Printing paper detection structure capable of being used in multiple scenes and novel printer

Abstract

The utility model discloses a printing paper detection structure capable of being used in multiple scenes and a novel printer, and the printing paper detection structure capable of being used in multiple scenes comprises a support body and a detection module. The side wall of the support body is provided with a detection module, a first boss, a second boss and a positioning boss. The first boss is provided with a mounting through hole facing the mounting plane; the mounting plane is provided with a mounting station; the mounting station is provided with a first fixing structure and / or a second fixing structure; the first fixing structure penetrates through the mounting through hole to fix the bracket body; the second fixing structure comprises a positioning groove and a first connecting plate which are arranged around the mounting station; the positioning boss is arranged in the positioning groove; one end of the first connecting plate is connected with the mounting plane, and the other end of the first connecting plate is provided with a first chamfering part towards the side wall of the mounting station; and the bracket body is clamped and fixed through the mounting plane, the positioning groove and the first chamfering part. The printing paper detection knot capable of being used in multiple scenes disclosed by the utility model can meet the installation requirements of more installation environments; the installation is simple and convenient, the use is convenient, and the connection structure is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, and in particular to a printing paper detection structure and a novel printer that can be used in multiple scenarios. Background Art

[0002] At present, the paper detection module of most thermal printers on the market is a fixed structure that fixes the paper detection module at a corresponding position of the printer body. The fixed structure of the paper detection module is single and cannot meet the installation requirements of more installation environments. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a printing paper detection structure and a novel printer that can be used in multiple scenarios. The printing paper detection structure that can be used in multiple scenarios includes a bracket body and a detection module, wherein:

[0004] The side wall of the bracket body is provided with a detection module, a first boss, a second boss, and a positioning boss;

[0005] The first boss is provided with a mounting through hole facing the mounting plane;

[0006] The installation plane is provided with an installation station; the installation station is provided with a first fixing structure and / or a second fixing structure;

[0007] The first fixing structure passes through the mounting through hole to fix the bracket body;

[0008] The second fixing structure includes a positioning groove and a first connecting plate arranged around the installation station;

[0009] The positioning boss is arranged in the positioning groove;

[0010] One end of the first connecting plate is connected to the installation plane, and the other end is provided with a first chamfered portion facing the side wall of the installation station;

[0011] The second boss can enter the lower position through the first chamfered portion; and the bracket body is fixed by clamping the mounting plane, the positioning groove, and the first chamfered portion.

[0012] Preferably, the detection module includes a mounting plate, a mounting block, a baffle, and a rotating shaft;

[0013] The side wall of the bracket body is provided with a second connecting plate; the upper end of the second connecting plate is provided with a second chamfered portion; the side wall of the bracket body below the second connecting plate is also provided with a rotating shaft fixing end;

[0014] The mounting block is provided with a U-shaped structure; the closed end of the mounting block is connected to the mounting plate; the U-shaped inner wall of the mounting block is provided with a sensor and a receiver opposite to each other;

[0015] The baffle is movably connected to the fixed end of the rotating shaft through the rotating shaft; the upper end of the baffle can enter between the sensor and the receiver; the lower end of the baffle protrudes to one side of the paper feeding direction;

[0016] When there is paper, the bottom of the baffle plate contacts the surface of the printing paper; the upper end of the baffle plate leaves the position between the sensor and the receiver;

[0017] When there is no paper, the lower end of the baffle rotates along the rotating shaft under the action of gravity, and the upper end of the baffle is located between the sensor and the receiver.

[0018] Preferably, the baffle is provided with a torsion spring.

[0019] Preferably, a first notch is provided on the side wall of the baffle; and a torsion leg of the torsion spring is clamped in the first notch.

[0020] Preferably, the bracket body located on one side of the mounting through hole is provided with a second notch.

[0021] Preferably, a third notch is provided at the bottom of the fixed end of the rotating shaft.

[0022] Preferably, the bracket body is located at a fourth notch on one side of the mounting plate.

[0023] Preferably, the second notch 17 and the fourth notch 19 are arranged alternately.

