Scanning device and image forming equipment

Abstract

The utility model discloses a scanning device and image forming equipment, and relates to the technical field of image forming. The scanning device comprises a first light-transmitting manuscript platform and a carrying lower cover, wherein the first light-transmitting manuscript platform is used for transmitting scanning light; the lower carrying cover comprises a paper pressing area, and the paper pressing area is used for pressing the sheet passing through the paper pressing area to the first light-transmitting manuscript table so that the scanning light can scan the sheet. According to the utility model, the sheet passing through the paper pressing area is pressed to the first light-transmitting manuscript table through the paper pressing area on the conveying lower cover, and the scanning light is enabled to scan the sheet, so that an existing assembled paper pressing plate is replaced, and the cost of the scanning device can be further reduced.

Description

Technical Field

[0001] This utility model relates to the field of image forming technology, and in particular to a scanning device and an image forming apparatus. Background Technology

[0002] Multifunctional image forming equipment with copying and scanning capabilities includes a scanning unit that allows users to scan content on paper. The scanning unit uses a platen assembly to press the paper firmly against a light-transmitting stage, enabling the image reader to accurately capture the content on the paper.

[0003] In existing technologies, such as Figure 1 As shown, some pressing plate assemblies 14 include a pressing metal part 141 and a background Mylar sheet 142. The background Mylar sheet 142 is glued to the pressing metal part 141, and the pressing metal part 141 is connected to the pressure component of the scanning device 10. During the operation of the scanning device 10, the background Mylar sheet 142 comes into contact with the paper, and the pressing plate assembly 14 presses the paper firmly onto the light-transmitting platen under the action of the pressure component. However, when the background Mylar sheet 142 is glued to the pressing metal part 141, if the adhesion is not good, the background Mylar sheet 142 is prone to skewing, wrinkles, or air bubbles, which will result in an uneven contact surface between the background Mylar sheet 142 and the paper, affecting the scanning effect. In addition, the adhesive method has a short lifespan, and the adhesive effect will gradually decrease after long-term use.

[0004] Furthermore, this method requires assembling the pressure plate separately and then installing it onto the scanning device, which involves many parts, makes the assembly process more complex, and results in higher costs. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a scanning device and image forming equipment to replace the existing assembly pressing paper, thereby reducing the cost of the scanning device.

[0006] According to a first aspect of the present invention, a scanning device is provided, comprising:

[0007] A first light-transmitting platen, the first light-transmitting platen being used to transmit scanning light;

[0008] The lower cover is conveyed, and the lower cover includes a paper pressing area. The paper pressing area is used to press the sheet material passing through the paper pressing area toward the first light-transmitting table so that the scanning light can scan the sheet material.

[0009] The scanning device of this invention presses the sheet material passing through the pressing area on the lower cover onto the first light-transmitting platen, so that the scanning light can scan the sheet material, thereby replacing the existing assembly pressing plate and reducing the cost of the scanning device.

[0010] In some embodiments, the conveying lower cover includes a conveying lower cover body and a pressing plate, the pressing plate being integrally formed with the conveying lower cover body, and the pressing area being the pressing plate.

[0011] In some embodiments, the pressing plate includes a pressing plate body and a plurality of elastic elements, which undergo elastic deformation under force to push the pressing plate body toward the first light-transmitting platen.

[0012] In some embodiments, the elastic element is integrally formed with the pressure plate body, and the elastic element is also integrally formed with the conveying lower cover body.

[0013] In some embodiments, the pressure plate body has a first end and a second end in a second direction, and a plurality of elastic elements are respectively located at the first end and the second end of the pressure plate body and are distributed sequentially along the first direction.

[0014] In some embodiments, the elastic element is an elastic arm.

[0015] In some embodiments, the elastic element includes a U-shaped portion and two arc-shaped portions, one end of each of the two arc-shaped portions being connected to a different end of the U-shaped portion, and the other end of each of the two arc-shaped portions being connected to the pressure plate body and the conveying lower cover body, respectively.

[0016] In some embodiments, the elastic elements are arranged symmetrically, and the axis of symmetry of the elastic elements is parallel to the first direction.

[0017] In some embodiments, a feed ramp is also included, which is used to guide the sheet into the gap between the paper pressing area and the first light-transmitting platen.

[0018] According to a second aspect of the present invention, an image forming apparatus is provided, comprising the scanning device described in any one of the first aspects.

