Heat transfer printing machine

Abstract

This application provides a dye-sublimation printer, relating to the field of printers. The dye-sublimation printer includes a housing and a control unit; the housing has a photo paper tray, a circulation channel, a printing channel, and a paper output channel, with the inlet of the printing channel connected to the outlet of the photo paper tray and the outlet of the circulation channel; the control unit is movably mounted on the housing and controls the outlet of the printing channel to connect to either the inlet of the circulation channel or the inlet of the paper output channel. The dye-sublimation printer provided by this application solves the technical problem in existing dye-sublimation printers where paper needs to be fed back and forth multiple times before printing is complete, easily leading to accidental paper removal before printing is finished, resulting in printing failure.

Description

Technical Field

[0001] This application relates to the field of printers, and more specifically, to a dye-sublimation printer. Background Technology

[0002] Dye-sublimation technology uses heat to transfer pigments onto the printing medium, with the intensity of each color controlled by temperature changes in the print head. Because the pigments are applied to the paper through a sublimation process, the three primary colors blend together to form continuous color gradations. Therefore, this type of printer is often called a color digital photo printer. Yellow, magenta, blue, and any other color can be created by mixing these three primary colors; dye-sublimation printers achieve a variety of colors and color depths through the combination of these three colors.

[0003] However, in existing dye-sublimation printing processes, the three colors are not printed simultaneously. Instead, one color is used each time, and the desired color is achieved through three printing passes. For this reason, the printing medium needs to pass through the printer three times during the printing process. Some dye-sublimation printers also have a lamination process after the three color printing passes, where a special material from the ribbon is sublimated and adheres to the paper surface to form a protective film on top of the three color layers. Therefore, existing dye-sublimation printers require the paper to be fed back and forth multiple times before printing is complete, which can easily lead to the paper being accidentally pulled out before printing is finished, causing printing failure. Utility Model Content

[0004] The purpose of this application is to provide a dye-sublimation printer to alleviate the technical problem in the prior art where dye-sublimation printers require the paper to be fed back and forth multiple times before printing can be completed, which easily leads to the paper being accidentally pulled out before printing is completed, resulting in printing failure.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] The thermal sublimation printer provided by this utility model includes a housing and control components;

[0007] The housing has a photo paper box, a circulation channel, a printing channel, and a paper output channel. The inlet of the printing channel is connected to the outlet of the photo paper box and the outlet of the circulation channel.

[0008] The control component is movably mounted on the housing and controls the outlet of the printing channel to connect with the inlet of the circulation channel or the inlet of the paper output channel.

[0009] Furthermore, the axis of the circulation channel is configured as an arc that bulges away from the printing channel.

[0010] Furthermore, one end of the control element is hinged to the outer wall of the housing, and the other end is opposite to the inlet of the paper output channel or the inlet of the circulation channel.

[0011] Furthermore, the control component includes a hinge, a connecting part, and a control part;

[0012] The hinge is hinged to the housing, and the two ends of the connecting part are respectively connected to the hinge and the control part. The control part is opposite to the inlet of the paper output channel or opposite to the inlet of the circulation channel.

[0013] The control unit is provided with a guide slope. When the control unit is opposite to the inlet of the paper output channel, the guide slope is flush with the side wall of the circulation channel.

[0014] Furthermore, the thermal sublimation printer also includes a drive wheel, which is mounted on the housing and has its axis perpendicular to the axis of the circulation channel;

[0015] The rim of the drive wheel extends into the circulation channel, and the tangential direction of the rotation direction of the drive wheel is the same as the movement direction of the paper in the circulation channel.

[0016] Furthermore, the drive wheel is located above the circulation channel.

[0017] Furthermore, multiple transmission wheels are provided, and the multiple transmission wheels are spaced apart along the extension direction of the circulation channel.

[0018] Furthermore, the dye-sublimation printer also includes a control board, which is signal-connected to the control components and the drive wheel.

[0019] Furthermore, the housing includes a first housing, a second housing, and a third housing;

[0020] The first housing is provided with the photo paper tray, and the second housing is located on one side of the first housing and is provided with the printing channel and the paper output channel. The end of the printing channel of the second housing opposite to the paper output channel is connected to the photo paper tray.

