JPH05333441A - Instant photographic device - Google Patents

Abstract

PURPOSE:To suppress the waste of a supply, to improve profitability and to enhance working efficiency by evading or reducing such a fear that the supply which is carried to a black box and which is in the midst of developing processing is exposed. CONSTITUTION:A control part 401 executing such control that the opening and closing state of the cover of a black box tray, and the carrying positions of a negative film and a positive film or the like are detected by the various kinds of sensors in a sensor group 411, an image forming action is interrupted based on the detected result and the opening state of the cover is warned through an operation part 403 is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a peel-apart type instant photographic device which uses a photosensitive sheet and an image receiving sheet in combination, and more specifically, it has a lid which can be opened and closed and which is exposed to light after a developer is spread. The present invention relates to an instant photographic device provided with a dark box in which a joined body of a property sheet and an image receiving sheet is stored.

[0002]

2. Description of the Related Art In a peel apart type instant photographic device, a photosensitive sheet (negative film) and an image receiving sheet (positive sheet) are used in combination. In the peel-apart type camera (instant photographic device), since the supply (negative film and positive sheet) used is small, a negative film and a positive sheet are combined in advance and used as a pack film.

However, such a pack film is
As the size increases, the handling becomes worse and there is a drawback that it becomes impractical. Therefore, in a large-sized instant photographic device that uses a relatively large supply, a method of separating the negative film and the positive sheet and mounting them separately on the device (hereinafter referred to as an independent mounting method) is adopted. ing. In the independent placement method, the positive sheet is usually used as a positive sheet assembly with attached pods containing a developer and accessory parts such as a trap mask for holding the excess developer after spreading.

In an independent placement type instant photographic apparatus, a negative film is generally set in the apparatus by loading it in a cartridge in a roll form, and a positive sheet is set outside the apparatus because it has no photosensitivity. It In image formation, first, the negative film is pulled out from the cartridge and exposed, and then the exposed negative film and the positive sheet are overlapped to spread the developer enclosed in the pod, and the state is left for a while. (The development process is executed during this time). An image is obtained by peeling the negative film from the positive sheet after the completion of this development process.

In the developing process, it is necessary to prevent the unexposed portion of the negative film from being exposed at least until the image is not affected (for example, a developing time of 4 minutes is about 1 minute). Therefore, the development process is performed in a dark place, or a light-shielding layer (black) is provided on the back surface of the positive sheet so that it can be exposed in a bright place, and when the positive sheet is a transparent sheet for OHP,
Measures are taken to disperse carbon in the developer so as to have a light-shielding property.

However, if a black light-shielding layer (black layer) is provided on the back surface of the positive sheet, a white layer must be further coated on the black layer in order to improve writing and appearance on the back surface. The process becomes complicated,
There are inconveniences that the cost of the sheet increases, and there is a problem that the image on the image receiving surface is totally dim because the black layer is transparent. If the white layer is thickened in order to solve the problem that the color of the image sinks, which will be described later, the thickness of the positive sheet becomes about 0.3 to 0.4 mm, and besides, the cost of the positive sheet due to the coating increases. However, there is a problem that curling easily occurs due to humidity. Further, when the carbon is dispersed in the developer, the color reproducibility is remarkably deteriorated, and the carbon is uniformly dispersed in the manufacturing process, so that the manufacturing process is complicated.

As described above, as a means for avoiding the inconvenience caused when the supply has a light-shielding property, for example, Japanese Patent Laid-Open No.
As disclosed in Japanese Laid-Open Patent Publication No. 2-76029, there is one in which a dark box for storing the supply after the development of the developer is provided to completely block external light until the development time ends. Also, as a device provided with this kind of dark box, a device added with a function of notifying the end of the developing time of the supply after the developer stored in the dark box and a function of detecting the open / closed state of the lid of the dark box are also invented. Has been done.

[0008]

However, according to the conventional instant photographic device having the function of detecting the open / closed state of the lid of the dark box, it is possible to detect that the lid of the dark box is open during the image formation. Even if the notification is given, for example, the operator may not notice it because he / she is away from the apparatus. Therefore, the supply of the developer after the developer has been transferred to the dark box with the lid open is wasted. There was a problem of reducing the economic efficiency.

Further, according to the conventional instant photographic device having a function of notifying the end of the development time of the supply housed in the dark box, the development time is ended when a predetermined time elapses after the supply is conveyed to the dark box. Although it is informed, for example, when the image is formed again by conveying the supply to the dark box with the open lid and wasting the supply, after the supply by the image formation is conveyed again to the dark box. Since the end of the development time in the previous image formation may be notified, the operator mistakenly takes out the supply before the end of the development time from the dark box and obtains a good image even though the operator can obtain a good image. However, there is a problem that it may waste money and reduce economic efficiency.

Here, the waste of the supply when the image is formed is that the operator of the apparatus wastes the time required for the image formation, which hinders quick work and reduces work efficiency. I will let you.

The present invention has been made in view of the above, and by avoiding or reducing the risk of exposure of the supply during the development processing carried to the dark box, waste of the supply is suppressed and economic efficiency is improved. The purpose is to improve work efficiency as well as improve.

[0012]

In order to achieve the above object, the present invention uses a combination of a photosensitive sheet and an image receiving sheet, and accommodates the photosensitive sheet / image receiving sheet assembly after the developer is spread. An open / close detecting means in a peel-apart type instant photographic device including a dark box, an open / close detecting means for detecting an open / closed state of a lid of the dark box, and a position detecting means for detecting positions of various sheets conveyed in the apparatus. The present invention also provides an instant photographic device equipped with control means for controlling interruption of an image forming operation and warning control through a predetermined warning means based on the detection result of the position detection means.

In the above-mentioned structure, the control means detects that the open / close detecting means detects the open state of the lid and the position detecting means detects that the photosensitive sheet has not reached a predetermined position. The image forming operation is put in a standby state after transporting the flexible sheet to a preset position,
It is desirable to warn via the warning means that the lid is open. Further, the control means preferably restarts the image forming operation when the opening / closing detection means detects the transition of the lid from the open state to the closed state when the opening / closing detection means places the image forming operation in a standby state.

In the control means, the lid is in the open state when the open / close detecting means detects the open state of the lid and the position detecting means detects that the photosensitive sheet has reached a predetermined position. It is desirable to warn that through the warning means. Further, when the opening / closing detection means detects the transition of the lid from the open state to the closed state, the control means detects that the photosensitive sheet has not reached the predetermined position by the position detection means, and the formed image is displayed. When the position detecting means detects that the photosensitive sheet has reached a predetermined position, it notifies that there is no influence of light, and warns that the formed image may be deteriorated by light. Notification via means is desirable.

