A paper hopper and printer

Abstract

The application belongs to the technical field of printers and discloses a paper warehouse and a printer. The paper warehouse has two first positioning assemblies and two second positioning assemblies. One first positioning assembly is movably connected to a frame along a first direction, and the other first positioning assembly is movably connected to the frame along a second direction. One second positioning assembly is connected to the frame and is arranged opposite to one first positioning assembly along the first direction, and the other second positioning assembly is connected to the frame and is arranged opposite to the other first positioning assembly along the second direction. A supporting assembly is movably connected to the frame along a third direction. The first positioning assembly, the second positioning assembly and the supporting assembly form a paper placing space. The paper can be positioned before entering a paper path to avoid paper jamming, misprinting or missing printing.

Description

Technical Field

[0001] This invention relates to the field of printer technology, and more particularly to a paper magazine and printer. Background Technology

[0002] In the prior art, when a printer is printing, paper can be placed in the paper tray, and the paper tray continuously supplies paper to the printer, enabling the printer's print head to print continuously.

[0003] However, the paper is not in a fixed position before entering the paper path. It is easy for the paper to jam when entering the paper path, and it is easy for it to deviate from the print head when it reaches the print head, resulting in misprints or omissions.

[0004] Therefore, there is an urgent need for a paper storage and printer to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a paper magazine and printer that can position the paper before it enters the paper path.

[0006] To achieve this objective, the present invention adopts the following technical solution: In a first aspect, a paper storage unit is provided, the paper storage unit comprising: frame; Two first positioning components, one of which is at least partially movably connected to the frame along a first direction, and the other of which is at least partially movably connected to the frame along a second direction; Two second positioning components, one second positioning component is connected to the frame and is disposed opposite to the first positioning component along the first direction, and the other second positioning component is connected to the frame and is disposed opposite to the other first positioning component along the second direction; Support assembly, which is movably connected to the frame in a third direction; The first positioning component, the second positioning component, and the support component are arranged to form a paper-laying space; Wherein, the first direction, the second direction, and the third direction are perpendicular to each other.

[0007] In some embodiments, the first positioning component includes an optical axis and a positioning element, the positioning element being slidably connected to the optical axis, and the optical axis being mountable on the frame.

[0008] In some embodiments, the first positioning component further includes a linear bearing, which is fixedly connected to the positioning member, and the optical axis is inserted into the bearing hole of the linear bearing.

[0009] In some embodiments, the first positioning component includes at least two optical axes, the axes of which are parallel, and the number of positioning elements is the same as that of the optical axes and they are arranged in a one-to-one correspondence.

[0010] In some embodiments, the paper cartridge further includes a locking component for locking the first positioning component to the frame.

[0011] In some embodiments, the locking assembly includes a snap-fit ​​member, a first elastic member, and a rotating shaft. The snap-fit ​​member and the positioning member are rotatably connected to the rotating shaft about the central axis of the rotating shaft. The snap-fit ​​member has a snap-fit ​​hole that fits with the optical shaft with a clearance. One end of the first elastic member is connected to the snap-fit ​​member, and the other end is connected to the positioning member. The inner wall of the snap-fit ​​hole presses against the optical shaft. The first elastic member is in a compressed state or a free state.

[0012] In some embodiments, the support assembly includes a support member, a lead screw, and a drive member. The support member has a threaded hole that can be threadedly connected to the lead screw. The drive member is fixedly connected to the frame, and the output end of the drive member is connected to one end of the lead screw and configured to drive the lead screw to rotate.

[0013] In some embodiments, the paper library further includes a paper supply detection assembly, which includes a mounting frame, a paper pressing element, and a detector. The mounting frame is mounted on the first positioning assembly and located on the side opposite to the support assembly. The paper pressing element is movably connected to the mounting frame along the third direction and can move along the third direction to the side opposite to the support assembly to trigger the detector.

[0014] In some embodiments, the paper feeding detection assembly further includes a second elastic member, which extends along the third direction and is connected at one end to the paper pressing member and at the other end to the mounting frame.

