A scanning and printing all-in-one machine

Abstract

The utility model relates to the technical field of sheet media processing, and specifically discloses a scanning and printing all-in-one machine, which comprises a rack, a printing head, an image sensor and a paper holding mechanism, the rack is provided with a conveying channel, the conveying channel comprises a scanning channel and a printing channel which are arranged at intervals; the printing head is arranged in the printing channel; the image sensor is arranged in the scanning channel; the paper holding mechanism comprises a movable piece and a paper holding space, the paper holding space is provided with an opening arranged between the scanning channel and the printing channel, the movable piece is movably connected with the rack and has a first position and a second position, when the movable piece is located at the second position, the movable piece closes the opening to make the scanning channel and the printing channel communicate, and when the movable piece is located at the first position, the movable piece opens the opening to make the scanning channel and the printing channel discontinuously communicate and enable the sheet media to enter the paper holding space through the opening for temporary storage, thereby avoiding the sheet media from being squeezed in the conveying channel and causing blockage, and improving the operation reliability of the scanning and printing all-in-one machine.

Description

Technical Field

[0001] This utility model relates to the field of thin-film media processing technology, and in particular to a scanning and printing all-in-one machine. Background Technology

[0002] The scanning and printing all-in-one machine in the related technology includes a frame and an image sensor and a print head mounted on the frame. The frame is provided with a conveying channel for the sheet-like media to move forward or backward. Along the forward direction of the sheet-like media, the image sensor is located upstream of the print head. The print head is used to print preset content on the surface of the sheet-like media, and the image sensor is used to acquire an image of the sheet-like media. When a scanning and printing all-in-one machine is used in lottery prize redemption scenarios, it first needs to determine whether the lottery is a winning ticket by acquiring a full-page image of the ticket through an image sensor. Based on the determination result, it controls the print head to print preset content on the ticket. To enable the print head to print preset content at any position on the ticket according to customer needs, the existing technology has two solutions. The first solution is to set the distance between the image sensor and the print head to be greater than or equal to the length of the ticket. As the ticket moves forward, the image sensor is first controlled to acquire a full-page image of the ticket, and then the print head is controlled to print the preset content on the ticket. However, for longer tickets, the transport channel needs to be long enough, which is not conducive to the miniaturization of the scanning and printing all-in-one machine. The second solution is to set the distance between the image sensor and the print head to be compact. As the ticket moves forward, the image sensor is controlled to acquire a full-page image of the ticket, and as the ticket moves backward, the print head is controlled to print the preset content on the ticket. However, for longer tickets, the space in the transport channel is limited, causing the ticket to wrinkle or break due to compression in the transport channel, or even causing thin sheet-like media to get stuck in the transport channel. Utility Model Content

[0003] The purpose of this invention is to provide a scanning and printing all-in-one machine to avoid jamming caused by the compression of thin sheet media in the conveying channel, thereby improving the operational reliability of the scanning and printing all-in-one machine.

[0004] This utility model provides a scanning and printing all-in-one machine, which includes:

[0005] The frame is equipped with a conveyor channel, which includes a scanning channel and a printing channel arranged at intervals.

[0006] A printhead is disposed in the print channel and is used to print specified content on a sheet-like medium;

[0007] An image sensor is disposed in the scanning channel and is used to acquire images of sheet-like media;

[0008] A paper holding mechanism includes a movable component and a paper holding space located on one side of the transport channel. The paper holding space has an opening disposed between the scanning channel and the printing channel. The movable component is movably connected to the frame and has a first position and a second position relative to the frame. When the movable component is in the first position, it opens the opening to disconnect the scanning channel and the printing channel, allowing sheet-like media to enter the paper holding space through the opening. When the movable component is in the second position, it closes the opening to connect the scanning channel and the printing channel.

[0009] As a preferred technical solution for a scanning and printing all-in-one machine, the scanning channel is located upstream of the printing channel along the forward direction of the sheet-like medium;

[0010] When the movable part is in the first position, the printing channel is connected to the opening and the movable part is blocked between the printing channel and the scanning channel; or, when the movable part is in the first position, the movable part enters the paper-containing space.

