JPH1083057A - Photographic paper guiding structure for preliminary drying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a guiding structure of preliminary drying device capable of surely guiding a photographic paper to be carried to the downstream side and being easily assembled. SOLUTION: This structure is constituted of a carrying path (shown by arrow (d)) consisting of plural driving rollers and driven rollers in order to carry the photographic paper and a lamp heater 56 provided with a reflector 57 having an aperture paper in order to simultaneously impress light and a heat onto the front and the back surfaces of the photographic paper during carrying. Besides, plural bar-like guide members 55 for guiding are formed into a shape provided with a coupling part 55a inserted in a horizontal hole part 57a formed near the edge part of the aperture part on the downstream side and an extended part 55c held by a recessed part 57b formed at the edge part of the aperture part on the upstream side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic drying apparatus, and more particularly to a photographic paper guide structure having a predrying function for predrying a photographic paper to which moisture has adhered after baking and developing processing to thereby efficiently dry the photographic paper. Things.

[0002]

2. Description of the Related Art Conventionally, continuous photographic paper continuously supplied downstream as rolled roll paper or photographic paper (hereinafter referred to as paper P) obtained by cutting the roll paper into a predetermined size in advance is used on an emulsion surface. After the exposure and printing of the film image in the dark box, the developing, bleaching, and the processing liquids for washing were conveyed so as to sequentially pass through the built-in processing tanks, respectively, and were disposed downstream of the processing tanks. Various photographic printing and developing apparatuses configured to be conveyed in a drying apparatus, completely dried and then discharged to the outside have been put to practical use.

For example, US Pat. No. 5,307,114
According to the photographic printing / developing apparatus disclosed in JP-A No. 10-146, the continuous roll paper built in the paper magazine by blocking light is cut into a desired cut size in advance by using a cutter unit, and then the emulsion surface is removed. Is transferred to the exposure baking section with the image facing up, and after the image of the film set in the scanner is exposed and baked to the desired size, it is transported downstream and contains processing liquid for development, bleaching, and water washing. An apparatus has been proposed in which water is removed and dried by using a drying device after being sequentially conveyed through a treated tank, and discharged to the outside in an orderly and orderly manner.

According to this apparatus, a drying apparatus of a hot air drying system is employed. This hot air drying system is composed of a nichrome wire heater for generating hot air, a large blower, and a rack device for continuously transporting the photographic paper in a substantially U-shape. This is to finish the drying.

[0005] The drying apparatus of the hot-air drying system configured as described above is excellent in safety because the heat generated from the nichrome wire heater is constantly removed by blowing the blower, and is excellent in safety. It is widely used because it is uniformly and gradually dried, so that it is less likely to curl, and because it is transported by a rack device, running stability can be easily ensured.

However, according to the drying apparatus of the hot air drying method configured as described above, since a long time is required for the drying, the length of the transport path by the rack apparatus is set longer for the drying, and the desired drying is performed. It is necessary to secure processing capacity. For this reason, in the related art, the length of the rack conveyance path is long as long as the height of the drying device is made as high as possible in the vertical direction. As a result, the size of the drying device is increased, and the size of the entire development printing apparatus is increased. I have.

Therefore, in order to employ a relatively small hot air drying type drying apparatus, a preliminary drying apparatus for preliminary drying a photographic paper containing a large amount of water is provided.
It is conceivable that a small hot air drying type drying apparatus can be used even in the case of a model having a high processing capacity.

[0008]

However, in order to provide such a preliminary drying device, it is necessary to simply provide a pre-drying device when a jam such as a heater break occurs during or during the conveyance of the photographic paper. It is necessary to ensure so-called maintainability by enabling access to the heater section.

Further, since the water content is not uniform between the emulsion side and the base side of the photographic paper, the degree of drying differs depending on the humidity and the drying temperature, which may cause curling (warpage) on the photographic paper. In this way, it is necessary to provide a guide for guiding the photographic paper on which the curl has occurred in the middle of the conveyance to prevent contact with the heater, but the guide provided in this manner is exposed to high heat. Therefore, it is usually fixed using a heat-resistant adhesive, and it takes time to complete.

