JPH04114053U - Image forming device - Google Patents

Abstract

(57) [Summary] [Objective] To provide an image forming apparatus that prevents erroneous insertion and jamming of sheet materials such as photosensitive materials and manuscripts in a manual insertion slot. [Structure] A film or a chain formed in an arched manner is fixed to one wall surface 81 of a manual insertion slot 80 as a shutter means 82, and the other end of the shutter means 82 is fixed to the other wall surface 83 opposite to one wall surface 81 with a predetermined pressure. come into contact with Shutter means 8
2 comes into pressure contact with the other wall surface 83 and closes the insertion port.
Only the sheet material to which a predetermined conveying force is applied can pass between the shutter means 82 and the wall surface 83. [Effect] When the tip of the curled sheet material comes into contact with the shutter means, it is guided in an arched shape or slides on the surface of the chain to face the other wall, thereby preventing erroneous insertion. Also,
Since the shutter means is in pressure contact with the wall surface, the sheet material cannot pass through the insertion opening except during manual insertion, and incorrect insertion is prevented.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention overlaps the original and photosensitive material and exposes them to form a latent image on the photosensitive material. The invention relates to an image forming apparatus configured to develop a photosensitive material after Regarding the improvement of the insertion slot when manually inserting a photosensitive material on which a latent image has been formed into the developing section. Ru.

0002

[Conventional technology]

An image forming device that forms images by overlapping two sheets of material. There is. For example, by overlapping an exposed photosensitive material and an image-receiving material, an image is formed on the image-receiving material. There is a method of forming an image, a method of overlapping an original and a photosensitive material, and exposing the photosensitive material. There are methods for forming images. In the latter method, for example, an original and a photosensitive material are superimposed on the circumferential surface of an exposure drum. The photosensitive material is projected and exposed in this state, and then the original and the photosensitive material are automatically peeled off, and the photosensitive material is exposed. It is configured to be transported to a developing section and developed. Then, the manuscript and photosensitive material The automatic peeling and conveyance to the developing section were performed by the configuration shown in FIG. 3.

0003 From the bottom to the top of the transport path R, the original C and the photosensitive material are The food A is conveyed in a superimposed state. There are intake chambers X on both sides of the conveyance path R, Y is provided so that the document C and the photosensitive material A are sucked in the direction of the arrow s by suction action. It is being done. Therefore, original C and photosensitive material A are separated from the leading edge, and Since the material is transported upward from below, the peeling section 1 acts like a wedge. Peel off both. Then, the peeled original C is transported to the transport path R1 side, and the photosensitive material A is transported to the transport path R1 side. 2 and then transported to a developing section (not shown). However, the peeling and conveyance are not always performed accurately, and the photosensitive material A is In some cases, the document C is conveyed along with the document C to the conveyance path R1.

0004 In this case, photosensitive material A is not developed. Then, the emission control member 2 is located at the position indicated by the solid line. If the original C and the photosensitive material A are overlapping, they will be loaded from the ejection port 3. It will be discharged outside. However, a latent image has already been formed on photosensitive material A. Therefore, it is desirable to utilize this effectively. Therefore, manually insert the A port 4 is provided, and the photosensitive material A that has come out from the discharge port 3 is manually fed into the transport path R2. The structure is such that the image forming apparatus is inserted and transported to the developing section using the transport path R2. According to the above configuration The photosensitive material A that has been discharged once can be developed and waste can be avoided. However, according to the inventor's study, by providing the insertion port 4, a new It became clear that a problem would arise.

