Printer compatible with front-side and back-side thermosensitive coating printing paper

Abstract

The invention provides a printer compatible with front and back thermosensitive coating printing paper. The printer comprises a main body; a rubber roller; a printhead assembly; a movable cutter assembly; fixing the cutter; a paper delivery mechanism; a first guide mechanism and a second guide mechanism; when the paper is the reverse side thermosensitive coating printing paper, the first guide mechanism is at least partially used for ejecting the paper open, so that a first interval is formed between the vertical line on the outermost side of the first guide mechanism and the vertical line on the outermost side of the movable cutter assembly, and the paper enters the first interval so as to be prevented from entering the movable cutter assembly; when the paper is the front thermosensitive coating printing paper, the second guide mechanism is at least partially used for ejecting the paper open, so that a second interval is formed between the vertical line on the outermost side of the fixed cutter and the vertical line on the outermost side of the paper delivery mechanism, the paper penetrates into the second interval, the paper is prevented from entering the gap between the fixed cutter and the paper delivery mechanism, and the paper delivery efficiency is improved. And meanwhile, the printer is compatible with printing use of front and back thermosensitive coating printing paper, the use scene of the printer is enriched, multiple purposes can be achieved, and the utilization rate and the use efficiency are improved.

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 one of the common office automation devices in offices and homes, used to print documents, reports, pictures, etc.

[0003] Most places such as supermarket cash registers, catering industry, bank ATMs, lockers, and queuing machines require thermal printers for printing transaction receipts or tickets. The printer usually has a housing or cabinet, in which a thermal printer is installed. The existing printer consists of a paper feed component, a printing component, a rubber roller component, a paper cutting component, and a paper output component. Currently, the thermal coating of thermal printing paper on the market is on the front and back. Since the printing paper is in a roll, when the paper is about to run out, the problem of uneven printing paper becomes more and more serious, which can easily cause the printing paper to run into the movable cutter component (when the thermal coating is on the back) or the printing paper to block other parts on the fixed cutter side (when the thermal coating is on the front). In this way, the smoothness of the paper output channel between the printing component and the paper cutting component directly affects the function of the entire printer and the user's use cost, use experience, and use efficiency.

[0004] Furthermore, current printers can only be used to print on the front or back side 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 front and back thermal coated printing papers to solve the problems raised in the above background technology.

[0006] In view of this, the present invention provides a printer compatible with front and back thermal coated printing papers, comprising: main body; A rubber roller rotatably disposed on the main body; A print head assembly is arranged on the main body, the print head assembly and the rubber roller are matched to each other for printing on printing paper, the paper is fed from one side of the main body and passes between the print head assembly and the rubber roller, and the paper is rolled and matched with the rubber roller, and the paper includes front-side thermal-sensitive coated printing paper and back-side thermal-sensitive coated printing paper; A movable cutter assembly is movably arranged on the main body and located at one side of the paper; A fixed cutter is fixedly arranged on the main body and 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 for the paper to pass through between the movable cutter assembly and the paper discharge mechanism; A first guide mechanism and a second guide mechanism are both arranged on the main body and are arranged at opposite sides of the paper at a relative interval, 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 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, thereby preventing 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 open, 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.

[0007] A further implementation scheme 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 an acute angle with the vertical line, and the first guide bevel pushes the paper open so that the paper enters the area of ​​the first spacing or the second spacing.

[0008] A further implementation scheme 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, the second guide bevel forms an acute angle with 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.

[0009] A further implementation scheme of the present invention is that the vertical line passed by the topmost point of the first guide bevel is located to the right of the vertical tangent on the leftmost side of the outside of the rubber roller, the vertical line passed by the topmost point of the second guide bevel is located to the right of the vertical line passed by the topmost point of the first guide bevel, and the vertical line passed by the outermost top point of the fixed cutter is located to the right of the vertical line passed by the topmost point of the second guide bevel.