In order to achieve the above object, the present invention uses a photosensitive sheet and an image receiving sheet in combination,
A dark box in which the photosensitive sheet / image receiving sheet joint after the developer has been spread is stored, an open / close detection unit that detects the open / closed state of the lid of the dark box, and the development of the photosensitive sheet / image receiving sheet joint stored in the dark box In a peel-apart type instant photographic device provided with an informing means for informing the end of the processing time and a position detecting means for detecting the position of a photosensitive sheet conveyed in the apparatus, the open / close detecting means and the position detecting means are detected. The present invention provides an instant photographic device equipped with control means for controlling the stop of the notification means based on the result. It is preferable that the control means stops the notification means when the opening / closing detection means detects the open state of the lid after the position detection means detects that the photosensitive sheet has reached a predetermined position.

Further, in the above-mentioned structure, it is desirable that the opening / closing detecting means is a light amount detecting means for detecting the light amount. Further, it is preferable that the opening / closing detecting means has a light amount detecting means for detecting the light amount in the dark box, and detects the open / closed state of the lid by the integrated value of the light amount detected by the light amount detecting means.

[0017]

The instant photographic device of the present invention detects the open / closed state of the lid of the dark box and the conveyance position of the photosensitive sheet during the image forming operation, and conveys the photosensitive sheet based on the detection result. By controlling the interruption of the image forming operation such as stopping at a predetermined position and the output control of the warning, it is possible to avoid or reduce the risk that the supply during the developing process is exposed. Also, based on the open / closed state of the lid of the dark box and the detection result of the supply position of the supply, it is determined whether the supply is exposed or not and the operator is notified. When it is determined that the supply is exposed, the development time is measured. Stop.

[0018]

Embodiments of the instant photographic apparatus of the present invention will be described below in the order of the first embodiment, the second embodiment, the third embodiment, and the fourth embodiment. The first embodiment is
(1) Configuration of positive sheet assembly, (2) Configuration of negative film, (3) Configuration and operation of entire device,
(4) Schematic block diagram, (5) operation unit, (6) role and layout of each sensor, and (7) control operation of control unit will be described in this order.

First Embodiment (1) Configuration of Positive Sheet Assembly In the first embodiment, a positive sheet (image receiving sheet) is filled with a developer, a pod, and a trap for holding excess developer after spreading. It is used as a positive seat assembly by attaching accessories such as a mask.

FIG. 1 shows a positive sheet assembly 100.
Shows the configuration of. As shown in the figure, the positive sheet assembly 100 includes a black leader 102 attached to the front end of the positive sheet 101 on the image receiving surface side, a pod 103 that contains a developer and is attached to the leader 102.
A front end mask 104, both side masks 105, and a trap mask 106, which are arranged in order to improve an image of an end portion of an image region (a × b region shown in FIG. 1) of the positive sheet 101, The rail member 107 is attached on the side mask 105.

The developer that has flowed out of the pod 103 can be spread evenly on the positive sheet 101 with a thickness substantially the same as that of the rail member 107 and both side masks 105. Three marks (not shown), which are positive sheet type identification codes, are formed on the back surface.

The amount of the developer is larger than that required for image formation so that the developer reaches the rear end of the image area sufficiently.
Enclosed inside. The excess developer is evenly spread to the rear end of the image area, and then is accumulated between the trap mask 106 (portion D in FIG. 1) and a negative film 200 (portion D ′ in FIG. 2) described later. This prevents excess developer from leaking out into the apparatus and adhering to the developing roller, the conveying path, and the like to be contaminated.

(2) Construction of Negative Film In the first embodiment, as shown in FIG. 2, a negative film (long photosensitive sheet) 200 wound in a roll is used. The negative film 200 is made of a long photosensitive strip (for example, 36 sheets can be photographed) and is wound into a roll with the latent image forming surface (photosensitive surface) inside, and the negative film cartridge 329 (see FIG. 3). (See)). Although not shown, the negative film 200 has a structure in which light-shielding paper is provided at the front and rear ends thereof.

(3) Overall Structure and Operation of Device FIG. 3 is a schematic cross-sectional view showing the overall structure of the instant photographic device according to the first embodiment. , An optical system unit 301 for forming an image on a predetermined position (exposure surface), a negative film 200 is conveyed and exposed to the predetermined position, and further, the positive sheet assembly 100 is aligned and overlapped, and a developer is spread between them. , A transport unit 302 for transferring and forming an image on the positive sheet assembly 100.

The optical system unit 301 includes a contact glass 303, a first traveling body 3 including a first mirror and a light source.
04, a second traveling body 305 including a second mirror and a third mirror, a third traveling body 307 including a lens 306, a fourth mirror, and a fifth mirror, and a sixth mirror 308.

Here, a fluorescent lamp 408 (see FIG. 4) is used as a light source included in the first traveling body 304, and a document placed downward on the contact glass 303 is moved (scanned) in parallel with the contact glass 303. While irradiating. At this time, in order to keep the optical path length constant, the second traveling body 305 is scanned in the same direction at a speed half that of the first traveling body 304. Further, the configuration is such that the magnification and the conjugate length at the time of zooming are adjusted by moving the lens 306 and the third traveling body 307.

The reflected light from the original is, as shown in the figure,
It is reflected by the second and third mirrors, and the lens 30
Slit exposure is performed at the exposure position A through the sixth, fourth, fifth and sixth mirrors.

The transport unit 302 includes a photosensitive negative roll film (negative film 200) feeding portion, a negative film cutter portion for cutting the fed negative film 200, and a negative film feeding / feeding portion for feeding and exposing the negative film 200. It is composed of an exposure section, a positive sheet assembly transport section, and a development section. Below, negative film 2
00 (not shown), a negative roll film feeding unit, a negative film cutter unit, and a negative film transport / exposure unit will be described in detail.

The negative film 200 is housed in the negative film cartridge 329 and mounted on the apparatus, and a mark (not shown) indicating the type of the stored negative film 200 is provided on the side surface of the negative film cartridge 329. .. The negative film 200 accommodated in the negative film cartridge 329 has pull-out rollers 312a, 3a.
12b passes between the rotary blade 313a and the fixed blade 313b (cutter) and is conveyed onto the guide plate 314,
It is sent to the intermediate rollers 315a and 315b. In the vicinity of the intermediate rollers 315a and 315b, a sensor S2 (infrared reflection type sensor) for detecting a jam of the sheet pulled out from the negative film cartridge 329 is provided, and the negative film cartridge 329 to the negative film 200 is provided.
A sensor S8 (infrared reflection type sensor) for detecting the pulled-out sheet is arranged at the exit for pulling out the sheet.

When the leading edge of the conveyed negative film 200 is detected by the sensor S1 at the exposure position A (or a predetermined time after the detection), the first traveling body 304 and the second traveling body 305 start scanning. Then, after the negative film 200 is nipped by the intermediate rollers 315a and 315b, the exposure / latent image forming process is executed at the exposure position A on the guide plate 314.

Assuming that the conveying speed of the negative film 200 during exposure / latent image formation is V _N , the traveling speed of the first traveling member 304 is V ₁ and the copy magnification is m, the negative film 200 is
The transport speed V _N is controlled so as to satisfy the relationship of V ₁ = V _N × 1 / m.