[0024] The utility model also provides a new type of printer, which adopts any of the printing paper detection structures described above that can be used in multiple scenarios; it includes a printer body; the printer body is provided with an installation space for installing the printing paper detection structure that can be used in multiple scenarios; the installation space is provided with the first fixing structure and / or the second fixing structure; the first fixing structure, the second fixing structure and the bracket body are detachably connected.

[0025] Preferably, the outer wall of the printer body is provided with a side panel; the side panel is detachably connected to the printer body; the side panel is provided with the first fixing structure and / or the second fixing structure; the first fixing structure and the second fixing structure are detachably connected to the bracket body.

[0026] The printing paper detection structure provided by the utility model can be used in multiple scenarios. By combining the first boss, the installation through hole, the second boss, the positioning boss, etc. set on the bracket body with the first fixing structure and the second fixing structure, the fixing structure with or without a paper detection module is enriched, and the installation requirements of more installation environments can be met. In addition, compared with some existing fixing structures with complicated installation steps, the two connection fixing structures provided in this embodiment simplify the installation operation process, are simple and convenient to install, easy to use, and have a stable connection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A three-dimensional diagram of a printing paper detection structure that can be used in multiple scenarios according to an embodiment of the utility model;

[0028] Figure 2 for Figure 1 Another perspective of the picture;

[0029] Figure 3 An exploded view of the printed paper detection structure that can be used in multiple scenarios;

[0030] Figure 4 A diagram showing the bracket body being fixed and installed by a first fixing structure;

[0031] Figure 5 is an exploded view of the bracket body and the second fixing structure;

[0032] Figure 6 A schematic diagram of a second fixing structure for the printer body;

[0033] Figure 7 This is an exploded view of the printer body and side panels;

[0034] Among them: 10, bracket body; 11, first boss; 12, mounting through hole; 13, second boss; 14, positioning boss; 15, second connecting plate; 151, second chamfered portion; 16, shaft fixing end; 17, second notch; 18, third notch; 19, fourth notch; 20, detection module; 21, mounting plate; 22, mounting block; 23, baffle; 231, first notch; 24, shaft; 25, sensor; 26, torsion spring; 30, mounting plane; 31, mounting station; 32, first fixed structure; 33, second fixed structure; 331, positioning groove; 332, first connecting plate; 3321, first chamfered portion; 40, printer body; 41, mounting space; 42, side panel. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments. However, the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments are conventional methods unless otherwise specified. The materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The present invention provides a printing paper detection structure and a novel printer that can be used in multiple scenarios. The printing paper detection structure that can be used in multiple scenarios includes a support body 10 and a detection module 20, wherein:

[0039] The side wall of the bracket body 10 is provided with a detection module 20, a first boss 11, a second boss 13, and a positioning boss 14;

[0040] The first boss 11 is provided with a mounting through hole 12 facing the mounting plane 30;

[0041] The installation plane 30 is provided with an installation station 31; the installation station 31 is provided with a first fixing structure 32 and / or a second fixing structure 33;

[0042] The first fixing structure 32 passes through the mounting through hole 12 to fix the bracket body 10;

[0043] The second fixing structure 33 includes a positioning groove 331 and a first connecting plate 332 arranged around the installation station 31;

[0044] The positioning boss 14 is disposed in the positioning groove 331;

[0045] One end of the first connecting plate 332 is connected to the installation plane 30, and the other end is provided with a first chamfered portion 3321 facing the side wall of the installation station 31;

[0046] The second boss 13 can enter its lower position through the first chamfered portion 3321 ; the bracket body 10 is fixed by clamping the mounting plane 30 , the positioning groove 331 , and the first chamfered portion 3321 .

