photosensitive material PM is transported by the rotation of the
Supply developer and stabilizer uniformly to the inlet side for development and
And stabilization treatment, so they are carried into each treatment tank 96, 96A.
Sensitive material PM is uniformly affected by the new processing solution,
The development and stabilization processes are performed at a constant rate. new
Is supplied to the photosensitive material PM loading side, that is, the developing process start side.
Supply the developer with the appropriate amount of developer.
Can be applied to the photosensitive material PM efficiently in the early stage of development.
In this case, the development quality can be further improved. Moreover, the photosensitive material PM that has exited the processing tanks 96 and 96A can still react.
A small amount of developer and stabilizer
Storing only the silver halide type for direct plate making
Thoroughly develop and stabilize PM material
Can be. Therefore, each processing tank 96, 96A can be downsized,
Processing unit 40 is downsized, and slit exposure type
The size of the rack 1 can be reduced. According to this embodiment, a large amount of developing solution and
Since there is no need to store a stabilizing agent,
Deterioration due to development of the developer and oxidization over time
The plate making quality is always low without any loss or change in force.
Can be kept constant. Low amount of processing solution used overall
Can be reduced. Also, storing a large amount of developer etc.
Sludge remains for a long time and becomes sludge
Never do. Therefore, there is no need to clean the developing tank 96 and the like.
Maintenance work such as washing with water that was conventionally required
No power is needed. Sludge adheres to the bottom of the developing tank 96
And does not hinder the transport of the photosensitive material PM.
Uneven development on the developed photosensitive material PM due to obstruction of the transport of the material PM
There is no problem such as the occurrence. In addition, until a large amount of developer is adjusted to a processable temperature,
Problem of time loss of warm-up at home
Power consumption by only warming a small amount of processing solution.
Is also planned. Also, the developing solution supplied from the developing solution nozzle 82 is supplied to the developing solution.
While spreading along the axial direction of the roller 98, that is, the width of the photosensitive material PM
In the liquid reservoir 143 uniformly over the
Individual bubbles in the single bubble layer on the surface of the liquid supply roller 98
The retained developer (new developer) is supplied to the developer supply roller.
Since it is supplied to the storage unit 95 based on the rotation of 98,
The surface of the developer does not have any irregularities such as ripples.
No. As a result, the developing system based on the disturbance (wave)
(The irregularities that appear on the surface of the photosensitive material
No unevenness occurs. Note that the stabilization layer 96A is also provided with a heater for heating.
It has the same configuration except that it is not
And stabilization have the effect of improving processing quality.
Of course. The embodiment of the present invention has been described above.
The present invention is not limited to the above-described embodiment.
Configuration applied only to one of image processing or stabilization processing,
Replaced the roller that supplies the processing liquid with one that has a single bubble layer
Rough surface polishing roller or porous soft plastic
Feedback control of the developer supply amount.
Device to replace the processing solution remaining in the developing tank
Not only when starting up, but also when processing a given area or number of times
To be executed when is performed, or silver halide method
It has a configuration applied to a developing device for photographic paper and plate making film.
However, various modifications may be made without departing from the gist of the present invention.
Of course, it can be implemented in an embodiment.

【The invention's effect】

As described above in detail, in the photosensitive material processing apparatus of the present invention, a new processing liquid can be uniformly supplied to the processing tank and supplied to the side where the photosensitive material is carried in with the rotation of the roller. Can be used for the processing of the photographic material carried into. Therefore,
There is an excellent effect that the photosensitive material can be efficiently and uniformly processed with a small amount of the processing liquid. Also,
It is also possible to reduce the size of the device. In addition, since there is no need to store a large amount of processing liquid, there is an advantage that development such as sticking of sludge sludge does not occur and maintenance of the processing tank is not required.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a development processing apparatus according to an embodiment of the present invention, FIG. 2 is a schematic configuration diagram showing a slit exposure type copying camera 1 incorporating the development processing apparatus of the embodiment, and FIG. FIG. 4 is a perspective view of a main part of a tank 96, and FIG.
FIG. 5 is a cross-sectional view showing an arrangement of a developer supply roller 98 and a developer temporary storage section 100 in the developing tank 96. FIG. 6 is a block diagram showing a configuration of the electronic control unit 60. 8 is a flowchart showing an initial processing routine executed by the electronic control unit 60, FIG. 8 is a flowchart showing a standby processing routine, FIG. 9 is a flowchart showing an exposure / development processing routine, and FIG. 5 is a timing chart showing operation timings of conveyance and operation of each unit. 1 ... Slit exposure type copying camera 4 ... Console panel 10 ... Document holder 30, Projection optical system 40 ... Development processing unit 42 ... Development solution main tank 43 ... Stabilizer main tank 44 ... Processing Unit, 50 Drying unit 60 Electronic control unit 70 Developing unit 72 Stabilizing unit 82 Developer nozzle 82A Stabilizer nozzle 96 Development tank 96A Stabilization Processing tank 98: Developer supply roller 98A: Stabilizer supply roller 100: Temporary storage of developer 100A: Temporary storage of stabilizer 162: CPU, PM: Sensitive material

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁶ , DB name) G03D 3/00-5/06

Claims (2)

(57) [Claims] 1. A processing apparatus for processing a silver halide type photosensitive material such as photographic paper, photosensitive paper or film for direct plate making, a processing tank for storing a processing solution for the photosensitive material, A photosensitive material carrying means for carrying a material into the processing solution in the processing tank; and a immersion part immersed in the processing solution stored in the processing tank, provided over a width direction of the photosensitive material carried into the processing tank. A processing liquid supply for supplying a predetermined amount of new processing liquid and temporarily storing the processing liquid between the roller rotatably supported at the position and the roller and a member pressed against the outer periphery in the width direction thereof; Means for rotating the roller in the same direction as the direction in which the photosensitive material is carried in, and supplying the stored processing liquid to the processing tank along with the surface of the rotating roller. Processing equipment. 2. A light-sensitive material processing apparatus according to claim 1, wherein the surface of the roller, the lower part of which is immersed in the processing tank, is made of sponge having a single-cell structure in which bubbles are individually independent.