The exposure position A is a flat surface over the slit area, and the drawing rollers 312a, 31a
2b and the nip height of the intermediate rollers 315a and 315b, or higher than that. Further, the intermediate rollers 315a and 315b and the pull-out roller 312
The peripheral speeds of a and 312b are substantially the same, and after a predetermined time (after being nipped by the intermediate rollers 315a and 315b or when the exposure is started) after the negative film 200 is detected by the sensor S1, the pull-out roller 312.
The driving of a and 312b is stopped, and it becomes free with an appropriate load. As a result, the negative film 200 can be conveyed on the exposure position A with a slight tension and in a state of being in close contact with the guide plate 314.
The optical path length to the surface and the transport speed can be kept constant.

The negative film 200 which has been exposed and formed with a latent image for a predetermined length is temporarily stopped, and then the rotary blade 313 is used.
When a rotates in contact with the fixed blade 313b, it is cut into a sheet. The stop timing of the negative film 200 is determined by measuring the time t after the sensor S1 detects the leading edge of the negative film 200.

Therefore, the rear end portion of the cut negative film 200 becomes a portion where exposure / latent image formation cannot be performed (in other words, exposure / latent image formation cannot be performed). Specifically, at least the trailing edge portion of the negative film 200 corresponding to the distance from the exposure position A to the tip of the fixed blade 313b (this distance is G) is unused, that is, wasted unnecessarily. It becomes a part. Therefore, the exposure position A and the cutter are set so that the distance G becomes smaller than the distance D ′ (see FIG. 2) from the rear end of the positive sheet assembly 100 to the rear end of the image portion transferred onto the positive sheet 101. By disposing the (rotary blade 313a and fixed blade 313b), waste of an unnecessary portion (rear end portion) of the negative film 200 which is not used for image formation is reduced.

Similarly, the leading end portion of the cut negative film 200 is at least exposed from the exposure position A to the intermediate roller 315.
Although exposure / latent image formation cannot be performed over a length greater than the distance to a, 315b (this distance is H), the distance H
From the tip of the negative film 200 to the negative film 20.
Exposure position A and the intermediate roller 3 so as to be smaller than the distance C ′ (see FIG. 2) to the tip of the latent image portion formed on the image 0.
By disposing 15a and 315b, waste of the negative film 200 can be reduced.

The cut negative film 200 is turned about 180 ° by the rollers 316a and 316b and the guide member 317, and then the guide plates 318a and 318.
It is guided by b, and is further conveyed by the roller 320 until its leading end hits the registration roller 321 (here, in a stopped state).

Next, the transport operation of the positive sheet assembly 100 will be described, and the configuration of the positive sheet assembly transport section will be described in detail. Actually, the transport operation of the positive sheet assembly 100 is executed before the transport / exposure / cut operation of the negative film 200 described above. The positive sheet assembly 100 is configured to be manually inserted one by one to the left side in the figure along the guide plate 311 on the lower right side of the apparatus main body.

When the positive sheet assembly 100 is inserted along the guide plate 311 and the tip of the positive sheet assembly 100 is detected by the sensor S5, the insertion roller pair 322 starts to rotate. The roller of the insertion roller pair 322 is the developer pod 10 attached to the tip of the positive sheet assembly 100.
3 (see FIG. 1) is arranged so as to grip only both ends outside the pod 103 so as not to crush it. The positive sheet assembly 100 is conveyed between the guide plates 323a and 323b by the insertion roller pair 322, is stopped at a predetermined position and is in a standby state, and a printing operation is possible. This stop timing is obtained by counting the time t ′ after the sensor S6 detects the leading end of the positive sheet assembly 100.

Here, the print key 501 (see FIG. 5)
When is pressed, the above-mentioned transfer of the negative film 200
The exposure / cutting operation is executed. The negative film 200 that abuts the stopped registration roller 321 has a roller pair 320 between the guide plate 319 and the guide plate 318b.
It is bent by a certain amount by the conveying force of. After the negative film 200 is bent by a predetermined amount, the registration roller 321 is rotated to convey the negative film 200 between the guide plates 324a and 324b. The rotation start of the registration roller 321 is determined by counting the time after the sensor S3 detects the leading edge of the negative film 200.

By thus bending the negative film 200, the skew correction is performed by aligning the leading edge of the negative film 200 with the nip of the registration roller 321. The leading edge of the negative film 200 conveyed by the rotation of the registration rollers 321 is detected by the sensor S4, and is conveyed to the nip between the developing rollers 325a and 325b. According to the timing from the detection of the sensor S4, the insertion roller pair 322 first rotates to abut against the developing rollers 325a and 325b that stop the positive sheet assembly 100, and the skew correction is performed similarly to the negative film 200. After that, the developing rollers 325a and 325b start to rotate.

Next, the positive sheet assembly 100 waiting at a predetermined position is conveyed first, and then the leading edge of the negative film 200 reaches the nip between the developing rollers 325a and 325b by the rotation of the registration roller 321, and both of them are conveyed. It is conveyed at the peripheral speed of the developing rollers 325a and 325b. At this time, a deviation J occurs between the positive sheet assembly 100 and the tip of the negative film 200, and this deviation J is controlled to be at least smaller than C in FIG.

The developing rollers 325a and 325b rotate while cleaving the pod 103 to allow the developer to flow out, and to spread the developer that has flowed out between the positive sheet assembly 100 and the negative film 200. Developing roller 325
Positive seat assembly 10 that has passed a and 325b
0 and the negative film 200 have a tray 326 and a lid 3
And is discharged to a dark box tray composed of 27. In the dark box tray, the positive sheet 101 is made of a transparent material (for example, OH
If the sheet is a sheet for P) or a thin member, it is for preventing the negative film 200 from being exposed to light so that a good image cannot be obtained.
28 is rotatably and detachably supported by a shaft 28. Further, a sensor S7 for detecting the negative / positive joint body conveyed from the developing rollers 325a and 325b is provided.

The length L of the pod 103 on the positive sheet assembly 100 in the width direction (see FIG. 1) is equal to or shorter than the width b of the image area so that the pod 103 is not pressure-contacted by rollers or the like during conveyance and is not torn. Is becoming Therefore, after the pod 103 is cleaved at the F portion, a certain distance (distance shown in FIG. 1E) is required until it extends to the image area width b. Further, as described above, the deviation J when the negative film 200 and the positive sheet assembly 100 are fitted together may be set shorter than the distance C from the tip of the positive sheet assembly 100 to the cleaving portion F of the pod 103, and therefore, in FIG. Distance C'from the leading edge of the negative film 200 to the leading edge of the latent image portion
Is at least longer than the distance E from the cleavage portion of the pod 103 to the tip of the image forming portion.