[0047] When implementing it, Figure 1-Figure 5 As shown, the printing paper detection structure that can be used in multiple scenarios includes a support body 10 and a detection module 20, wherein:

[0048] The side wall of the bracket body 10 is provided with a detection module 20, a first boss 11, a second boss 13, and a positioning boss 14; the first boss 11 and the second boss 13 protrude horizontally toward the side of the bracket body 10; the lengths of the two positioning bosses 14 are set along the vertical direction of the bracket body 10;

[0049] The first boss 11 is provided with a mounting through hole 12 (such as Figure 2 shown);

[0050] like Figure 4 , Figure 5 As shown, the installation plane 30 is provided with an installation station 31; the installation station 31 is provided with a first fixing structure 32 and / or a second fixing structure 33; the first fixing structure 32 is a bolt or the like;

[0051] The first fixing structure 32 passes through the mounting through hole 12 to fix the bracket body 10 on the mounting station 31;

[0052] The second fixing structure 33 includes two oppositely disposed positioning grooves 331 and two first connecting plates 332 (such as Figure 5 The upper end of the positioning groove 331 is open;

[0053] The positioning boss 14 is disposed in the positioning groove 331;

[0054] One end of the first connecting plate 332 is connected to the installation plane 30, and the other end is provided with a first chamfered portion 3321 facing the side wall of the installation station 31; the first connecting plate 332 is deformable;

[0055] The second boss 13 can enter its lower position through the first chamfered portion 3321 ; the bracket body 10 is fixed by clamping the mounting plane 30 , the positioning groove 331 , and the first chamfered portion 3321 .

[0056] like Figure 4As shown, when installing and fixing through the first fixing structure 32, the first fixing structure 32 is a fastener such as a bolt; a through hole or a threaded hole (not marked in the figure) is provided at the position corresponding to the installation through hole 12 of the installation station 31; the fastener passes through the installation through hole 12 and the corresponding through hole on the installation station 31 in sequence and is connected to the nut, or the fastener passes through the installation through hole 12 and is threadedly connected to the threaded hole on the installation station 31, thereby realizing the installation and fixing of the entire printing paper detection structure that can be used in multiple scenarios, and the installation is simple and convenient, and the connection is stable. When disassembling, just remove the bolts, which is convenient to disassemble.

[0057] like Figure 5 As shown, when installing and fixing through the second fixing structure 33, align the positioning boss 14 with the upper open end of the positioning groove 331, and then move the bracket body 10 down along the positioning groove 331. When the second boss 13 abuts against the first chamfered portion 3321 and continues to move down, the first connecting plate 332 is deformed, so that the second boss 13 passes through the first chamfered portion 3321 and enters the lower position of the first chamfered portion 3321, and the first chamfered portion 3321 is reset; the bracket body 10 is fixed by the clamping structure formed by the mounting plane 30, the positioning groove 331, and the first chamfered portion 3321. The installation is simple and convenient, and the connection is stable. When disassembling, the first chamfered portion 3321 is moved to deform the first connecting plate 332, and the entire printing paper detection structure that can be used in multiple scenarios can be taken out, which is convenient to disassemble.

[0058] The printing paper detection structure provided by the embodiment of the utility model can be used in multiple scenarios. By combining the first boss 11, the installation through hole 12, the second boss 13, the positioning boss 14, etc. provided on the bracket body 10 with the first fixing structure 32 and the second fixing structure 33, the fixing structure with or without a paper detection module is enriched, and the installation requirements of more installation environments can be met. In addition, compared with some existing fixing structures with complicated installation steps, the two connection fixing structures provided in this embodiment simplify the installation operation process, are simple and convenient to install, easy to use, and have a stable connection structure.

[0059] Furthermore, the detection module 20 includes a mounting plate 21, a mounting block 22, a baffle 23, and a rotating shaft 24;

[0060] The side wall of the bracket body 10 is provided with a second connecting plate 15; the upper end of the second connecting plate 15 is provided with a second chamfered portion 151; the side wall of the bracket body 10 below the second connecting plate 15 is also provided with a rotating shaft fixing end 16;

[0061] The mounting block 22 has a U-shaped structure; the closed end of the mounting block 22 is connected to the mounting plate 21; the U-shaped inner wall of the mounting block 22 is provided with a sensor 25 and a receiver;

[0062] The baffle 23 is movably connected to the fixed end 16 of the rotating shaft via the rotating shaft 24; the upper end of the baffle 23 can enter between the sensor 25 and the receiver; the lower end of the baffle 23 protrudes toward one side of the paper feeding direction;

[0063] When there is paper, the bottom of the baffle 23 contacts the surface of the printing paper; the upper end of the baffle 23 leaves the position between the sensor 25 and the receiver;

[0064] When there is no paper, the lower end of the baffle 23 rotates along the rotating shaft 24 under the action of gravity, and the upper end of the baffle 23 is located between the sensor 25 and the receiver.

