JPH07104387A - Negative carrier - Google Patents

Abstract

PURPOSE: To obtain a negative film carrier capable of improving processing performance which immediately judges the insertion of a negative film with its front/rear faces inverted and continues prescribed processing when only the this/that sides in the same face of the negative film are inverted but an emulsion face is not front/rear-side-inverted. CONSTITUTION: This negative film carrier 8 using the negative film 20 at least with an DX code 40 and a frame number code 42 at its side edge part. Sensors S5 to S8 capable of detecting the DX code 40 and the frame number code 42 are installed respectively at two places on both side of the width directions of a negative film passage 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a negative carrier used in, for example, a printer for photo printing, and more particularly to a structure of a sensor for detecting a DX code and a frame number code of a negative film.

[0002]

2. Description of the Related Art First, an example of a photographic printing printer using a negative carrier will be schematically described with reference to FIG. In FIG. 3, the photoprinting printer main body 1 has a mounting portion 12 for the photographic printing paper roll 2 on the upper portion, and the photographic printing paper 3 pulled out from the roll 2 is exposed in the vertical exposure unit 13 and then stored in the storage unit 14. Temporarily stored, then
The tray 1 is processed while being conveyed at a constant speed through a processing unit 16 such as developing and fixing, and cut into a predetermined size by a cutter 17.
Received at 8. A light source 4, a color filter 5, a light diffusing tube 6, a table 7, a negative carrier 8, an imaging lens 9, a shutter 10 and a mirror 11 are arranged below the photographic paper roll mounting portion 12 in this order from the bottom. 1 of the negative film as a manuscript held by the negative carrier 8
The frame is illuminated by the light source 4 through the color filter 5 and the light diffusion tube 6, and the image of one frame of the negative film is imaged on the photographic paper 3 through the mirror 11 by the imaging lens 9. The exposure time at this time is determined by the opening time of the shutter 10.

In the negative carrier 8 of the above-mentioned printer for photo printing, the negative film is set in a predetermined direction and conveyed one frame at a time in the predetermined direction, and one frame image is printed on the photographic paper 3. Be done. The negative film is provided with a DX code and a frame number code on both widthwise edges thereof. The DX code is a bar code in which a film maker, a film type and the like are coded, and the frame number code is a bar code which is sequentially numbered for each frame. On the negative carrier side, one DX code detection sensor and one frame number code detection sensor are arranged on both sides in the width direction of the negative film passage,
Based on the detection signal from the DX code detection sensor, appropriate exposure, development processing, and the like are performed, and based on the detection signal from the frame number code detection sensor, exposure is performed for each frame.

[0004]

Since both the DX code detecting sensor and the frame number code detecting sensor of the above photographic printer are bar code sensors,
Even if the negative film is turned upside down in the longitudinal direction, each sensor can read the DX code and the frame number code in the opposite direction. Even if the negative film is turned upside down in the width direction, the frame number code can be read by the DX code sensor. By the frame number code sensor
You can read each X-code while ambiguous. Therefore, the negative film may be burned upside down based on the outputs of the DX code detection sensor and the frame number code detection sensor, so the printer operator must always check the front and back of the negative film. There is

Further, when the negative film is only reversed in the same plane and the emulsion surface is not reversed, the baking can be done without any problem. However, the DX code detection sensor and the frame number code detection are possible. Since the signals detected by the use sensors are unscheduled signals, there is a drawback that the predetermined processing cannot be performed and the efficiency is reduced.

The present invention has been made in order to solve the above-mentioned problems of the prior art. When a negative film is inserted with its front and back reversed, it can be immediately determined, and the negative film can be immediately judged. Provide a negative carrier that can improve the processing efficiency by allowing the prescribed processing to be continued when the emulsion surface is not reversed but the front and back are reversed in the same plane. The purpose is to do.

[0007]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a negative carrier using a negative film having a side edge portion provided with at least a DX code and a frame number code. Sensors that can detect the code were installed at two locations on each side of the negative film passage in the width direction.