[0005]

[Problem that the idea aims to solve]

That is, the document C and photosensitive material A discharged from the discharge port 3 are In most cases, the paper is discharged in an arcuate shape, in other words, curled in the four directions of the insertion port. Then, the original C and photosensitive material A are ejected as if being pushed up from below. As a result, the curled tip is pushed downward, and this tip is inserted into the insertion slot 4. Sometimes I was forced into it. If this situation occurs, depending on the size of original C or photosensitive material A, the leading edge may While the part is being drawn in, the rear end part is interposed in the discharge port 3 and the conveyance path R1. As a result, it becomes tightly wrapped around the conveyance path R1, the discharge port 3, and the insertion port 4. this In this case, a jam may occur and the document C may be damaged. Also, such a thing At the very least, there is a possibility that the original C enters the developing section and the original C becomes soiled or deformed. If Manuscript C is a handwritten manuscript with no replacement, it is necessary to create a new manuscript. Countermeasures against the above-mentioned accidents were desired.

[0006] This invention was devised in view of the above problems, and its purpose is to provide a manual feed slot. Image forming device that prevents jamming of sheet materials such as photosensitive materials and original documents The aim is to provide a

[0007]

[Means and actions for solving the problem] The above object of the present invention is to provide a developing section for developing a photosensitive material on which a latent image has been formed, and a developing section for developing a photosensitive material on which a latent image is formed. In an image forming apparatus equipped with an insertion port for manually inserting the photosensitive material into the developing section. One end of the insertion slot is fixed to one wall facing the photosensitive material, and the other end is fixed to the other wall. This is achieved by an image forming device equipped with a shutter means whose other end is in contact with the surface under a predetermined pressure. It will be done. The shutter means contacts the wall surface with a predetermined pressure due to elastic force or gravity, and closes the insertion port. block The contact pressure between the shutter means and the wall surface is due to the conveying force of the device. It is set to a force that does not pass through. In other words, an elastic film formed in an arched shape, or a chain, etc. By configuring the shutter means, when the curled sheet material hits the insertion slot, Its tip is guided by the shutter means and directed toward one wall that constitutes the insertion slot. This will prevent it from entering the insertion port. Also, the tip of the sheet material may not be close to the shutter. Even if the tip of the step reaches the contact point with the wall, if the specified force is not applied, it will not pass between the two. I can't pass it. In addition, if the user manually inserts the sheet material, press and hold it in the insertion direction with the specified force. By doing so, it is inserted against the pressing force of the shutter means. Therefore, the original purpose of the manual insertion slot and prevention of incorrect insertion can be achieved. As the photosensitive material used in the present invention, for example, Japanese Patent Laid-Open No. 59-190886 discloses Microcapsules, couplers and salts containing diazonium salts on a support as described There are diazo-sensitive materials that have a genus containing groups. These respond to the original by exposure. A transparent latent image is created and developed by heating.

[0008]

[Embodiment]

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Figure 1 is a schematic diagram of an image forming apparatus to which the present invention is applied, and Figure 2 is a cross-section of the manual insertion slot. It is a front view. The feature of this embodiment is the structure of the manual insertion slot 80 shown in FIG. However, for convenience of explanation, an image forming apparatus provided with a manual insertion slot 80 will be explained first. Next, the structure of the manual insertion slot 80 and prevention of incorrect insertion will be explained.

[0009] In this embodiment, a diazo copying machine is illustrated as an image forming apparatus, so the following will be explained below. It is called a copying machine. A diazo photosensitive material A is accommodated in the paper feed cassette 21 . The copying device is for original C. In addition to carrying in and discharging documents, there is also a system for repeatedly circulating the same document C within the device. Exposure for exposing an image onto the original transport unit 32 and the photosensitive material A superimposed on the original C 34, and a developing section 36 that heats and develops the photosensitive material A after exposure.

0010 The document transport section 32 has a plurality of transport belts 40 lined up around the circumferential surface of a hollow guide drum 38. This belt 40 is stretched around the row, and another belt 42 is stretched across the belt 40. By rotating both belts 40 and 42, the document C is held and conveyed. Ru. A cassette 21 containing photosensitive material A is loaded below the document transport section 32. be. The photosensitive material A in the cassette 21 is aligned with the timing of the original document C being transported. The sheets are fed one by one to the stacking section 44 by the paper feed roller 30, and are stacked with the original C. I will be forgotten. The photosensitive material A superimposed on the original C is transferred to the exposure section 3 by a conveyance roller 31. 4.