[0015] In a second aspect, a printer is provided, including a body and the aforementioned paper cartridge, wherein the frame is mounted on the body.

[0016] The beneficial effects of this invention are: The paper cartridge provided by this invention forms a paper-feeding space by means of a first positioning component, a second positioning component, and a support member. When the paper cartridge needs to feed paper to the printer's paper path, the operator can place a stack of paper into the paper-feeding space so that the paper cartridge can feed paper to the paper path. The support member supports the paper stack in a third-direction upward direction. When a single sheet of paper furthest from the support member is fed into the printer's paper path, the support member can move along this third-direction direction, causing the paper stack to move towards the side away from the support member in the third-direction upward direction, thus enabling continuous paper feeding. A first positioning component is movably connected to the frame in a first direction, and a second positioning component is connected to the frame and positioned opposite to the first positioning component in the first direction. The first positioning component can move along the first direction and cooperate with the second positioning component to clamp the side wall of the paper stack in the first direction, thereby determining the spatial position of the paper stack in the first direction. Another first positioning component is movably connected to the frame in the second direction, and another second positioning component is connected to the frame and is arranged opposite to the other first positioning component in the second direction. Thus, the first positioning component can move along the second direction and cooperate with the second positioning component to clamp the other side wall of the paper stack in the second direction, thereby determining the spatial position of the paper stack in the second direction. In this way, the spatial positions of the paper stack in the first and second directions are simultaneously positioned. Before the paper enters the paper path, the paper can be positioned to avoid paper jams, misprints, or omissions.

[0017] The printer provided by this invention includes a body and a paper cartridge. The frame is installed on the body, so that the paper can be positioned before it enters the paper path from the paper cartridge, thus avoiding jamming, misprinting and missing printing. Attached Figure Description

[0018] Figure 1 This is a first-view structural schematic diagram of the paper warehouse provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the first positioning component provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the paper warehouse structure after removing part of the shell, provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the paper feeding detection component provided in an embodiment of the present invention.

[0019] In the picture: 100. Paper storage space; 1. Rack; 2. First positioning component; 21. Optical axis; 22. Positioning element; 23. Linear bearing; 231. Bearing hole; 3. Second positioning component; 4. Support assembly; 41. Support component; 411. Threaded hole; 42. Lead screw; 43. Drive component; 44. Synchronous pulley; 45. Synchronous belt; 5. Locking assembly; 51. Snap-fit ​​component; 52. First elastic element; 53. Rotating shaft; 511. Snap-fit ​​hole; 6. Paper feeding detection assembly; 61. Mounting frame; 62. Paper pressing component; 63. Detector; 64. Second elastic element. Detailed Implementation

[0020] Embodiments of the present invention 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 components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 A first-view structural schematic diagram of the paper warehouse provided in an embodiment of the present invention is shown. Figure 1As shown, the present invention provides a paper storage unit. The paper storage unit includes a frame 1, two first positioning components 2, and two second positioning components 3. One first positioning component 2 is at least partially movably connected to the frame 1 along a first direction, and the other first positioning component 2 is at least partially movably connected to the frame 1 along a second direction. One second positioning component 3 is connected to the frame 1 and is disposed opposite to one first positioning component 2 along the first direction, and the other second positioning component 3 is connected to the frame 1 and is disposed opposite to the other first positioning component 2 along the second direction. A support component 4 is movably connected to the frame 1 along a third direction. The first positioning components 2, second positioning components 3, and support component 4 enclose a paper placement space 100. The first direction, second direction, and third direction are perpendicular to each other.