[0021] The third housing is located above the second housing and together with the second housing forms a receiving area for accommodating the ribbon; the side wall of the third housing is provided with the circulation channel.

[0022] Furthermore, the dye-sublimation printer also includes a printhead assembly and a printing roller;

[0023] The top wall of the second housing has a first opening, and the bottom wall of the second housing has a second opening;

[0024] The printhead assembly is mounted above the second housing and extends into the first opening at its bottom, while the printing roller is mounted below the second housing and extends into the second opening at its top.

[0025] Based on the above technical solutions, the technical effects achievable by this utility model can be analyzed as follows:

[0026] The dye-sublimation printer provided by this utility model includes a housing and a control component. The housing has a photo paper tray, a circulation channel, a printing channel, and a paper output channel. The inlet of the printing channel is connected to the outlet of the photo paper tray and the outlet of the circulation channel. The control component is movably installed in the housing and controls the outlet of the printing channel to connect with either the inlet of the circulation channel or the inlet of the paper output channel. The control component can control the connection between the printing channel and the circulation channel or the paper output channel to switch the paper movement path. It is worth noting that when the printing channel is connected to the circulation channel, the printing channel is disconnected from the paper output channel; when the printing channel is connected to the paper output channel, the printing channel is disconnected from the circulation channel; the paper has only one movement path.

[0027] During the dye-sublimation printer printing process, the control unit connects the outlet of the printing channel with the inlet of the circulation channel; a single sheet of paper enters the printing channel from the paper tray; after a single monochrome print in the printing channel, the paper enters the circulation channel, moves in the circulation channel and re-enters the printing channel for another single monochrome print; that is, the paper completes the printing of one color for each revolution along the printing channel and circulation channel; until all printing and lamination are completed.

[0028] After printing and lamination are completed, the control unit connects the outlet of the printing channel with the inlet of the paper output channel, so that the printed and laminated paper is sent out of the machine from the paper output channel.

[0029] This dye-sublimation printer ejects the paper from the machine after printing is completed inside, improving the user experience and avoiding the problem of accidentally pulling out the paper before printing is finished, which could occur when the paper has to be fed back and forth multiple times. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A schematic diagram of a sublimation printer in printing state, provided in an embodiment of this application;

[0032] Figure 2A schematic diagram of a sublimation printer in the paper output state, provided in an embodiment of this application;

[0033] Figure 3 This is a schematic diagram of the control component in a dye-sublimation printer provided in an embodiment of this application.

[0034] icon:

[0035] 100 - Housing; 110 - Photo paper tray; 120 - Circulation channel; 130 - Printing channel; 140 - Paper output channel; 150 - First housing; 160 - Second housing; 170 - Third housing; 180 - Paper separating roller;

[0036] 200 - Control component; 210 - Hinge; 220 - Connecting part; 230 - Control part; 231 - Guide slope;

[0037] 300-Drive wheel;

[0038] 400-Control Panel;

[0039] 510 - Printhead assembly; 520 - Printing roller; 530 - Drive motor; 540 - Belt roller;

[0040] 600-battery. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "connection," and "axis" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] Dye-sublimation technology uses heat to transfer pigments onto the printing medium, with the intensity of each color controlled by temperature changes in the print head. Because the pigments are applied to the paper through a sublimation process, the three primary colors blend together to form continuous color gradations. Therefore, this type of printer is often called a color digital photo printer. Yellow, magenta, and blue—any other color—can be created by mixing these three primary colors. Dye-sublimation printers achieve various colors and color depths through the combination of these three colors. However, in the dye-sublimation printing process, the three colors are not printed simultaneously; instead, one color is used each time, and the desired color is achieved through three printing passes. For this reason, the printing medium needs to pass through the printer three times during the printing process. Some dye-sublimation printers also have a lamination process after the three color layers. This involves sublimating and attaching a special material from the ribbon onto the paper surface using the three color layers, forming a protective film that provides protection against oxidation, discoloration, water, and fingerprints. Dye-sublimation printers use disposable ribbons. Each ribbon roll contains yellow, red, and blue colors as a set, and one set of ribbon is wound through each photo to be printed. Current technology uses a straight paper path design. After printing one color, the paper returns to the designated position to begin printing the next color, and so on, until all three colors are printed and lamination is complete. The printed photo then exits the machine from the paper output tray. The paper moves back and forth 3-4 times, giving the user the impression that the paper has to go in and out 3-4 times before printing, resulting in a less than ideal user experience.

