A printer compatible with front-side and back-side thermally coated printing paper

Abstract

The present invention provides a printer compatible with front-side and back-side thermal-coated printing paper, comprising: a main body; a rubber roller; a print head assembly; a movable cutter assembly; a fixed cutter; a paper discharge mechanism; a first guide mechanism and a second guide mechanism; when the paper is back-side thermal-coated printing paper, the first guide mechanism is at least partially used to push the paper away, so that a first distance is formed between the outermost vertical line of the first guide mechanism and the outermost vertical line of the movable cutter assembly, so that the paper enters the first distance and thus prevents the paper from entering the interior of the movable cutter assembly; when the paper is front-side thermal-coated printing paper, the second guide mechanism is at least partially used to push the paper away, so that a second distance is formed between the outermost vertical line of the fixed cutter and the outermost vertical line of the paper discharge mechanism, so that the paper enters the second distance and thus prevents the paper from entering the gap between the fixed cutter and the paper discharge mechanism. At the same time, the printer is compatible with printing with front-side and back-side thermal-coated printing paper, enriches the use scenarios of the printer, can realize multi-purpose use of one machine, and improves the use rate and efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of printers, and in particular relates to a printer compatible with front-side and back-side thermal-coated printing papers. Background Art

[0002] A printer is an electronic device used to convert data from a computer or other digital device into visible text or images, usually output on paper. Printers are common office automation devices in offices and homes, used to print documents, reports, pictures, and more.

[0003] Thermal printers are commonly used at supermarket checkout counters, restaurants, bank ATMs, lockers, and queuing machines to print transaction receipts or receipts. A printer typically consists of a housing or cabinet housing a thermal printer. Existing printers consist of a paper feed assembly, a printer assembly, a rubber roller assembly, a paper cutter assembly, and a paper output assembly. Currently, thermal printing paper on the market has either a front or back thermal coating. Because the paper is rolled, the problem of uneven paper becomes increasingly serious as it nears the end of its life. This can easily lead to the paper running into the movable cutter assembly (when the thermal coating is on the back) or blocking other components on the fixed cutter assembly (when the thermal coating is on the front). Therefore, the smoothness of the paper output path between the printer and cutter assemblies directly impacts the overall printer functionality, user cost, user experience, and efficiency.

[0004] Furthermore, current printers can only be used to print on the front or back of thermally coated printing paper, and are not compatible. Summary of the Invention

[0005] The object of the present invention is to provide a printer that is compatible with both front-side and back-side thermally coated printing papers, so as to solve the problems raised in the above-mentioned background technology.

[0006] In view of this, the present invention provides a printer compatible with both front-side and back-side thermal coated printing papers, comprising:

[0007] main body;

[0008] a rubber roller rotatably disposed on the main body;

[0009] A print head assembly is mounted on the main body. The print head assembly and the rubber roller are matched to each other for printing on printing paper. Paper is fed from one side of the main body and passes between the print head assembly and the rubber roller. The paper is pressed against the rubber roller. The paper includes front-side thermal-coated printing paper and back-side thermal-coated printing paper.

[0010] A movable cutter assembly is movably arranged on the main body and located on one side of the paper;

[0011] A fixed cutter is fixedly arranged on the main body and is located on the other side of the paper, and the paper is cut by the movable cutter assembly and the fixed cutter;

[0012] a paper discharge mechanism, located on the main body and opposite to the movable cutter assembly, and used to form a paper discharge passage between the movable cutter assembly and the paper discharge mechanism;

[0013] A first guide mechanism and a second guide mechanism are both provided on the main body and are spaced apart on both sides of the paper, the first guide mechanism is located between the print head assembly and the movable cutter assembly, and the second guide mechanism is located between the rubber roller and the fixed cutter;

[0014] When the paper is reverse-side thermally coated printing paper, the first guide mechanism is at least partially used to push the paper away, so that a first gap is formed between the outermost vertical line of the first guide mechanism and the outermost vertical line of the movable cutter assembly, so that the paper enters the first gap and is prevented from entering the interior of the movable cutter assembly;

[0015] When the paper is front-side thermal coated printing paper, the second guide mechanism is at least partially used to push the paper away, so that a second distance is formed between the outermost vertical line of the fixed cutter and the outermost vertical line of the paper discharge mechanism, so that the paper can pass through the second distance and prevent the paper from entering the gap between the fixed cutter and the paper discharge mechanism.

