JP2005274688A - Photosensitive material magazine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a photosensitive material magazine capable of keeping good quality of a photosensitive material contained in a body case. <P>SOLUTION: The photosensitive material magazine 1 comprises a tightly closed box-shaped body case 2 for housing printing paper P; a heat exchange plate 20 of an electrothermal cooling device 9 which is disposed in the body case 2 and cools the case inside N of the body case 2; a temperature sensor 5 for sensing the temperature of the case inside N; and a first control means 28 of actuating the electrothermal cooling device 9 to allow the heat exchange plate 20 to absorb heat so that the temperature of the case inside N sensed by the temperature sensor 5 is made close to a previously set target cooling temperature. The heat exchange plate 20 of the electrothermal cooling device 9 fulfills the function of a cooling means as a heat absorption plate, but when the polarity of DC electricity supplied to the electrothermal cooling device 9 is reversed, the heat exchange plate 20 becomes a radiator plate and fulfills the function of a heating means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a photosensitive material magazine containing photosensitive materials such as photographic paper used in a photographic processing apparatus.

  Conventionally, as this type of photosensitive material magazine, for example, the one disclosed in Patent Document 1 below is known. The photosensitive material magazine disclosed in the above document is mainly composed of a sealed box-shaped main body case that accommodates photographic paper wound in a roll shape. The main body case is formed with an outlet for taking out the photographic paper out of the case, and the outlet is sealed with a light shielding member that prevents light from entering. Such a photosensitive material magazine is installed in a photographic processing apparatus. Then, the photographic paper fed out from the outlet of the photosensitive material magazine is sent to the print processing unit of the photographic processing apparatus, printed, and further developed by the development processing unit, then dried by the drying processing unit, and the print discharge unit. It comes to be discharged from.

Japanese Patent Laid-Open No. 2001-213037 (paragraph numbers [0030] and [0047], FIG. 1)

  By the way, it is known that when a photosensitive material such as photographic paper is stored at a high temperature, the quality is deteriorated. The same applies to a case where a roll-shaped photosensitive material is placed in a magazine and set for a long time in a photographic processing apparatus with a small processing amount. Alternatively, there is a problem that when condensation occurs on the surface of the photosensitive material, the quality of the photosensitive material is degraded.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a photosensitive material magazine that can satisfactorily maintain the quality of the photosensitive material accommodated in the main body case.

  In order to achieve the above object, a photosensitive material magazine according to the present invention includes a sealed box-shaped main body case that houses a photosensitive material, a cooling unit that is provided in the main body case and cools the inside of the main body case, A temperature sensor that detects the temperature and a first control unit that operates the cooling unit so that the temperature inside the main body case detected by the temperature sensor approaches a preset target cooling temperature are provided.

  Further, in the above configuration, the first control means is constituted by a temperature switch that stops the operation of the cooling means that is operating when the temperature inside the main body case detected by the temperature sensor reaches a preset target cooling temperature. Is.

  In each configuration described above, a heating unit provided in the main body case for heating the inside of the main body case, and a heating unit for bringing the temperature inside the main body case detected by the temperature sensor closer to a preset target heating temperature. And a second control means to be operated.

  Further, in each of the above-described configurations, the time measuring means for measuring the time, and the heating means is operated when the time measured by the time measuring means is a time that is a predetermined time in the past from the preset scheduled use time of the magazine. And a third control means.

  In each of the above-described configurations, the cooling means is an endothermic plate of an electrothermal cooling element.

  And in each above-mentioned structure, a heating means is used as the heat sink of an electrothermal cooling element.

  According to the photosensitive material magazine of the first aspect of the invention, the first control means operates the cooling means to cool the inside of the main body case so that the detected temperature inside the main body case approaches the target cooling temperature. If a low temperature suitable for storage of the photosensitive material is set as the target cooling temperature, the inside of the main body case is maintained at a temperature suitable for the photosensitive material. Therefore, the quality of the photosensitive material can be kept good.