[0045] In view of this, the thermal sublimation printer provided in this embodiment of the present invention includes a housing 100 and a control component 200; the housing 100 has a photo paper tray 110, a circulation channel 120, a printing channel 130 and a paper output channel 140, the inlet of the printing channel 130 is connected to the outlet of the photo paper tray 110 and the outlet of the circulation channel 120; the control component 200 is movably installed in the housing 100 and controls the outlet of the printing channel 130 to be connected to the inlet of the circulation channel 120 or the inlet of the paper output channel 140.

[0046] Specifically, the dye-sublimation printer also includes a printhead assembly 510, a printing roller 520, a drive motor 530, and two ribbon rollers 540; a circulation channel 120 is located above the printing channel 130, and there is a receiving space between the circulation channel 120 and the printing channel 130, within which the printhead assembly 510 and the two ribbon rollers 540 are located; both ribbon rollers 540 are located above the printing channel 130, and the axis of the ribbon rollers 540 is perpendicular to the axis of the printing channel 130; the printing roller 520 is located below the printing channel 130, and the axis of the printing roller 520 is perpendicular to the axis of the printing channel 130; the sidewall of the printing channel 130 has a first opening and a second opening, the bottom of the printhead assembly 510 extends into the first opening, and the top of the printing roller 520 extends into the second opening, with the ribbon sequentially passing over one of the ribbon rollers 540, the gap between the printhead assembly 510 and the printing roller 520, and the other ribbon roller 540. The drive motor 530 is connected to the printing roller 520 via a transmission assembly, driving the printing roller 520 to rotate around its own axis, so that the printing roller 520 and the print head assembly 510 cooperate to print onto the paper. The transmission assembly between the drive motor 530 and the printing roller 520 can be a gear drive or the like, and is not limited here. Furthermore, the printing channel 130 and the paper output channel 140 are collinear and extend in the horizontal direction.

[0047] The control unit 200 can control the connection between the print channel 130 and the circulation channel 120 or the output channel 140 to switch the paper movement path. It is worth noting that when the print channel 130 is connected to the circulation channel 120, the print channel 130 is disconnected from the output channel 140; when the print channel 130 is connected to the output channel 140, the print channel 130 is disconnected from the circulation channel 120; the paper has only one movement path.

[0048] During the dye-sublimation printer printing process, the control unit 200 controls the connection between the outlet of the printing channel 130 and the inlet of the circulation channel 120; a single sheet of paper enters the printing channel 130 from the photo paper tray 110; after the paper is printed in a single color in the printing channel 130, it enters the circulation channel 120, and moves in the circulation channel 120 to re-enter the printing channel 130 for another single color print; that is, the paper completes the printing of one color every time it runs along the printing channel 130 and the circulation channel 120; until all printing and lamination are completed.

[0049] After printing and lamination are completed, the control unit 200 controls the outlet of the printing channel 130 to connect with the inlet of the paper output channel 140, so that the printed and laminated paper is sent out of the machine from the paper output channel 140.

[0050] This dye-sublimation printer ejects the paper from the machine after printing is completed inside, improving the user experience and avoiding the problem of accidentally pulling out the paper before printing is finished, which could occur when the paper has to be fed back and forth multiple times.

[0051] The following is a detailed description of the specific structure of a dye-sublimation printer:

[0052] In an optional embodiment of this utility model, the axis of the circulation channel 120 is configured as an arc that protrudes in a direction away from the printing channel 130.

[0053] Specifically, the axis of the circulation channel 120 is in the shape of an arc, a semicircle, or a C-shape.

[0054] The axis of the circulation channel 120 is curved to prevent sharp corners from preventing paper from passing through when it moves within the circulation channel 120, which would cause paper jams and reduce printing efficiency.

[0055] In an optional embodiment of this utility model, one end of the control member 200 is hinged to the outer wall of the housing 100, and the other end is opposite to the inlet of the paper output channel 140 or the inlet of the circulation channel 120.