[0010] Accordingly, the present invention has been made in view of the above-mentioned problems, and is intended to provide a small-sized drying apparatus capable of sufficiently securing a drying processing capacity without setting the entire length of a transport path for drying. In addition, the present invention provides a guide structure of a preliminary drying device that can surely guide a photographic paper conveyed from an outlet of a treatment liquid tank for washing to an inlet of a hot-air drying unit downstream and can be easily assembled. The purpose is.

[0011]

Means for Solving the Problems The above-mentioned problems are solved,
In order to achieve the object, according to the present invention, there is provided a photographic paper guide structure of a pre-drying means for pre-drying a photographic paper before drying the photographic paper with a hot air drying means, wherein the pre-drying means is provided with a rinsing treatment. A transport path composed of a plurality of drive rollers and driven rollers for transporting the photographic paper from the outlet of the liquid tank to the inlet of the hot-air drying means, and the amount of light with respect to the front and back surfaces of the photographic paper being transported. A lamp heater section having a reflector having an opening for simultaneously applying heat, and a plurality of rod-shaped guide members for guiding the printing paper downstream along the transport path, A connecting portion that is inserted into a lateral hole formed near a downstream edge, and extends from the connecting portion so as to be held by a concave portion formed on an upstream edge of the opening; Characterized by having a shape having an extending portion To have.

[0012]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

First, FIG. 1 shows a main part of the entire structure of an apparatus main body 1 of a photographic printing / developing apparatus, in which all covers detachably provided to a housing 2 shown by a two-dot chain line are removed. It is an external appearance perspective view, and shows a mode that the paper magazine left storage part 2a set as an option is added. Also, a discharge unit for sequentially discharging and organizing completed photographs is omitted.

As is apparent from the drawing, the apparatus main body 1 is configured to be vertically long and flat so that it occupies as little space as possible, while allowing for easy access to the main parts from the front. ing.

As a result, the apparatus main body 1 is positioned so as to be very close to the wall surface, particularly in a small shop in Japan.
Even when the device is installed, it can be easily used in various operations that should be performed on a daily basis, for example, when exchanging or replenishing a processing solution, and access to the back surface of the apparatus main body 1 is minimized. We are careful about.

The paper magazine left storage section 2a
Is attached detachably from the side of the apparatus 1 indicated by the arrow Y in the figure, and can be added together with the cutter unit 4 so that two paper magazines 3 can be simultaneously loaded as shown in the figure. ing.

In this way, when the usage frequency becomes higher in demand, the paper magazine 3 can be added as needed, and the photo printing completed with only the paper magazine right storage section 2b provided. The developing device 1 is first introduced into a lab, a photo studio, or the like, and the paper magazine left storage unit 2a can be appropriately added based on the frequency of use after the introduction and the consumption of paper including panoramic photos. .

On the other hand, a paper P having a color developing emulsion previously coated on the photographic printing surface side has a predetermined width (for example, 89 mm width).
The continuous roll paper is wound in a continuous state and completely shielded from light, and is rotatably built in the paper magazine 3.

A bar code 20 which records the contents such as the width of the paper P and the type of paper emulsion is attached to the side of the paper magazine 3 so that the paper magazine 3 is stored in the left and right storage sections 2a, 2b. At the time of loading, the contents are read by the barcode detector 21 fixed to the main body side, sent to the processor control section 18, and the energization control to a lamp heater described later is performed according to the read result. ing.

Further, in order to be able to use the paper magazine 3 in common for the left storage section 2a of the paper magazine and the right storage section 2b of the paper magazine, the outer shape is configured symmetrically as shown in the figure. Handles 3a for unloading and loading are provided on both the front and back wall surfaces. Further, a shutter plate (not shown) constituting an automatic opening / closing mechanism of an opening when the roll paper RP shown by a broken line in the drawing is discharged to the outside of the paper magazine 3.
Is configured to automatically open and close in the same manner when inserted into either the right storage section 2b of the paper magazine or the left storage section 2a of the paper magazine, thereby achieving commonality of components and improving usability. I have.

