Paper taking device and portable printer

Abstract

The application provides a paper taking device and a portable printer. The paper taking device comprises a base, a paper rubbing component, a paper taking component, a driving assembly, a moving component and a paper blocking component. The paper rubbing component is rotatably arranged on the base, and a paper feeding channel is formed between the paper rubbing component and the base. The upper end of the paper taking component is rotatably arranged on the base, a paper taking space is formed between the paper taking component and the paper rubbing component, and the paper taking space is communicated with the paper feeding channel. The driving assembly is arranged on the base. The moving component is movably arranged on the base and connected with the output end of the driving assembly to be driven by the driving assembly to move. The paper blocking component is rotatably arranged on the base and has an avoiding state and a paper blocking state. The single paper feeding and paper jam prevention can be realized by only adding the paper blocking component which is linked with the moving component on the basis of the original structure. The number of components is small, the structure is simple and compact, and the space of the paper taking device is not excessively occupied, so that the paper taking device can be applied to the portable printer.

Description

Technical Field

[0001] This application relates to the field of convenient printing technology, and more particularly to a paper dispensing device and a portable printer. Background Technology

[0002] The advent of portable printers has completely changed the traditional limitations of printing due to geographical constraints. Now, sales personnel can print contracts for customers on-site, logistics staff can generate waybills at any time, and outdoor researchers can print collected data and sketches on-site, greatly improving work flexibility and efficiency.

[0003] Chinese utility model patent application CN217201020U discloses a front-end paper feeding structure and printer, which includes a base, a paper feeding component, a paper feeding shaft, a paper feeding component, a drive assembly, and a moving component disposed on the base. The upper two ends of the paper take-up component are rotatably connected to the base, and the paper feed shaft is arranged parallel to the front of the paper take-up component along its length. The paper feed component is fixed to the outer periphery of the paper feed shaft. A paper take-up space is formed between the paper take-up component and the paper feed component, and the paper take-up space is used to place paper. The drive component is set on the base. The moving component is movably set on the base. The moving component is connected to the output end of the drive component and can move with the output end of the drive component. The moving component can selectively abut or separate from the paper take-up component. When abutting, the paper take-up space is reduced, so that the lower end of the paper take-up component is close to the paper feed component, so that the paper is in close contact with the paper feed component, ensuring that the paper in contact with it can be pushed towards the paper feeding mechanism when the paper feed component rotates. When separating, the paper take-up space is increased, so that the lower end of the paper take-up component is away from the paper feed component. The paper feeding mechanism then pushes the paper to the printing mechanism.

[0004] However, in actual operation, when multiple sheets of paper are placed into the aforementioned paper feeding space, the paper feeding component pushes the paper that comes into contact with it, and the paper located below the paper is easily dragged in by its friction, resulting in multiple sheets of paper being fed and paper jams, causing printing interruptions and affecting the user experience. Utility Model Content

[0005] This application provides a paper feeding device and a portable printer to solve the problems existing in related technologies. The technical solution is as follows:

[0006] In a first aspect, embodiments of this application provide a paper-taking device, including:

[0007] Base;

[0008] A paper feeding component is rotatably mounted on the base, and a paper feeding channel is formed between the paper feeding component and the base;

[0009] A paper-taking component is rotatably mounted on the base, and a paper-taking space is formed between the paper-taking component and the paper-feeding component, the paper-taking space being connected to the paper feed channel;

[0010] A driving component, wherein the driving component is disposed on the base;

[0011] A movable component, movably disposed on the base, the movable component being connected to the output terminal of the drive assembly to be driven to move by the drive assembly; and

[0012] A paper-blocking component is rotatably mounted on the base, and the paper-blocking component has an avoidance state and a paper-blocking state;

[0013] In the avoidance state, the moving part abuts against the paper taking part and drives the paper taking part to rotate forward to reduce the paper taking space. At the same time, the moving part separates from the paper blocking part so that the paper blocking part exits the paper feeding channel, thereby enabling the paper feeding part to push the target paper forward.