(4) Schematic block diagram Next, referring to the schematic block diagram of the control system shown in FIG.
The configuration centering on the control unit 401 will be described. Control unit 40
1 is a switching power supply 4 for supplying power to the apparatus main body.
02, an operation unit 403 for displaying messages and key inputs, a main motor 404 serving as power for driving the negative film 200, the positive sheet assembly 100, a cutter, each roller, and the like, a first traveling body 304, A scanner motor 405 for driving the second traveling body 305 and the lens 306, and a mirror at the time of zooming (second traveling body 3
05) A mirror motor 406 for movement, a lens motor 407 for movement of the lens 306 during zooming, a fluorescent lamp 408 as a light source for reading an original image placed on the contact glass 303, and stable light A lamp drive circuit 409 that applies a voltage to the fluorescent lamp 408 so as to irradiate it, and a heater 410 that supplies heat to the fluorescent lamp 408.
And a sensor group 411 including sensors S1 to S23 (excluding the sensor S20), and various clutches and solenoids (clutch / solenoid group) for controlling the operation of various drive systems.
412 and a sensor S20 that detects the light amount of the fluorescent lamp 408.
And are connected. Further, the switching power supply 402 is provided with a power switch 413 for interrupting the supply of electric power from a power supply external to the device and a noise filter 414 for removing noise included in the electric power externally supplied by the power switch 413. Power is supplied.

Although not shown, the clutch / solenoid group 412 includes a clutch for pulling out rollers 212a and 312b for connecting to a drive system, and a cutter clutch for connecting a cutter (rotary blade 313b) to a drive system for clutches. , A negative feed clutch for conveying the negative film 200, a resist clutch for connecting the registration roller 321 to a drive system, and developing rollers 325a, 325.
There is a developing roller clutch connecting b to the drive system, and a solenoid is a developing solenoid separating the developing rollers 325a and 325b.

In the above-mentioned configuration, the control unit 401 has a function of measuring time by counting clock pulses, detecting signals of various sensors of the sensor group 411,
Also, various clutches and solenoids of the clutch / solenoid group 412 are driven based on the time during which the state of the detection signals of the various sensors is maintained, and various controls such as sequence control are executed.

(5) Operation Unit FIG. 5 shows a plan view of the operation unit 403, which is roughly divided into an input unit for setting the usage conditions of the apparatus and a display unit for displaying the input setting state and the like. To be done. Specifically, a print key 501 for inputting the start of copying, density keys 502a and 502b for adjusting the image density, a reduction zoom setting key 503a, an enlargement zoom setting key 503b,
The same size setting key 503c, original size changing keys 504a and 504b for specifying the size of the original, a positive sheet ejection switch 505 for instructing ejection of the positive sheet assembly 100, a reduction / enlargement zoom value, various error message codes, etc. A display panel 506 having a set value display 506a to be displayed, a trouble display such as jam occurrence, and a message display such as "copy is possible".
And a development time progress indicator 507 that displays the development time progress of the negative / positive joint using an LED.
The development time elapsed indicator 507 indicates that the development time has elapsed by sequentially lighting the LEDs on the right side of the drawing.
And notify the operator of the end.

(6) Role and Layout of Each Sensor The role and layout of the sensors S1 to S23 arranged in the instant photographic device according to the first embodiment will be described with reference to FIG. The sensor S1 is a negative film leading edge detection sensor arranged in front of the cutter on the negative film transport path. The leading edge of the negative film 200 is detected and used for the start timing of the scanner. Specifically, it consists of an infrared reflective sensor. The sensor S2 is a sensor for detecting a jam of the negative film 200 that performs intermediate detection of the negative film on the negative film transport path. Sensor S
It is used to determine a jam in the time from the detection of the tip by 1 to the detection of the sensor S2. Specifically, it consists of an infrared reflective sensor.

The sensor S3 is a sensor for detecting a jam of the negative film 200 for performing the intermediate detection of the negative film on the negative film conveying path. It is used to determine a jam in the time required to convey the negative film 200 from the sensor S2 to the sensor S3. Specifically, it consists of an infrared reflective sensor. The sensor S4 detects before the negative film developing roller. After the negative film 200 is detected by the sensor S4,
The developing rollers 325a and 325b are rotated at a predetermined timing. Further, the rear end of the negative film 200 is detected to release the pressure contact of the developing rollers 325a and 325b (that is,
The timing of separation of the developing roller 325a) is measured. Further, the jam is determined by the time from the rotation of the registration roller 321 to the detection of the negative film 200.
Specifically, it consists of an infrared reflective sensor.

The sensor S5 detects the insertion of the positive sheet assembly 100. When the tip of the positive sheet assembly 100 is detected by the sensor S5, the mark provided on the reader 102 of the positive sheet assembly 100 is a positive sheet type identification code detection sensor (sensor S
It is arranged so as to come to the reading position of 10). Specifically, it consists of an infrared reflective sensor. Sensor S6
Detects the pre-developing roller of the positive sheet assembly 100. A positioning sensor for abutting the leading end of the positive sheet assembly 100 against the developing rollers 325a, 325b when the positive sheet assembly 100 is inserted and conveyed to the developing rollers 325a, 325b. Specifically, it consists of an infrared reflective sensor.

The sensor S7 includes the developing rollers 325a, 32
The presence / absence of the negative / positive bonded body conveyed from 5b is detected. When the sensor S7 detects the tip of the negative / positive joint, the measurement of the time for informing the end of the development time is started, and the printing operation is prohibited while the sensor S7 detects the negative / positive joint. Controlled by the state. Specifically, it consists of an infrared reflective sensor.

The sensor S8 senses the back side of the negative film 200 to detect the presence or absence of the negative film 200. At the same time, the light-shielding papers attached to the front and rear ends of the negative film 200 are identified. Therefore, an infrared reflective sensor is used, and the output of the phototransistor that receives the reflected light is read by the A / D converter and detected by the difference in the output.

The sensor S9 detects the presence or absence of the lid 327 and the open / closed state. Specifically, it consists of a photo interrupter. The sensor S10 is a positive sheet assembly 10
The mark (positive sheet type identification code) provided on the leader 102 of 0 is read. Specifically, three infrared reflection type sensors (sensor S10-
1, 10-2, 10-3) are used.

The sensor S11 reads the mark (negative film type identification code) on the side surface of the negative film cartridge 329. Specifically, three infrared reflective sensors (sensors S11-1, 11-2, 11-3) are used according to the number of negative film type identification marks. The sensor S12 detects the open / closed state of the right door for removing the jam. It consists of a photo interrupter.
The sensor S13 detects the opening / closing state of the left door used for cleaning the developing rollers 325a and 325b and setting the negative film cartridge 329. It consists of a photo interrupter.

The sensors S14-1 and 14-2 detect whether or not the developing rollers 325a and 325b are set. Specifically, it consists of a microswitch. The sensor S15 is composed of a photo interrupter and detects the home position of the scanner. The sensor S16 includes a photo interrupter and detects the home position of the lens 306 for zooming.

The sensor S17 is composed of a photo interrupter, and detects the home position of the zooming mirror (third traveling body 307). The sensor S18 includes a photo interrupter and detects whether the rotary blade 313a is located at the home position.

The sensor S19 includes the developing rollers 325a and 325a.
It is detected whether or not 25b is in the home position.
For the developing rollers 325a and 325b, roller pressing, edge controller ON, roller pressing, edge controller OFF, roller pressing, edge controller ON,
There are four modes of roller release. Of these, the home position is set to the power-on state and the standby state.