  In the photosensitive material magazine according to the second aspect of the present invention, the first control means comprises a temperature switch, and the temperature switch is activated when the detected temperature inside the main body case reaches the target cooling temperature. Since the operation of the cooling means inside is stopped, the inside of the main body case is kept near the target cooling temperature. Therefore, the quality of the photosensitive material can be satisfactorily maintained with a simple and inexpensive configuration.

  According to the photosensitive material magazine of the third aspect of the invention, the second control unit operates the heating unit so that the detected temperature inside the main body case approaches the target heating temperature. (For example, normal temperature or use temperature of the photosensitive material). Therefore, even if the photosensitive material has been cooled and stored so far, no condensation occurs when the photosensitive material is taken out from the photosensitive material magazine and used.

  Further, according to the photosensitive material magazine of the invention of claim 4, the third control means operates the heating means when the time counted reaches a time that is a predetermined time in the past from the scheduled use start time of the magazine. The photosensitive material can be brought into a state in which condensation does not occur at the scheduled use time of the magazine (for example, at the start of work). Therefore, the use of the photosensitive material can be started immediately when the magazine use scheduled start time comes.

  Further, according to the photosensitive material magazine of the invention of claim 5, since the cooling means is constituted by the heat absorbing plate of a general-purpose electrothermal cooling element, it is possible to provide an inexpensive magazine in which parts can be easily obtained and replaced. .

  Similarly to the above, according to the photosensitive material magazine according to the sixth aspect of the invention, since the heating means is constituted by the heat radiating plate of the general-purpose electrothermal cooling element, it is easy to obtain and replace parts and provide an inexpensive magazine. be able to.

The best embodiment of the present invention will be described with reference to the drawings. The embodiment described below is merely an example embodying the present invention, and does not limit the technical scope of the present invention. FIG. 1 is an external view of a photosensitive material magazine according to an embodiment of the present invention, and FIG. 2 is a configuration diagram including a cross section taken along line AA in FIG.
In each of the drawings, a photosensitive material magazine 1 according to this embodiment includes a sealed box-like main body case 2 that accommodates photographic paper (an example of photosensitive material) P wound around a horizontal roll core 3. A horizontal guide roller 4 for guiding the photographic paper P fed out from the roll is disposed in the front portion of the case N of the main body case 2. An outlet 6 for taking out the photographic paper P guided by the guide roller 4 out of the case S is formed on the bottom surface of the main body case 2 at a position below the guide roller 4. A light shielding member 19 (see FIG. 3) for preventing light from entering the inside N of the case is disposed around the outlet 6 on the inner surface of the main body case 2.

On the upper surface of the main body case 2, for example, an opening 7 having a size and shape that can accommodate the electrothermal cooling element 9 is formed. The electrothermal cooling element 9 is disposed in the opening 7 of the main body case 2 with the heat transfer plate 20 arranged on the N side in the case and the heat transfer plate 21 arranged on the S side outside the case, for example, a rubber peripheral frame It is attached to the main body case 2 via 8. A temperature sensor 5 for detecting the temperature in the case N is attached through the peripheral frame 8.
The electrothermal cooling element 9 is a so-called Peltier element, in which a P-type semiconductor 22 and an N-type semiconductor 23 are connected via a conductor 24, and a heat transfer plate 20 is fixed to the outer surface of the conductor 24. On the open end sides of the P-type semiconductor 22 and the N-type semiconductor 23, a heat transfer plate 21 is installed via an insulator 25, respectively. Between the conductor 24 and the heat transfer plate 21, there is a resin embedding portion 60 in which a molten resin is poured and solidified. The conducting wires 61 and 62 connected to the end portions of the P-type semiconductor 22 and the N-type semiconductor 23 are connected to the power supply circuit 27 via, for example, the polarity switching circuit 18.