[0011] The exposure section 34 includes an exposure drum 48 containing a fluorescent lamp 46, and an exposure drum 48 containing a fluorescent lamp 46. 48 and four belt support rollers 50, approximately three of the circumferential surface of the exposure drum 48 The belt 52 is wound around the /4 area. And the exposure drum 48 The belt 52 is driven to rotate so that the exposure drum 48 and the belt 52 are overlapped with each other. While conveying the original C and the photosensitive material A, the light from the fluorescent lamp 46 The original image is then projected onto the photosensitive material A to form a latent image.

0012 The exposed photosensitive material A is separated from the original C in the peeling section 54, and then transferred to the developing section 3. 6. Note that a manual insertion slot is provided so as to communicate with the conveyance path leading to the developing section 36. The manual feed slot 80 will be explained later with reference to FIG. 2. Explain in detail. The developing section 36 includes a hollow cylindrical heating drum 5 equipped with a halogen lamp 56 inside. 8 and three conveyance rollers 60 that come into contact with the circumferential surface of the heating drum 58. Transportation A guide is provided between the feed rollers 60 to guide the photosensitive material A in contact with the circumferential surface of the heating drum 58. A door member 62 is provided. The photosensitive material A is transferred between the heating drum 58 and the conveying roller. 60, the latent image on the photosensitive material A is heated and developed while being held and conveyed by the photosensitive material A. Visualize. The photosensitive material A after development is discharged from the discharge port 64 and placed on the main body case. It is accumulated in a stacker 70 that has been cleared.

[0013] On the other hand, the original C separated from the photosensitive material A is discharged from the apparatus by the conveyor belt 40. or circulated along the guide drum 38 and made into copies by the same process as described above. used. The guide drum 38 covers a circumferential area from the peeling section 54 to the document loading section. Holes are dispersed between the conveyor belts, and the air inside the guide drum 38 is sucked. A fan 68 is provided. Then, the original C after peeling is placed in the negative position inside the guide drum 38. It is urged against the conveyor belt 40 by the pressure and comes into close contact with the conveyor belt 40, and the driving force is transmitted. transported.

[0014] Next, the structure and operation of the manual insertion slot 80 will be explained with reference to FIG. 2. The manual insertion slot 80 is opened from the opening side, in other words, from the sheet material insertion side a for photosensitive material A, etc. If you look at it, it has a rectangular opening, and when you look at it from the side, you can see that it has a developing section as shown in Figure 2. 36. Then, on one wall surface 81 constituting the manual insertion slot 80, there is provided a shutter as referred to in the present invention. Data means 82 are provided. One end of the shutter means 82 is connected to a book that is integral with the wall surface 81. It is fixed to the body case and is formed to deform into a bow shape as a whole. stop Therefore, the other end of the shutter means 82 is elastically pressed against the other wall surface 83 opposite to the one wall surface 81. They have sexual contact and the insertion port 80 is blocked. In this embodiment, the shutter means 82 is made of polycarbonate with a thickness of 0, A mylar film of about 1 mm in thickness is used. However, the shutter The material and shape of the data storage means 82 are not limited to those described above, and other materials and shapes may be used as described later. It is possible to adopt the

[0015] By providing the shutter means 82 in the manual insertion slot 80, the following can be achieved. A remarkable effect is achieved. The first effect is to prevent incorrect insertion of the document C, etc. Now, hypothetically, as mentioned above For some reason, the document C was inserted into the manual feed slot 8 in a curled state as shown by the dotted line in FIG. Suppose that it is inserted into 0. If the document C is pushed out from the rear end side in this state, the document C The tip of the shutter means 82, that is, the portion that is in contact with the shutter means 82 in the illustrated state is the shutter hand. The arched shape of the step 82 guides it in the direction of arrow b. In other words, the leading edge of the document C is directed toward the other wall surface 83 opposite to one wall surface 81. You will be guided in the direction. Therefore, the original C resists the pressing force of the shutter means 82. This prevents the jam from being inserted into the conveyance path.