[0065] When implementing it, Figure 3 As shown, the detection module 20 includes a mounting plate 21, a mounting block 22, a baffle 23, and a rotating shaft 24;

[0066] The side wall of the bracket body 10 is provided with a second connecting plate 15; the upper end of the second connecting plate 15 is provided with a second chamfered portion 151; the side wall of the bracket body 10 below the second connecting plate 15 is also provided with two oppositely arranged rotating shaft fixing ends 16;

[0067] The mounting block 22 is provided with a U-shaped structure; the closed end of the mounting block 22 is connected to the mounting plate 21; the U-shaped inner wall of the mounting block 22 is provided with a sensor 25 and a receiver; the sensor 25 and the receiver can adopt the existing optical coupling sensor structure;

[0068] The baffle 23 is provided with a rotating shaft 24 which passes through horizontally; the rotating shaft 24 is rotatably connected to the rotating shaft fixed end 16; the upper end of the baffle 23 can enter between the sensor 25 and the receiver; the lower end of the baffle 23 protrudes toward one side of the paper feeding direction;

[0069] When there is paper, the bottom of the baffle 23 contacts the surface of the printing paper; under the support of the printing paper, the upper end of the baffle 23 leaves the position between the sensor 25 and the receiver; the optical coupler signal between the sensor 25 and the receiver is normal;

[0070] When there is no paper, the lower end of the baffle 23 protrudes toward the paper feeding direction on one side. When there is no printing paper supported by the lower end of the baffle 23, the lower end of the baffle 23 rotates along the rotating shaft 24 under the action of gravity, and the upper end of the baffle 23 enters the position between the sensor 25 and the receiver under the drive of the lower end of the baffle 23, and the optocoupler signal between the sensor 25 and the receiver is disconnected.

[0071] Compared with the structure in which the sensor 25 and the receiver are respectively arranged on both sides of the printing paper, the detection module 20 provided by the embodiment of the utility model can be suitable for the installation environment in which the detection module 20 is installed outside the printer body through the structure in which the U-shaped structure of the mounting block 22 is combined with the baffle 23. At the same time, it can also prevent strong light and reduce the influence of strong light on the detection structure.

[0072] Furthermore, the baffle 23 is provided with a torsion spring 26 .

[0073] When implementing it, Figure 1 As shown, it also includes a torsion spring 26, the body of which passes through the rotating shaft 24; one pin of the torsion spring 26 is connected to the baffle 23, and the other pin is clamped to the rotating shaft fixed end 16. When there is no paper, the torsion spring 26 assists the baffle 23 to reset to the position between the sensor 25 and the receiver to improve the detection accuracy.

[0074] Furthermore, a first notch 231 is formed on the side wall of the baffle 23 ; a torsion leg of the torsion spring 26 is clamped in the first notch 231 .

[0075] When implementing it, Figure 3 As shown, a first notch 231 is provided on the side wall of the baffle 23; a torsion leg of the torsion spring 26 is clamped in the first notch 231; the torsion leg of the torsion spring 26 is fixed by the first notch 231 to avoid the problem of inaccurate reset caused by displacement of the torsion spring 26.

[0076] Furthermore, the bracket body 10 located at one side of the mounting through hole 12 is provided with a second notch 17 .

[0077] When implementing it, Figure 1-Figure 3 As shown, the bracket body 10 is provided with a second notch 17 at one side of the mounting through hole 12. The second notch 17 provides more space for the installation of the first fixing structure 32, and is convenient for installation as the first fixing structure 32.

[0078] Furthermore, a third notch 18 is provided at the bottom of the rotating shaft fixing end 16 .