The sensor S20 is composed of a photodiode and an operational amplifier and is used for controlling the light quantity of the fluorescent lamp 408.
The detection signal of the photodiode when the light of the fluorescent lamp 408 is incident is amplified by the operational amplifier, and the light amount control is performed using the A / D converted value of the amplified detection signal. The sensor S21 includes a thermistor and detects the temperature of the fluorescent lamp 408. In general, fluorescent lamps have temperature characteristics in light quantity and spectral distribution, and their operating temperature range is limited. Therefore, ON / OFF control of the heater 410 is performed based on the temperature detected by the sensor S21, and the temperature of the fluorescent lamp 408 is maintained in this operating temperature range. The sensor S22 includes a thermistor and detects the temperature. The sensor S23 includes a reed switch and detects the 35 mm projector when the projector is mounted on the contact glass 303. The instant photographic device switches to project mode upon this detection.

(7) Control Operation of Control Section Based on the above configuration, the control operation of the control section 401 of the instant photographic device according to the first embodiment will be described in detail. The control operation of the control unit 401 is roughly classified into a main flow for performing initialization processing, standby processing, copy operation processing, serviceman mode processing, etc. of the apparatus, 2.5 mSec interval for checking and setting various I / Os, and servo. Etc. are classified into a motor encoder for controlling the above, a fluorescent lamp lighting, and an interrupt processing routine such as a scanner motor.

First, as an interrupt processing routine,
The 2.5 mSec interval interrupt process will be described. The 2.5mSec interval interrupt process checks the output status of various sensors every 2.5mSec,
Based on the checked result, various drive controls of the clutch (CL), solenoid (SOL), etc., display control of the operation unit 403, etc. are performed. FIG. 7 is a flowchart showing the dark box tray interrupt processing operation, which is one of the 2.5 mSec interval interrupt processing. Referring to FIG. 7, the open / closed state of the lid 327 of the dark box tray (detected by the sensor 9). The interrupt processing operation according to will be described.

First, it is determined whether or not the lid 327 of the dark box tray is present, that is, whether or not the lid 327 is closed (S7).
01), if it is determined that the lid 327 is closed, the value of the lid flag Ff of the dark box tray is set to 0 (S70).
2), a series of processing ends. On the other hand, if it is determined that the lid 327 is not closed, a warning that the lid 327 is not closed is issued via the operation unit 403 (S703), the value of Ff is set to 1 (S704), and a series of processing is performed. finish. Here, the warning that the lid 327 is not closed in the first embodiment is issued by turning on all the development time elapsed indicators 507 of the operation unit 403, and step S
When the lid-free warning is given in 702, the lid-free warning is released.

Next, the copy operation process, which is one of the processes of the main flow, will be described. This copy operation process is a process performed by pressing the print key 501, and FIGS. 8 to 9 are flowcharts showing the copy operation process.

When the print key 501 is pressed, it is first determined whether or not the 35 mm project mode is set (S8).
01), when it is determined that the 35 mm project mode is not set, the fluorescent lamp 408 is turned on (S802), and the main motor 404, the negative pull-out clutch, and the negative feed clutch are turned on (S803). 3 in step S801
If it is determined that the mode is the 5 mm project mode, then the process of step S803 is executed.

When the processing in step S803 is completed, the leading edge of the negative film 200 conveyed from the negative film cartridge 329 is detected, that is, the sensor S1 is turned on.
If it is determined that the sensor S1 is not turned on (S804), and the sensor S1 is not turned on, a downward feed JAM check is performed and each clutch is turned on, that is, the negative film is processed within a predetermined time after the processing of step S803 is executed. If the leading edge of 200 is not detected, it is determined to be the downward feed JAM (S805), and the process proceeds to the jam processing routine (details are omitted). On the contrary, when the leading edge of the negative film 200 is detected, the scanner is started at the timing according to the set magnification and mode (S806), and the intermediate detection of the negative film 200 using the sensors S2 and S3 (1), Similarly, the JAM check corresponding to (2) and each intermediate detection is executed (S807, S808, S809, S810).

When the negative film 200 is detected by the negative film intermediate detection (2), that is, when it is determined that the sensor S3 is turned on, the negative film 200 sent from the negative film cartridge 329 is waited until the length of the negative film 200 becomes one sheet ( S
811), when the length of the negative film 200 becomes one sheet, the pull-out clutch and the negative feed clutch are turned off to stop the feeding of the negative film 200, the fluorescent lamp 408 is turned off, and the scanner is returned (in reverse). Rotate) and turn on the cutter clutch to turn the negative film 200
Is cut (S812). When the negative film 200 is cut, it is next determined whether or not the rotary blade 313a of the cutter has returned to the home position (S813), and the rotary blade 313.
If it is determined that a has returned to the home position, the cutter clutch is turned off, the negative feed clutch is turned on, and the transport of the negative film 200 is restarted (S814).

After the transfer of the negative film 200 is resumed, the negative feed clutch is turned off at a timing so that the negative film 200 may hit the registration roller 321 and bend its tip to some extent (S815). Then, the value of the lid flag Ff is changed. It is determined whether it is 0 (S816). If it is determined that the value of Ff is not 0, a warning (no cover warning) is issued by lighting the development time elapsed indicator 507 that the lid 327 is open (S817), and step S815.
Then, the process returns to and the standby state is maintained. On the contrary, if the value of Ff is judged to be 0, the registration clutch is turned on at a predetermined timing to rotate the registration roller 321 (S
818), next, it is judged whether or not it has been detected before the negative development, that is, whether or not the sensor S4 has detected the negative film 200 (S819), and if it is judged that the sensor S4 has not detected the negative film 200, the registration is performed. JAM check is performed from the time after the clutch is turned on, and if the sensor S4 does not detect the negative film 200 even after a lapse of a predetermined time, it is determined to be a resist JAM (S820).

When it is determined that the negative development has been detected, the developing roller clutch is turned on after a lapse of a predetermined time from the detection,
Development is performed by rotating the developing rollers 325a and 325b (S821).
It is determined whether or not 7 has detected the tip of the negative / positive joint (S822). When it is determined that the sensor S7 does not detect the negative / positive joint, the sheet discharge JAM check is performed according to the time elapsed after the developing roller clutch is turned on, and the sensor S7 detects the negative / positive position even after a certain period of time has elapsed. If the bonded body is not detected, it is determined as a paper discharge jam (S823).

If it is determined that the sensor S7 has detected the tip of the negative / positive joint, it is then determined whether the value of the lid flag Ff is 0 (S824). If it is determined that the value of the lid flag Ff is 0, step S826 is executed. When it is judged that the value of the lid flag Ff is not 0 on the contrary to the processing, the lid 327
There is no (open) development time elapsed indicator 507
Is displayed to warn the user, and a warning is given by displaying a predetermined error message code on the set value display 506a that the formed image may be affected by the exposure of the negative / positive joint. (Image NG warning) is given (S825). When the image NG warning is given, the sensor S4
Before the negative development, that is, until the sensor S4 detects the rear end of the negative / positive joint body (S826), the sensor S
When 4 detects the rear end of the negative / positive joint, the developing roller clutch and the registration clutch are turned off after a lapse of a predetermined time.
Then, the developing solenoid for separating the developing rollers 325a and 325b is turned on (S827).