[0014] In the paper-blocking state, the moving part separates from the paper-taking part, allowing the paper-taking part to rotate in the opposite direction to increase the paper-taking space. At the same time, the moving part abuts against the paper-blocking part, so that at least a portion of the paper-blocking part extends into the paper feed channel, thereby blocking the remaining paper from following.

[0015] In one embodiment, when the moving component is separated from the paper-stopping component, the paper-stopping component can also rotate in the direction of paper movement as the target paper moves.

[0016] In one embodiment, the moving component is provided with an inclined guide portion that extends along the moving direction of the moving component;

[0017] The paper-blocking component is provided with a linkage part, which is slidably engaged with the inclined guide part. When the linkage part slides to abut against the high end of the inclined guide part, the paper-blocking component maintains the paper-blocking state. When the linkage part slides to the bottom end of the inclined guide part, the paper-blocking component maintains the avoidance state.

[0018] In one embodiment, the moving component is further provided with a positioning part, which is connected to the high end of the tilting guide part. When the positioning part cooperates with the linkage part, the paper-blocking component maintains the paper-blocking state.

[0019] In one embodiment, the positioning part is a horizontal surface extending along the moving direction of the moving component.

[0020] In one embodiment, the moving component has a clearance groove that connects to the bottom end of the inclined guide portion. When the clearance groove engages with the linkage portion, the paper stop component maintains the clearance state.

[0021] In one embodiment, the paper-blocking component is provided with a blocking part, which has the paper-blocking state and the avoidance state;

[0022] The base has a limiting groove that connects to the paper feed channel and is used to accommodate the blocking part so that the blocking part switches to the avoidance state.

[0023] In one embodiment, the number of the blocking parts is multiple, and the multiple blocking parts are arranged at intervals along the length direction of the paper feed channel.

[0024] In one embodiment, the paper-blocking component has a main body that extends along the length of the paper feed channel and is rotatably mounted on the base, with the blocking portion located on one side of the main body.

[0025] In one embodiment, both ends of the main body are rotatably connected to the base along its length.

[0026] Secondly, embodiments of this application provide a portable printer, including the aforementioned paper dispensing device.

[0027] The advantages or beneficial effects of the above technical solutions include at least the following:

[0028] The paper feeding device of this utility model can achieve single-sheet feeding by adding only a paper-blocking component linked with the moving part to the original structure (the original structure refers to the structure disclosed in CN217201020U). It has fewer parts, a simple and compact structure, and does not take up too much space in the paper feeding device. Therefore, the paper feeding device can be used in portable printers without increasing the cost too much, which helps to promote the application of portable printers. Specifically, when the moving part abuts against the paper feeding part to reduce the paper feeding space (i.e., when the paper feeding part is conveying the target paper), the moving part separates from the paper blocking part, allowing the paper blocking part to rotate to an avoidance state under its own weight. At this time, the paper blocking part exits the paper feed channel, ensuring that the target paper can be conveyed to the printing mechanism. When the moving part separates from the paper feeding part to increase the paper feeding space (i.e., during the process of the paper feeding part conveying the target paper to the printing mechanism), the moving part abuts against the paper blocking part, causing the paper blocking part to rotate to a paper blocking state. At this time, at least a portion of the paper blocking part extends into the paper feed channel and abuts against the remaining paper, thereby restricting the movement of the remaining paper (excluding the target paper) along with the target paper, thus preventing the remaining paper from following. This achieves single-page paper feeding, thereby preventing multiple pages from being fed and triggering the paper jam sensor of the paper feeding device, i.e., preventing paper jams, ensuring printing stability, and thus improving the user experience.

[0029] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0030] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0031] Figure 1 This is a three-dimensional structural diagram of the paper-taking device of this utility model from a first-person perspective.

[0032] Figure 2 for Figure 1 A cross-sectional view along direction AA, showing the paper-stopping component in a clearance state;

[0033] Figure 3 for Figure 1 A cross-sectional view along direction AA, showing the paper-blocking component in the paper-blocking state;

[0034] Figure 4This is a three-dimensional structural diagram of the paper-taking device of this utility model from a second perspective.