Further, the cutter unit 4 provided in the vicinity of the paper magazine 3 is for cutting the continuously transported paper P into a desired size before printing in the exposure printing unit.
The paper P cut to a predetermined cut size by
First, it is transported to the exposure printing unit 5 provided in the dark box 7,
After being temporarily sucked and fixed on the table 8, preparations for printing are completed, and the film F is sequentially fed to the scanner 6 shown by a two-dot chain line, and the optical system 6a including a zoom lens and the like is moved. An image of a desired size is formed on the paper P by automatic or manual adjustment and printed.

After the printing operation, the paper P is transported to the sub-transporting section 9 disposed above the cutter unit 4 and then transported to the main transporting section 10. A greeting unit 11 for printing a greeting sentence or the like on a photograph while the paper is being conveyed is provided so as to be easily detachable. Therefore, it is necessary to frequently access the main transport unit 10, and the main transport unit 10 is configured to be easily pulled out to the front of the housing 2.

A processing tank 12 for sequentially performing development, bleaching and washing of the baked paper P is provided in a stepwise manner as shown in FIG. The direction is changed by a reversing roll 13 provided between the processing tanks 12 and sent to the paper introduction section 31 of the preliminary drying unit 30 and then to the drying unit 17. It is configured to discharge upward in the direction of arrow d.

The processing tank 12 incorporates a rack device (not shown) for transporting the paper P, and a drive roller and an idle roller, which will be described later, are also disposed inside the preliminary drying unit 30 so that the length of the paper P is less than the total length. However, one common motor 25 is provided as a drive source for these components, and is configured to be driven via power transmission means such as a chain, a sprocket, and a clutch. ing. Further, as shown in the drawing, an opening 32 is formed in the near side of the preliminary drying unit 30 so that the infrared heater unit 33 having one end opened can be gripped by the handle 34 and pulled out (in the direction of arrow F). Thus, while taking out the infrared heater unit 33 easily, it is considered that the paper P which is in the middle of being conveyed by each roller can be removed without interference.

A duct 22 is provided below the preliminary drying unit 30 and constitutes guide means for circulating hot air as described later.
7 enables efficient hot air drying.

On the other hand, a replenishing tank 15 for replenishing each processing solution is provided in a lower portion of the middle stage of the processing tank 12, and a used processing solution can be collected through a drain 14 below the tank. By opening only the front cover (not shown), it is possible to perform all necessary daily operations.

A power supply 19 is provided in the housing 2 occupying the space below the drying unit 17.
A processor control unit 18 for performing various controls related to the processing tank 12 is disposed on the power supply unit 19, and is fixed to the left side surface of the dark box 7 to perform paper conveyance. The control unit 16 is configured to exchange various control data with the main control unit 16 to control the entire apparatus.

FIG. 2 is an enlarged perspective view of the main part showing the state of paper transport in the main transport 10 of FIG.

In this figure, the same reference numerals are given to the components already described, and the description is omitted. The paper P cut by the cutter unit 4 includes a large number of broken lines shown on the table 50. The suction is performed on the table 50 so that no gap is formed by the suction action of the fan 58 in the hole of the table 50. Below the table 50, a suction unit 51 configured to be rotatable in a direction indicated by an arrow d3 by a rotation motor (not shown) is provided so as to be reciprocally movable along a transport direction of the paper (direction indicated by an arrow d1). The printing is performed by holding the paper P at the illustrated position.

After this baking, the paper P is drawn by an arrow d4.
After the paper P1 is conveyed toward the main conveyance unit 10 in the direction and it is determined at the position of the paper P1 in the drawing whether or not it is a large format PL, the paper P1 is conveyed in the direction of arrow d5. Here, when the paper size is small (127 × 89 mm), P3, P4, P3
The transfer is carried out in two rows in the processing tank 12 by transporting the processing tank 12 right and left so as to be located at positions P5 and P6. In this way, the two rows are conveyed in the direction of the arrow d9, and sent to the processing tank 12, so that the processing speed can be increased. In addition, panoramic photo (254 x 89m
As in the case of m), the sheet can be transported in two rows in the same manner in the case of a vertically long sheet.