[0010] 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 reverse-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.

[0011] 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.

[0012] A further embodiment of the present invention is that the movable cutter assembly includes a cutter box, and 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.

[0013] 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 by 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.

[0014] The beneficial effects of the present invention are: The printer can be compatible with printing on both the front and back thermal coated printing papers. A first guide mechanism and a second guide mechanism are arranged 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 the back thermal coated printing paper, the first guide mechanism at least partially pushes the paper away, so that a first spacing 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 spacing and thus Prevent paper from entering 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 open, so that a second spacing 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 spacing, preventing the paper from entering the gap between the fixed cutter and the paper discharge mechanism, thereby avoiding paper jams during paper feeding, avoiding 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

[0015] Figure 1 It is a plan view schematic diagram of the present invention; Figure 2 It is a plan view schematic diagram of the printing process of the front thermal coating printing paper; Figure 3 It is a plan view schematic diagram of the printing process of the reverse-side thermal-coated printing paper. DETAILED DESCRIPTION

[0016] The following will be combined with the 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, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0017] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. 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 drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0018] It should be noted that the terms "first", "second", etc. in the specification and claims of the present 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 can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. 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.

[0019] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0020] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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 sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment 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 reverse 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.

[0021] Example 1 In this embodiment, a printer compatible with front and back thermal coated printing papers is provided, comprising: Subject 1; A rubber roller 2 is rotatably disposed on the main body 1; 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 front-side thermal-sensitive coated printing paper and 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 type, the directions of the front and back sides of the paper 4 are different.

[0022] A movable cutter assembly 5 is movably arranged on the main body 1 and located on one side of the paper 4; 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 movable cutter assembly 5 and the movable cutter assembly 5; 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 for the paper 4 to pass through between the movable cutter assembly 5. Traditional printers can only perform this operation on the front or back side 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 will not be rolled into the gap between the fixed cutter 6 and the paper discharge mechanism 7, which well solves the problems of compatibility and paper jam.

[0023] 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.

[0024] First, when the paper 4 is a reverse-side thermal-coated printing paper, the first guide mechanism 9 is at least partially used to push the paper 4 open, so that a first spacing 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 spacing 11, thereby preventing the paper 4 from entering the interior of the movable cutter assembly 5.

[0025] 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 spacing 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 spacing 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 without paper jams and paper blockages.

[0026] Example 2 A printer compatible with front-side and back-side thermal coated printing paper, comprising: Subject 1; A rubber roller 2 is rotatably disposed on the main body 1; 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 front-side thermal-sensitive coated printing paper and 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 type, the directions of the front and back sides of the paper 4 are different.

[0027] A movable cutter assembly 5 is movably arranged on the main body 1 and located on one side of the paper 4; 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 movable cutter assembly 5 and the movable cutter assembly 5; 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 for the paper 4 to pass through between the movable cutter assembly 5. Traditional printers can only perform this operation on the front or back side 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 will not be rolled into the gap between the fixed cutter 6 and the paper discharge mechanism 7, which well solves the problems of compatibility and paper jam.

[0028] 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.

[0029] First, when the paper 4 is a reverse-side thermal-coated printing paper, the first guide mechanism 9 is at least partially used to push the paper 4 open, so that a first spacing 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 spacing 11, thereby preventing the paper 4 from entering the interior of the movable cutter assembly 5.

[0030] 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 spacing 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 spacing 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 without paper jams and paper blockages.

[0031] 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 at 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 of the second guide block 100 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.

[0032] Example 3 A printer compatible with front-side and back-side thermal coated printing paper, comprising: Subject 1; A rubber roller 2 is rotatably disposed on the main body 1; 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 front-side thermal-sensitive coated printing paper and 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 type, the directions of the front and back sides of the paper 4 are different.