[0035] Figure 5 This is a three-dimensional structural diagram of the paper-taking device of this utility model from a third-person perspective.

[0036] Figure 6 for Figure 5 A magnified view of section A in the image.

[0037] Figure Labels

[0038] 1. Base; 11. Limiting groove; 2. Paper feeding component; 3. Paper feeding channel; 4. Paper picking component; 5. Paper picking space; 6. Drive assembly; 7. Moving component; 71. Inclined guide; 72. Positioning part; 73. Clearing groove; 8. Paper blocking component; 81. Linkage part; 82. Blocking part; 83. Main body. Detailed Implementation

[0039] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0040] While large printers on the market are equipped with paper-blocking mechanisms to prevent subsequent paper from being fed, thus ensuring single-page paper feeding and preventing paper jams, these paper-blocking mechanisms typically include a motor, gears, cams, and paper-blocking components. These components are numerous and take up a lot of space, making them difficult to apply to portable printers (i.e., small printers) with limited space. Therefore, the applicant proposes a paper-feeding device and a portable printer using such a paper-feeding device.

[0041] See Figures 1-6 This invention illustrates a preferred embodiment of a paper-taking device, comprising:

[0042] Base 1;

[0043] Paper feeding component 2 is rotatably mounted on base 1, and a paper feeding channel 3 is formed between paper feeding component 2 and base 1;

[0044] Paper taking component 4 is rotatably mounted on base 1. Paper taking component 4 and paper feeding component 2 form paper taking space 5. Paper taking space 5 is used for placing paper. Paper taking space 5 is connected to paper feeding channel 3.

[0045] Drive component 6 is mounted on base 1;

[0046] The movable component 7 is movably disposed on the base 1 and is connected to the output end of the drive assembly 6 so as to be driven to move by the drive assembly 6; and

[0047] Paper-blocking component 8 is rotatably mounted on base 1 and has an avoidance state and a paper-blocking state.

[0048] In the avoidance state, the moving part 7 abuts against the paper-taking part 4 and drives the paper-taking part 4 to rotate forward to reduce the paper-taking space 5 (e.g., Figure 2 As shown, at this time, the lower end of the paper-taking component 4 is close to the paper-feeding component 2, so that the paper is in close contact with the paper-feeding component 2, ensuring that the paper-feeding component 2 can transport the target paper in contact with it towards the paper feed channel 3 when it rotates. Then, the paper feeding mechanism transports the target paper to the printing mechanism. At the same time, the moving component 7 separates from the paper-blocking component 8, so that the paper-blocking component 8 exits the paper feed channel 3, thereby enabling the paper-feeding component 2 to push the target paper forward.

[0049] When the paper is stopped, the moving part 7 separates from the paper taking part 4, allowing the paper taking part 4 to rotate in the opposite direction to increase the paper taking space 5 (specifically as follows). Figure 3 As shown, at this time, the lower end of the paper feeding component 4 is away from the paper feeding component 2, thereby separating the paper from the paper feeding component 2. At the same time, the moving component 7 abuts against the paper blocking component 8, so that at least a part of the paper blocking component 8 extends into the paper feed channel 3. At this time, the part of the paper blocking component 8 extending into the paper feed channel 3 abuts against the lower end of the remaining paper, thereby blocking the remaining paper from following. This achieves single-page paper feeding, preventing multiple pages from being fed and triggering the paper jam sensor of the paper feeding device, i.e., preventing paper jams, ensuring printing stability, and thus improving the user experience.