On the upper surface of the main body case 2, a control box 10 that controls the electrothermal cooling element 9 and a battery box 16 that houses a battery 17 that is a DC power source for operating the electrothermal cooling element 9 are installed. When the battery 17 is used as such a DC power source, a portable photosensitive material magazine is provided.
On the outer surface of the control box 10, a keyboard 11 for inputting target temperature data and the like from the outside, a display unit 14 for displaying the target temperature, the switch lever 15 of the polarity switching circuit 18, and AC / DC conversion connected to a commercial power source. A plug 12 for inserting an adapter jack (not shown) and a plug 13 for inserting a jack (not shown) of a DC power source taken out from a photo processing device 35 described later are provided. In addition, the control box 10 is output to the control unit 26 composed of a microcomputer chip, a power supply circuit 27 that outputs a DC power source according to a control command amount from the control unit 26 to the electrothermal cooling element 9, and the electrothermal cooling element 9. A polarity switching circuit 18 for switching the polarity of the DC power supply is accommodated.
The control unit 26 is configured with a central processing unit (CPU) 29 as a center, and the CPU 29 is capable of bidirectional communication with a random access memory (RAM) 32 and a timer circuit 33 for timekeeping via an I / O port 30. It is connected. Further, a read only memory (ROM) 31, a keyboard 11, and a temperature sensor 5 are connected to the signal input side of the I / O port 30, and a display unit 14 and a power supply circuit 27 are connected to the signal output side. Has been.

  The photosensitive material magazine 1 is installed on the upper surface of the main body of the photographic processing apparatus 35 as shown in FIG. In this photographic processing device 35, the photographic paper P fed out from the photosensitive material magazines 1 and 1 is cut by the cutting unit 63 while being conveyed by the conveying roller 36 through the receiving port 34 on the upper surface of the apparatus main body into the apparatus. The photographic paper P thus sent is sent to the print processing unit 39. In the print processing unit 39, the photographic paper P is exposed by light from the light source 38 during the conveyance on the endless belt 37, and an image is printed thereon. Then, the photographic paper P on which the image is printed is sent to the development processing unit 40 and sequentially passes through the developing solution, the bleaching solution, and the stabilization solution, and then is dried by the drying processing unit 41. The print is discharged from the print discharge section 42 onto a discharge tray (not shown).

In the photosensitive material magazine 1 configured as described above, for example, the battery 17 of the battery box 16 is used as a DC power source. However, it is also possible to use a DC power supply from the AC / DC conversion adapter or the photo processing device 35 instead of the battery 17 by inserting the jack of the AC / DC conversion adapter or the jack from the photo processing device 35 into the plugs 12 and 13. is there.
First, when a user presses a key related to the start of magazine temperature control from the keyboard 11, the temperature control execution program stored in the ROM 31 is downloaded to the CPU 29 and the program can be executed. Then, the CPU 29 causes the display unit 14 to display the content requesting the setting input of the target cooling temperature in the case N. When the user sets and inputs a target cooling temperature (for example, 5 ° C.) from the keyboard 11, the target cooling temperature data is temporarily stored in the RAM 32. The target cooling temperature may be set and input from the keyboard 11 and stored in the RAM 32 in advance before using the magazine. Next, the CPU 29 outputs an operation command signal to the power supply circuit 27 and causes the display unit 14 to display an operation request for the switch lever 15 of the polarity switching circuit 18. Therefore, when the user operates the switch lever 15 of the polarity switching circuit 18 from “neutral” to “cooling”, the DC power source whose polarity (positive and negative) is set to “cooling” is electrically cooled from the power supply circuit 27. The element 9 is energized. Then, the heat in the case N is absorbed by the heat transfer plate 20 due to the Peltier effect of the electrothermal cooling element 9, and the case N is cooled. At the same time, heat is radiated from the heat transfer plate 21 to the outside S of the case.
Then, the CPU 29 periodically monitors the temperature in the case N detected by the temperature sensor 5 and from the power supply circuit 27 to the electrothermal cooling element so as to bring this detected temperature close to the target cooling temperature stored in the RAM 32. 9 controls the amount of power of the DC power supply energized. By such operations of the control unit 26 and the power supply device 27, the temperature in the case N is maintained at about 5 ° C. suitable for storing the photographic paper P. Accordingly, the quality of the photographic paper P can be suppressed and the quality can be kept good.