[0033] A movable cutter assembly 5 is movably arranged on the main body 1 and located on one side of the paper 4; 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 movable cutter assembly 5 and the movable cutter assembly 5; 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 for the paper 4 to pass through between the movable cutter assembly 5. Traditional printers can only perform this operation on the front or back side 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 will not be rolled into the gap between the fixed cutter 6 and the paper discharge mechanism 7, which well solves the problems of compatibility and paper jam.

[0034] 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.

[0035] First, when the paper 4 is a reverse-side thermal-coated printing paper, the first guide mechanism 9 is at least partially used to push the paper 4 open, so that a first spacing 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 spacing 11, thereby preventing the paper 4 from entering the interior of the movable cutter assembly 5.

[0036] 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 spacing 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 spacing 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 without paper jams and paper blockages.

[0037] 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 at 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 of the second guide block 100 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.

[0038] 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, 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.

[0039] Furthermore, the vertical line through which the top 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 top point of the second guide bevel 101 passes is located to the right of the vertical line through which the top point of the first guide bevel 91 passes, the vertical line through which the outermost top point of the fixed cutter 6 passes is located to the right of the vertical line through which the top 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-coated printing paper, the outermost side of the first guide block 90 abuts against the paper 4 so that the paper 4 enters the first spacing 11, and when the paper 4 is a front-side thermal-coated printing paper, the outermost side of the fixed cutter 6 abuts against the paper 4 so that the paper 4 enters the second spacing 12, and when the paper 4 is a front-side thermal-coated printing paper, the paper 4 passes between the first guide block 90 and the second guide block 100 and enters the second spacing 12, so as to prevent the paper 4 from not entering the gap between the rubber roller 2 and the second guide block 100, and 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 widths of the first spacing 11 and the second spacing 12 are 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 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 thermal coating printer, the paper 4 naturally contacts the outermost side of the fixed cutter 6 first, and the second spacing 12 is increased as much as possible. 12 is large enough, so that the paper 4 enters 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 to allow the paper 4 to enter the first spacing 11 without entering the gap of the movable cutter assembly 5. This is not only compatible with the application of front and back thermal coated printing papers, but also can effectively avoid paper jams and paper blockages, reduce maintenance costs, and also improve printing efficiency, enrich the use scenarios of the printer, and achieve multiple uses of one machine, thereby improving utilization rate and efficiency.

[0040] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments 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 the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A printer compatible with front and back thermal coated printing paper, characterized in that: include: main body; A rubber roller rotatably disposed on the main body; A print head assembly is arranged on the main body, the print head assembly and the rubber roller are matched to each other for printing on printing paper, the paper is fed from one side of the main body and passes between the print head assembly and the rubber roller, and the paper is rolled and matched with the rubber roller, and the paper includes front-side thermal-sensitive coated printing paper and back-side thermal-sensitive coated printing paper; A movable cutter assembly is movably arranged on the main body and located at one side of the paper; A fixed cutter is fixedly arranged on the main body and 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 for the paper to pass through between the movable cutter assembly and the paper discharge mechanism; A first guide mechanism and a second guide mechanism are both arranged on the main body and are arranged at opposite sides of the paper at a relative interval, 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 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, thereby preventing 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 open, 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.

2. A printer compatible with front and back thermal coated printing papers according to claim 1, characterized in that: The first guide mechanism includes a first guide block, which 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.

3. A printer compatible with front and back thermal coated printing papers according to claim 2, characterized in that: The second guide mechanism includes a second guide block, and 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 there is an acute angle 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.

4. A printer compatible with front and back thermal coated printing papers according to claim 3, 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.

5. A printer compatible with front and back thermal coated printing papers according to claim 4, characterized in 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.

6. A printer compatible with front and back thermal coated printing papers according to claim 5, 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.

7. A printer compatible with front and back thermal coated printing papers according to claim 4, characterized in that: The movable cutter assembly comprises 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 output channel.

8. A printer compatible with front and back thermal coated printing papers 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, and the paper passes between the thermal film and the rubber roller.

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