[0016] A further embodiment of the present invention is that the first guide mechanism includes a first guide block, the first guide block is located below the movable cutter assembly, the side of the first guide block facing the second guide mechanism is a first guide bevel, the cutting edge at each point of the first guide bevel is at an acute angle to the vertical line, and the first guide bevel pushes the paper away so that the paper enters the area of ​​the first spacing or the second spacing.

[0017] A further embodiment of the present invention is that the second guide mechanism includes a second guide block, the side of the second guide block opposite to the first guide block is a second guide bevel, the second guide bevel is an inclined straight line, and an acute angle is formed between the second guide bevel and the vertical line, and the second guide bevel is used to push the paper open so that the paper enters the first spacing or the second spacing area.

[0018] A further embodiment of the present invention is that the vertical line through which the top end of the first guide bevel passes is located to the right of the vertical tangent on the leftmost side of the outside of the rubber roller, the vertical line through which the top end of the second guide bevel passes is located to the right of the vertical line through which the top end of the first guide bevel passes, and the vertical line through which the outermost top end of the fixed cutter passes is located to the right of the vertical line through which the top end of the second guide bevel passes.

[0019] A further embodiment of the present invention is that the horizontal spacing between the outermost point of the first guide block and the outermost point of the second guide block is smaller than the first spacing, and the first spacing is smaller than the second spacing, so that when the paper is reverse-side thermal-coated printing paper, the outermost side of the first guide block presses against the paper to allow the paper to enter the first spacing, and when the paper is front-side thermal-coated printing paper, the outermost side of the fixed cutter presses against the paper to allow the paper to enter the second spacing.

[0020] A further embodiment of the present invention is that when the paper is front-side thermal-coated printing paper, the paper passes between the first guide block and the second guide block and enters the second spacing to prevent the paper from entering the gap between the rubber roller and the second guide block.

[0021] A further embodiment of the present invention is that the movable cutter assembly includes a cutter box, the cutter and the outermost vertical line are to the left of the leftmost tangent line outside the rubber roller, so that when the paper is thermal coated printing paper, the paper passes through the first spacing and is sent out along the paper output channel.

[0022] A further implementation scheme of the present invention is that the print head assembly includes a print head support seat, a spring, a thermal film and a thermal film support seat, the print head support seat is fixed on the main body, the thermal film support seat is elastically connected to the print head support seat through a spring, the thermal film is fixed on the thermal film support seat, and the paper passes between the thermal film and the rubber roller.

[0023] The beneficial effects of the present invention are:

[0024] This printer is compatible with printing on both the front and back sides of thermally coated printing paper. A first guide mechanism and a second guide mechanism are provided in the main body of the printer. The first guide mechanism is on the same side of the movable cutter assembly, and the second guide mechanism is on the same side of the fixed cutter. The direction of the paper is constrained by the first guide mechanism and the second guide mechanism. When the paper is thermally coated printing paper on the back side, the first guide mechanism at least partially pushes the paper away, so that a first distance is formed between the outermost vertical line of the first guide mechanism and the outermost vertical line of the movable cutter assembly, so that the paper enters the first distance and is thereby Prevent paper from entering the interior of the movable cutter assembly; when the paper is front-side thermal coated printing paper, the second guide mechanism is at least partially used to push the paper away, so that a second distance is formed between the outermost vertical line of the fixed cutter and the outermost vertical line of the paper discharge mechanism, so that the paper can pass through the second distance, preventing the paper from entering the gap between the fixed cutter and the paper discharge mechanism, thereby avoiding paper jams during the paper feeding process and avoiding the frequent clearing time costs caused by paper jams, thereby improving printing efficiency, reducing maintenance costs, enriching the use scenarios of the printer, and realizing multiple uses of one machine, improving utilization rate and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a plan view schematic diagram of the present invention;