[0008]

The sensors installed at two positions on both sides in the width direction of the negative film passage can detect the DX code and the frame number code. When the negative film is inserted in the proper orientation, predetermined processing is performed based on the proper detection signal from each sensor. When the front and back of the negative film are reversed and the front and back are not reversed, the DX code is detected in the reverse order by the sensor for detecting the frame number code, and the frame number code is detected in the reverse order by the sensor for detecting the DX code. However, in this case, there is no problem and the processing is continued. When the negative film is turned upside down in the longitudinal direction, the DX code detection sensor detects the DX code in the reverse direction, and the frame number code detection sensor detects the frame number code in the reverse direction. , It is judged that the negative film is upside down. When the negative film is turned upside down in the width direction, the DX code detection sensor detects the frame number code in the normal direction, and the frame number code detection sensor detects the DX code in the normal direction. Since it is detected, it is determined that the negative film is upside down.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Before describing an embodiment of a negative carrier according to the present invention, an example of displaying various codes on a negative film will be described with reference to FIG. In FIG. 2, the negative film 20 has a plurality of image portions 50 having constant vertical and horizontal dimensions at regular intervals in the longitudinal direction thereof, and the film 2
Perforations 48 are formed at regular intervals outside the image portion 50 on both side edges in the width direction of 0. In FIG. 2, when the upper side is the back side and the lower side is the front side, the DX code 40 is formed on the edge portion on the back side of the film 20. The DX code 40 is a bar code for displaying a film maker, a film type, and the like.
It is composed of DX code data 44 displayed as a bar code along the edge of 0, and DX code timing marks 45 displayed as a bar code inside the DX code data 44. A start mark 46 is displayed at the front end of the DX code timing mark 45, and an end mark 47 is displayed at the rear end.

A frame number code 42 is displayed as a bar code on the front edge of the film 20. The frame number code 42 sequentially displays the image parts 50. The dimension of the frame number code 42 in the film width direction is the above-mentioned DX code data track 44.
And the DX code timing mark 45 are substantially the same as the dimension of the DX code 40 in the film width direction.

FIG. 1 shows an embodiment of a negative carrier 8 of a photographic printing printer for conveying the negative film 20 as described above and printing the image of the film 20 on photographic paper. The negative carrier 8 has a film passage 22 for conveying the negative film 20 from the left side to the right side in FIG. 1. Above the film passage 22, three feed rollers 23 are provided across the width of the film passage 22. , 24, 25 are arranged. The feed roller 23 at the left end is rotationally driven by the pulse motor 26. The other feed rollers 24 and 25 are also rotationally driven in synchronization with the rotation of the pulse motor 26. A space between the feed rollers 24 and 25 is located at a baking position, and a baking frame 28 having substantially the same size as the image portion 50 of the film 20 is provided in the film passage 22. The center 30 of the baking frame 28 coincides with the optical axis center of the expanding lens 9 shown in FIG.

A feed roller 23 is provided in the film passage 22.
A film sensor 32 is disposed near the position of, and upstream of the feed roller 23 in the film feeding direction. The film passage 22 also includes a pair of sensors S5, S6 and a pair of sensors S7, S between the feed rollers 23, 24.
8 is arranged, and a screen sensor 34 is arranged between these sensors and the feed roller 24. Set of sensors S
5 and S6 are arranged on the inner side of the film passage 22, and when the film 20 is inserted and conveyed in the normal direction, the sensor S5 faces the DX code data 44, and the sensor S6 detects the DX code timing mark 45. To face. Another pair of sensors S7 and S8 are arranged on the front side of the film passage 22, and both sensors S7 and S8 face the frame number code 42 when the film 20 is inserted and conveyed in the proper direction. Screen sensor 34
Is for detecting a frame image of the film 20, and the film sensor 20 conveys the film 20 by a predetermined amount from the time when the frame image is detected by the screen sensor 34 to stop the film, so that the center of the frame image substantially coincides with the optical axis 30. The film 20 is set with.

Each of the sensors 32, S5, S6, S7, S
Reference numerals 8 and 34 are light receiving elements. Although the sensor S5 is originally for detecting the DX code data 44, it can detect this when the film 20 is reversed in the width direction, facing the frame number code 42. Similarly, the sensor S6 originally has the DX code timing mark 4
5, the frame number code 42 can be detected when the film 20 is reversed in the width direction. The sensor S7 is originally a frame number code 4
2 for detecting, but when the film 20 is reversed in the width direction, it can be detected by facing the DX code timing mark 45. Similarly, the sensor S8 is originally for detecting the frame number code 42, but can detect the DX code data 44 when the film 20 is reversed in the width direction.