[0079] When implementing it, Figure 3 As shown, at least one shaft fixing end 16 has a third notch 18 at the bottom; the width of the third notch 18 is smaller than the diameter of the connection between the shaft 24 and the shaft fixing end 16; the end of the shaft 24 can pass through the third notch 18 and enter the shaft fixing end 16 for fixing.

[0080] During installation, a third notch 18 is provided at the bottom of the two oppositely arranged rotating shaft fixed ends 16; the two ends of the rotating shaft 24 are respectively aligned with the third notch 18, and then the rotating shaft 24 is pressed toward the third notch 18, and the position where the rotating shaft fixed end 16 forms the third notch 18 is deformed to allow the rotating shaft 24 to pass through, and then the position where the rotating shaft fixed end 16 forms the third notch 18 is reset, thereby fixing the rotating shaft 24.

[0081] Another installation method is that one of the two oppositely disposed rotating shaft fixing ends 16 has a third notch 18 at the bottom; one end of the rotating shaft 24 is first inserted into the rotating shaft fixing end 16 without the third notch 18, and then the other end of the rotating shaft 24 is pressed toward the rotating shaft fixing end 16 with the third notch 18, thereby fixing the rotating shaft 24.

[0082] Furthermore, the bracket body 10 is located at a fourth notch 19 on one side of the mounting plate 21 .

[0083] When implementing it, Figure 2 As shown, the bracket body 10 is located at a fourth notch 19 on one side of the mounting plate 21 , and the fourth notch 19 is used to place the connecting wires, circuit structures, etc. of the sensor 25 and the receiver.

[0084] Furthermore, the second notches 17 and the fourth notches 19 are arranged alternately.

[0085] When implementing it, Figure 3 As shown, the two second notches 17 are staggered on both sides of the fourth notch 19. The staggered structural design can improve space utilization, reduce the volume of the bracket body 10, and facilitate installation in an installation environment with high requirements for installation space (such as a relatively narrow space).

[0086] The utility model also provides a new type of printer, which adopts any of the printing paper detection structures that can be used in multiple scenarios as described above; it includes a printer body 40; the printer body 40 is provided with an installation space 41 for installing the printing paper detection structure that can be used in multiple scenarios; the installation space 41 is provided with the first fixing structure 32 and / or the second fixing structure 33; the first fixing structure 32, the second fixing structure 33 are detachably connected to the bracket body 10.

[0087] When implementing it, Figure 6 As shown, the new printer adopts the printing paper detection structure that can be used in multiple scenarios as described above; it includes a printer body 40; the printer body 40 is provided with an installation space 41 for installing the printing paper detection structure that can be used in multiple scenarios; the installation space 41 is provided with an installation station 31; the installation station 31 is provided with a first fixing structure 32; the first fixing structure 32 is detachably connected to the bracket body 10; the first fixing structure 32 can be detachably connected by a bolt connection structure.

[0088] During installation, the installation station 31 is provided with an elongated through hole (not marked in the figure) for the baffle plate 23 to move; the bottom of the installation station 31 is a paper feeding channel.

[0089] Furthermore, the outer wall of the printer body 40 is provided with a side panel 42; the side panel 42 is detachably connected to the printer body 40; the side panel 42 is provided with the first fixing structure 32 and / or the second fixing structure 33; the first fixing structure 32 and the second fixing structure 33 are detachably connected to the bracket body 10.

[0090] When implementing it, Figure 7As shown, the printer body 40 is provided with an installation space 41 for installing a printing paper detection structure that can be used in multiple scenarios; a first fixing structure 32 is provided in the installation space 41; a side panel 42 is provided on the outer wall of the printer body 40; the side panel 42 is detachably connected to the printer body 40; the side panel 42 is provided with a second fixing structure 33; the second fixing structure 33 is detachably connected to the bracket body 10.

[0091] During installation, the user can install the printing paper detection structure that can be used in multiple scenarios inside the printer body 40 or on the side panel 42 according to the actual usage scenario.