The developing time notification timer for notifying the end of the developing time is started from the time when the processing of step S827 is performed (S828), and the main motor 404 is turned off.
Flip (S829), display the time (here 40 seconds) for holding the negative / positive joint in the dark box tray using the development time progress indicator 507 (S830), and finish a series of processes. To do. Although not shown in the flowchart, when the data of the negative presence / absence detection (sensor S8) indicates the value of the light-shielding paper during the copying operation, the length of the negative film 200 fed up to that time can form an image. The length (corresponding to 1 in FIG. 2), if the negative film 200 is short, the copying operation is interrupted, and the negative film 200 and the positive sheet assembly 100 are ejected. The copying operation is executed according to the flow chart while omitting the cutter operation and pulling out the entire rear end portion of the negative film 200 from the negative film cartridge 329.

FIG. 10 is a flow chart showing the interruption processing of the dark box tray during the development processing. This interrupt processing is for detecting whether or not the lid 327 is opened during the development processing, that is, whether or not the negative / positive joined body is exposed, and performing various controls. First, it is determined whether or not the lid 327 of the dark box tray is present, that is, whether or not the lid 327 is closed (S1001), and when it is determined that the lid 327 is closed, the series of processing is terminated as it is,
On the contrary, if it is determined that the lid 327 is not closed, the image N
A G warning is given (S1002), the development time notification timer is stopped (S1003), and a series of processing is ended.

As described above, during the image forming operation, when the open state of the lid 327 is detected before the registration roller 321 starts to convey the negative film 200, the lid 327 is opened because it stands by in this state. It is possible to avoid waste of the supply because the negative / positive joined body is not transported to the tray 326. Also, the lid 327
By displaying that the cover is open using the operation unit 403, the operator can know the open / closed state of the lid 327 even during the copying operation.

When the registration roller 321 detects the open state of the lid 327 after the negative film 200 is conveyed, the operator notifies the operator that the lid 327 may affect the formed image by the light. By immediately closing the lid 327, waste of the supply can be suppressed, or it is possible to know the necessity of performing image formation again. Therefore, it is possible to improve the work efficiency by eliminating the waste of waiting for the end of the developing time. Can be made Further, at this time, since the development time notification timer is stopped, it is possible to perform the development processing with the development time corresponding to each negative / positive joint, and it is possible to prevent the deterioration of the image quality caused by the improper development time.

In the interrupt processing of the dark box tray, the lid flag Ff is set to 1 when the sensor S9 detects the open state of the lid 327.
The value of the lid flag Ff may be set to 1 when the open state of 27 is detected for a predetermined time or more. At this time, in consideration of the environment (state) in which the apparatus is placed, etc., the predetermined time is set to a time in which the formed image is not so affected even when the negative / positive joined body is exposed, thereby wasting the supply. Can be further suppressed. Also, as a positive sheet, OH
The P sheet may be used, that is, there are several types of sheets used as positive sheets. Therefore, in consideration of the types of positive sheets, the set value of the lid flag Ff and the image NG
A warning may be given.

Further, when the development time notification timer is stopped, the sensor for detecting the negative / positive joint in the dark box tray is provided so that the operator does not detect the open state of the lid 327, and The timer may be stopped when the negative / positive joint is taken out. This makes it possible to deal with a case where the operator intentionally opens the lid 327. Further, at this time, the copying operation is prohibited while the sensor detects the negative / positive joint, thereby preventing the operator from forgetting to remove the negative / positive joint.

Further, for the interrupt processing of the dark box tray (see FIG. 7) in the first embodiment, for example, a processing step S110 for issuing an image NG warning as shown in FIG.
1 may be added, that is, processing (function) may be added. As a result, the operator can always know whether or not the negative / positive joined body has been exposed by opening the lid 327 during the developing process, so that it is possible to further reduce the waste of time. It is also possible to improve the use efficiency of.

Further, in the first embodiment, the operator is warned by displaying the open state of the lid 327 during the copying operation. However, the open state of the lid 327 is displayed by using a buzzer or the like. You may use a buzzer together to give a warning. Furthermore, it is possible to count the time when the negative / positive bonded body may be exposed and display the counted time. As a result, the operator can estimate the deterioration of the image quality due to light from the situation where the device is placed.

[Second Embodiment] In the second embodiment, a function is added to the copying operation process (see FIGS. 8 to 9) in the first embodiment. Has the same configuration as that of the first embodiment. In the copy operation processing, the same processing operation is performed up to step S814. Therefore, only the processing operation after step S814 will be described. FIG. 12 is a flow chart showing the copying operation processing after step S814 in the second embodiment.

When the processing of step S814 ends and the transport of the negative film 200 is restarted, the negative film 200
Of the negative feed clutch so that it hits the registration roller and bends the tip to some extent.
F (S1201), and then it is determined whether or not the value of the lid flag Ff is 0 (S1202). If it is determined that the value of Ff is not 0, a lid no warning is given (S1203), the process returns to step S1201, and the standby state is maintained. On the contrary, if the value of Ff is judged to be 0, the registration clutch is turned on at a predetermined timing to rotate the registration roller 321 (S1204), and whether or not the pre-negative development is detected, that is, the sensor S4 is negative. When it is determined whether or not the film 200 is detected (S1205), and the sensor S4 determines that the negative film 200 is not detected, the JAM check is performed at the time after the registration clutch is turned on, and the predetermined time elapses. Even if the sensor S4 is the negative film 200
If it is not detected, it is determined to be registration JAM (S12).
06).

When it is judged that the negative development has been detected, the developing roller clutch is turned on after a lapse of a predetermined time from the detection,
The developing rollers 325a and 325b are rotated to perform development (S1207), and then it is determined whether or not paper discharge is detected, that is, whether or not the sensor S7 detects the leading end of the negative / positive joint (S1208). When it is determined that the sensor S7 does not detect the negative / positive joint, the developing roller clutch is turned on.
The paper discharge JAM is checked according to the time that has elapsed since then, and if the sensor S7 does not detect a negative / positive bonded body even after a certain time has elapsed, it is determined to be paper discharge JAM (S12).
09).