  That is, the temperature of the in-case N detected by the temperature sensor 5 is set in advance from the control unit 26 including the CPU 29 and the power supply circuit 27 that adjusts the DC power supply according to a command from the CPU 29 and supplies power to the electrothermal cooling element 9. The first control means 28 is configured to operate the electrothermal cooling element 9 so as to approach the target cooling temperature to absorb heat from the heat transfer plate 20 (an example of a cooling means and an endothermic plate).

  By the way, when the photographic paper P held at about 5 ° C. in the photosensitive material magazine 1 is fed out as it is into the photographic processing apparatus 35 having a use temperature of 35 ° C., for example, condensation occurs on the surface of the photographic paper P and the photographic paper. There is a risk of degrading the photosensitive emulsion of P. Therefore, it is conceivable to raise the temperature of the photosensitive material magazine 1 to room temperature or the use temperature in the photographic processing device 35 before feeding it to the photographic processing device 35. Incidentally, the operating environment temperature of the photographic processing apparatus 35 is 10 to 35 ° C. In this case, for example, 35 ° C. is set and input from the keyboard 11 to the control unit 26 in advance and stored in the RAM 32 as the target heating temperature. Therefore, the user manually operates the switch lever 15 of the polarity switching circuit 18 to switch the polarity of the DC power source to “for heating”. Then, the heat transfer plate 20 that has been the heat absorption plate until then is switched to the heat dissipation plate, the heat transfer plate 21 is switched to the heat absorption plate, and the inside N of the case is gently heated. Also in this case, the CPU 29 is a DC power source that is energized from the power supply circuit 27 to the electrothermal cooling element 9 so that the temperature detected in the case N by the temperature sensor 5 approaches the target heating temperature (35 ° C.) stored in the RAM 32. Control the amount of power. By the operation of the control unit 26 and the power supply device 27, the temperature in the case N is raised to the operating temperature of the photographic processing device 35. The photographic paper P fed to the photographic processing device 35 after the temperature rise does not cause condensation on the surface, and does not cause deterioration of the photosensitive emulsion.

  That is, the temperature of the in-case N detected by the temperature sensor 5 is set in advance from the control unit 26 including the CPU 29 and the power supply circuit 27 that adjusts the DC power supply according to a command from the CPU 29 and supplies power to the electrothermal cooling element 9. The second control means 28a is configured to operate the electrothermal cooling element 9 so as to approach the target heating temperature, and to generate heat in the heat transfer plate 20 (example of heating means and heat radiating plate).

  It is also possible to automatically execute the temperature raising process before using the magazine using the timer circuit 33. In this case, the manual polarity switching circuit 18 is omitted, and a polarity switching circuit 18a (two-dot chain line in FIG. 2) that changes the polarity of the DC power source from the power source circuit 27 in accordance with an operation command from the CPU 29 is provided. Provided in the power supply circuit 27. Then, the magazine usage start time data for starting the use of the photosensitive material magazine 1 and the predetermined time (temperature increase processing time) data retroactive to the past from the magazine usage start time are set and inputted by the user in advance from the keyboard 11 and stored in the RAM 32. Stored. In this example, for example, 9 am at the start of business is set as the scheduled start time for magazine use, and for example, 2 hours before the start of business is set as a predetermined time that goes back from the scheduled start time for magazine use.