[0011] As a preferred technical solution for a scanning and printing all-in-one machine, the movable component is pivotally connected to the frame via a rotating shaft. The movable component can rotate relative to the frame around the axis of the rotating shaft to the first position or the second position. The movable component has a first guide surface and a second guide surface arranged opposite to each other, and the frame is provided with a third guide surface.

[0012] When the movable component rotates to the first position, with the printing channel communicating with the opening and the movable component blocking the printing channel and the scanning channel, the first guide surface and the third guide surface face each other and form a guide channel communicating with the opening. The guide channel is used to guide sheet-like media from the opening into the paper-containing space. When the movable component rotates to the second position, the second guide surface is used to guide sheet-like media from the scanning channel into the printing channel.

[0013] As a preferred technical solution for a scanning and printing all-in-one machine, the paper holding mechanism further includes an elastic element, which is configured to make the movable element always tend to rotate toward the first position, and to drive the movable element to rotate to the second position when the front end of the sheet-like medium abuts against the movable element.

[0014] As a preferred technical solution for a scanning and printing all-in-one machine, the scanning and printing all-in-one machine further includes a paper separating mechanism. Along the forward direction of the sheet-like media, the paper separating mechanism is located upstream of the scanning channel, and the paper separating mechanism is used to allow the stacked sheet-like media to enter the scanning channel one sheet at a time.

[0015] As a preferred technical solution for a scanning and printing all-in-one machine, the scanning and printing all-in-one machine further includes a printing roller, a conveying roller, a first motor and a second motor. The conveying roller is disposed between the image sensor and the paper separating mechanism. The printing roller cooperates with the print head. The first motor is simultaneously connected to the conveying roller and the printing roller for transmission. The first motor is used to drive the conveying roller and the printing roller to rotate.

[0016] The paper separating mechanism includes a kicking roller, a separating roller, and a blocking roller. The kicking roller and the separating roller are arranged sequentially along the forward direction of the sheet-like medium. The second motor is simultaneously connected to the kicking roller and the separating roller for driving the kicking roller and the separating roller to rotate. The blocking roller is arranged opposite to the separating roller.

[0017] As a preferred technical solution for a scanning and printing all-in-one machine, the scanning and printing all-in-one machine also includes a third motor, and the paper holding mechanism also includes a temporary storage channel and a transmission component both disposed within the paper holding space. The temporary storage channel is arranged in an arc shape, and the transmission component is connected to the third motor for transmission. The transmission component is used to drive the sheet-like medium entering the paper holding space into the temporary storage channel and to wind it along the temporary storage channel.

[0018] As a preferred technical solution for a scanning and printing all-in-one machine, the paper holding mechanism further includes a winding wheel, which is rotatably disposed within the paper holding space. The transmission component includes a conveyor belt, which surrounds the winding wheel and forms at least a portion of the temporary storage channel between itself and the outer circumferential surface of the winding wheel. When the conveyor belt moves, it can drive the winding wheel to rotate around its own axis, and one end of the conveyor belt and the winding wheel form the entrance to the temporary storage channel.

[0019] The movable component is provided with a first guide surface, and the frame is provided with a third guide surface. When the movable component rotates to the first position, the first guide surface and the third guide surface are opposite to each other and form a guide channel between them. The first end of the guide channel is adjacent to and connected to the opening, and the second end of the guide channel is adjacent to and connected to the inlet. The guide channel is used to guide sheet-like media from the opening into the inlet.

[0020] As a preferred technical solution for a scanning and printing all-in-one machine, the transmission assembly further includes a driving wheel and a plurality of driven wheels arranged sequentially along the outer periphery of the winding wheel. The driving wheel is connected to the third motor, and the conveyor belt is supported by the driving wheel and the plurality of driven wheels.

[0021] As a preferred technical solution for a scanning and printing all-in-one machine, the paper holding mechanism includes a first arc-shaped channel plate and a second arc-shaped channel plate. The inner circumferential surface of the first arc-shaped channel plate is opposite to the outer circumferential surface of the second arc-shaped channel plate, and a temporary storage channel is formed between them. The transmission component includes a plurality of drive rollers arranged at intervals along the temporary storage channel. Each drive roller is connected to the third motor for transmission. The drive rollers are used to drive sheet-like media into the temporary storage channel and wind them along the temporary storage channel.

