Printer

Abstract

The utility model provides a printer, including ink box body, first nozzle brush and second nozzle brush, the bottom of ink box body is equipped with the nozzle, first nozzle brush and second nozzle brush are along the length direction interval of nozzle setting, the top of first nozzle brush is equipped with first brush surface, the top of second nozzle brush is equipped with second brush surface, and first brush surface and second brush surface are used for cleaning the ink of the bottom of nozzle, first nozzle brush includes first part and second part, and first part and second part are along the width direction interval of nozzle setting, first brush surface is located in the top of second part, when first brush surface and the bottom of nozzle contact, the top of first part and the part of the bottom of ink box body close to nozzle abut, and in vertical direction, first brush surface projects to the surface where nozzle is located, and the projection length of first brush surface in the width direction of nozzle can completely cover the width of nozzle.

Description

Technical Field

[0001] This utility model relates to the field of printing, and in particular to a printer. Background Technology

[0002] In inkjet printing technology, the printer precisely ejects ink from tiny nozzles within the printhead, creating patterns or text on the printing medium. This process relies on a sophisticated pressure control mechanism within the printhead. When a printing task is performed, piezoelectric elements or heaters within the printhead generate instantaneous pressure, forcing the ink to overcome its surface tension and exit from the nozzle as droplets.

[0003] If the printer printhead is not cleaned promptly after a printing job, residual ink can dry and solidify at the nozzles due to solvent evaporation, causing partial or complete clogging. This not only leads to output quality issues such as broken lines, missing colors, blurry text, or image stripes in subsequent prints, but also increases the load on the printhead drive system due to clogging. Over time, this can cause irreversible damage to the printhead's piezoelectric or heating elements, shortening the printhead's lifespan. Furthermore, frequent clogging forces more cleaning cycles, which not only consumes a large amount of ink but also accelerates printhead aging due to repeated mechanical movements, ultimately significantly increasing equipment maintenance costs and consumable expenses. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a printer.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] This utility model discloses a printer, which includes an ink cartridge body, a first printhead brush and a second printhead brush. The bottom of the ink cartridge body is provided with a printhead. The first printhead brush and the second printhead brush are arranged at intervals along the length direction of the printhead. The top of the first printhead brush is provided with a first brush surface and the top of the second printhead brush is provided with a second brush surface. The first brush surface and the second brush surface are used to clean the ink at the bottom of the printhead.

[0007] The first printhead brush includes a first part and a second part, which are spaced apart along the width direction of the printhead. The first brush surface is located on the top of the second part. When the first brush surface contacts the bottom of the printhead, the top of the first part abuts against the part of the bottom of the ink cartridge body near the printhead. In the vertical direction, the first brush surface projects onto the surface where the printhead is located, and the projection length of the first brush surface in the width direction of the printhead can completely cover the width of the printhead.

[0008] In this solution, ink may splash or leak during printing, causing ink to accumulate at the bottom of the nearby ink cartridge. By setting the first part of the first printhead brush to abut against the bottom of the ink cartridge, the accumulated ink near the printhead can be cleaned. The top of the second part has a first brush surface that can directly clean the bottom of the printhead, extending the cleaning range from the bottom of the printhead to the bottom of the nearby ink cartridge, thus expanding the cleaning coverage area. The projected length of the first brush surface in the width direction of the printhead completely covers the width of the printhead, ensuring that the bottom of the printhead is thoroughly cleaned. The first and second printhead brushes are spaced apart along the length of the printhead, enabling segmented continuous cleaning of the bottom of the printhead, improving the thoroughness of the cleaning and enhancing the quality and stability of the print output. At the same time, this structural design avoids the need for frequent cleaning cycles due to increased clogging, saving ink consumption, reducing the drive load and mechanical wear of the printhead, helping to extend the life of the printhead, and ultimately reducing the printer's maintenance costs and consumable expenses.

[0009] Preferably, the first printhead brush further includes a third part, which is spaced apart from the second part on the side away from the first part along the width direction of the printhead. When the first brush surface contacts the bottom of the printhead, the top of the third part abuts against the bottom of the ink cartridge body near the printhead.

[0010] In this solution, the aforementioned structural form is adopted. By setting a third part on the first printhead brush, and having this third part abut against the bottom of the ink cartridge body near the printhead, the bottom of the ink cartridge body on the other side of the printhead can be cleaned. This arrangement, in conjunction with the first and second parts, allows the first printhead brush to clean the bottom of the ink cartridge body simultaneously from both sides in the printhead width direction, while the second brush face of the second part cleans the bottom of the printhead, further expanding the cleaning range of a single operation and improving cleaning efficiency.

[0011] Preferably, the second brush surface projects onto the first nozzle brush, and the projection of the second brush surface in the width direction of the nozzle can completely cover the gap between the second part and the first part in the width direction of the nozzle.