In the photosensitive material magazine 1, the timer circuit 33 outputs the time data measured to the CPU 29. The CPU 29 outputs a command signal to the polarity switching circuit 18a of the power supply circuit 27 when the time measured from the timer circuit 33 reaches 7:00 am, which is two hours after the scheduled use start time of the magazine (9:00 am). The polarity of the DC power source is switched from “for cooling” to “for heating” by the circuit 18a. Further, the CPU 29 controls the amount of DC power supplied from the power supply circuit 27 to the electrothermal cooling element 9 so that the temperature in the case N is slowly raised from 5 ° C. to 35 ° C. over 2 hours. By gently heating in this way, the temperature of the inside N of the case reaches 35 ° C. in a short time and is kept at 35 ° C. for a long time, so that the photographic paper P is not deteriorated. P is not locally ignited to cause nonuniformity in the quality of the photosensitive emulsion. Since the photographic paper P is in a state where condensation does not occur at the start of business, the photographic processing work of the photographic paper P can be started immediately.
That is, the time measured by the timer circuit 33 from the control unit 26 provided with the CPU 29 and the power supply circuit 27 that adjusts the DC power supply in accordance with a command from the CPU 29 and supplies power to the electrothermal cooling element 9 is used for the preset magazine use. The third control means 28b is configured to operate the electrothermal cooling element 9 to generate heat at the heat transfer plate 20 (an example of a heating means and a heat radiating plate) when a time that goes back a predetermined time from the scheduled start time.

  In the above-described embodiment, an example in which the control unit 26 including a microcomputer chip or the like is used is shown. However, here, a photosensitive material magazine in which the control unit 26 is omitted is shown in FIG. In the illustrated photosensitive material magazine 1a, a control box 10a containing a manual polarity switching circuit 18 and a power supply circuit 27 and a battery box 16 containing a battery 17 are installed on the upper surface of the main body case 2 (see FIG. 1). ing. A temperature switch 45 is provided in the middle of the conductive wire 62 connecting the polarity switching circuit 18 and the N-type semiconductor 23 of the electrothermal cooling element 9 based on the temperature of the case N detected by the temperature sensor 5. Has been. The temperature switch 45 includes, for example, a general-purpose bimetal contact (not shown), and includes the temperature sensor 5 integrally. The temperature sensor 5 is inserted into the case N through the peripheral frame 8 described above. The temperature switch 45 is configured to change the setting of the on / off temperature by adjusting the bimetal contact interval by manual operation of the temperature setting knob 46. In this example, the on / off temperature of the temperature switch 45 is set in advance to 5 ° C. (target cooling temperature) by manual operation of the temperature setting knob 46.

In this photosensitive material magazine 1a, when the temperature in the case N detected by the temperature sensor 5 falls below 5 ° C., the bimetal contact of the temperature switch 45 is turned off and the power supply to the electrothermal cooling element 9 is stopped. Cooling by the heat transfer plate 20 is stopped. That is, the temperature switch 45 and the temperature setting knob 46 constitute the first control means 28A. As a result, the temperature in the case N is maintained at the target cooling temperature. Therefore, the case N can be stored without deteriorating the photosensitive material, and an inexpensive photosensitive material magazine 1a can be realized with a simple configuration.
It is also possible to employ a temperature switch (not shown) that turns off the power supply when heating exceeds a predetermined target heating temperature.

  As described above, since the electrothermal cooling element 9 shown in each embodiment is widely used as a small and light module, it can be easily obtained and replaced and can be obtained at low cost, and the production cost of the photosensitive material magazine can be reduced. Contribute to.

  Next, FIG. 5 shows a photosensitive material magazine that keeps the inside N of the main body case 2 at a low temperature or raises the temperature to a use temperature by a refrigeration cycle operation. The photosensitive material magazine 1 b shown in FIG. 5 includes a refrigeration cycle device 47. The refrigeration cycle device 47 is driven by an inverter motor 50 to compress and discharge refrigerant, a four-port flow path switching valve 51 for switching the refrigerant flow path, and a fan 58 installed outside the case S of the photosensitive material magazine 1b. A heat source side heat exchanger 52 that is cooled by blowing air from, a refrigerant throttle valve 53 that squeezes the refrigerant in the pipe to adiabatic expansion, and a use side heat exchanger 54 that is attached to the main body case 2 of the photosensitive material magazine 1b. Yes. The compressor 49, the four-port flow switching valve 51, the heat source side heat exchanger 52, and the refrigerant throttle valve 53 are connected to each other via refrigerant pipes 55, 55, 55,. A part between the use side heat exchanger 54 and a part between the use side heat exchanger 54 and the four-port flow path switching valve 51 are connected to each other through flexible pipes 56 and 56, respectively. Thus, a heat pump type refrigerant circuit capable of switching between cooling and heating is configured.