[0026] Figure 2 It is a planar schematic diagram of the printing process of the front-side thermal-coated printing paper;

[0027] Figure 3 It is a planar schematic diagram of the printing process of reverse-side thermal-coated printing paper. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0029] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0030] It should be noted that the terms "first," "second," etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and that the objects distinguished by "first," "second," etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0031] It should be noted that, in the description of this application, the directions or positional relationships indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional terms do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional terms "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0032] It should be noted that, in the present application, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0033] Example 1

[0034] In this embodiment, a printer compatible with both front-side and back-side thermally coated printing paper is provided, comprising:

[0035] Subject 1;

[0036] A rubber roller 2 is rotatably mounted on the main body 1;

[0037] The print head assembly 3 is arranged on the main body 1. The print head assembly 3 and the rubber roller 2 are matched to each other for printing on the printing paper. The paper 4 is fed from one side of the main body 1 and passes between the print head assembly 3 and the rubber roller 2, and the paper 4 is rolled and matched with the rubber roller 2. The paper 4 includes a front-side thermal-sensitive coated printing paper and a back-side thermal-sensitive coated printing paper. The front side is the outer side of the paper 4 with a coating. When printing, the outer side of the paper 4 is in direct contact with the print head assembly 3 to print. Similarly, the back side is the inner side of the paper 4 with a coating. When printing, the inner side of the paper 4 is in contact with the print head assembly 3. Since the paper roll is a scroll, the directions of the paper 4 on the front and back are different.

[0038] A movable cutter assembly 5 is movably arranged on the main body 1 and located on one side of the paper 4;

[0039] A fixed cutter 6 is fixedly arranged on the main body 1 and is located on the other side of the paper 4. The fixed cutter 6 is used to cut the paper 4 through the movement of the movable cutter assembly 5;

[0040] The paper discharge mechanism 7 is located on the main body 1 and is opposite to the movable cutter assembly 5. It is used to form a paper discharge channel 8 between the movable cutter assembly 5 and the paper 4 through which the paper 4 passes. Traditional printers can only perform this operation on the front or back of the paper 4, and due to the warping of the paper 4, the paper 4 will not be rolled into the movable cutter assembly 5 or into the gap between the fixed cutter 6 and the paper discharge mechanism 7, which effectively solves the problems of compatibility and paper jams.

[0041] In this embodiment, a first guide mechanism 9 and a second guide mechanism 10 are also included, both of which are arranged on the main body 1 and are relatively spaced apart on both sides of the paper 4. The first guide mechanism 9 is located between the print head assembly 3 and the movable cutter assembly 5, and the second guide mechanism 10 is located between the rubber roller 2 and the fixed cutter 6. The first guide mechanism 9 and the second guide mechanism 10 constrain the direction of the paper 4 to avoid paper jams.

[0042] First, when the paper 4 is reverse-side thermally coated printing paper, the first guide mechanism 9 is at least partially used to push the paper 4 away, so that a first gap 11 is formed between the outermost vertical line of the first guide mechanism 9 and the outermost vertical line of the movable cutter assembly 5, so that the paper 4 enters the first gap 11, thereby preventing the paper 4 from entering the interior of the movable cutter assembly 5.

[0043] When the paper 4 is front-side thermal-coated printing paper, the second guide mechanism 10 is at least partially used to push the paper 4 away, so that a second gap 12 is formed between the outermost vertical line of the fixed cutter 6 and the outermost vertical line of the paper discharge mechanism 7, so that the paper 4 can pass through the second gap 12, preventing the paper 4 from entering the gap between the fixed cutter 6 and the paper discharge mechanism 7, so that the paper feeding process is very smooth and there will be no paper jam or paper blockage.

