JP3695253B2 - Photo processing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a photographic processing apparatus in which a photographic photosensitive material is transported along a transport path by a transport device to perform various processes such as exposure.
[0002]
[Prior art]
In general, in a photographic processing apparatus that exposes an image such as a film on a photographic paper, the image is exposed on a photographic paper transported by the transport device for transporting the photographic paper drawn from the paper magazine into the machine body. In addition to mounting an exposure device and the like, a photographic photosensitive material detector is provided in the middle of the conveying path of the conveying device to detect the passing state of the photographic paper being conveyed, and the photographic photosensitive material detector The photographic paper transported along the transport path is checked at any time to control the driving of the transport device.
[0003]
[Problems to be solved by the invention]
By the way, in the above photographic processing apparatus, it is common to use, for example, an optical photosensor composed of a light emitting diode and a phototransistor as the above-described photographic photosensitive material detector. If the photographic paper stops at the detection position of the photographic photosensitive material detector and the light of the light emitting diode continues to irradiate the photographic paper for a predetermined time, for example, 1 minute or more, the photographic paper is inadvertently exposed with the light of the light emitting diode. There is a risk of it.
[0004]
The present invention has been developed in view of the above circumstances, and the object is to detect an optical photographic photosensitive material when a photographic photosensitive material such as photographic paper stops for a predetermined time or more in the middle of a conveyance path. It is an object of the present invention to provide a photographic processing apparatus capable of preventing inadvertent exposure due to light emitted from a container.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a photographic processing apparatus provided with a conveying device for conveying a photographic photosensitive material, and provided with an optical photographic photosensitive material detector in the middle of the conveying path of the photographic photosensitive material. When the conveyance of the photographic photosensitive material is stopped for a predetermined time or more while the photographic photosensitive material is detected by the photosensitive material detector, the light emission of the photographic photosensitive material detector is stopped or dimmed.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
A photographic processing apparatus denoted by reference symbol A in FIG. 1 is for printing an image on photographic paper P, and is basically sent out from a set of paper magazines 1a and 1b and these paper magazines 1a and 1b. A transport device 2 for transporting the photographic paper P, an exposure device 3 disposed in the middle of a transport path of the transport device 2, and a controller 4 for controlling the drive of the transport device 2 and the exposure device 3 are provided. ing.
[0007]
The paper magazines 1 a and 1 b described above are mounted on the machine body 5, and the transport device 2 and the exposure device 3 are stored in the machine body 5.
[0008]
In addition, a work door 51 is provided on the front surface of the machine body 5 so as to be freely opened and closed. By opening the work door 51, maintenance inspection and the like of the transport device 2 and the exposure device 3 are performed.
[0009]
The transport apparatus 2 is divided into a plurality of units. Specifically, the transport apparatus 2 corresponds to the first transport processing unit 6 a disposed between the paper magazines 1 a and 1 b and the exposure apparatus 3, and the exposure apparatus 3. The second conveyance processing unit 6b disposed in the portion to be developed, and the third, fourth, fifth, and sixth conveyance processing units 6c, 6d, 6e, and 6f sequentially disposed from the exposure apparatus 3 to the developing processor. Each of the conveyance processing units 6a to 6f is divided and provided with drive motors 61a to 61f, and the conveyance processing units 6a to 6f are driven by driving control of the drive motors 61a to 61f by the controller 4, so P is sequentially conveyed.
[0010]
The exposure apparatus 3 employs a digital exposure method, and the digital image data read in advance by the scanner S is processed by the controller 4, and the image processed based on the digital image data is controlled by the controller 4. Is exposed to the photographic paper P by the exposure head 31, and in the embodiment shown in the figure, the exposure head 31 is mounted on the second transport processing unit 6b.
[0011]
As a digital exposure method, a PLZT shutter method, a fluorescent beam method, a liquid crystal shutter method, and the like are known, and an arbitrary method can be selected according to the specifications of the apparatus.
[0012]
In the photographic processing apparatus having the above configuration, in the embodiment shown in the figure, the first to sixth photographic photosensitive material detectors 7a to 7a for detecting the passing state of the photographic paper P for each of the conveyance processing units 6a to 6f. 7f is provided, and these detectors 7a to 7f are connected to the input side of the controller 4, and the first to sixth photographic photosensitive material detectors 7a to 7f are composed of a light emitting diode and a phototransistor. A light transmission type photo sensor is used.
[0013]
In addition, first to sixth motor drive detectors 8a to 8f for detecting driving or stopping of the drive motors 61a to 61f of the transport processing units 6a to 6f are provided, and these detectors 8a to 8f are provided on the input side of the controller 4. Connected.
[0014]
In the first to sixth photographic light-sensitive material detectors 7a to 7f, for example, when the sixth photographic light-sensitive material detector 7f detects the photographic paper P, the conveyance process in which the photographic light-sensitive material detector 7f is provided. When the drive of the drive motor 61f of the unit 6f is stopped by the motor drive detector 8f and the stop continues for a predetermined time (for example, 30 seconds), the controller 4 controls to detect the sixth photographic photosensitive material. The device 7f is turned off to stop the light emission of the light emitting diode constituting the sixth photographic material detector 7f, and the motor drive detector 8f detects that the drive motor 61f is driven after the light emission is stopped. At this stage, the photographic photosensitive material detector 7f is turned on again to start detection of the photographic paper P by the photographic photosensitive material detector 7f.
[0015]
By the way, since the sensitivity of the photographic paper P varies depending on the type thereof, in the above embodiment, the determination time required to turn off the power of the photographic photosensitive material detector when the drive motor is stopped is determined. The photosensitive material detector is configured so that it can be arbitrarily changed according to the sensitivity. For example, in the case of the photographic paper P having a high sensitivity, the drive motor is stopped when a shorter time (for example, 20 seconds) has passed. Can be turned off.