On the other hand, when it is desired to perform printing in a direction perpendicular to the transport direction of the film loaded in the film scanner 6, the turning motor is driven 90 degrees in the direction of arrow d3 to perform printing. It is configured so that a plurality of different sizes can all be printed with the same type of paper as it is.

FIG. 3 is an external perspective view of the device 1 shown in FIG. In the figure, the same components as those already described are denoted by the same reference numerals, and the description thereof will be omitted. Undescribed components will be described. The preliminary drying unit 30 is provided in a limited volume portion just above the duct 22 as shown in the figure. A paper P containing water sent out from the processing tank 12 with the emulsion surface Pa upward in the direction of arrow d is introduced into the inside from the introduction part 31, and after preliminary drying, the drying unit with the emulsion surface Pa facing upward The rack 17 is provided between the sponge rollers 26 constituting the rack device. Thereafter, the drying unit 17 is configured to be conveyed upward so as to be substantially detoured by the reversing roller 27 and discharged.

A slider 38 and a bracket 37 are fixed to a side plate 29 serving as a base for enabling the preliminary drying unit 30 to be moved and fixed in the front-rear direction with respect to the housing 2. Fixed portion 2d and 2k described later
And then fixed to the housing 2 with screws or the like. On the other hand, the infrared heater unit 33 which can be taken in and out of the preliminary drying unit 30 through the opening 32 as described above is fixed to the base by the screw 73.

A first crossflow fan 35 is provided above the preliminary drying unit 30 so as to extend in the front-rear direction as shown in the figure, and introduces outside air into the inside. And a second cross flow fan 36 for exhausting air to the drying unit 17 side is provided.

Further, a main cross flow fan 23 which is in an upright position as shown in the drawing is disposed behind the drying unit 17. In the vicinity of this, the main heater unit 2
4, a heater having a plurality of built-in nichrome wire heaters 24a having a length substantially equal to the entire length of the main crossflow fan 23 is provided, and heat generated by continuous energization to the heater 24a is generated by the main crossflow fan 23. By sending air,
Hot air is introduced into the drying unit 17. In this way, warm air is blown to the emulsion surface Pa side of the paper P, then exhausted forward, and then sent to a cover (not shown) to be exhausted into the duct 22. Further, as a configuration in which air is supplied to the heater 24 again, waste of heat generation is eliminated as much as possible.

FIG. 4 is a sectional view taken along the line AA of FIG.

In this figure, 2 in the front-back direction of the paper surface.
The paper introduction portion 31, the bracket 37, and the slider 38 are fixed to the side plate 29 provided, and the above-described opening 32 is formed in the side plate 29 on the near side. In order to convey the paper P cut in advance to a predetermined length by the cutter unit 4, each roller is disposed at an interval equal to or less than the length of the paper P. , Idle roller 4
1, drive roller 42, idle roller 43, drive roller 44, idle roller 45, drive roller 4
6 are rotatably supported by the side plates 29.
It is provided in.

Each drive roller is configured to be automatically transmitted to the drive shaft of the motor 25 via a clutch while being fixed to a predetermined position of the housing 2. . In addition, the pre-drying is performed and the pre-dried paper P is conveyed to the downstream drying unit 17 so that the conveyance speeds of the rollers match each other so that slack and unnecessary tension do not occur during conveyance. Like that.

On the other hand, between the side plates 29, a cover 47 having a sectional shape as shown in the drawing, and covers 48 and 49 are fixed, and the inside of the unit 30 is sealed.
In addition, these covers 47, 48, and 49 have paper P
For example, optical first sensors S1-1 (light emitting unit) and S1-2 (light receiving unit), and second sensors S2-1 (light emitting unit) and S2- 2 (light receiving unit).

The first cross flow fan 3
5, a filter 52 is provided on the outside air introduction side, and a filter 5 is provided on the exhaust side of the second first cross flow fan 36.
3 are provided.