[0022] The scanning and printing all-in-one machine provided by this utility model has at least the following beneficial effects:

[0023] The scanner-printer includes a frame, a printhead, an image sensor, and a paper holding mechanism. The frame has a transport channel, which includes a scanning channel and a printing channel spaced apart. The printhead is located in the printing channel and is used to print pre-defined content on a sheet-like medium. The image sensor is located in the scanning channel and is used to acquire images of the sheet-like medium. The paper holding mechanism includes a movable component and a paper holding space located on one side of the transport channel. The paper holding space has an opening located between the scanning channel and the printing channel. The movable component is movably connected to the frame and has a first position and a second position relative to the frame. When the movable component is in the first position, it opens the opening to disconnect the scanning channel and the printing channel, allowing the sheet-like medium to enter the paper holding space through the opening. When the movable component is in the second position, it closes the opening to connect the scanning channel and the printing channel. With this configuration, for longer sheet-like media, after the image sensor acquires a full-width image of the sheet-like media or during the process of acquiring a full-width image of the sheet-like media, the moving part is positioned in the first position. The sheet-like media in the transport channel can enter the paper holding space through the opening for temporary storage. This allows the image sensor to acquire a full-width image of the sheet-like media while the print head prints preset content on the sheet-like media, avoiding jamming caused by compression in the transport channel and improving the operational reliability of the scanning and printing all-in-one machine. Attached Figure Description

[0024] Figure 1 This is a first cross-sectional view of the scanning and printing all-in-one machine in this embodiment of the present invention;

[0025] Figure 2 This is a second cross-sectional view of the scanning and printing all-in-one machine in an embodiment of this utility model;

[0026] Figure 3 for Figure 1 Enlarged view of point A (movable part in the first position);

[0027] Figure 4This is an enlarged view of the first partial structure of the scanning and printing all-in-one machine in this embodiment of the present invention (the moving part is located in the second position);

[0028] Figure 5 This is a schematic diagram of the structure of the movable component in an embodiment of this utility model;

[0029] Figure 6 This is an enlarged view of the second partial structure of the scanning and printing all-in-one machine in this embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of the scanning and printing all-in-one machine in the embodiment of this utility model;

[0031] Figure 8 This is a partial structural diagram of the scanning and printing all-in-one machine in an embodiment of this utility model.

[0032] In the picture:

[0033] 1. Frame; 11. Conveyor channel; 111. Scanning channel; 112. Printing channel; 12. Third guide surface; 13. Second channel plate; 131. Groove; 14. Fourth guide surface;

[0034] 2. Printhead; 3. Image sensor;

[0035] 4. Paper holding mechanism; 41. Moving parts; 411. Rotating shaft; 412. Flip plate; 413. First guide surface; 414. Second surface; 415. Second guide surface; 42. Paper holding space; 421. Opening; 422. Guide channel; 43. Temporary storage channel; 431. Entrance; 44. Transmission assembly; 441. Conveyor belt; 442. Driving wheel; 443. Driven wheel; 45. Winding wheel;

[0036] 5. Paper separating mechanism; 51. Paper kicking roller; 52. Paper separating roller; 53. Paper blocking roller;

[0037] 61. Printing roller; 62. Conveyor roller;

[0038] 71. First motor; 72. Second motor;

[0039] 8. First photoelectric sensor. Detailed Implementation

[0040] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0041] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0044] Please refer to Figures 1 to 4This embodiment provides a scanning and printing all-in-one machine, which includes a frame 1, a print head 2, an image sensor 3, and a paper holding mechanism 4. The frame 1 is provided with a conveying channel 11, which includes a scanning channel 111 and a printing channel 112 spaced apart. A printhead 2 is disposed in the printing channel 112 and is used to print set content on a sheet-like medium. An image sensor 3 is disposed in the scanning channel 111 and is used to acquire an image of the sheet-like medium. A paper holding mechanism 4 includes a movable part 41 and a paper holding space 42 located on one side of the conveying channel 11. The paper holding space 42 has an opening 421, which is disposed between the scanning channel 111 and the printing channel 112. The movable part 41 is movably connected to the frame 1 and has a first position and a second position relative to the frame 1. When the movable part 41 is in the first position, the movable part 41 opens the opening 421 so that the scanning channel 111 and the printing channel 112 are disconnected and the sheet-like medium can enter the paper holding space 42 through the opening 421. When the movable part 41 is in the second position, the movable part 41 closes the opening 421 so that the scanning channel 111 and the printing channel 112 are connected. The scanning and printing all-in-one machine provided in this embodiment, for long sheet-like media (such as lottery tickets, tickets, etc.), after the image sensor 3 acquires the full-width image of the sheet-like media or during the process of the image sensor 3 acquiring the full-width image of the sheet-like media, makes the movable part 41 in the first position. The sheet-like media in the transport channel 11 can enter the paper holding space 42 through the opening 421 for temporary storage, so as to realize that the image sensor 3 can acquire the full-width image of the sheet-like media and the print head 2 can print the preset content on the sheet-like media. This avoids the sheet-like media being squeezed and jammed in the transport channel 11, and improves the operational reliability of the scanning and printing all-in-one machine.