[0044] Example 2

[0045] A printer compatible with front-side and back-side thermal coated printing paper, comprising:

[0046] Subject 1;

[0047] A rubber roller 2 is rotatably mounted on the main body 1;

[0048] The print head assembly 3 is arranged on the main body 1. The print head assembly 3 and the rubber roller 2 are matched to each other for printing on the printing paper. The paper 4 is fed from one side of the main body 1 and passes between the print head assembly 3 and the rubber roller 2, and the paper 4 is rolled and matched with the rubber roller 2. The paper 4 includes a front-side thermal-sensitive coated printing paper and a back-side thermal-sensitive coated printing paper. The front side is the outer side of the paper 4 with a coating. When printing, the outer side of the paper 4 is in direct contact with the print head assembly 3 to print. Similarly, the back side is the inner side of the paper 4 with a coating. When printing, the inner side of the paper 4 is in contact with the print head assembly 3. Since the paper roll is a scroll, the directions of the paper 4 on the front and back are different.

[0049] A movable cutter assembly 5 is movably arranged on the main body 1 and located on one side of the paper 4;

[0050] A fixed cutter 6 is fixedly arranged on the main body 1 and is located on the other side of the paper 4. The fixed cutter 6 is used to cut the paper 4 through the movement of the movable cutter assembly 5;

[0051] The paper discharge mechanism 7 is located on the main body 1 and is opposite to the movable cutter assembly 5. It is used to form a paper discharge channel 8 between the movable cutter assembly 5 and the paper 4 through which the paper 4 passes. Traditional printers can only perform this operation on the front or back of the paper 4, and due to the warping of the paper 4, the paper 4 will not be rolled into the movable cutter assembly 5 or into the gap between the fixed cutter 6 and the paper discharge mechanism 7, which effectively solves the problems of compatibility and paper jams.

[0052] In this embodiment, a first guide mechanism 9 and a second guide mechanism 10 are also included, both of which are arranged on the main body 1 and are relatively spaced apart on both sides of the paper 4. The first guide mechanism 9 is located between the print head assembly 3 and the movable cutter assembly 5, and the second guide mechanism 10 is located between the rubber roller 2 and the fixed cutter 6. The first guide mechanism 9 and the second guide mechanism 10 constrain the direction of the paper 4 to avoid paper jams.

[0053] First, when the paper 4 is reverse-side thermally coated printing paper, the first guide mechanism 9 is at least partially used to push the paper 4 away, so that a first gap 11 is formed between the outermost vertical line of the first guide mechanism 9 and the outermost vertical line of the movable cutter assembly 5, so that the paper 4 enters the first gap 11, thereby preventing the paper 4 from entering the interior of the movable cutter assembly 5.

[0054] When the paper 4 is front-side thermal-coated printing paper, the second guide mechanism 10 is at least partially used to push the paper 4 away, so that a second gap 12 is formed between the outermost vertical line of the fixed cutter 6 and the outermost vertical line of the paper discharge mechanism 7, so that the paper 4 can pass through the second gap 12, preventing the paper 4 from entering the gap between the fixed cutter 6 and the paper discharge mechanism 7, so that the paper feeding process is very smooth and there will be no paper jam or paper blockage.

[0055] In this embodiment, the first guide mechanism 9 includes a first guide block 90, which is located below the movable cutter assembly 5. The side of the first guide block 90 facing the second guide mechanism 10 is a first guide bevel 91. The cutting edges of each point of the first guide bevel 91 are at acute angles to the vertical line, and the first guide bevel 91 pushes the paper 4 open so that the paper 4 enters the first spacing 11 or the second spacing 12. In this embodiment, further, the second guide mechanism 10 includes a second guide block 100, and the side opposite to the first guide block 90 is a second guide bevel 101. The second guide bevel 101 is an inclined straight line, and the second guide bevel 101 forms an acute angle with the vertical line. The second guide bevel 101 is used to push the paper 4 open so that the paper 4 enters the first spacing 11 or the second spacing 12, thereby making the paper feeding process smoother.