On the other hand, the infrared heater unit 33 is provided with a pair of lamp heaters 56 each provided with a reflector 57 so as to face each other as shown in FIG. Along the road,
While the paper P is being conveyed in the direction of the arrow d shown by the broken line, infrared rays are irradiated from the front and back to evaporate water actively. As the lamp heater 56, a lamp for generating mid-far infrared light is preferable. In the present embodiment, for example, a model number 13
A mid-infrared heater sold as 847z-98 is preferred. According to this type of lamp heater, an appropriate heat ray is generated at the same time as the light quantity is generated, which is convenient for removing moisture from the paper surface.Also, since the heat ray reaches the deep part of the paper, there is an advantage that curling is less generated. is there.

A guide wire 55 is fixed to the opening of the reflector 57 as described later.
Is guided between the rollers 42, 41, 44, and 43, and the paper P on which the curl has occurred due to an unexpected cause.
Move to the lamp heater 56 side to prevent the contact. Further, when the paper jam occurs, the interference with the paper can be prevented when the infrared heater unit 33 is pulled out to the near side as described above.

On the other hand, the paper transport path for transporting the paper as indicated by the arrow d shown by the broken line is configured so as to have an inclination angle of about 45 degrees with the horizontal plane, thereby ensuring a desired transport length.
This can be achieved without changing the design of the housing by reducing the overall height of the lower drying unit 17. That is, by providing the preliminary drying unit 30, drying can be performed even if the transport length of the drying unit 17 of the hot air drying type by the rack device is shortened, so that the drying unit 17 can be lowered. Accordingly, a model having a low overall height can be adopted as the cross flow fan 23. Similarly, the overall height of the main heater unit 24 can be reduced.

With this configuration, the total height of the drying unit 17 can be increased by about 60% as compared with the conventional case where only the drying unit 17 having a high overall height is used.

Next, as an operation, the cross flow fan 3
When the conveyance of the paper P is started from the driving states of the rollers 5 and 56, the presence of the paper is detected by the first sensor S1, and the lamp heater 56 is energized as described later to perform the preliminary drying. At this time, the outside air filtered by the filter 52 by the air blown by the cross flow fan 35 flows in the direction of the arrow H1, and then flows in the direction of the arrow H2 between the cover 47 and the reflector 57 in the direction of the arrow H2. Then, after passing through the portion sandwiched by the lower reflector 57 and being sucked by the lower cross flow fan 36, it is filtered through the filter 53, and is directed to the opening 17 a of the drying unit 17 in the direction of arrow H 4. Will flow. Such air supply prevents overheating of the lamp heater 56 and directs air supply to the paper P to promote drying.

FIG. 5 shows the preliminary drying unit and the drying unit 1.
7 is an external perspective view showing the state of air supply in FIG. 7, and in this figure, the air supply direction is indicated by double arrows H and K.

As shown, the main cross flow fan 23
Is driven to rotate in the direction of the arrow, and the amount of heat generated by the heater wire 24a of the main heater unit 24 is sent into the main drying unit 17 by blowing air in the direction of the arrow K1 (arrow K2).

For this reason, the side surface of the drying unit 17 is open. After drying with hot air in this way, arrow K
The air is supplied in three directions. At this time, the air flows into the duct 22 as a result of the air colliding with the cover (not shown), and flows through the duct 22 in the direction of arrow K4 to the main heater unit 24. Air is supplied (arrow K5).

By performing such air circulation, warm air is effectively used to minimize power consumption.
Air supply from the preliminary drying unit 30 (arrow H4)
Is hot air that has been filtered, and by introducing it, drying can be promoted.

FIG. 6 shows the infrared heater unit 3.
FIG. 3 is a plan view of FIG.

In this figure, the infrared heater unit 33
Has a base 60 to which the handle 34 is fixed, and the base 6
0, the extending portions 60a, 60 separated into two as shown in FIG.
b.

The reflectors 5 provided with the lamp heaters 56 indicated by broken lines in the extending portions 60a and 60b are provided.
7 are fixed to each other, and a groove for accommodating a cord 71 shown by a broken line is formed therein. Connected via thermostat. The lamp heater 56 is exchangeably held by the elastic holding force of the spring 63. A power supply connector 69 is connected to the cord 71, and power is supplied through the connector 69 in accordance with a predetermined power supply pattern PN described later.