[0045] It should be noted that in this embodiment, the scanning and printing all-in-one machine is applicable to various lengths of sheet-like media, wherein the length of at least some types of sheet-like media is not less than the distance between the image sensor 3 and the print head 2.

[0046] Optionally, the paper holding mechanism 4 includes a temporary storage box disposed on the frame 1, and the paper holding space 42 is the internal cavity of the temporary storage box.

[0047] Optionally, please refer to again Figures 1 to 4In this embodiment, along the forward direction of the sheet-like medium, the scanning channel 111 is located upstream of the printing channel 112; when the movable member 41 is in the first position, the printing channel 112 is connected to the opening 421 and the movable member 41 is blocked between the printing channel 112 and the scanning channel 111. With this setup, the sheet-like medium is first controlled to move forward. During the process of the image sensor 3 acquiring the image of the sheet-like medium, the movable part 41 is positioned in the second position. At this time, the printing channel 112 is connected to the scanning channel 111, and the sheet-like medium enters the printing channel 112 through the scanning channel 111. When the image sensor 3 acquires the full-width image of the sheet-like medium and the sheet-like medium has completely entered the printing channel 112, the movable part 41 is positioned in the first position. At this time, the printing channel 112 is connected to the opening 421, and the movable part 41 blocks the printing channel 112 and the scanning channel 111. Then, the sheet-like medium is controlled to move backward. The sheet-like medium to be printed in the printing channel 112 can move backward through the opening 421 to the paper holding space 42 for temporary storage. When the front end of the sheet-like medium moves backward to the preset position, the sheet-like medium moves forward along the printing channel 112, and the print head 2 is started at the same time to print the set content on the sheet-like medium. This allows printing at any position on the sheet-like medium as needed, and also avoids the sheet-like medium from being squeezed and jammed in the transport channel 11.

[0048] Alternatively, please refer to Figure 6 The scanning and printing all-in-one machine also includes a controller (not shown in the attached drawings) and a first photoelectric sensor 8 electrically connected to the controller. The first photoelectric sensor 8 is disposed in the printing channel 112 and along the forward direction of the sheet-like medium. The first photoelectric sensor 8 is disposed upstream of the print head 2. The first photoelectric sensor 8 is used to detect the position of the sheet-like medium in the printing channel 112. The controller is configured to control the sheet-like medium to move forward when the sheet-like medium moves backward in the printing channel 112 and the front end of the sheet-like medium passes the first photoelectric sensor 8, and at the same time control the print head 2 to start and print the set content on the sheet-like medium, that is, the preset position is the setting position of the first photoelectric sensor 8.

[0049] As an alternative, along the forward direction of the sheet-like medium, the scanning channel 111 is located upstream of the printing channel 112. When the movable member 41 is in the first position, the movable member 41 enters the paper-containing space 42. Preferably, the scanning and printing all-in-one machine further includes a printing drive roller and a scanning drive roller. The printing drive roller is disposed in the printing channel 112 and is used to drive the movement of the sheet-like medium within the printing channel 112. The scanning drive roller is disposed in the scanning channel 111 and is used to drive the movement of the sheet-like medium within the scanning channel 111. Before the image sensor 3 acquires an image of the sheet-like medium, the movable part 41 is in the second position. During the process of the image sensor 3 acquiring the image of the sheet-like medium, the scanning drive roller drives the sheet-like medium, whose image has been acquired by the image sensor 3, to advance to the printing channel 112. When the front end of the sheet-like medium advances to the printing drive roller, the printing drive roller stops running and prevents the front end of the sheet-like medium from continuing to advance. When the scanning drive roller drives the rear end of the sheet-like medium to continue to advance, the sheet-like medium can drive the movable part 41 to move to the first position, so that the movable part 41 enters the paper holding space 42 to open the opening 421, and the sheet-like medium bends towards the paper holding space 42 and is temporarily stored in the paper holding space 42. After the image sensor 3 acquires the full-width image of the sheet-like medium, the printing drive roller drives the sheet-like medium in the printing channel 112 to move, and at the same time, the print head 2 is started to print the set content on the sheet-like medium. Similarly, it can print at any position on the sheet-like medium as needed, and avoid the sheet-like medium from being squeezed and jammed in the transport channel 11.