[0056] Specifically, the control component 200 is hinged to the outer wall of the housing 100 via a pivot, and rotating the control component 200 causes it to be positioned opposite the paper output channel 140 or the circulation channel 120; see also Figure 1 When the control element 200 is opposite to the paper output channel 140, the printing channel 130 and the paper output channel 140 are disconnected, and the printing channel 130 is connected to the circulation channel 120; that is, during printing, the control element 200 is in position A, causing the paper output channel 140 to close; see [link to documentation]. Figure 2 When the control element 200 is opposite to the circulation channel 120, the printing channel 130 is disconnected from the circulation channel 120, and the printing channel 130 is connected to the paper output channel 140; that is, after printing and lamination are completed, the control board 400 issues a control command, and the control element 200 is located in position B, so that the circulation channel 120 is closed.

[0057] By hinged to the housing 100, the position of the end of the control component 200 is switched when the control component 200 is rotated, thereby blocking the paper output channel 140 or the circulation channel 120, and thus switching the paper movement path.

[0058] In the optional embodiments of this utility model, see Figure 3The control component 200 includes a hinge portion 210, a connecting portion 220, and a control portion 230. The hinge portion 210 is hinged to the housing 100. The two ends of the connecting portion 220 are connected to the hinge portion 210 and the control portion 230, respectively. The control portion 230 is opposite to the inlet of the paper output channel 140 or opposite to the inlet of the circulation channel 120. The control portion 230 is provided with a guide slope 231. When the control portion 230 is opposite to the inlet of the paper output channel 140, the guide slope 231 is flush with the side wall of the circulation channel 120.

[0059] Specifically, the upper surface of the control unit 230 is provided with a guide slope 231, and the lower surface is set as a plane; the guide slope 231 slopes gradually towards the lower surface from one end near the hinge 210 to the end away from the hinge 210; when the printing channel 130 is connected to the circulation channel 120, the guide slope 231 is flush with the side wall of the circulation channel 120, guiding the paper into the circulation channel 120 and avoiding paper jamming; when the printing channel 130 is connected to the paper output channel 140, the lower surface of the control unit 230 is a plane, so as to prevent the control unit 230 from obstructing the paper output.

[0060] The hinge portion 210 facilitates the connection between the control member 200 and the housing 100; the connecting portion 220 connects the connection portion with the control portion 230; the control portion 230 enables the control member 200 to be positioned opposite the paper output channel 140 or the circulation channel 120; and because the control member 200 has a guide slope 231, the guide slope 231 helps to guide the paper into the circulation channel 120 when the printing channel 130 is connected to the circulation channel 120, thus preventing the paper from getting stuck.

[0061] In an optional embodiment of this utility model, the thermal sublimation printer further includes a motor, and the motor and the control unit 200 are connected via a gear transmission system. The motor drives the control unit 200 to rotate via the gear transmission system to switch channels.

[0062] In an optional embodiment of this utility model, the thermal sublimation printer further includes a drive wheel 300, which is mounted on the housing 100 and has its axis perpendicular to the axis of the circulation channel 120. The rim of the drive wheel 300 extends into the circulation channel 120, and the tangential direction of the rotation direction of the drive wheel 300 is the same as the movement direction of the paper in the circulation channel 120.

[0063] Specifically, during the printing process, the control unit 200 controls the outlet of the printing channel 130 to connect with the inlet of the circulation channel 120. The paper enters the circulation channel 120 and moves in a circular motion along the extension direction of the circulation channel 120 under the drag of the transmission wheel 300.

[0064] The drive wheel 300 provides power for the movement of the paper within the circulation channel 120, preventing the paper from remaining in the circulation channel 120.

[0065] In an optional embodiment of this utility model, the transmission wheel 300 is located above the circulation channel 120.

[0066] Specifically, the shaft of the transmission wheel 300 is mounted on the housing 100 and is rotatably connected to the housing 100.

[0067] The drive wheel 300 is located above the circulation channel 120 to avoid the drive wheel 300 occupying the storage space and affecting components such as the ribbon pulley 540.