Therefore, when replacing the lamp heater after the deterioration of the lamp heater or the like, the connector 69 is detached, the handle 34 is gripped, and the infrared heater unit 33 is pulled out from the opening 32 so that the preliminary drying unit 30 is removed.
After taking out everything outside, the replacement work can be performed. In this manner, after the lamp heater 56 has been taken out, the spring 63 holding the lamp heater 56
Is removed, replaced with a new one, loaded, and fixed to the side plate 29 with the screw 73. This is a simple operation, and can be performed by a user other than a service person.

A pin 61 is provided at the end of each of the extending portions 60a and 60b. When the infrared heater unit 33 is set from the opening 32, the pin 61 is automatically inserted into the concave portion 66 of the back side plate 29. The extension portions 60a, 60b
Are fixed in a stationary state. Also,
Guide rails 62 are provided outside the extension portions 60a and 60b, respectively, and the groove portions 8 provided between the side plates 29 are provided.
The guide rails 62 can be guided and inserted into the guide rails 0 so that the positioning and fixing shown in the drawing can be performed.

On the other hand, the guide wire 55 is fixed on the opposing surfaces of the extending portions 60a and 60b as shown in the figure, and is configured so that paper can be conveyed therebetween.

FIG. 7 shows that the guide wire 55 is connected to the reflector 5.
FIG. 7 is an external perspective view showing a state of attachment to 7
(A) shows a state before mounting, and (b) shows a state after mounting. In this drawing, the conventional method of fixing the guide wire 55 to the reflector 57 has been exclusively using a heat-resistant adhesive. As a result, the work process requires time and cannot be easily replaced. Therefore, as shown in the figure, as a method of fixing the guide wire 55 to the reflector 57, the guide wire 55 can be easily and reliably fixed.

Referring to this fixing method, first, in FIG. 7A, left and right protrusions 57c and 57d and a bottom 57b are formed on one of the edges serving as openings of the reflector 57 by press working or the like. I have. In addition, an elliptical opening 57a is formed in a portion opposed to the opening by press working or the like.

On the other hand, as shown in FIG.
A pair of right and left base portions 55c is formed by bending a wire having a diameter of about 2 mm made of a stainless steel wire or the like.
, End portions 55d and 55e, a hanging portion 55b continuous with the base portion 55c, and a relay portion 55a.

In order to fix the guide wire 55 formed as described above to the reflector 57, first, the relay portion 55a is inserted into the opening portion 57a in the direction of the dashed arrow, and then the end portions 55d and 55e are gripped. After narrowing in the direction of the arrow, the left and right projections 57c, 57d
So as to be placed on the bottom portion 57b.

Subsequently, in FIG. 7B, the projections 57d and 57c are bent downward by using a tool or a special jig, and the ends 55d and 55e are fixed to complete the assembly.

The completion of the opening 5
The 7a side can protrude upward from the end of the reflex 57, so that paper is conveyed in the direction of arrow d.
It can be prevented from being caught.

Next, regarding the energization control of the lamp heater 56 of the preliminary drying unit, FIG. 8A is a block diagram for controlling the preliminary drying device, and FIG. A description will be given based on a flowchart of the energization control of the lamp heater 9.

First, in FIG. 8A, a signal line for detecting the rotation state of the motor 25, a signal line for transmitting the bar code content of the bar code detector 21, and a Each signal line of the first sensor S1 and the second sensor for detecting the presence / absence is connected. Also,
An energization waveform generator 18a storing a reference pattern for generating energization patterns P1, P2, P3, and P4 as shown in FIG. 8B is provided in the processor controller 18.

On the other hand, the processor control section 18 obtains a predetermined power supply (5 v, dc) from the power supply section 19 and the heater driver 70 is connected to the power supply section 19.
v, 200 v can be supplied to the lamp heater 56 of the infrared heater unit 33 via the connector 69.