[0019] Compared with the prior art, the scanning device and image forming equipment of this utility model press the sheet material passing through the pressing area on the lower cover onto the first light-transmitting platen, so that the scanning light can scan the sheet material, thereby replacing the existing assembly pressing plate and reducing the cost of the scanning device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a paperboard pressing assembly in the background art;

[0021] Figure 2 A schematic diagram of the structure of an image forming apparatus according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the scanning device according to one embodiment of the present invention;

[0023] Figure 4 This is a cross-sectional view of the scanning device according to one embodiment of the present invention;

[0024] Figure 5 for Figure 4 A magnified structural diagram of part A in the middle;

[0025] Figure 6 This is a schematic diagram of the conveying lower cover according to one embodiment of the present utility model;

[0026] Figure 7 for Figure 6 A magnified structural diagram of part B.

[0027] Explanation of reference numerals in the attached drawings: Equipment body 10, scanning device 20, scanning device body 100, first light-transmitting platen 200, second light-transmitting platen 300, paper feeding device 400, pressure cover 410, conveying lower cover 420, conveying lower cover body 421, pressure plate 422, pressure plate body 4221, elastic element 4222, U-shaped part 4222a, arc-shaped part 4222b, paper feeding tray 430, paper picking device 440, conveying roller 450, paper feeding inclined surface 460, guiding inclined surface 470, paper discharge roller 480, paper discharge tray 490, paper feeding channel 500. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] This application provides an image forming apparatus for performing image forming jobs, such as scanning, generating, printing, receiving, and sending image data. Examples of the image forming apparatus include printers, copiers, fax machines with scanning capabilities, and multi-function peripherals (MFPs) that perform the above functions in a single device. Figures 2-4As shown, the image forming apparatus includes a main body 10 and a scanning device 20. The scanning device 20 is disposed on the upper part of the main body 10 and electrically connected to the main body 10. Users can place sheets such as paper, film, and cards on the paper feed tray 430 in the paper feed device 400 of the scanning device 20. The image forming apparatus can automatically feed paper by means of the paper feed device 210 of the scanning device 20, so that the image forming apparatus can complete printing / copying / scanning operations. The paper feed device 210 is an automatic document feeder (ADF).

[0030] like Figure 3 and Figure 4 As shown, the scanning device 20 includes a scanning device body 100, a first light-transmitting platen 200, a second light-transmitting platen 300, and a paper feeding device 400. The first direction X is defined as parallel to the main scanning direction of the scanning device 20, the second direction Y is parallel to the secondary scanning direction of the scanning device 20, and the direction perpendicular to the first direction X and the second direction Y is defined as the third direction Z.

[0031] like Figure 4 As shown, the main body 100 of the scanning device is provided with a scanning component (not shown in the figure) for emitting scanning light. The scanning component reads the image in the sheet along the main scanning direction. When reading the image in the sheet, the scanning component moves along the secondary scanning direction. The first light-transmitting platen 200 and the second light-transmitting platen 300 are both transparent glass and are distributed sequentially on the main body 100 of the scanning device along the second direction Y. The scanning light emitted by the scanning component will pass through the first light-transmitting platen 200 or the second light-transmitting platen 300 in order to read the image in the sheet located on the first light-transmitting platen 200 or the second light-transmitting platen 300.

[0032] like Figure 3 and Figure 4 As shown, the paper feed device 400 is movably mounted on the scanning device body 100. In the third direction Z, the paper feed device 400 and the scanning component are located on different sides of the first light-transmitting platen 200 and the second light-transmitting platen 300, respectively. The paper feed device 400 feeds the sheet to the first light-transmitting platen 200 so that the scanning component can read the image in the sheet on the first light-transmitting platen 200. If the sheet is not fed by the paper feed device 400, the user can lift the paper feed device 400 and place the sheet on the second light-transmitting platen 300 so that the scanning component can read the image in the sheet on the second light-transmitting platen 300.

[0033] like Figure 4 and Figure 5As shown, the paper feeding device 400 includes a pressure cover 410, a conveying lower cover 420, a paper feeding tray 430, a paper picking device 440, a conveying roller 450, a paper feeding ramp 460, a guide ramp 470, a paper discharge roller 480, and a paper discharge tray 490.

[0034] like Figure 4 and Figure 5 As shown, the pressure cover 410 is movably mounted on the scanning device body 100. The conveying lower cover 420 is locked onto the pressure cover 410 by screws. A paper feeding channel 500 is provided between the conveying lower cover 420 and the pressure cover 410, which is used to guide the sheet material. The paper feed tray 430 is used to place the sheet material to be processed. The paper picking device 440 is used to move the sheet material on the paper feed tray 430 to the paper feeding channel 500. There can be multiple conveying rollers 450, which are used to drive the sheet material along the paper feeding channel 500. The paper path 500 moves; the feed ramp 460 is used to guide the sheet through the first light-transmitting platen 200; the guide ramp 470 is located between the first light-transmitting platen 200 and the second light-transmitting platen 300, and the guide ramp 470 is used to guide the sheet and prevent the sheet from entering the second light-transmitting platen 300 from the paper path 500; the discharge roller 480 is used to move the sheet and discharge it from the paper path 500; the discharge tray 490 is used to receive the sheet discharged from the paper path 500 by the movement of the discharge roller 480.