[0056] Example 3

[0057] A printer compatible with front-side and back-side thermal coated printing paper, comprising:

[0058] Subject 1;

[0059] A rubber roller 2 is rotatably mounted on the main body 1;

[0060] The print head assembly 3 is arranged on the main body 1. The print head assembly 3 and the rubber roller 2 are matched to each other for printing on the printing paper. The paper 4 is fed from one side of the main body 1 and passes between the print head assembly 3 and the rubber roller 2, and the paper 4 is rolled and matched with the rubber roller 2. The paper 4 includes a front-side thermal-sensitive coated printing paper and a back-side thermal-sensitive coated printing paper. The front side is the outer side of the paper 4 with a coating. When printing, the outer side of the paper 4 is in direct contact with the print head assembly 3 to print. Similarly, the back side is the inner side of the paper 4 with a coating. When printing, the inner side of the paper 4 is in contact with the print head assembly 3. Since the paper roll is a scroll, the directions of the paper 4 on the front and back are different.

[0061] A movable cutter assembly 5 is movably arranged on the main body 1 and located on one side of the paper 4;

[0062] A fixed cutter 6 is fixedly arranged on the main body 1 and is located on the other side of the paper 4. The fixed cutter 6 is used to cut the paper 4 through the movement of the movable cutter assembly 5;

[0063] The paper discharge mechanism 7 is located on the main body 1 and is opposite to the movable cutter assembly 5. It is used to form a paper discharge channel 8 between the movable cutter assembly 5 and the paper 4 through which the paper 4 passes. Traditional printers can only perform this operation on the front or back of the paper 4, and due to the warping of the paper 4, the paper 4 will not be rolled into the movable cutter assembly 5 or into the gap between the fixed cutter 6 and the paper discharge mechanism 7, which effectively solves the problems of compatibility and paper jams.

[0064] In this embodiment, a first guide mechanism 9 and a second guide mechanism 10 are also included, both of which are arranged on the main body 1 and are relatively spaced apart on both sides of the paper 4. The first guide mechanism 9 is located between the print head assembly 3 and the movable cutter assembly 5, and the second guide mechanism 10 is located between the rubber roller 2 and the fixed cutter 6. The first guide mechanism 9 and the second guide mechanism 10 constrain the direction of the paper 4 to avoid paper jams.

[0065] First, when the paper 4 is reverse-side thermally coated printing paper, the first guide mechanism 9 is at least partially used to push the paper 4 away, so that a first gap 11 is formed between the outermost vertical line of the first guide mechanism 9 and the outermost vertical line of the movable cutter assembly 5, so that the paper 4 enters the first gap 11, thereby preventing the paper 4 from entering the interior of the movable cutter assembly 5.

[0066] When the paper 4 is front-side thermal-coated printing paper, the second guide mechanism 10 is at least partially used to push the paper 4 away, so that a second gap 12 is formed between the outermost vertical line of the fixed cutter 6 and the outermost vertical line of the paper discharge mechanism 7, so that the paper 4 can pass through the second gap 12, preventing the paper 4 from entering the gap between the fixed cutter 6 and the paper discharge mechanism 7, so that the paper feeding process is very smooth and there will be no paper jam or paper blockage.