[0068] In an optional embodiment of this utility model, multiple transmission wheels 300 are provided, and the multiple transmission wheels 300 are spaced apart along the extension direction of the circulation channel 120.

[0069] Specifically, in this embodiment, four drive wheels 300 are provided, and the spacing between two adjacent drive wheels 300 is unequal. The specific installation position of the drive wheels 300 is designed according to actual needs. Of course, other numbers of drive wheels 300, such as three, five, or six, should also be within the protection scope of this utility model embodiment. Furthermore, the drive wheels 300 can be arranged in multiple rows, with multiple drive wheels 300 in each row spaced apart along the extension direction of the circulation channel 120; multiple rows of drive wheels 300 are spaced apart along the axial direction of the drive wheels 300, increasing the number of drive wheels 300 and enhancing the dragging effect on the paper.

[0070] Multiple drive wheels 300 are provided to enhance the dragging effect on the paper and further prevent the paper from getting stuck in the circulation channel 120.

[0071] In an optional embodiment of this utility model, the thermal sublimation printer further includes a control board 400, which is signal-connected to the control component 200 and the transmission wheel 300.

[0072] Specifically, the control board 400 is signal-connected to the control component 200, the transmission wheel 300, and the drive motor 530, controlling the rotation of the control component 200, the rotation of the transmission wheel 300, and the opening and closing of the drive motor 530. Furthermore, the control board 400 is signal-connected to the motor used to drive the control component 200.

[0073] The control board 400 enables automated operation of the thermal sublimation printer and ensures precise coordination between the control component 200, the transmission wheel 300, and the drive motor 530 to prevent the paper from failing to move properly.

[0074] In an optional embodiment of this utility model, the housing 100 includes a first housing 150, a second housing 160, and a third housing 170; the first housing 150 is provided with a photo paper tray 110, the second housing 160 is located on one side of the first housing 150 and is provided with a printing channel 130 and a paper output channel 140, and the end of the printing channel 130 of the second housing 160 facing away from the paper output channel 140 is connected to the photo paper tray 110; the third housing 170 is located above the second housing 160 and together with the second housing 160 forms a receiving area for receiving ribbon; the side wall of the third housing 170 is provided with a circulation channel 120.

[0075] Specifically, the height of the first housing 150 is greater than the height of the second housing 160, and the outlet of the photo paper tray 110 is located at the bottom of the first housing 150; the dye-sublimation printer also includes a paper separating roller 180, part of which is located inside the photo paper tray 110. The second housing 160 is provided with a printing channel 130 and a paper output channel 140, wherein the printing channel 130 does not only have two openings, but the second housing 160 has a first opening on the top wall and a second opening on the bottom wall of the printing channel 130, so that the print head assembly 510 and the printing roller 520 can extend into the printing channel 130 to achieve the printing function. Preferably, the first housing 150, the second housing 160, and the third housing 170 are integrally formed.

[0076] The first housing 150 encloses to form a photo paper tray 110, the second housing 160 forms a printing channel 130 and a paper output channel 140, and the third housing 170 forms a circulation channel 120, so that the housing 100 of the thermal sublimation printer has a photo paper tray 110, a printing channel 130 and a paper output channel 140.

[0077] In an optional embodiment of this utility model, the dye-sublimation printer further includes a printhead assembly 510 and a printing roller 520; the top wall of the second housing 160 is provided with a first opening, and the bottom wall of the second housing 160 is provided with a second opening; the printhead assembly 510 is installed above the second housing 160 and its bottom extends into the first opening, and the printing roller 520 is installed below the second housing 160 and its top extends into the second opening.

[0078] Specifically, as described above, the printhead assembly 510 and the printing roller 520 have their bottom extending into the print channel 130 through a first opening, and their top extending into the print channel 130 through a second opening. Furthermore, the dye-sublimation printer also includes a battery 600.

[0079] The printhead assembly 510 and the printing roller 520 enable the dye-sublimation printer to have printing functionality.

[0080] The following is a detailed explanation of the operation process of a dye-sublimation printer:

[0081] The dye-sublimation printer adds a control component 200, a paper output channel 140, a circulation channel 120, and a drive wheel 300. The movement of the control component 200 and the drive wheel 300 is controlled by commands issued by the control board 400.