[0025] The paper cartridge provided by this invention forms a paper-feeding space 100 by means of a first positioning component 2, a second positioning component 3, and a support member 41. When the paper cartridge needs to feed paper to the printer's paper path, the operator can place a stack of paper into the paper-feeding space 100 so that the paper cartridge can feed paper to the paper path. The support member 4 supports the paper stack in a third-direction upward. When a single sheet of paper furthest from the support member 4 is fed to the printer's paper path, the support member 4 can move along a third-direction direction, thereby moving the paper stack in a third-direction upward direction away from the support member 4, thus enabling continuous paper feeding. A first positioning component 2 is movably connected to the frame 1 in a first direction, and a second positioning component 3 is connected to the frame 1 and is opposite to the first positioning component 2 in the first direction. The first positioning component 2 is configured to move along the first direction and cooperate with the second positioning component 3 to clamp the side wall of the paper stack in the first direction, thus determining the spatial position of the paper stack in the first direction. Another first positioning component 2 is movably connected to the frame 1 along the second direction, and another second positioning component 3 is connected to the frame 1 and is positioned opposite to the other first positioning component 2 along the second direction. Thus, the first positioning component 2 can move along the second direction and cooperate with the second positioning component 3 to clamp the other side wall of the paper stack in the second direction, thus determining the spatial position of the paper stack in the second direction. In this way, the spatial positions of the paper stack in the first and second directions are simultaneously positioned. Before the paper enters the paper path, the paper can be positioned to avoid paper jams, misprints, or omissions.

[0026] It should be noted that the specific directions of the first direction, the second direction, and the third direction of the present invention are not limited here. Corresponding to different placement postures of the paper cartridge, the paper cartridge can be installed on the printer body more flexibly. Those skilled in the art can reasonably set the specific directions of the first direction, the second direction, and the third direction according to the actual printing needs, as long as the first direction, the second direction, and the third direction are perpendicular to each other, which will not be elaborated here.

[0027] It should be noted that the paper stack in this invention is a stack of paper. After the paper stack is placed in the paper placement space 100, the support component 4 supports the bottom wall of the paper stack. The first positioning component 2 and the second positioning component 3 can simultaneously clamp the two pairs of side walls of the paper stack in the first and second directions, thereby positioning the spatial position of the paper stack in the first and second directions. After the paper stack is positioned, the paper stack faces the paper path of the printer. At the same time, the first positioning component 2 and the second positioning component 3 clamp the side walls of the paper stack in the first and second directions, without affecting the movement of the support component 4 in the third direction, thus allowing the paper stack to move in the third direction.

[0028] It should be noted that at the end opposite to the support component 4, which is the paper outlet of the paper magazine, a paper output device (not shown in the figure) can be set to remove the single sheet of paper closest to the paper outlet from the paper magazine and transport it to the paper path of the printer. The paper output device is not the technical content to be protected by this invention. Its specific structure can be reasonably set by those skilled in the art according to actual needs, as long as it can remove the single sheet of paper closest to the paper outlet from the paper magazine. It will not be described in detail here.

[0029] Figure 2 A schematic diagram of the structure of the first positioning component 2 provided in an embodiment of the present invention is shown. Figure 1 and Figure 2 As shown. The first positioning component 2 includes an optical axis 21 and a positioning element 22. The positioning element 22 is slidably connected to the optical axis 21. The optical axis 21 can be installed on the frame 1 to guide the movement direction of the positioning element 22 and prevent the positioning element 22 from moving radially along the optical axis 21 when clamping the side wall of the paper stack, which would result in the inability to clamp the paper stack and have an adverse effect on the positioning of the paper stack.

[0030] It should be noted that in this invention, the optical axis 21 of one first positioning component 2 is mounted on the frame 1 along the first direction, and the optical axis 21 of the other first positioning component 2 is mounted on the frame 1 along the second direction, so that the positioning member 22 can move along the first direction or the second direction and cooperate with the second positioning component 3 to clamp the positioning paper stack.

[0031] Preferably, the first positioning component 2 further includes a linear bearing 23, which is fixedly connected to the positioning member 22. The optical axis 21 is inserted into the bearing hole 231 of the linear bearing 23, thereby preventing the positioning member 22 from getting stuck when sliding relative to the optical axis 21 and improving the ease of operation of the first positioning component 2.

[0032] Preferably, the first positioning component 2 includes at least two optical axes 21, the axial directions of the at least two optical axes 21 are parallel, and the number of positioning elements 22 is the same as that of the optical axes 21 and they are arranged in a one-to-one correspondence. This can increase the contact area between the first positioning component 2 and the side wall of the paper stack, thereby improving the stability of the first positioning component 2 and the second positioning component 3 in clamping and positioning, and preventing the paper stack from moving radially in the third direction when the support component 4 supports the paper stack to move in the third direction.