[0067] In this embodiment, the first guide mechanism 9 includes a first guide block 90, which is located below the movable cutter assembly 5. The side of the first guide block 90 facing the second guide mechanism 10 is a first guide bevel 91. The cutting edges of each point of the first guide bevel 91 are at acute angles to the vertical line, and the first guide bevel 91 pushes the paper 4 open so that the paper 4 enters the first spacing 11 or the second spacing 12. In this embodiment, further, the second guide mechanism 10 includes a second guide block 100, and the side opposite to the first guide block 90 is a second guide bevel 101. The second guide bevel 101 is an inclined straight line, and the second guide bevel 101 forms an acute angle with the vertical line. The second guide bevel 101 is used to push the paper 4 open so that the paper 4 enters the first spacing 11 or the second spacing 12, thereby making the paper feeding process smoother.

[0068] Among them, the print head assembly 3 includes a print head support seat 13, a spring 14, a thermal film 15 and a thermal film support seat 16. The print head support seat 13 is fixed on the main body 1, and the thermal film support seat 16 is elastically connected to the print head support seat 13 through the spring 14. The thermal film 15 is fixed on the thermal film support seat 16, and the paper 4 passes between the thermal film 15 and the rubber roller 2.

[0069] Furthermore, the vertical line through which the topmost point of the first guide bevel 91 passes is located to the right of the vertical tangent of the leftmost side of the rubber roller 2, the vertical line through which the topmost point of the second guide bevel 101 passes is located to the right of the vertical line through which the topmost point of the first guide bevel 91 passes, the vertical line through which the outermost point of the fixed cutter 6 passes is located to the right of the vertical line through which the topmost point of the second guide bevel 101 passes, the horizontal spacing between the outermost point of the first guide block 90 and the outermost point of the second guide block 100 is smaller than the first spacing 11, and the first spacing 11 is smaller than the second spacing 12. , so that when the paper 4 is a reverse-side thermal coating printing paper, the outermost side of the first guide block 90 abuts against the paper 4 so that the paper 4 enters the first gap 11. When the paper 4 is a front-side thermal coating printing paper, the outermost side of the fixed cutter 6 abuts against the paper 4 so that the paper 4 enters the second gap 12. When the paper 4 is a front-side thermal coating printing paper, the paper 4 passes between the first guide block 90 and the second guide block 100 and enters the second gap 12 to prevent the paper 4 from entering the gap between the rubber roller 2 and the second guide block 100. The movable cutter assembly 5 includes a cutter box, the cutter and the outermost vertical The straight line is on the left side of the leftmost tangent line outside the rubber roller 2, so that when the paper 4 is a thermal coating printing paper, the paper 4 passes through the first spacing 11 and is sent out along the paper output channel 8, that is, the width of the first spacing 11 and the second spacing 12 is increased as much as possible. The reason for the position and layout of the above-mentioned vertical lines is that when the printed paper 4 is a front-side thermal coating printing paper, after the paper 4 passes between the thermal sheet 15 and the rubber roller 2, the paper 4 passes between the first guide block 90 and the second guide block 100 at an oblique angle, and due to the curling direction of the front-side thermal coating printer, the paper 4 naturally contacts the outermost side of the fixed cutter 6 first, and the second spacing 12 is large enough, so that the paper 4 can enter the second spacing 12 without entering the gap between the fixed cutter 6 and the paper discharge mechanism 7; due to the curling direction of the reverse thermal coating printer, the paper 4 naturally contacts the outermost side of the second guide block 100 first, and the first spacing 11 is large enough, so that the paper 4 can enter the first spacing 11 without entering the gap of the movable cutter assembly 5. It is not only compatible with the application of front and back thermal coating printing paper, but also can effectively avoid paper jams and paper blockages, reduce maintenance costs, and at the same time improve printing efficiency, enrich the use scenarios of the printer, and realize multiple uses of one machine, thereby improving utilization rate and efficiency.