Now, as shown in FIG. 1, a negative film 2
It is assumed that 0 is inserted in the proper direction from the left side along the film passage 22 of the carrier 8 by the manual operation of the operator. When the film 20 is inserted, its front end crosses the sensor 32, and the sensor 32 is shielded by the film 20 to output a signal. The pulse motor 26 is activated by this signal, and the feed rollers 23, 24, 25 are rotationally driven. It The film 20 is rotated by the rotation of the feed roller 23.
1 is drawn rightward in FIG. 1 and is further conveyed rightward by the rotational driving of the feed rollers 24 and 25. During this conveyance, the sensor S5 detects the DX code data 44 of the film 20, the sensor S6 detects the DX code timing mark 45, and the sensors S7 and S8 both detect the frame number code 42. The detection mode of each sensor is
Since it is a planned regular detection mode, the film 2
Assuming that 0 is conveyed with the front and back facing in the proper direction, the printer operates normally as a photo printing printer.

Further, it is assumed that the film 20 is inserted without being turned upside down, but is turned upside down. In this case, the sensors S5 and S6 both reverse the frame number code 42 of the film 20, the sensor S7 reverses the DX code timing mark 45, and the sensor S8 DX.
The code data 44 is detected in the reverse direction. From the detection output of each of these sensors, it is possible to determine that the film 20 is conveyed with its front and back reversed without being reversed, but if the front and back of the film 20 are not reversed,
Since there is no problem even if printing or developing processing is performed, the printer operates normally as a photo printing printer.

Next, it is assumed that the film 20 is inserted with the front and back reversed in the width direction. In this case, both the sensors S5 and S6 set the frame number code 42 of the film 20 in the normal direction, and the sensor S7 sets the DX code timing mark 4
5 in the normal direction, the sensor S8 causes the DX code data 44
Is detected in the normal direction. From the detection output of each of these sensors, it is possible to determine that the film 20 is being conveyed with the front and back reversed in the width direction. Therefore, for example, an alarm is issued or the feed rollers 23, 24 and 25 are rotated in the opposite direction. By driving the film 20 to convey it in the opposite direction, it is urged to insert the film 20 again with the front and back sides in the normal direction.

Further, it is assumed that the film 20 is inserted with the front and back reversed in the front-back direction. In this case, the sensor S5 is DX
The code data 44 is detected in the reverse direction, the sensor S6 detects the DX code timing mark 45 in the reverse direction, and the sensors S7 and S8 both detect the frame number code 42 in the reverse direction.
From the detection output of each of these sensors, it is possible to determine that the film 20 is being conveyed with the front and back reversed, so that an alarm is issued and the feed rollers 23, 24, 25 are reversed as described above. The film 20 is rotated in the opposite direction to convey the film 20 in the opposite direction, and the front and back of the film 20 are urged to be inserted again with the normal orientation.

As described above, according to the above-described embodiment, the sensors S5, S6, S7 and S8 capable of detecting the DX code 40 and the frame number code 42 are provided at two positions on each side of the negative film passage 22 in the width direction. Since it has been installed, it is possible to determine whether the negative film 20 is inserted with its front and back facing in the proper direction or whether the front and back are reversed and inserted based on the detection output of each of the sensors S5, S6, S7, S8, When the front and back are reversed and inserted, a warning can be issued to prompt the front and back of the film 20 to be turned to the normal direction. Further, it is possible to determine whether the front and back of the film 20 are reversed or not reversed, and in that case, it is possible to continue the predetermined processing, and therefore it is assumed that the predetermined processing is continued. It is possible to improve efficiency.

[0019]

According to the present invention, at least D is formed on the side edge portion.
In a negative carrier that uses a negative film to which an X code and a frame number code are attached, a sensor that can detect the DX code and the frame number code is installed at each of two positions on both sides in the width direction of the negative film passage. Can be identified from the detection output of each sensor whether the front and back are inserted in the normal direction or whether the front and back are reversed and inserted, and if the front and back are reversed and inserted, a warning is issued. For example, you can encourage the front and back of the film to face the proper direction. In addition, it is possible to determine whether the front and back of the film are not reversed even if the front and back are reversed, and in that case, it is possible to continue the predetermined processing. Can be improved.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of a negative carrier according to the present invention.

FIG. 2 is a plan view showing a positional relationship between an example of a general negative film and each sensor of a negative carrier according to the present invention.

FIG. 3 is an optical layout diagram schematically showing an example of a photographic printing printer in which the negative carrier according to the present invention is used.

[Explanation of symbols]

 8 Negative carrier 20 Negative film 22 Film passage 40 DX code 42 Frame number code S5 sensor S6 sensor S7 sensor S8 sensor

Claims (1)

[Claims] 1. A negative carrier using a negative film having at least a DX code and a frame number code on its side edge, wherein a sensor capable of detecting the DX code and the frame number code is a width of the negative film passage. Negative carriers characterized by being installed in two locations on each side of the direction.