The heater driver 70 is connected to the processor control unit 18, amplifies the reference pattern from the conduction waveform generation unit 18a, and supplies the conduction patterns P1, P2, P3,
P4 is generated by an amplification relay circuit (not shown) and supplied to the lamp heater 56.

In FIG. 8B, the energization pattern P1
Turns on and off alternately a 50 V AC voltage with a period of about 100 ms. In the energization pattern P2, at the start of energization, the AC voltage 50V is turned on for about 100 ms, and subsequently, the AC voltage of 200V is energized for about 1 second. The energization pattern P3 alternately turns on and off a voltage of about 200 V of the AC power supply with a cycle of 100 ms. The energization pattern P4 is a pattern in which, at the start of energization, the voltage 200v of the AC power supply of about 160 ms is turned on and turned off for about 40 ms.

Next, a control example of the power supply control of the lamp heater will be described with reference to the flowchart of FIG.

When the control is started by activating the apparatus 1, first, in step S1, the paper magazine 3 is started.
In accordance with the loading operation, the content recorded in the barcode 20 is read by the detector 21, and the width of the paper, the type of emulsion, and the like are temporarily stored in the processor control unit 18. Subsequently, the process proceeds to step S2, where the motor 2
A determination is made as to whether 5 is rotating. In this step S2, for example, immediately after the activation of the device 1, it takes time for initialization or the like, and if the motor 25 has not been activated and is not rotating yet, the process proceeds to step S3. Without energizing the lamp heater 56, the process proceeds to step S12 and returns.

If it is determined in step S2 that the motor 25 is rotating, the flow advances to step S4 to energize the lamp heater 56 in the energizing pattern 1 described above, thereby energizing the lamp heater 56 at a voltage of 50 V or less. A so-called preheat is performed.

In step S5, the first sensor S1 determines whether or not the state in which the paper P has been conveyed has been detected.
To determine whether or not it is the first sheet of paper. When the absence of paper is detected in step S5, the process returns to step S4, and continues with the energization pattern P1.
To energize.

If it is determined in step S6 that the paper is the first sheet, power is supplied in the power supply pattern P2,
Activate the lamp so that it has a standard brightness in a short time. On the other hand, if it is determined in step S6 that it is not the first sheet, the process proceeds to step S8, and it is determined whether or not it is the second or subsequent sheet P, and it is determined that the sheet is the second or subsequent sheet. Then, the process proceeds to step S9, and the power is supplied in the power supply patterns P4 and P3.

That is, based on the content of the paper in step S1, for example, in the case of roll paper having a large width, the electrification pattern P4 is selected. In the case of a roll paper having a narrow width, the pattern P3 is selected.

As described above, when the paper containing moisture is heated by being conveyed by each roller while being energized, the temperature of the paper containing the water is rapidly increased. Will be able to end. In addition, an optimum lamp heater 5 according to the paper width and type.
6 can be controlled.

Subsequently, in step S10, the second sensor S2
Is performed, and if it is determined that the paper has passed, the flow advances to step S11 to turn off the heater and return.

By controlling the lamp heater 56 as described above, an appropriate heat ray is generated at the same time when the light quantity is generated.
Curling can be prevented, and the paper can be removed from the paper surface before being sent to the drying unit 17.

According to the above embodiment, only the case where the pre-cut paper is dried has been described. However, the present invention is not limited to this case. Of course. In this case, the distance between the drive rollers and the idle rollers is increased so that the rollers can be conveyed with fewer rollers.

The actual time required for removing the connector 69 for replacing the infrared heater unit 33, removing the screws, replacing the lamp heater, and fixing the lamp heater again was about one minute. Further, by making the infrared heater unit 33 a separate structure, it is possible to share the assembling work and obtain a secondary merit that the assembling workability can be improved.

[0078]

As described above, according to the present invention, it is possible to provide a small-sized drying apparatus capable of ensuring a sufficient drying processing ability without setting the entire length of the transport path for drying. It is possible to provide a guide structure of the preliminary drying device, which can surely guide the photographic paper conveyed from the outlet of the liquid tank to the inlet of the hot-air drying means downstream and can be easily assembled.