[0016] The second effect is that the photosensitive material A can be inserted smoothly according to the user's will. Ru. That is, if you want to manually insert the photosensitive material A on which the latent image has been formed, the user The user inserts the photosensitive material A into the manual insertion slot 80 from the direction of arrow a. in this case, The leading end of the photosensitive material A slides along the surface of the shutter means 82, and the shutter means 82 It invades the tip side of the. The tip of the shutter means 82 is elastically attached to the other wall surface 83. Since they are in contact with each other, by continuing to insert the photosensitive material A in the direction of arrow a, the photosensitive material A will be placed in the developing section. You will be guided to 36. Also, even if the photosensitive material A is wrinkled or bent at the corners, , is modified by the elasticity of the shutter means 82.

[0017] In addition, in the embodiment described above, the function to prevent erroneous insertion is explained for document C. However, photosensitive material A and original C are overlapped and curled as described above. It is quite conceivable that the card may be inserted into the manual insertion slot 80 in this state. However, the shutter The guidance by the data means 82 in the direction of the other wall surface 83, that is, the guidance in the direction of arrow b, is as described above. Since this is done in the same way, incorrect insertion can be reliably prevented.

[0018] As explained above, according to this embodiment, erroneous insertion of photosensitive material A or document C can be prevented. It can be reliably prevented, and manual insertion by the user can be performed smoothly if necessary. It will be done. Note that the wall surface 81 to which the shutter means 82 is attached is heated as shown in FIG. It is near the developing section 36, and the heat of the developing section 36 is easily transmitted thereto. Therefore, heat resistant Although polycarbonate is used here, a metal plate may basically be used.

[0019] Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments. It's not. The shutter means 82 is not limited to a film shape or a plate shape, for example, It has a structure in which chains are suspended at predetermined intervals from the same part as the fixed part of the shutter means 82. It's okay. However, regarding the chain, the tip of the sheet material should be able to slide downward. It is preferable that the sea urchin has a shape with no protrusions on the surface, and is generally called the Kihei type. A structure similar to that used in cress is suitable.

[0020]

[Effect of the idea]

According to the present invention, there is a film formed in an arched manner on one wall side of the manual insertion slot. A chain is fixed as a shutter means, and the shutter is mounted on the other wall opposite to the one wall. The other end of the shutter means is configured so that it contacts elastically or deformably. . Therefore, the leading edge of a sheet material such as a photosensitive material or a document that has been deformed into a curled shape is exposed to the shutter. When the chain comes into contact with the chain, it may be guided in an arched shape or slide on the surface of the chain, causing the other chain to This will prevent incorrect insertion. Also, when inserting the paper manually, Even if the leading edge of the sheet material reaches the contact area between the shutter means and the wall surface, the sheet material is weakly transported. The sending force does not pass between the two. However, if the user manually inserts the sheet material, the shutter means It is inserted into the insertion slot against the pressure force, so the normal image shape associated with manual insertion is construction will take place.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of an image forming apparatus showing an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of main parts for explaining the structure of the manual insertion slot and the function of preventing erroneous insertion.

FIG. 3 is a schematic configuration diagram of main parts explaining the structure of a conventional manual insertion slot.

[Explanation of symbols]

21 Paper cassette 32 Original transport section 34 Exposure section 36 Developing section 44 Overlapping part 46 Fluorescent lamp 48 Exposure drum 50 Belt support roller 80 Manual insertion slot 81 One wall 82 Shutter means 83 Other wall A Photosensitive material C Manuscript a Insertion direction b Conversion direction

Claims (1)

[Scope of utility model registration request] 1. An image forming apparatus comprising: a developing section for developing a photosensitive material on which a latent image has been formed; and an insertion port for manually inserting the photosensitive material into the development section, the photosensitive material facing the photosensitive material in the insertion port; An image forming apparatus provided with a shutter means having one end fixed to one wall surface and the other end contacting the other wall surface with a predetermined pressure.