[0092] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A printing paper detection structure that can be used in multiple scenarios, characterized by: It comprises a support body (10) and a detection module (20), wherein: The side wall of the bracket body (10) is provided with a detection module (20), a first boss (11), a second boss (13), and a positioning boss (14); The first boss (11) is provided with a mounting through hole (12) facing the mounting plane (30); The installation plane (30) is provided with an installation station (31); the installation station (31) is provided with a first fixing structure (32) and / or a second fixing structure (33); The first fixing structure (32) passes through the mounting through hole (12) to fix the bracket body (10); The second fixing structure (33) comprises a positioning groove (331) and a first connecting plate (332) arranged around the installation station (31); The positioning boss (14) is arranged in the positioning groove (331); One end of the first connecting plate (332) is connected to the installation plane (30), and the other end is provided with a first chamfered portion (3321) facing the side wall of the installation station (31); The second boss (13) can enter its lower position through the first chamfered portion (3321); the bracket body (10) is fixed by clamping the mounting plane (30), the positioning groove (331), and the first chamfered portion (3321).

2. The printing paper detection structure that can be used in multiple scenarios according to claim 1 is characterized in that: The detection module (20) comprises a mounting plate (21), a mounting block (22), a baffle (23), and a rotating shaft (24); The side wall of the bracket body (10) is provided with a second connecting plate (15); the upper end of the second connecting plate (15) is provided with a second chamfered portion (151); the side wall of the bracket body (10) below the second connecting plate (15) is also provided with a rotating shaft fixing end (16); The mounting block (22) is provided with a U-shaped structure; the closed end of the mounting block (22) is connected to the mounting plate (21); the U-shaped inner wall of the mounting block (22) is provided with a sensor (25) and a receiver opposite to each other; The baffle (23) is movably connected to the fixed end (16) of the rotating shaft via the rotating shaft (24); the upper end of the baffle (23) can enter between the sensor (25) and the receiver; the lower end of the baffle (23) protrudes toward one side of the paper feeding direction; When there is paper, the bottom of the baffle (23) contacts the surface of the printing paper; the upper end of the baffle (23) leaves the position between the sensor (25) and the receiver; When there is no paper, the lower end of the baffle (23) rotates along the rotating shaft (24) under the action of gravity, and the upper end of the baffle (23) is located between the sensor (25) and the receiver.

3. The printing paper detection structure that can be used in multiple scenarios according to claim 2 is characterized in that: The baffle (23) is provided with a torsion spring (26).

4. The printing paper detection structure applicable to multiple scenarios according to claim 3, characterized in that: A first notch (231) is provided on the side wall of the baffle (23); a torsion leg of the torsion spring (26) is clamped in the first notch (231).

5. The printing paper detection structure that can be used in multiple scenarios according to claim 4 is characterized in that: The bracket body (10) located on one side of the mounting through hole (12) is provided with a second notch (17).

6. The printing paper detection structure applicable to multiple scenarios according to claim 5, characterized in that: The bracket body (10) is located at a fourth notch (19) on one side of the mounting plate (21).

7. The printing paper detection structure applicable to multiple scenarios according to claim 6, characterized in that: The second notches (17) and the fourth notches (19) are arranged alternately.

8. The printing paper detection structure applicable to multiple scenarios according to claim 2, characterized in that: A third notch (18) is provided at the bottom of the rotating shaft fixed end (16).

9. A new type of printer, characterized in that: A printing paper detection structure that can be used in multiple scenarios as described in any one of claims 1 to 8 is adopted; it includes a printer body (40); an installation space (41) for installing the printing paper detection structure that can be used in multiple scenarios is provided in the printer body (40); the first fixing structure (32) and / or the second fixing structure (33) are provided in the installation space (41); the first fixing structure (32) and the second fixing structure (33) are detachably connected to the bracket body (10).

10. The novel printer according to claim 9 is characterized in that: The outer wall of the printer body (40) is provided with a side panel (42); the side panel (42) is detachably connected to the printer body (40); the side panel (42) is provided with the first fixing structure (32) and / or the second fixing structure (33); the first fixing structure (32) and the second fixing structure (33) are detachably connected to the bracket body (10).

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