[0033] It should be noted that the number of optical axis 21 and positioning element 22 of the first positioning component 2 in this invention is not limited, and can be two, three or four. Those skilled in the art can set them reasonably according to actual needs, and will not elaborate further here.

[0034] Continue as Figure 1 and Figure 2 As shown, the paper warehouse also includes a locking component 5 for locking the first positioning component 2 and the frame 1. After the first positioning component 2 and the second positioning component 3 cooperate to clamp and position the paper stack, the locking component 5 can be used to lock the first positioning component 2 and the frame 1, so as to prevent the first positioning component 2 from being displaced by vibration when the support component 4 moves along the third direction, thereby improving the reliability of the paper stack clamping and positioning.

[0035] Specifically, the locking assembly 5 includes a latching member 51, a first elastic member 52, and a rotating shaft 53. The latching member 51 and the positioning member 22 are rotatably connected to the rotating shaft 53 about its central axis. The latching member 51 has a latching hole 511 that fits with the optical shaft 21 with a clearance. One end of the first elastic member 52 is connected to the latching member 51, and the other end is connected to the positioning member 22. The inner wall of the latching hole 511 presses against the optical shaft 21. The first elastic member 52 is in a compressed state or a free state, so that when the positioning member 22 needs to move the side wall of the paper stack, the operator can press the latching member 51 to make it move. It rotates around the rotating shaft 53, compresses the first elastic element 52, and makes the inner wall of the snap-fit ​​hole 511 and the outer peripheral wall of the optical shaft 21 fit together, releasing the lock between the positioning element 22 and the optical shaft 21, so that the positioning element 22 can be locked relative to the optical shaft 21. After the paper stack is clamped and positioned, the operator no longer presses the snap-fit ​​element 51, so that the elastic potential energy of the first elastic element 52 is released, causing the snap-fit ​​element 51 to flip around the rotating shaft 53, and the inner wall of the snap-fit ​​hole 511 presses against the optical shaft 21 again, so that the positioning element 22 can no longer move relative to the optical shaft 21, locking the first positioning component 2 and the frame 1.

[0036] It should be noted that the specific type of the first elastic element 52 is not limited here. It can be a spring or a rubber block. Those skilled in the art can make reasonable selections according to actual needs, and will not be elaborated here.

[0037] Figure 3This diagram illustrates the structure of the paper warehouse provided in an embodiment of the present invention after removing a portion of the outer shell, from a second-view perspective. Figure 1 and Figure 3 As shown. The support assembly 4 includes a support member 41, a lead screw 42, and a drive member 43. The support member 41 has a threaded hole 411 that can be threadedly connected to the lead screw 42. The drive member 43 is fixedly connected to the frame 1. The output end of the drive member 43 is connected to one end of the lead screw 42 and is configured to drive the lead screw 42 to rotate. Thus, the drive member 43 can drive the lead screw 42 to rotate, thereby causing the support member 41 to move in a third direction. After the paper stack is placed on the support member 41, the paper stack moves along the third direction with the support member 41.

[0038] Preferably, the support assembly 4 further includes a timing pulley 44 and a timing belt 45. At least two lead screws 42 are spaced apart along a third direction. The timing belt 45 is installed at one end of the lead screw 42. The number of timing pulleys 44 is the same as that of the lead screws 42 and they are arranged in a one-to-one correspondence. All timing pulleys 44 are connected in series through the timing belt 45. The drive component 43 is connected to one of the timing pulleys 44, thereby increasing the number of lead screws 42 and improving the smoothness of the support component 41 moving along a third direction.