[0050] Alternatively, please refer to Figures 3 to 5 In this embodiment, the movable member 41 is pivotally connected to the frame 1 via a pivot 411. The movable member 41 can rotate relative to the frame 1 around the axis of the pivot 411 to a first position or a second position. The movable member 41 has a first guide surface 413 and a second guide surface 415 arranged opposite to each other. The frame 1 is provided with a third guide surface 12. When the movable member 41 rotates to the first position, the first guide surface 413 and the third guide surface 12 are opposite to each other and form a guide channel 422 communicating with the opening 421. The guide channel 422 is used to guide the sheet-like medium from the opening 421 into the paper holding space 42. When the movable member 41 rotates to the second position, the second guide surface 415 is used to guide the sheet-like medium from the scanning channel 111 into the printing channel 112. This configuration improves the reliability of sheet-like media retracting from the printing channel 112 to the paper holding space 42 when the movable member 41 is in the first position, and improves the reliability of sheet-like media advancing from the scanning channel 111 to the printing channel 112 when the movable member 41 is in the second position. In other embodiments, the movable member 41 can also be slidably connected to the frame 1, and the movable member 41 can slide relative to the frame 1 to the first position or the second position.

[0051] Alternatively, please refer to Figures 3 to 6 The frame 1 includes a first channel plate (not shown in the figure) and a second channel plate 13 arranged opposite to each other and spaced apart. A movable member 41 is pivotally connected to the first channel plate via a pivot 411. The movable member 41 includes multiple flaps 412 arranged at intervals along the axial direction of the pivot 411. Each flap 412 includes a first surface and a second surface 414 arranged opposite to each other. The multiple first surfaces form a first guide surface 413, and the multiple second surfaces 414 form a second guide surface 415. The second channel plate 13 is provided with multiple grooves 131. When the movable member 41 is in the second position, the multiple flaps 412 are inserted into the multiple grooves 131 in a one-to-one correspondence. When the movable member 41 is in the first position, each flap 412 is separated from its corresponding groove 131. This arrangement further improves the reliability of sheet-like media retracting from the printing channel 112 to the paper holding space 42 through the cooperation of the flaps 412 and the grooves 131. Preferably, the first channel plate is provided with a slot, the rotating shaft 411 is inserted into the slot and can rotate around its own axis, and multiple flaps 412 are fixedly connected to the rotating shaft 411.

[0052] Optionally, the paper-holding mechanism 4 also includes an elastic element configured to ensure that the movable member 41 always tends to rotate towards the first position, and to drive the movable member 41 to rotate to the second position when the front end of the sheet-like medium abuts against it. With this configuration, during the process of the sheet-like medium entering the printing channel 112 via the scanning channel 111, the movable member 41 is driven to the second position by the sheet-like medium, so that the movable member 41 does not obstruct the movement of the sheet-like medium. When the rear end of the sheet-like medium enters the printing channel 112, the movable member 41 moves to the first position under the drive of the elastic element, realizing the switching of the movable member 41 between the first and second positions. Preferably, the elastic element is a torsion spring, which is sleeved on the rotating shaft 411, and the two torsion arms of the torsion spring are respectively connected to the frame 1 and the flip plate 412. In other embodiments, the elastic element can also be a tension spring or a compression spring, etc.

[0053] As one alternative, the paper holding mechanism 4 includes a drive motor, which is connected to the movable part 41. The drive motor is used to drive the movable part 41 to rotate to a first position or a second position, and can also switch the movable part 41 between the first position and the second position.