[0050] The paper feeding device of this utility model can achieve single-sheet feeding by adding only a paper-blocking component 8 linked with the moving component 7 to the original structure (the original structure refers to the structure disclosed in CN217201020U). It has fewer parts, a simple and compact structure, and does not occupy too much space in the paper feeding device. Therefore, the paper feeding device can be used in portable printers without increasing the cost too much, which helps to promote the application of portable printers. Specifically, when the moving part 7 abuts against the paper feeding part 4 to reduce the paper feeding space 5 (i.e., when the paper feeding part 2 is conveying the target paper), the moving part 7 separates from the paper blocking part 8, allowing the paper blocking part 8 to rotate to an avoidance state under its own weight. At this time, the paper blocking part 8 exits the paper feeding channel 3, ensuring that the target paper can be conveyed to the printing mechanism. When the moving part 7 separates from the paper feeding part 4 to increase the paper feeding space 5 (i.e., during the process of the paper feeding part 2 conveying the target paper to the printing mechanism), the moving part 7 abuts against the paper blocking part 8, causing the paper blocking part 8 to rotate to a paper blocking state. At this time, at least a portion of the paper blocking part 8 extends into the paper feeding channel 3 and abuts against the remaining paper, thereby restricting the movement of the remaining paper except the target paper, thus preventing the remaining paper from following the target paper and achieving single-page feeding. This prevents multiple pages from being fed, which would trigger the paper jam sensor of the paper feeding device, thus preventing paper jams, ensuring printing stability, and improving the user experience.

[0051] It is understandable that when the moving part 7 separates from the paper-blocking part 8, the paper-blocking part 8 can at least rotate to the avoidance state under its own gravity.

[0052] It is understood that the specific connection method between the paper feed component 2 and the base 1 is existing technology. For details, please refer to the original structure (the structure disclosed in CN217201020U). The paper feed component 2 is driven to rotate by the drive mechanism set on the base 1. The drive mechanism also refers to the original structure and will not be described in detail here.

[0053] It is understood that the specific connection method between the paper taking component 4 and the base 1 is existing technology, and the original structure (the structure disclosed in CN217201020U) can be referred to for details.

[0054] It is understood that the specific structure of the driving component 6 is existing technology, and the original structure (the structure disclosed in CN217201020U) can be referred to for details, which will not be repeated here.

[0055] In one embodiment, when the moving part 7 separates from the paper-blocking part 8, the paper-blocking part 8 can also rotate in the direction of paper movement as the target paper moves. This drives the paper-blocking part 8 to rotate to the avoidance state while the target paper moves toward the printing mechanism. This structure has high reliability and does not require an additional drive mechanism to reset the paper-blocking part 8, simplifying the structure and helping to further reduce the cost of the paper-taking device. At the same time, since the rotation direction of the paper-blocking part 8 when it switches to the avoidance state is towards the direction of the target paper movement, this rotation direction can effectively utilize the momentum of the paper channel, preventing the paper-blocking part 8 from unexpectedly rebounding due to external forces such as vibration in the avoidance state. This ensures the reliability and stability of the avoidance state and improves the accuracy and reliability of paper taking.

[0056] Of course, in other embodiments, an elastic member can also be provided between the base 1 and the paper-blocking member 8. The elastic member is used to provide an elastic force to maintain the paper-blocking member 8 in a clearance state. In this way, when the moving member 7 moves to abut against the paper-blocking member 8, it can overcome the above-mentioned elastic force and switch the paper-blocking member 8 to the paper-blocking state. When the moving member 7 moves to separate from the paper-blocking member 8, the paper-blocking member 8 resets to the clearance state under the action of the elastic force of the elastic member, resulting in higher structural reliability.

[0057] See Figures 5-6 In one embodiment, the moving part 7 is provided with an inclined guide part 71, which extends along the moving direction of the moving part 7, that is, the bottom end and the top end of the inclined guide part 71 are respectively located on both sides of the moving direction of the moving part 7.

[0058] The paper-stopping component 8 is provided with a linkage part 81, which is slidably engaged with the inclined guide part 71. When the linkage part 81 slides to abut against the high end of the inclined guide part 71, the paper-stopping component 8 maintains the paper-stopping state, that is, the linkage part 81 abuts against the high end of the inclined guide part 71, thereby restricting the paper-stopping component 8 to the paper-stopping state. When the linkage part 81 slides to the bottom end of the inclined guide part 71, the paper-stopping component 8 maintains the avoidance state, that is, when the linkage part 81 is at the bottom end of the inclined guide part 71, it disengages from the inclined guide part 71, releasing the rotation limit of the paper-stopping component 8. Thus, the paper-stopping component 8 can be reset to the avoidance state under the action of its own weight and / or the frictional force generated by the movement of the target paper. The structure is simple and highly reliable.

