JPH04199140A - Instant photographic type copying device - Google Patents

Abstract

PURPOSE:To know the position of an optical means even when the optical means is moved by the vibration or the impact in the case of transportation by detecting any of specified number of discrimination patterns and discriminating the position of the optical means. CONSTITUTION:When a detection means 25 detects a pattern 28a, it is discriminated that a rod lens array 2 exists on the right side from the central part of its moving area and in a non-copying area which is deviated from a position opposed to an aperture part 1a. In such a case, a photosensitive material 17 is not exposed, so that copying is performed by returning a carrier 3 to the right side at the time of next copying. In the case of detecting a pattern 28b, it is discriminated that the array 2 exists in a copying area opposed to the aperture 1a and on the right side from the central part. In such a case, since there is possibility that the photosensitive material 17 is exposed, a warning is given. In the case of detecting a pattern 28C, the same processing as in the case of detecting the pattern 28b is performed, and in the case of detecting a pattern 28d, the same processing as in the case of detecting the pattern 28a is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an in-situ photographic copying apparatus for copying objects such as manuscripts, original drawings, and photographs.

[Prior Art] The present applicant has filed Japanese Patent Application No. 1-331617 and Japanese Patent Application No. 1-3.
In No. 31618 and Japanese Patent Application No. 1-333628,
Eliminate the complexity of setting close-up conditions and the effects of lens aberrations when copying using a camera and close-up device, and eliminate the complexity of the configuration and circuitry when copying using a scanner-type image reader equipped with a CCD, etc. We have proposed an instant photocopying device that can produce high-quality copies with a simple configuration and easy operation.

A photographing window is formed on the bottom of the main case, and a holder with an in-stant photographic photosensitive material attached to the light-transmitting window at the top of the main case is installed in an openable and closable manner, and the main case is placed over the subject. The optical means inside the main body case is moved parallel to the subject, and small areas of the subject are imaged one after another on the photosensitive surface of the in-sta photosensitive material. The inverted image of the formed image is formed as a visible image.

By the way, in this instant photocopying apparatus, during copying, the optical means moves from a home position at one end of its moving region to a home position at the other end, and when the optical means reaches this position, the optical means is activated by a limit switch. contacts and is stopped at that position. Then, at the time of the next copy, the optical means returns to the home position at one end based on the detection signal from the limit switch, and during this time the next copy is performed, so that copying can be performed efficiently.

[Problem to be solved] However, if the optical means moves due to vibration or shock during transportation and moves away from the limit switch, it becomes impossible to judge whether to move the optical means in the direction of the limit switch during the next copying. There was an inconvenience. In addition, if the optical means reaches the copying area due to vibrations or shocks during transportation, there is a risk that it will be exposed to the in-stant photosensitive material, and in some cases, the photosensitive material may be copied. There was the inconvenience of putting it away.

Therefore, it is an object of the present invention to provide an in-stand system that can determine which side of the optical means is located with respect to the center of its moving area and whether it is in the copying area even if the optical means moves due to vibrations or shocks during transportation. An object of the present invention is to provide a photocopying device.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a method of moving an optical means for forming an image of a small area of a subject on a photosensitive surface of an in-situ photographic photosensitive material in parallel to the subject. In an instant photocopying apparatus that performs copying, there is provided a strip-shaped identification pattern having at least four types of patterns along the moving direction of the optical means, and a band-shaped identification pattern provided at a position facing the identification pattern and adapted to the identification pattern by the movement of the optical means. an identification pattern detection means that moves relative to the optical means; a second pattern indicating that the optical means is in a non-copying area on the other end side of the moving area; and a third pattern indicating that the optical means is in a copying area near one end with the center of the moving area as a border. , and a fourth pattern indicating that the optical means is in the copy area near the other end with the center of the moving area as a boundary.

[Operation] According to the present invention, it is possible to detect the pattern of the identification pattern by the identification pattern detecting means and to determine which side of the optical means is located with respect to the central portion of the moving region and whether it is located in the copying region.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

First, the overall structure of the instant photocopying apparatus will be explained.

In FIG.
is supported by a guide shaft 4 and is movable left and right. A part of a timing heald 6 stretched between a pair of pulleys 5 is attached to the carrier 3 via a fixing means (not shown), and the driving force of a drive motor 8 is transmitted to the pulley 5 via a wheel train 7. , the carrier 3 is moved from side to side via a timing belt 6. One end of a light-shielding film 10 is attached to both left and right sides of the upper part of the carrier 3 via fixing means (not shown), and the other end of the light-shielding film 10 is attached to a light-shielding film winding coaxially with the pulley 5 via a guide rod 1. It is wound up on the take-up means 12. The light-shielding film winding means 12 winds up or lets out the light-shielding film 10 as the carrier 3 moves while applying a predetermined tension to the light-shielding film 10. A light source 13 is attached to the carrier 3, and the object P
It is designed to irradiate. A window 1b is formed in the bottom plate of the main body case 1, and light from a light source 13 is irradiated onto the copying material P through this window 1b.