[0054] Alternatively, please refer to Figure 1 and Figure 2The multifunction printer also includes a paper separating mechanism 5, located upstream of the scanning channel 111 along the direction of travel of the sheet-like media. The paper separating mechanism 5 is used to allow stacked sheet-like media to enter the scanning channel 111 one by one. This configuration allows multiple sheet-like media to be stacked and placed in the paper separating mechanism 5, which then drives them one by one into the scanning channel 111. This eliminates the need for the user to place the sheet-like media individually, improving the multifunction printer's efficiency in handling sheet-like media.

[0055] Alternatively, please refer to Figure 1 , Figure 2 and Figure 7 The scanning and printing all-in-one machine also includes a printing roller 61, a conveying roller 62, a first motor 71, and a second motor 72. The conveying roller 62 is located between the image sensor 3 and the paper separating mechanism 5. The printing roller 61 cooperates with the print head 2. The first motor 71 is connected to both the conveying roller 62 and the printing roller 61 for driving them to rotate. The paper separating mechanism 5 includes a kicking roller 51, a separating roller 52, and a blocking roller 53. The kicking roller 51 and the separating roller 52 are arranged sequentially along the forward direction of the sheet-like medium. The second motor 72 is connected to both the kicking roller 51 and the separating roller 52 for driving them to rotate. The blocking roller 53 is positioned opposite to the separating roller 52. This configuration allows the paper separating mechanism 5 to be independently driven by the second motor 72. Therefore, when the first sheet of sheet-like media in the printing channel 112 is driven backward by the printing roller 61, the second motor 72 can be stopped to prevent the kicking roller 51 and the separating roller 52 from continuing to drive the second sheet of sheet-like media into the printing channel 112, thus improving the reliability of processing sheet-like media. Both the kicking roller 51 and the separating roller 52 are used to drive the sheet-like media in contact with them forward, while the blocking roller 53 prevents the sheet-like media in contact with it from entering between the separating roller 52 and the blocking roller 53. This allows a single sheet of sheet-like media in contact with the separating roller 52 to enter between the separating roller 52 and the blocking roller 53 and be output, thus outputting a single sheet of sheet-like media.

[0056] Optionally, the scanner-printer also includes a second photoelectric sensor (not shown in the figures). The second photoelectric sensor is disposed between the conveyor roller 62 and the paper separating mechanism 5. The second photoelectric sensor is used to detect the position of the sheet-like media within the scanning channel 111. The controller is configured to stop the second motor 72 when the rear end of the first sheet-like media passes the second photoelectric sensor and the front end of the second sheet-like media moves to the second photoelectric sensor. This configuration allows for accurate control of the second sheet-like media to stop upstream of the conveyor roller 62 when the first sheet-like media moves backward, preventing the conveyor roller 62 from driving the second sheet-like media backward when it rotates in the opposite direction under the drive of the first motor 71, thus improving the reliability of processing sheet-like media.

[0057] Alternatively, please refer to Figure 1 The scanner-printer also includes a third motor (not shown in the attached drawings). The paper holding mechanism 4 includes a temporary storage channel 43 and a transmission component 44, both disposed within the paper holding space 42. The temporary storage channel 43 is arc-shaped. The transmission component 44 is connected to the third motor and is used to drive the sheet-like media entering the paper holding space 42 into the temporary storage channel 43 and wind it along the temporary storage channel 43. This arrangement allows the sheet-like media entering the paper holding space 42 to wind along the arc-shaped temporary storage channel 43, preventing long sheet-like media from stacking messily and causing jamming within the paper holding space 42.

[0058] Alternatively, please refer to Figure 1 and Figure 8 The paper holding mechanism 4 also includes a winding wheel 45, which is rotatably disposed within the paper holding space 42. The transmission assembly 44 includes a conveyor belt 441, which surrounds the winding wheel 45 and forms at least a portion of a temporary storage channel 43 with the outer peripheral surface of the winding wheel 45. When the conveyor belt 441 moves, it can drive the winding wheel 45 to rotate around its own axis, and one end of the conveyor belt 441 and the winding wheel 45 form an entrance 431 of the temporary storage channel 43. The first end of the guide channel 422 is adjacent to and connected to the opening 421, and the second end of the guide channel 422 is adjacent to and connected to the entrance 431. The guide channel 422 is used to guide sheet-like media from the opening 421 into the entrance 431. This configuration allows the guide channel 422 to guide the sheet-like medium through the inlet 431 of the temporary storage channel 43 into the temporary storage channel 43. The conveyor belt 441 and the winding wheel 45 together hold the sheet-like medium and drive it to move along the temporary storage channel 43, causing the sheet-like medium to wrap around the winding wheel 45, thus improving the reliability of the sheet-like medium winding along the temporary storage channel 43. Preferably, the frame 1 is also provided with a fourth guide surface 14, which faces the outer peripheral surface of the winding wheel 45. The conveyor belt 441 and the fourth guide surface 14 together form the temporary storage channel 43 with the outer peripheral surface of the winding wheel 45.