[0016]
In the above photographic processing apparatus, image data such as film taken by the scanner S is sent to the controller 4, while the photographic paper P is drawn from the paper magazines 1 a and 1 b and cut into a predetermined size by a cutter (not shown). Are transported by the first and second transport processing units 6a and 6b, and after the image is exposed to the photographic paper P via the exposure head 31, the exposed photographic paper P is further transferred to the third transport processing unit. Are sequentially transported by the sixth transport processing units 6c to 6f and fed into the development processing apparatus T.
[0017]
In the development processing apparatus T, the exposed photographic paper P is developed with various processing liquids and then dried with a dryer to finish printing.
[0018]
On the other hand, troubles such as paper clogging, poor temperature control, insufficient replenishment, etc. occur in the development processing apparatus T, for example, during the image exposure operation on the photographic paper P, and the photographic paper P is sent to the development processing apparatus T. First, when the photographic paper P must be waited in the transport processing units 6a to 6f until the trouble is solved, for example, the fourth to sixth transport processing units 6d to 6f detect the photographic paper P, and When the motor drive detectors 8d to 8f detect that the drive motors 61d to 61f of the fourth to sixth transport processing units 6d to 6f have stopped driving, if the stop continues for a predetermined time (for example, 30 seconds). Under the control of the controller 4, the power of the fourth to sixth photographic photosensitive material detectors 7d to 7f is turned off, and the detection of the photographic paper P by the fourth to sixth photographic photosensitive material detectors 7d to 7f is stopped. It is is the photographic paper P by the light emitting diodes constituting each photographic material detector 7d~7f is prevented from being exposed.
[0019]
Then, after the detection of the photographic paper P by the fourth to sixth photographic photosensitive material detectors 7d to 7f is stopped, if the motor drive detectors 8d to 8f detect that the drive motors 61d to 61f have been driven, the fourth to sixth photographic photosensitive material detectors 7d to 7f again. The sixth photographic photosensitive material detectors 7d to 7f are turned on, and the detection of the photographic paper P by the fourth to sixth photographic photosensitive material detectors 7d to 7f is started.
[0020]
Thus, in the above photographic processing apparatus, the photographic paper P is not inadvertently exposed by the light of the light emitting diodes constituting the photographic photosensitive material detectors 7a to 7f, and the photographic processing operation is smooth and wasteful. Yes.
[0021]
In the above embodiment, the first to sixth photographic photosensitive material detectors 7a to 7f and the motor drive detectors 8a to 8f are provided, and any one of the first to sixth photographic photosensitive material detectors 7a to 7f is photographic paper. When P is detected, the motor drive detector detects that the drive motor of the transport processing unit provided with the photographic material detector is stopped, and when the stop continues for a predetermined time or more, the controller Although the power of the photographic photosensitive material detector is turned off by the control 4 and the detection of the photographic paper P is stopped, the present invention is not limited to this. For example, the first to sixth photographic photosensitive materials are used. When any of the detectors 7a to 7f detects the photographic paper P, when the detection state continues for a predetermined time or longer (for example, 1 minute), the conveyance of the photographic paper P by the conveying device 2 is stopped for the predetermined time or longer. State and Determined that, under the control of the controller 4, by turning off the power of the photographic light-sensitive material detector, it may be stopped to detect the printing paper P.
[0022]
In the above embodiment, when the conveyance of the photographic paper P is stopped for a predetermined time or more in a state where any of the photographic photosensitive material detectors 7a to 7f detects the photographic paper P, the photographic photosensitive material is controlled under the control of the controller 4. The light source of the light emitting diode constituting the photographic photosensitive material detector is stopped by turning off the power source of the material detector. In addition, the light of the photographic photosensitive material detectors 7a to 7f is controlled by the controller 4. You may make it light-emit the said light emitting diode to such an extent that the printing paper P is not exposed carelessly.
[0023]
In the above embodiment, the present invention is applied to a photographic processing apparatus for printing an image on the photographic paper P. However, the present invention is not limited to this. For example, for developing a film or a baked photographic paper. The present invention may be applied to such a photographic processing apparatus.
[0024]
【The invention's effect】
As described above, according to the present invention, when the conveyance of the photographic photosensitive material is stopped for a predetermined time or more while the photographic photosensitive material detector is detected, the light emission of the photographic photosensitive material detector is stopped or dimmed. As a result, even if the photographic photosensitive material is stopped for a predetermined time or more in the middle of the conveying path due to a failure of the conveying device, it is ensured that the optical photographic photosensitive material detector is inadvertently exposed. Can be prevented.
[Brief description of the drawings]
FIG. 1 is a schematic explanatory diagram of a photographic processing apparatus according to the present invention.
FIG. 2 is a configuration diagram of the same.
FIG. 3 is an explanatory diagram showing a state in which a scanner and a development processing apparatus are connected to the photographic processing apparatus according to the present invention.
[Explanation of symbols]
P Photographic paper (photosensitive material)
2 Conveying devices 7a to 7f Photosensitive material detector

Claims (1)

In a photographic processing apparatus provided with a conveying device for conveying a photographic photosensitive material, and provided with an optical photographic photosensitive material detector in the middle of the conveying path of the photographic photosensitive material
A photographic photosensitive material detector is configured to stop or reduce light emission when the conveyance of the photographic photosensitive material is stopped for a predetermined time or more while the photographic photosensitive material detector detects the photographic photosensitive material. Processing equipment.

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