A cassette holder 16 is fixed to the upper part of the main body case 1. The cassette holder 16 has an opening 1.68 mm at the bottom.
is formed, and this opening 16a faces an opening 1a opened in the upper part of the main body case 1. A film cassette 18 containing an in-situ photographic photosensitive material 17 is installed inside the cassette holder 16, and the film cassette 18 can be inserted or inserted by opening and closing the upper lids 1 and 6b, which are rotatably supported by a shaft 20. Will be taken off. The upper lid 16b can be locked by a lock arm 16c in a closed state. After exposure, the instant photosensitive material 17 can be taken out by passing it between a pair of rollers 21.

At the time of copying, the main body case 1 is placed on the copy object P and aligned with the copy object P, and then a start switch (not shown) is turned on. Then, either the light source 13 or the copy P
is irradiated, the drive motor 8 is driven, the carrier 3 is moved, for example, to the right from the left end home position via the pulley 5 and the timing belt 6, and a small area of the copying material P is injected via the rod lens array 2. Images are formed one after another on the photosensitive surface of the static photographic photosensitive material 17. After copying, a copy of the copy P can be obtained by taking out the instant photographic photosensitive material 17 from between the pair of rollers 21. In the state after copying, the carrier 3 is located at the rightmost home position, and during the next copying, the carrier 3 moves from the rightmost home position to the leftmost home position, and during this time, the next copy is performed using I7 in the same manner as above. .

Next, a first embodiment of the present invention will be described.

As shown in the first to fourth figures, an identification pattern 28 is formed on the lower surface of one end in the width direction of the left light-shielding film 10 along the moving direction of the rod lens array 2, and an identification pattern 28 is formed opposite to this identification pattern 28. The detection means 25 is fixedly provided. The identification pattern detection means 25 has two reflective photoreflectors 26a and 26b fixed in parallel in the width direction of the light-shielding film 10 on a support plate 25a.

The support plate 25H has reflective photoreflectors 26a and 2.
Position regulating members 27 are fixed on both sides of 6b in contact with the lower surface of the light shielding film 10 to maintain a constant distance between the light shielding film 10 and the photoreflectors 26a and 26b.

In the identification pattern 28, four patterns are formed along the moving direction of the rod lens array 2 by combining reflective parts with reflective films and non-reflective parts as they are. To explain in detail, from the left side, the pattern 28a has a pattern 28a in which the portion facing both the photoreflectors 26a and 26b is a non-reflection portion; the portion facing the photoreflector 26H is a non-reflection portion;
The pattern 28b is a reflective part, the part facing the photoreflector 26b is a non-reflective part, and the pattern 28c is a reflective part, the part facing the photoreflector 26a, and the pattern 28b is a reflective part, and the pattern 28c is a reflective part, and the pattern 28c is a reflective part, and the pattern 28c is a reflective part, and the pattern 28b is a reflective part. The pattern 28d is also a reflective portion. And photo reflectors 26a, 26b
When the pattern 28a faces the rod lens array 2, the rod lens array 2 is located between the opening 1a and the right home position, and the pattern 28b is placed on the photoreflectors 26a and 26b.
In the case where the rod lens array 2 faces the opening 1a and is located on the right side with the center of the moving area as a boundary, the photoreflectors 26a and 26b are provided with a pattern 28C.
When the rod lens array 2 faces the opening 1a and is located on the left side with the center of the moving area as a boundary, the pattern 28d is formed on the photoreflectors 26a and 26b.
When the rod lens array 2 faces each other, the area of each pattern is set so as to be located between the opening 1a and the home position on the left side.

Because of this configuration, for example, if the carrier 3 moves from its home position at the end of its moving area due to vibration or shock during transportation, and the pattern 28a is detected by the detection means 25, It can be seen that the rod lens array 2 is located on the right side of the center of the movement area and in the non-copying area away from the position facing the opening 1a, and therefore the in-situ photographic photosensitive material 17 is not exposed to light. First, it is found that the carrier 3 should be returned to the right home position and the copying should be started from this position at the time of the next copying, and such a command can be issued by the control circuit.

Further, when the pattern 28b is detected by the detection means 25, it can be seen that the rod lens array 2 is in the copying area facing the opening 1a and on the right side of the center of the movement area, and therefore There is a possibility that the stat photographic photosensitive material 17 may have been exposed to light, so when the next copy is made, the control circuit returns the carrier 3 to the home position on the right side, and then issues a warning that the photosensitive material 17 may have already been exposed and removes the exposed material. It is possible to prevent copying on a static photosensitive material.