[0059] See Figures 5-6 In one embodiment, the moving part 7 is further provided with a positioning part 72, which is connected to the high end of the tilting guide part 71. When the positioning part 72 cooperates with the linkage part 81, the paper-blocking part 8 maintains the paper-blocking state. That is, by cooperating with the linkage part 81, the positioning part 72 is rotated and limited, ensuring that the paper-blocking part 8 is reliably restricted to the paper-blocking state, thereby improving structural stability.

[0060] See Figures 5-6 In one embodiment, the positioning part 72 is a horizontal surface extending along the moving direction of the moving part 7. The positioning part 72 with the horizontal surface structure can not only reliably cooperate with the linkage part 81, but also make it easy for the linkage part 81 to enter or exit the horizontal surface, so that the state transition of the paper stop part 8 is smoother and more stable, avoiding jamming and stopping, and improving the structural reliability.

[0061] See Figures 5-6 In one embodiment, the moving part 7 has a clearance groove 73, which is connected to the bottom end of the inclined guide part 71. When the clearance groove 73 cooperates with the linkage part 81, the paper-stopping part 8 maintains the clearance state. That is, when the linkage part 81 falls into the clearance groove 73, the paper-stopping part 8 separates from the moving part 7, ensuring that the paper-stopping part 8 reliably maintains the clearance state and preventing the paper-stopping part 8 from being accidentally displaced due to external forces such as vibration or paper friction in the clearance state. This ensures the reliability and stability of the clearance state, thereby improving the accuracy and reliability of the entire paper-taking process. In addition, the clearance groove 73 provides rotation space for the linkage part 81 when the paper-stopping part 8 returns to the clearance state, ensuring that the rotation of the paper-stopping part 8 is smoother and more reliable, and preventing jamming.

[0062] See Figures 2-4 In one embodiment, the paper-blocking component 8 is provided with a blocking part 82, which has the aforementioned paper-blocking state and avoidance state.

[0063] The base 1 has a limiting groove 11, which is connected to the paper feed channel 3. The limiting groove 11 is used to accommodate the blocking part 82 so that the blocking part 82 is switched to the avoidance state. That is, when the paper blocking component 8 is in the avoidance state, the blocking part 82 is housed in the limiting groove 11, thereby ensuring that the paper blocking component 8 reliably exits the paper feed channel 3, which can further improve the stability and reliability of the avoidance state.

[0064] See Figure 4 In one embodiment, there are multiple blocking parts 82, which are arranged at intervals along the length of the paper feed channel 3. Thus, the multiple spaced-apart blocking parts 82 can form multiple reliable blocking points with the paper, effectively preventing follow-up caused by localized paper deformation. Furthermore, regardless of the paper width, the multiple spaced-apart blocking parts 82 ensure that at least one point in the paper width direction provides reliable blocking, enhancing the compatibility of the paper feeding device with different paper sizes.

[0065] See Figures 5-6In one embodiment, the paper-blocking component 8 has a main body 83 extending along the length of the paper feed channel 3. The main body 83 is rotatably mounted on the base 1. The blocking part 82 is located on one side of the main body 83, and the linkage part 81 is located on the other side of the main body 83. That is, the paper-blocking component 8 is rotatably mounted by rotatably connecting the main body 83 to the base 1, providing rotational support for multiple blocking parts 82 and linkage parts 81, ensuring that multiple blocking parts 82 rotate synchronously and consistently, thereby ensuring the integrity and reliability of paper blocking and avoidance.

[0066] See Figure 5 In one embodiment, both ends of the main body 83 in the longitudinal direction can be rotatably connected to the base 1 to reliably install the main body 83 on the base 1, ensuring that the paper stop component 8 rotates more stably and smoothly.