If it is determined that the sensor S7 has detected the tip of the negative / positive joint, it is then determined whether the value of the lid flag Ff is 0 (S1210). If it is determined that the value of the lid flag Ff is 0, step S1213 is executed. When it is judged that the value of the lid flag Ff is not 0 on the contrary to the processing, the lid 3
No development 27 indicates that the development time elapsed indicator 5
A warning is given by turning on 07, and a warning is given by displaying a predetermined error message code on the set value display 506a that the formed image cannot be guaranteed because the light is exposed to the negative / positive joint. Image NG warning) (S1211), and the value of the image NG flag F _N is set to 1
(S1212). When the value of the image NG flag F _N is set to 1, the process waits until the sensor S4 detects before the negative development, that is, until the sensor S4 detects the rear end of the negative / positive joint (S1213), and the sensor S4 detects the negative. When the rear end of the positive joined body is detected, the developing roller clutch and the registration clutch are turned off after a lapse of a predetermined time, and the developing solenoid for separating the developing rollers 325a and 325b is turned on (S1214).

When the processing of step S1214 is performed,
Next, it is determined whether the value of the image NG flag F _N is 0 (S12
15) If the value of the image NG flag F _N is judged to be 0, the development time notification timer for notifying the end of the development time is started (S1216), and the main motor 404 is turned off.
F (S1217), the time to hold the negative / positive joint in the dark box tray (here, 40 seconds) is displayed using the development time progress indicator 507 (S1218), and a series of processing is completed. To do. If it is determined in step S1215 that the value of the image NG flag F _N is not 0, the main motor 404 is turned off (S1219),
A series of processing ends. Although not shown in the flowchart, when the data of the negative presence / absence detection (sensor S8) indicates the value of the light-shielding paper in the middle of the copying operation, the length of the negative film 200 fed up to that time can form an image. The length (corresponding to 1 in FIG. 2), if the negative film 200 is short, the copying operation is interrupted, and the negative film 200 and the positive sheet assembly 100 are ejected. The copying operation is executed according to the flow chart while omitting the cutter operation and pulling out the entire rear end portion of the negative film 200 from the negative film cartridge 329.

As described above, in the second embodiment, when the negative / positive joint is exposed due to the cover 327 of the dark box tray being opened, the copying operation processing is performed without starting the development time notification timer. Since the process is completed, there is an advantage that the working efficiency can be further improved as compared with the first embodiment.

In the second embodiment, the sensor S9
The value of the image NG flag F _N may be set to 1 when the open state of the lid 327 is detected for a predetermined time or longer. As a result, it is possible to prevent wasting a supply that has a small influence on the formed image due to a small exposure amount. Alternatively, a plurality of image NG flags that are flagged according to the time when the lid 327 is kept open may be used, and a preset operation process may be selected depending on the state of each image NG flag.

[Third Embodiment] The open / closed state of the lid 327 in the first and second embodiments is detected by a sensor S9, which is a photointerrupter, and a projection (not shown) of the lid 327 blocks the detection surface. Sometimes the lid 327 is closed,
Further, the lid 327 detects that the lid 327 is open when the protrusion is not blocked. However, even if the sensor S9 detects the closed state of the lid 327, a minute gap is generated between the lid 327 and the tray 326 to expose the negative / positive joint, or the apparatus is sufficiently dark like a dark room. There is a case where it is placed in a place and the opened / closed state of the lid 327 does not affect the formed image. In the third embodiment, these points are taken into consideration, and the negatives in the actual dark box tray are
The open / closed state of the lid 327 is detected based on the exposure state of the positive bonded body. The configuration of the third embodiment is also as follows.
It is similar to the first embodiment, and only different parts will be described.

FIGS. 13 (a) to 13 (c) are explanatory views showing the arrangement position and structure of the sensor SN1 for detecting the open / closed state of the lid 327 according to the third embodiment. The sensor SN1 that detects the open / closed state of the lid 327 is an optical sensor that detects light in the visible light range so as to detect the influence of the light of the negative / positive joint, and is illustrated in FIGS. 13 (a) and 13 (b). As shown, the tray 326 is arranged at the tip portion. As shown in FIG. 13C, the structure is composed of a photodiode 1301, a transparent cover 1302 that protects the detection surface of the photodiode 1301, and a casing 1303.

By using such a sensor (optical sensor) SN1, it is possible to judge whether or not the negative / positive joint is actually exposed, and therefore, for example, the apparatus is sufficiently dark like a dark room. When placed in place,
Even if the lid 327 is in the open state, the copy operation process can be continuously performed, in other words, the copy operation process can be performed in accordance with the actual situation, and compared with the first and second embodiments. ， It is possible to improve the usage efficiency of the device. This also means that a good image can be obtained without disturbing the operator, since unnecessary display operation and stop of the development time notification timer are not performed. Here, the sensor SN1 is arranged at the tip portion of the tray 326 because, normally, the tip portion is most easily exposed.

[Fourth Embodiment] The third embodiment is a negative
The open / closed state of the lid 327 is detected according to the exposure state of the positive joint, but the formed image is not affected (or the influence is small because the opened state of the lid 327 is short). ) There are cases. The fourth embodiment is the third
This point is further considered from the embodiment of
The open / closed state of the lid 327 is detected from the integrated value of the exposure amount of the positive bonding body. The configuration of the fourth embodiment is similar to that of the third embodiment, and only different parts will be described.

FIG. 14 shows an integrator circuit for obtaining the integrated value of the light amount detected by the sensor SN1. It has an operational amplifier 1401 in which a photodiode 1301 is connected between the inverting terminal and the non-inverting terminal, and between the non-inverting terminal and the output terminal. It is composed of a capacitor 1402 and an analog switch 1403 which are connected to each other.

In the above structure, the photodiode 13
Detection signal (voltage) flowing when light enters 01
The capacitor 1402 is charged with a current proportional to the detection signal to output a signal (integrated signal) having an output value corresponding to the integrated value of the light incident on the photodiode 1301 from the output terminal of the operational amplifier 1401. Here, the analog switch 1403 is closed by the control unit 401 immediately before the start of the developing process, and the electric charge charged by the capacitor 1402 is discharged (reset).

Since the exposure amount of the negative / positive joint body can be accurately grasped by this integral signal, the lid 327
Regardless of the opening / closing time, the environment in which the device is placed, etc., it is possible to perform the copying operation processing according to the exposure amount of the negative / positive joint, that is, the actual copying operation. Therefore, if a threshold value is set in advance and the output value of the integrated signal becomes equal to or higher than the threshold value, it is considered that the influence of the exposure of the supply at this time is large and the deterioration of the image quality is significant, and the operator is notified of that fact again. By urging the user to make a copy, it is possible to reduce the time wasted by the operator.

In the fourth embodiment, only one threshold value is set for the integrated signal, but a plurality of threshold values are set in order to classify the deterioration state of the formed image due to light. Is also good. Further, since the number of sheets used for positive sheets is not one, a plurality of sheets may be set according to the type of positive sheets.

Further, in this embodiment, various controls are performed depending on the open / close state of the lid 327 or the exposure state of the negative / positive joint, but when the open state of the lid 327 is detected, the copying operation is performed. A function of prohibiting the start may be added. At this time, if the detection result of the sensor S9 in this embodiment is used, there is a disadvantage that the copying operation cannot be started when the apparatus is placed in a sufficiently dark place such as a dark room. Therefore, the optical sensor (sensor SN1) is used. By detecting the amount of light in the dark box tray, the lid 327
It is desirable to detect the open / closed state of.