[0079]

[Brief description of the drawings]

FIG. 1 shows a paper magazine left storage unit 2a which is set as an option, in which all covers provided partially detachably with respect to a housing 2 are removed to show a main part of the entire configuration of the photoprinting and developing device 1. FIG. 4 is an external perspective view showing a state in which is added.

FIG. 2 is an external perspective view of a main part enlarged showing a state of paper conveyance in a main conveyance 10 of FIG.

FIG. 3 is an external perspective view of a drying unit including a preliminary drying unit.

4 is a sectional view taken along the line AA of FIG. 3;

FIG. 5 is an external perspective view showing the flow of air in a drying unit including a preliminary drying unit.

6 is a plan view of the infrared heater unit 33. FIG.

FIG. 7 is an external perspective view showing a state in which a guide wire is attached to a reflector, wherein (a) shows a state before attachment,
(B) shows a state after mounting.

FIG. 8A is a block diagram for controlling a predrying device, and FIG. 8B shows an energization waveform of a lamp heater.

FIG. 9 is a flowchart of control of energization of a lamp heater.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Photo printing and developing apparatus, 2 ... Housing, 2a ... Paper magazine right storage part, 2b ... Paper magazine left storage part, 3 ...
Paper magazine, 4 cutter unit, 5 exposure baking unit, 6 film scanner, 7 dark box, 8 table, 9 sub-transport unit, 10 main transport unit, 11 greeting unit, 12 processing tank, 13 ... reversing roll,
14 drain, 15 refill tank, 16 main control unit,
17: drying unit, 18: processor control unit, 19
... power supply unit, 20 ... barcode, 21 ... barcode detector, 22 ... duct, 23 ... main cross flow fan, 24
... Main heater unit, 25.
3 infrared heater unit, 34 handle, 35 cross flow fan, 36 cross flow fan, 37
Bracket, 38 slider, 39 idle roller, 40 drive roller, 41 idle roller, 4
2: Drive roller, 43: idle roller, 44: drive roller, 45: idle roller, 46: drive roller, 47: cover, 48: cover, 49: cover,
50 table, 51 adsorption part, 52 filter, 5
3 ... filter, 55 ... guide wire, 56 ... (middle infrared) lamp heater, 57 ... reflector, 58 ... fan
60 ... base, 61 ... pin, 62 ... guide rail, 63 ...
Spring, 66 recess, 69 connector, 70 heater driver, 71 cord, 73 screw, P paper (print paper), RP roll paper, S1 first sensor, S
2 ... second sensor

Claims (3)

[Claims] 1. A photographic paper guide structure of a predrying means for predrying photographic paper before drying it by a hot air drying means, wherein said predrying means is provided with an outlet from a treatment liquid tank for washing. A transport path composed of a plurality of drive rollers and driven rollers for transporting the photographic paper to the entrance of the drying device, and an opening for simultaneously applying light and heat to the front and back surfaces of the photographic paper being transported A plurality of rod-shaped guide members for guiding the printing paper downstream along the transport path, near the edge on the downstream side of the opening. Having a connecting portion inserted into the formed horizontal hole portion, and an extending portion extending from the connecting portion so as to be held in a concave portion formed at an edge on the upstream side of the opening. Printing of predrying means, characterized in that Guide structure. 2. The predrying means, comprising: a cover portion for shielding outside air together with the base portion; and an air supply portion for taking in outside air into the inside of the cover portion and exhausting the outside to the outside. In a shape to avoid the transport path,
The photographic paper guide of the predrying apparatus according to claim 1, wherein when the guide member is attached or detached through a side opening formed in the base, interference with a photographic paper being conveyed is prevented. Construction. 3. The guide member has an end bent from an end of the extending portion so as to be located below a protruding portion extending from both corners of the recess so as to approach each other. Further having, first, the connecting portion is inserted into the lateral hole portion, and then the end portion is located below the protruding portion,
3. The photographic paper guide structure of a predrying apparatus according to claim 1, wherein the protruding portion is plastically processed and fixed to the opening of the reflector.