  In this refrigeration cycle apparatus 47, components other than the use side heat exchanger 54, the return side and return side flexible pipes 56, 56, and the temperature sensor 5 are accommodated in the casing of the outer unit 48 installed outside the case S. Has been. A heat transfer plate 57 made of metal such as aluminum is disposed in the opening 7 and is attached to the main body case 2 via a rubber peripheral frame 8. On the upper surface of the heat transfer plate 57, the use side heat exchanger 54 and the detection end of the temperature sensor 5 are installed in a detachable manner. The control unit 26 used in the photosensitive material magazine 1b includes a CPU 29, a ROM 31, a RAM 32, and a timer 33, like the control unit 26 described in the previous embodiment. Output destinations of the power circuit 27 are an inverter motor 50, a valve drive motor (not shown) of the four-port flow switching valve 51, and a valve opening drive motor (not shown) of the refrigerant throttle valve 53.

  An example in which the inside N of the case is “cooled” by the photosensitive material magazine 1b having the above configuration will be described. First, when a setting input relating to “cooling” is made from the keyboard 11, the control unit 26 communicates the discharge side of the compressor 49 and the heat source side heat exchanger 52, and at the same time, the suction side and the use side heat of the compressor 49. The DC power from the power circuit 27 is output to the valve drive motor of the four-port flow switching valve 51 so that the exchanger 54 communicates, and the flow path of the four-port flow switching valve 51 is set as indicated by a solid line. Is done. Next, the compressor 49 is started by supplying power to the inverter motor 50. Then, as indicated by a solid line arrow R, the gas refrigerant compressed to a high temperature and high pressure by the compressor 49 flows into the heat source side heat exchanger 52 through the four-neck flow path switching valve 51 and is blown from the blower 58. The refrigerant is cooled by heat exchange with the outside air and becomes a low-temperature and high-pressure refrigerant. The low-temperature and high-pressure refrigerant is throttled by the refrigerant throttle valve 53 to become a gas-liquid two-phase refrigerant and flows into the use side heat exchanger 54. The gas-liquid two-phase refrigerant in the use side heat exchanger 54 exchanges heat with the heat in the case N via the heat transfer plate 57, and evaporates to become a low-temperature and low-pressure gas refrigerant. After that, the flow returns to the compressor 49. In this way, the refrigerant cycle operation of the cooling specification is repeated. At this time, the inside N of the case is cooled by the refrigerant in the use side heat exchanger 54 to be low temperature. Similarly to the above, the temperature in the case N is controlled by operating the power supply circuit 27 by the control unit 26 and adjusting the output of the inverter frequency and the electric energy to the inverter motor 50.

  Subsequently, an example of “heating” the case N will be described. When the setting input relating to “heating” is made from the keyboard 11, the control unit 26 communicates the discharge side of the compressor 49 and the use side heat exchanger 54, and at the same time the suction side and the heat source side heat exchanger of the compressor 49. The DC power supply from the power supply circuit 27 supplies power to the valve drive motor of the four-neck flow path switching valve 51 so as to communicate with 52. Thereby, the flow path of the four-neck flow path switching valve 51 is set as indicated by a broken line. Therefore, the compressor 49 is activated by supplying power to the inverter motor 50. Then, as indicated by the broken arrow Q, the gas refrigerant compressed by the compressor 49 and having a high temperature and high pressure flows into the use side heat exchanger 54 via the four-neck flow path switching valve 51 and passes through the heat transfer plate 57. Radiates heat to the N in the case, resulting in low temperature and high pressure. The low-temperature and high-pressure refrigerant is throttled by the refrigerant throttle valve 53 to become a gas-liquid two-phase refrigerant and flows into the heat source side heat exchanger 52. The gas-liquid two-phase refrigerant in the heat source side heat exchanger 52 evaporates by heat exchange with the outside air blown from the blower 58 to become a low-temperature and low-pressure gas refrigerant, and is sucked into the compressor 49 through the four-neck flow path switching valve 51. Return to the side. In this way, the refrigerant cycle operation of the heating specification is repeated. The inside N of the case is heated by the refrigerant in the use-side heat exchanger 54 to increase the temperature, and is maintained at a target heating temperature (for example, 35 ° C.). Also in this case, the temperature in the case N is controlled by adjusting the operation of the power supply circuit 27 by the control unit 26.