[0059] Optionally, please refer to again Figure 1 and Figure 8 The transmission assembly 44 also includes a driving wheel 442 and a plurality of driven wheels 443 arranged sequentially along the outer circumference of the winding wheel 45. The driving wheel 442 is connected to a third motor, and the conveyor belt 441 is supported by the driving wheel 442 and the plurality of driven wheels 443. Specifically, this embodiment exemplarily provides a scheme with three driven wheels 443, and the driving wheel 442 and the three driven wheels 443 are evenly distributed along the circumference of the winding wheel 45.

[0060] As an alternative, the paper holding mechanism 4 includes a first arc-shaped channel plate and a second arc-shaped channel plate. The inner circumferential surface of the first arc-shaped channel plate is opposite to the outer circumferential surface of the second arc-shaped channel plate, forming a temporary storage channel 43 between them. The transmission assembly 44 includes multiple drive rollers arranged at intervals along the temporary storage channel 43. Each drive roller is connected to a third motor. The drive rollers are used to drive the sheet-like media into the temporary storage channel 43 and wind it along the temporary storage channel 43. With this configuration, the first and second arc-shaped channel plates can form an arc-shaped temporary storage channel 43. After the guide channel 422 guides the sheet-like media into the temporary storage channel 43, the multiple drive rollers drive the sheet-like media to move along the temporary storage channel 43.

[0061] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A scanning and printing all-in-one machine, characterized in that, include: The frame (1) is provided with a conveying channel (11), which includes a scanning channel (111) and a printing channel (112) arranged at intervals; A print head (2) is disposed in the print channel (112) and is used to print set content on a sheet-like medium; An image sensor (3) is disposed in the scanning channel (111) and is used to acquire images of sheet-like media; The paper holding mechanism (4) includes a movable part (41) and a paper holding space (42) located on one side of the conveying channel (11). The paper holding space (42) has an opening (421) between the scanning channel (111) and the printing channel (112). The movable part (41) is movably connected to the frame (1) and has a first position and a second position relative to the frame (1). When the movable part (41) is in the first position, the movable part (41) opens the opening (421) to disconnect the scanning channel (111) and the printing channel (112) and allow sheet-like media to enter the paper holding space (42) through the opening (421). When the movable part (41) is in the second position, the movable part (41) closes the opening (421) to connect the scanning channel (111) and the printing channel (112).

2. The scanner-printer all-in-one machine according to claim 1, characterized in that, Along the forward direction of the sheet-like medium, the scanning channel (111) is located upstream of the printing channel (112); When the movable part (41) is in the first position, the printing channel (112) is connected to the opening (421) and the movable part (41) is blocked between the printing channel (112) and the scanning channel (111); or, when the movable part (41) is in the first position, the movable part (41) enters the paper holding space (42).

3. The scanning and printing all-in-one machine according to claim 2, characterized in that, The movable part (41) is pivotally connected to the frame (1) via a pivot (411). The movable part (41) can rotate relative to the frame (1) around the axis of the pivot (411) to the first position or the second position. The movable part (41) has a first guide surface (413) and a second guide surface (415) arranged opposite to each other. The frame (1) is provided with a third guide surface (12). When the movable part (41) rotates to the first position, with the printing channel (112) communicating with the opening (421) and the movable part (41) blocking the printing channel (112) and the scanning channel (111), the first guide surface (413) and the third guide surface (12) are opposite to each other and form a guide channel (422) communicating with the opening (421). The guide channel (422) is used to guide the sheet-like medium from the opening (421) into the paper-containing space (42). When the movable part (41) rotates to the second position, the second guide surface (415) is used to guide the sheet-like medium from the scanning channel (111) into the printing channel (112).