[0035] like Figure 4 As shown, the conveying roller 450 and the paper discharge roller 480 include a driving wheel and a driven wheel. The driving wheel is mounted on a drive shaft, which is connected to a power source (e.g., a motor) to receive driving force. The driven wheel is mounted on its mounting shaft and can rotate about the shaft. The driven wheel and the driving wheel are in contact by default. When the paper feeding device 440 moves the sheet from the paper feed tray 430 to the paper feed channel 500, the sheet passes between the driving wheel and the driven wheel of the conveying roller 450 and can be moved by the conveying roller 450. When the sheet passes the conveying roller 450 and reaches the paper discharge roller 480, the sheet passes between the driving wheel and the driven wheel of the paper discharge roller 480 and can be moved by the paper discharge roller 480, and then the sheet is discharged to the paper discharge tray 490.

[0036] like Figure 4 and Figure 5As shown, the conveyor cover 420 includes a paper pressing area, which is used to press the sheet material passing through the paper pressing area against the first light-transmitting platen 200 so that the scanning light can scan the sheet material. Specifically, the paper pressing area is directly opposite the first light-transmitting platen 200 in the third direction Z. Under the driving force of the conveyor roller 450, the sheet material in the paper feeding channel 500 is guided by the paper feeding inclined surface 460 into the gap between the paper pressing area and the first light-transmitting platen 200. The paper pressing area presses the sheet material against the first light-transmitting platen 200 in the third direction Z. The sheet material is flattened under the pressure of the paper pressing area and the first light-transmitting platen 200, so that the scanning component can completely read the entire image in the sheet material. The paper pressing area on the conveyor cover 420 can replace the existing assembly pressing paper, thereby reducing the cost of the scanning device.

[0037] like Figures 5-7 As shown, the conveying lower cover 420 includes a conveying lower cover body 421 and a pressing plate 422. The pressing plate 422 constitutes the pressing area of ​​the conveying lower cover 420. That is, the pressing plate 422 is directly opposite the first light-transmitting platen 200 in the third direction Z. The sheet material that enters the gap between the pressing plate 422 and the first light-transmitting platen 200 through the paper feeding inclined surface 460 is pressed against the first light-transmitting platen 200 by the pressing plate 422. The sheet material is flattened under the pressure of the pressing plate 422 and the first light-transmitting platen 200.

[0038] like Figure 6 and Figure 7 As shown, the pressure plate 422 and the conveying lower cover body 421 are integrally formed, thereby eliminating the step of installing the pressure plate 422 onto the conveying lower cover body 421, saving the assembly time of the scanning device 20. At the same time, since the pressure plate 422 and the conveying lower cover body 421 are integrally formed, the installation structure between the pressure plate 422 and the conveying lower cover body 421 can be eliminated, saving the material cost of the scanning device 20.

[0039] like Figure 6 and Figure 7As shown, the pressing plate 422 includes a pressing plate body 4221 and a plurality of elastic elements 4222. The elastic elements 4222 undergo elastic deformation under force to push the pressing plate body 4221 toward the first light-transmitting platen 200. Specifically, the pressing plate body 4221 has a first end and a second end in the second direction Y. The plurality of elastic elements 4222 are respectively located at the first end and the second end of the pressing plate body 4221 and are distributed sequentially along the first direction X. In this embodiment, taking six elastic elements 4222 as an example, the first end and the second end of the pressing plate body 4221 each have three elastic elements 4222. The three elastic elements 4222 on the first end and the second end of the pressing plate body 4221 are distributed sequentially in the first direction X. The three elastic elements 4222 on the first end of the pressing plate body 4221 and the three elastic elements 4222 on the second end of the pressing plate body 4221 are distributed sequentially along the first direction X. 2 are symmetrically arranged, with their axis of symmetry parallel to the first direction X; the pressing plate body 4221 is directly opposite the first light-transmitting platen 200 in the third direction Z. In the third direction Z, the gap between the pressing plate body 4221 and the first light-transmitting platen 200 is less than the thickness of the sheet. The sheet that enters the gap between the pressing plate body 4221 and the first light-transmitting platen 200 via the paper feed inclined surface 460 will push the pressing plate body 4221 towards the conveying lower cover body 421 in the third direction Z. When the pressing plate body 4221 moves towards the conveying lower cover body 421, the elastic element 4222 undergoes elastic deformation under force, thereby pushing the pressing plate body 4221 towards the first light-transmitting platen 200 in the third direction Z. The sheet is pressed by the pressing plate body 4221 towards the first light-transmitting platen 200. The sheet is flattened under the pressure of the pressing plate body 4221 and the first light-transmitting platen 200.