  Generally, in the refrigeration cycle system, the cooling capacity and heating capacity on the use side can be increased by increasing the discharge capacity of the compressor. However, in this photosensitive material magazine 1b, the compressor 49 is accommodated in the external unit 48 attached externally. It is easy to adopt a compressor with a large discharge capacity. For this reason, even a photosensitive material magazine having a relatively large content can be adequately accommodated.

In each of the above embodiments, an example in which both the cooling means and the heating means are provided is shown. However, the present invention is not limited thereto, and includes, for example, a photosensitive material magazine provided with only the cooling means.
Also, the present invention includes those in which the heat transfer plate 20 of the electrothermal cooling element 9 and the use side heat exchanger 54 of the refrigeration cycle apparatus 47 are dedicated to the cooling means, respectively, and a general-purpose electric heater or the like is used as the heating means.
The form of the photographic paper accommodated in the case is not limited to the above-described roll shape, and includes, for example, a photographic paper folded into a sheet shape and accommodated.

1 is an external view of a photosensitive material magazine according to an embodiment of the present invention. It is a block diagram containing the AA arrow cross section in FIG. It is a schematic block diagram of the photographic processing apparatus in which the said photosensitive material magazine is used. It is a block diagram of the photosensitive material magazine which concerns on another embodiment of this invention. It is a block diagram of the photosensitive material magazine which concerns on other embodiment of this invention.

Explanation of symbols

1, 1a, 1b Photosensitive material magazine 2 Main body case 5 Temperature sensor 9 Electrothermal cooling element 11 Keyboard 20 Heat transfer plate (cooling means or heating means, heat absorbing plate or heat radiating plate)
26 control section 27 power supply circuit 28, 28A first control means 28a second control means 28b third control means 29 CPU
32 RAM
33 Timer circuit (time measuring means)
45 Temperature switch 46 Temperature setting knob 54 User side heat exchanger (cooling means or heating means)
N Case P Photo paper (photosensitive material)

Claims (6)

  A sealed box-like main body case for containing a photosensitive material, a cooling means provided in the main body case for cooling the inside of the main body case, a temperature sensor for detecting the temperature in the main body case, and the inside of the main body case detected by the temperature sensor A photosensitive material magazine, comprising: first control means for operating the cooling means so that the temperature approaches a preset target cooling temperature.   The first control means comprises a temperature switch that stops the operation of the cooling means that is operating when the temperature inside the main body case detected by the temperature sensor reaches a preset target cooling temperature. Photosensitive material magazine.   Heating means provided in the main body case for heating the inside of the main body case, and second control means for operating the heating means so that the temperature inside the main body case detected by the temperature sensor approaches a preset target heating temperature. The photosensitive material magazine according to claim 1, wherein the photosensitive material magazine is provided.   Timekeeping means for measuring time, and third control means for operating the heating means when the time measured by the timekeeping means reaches a time that is a predetermined time in the past from a preset scheduled use start time of the magazine. The photosensitive material magazine according to claim 3.   The photosensitive material magazine according to any one of claims 1 to 4, wherein the cooling means is a heat absorbing plate of an electrothermal cooling element.   6. The photosensitive material magazine according to claim 3, wherein the heating means is a heat radiating plate of an electrothermal cooling element.

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