[0070] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A printer compatible with front and back thermal coated printing paper, characterized in that: include: main body; a rubber roller rotatably mounted on the main body; A print head assembly is mounted on the main body. The print head assembly and the rubber roller are matched to each other for printing on printing paper. Paper is fed from one side of the main body and passes between the print head assembly and the rubber roller. The paper is pressed against the rubber roller. The paper includes front-side thermal-coated printing paper and back-side thermal-coated printing paper. A movable cutter assembly is movably arranged on the main body and located on one side of the paper; A fixed cutter is fixedly arranged on the main body and is located on the other side of the paper, and the paper is cut by the movable cutter assembly and the fixed cutter; a paper discharge mechanism, located on the main body and opposite to the movable cutter assembly, and used to form a paper discharge passage between the movable cutter assembly and the paper discharge mechanism; A first guide mechanism and a second guide mechanism are both provided on the main body and are spaced apart on both sides of the paper, the first guide mechanism is located between the print head assembly and the movable cutter assembly, and the second guide mechanism is located between the rubber roller and the fixed cutter; When the paper is reverse-side thermally coated printing paper, the first guide mechanism is at least partially used to push the paper away, so that a first gap is formed between the outermost vertical line of the first guide mechanism and the outermost vertical line of the movable cutter assembly, so that the paper enters the first gap and is prevented from entering the interior of the movable cutter assembly; When the paper is front-side thermal-coated printing paper, the second guide mechanism is at least partially used to push the paper away so that a second gap is formed between the outermost vertical line of the fixed cutter and the outermost vertical line of the paper discharge mechanism, so that the paper passes through the second gap and is prevented from entering the gap between the fixed cutter and the paper discharge mechanism; The first guide mechanism includes a first guide block, the first guide block is located below the movable cutter assembly, and a first guide bevel is formed on a side of the first guide block facing the second guide mechanism. The cutting edge at each point of the first guide bevel forms an acute angle with a vertical line, and the first guide bevel pushes the paper away so that the paper enters the area of ​​the first spacing or the second spacing. The second guide mechanism includes a second guide block, wherein the second guide block has a second guide bevel on a side opposite to the first guide block, the second guide bevel being an inclined straight line, forming an acute angle with the vertical line, and the second guide bevel being used to push the paper away so that the paper enters the first spacing area or the second spacing area; The horizontal distance between the outermost point of the first guide block and the outermost point of the second guide block is smaller than the first distance, and the first distance is smaller than the second distance.

2. A printer compatible with front and back thermal coated printing paper according to claim 1, characterized in that: The vertical line through which the top end of the first guide bevel passes is located to the right of the vertical tangent on the leftmost side of the outside of the rubber roller, the vertical line through which the top end of the second guide bevel passes is located to the right of the vertical line through which the top end of the first guide bevel passes, and the vertical line through which the outermost top end of the fixed cutter passes is located to the right of the vertical line through which the top end of the second guide bevel passes.

3. A printer compatible with front and back thermal coated printing paper according to claim 2, characterized in that: When the paper is reverse-side thermal-coated printing paper, the outermost side of the first guide block presses against the paper so that the paper enters the first spacing; when the paper is reverse-side thermal-coated printing paper, the outermost side of the fixed cutter presses against the paper so that the paper enters the second spacing.

4. A printer compatible with front and back thermal coated printing paper according to claim 3, characterized in that: When the paper is front-side thermal-coated printing paper, the paper passes between the first guide block and the second guide block and enters the second gap to prevent the paper from entering the gap between the rubber roller and the second guide block.

5. The printer compatible with front and back thermal coated printing paper according to claim 4, characterized in that: The movable cutter assembly includes a cutter box, the cutter and the outermost vertical line are on the left side of the leftmost tangent line outside the rubber roller, so that the paper passes through the first spacing and is sent out along the paper outlet channel.

6. The printer compatible with front and back thermal coated printing paper according to claim 1, characterized in that: The print head assembly includes a print head support seat, a spring, a thermal film and a thermal film support seat. The print head support seat is fixed on the main body. The thermal film support seat is elastically connected to the print head support seat through a spring. The thermal film is fixed on the thermal film support seat. The paper passes between the thermal film and the rubber roller.

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