[0039] Figure 4 A schematic diagram of the paper feeding detection component 6 provided in an embodiment of the present invention is shown. Figure 1 and Figure 4 As shown, the paper warehouse also includes a paper supply detection component 6, which includes a mounting frame 61, a paper pressing component 62, and a detector 63. The mounting frame 61 is installed on the first positioning component 2 and located on the side away from the support component 4. The paper pressing component 62 is movably connected to the mounting frame 61 in the third direction. The paper pressing component 62 can move in the third direction towards the side away from the support component 4 to trigger the detector 63. Thus, after the paper stack is placed into the paper feeding space 100, the paper stack can push up the paper pressing component 62, causing the paper pressing component 62 to move in the third direction towards the side away from the support component 4 to trigger the detector 63. This reminds the staff that the height of the paper stack has been installed in place. The first positioning component 2 and the second positioning component 3 can be used to further clamp and position the paper stack to avoid the paper stack being too low, which would prevent the paper output device from taking the paper out of the paper warehouse and supplying it to the paper path.

[0040] It should be noted that the detector 63 can be a photoelectric switch, an infrared switch, a proximity switch, or a micro switch. Those skilled in the art can make reasonable selections according to the actual needs of paper supply in the paper warehouse, and will not be elaborated on here.

[0041] Preferably, the paper feeding detection component 6 further includes a second elastic member 64, which extends in the third direction and is connected at one end to the paper pressing member 62 and at the other end to the mounting frame 61, so that the paper pressing member 62 and the support component 4 cooperate to clamp the paper stack in the third direction, thereby further improving the positioning effect of the paper stack.

[0042] It should be noted that the specific type of the second elastic element 64 is not limited here. It can be a spring or a rubber block. Those skilled in the art can make a reasonable selection according to actual needs, and it will not be elaborated here.

[0043] The present invention also provides a printer, including a body and a paper cartridge, wherein a frame 1 is mounted on the body, so that the paper can be positioned before entering the paper path from the paper cartridge, thereby avoiding jamming, misprinting and missing printing.

[0044] The following provides a specific embodiment to illustrate the specific structure of the paper storage device. It should be understood that the following embodiment is not an exhaustive embodiment of the paper storage device provided by the present invention. Any reasonable and corresponding designs made by those skilled in the art based on the inventive concept of the present invention and in combination with actual application situations are all within the protection scope of the present invention.

[0045] Example This embodiment provides a paper storage unit. A first positioning component 2 is at least partially movably connected to a frame 1 along a first direction, and another first positioning component 2 is at least partially movably connected to the frame 1 along a second direction. A second positioning component 3 is connected to the frame 1 and is disposed opposite to one of the first positioning components 2 along the first direction, and another second positioning component 3 is connected to the frame 1 and is disposed opposite to the other first positioning component 2 along the second direction. The first positioning components 2, second positioning components 3, and support components 4 enclose a paper placement space 100. The first direction, second direction, and third direction are mutually perpendicular, with the third direction being vertical.

[0046] The first positioning component 2 includes an optical axis 21, a positioning element 22, and a linear bearing 23. The linear bearing 23 is fixedly connected to the positioning element 22, and the optical axis 21 is inserted into the bearing hole 231 of the linear bearing 23. The first positioning component 2 includes two optical axes 21, the two optical axes 21 are parallel in axis, and two positioning elements 22 are respectively set for the two optical axes 21.

[0047] The support assembly 4 includes a support member 41, a lead screw 42, and a drive member 43. The support member 41 has a threaded hole 411 that can be threadedly connected to the lead screw 42. The drive member 43 is connected to one end of the lead screw 42 and is configured to drive the lead screw 42 to rotate.

[0048] The locking assembly 5 includes a snap-fit ​​member 51, a first elastic member 52, and a rotating shaft 53. The snap-fit ​​member 51 and the positioning member 22 are rotatably connected to the rotating shaft 53 about the central axis of the rotating shaft 53. The snap-fit ​​member 51 has a snap-fit ​​hole 511 that is clearance-fitted with the optical shaft 21. One end of the first elastic member 52 is connected to the snap-fit ​​member 51, and the other end is connected to the positioning member 22. The inner wall of the snap-fit ​​hole 511 presses against the optical shaft 21. The first elastic member 52 is in a compressed state or a free state.