[0040] like Figure 6 and Figure 7 As shown, the elastic element 4222 is integrally formed with the pressure plate body 4221 and the conveying lower cover body 421, thereby eliminating the step of installing the elastic element 4222 onto the pressure plate body 4221 and the conveying lower cover body 421, saving the assembly time of the scanning device 20. At the same time, since the elastic element 4222 and the conveying lower cover body 421 are integrally formed, the installation structure between the pressure plate 422 and the pressure plate body 4221 and the conveying lower cover body 421 can be eliminated, saving the material cost of the scanning device 20.

[0041] like Figure 6 and Figure 7As shown, the elastic element 4222 is an elastic arm, and the elastic elements 4222 are symmetrically arranged, with their axis of symmetry parallel to the first direction X. Specifically, the elastic element 4222 includes a U-shaped portion 4222a and two arc-shaped portions 4222b. The U-shaped opening of the U-shaped portion 4222a faces parallel to the first direction X. The two arc-shaped portions 4222b have the same shape, with one end of each arc-shaped portion 4222b connected to a different end of the U-shaped portion 4222a, and the other ends of each arc-shaped portion 4222b connected to the pressure plate body 4221 and the conveying lower cover body 4222a, respectively. 1. Connected; Since the pressure of the pressing plate body 4221 on the sheet material on the first light-transmitting platen 200 is provided by multiple elastic elements 4222, when the pressure is too high, the number of elastic elements 4222 can be reduced, or the elastic arm width can be reduced to reduce the elastic force of the elastic arm, thereby reducing the pressure of the pressing plate body 4221 on the sheet material; conversely, when the pressure is too low, the number of elastic elements 4222 can be increased, or the elastic arm width can be increased to increase the elastic force of the elastic arm, thereby increasing the pressure of the pressing plate body 4221 on the sheet material.

[0042] In this embodiment, the sheet material passing through the pressing area on the lower cover 420 is pressed against the first light-transmitting platen 200, so that the scanning light can scan the sheet material, thereby replacing the existing assembly pressing plate and reducing the cost of the scanning device.

[0043] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A scanning device, characterized in that, include: A first light-transmitting platen, the first light-transmitting platen being used to transmit scanning light; The lower cover is conveyed, and the lower cover includes a paper pressing area. The paper pressing area is used to press the sheet material passing through the paper pressing area toward the first light-transmitting table so that the scanning light can scan the sheet material.

2. The scanning device according to claim 1, characterized in that, The conveying lower cover includes a conveying lower cover body and a pressing plate, the pressing plate being integrally formed with the conveying lower cover body, and the pressing area being the pressing plate.

3. The scanning device according to claim 2, characterized in that, The pressing board includes a pressing board body and multiple elastic elements. The elastic elements undergo elastic deformation under force to push the pressing board body toward the first light-transmitting platen.

4. The scanning device according to claim 3, characterized in that, The elastic element is integrally formed with the pressure plate body, and the elastic element is also integrally formed with the conveying lower cover body.

5. The scanning device according to claim 3, characterized in that, The pressure plate body has a first end and a second end in the second direction, and a plurality of elastic elements are respectively located at the first end and the second end of the pressure plate body and are distributed sequentially along the first direction.

6. The scanning device according to claim 3, characterized in that, The elastic element is an elastic arm.

7. The scanning device according to claim 6, characterized in that, The elastic element includes a U-shaped portion and two arc-shaped portions. One end of each of the two arc-shaped portions is connected to a different end of the U-shaped portion, and the other end of each of the two arc-shaped portions is connected to the pressure plate body and the conveying lower cover body, respectively.

8. The scanning device according to claim 6, characterized in that, The elastic elements are arranged symmetrically, and the axis of symmetry of the elastic elements is parallel to the first direction.

9. The scanning apparatus according to any one of claims 1-8, characterized in that, It also includes a paper feed ramp, which is used to guide the sheet into the gap between the paper pressing area and the first light-transmitting platen.

10. An image forming apparatus, characterized in that, Includes the scanning device according to any one of claims 1-9.

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