4. The scanning and printing all-in-one machine according to claim 3, characterized in that, The paper holding mechanism (4) further includes an elastic element configured to cause the movable element (41) to always have a tendency to rotate toward the first position, and to drive the movable element (41) to rotate to the second position when the front end of the sheet-like medium abuts against the movable element (41).

5. The scanning and printing all-in-one machine according to claim 2, characterized in that, The scanning and printing all-in-one machine also includes a paper separating mechanism (5). Along the forward direction of the sheet-like media, the paper separating mechanism (5) is located upstream of the scanning channel (111). The paper separating mechanism (5) is used to allow the stacked sheet-like media to enter the scanning channel (111) one sheet at a time.

6. The scanning and printing all-in-one machine according to claim 5, characterized in that, The scanning and printing all-in-one machine also includes a printing roller (61), a conveying roller (62), a first motor (71), and a second motor (72). The conveying roller (62) is disposed between the image sensor (3) and the paper separating mechanism (5). The printing roller (61) cooperates with the print head (2). The first motor (71) is simultaneously connected to the conveying roller (62) and the printing roller (61) for transmission. The first motor (71) is used to drive the conveying roller (62) and the printing roller (61) to rotate. The paper separating mechanism (5) includes a kicking roller (51), a separating roller (52), and a blocking roller (53). The kicking roller (51) and the separating roller (52) are arranged sequentially along the forward direction of the sheet-like medium. The second motor (72) is simultaneously connected to the kicking roller (51) and the separating roller (52) for driving the kicking roller (51) and the separating roller (52) to rotate. The blocking roller (53) is arranged opposite to the separating roller (52).

7. The scanning and printing all-in-one machine according to claim 1, characterized in that, The scanning and printing all-in-one machine also includes a third motor. The paper holding mechanism (4) also includes a temporary storage channel (43) and a transmission component (44) both disposed in the paper holding space (42). The temporary storage channel (43) is arc-shaped. The transmission component (44) is connected to the third motor. The transmission component (44) is used to drive the sheet-like medium entering the paper holding space (42) into the temporary storage channel (43) and wind it along the temporary storage channel (43).

8. The scanner-printer all-in-one machine according to claim 7, characterized in that, The paper holding mechanism (4) further includes a winding wheel (45), which is rotatably disposed within the paper holding space (42). The transmission assembly (44) includes a conveyor belt (441), which surrounds the winding wheel (45) and forms at least a portion of the temporary storage channel (43) between itself and the outer peripheral surface of the winding wheel (45). When the conveyor belt (441) moves, it can drive the winding wheel (45) to rotate around its own axis, and one end of the conveyor belt (441) and the winding wheel (45) form the entrance (431) of the temporary storage channel (43). The movable part (41) is provided with a first guide surface (413), and the frame (1) is provided with a third guide surface (12). When the movable part (41) rotates to the first position, the first guide surface (413) and the third guide surface (12) are opposite to each other and form a guide channel (422) between them. The first end of the guide channel (422) is adjacent to and connected to the opening (421), and the second end of the guide channel (422) is adjacent to and connected to the inlet (431). The guide channel (422) is used to guide the sheet-like medium from the opening (421) into the inlet (431).

9. The scanning and printing all-in-one machine according to claim 8, characterized in that, The transmission assembly (44) further includes a drive wheel (442) and a plurality of driven wheels (443) arranged sequentially along the outer periphery of the winding wheel (45). The drive wheel (442) is connected to the third motor for transmission. The conveyor belt (441) is supported by the drive wheel (442) and the plurality of driven wheels (443).

10. The scanning and printing all-in-one machine according to claim 7, characterized in that, The paper holding mechanism (4) includes a first arc-shaped channel plate and a second arc-shaped channel plate. The inner circumferential surface of the first arc-shaped channel plate is opposite to the outer circumferential surface of the second arc-shaped channel plate, and the temporary storage channel (43) is formed between the two. The transmission assembly (44) includes a plurality of drive rollers arranged at intervals along the temporary storage channel (43). Each drive roller is connected to the third motor for transmission. The drive roller is used to drive the sheet-like medium into the temporary storage channel (43) and wind it along the temporary storage channel (43).

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