Further, when the pattern 28C is detected by the detection means 25, it is found that the rod lens array 2 is located in the copy area facing the aperture]a, and is located on the left side of the center of the moving area. Therefore, the In-Stat photographic photosensitive material] 7 may have been exposed to light, and after returning the carrier 3 to the leftmost home position by the control circuit, a warning is issued to the effect that the In-Stat photosensitive material may have already been exposed. Copying onto photosensitive materials can be prevented.

Further, when the pattern 28d is detected by the detection means 25, the rod lens array 2 is located on the left side of the center of the moving region and is in a non-copying region away from the position facing the opening 1a. Therefore, it is understood that the instant photographic photosensitive material 17 is exposed to light, and that for the next copying, the carrier 3 should be returned to the left home position and copying should be started from this position. can issue commands.

In this embodiment, for example, the photoreflector 26a,
When the boundary portion between the pattern 28b and the pattern 28C faces the photoreflector 26b, the photoreflector 26a, 26b
receives the reflected light from the pattern 28b and the reflected light from the pattern 28c, and the output values of the photoreflectors 26a and 26b are almost the same, or in such a case, for example, the setting of the output value to determine that there is a reflective part. If the output value is smaller than the output value obtained above, it is determined that the rod lens array 2 is on the left side with respect to the center of the moving area, and the carrier 3 is moved to the left home position, After the time period has elapsed, the photoreflectors 26g and 26b perform detection again, and if the previous detection is incorrect, a new operation is performed based on the new detection result, thereby preventing malfunctions.

Note that various types of identification patterns can be considered, and for example, the positional order of the reflecting portions may be changed as shown in FIG.

FIG. 6 shows a second embodiment of the present invention, in which among the four patterns, the leftmost pattern 3]a is a non-reflective part, the second, third, and fourth patterns from the left are pattern 3], b , 31
c and 31d are each pasted with reflective films of different reflectances so that the reflectance increases sequentially (in Fig. 6, each pattern is shown inside a circle, and the hatched part inside the circle is indicates the reflective part). In this case, each pattern can be detected with only one reflective photoreflector 32, and the configuration becomes simple.

FIG. 7 shows a third embodiment of the present invention, in which an identification pattern 33 is provided on the timing belt 6.

In addition, a member that moves with the movement of the optical means may be provided separately, and a band-shaped identification pattern may be provided on this member, or the identification pattern may be fixed to the main body case 1 and moved as the optical means moves. An identification pattern detection means may be provided on a member that moves accordingly.

Furthermore, in the case of detection using a photoreflector, in order to emit a predetermined light, a light shielding member may be provided between the photoreflector and the identification pattern to cover the surface to be inspected by the photoreflector.

Further, an identification pattern having patterns with different light transmittances may be provided and a light-transmitting photoreflector may be used as the identification pattern detection means, or the identification pattern may be made of a magnetic material and the identification pattern may be detected by the magnetic detection means. may be detected. Further, the identification pattern may have at least four types of patterns along the moving direction of the optical means, and five or more types of patterns may be provided as necessary.

[Effects] As explained above, according to the present invention, even if the optical means moves due to vibration or impact during transportation, the optical means can be located on either side of the center of its movement area and in the copying area. This eliminates inconveniences such as not being able to judge in which direction the optical means should be moved during copying, or copying being performed on an exposed in-situ photosensitive material.

[Brief explanation of the drawing]

1 to 5 show a first embodiment of the present invention, in which FIG. 1 is a partially cutaway plan view of the main body case, FIG. 2 is a longitudinal sectional view, and FIG. Figure 4 is a sectional view taken along line A-A in Figure 3.
FIG. 5 is a plan view showing another example of the identification pattern, FIG. 6 is a plan view of the main part of the second embodiment, and FIG. 7 is a plan view of the main part of the third embodiment. 2... Optical means, 25... Identification pattern detection means, 28.31.33... Identification pattern. that's all

Claims (2)

[Claims] (1) In an in-situ photocopying apparatus that performs copying by moving an optical means for forming an image of a small area of an object on the photosensitive surface of an in-situ photographic photosensitive material in parallel to the object, in the direction of movement of the optical means. A belt-shaped identification pattern having at least four types of patterns along the belt, and identification pattern detection means provided at a position facing the identification pattern and moved relative to the identification pattern by movement of the optical means. The identification pattern includes a first pattern indicating that the optical means is in a non-copying area on one end side of the moving area, and a first pattern indicating that the optical means is in a non-copying area on the other end side of the moving area. a second pattern indicating that the optical means is in the copying area near the one end with the center of the moving area as the boundary; An instant photocopying apparatus characterized by being provided with a fourth pattern indicating that the copying area is located near the other end with the center as a boundary. (2) In claim 1, the identification pattern is provided on a band-like member that moves with the movement of the optical means, and the identification pattern detection means is fixed opposite to the band-like member. An instant photocopying machine.