[0049] The paper storage unit also includes a paper supply detection assembly 6, which includes a mounting frame 61, a paper pressing component 62, and a detector 63. The mounting frame 61 is mounted on the first positioning assembly 2 and located on the side opposite to the support assembly 4. The paper pressing component 62 is movably connected to the mounting frame 61 in a third direction and can move in a third direction towards the side opposite to the support assembly 4 to trigger the detector 63. The paper supply detection assembly 6 also includes a second elastic element 64, which extends in a third direction and is connected at one end to the paper pressing component 62 and at the other end to the mounting frame 61.

[0050] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A paper warehouse, characterized in that, The paper warehouse includes: Rack (1); Two first positioning components (2), one of which is at least partially movably connected to the frame (1) along a first direction, and the other of which is at least partially movably connected to the frame (1) along a second direction; Two second positioning components (3), one second positioning component (3) is connected to the frame (1) and is disposed opposite to one first positioning component (2) along the first direction, and the other second positioning component (3) is connected to the frame (1) and is disposed opposite to the other first positioning component (2) along the second direction; Support component (4), which is movably connected to the frame (1) in a third direction; The first positioning component (2), the second positioning component (3) and the support component (4) are arranged to form a paper placement space (100). Wherein, the first direction, the second direction, and the third direction are perpendicular to each other.

2. The paper warehouse according to claim 1, characterized in that, The first positioning component (2) includes an optical axis (21) and a positioning element (22), the positioning element (22) being slidably connected to the optical axis (21), and the optical axis (21) being able to be mounted on the frame (1).

3. The paper warehouse according to claim 2, characterized in that, The first positioning component (2) further includes a linear bearing (23), which is fixedly connected to the positioning component (22), and the optical axis (21) is inserted into the bearing hole (231) of the linear bearing (23).

4. The paper warehouse according to claim 2, characterized in that, The first positioning component (2) includes at least two optical axes (21), the axial directions of the at least two optical axes (21) are parallel, and the number of positioning elements (22) is the same as that of the optical axes (21) and they are arranged in a one-to-one correspondence.

5. The paper warehouse according to claim 2, characterized in that, The paper warehouse also includes a locking component (5) for locking the first positioning component (2) to the frame (1).

6. The paper warehouse according to claim 5, characterized in that, The locking assembly (5) includes a snap-fit ​​member (51), a first elastic member (52), and a rotating shaft (53). The snap-fit ​​member (51) and the positioning member (22) are rotatably connected to the rotating shaft (53) with the central axis of the rotating shaft (53) as the pivot. The snap-fit ​​member (51) has a snap-fit ​​hole (511) that is clearance-fitted with the optical axis (21). One end of the first elastic member (52) is connected to the snap-fit ​​member (51), and the other end is connected to the positioning member (22). The inner wall of the snap-fit ​​hole (511) presses against the optical axis (21). The first elastic member (52) is in a compressed state or a free state.

7. The paper warehouse according to claim 1, characterized in that, The support assembly (4) includes a support member (41), a lead screw (42) and a drive member (43). The support member (41) has a threaded hole (411) that can be threadedly connected to the lead screw (42). The drive member (43) is fixedly connected to the frame (1). The output end of the drive member (43) is connected to one end of the lead screw (42) and is configured to drive the lead screw (42) to rotate.

8. The paper warehouse according to any one of claims 1-7, characterized in that, The paper library also includes a paper supply detection component (6), which includes a mounting frame (61), a paper pressing component (62), and a detector (63). The mounting frame (61) is mounted on the first positioning component (2) and located on the side away from the support component (4). The paper pressing component (62) is movably connected to the mounting frame (61) along the third direction. The paper pressing component (62) can move along the third direction to the side away from the support component (4) to trigger the detector (63).

9. The paper warehouse according to claim 8, characterized in that, The paper feeding detection component (6) also includes a second elastic element (64), so the second elastic element (64) extends along the third direction and is connected at one end to the paper pressing component (62) and at the other end to the mounting frame (61).

10. A printer, characterized in that, Includes a machine body and a paper press as described in any one of claims 1-9, wherein the frame (1) is mounted on the machine body.

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