[0082] See Figure 1 During the printing process, the control unit 200 is in position A, which closes the paper output channel 140. The paper enters the circulation channel 120 and moves in a circular motion under the drag of the drive wheel 300. Each rotation completes the printing of one color. After 3-4 rotations, all printing and lamination are completed.

[0083] See Figure 2 After printing and lamination are completed, the control board 400 issues a control command, and the control component 200 is positioned at position B, which closes the circulation channel 120 and opens the paper output channel 140, allowing the paper to be sent out of the machine through the paper output channel 140.

[0084] Compared to existing technologies where paper needs to be fed back and forth 3-4 times at the paper output, this dye-sublimation printer only requires the paper to be printed inside the machine before it is ejected from the machine in one go, greatly improving the user experience.

[0085] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0086] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A thermal sublimation printer, characterized in that, include: Housing (100) and control unit (200); The housing (100) has a photo paper tray (110), a circulation channel (120), a printing channel (130) and a paper output channel (140), wherein the inlet of the printing channel (130) is connected to the outlet of the photo paper tray (110) and the outlet of the circulation channel (120); The control element (200) is movably mounted on the housing (100) and controls the outlet of the printing channel (130) to communicate with the inlet of the circulation channel (120) or the inlet of the paper output channel (140).

2. The thermal sublimation printer according to claim 1, characterized in that, The axis of the circulation channel (120) is configured as an arc that bulges away from the printing channel (130).

3. The thermal sublimation printer according to claim 2, characterized in that, One end of the control element (200) is hinged to the outer wall of the housing (100), and the other end is opposite to the inlet of the paper output channel (140) or the inlet of the circulation channel (120).

4. The thermal sublimation printer according to claim 3, characterized in that, The control unit (200) includes a hinge (210), a connecting part (220), and a control part (230); The hinge (210) is hinged to the housing (100), and the two ends of the connecting part (220) are respectively connected to the hinge (210) and the control part (230). The control part (230) is opposite to the inlet of the paper output channel (140) or opposite to the inlet of the circulation channel (120). The control unit (230) is provided with a guide slope (231). When the control unit (230) is opposite to the inlet of the paper output channel (140), the guide slope (231) is flush with the side wall of the circulation channel (120).

5. The thermal sublimation printer according to claim 2, characterized in that, The thermal sublimation printer also includes a drive wheel (300), which is mounted on the housing (100) and whose axis is perpendicular to the axis of the circulation channel (120); The rim of the drive wheel (300) extends into the circulation channel (120), and the tangential direction of the rotation direction of the drive wheel (300) is the same as the movement direction of the paper in the circulation channel (120).

6. The thermal sublimation printer according to claim 5, characterized in that, The drive wheel (300) is located above the circulation channel (120).

7. The thermal sublimation printer according to claim 5, characterized in that, Multiple transmission wheels (300) are provided, and the multiple transmission wheels (300) are spaced apart along the extension direction of the circulation channel (120).

8. The thermal sublimation printer according to claim 5, characterized in that, The dye-sublimation printer also includes a control board (400), which is signal-connected to the control unit (200) and the drive wheel (300).

9. The thermal sublimation printer according to any one of claims 1-8, characterized in that, The housing (100) includes a first housing (150), a second housing (160), and a third housing (170); The first housing (150) is provided with the photo paper box (110), and the second housing (160) is located on one side of the first housing (150) and is provided with the printing channel (130) and the paper output channel (140). The end of the printing channel (130) of the second housing (160) opposite to the paper output channel (140) is connected to the photo paper box (110). The third housing (170) is located above the second housing (160) and together with the second housing (160) forms a receiving area for accommodating the ribbon; the side wall of the third housing (170) is provided with the circulation channel (120).

10. The thermal sublimation printer according to claim 9, characterized in that, The dye-sublimation printer also includes a printhead assembly (510) and a printing roller (520); The top wall of the second housing (160) is provided with a first opening, and the bottom wall of the second housing (160) is provided with a second opening; The printhead assembly (510) is mounted above the second housing (160) and its bottom extends into the first opening. The printing roller (520) is mounted below the second housing (160) and its top extends into the second opening.

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