When the supply is wasted, the power is erroneously turned off (that is, the power switch is turned off) during the operation of the development time notification timer after the developer is spread, in addition to the exposure of the supply. In some cases, that is, the end of the development time is unknown, and a good image cannot be obtained, and the supply may be wasted. Therefore, the development time notification timer can be driven even if the power switch is turned off.
By providing a backup driving power source, it is possible to eliminate waste of the supply in such a case.

[0094]

As described above, according to the present invention, the photosensitive sheet and the image receiving sheet are used in combination, and the dark box in which the photosensitive sheet / image receiving sheet joined body after the developer is spread is accommodated and the lid of the dark box. In the peel-apart type instant photographic device equipped with an open / close detecting means for detecting the open / closed state of the sheet and a position detecting means for detecting the positions of various sheets conveyed in the apparatus, the detection result of the open / close detecting means and the position detecting means On the basis of the above, since the control means for controlling the interruption of the image forming operation and the warning control for giving a warning through the predetermined warning means are provided, the risk of exposure of the supply during the developing process conveyed to the dark box is avoided or reduced. By doing
It is possible to suppress waste of supply, improve economic efficiency, and improve work efficiency.

As described above, according to the present invention, the photosensitive sheet and the image receiving sheet are used in combination, and the dark box in which the photosensitive sheet / image receiving sheet bonded body after the developer is spread is stored, and the lid of the dark box. Open / close detection means for detecting the open / closed state of the sheet, informing means for informing the end of the development processing time of the photosensitive sheet / image receiving sheet assembly stored in the dark box, and the position of the photosensitive sheet conveyed in the apparatus In the peel-apart type instant photographic device having the position detecting means, the photosensitive sheet / image receiving member is provided with the control means for controlling the stop of the notifying means based on the detection result of the opening / closing detecting means and the position detecting means. By notifying the end of the development processing time corresponding to each sheet bonded body, it is possible to suppress the waste of the supply, improve the economical efficiency, and improve the work efficiency. Can.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a configuration of a positive sheet assembly used in a first embodiment.

FIG. 2 is an explanatory view showing the constitution of a negative film used in the first embodiment.

FIG. 3 is a schematic cross-sectional view showing the configuration of the entire instant photographic device according to the first embodiment.

FIG. 4 is a schematic block diagram showing a control system of the instant photographic device according to the first embodiment.

FIG. 5 is a plan view showing an operation unit shown in FIG.

FIG. 6 is an explanatory diagram showing a layout of sensors arranged in the instant photographic device according to the first embodiment.

FIG. 7 is a flowchart showing interrupt processing for the dark box tray according to the first embodiment.

FIG. 8 is a flowchart showing copy operation processing according to the first embodiment.

FIG. 9 is a flowchart showing copy operation processing according to the first embodiment.

FIG. 10 is a flowchart showing a dark box tray interrupt process during the developing process according to the first embodiment.

FIG. 11 is a flowchart showing interrupt processing of a dark box tray according to another embodiment.

FIG. 12 is a flowchart showing copying operation processing according to the second embodiment.

FIG. 13 is an explanatory view showing the arrangement position and configuration of the sensor according to the third embodiment.

FIG. 14 is a circuit diagram showing an integrating circuit according to a fourth embodiment.

[Explanation of symbols]

100 Positive Sheet Assembly 200 Negative Film 321 Registration Roller 325a 32
5b Developing roller 326 Tray 327 Cover 401 Control unit 403 Operation unit 506 Display panel 506a Setting value display 507 Development time elapsed display 1301 Photodiode 1302 Cover 1303 Casing 1401 Operational amplifier 1402 Capacitor 1403 Analog switch S1 to S4 S7 to S9 SN1 Sensor

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Haruko Masuko, Inventor Harumitsu Masuko 1-3-6 Nakamagome, Ota-ku, Tokyo Inside Ricoh Co., Ltd. 1 (72) Inventor Fumihiko Hoshi 3--1 Shinmeidou, Nakameisei, Shibata-cho, Shibata-gun, Miyagi Prefecture

Claims (9)

[Claims] 1. A dark box, in which a photosensitive sheet and an image receiving sheet are used in combination, and in which a bonded photosensitive sheet / image receiving sheet after development of a developer is stored, and open / close detection for detecting the open / closed state of a lid of the dark box. In a peel-apart type instant photographic device including a means and a position detecting means for detecting the position of various sheets conveyed in the apparatus, an image forming operation is performed based on the detection results of the opening / closing detecting means and the position detecting means. An instant photographic apparatus, comprising: a control means for controlling the interruption of the warning and a warning control for giving a warning through a predetermined warning means. 2. The photosensitivity control means, when the opening / closing detection means detects the open state of the lid and the position detection means detects that the photosensitive sheet has not reached a predetermined position. 2. The instant photograph according to claim 1, wherein the sheet is conveyed to a preset position and then stopped so that the image forming operation is in a standby state, and a warning that the lid is open is given through the warning means. apparatus. 3. The control means, when the opening / closing detection means detects the transition of the lid from the open state to the closed state when the opening / closing detection means places the image forming operation in a standby state,
The instant photographic device according to claim 1, wherein the image forming operation is restarted. 4. The cover means, when the opening / closing detecting means detects the opened state of the lid and the position detecting means detects that the photosensitive sheet has reached a predetermined position. 2. The instant photographic device according to claim 1, wherein the warning means is used to warn that the camera is in an open state. 5. The position detecting means detects that the photosensitive sheet has not reached a predetermined position when the opening / closing detecting means detects the transition of the lid from the open state to the closed state. Then, the fact that the formed image is not affected by light is notified via the warning means, and when the position detection means detects that the photosensitive sheet has reached a predetermined position, the formed image is illuminated. 2. The instant photographic device according to claim 1, wherein the fact that there is a risk of deterioration is notified via the warning means. 6. A dark box that uses a combination of a photosensitive sheet and an image receiving sheet, and accommodates the photosensitive sheet / image receiving sheet assembly after the developer has been spread, and an open / closed detection that detects the open / closed state of the lid of the dark box. Means, an informing means for informing the end of the development processing time of the photosensitive sheet / image receiving sheet assembly housed in the dark box, and a position detecting means for detecting the position of the photosensitive sheet conveyed in the apparatus. An instant photographic device of peel apart type, further comprising control means for controlling stop of the notification means based on the detection results of the opening / closing detection means and the position detection means. 7. The control means, when the opening / closing detection means detects the open state of the lid after the position detection means detects that the photosensitive sheet has reached a predetermined position,
7. The instant photographic device according to claim 6, wherein the notification means is stopped. 8. The instant photographic device according to claim 1, wherein the opening / closing detecting means is a light amount detecting means for detecting a light amount. 9. The opening / closing detection means has a light amount detection means for detecting the light amount in the dark box, and detects the open / closed state of the lid by an integrated value of the light amount detected by the light amount detection means. The instant photographic device according to claim 1 or 6.