[0067] Specifically, in one embodiment, the base 1 has two connection holes, which are spaced apart;

[0068] One end of the main body 83 is rotatably inserted into one of the connecting holes along its length, and the other end is rotatably inserted into another connecting hole, thereby enabling the main body 83 to be reliably installed on the base 1.

[0069] Another embodiment of this utility model provides a portable printer, including the paper feeding device described above.

[0070] The portable printer of this utility model, by adopting the aforementioned paper feeding device, can achieve single-sheet paper feeding by simply adding a paper-blocking component 8 linked with the moving component 7 to the original structure (refer to the structure disclosed in CN217201020U). It has fewer parts, a simple and compact structure, and does not occupy too much space in the paper feeding device. Therefore, the paper feeding device can be used in portable printers without increasing costs too much, which helps to promote the application of portable printers.

[0071] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0072] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0073] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A paper-taking device, characterized in that, include: Base; A paper feeding component is rotatably mounted on the base, and a paper feeding channel is formed between the paper feeding component and the base; A paper-taking component is rotatably mounted on the base, and a paper-taking space is formed between the paper-taking component and the paper-feeding component, the paper-taking space being connected to the paper feed channel; A driving component, wherein the driving component is disposed on the base; A movable component is movably disposed on the base and connected to the output end of the drive assembly so as to be driven to move by the drive assembly; as well as A paper-blocking component is rotatably mounted on the base, and the paper-blocking component has an avoidance state and a paper-blocking state; In the avoidance state, the moving part abuts against the paper taking part and drives the paper taking part to rotate forward to reduce the paper taking space. At the same time, the moving part separates from the paper blocking part so that the paper blocking part exits the paper feeding channel, thereby enabling the paper feeding part to push the target paper forward. In the paper-blocking state, the moving part separates from the paper-taking part, allowing the paper-taking part to rotate in the opposite direction to increase the paper-taking space. At the same time, the moving part abuts against the paper-blocking part, so that at least a portion of the paper-blocking part extends into the paper feed channel, thereby blocking the remaining paper from following.

2. The paper feeding device according to claim 1, characterized in that, When the moving part is separated from the paper-blocking part, the paper-blocking part can also rotate in the direction of paper movement as the target paper moves.

3. The paper feeding device according to claim 1, characterized in that, The moving component is provided with an inclined guide portion, which extends along the moving direction of the moving component; The paper-blocking component is provided with a linkage part, which is slidably engaged with the inclined guide part. When the linkage part slides to abut against the high end of the inclined guide part, the paper-blocking component maintains the paper-blocking state. When the linkage part slides to the bottom end of the inclined guide part, the paper-blocking component maintains the avoidance state.

4. The paper-taking device according to claim 3, characterized in that, The moving component is also provided with a positioning part, which is connected to the high end of the tilting guide part. When the positioning part cooperates with the linkage part, the paper-blocking component maintains the paper-blocking state.

5. The paper feeding device according to claim 4, characterized in that, The positioning part is a horizontal surface that extends along the moving direction of the moving component.

6. The paper-taking device according to claim 3, characterized in that, The moving component has a clearance groove that connects to the bottom end of the inclined guide portion. When the clearance groove engages with the linkage portion, the paper stop component maintains the clearance state.

7. The paper-taking device according to claim 1, characterized in that, The paper-blocking component is provided with a blocking part, which has the paper-blocking state and the avoidance state; The base has a limiting groove that connects to the paper feed channel and is used to accommodate the blocking part so that the blocking part switches to the avoidance state.

8. The paper-taking device according to claim 7, characterized in that, The number of the blocking parts is multiple, and the multiple blocking parts are arranged at intervals along the length direction of the paper feed channel.

9. The paper feeding device according to claim 8, characterized in that, The paper-blocking component has a main body that extends along the length of the paper feed channel and is rotatably mounted on the base. The blocking part is located on one side of the main body.

10. A portable printer, characterized in that, The paper-taking device includes any one of claims 1-9.

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