[0012] In this solution, the above-mentioned structure is adopted. By projecting the second brush surface onto the width of the printhead, the gap between the second part and the first part is completely covered. This ensures that during the cleaning process, the area at the bottom of the printhead corresponding to the gap can also be effectively cleaned by the second brush surface, preventing ink residue in the area and thus improving the completeness and thoroughness of cleaning the bottom of the printhead.

[0013] Preferably, the second brush surface projects onto the first nozzle brush, and the projection of the second brush surface in the width direction of the nozzle can completely cover the gap between the second part and the first part in the width direction of the nozzle.

[0014] In this solution, the above-mentioned structure allows the projection of the second brush surface in the width direction of the printhead to completely cover the gap between the second part and the first part, ensuring that the area at the bottom of the printhead directly opposite the gap can also be cleaned by the second brush surface, preventing ink from accumulating there, thereby ensuring the completeness of cleaning across the entire width range of the bottom of the printhead.

[0015] Preferably, the first nozzle brush is made of soft silicone, and the top of the second part has a first end and a second end in the length direction of the nozzle. The first end is higher than the second end in the vertical direction, and the first end and the second end are connected by a first arc surface. The center of the first arc surface is located on the side of the first arc surface away from the nozzle. When the first nozzle cleans the nozzle, in the vertical direction, one of the first arc surface and the first end contacts the bottom of the nozzle.

[0016] And / or, the second nozzle brush is made of soft silicone, and the top of the second nozzle brush has a third end and a fourth end in the length direction of the nozzle, the third end being higher than the fourth end in the vertical direction, and the third end and the fourth end being connected by a second arc surface, the center of the second arc surface being located on the side of the second arc surface away from the nozzle; when the first nozzle cleans the nozzle, in the vertical direction, one of the second arc surface and the third end is in contact with the bottom of the nozzle.

[0017] In this solution, the aforementioned structural form is adopted. By using a first and second nozzle brush made of soft silicone material, the second part and the second nozzle brush can elastically deform upon contact with the bottom of the nozzle. This deformation helps the second part and the second nozzle brush better conform to the contour of the nozzle bottom, improving the cleaning effect. For the first nozzle brush, when the first curved surface contacts the bottom of the nozzle, it can be used to clean a larger area, improving cleaning efficiency; when the first end contacts the bottom of the nozzle, it can be used to achieve more concentrated local cleaning, enabling the first nozzle brush to perform both large-area cleaning and local fine cleaning. Similarly, for the second nozzle brush, when the second curved surface contacts the bottom of the nozzle, it can perform large-area cleaning; when the third end contacts the bottom of the nozzle, it can perform local fine cleaning.

[0018] Preferably, the first arc surface and the second arc surface are arranged opposite to each other; the nozzle and the first nozzle brush and the second nozzle brush can generate relative reciprocating motion in the length direction of the nozzle, and the first arc surface and the third end simultaneously contact the nozzle in the vertical direction, or the second arc surface and the first end simultaneously contact the nozzle in the vertical direction.

[0019] In this solution, the aforementioned structural form is adopted. By setting the first and second arc surfaces opposite to each other and causing the nozzle to reciprocate relative to the first and second nozzle brushes, a combination of two cleaning modes can be achieved in a single reciprocating motion. When the first arc surface and the third end simultaneously contact the nozzle, the first nozzle brush performs a large-area cleaning while the second nozzle brush performs a localized, fine cleaning. When the second arc surface and the first end simultaneously contact the nozzle, the second nozzle brush performs a large-area cleaning while the first nozzle brush performs a localized, fine cleaning. This alternating combination ensures that the bottom of the nozzle receives both large-area, efficient cleaning and localized, concentrated cleaning in a single reciprocating motion, thereby simultaneously improving cleaning efficiency and thoroughness within a single stroke.

[0020] Preferably, the printer further includes a printer body with a receiving cavity, wherein the ink cartridge body, the first printhead brush, and the second printhead brush are disposed within the receiving cavity;

[0021] The printer further includes an external gear and a rack. The external gear is rotatably connected to the side wall of the printer body that forms the receiving cavity. The gear meshes with the rack, and the rack extends along the extension direction of the printhead. The first printhead brush and the second printhead brush are connected to one end of the rack along the length direction of the printhead.

[0022] In this solution, the aforementioned structural form is adopted. Through the meshing of the external gear and the rack, the rotational motion of the external gear can be converted into the linear motion of the rack along the extension direction of the nozzle. The rack is connected to the first and second nozzle brushes, thereby driving the first and second nozzle brushes to reciprocate along the length of the nozzle, thus providing power for the cleaning motion of the first and second nozzle brushes and ensuring that the cleaning process can cover the entire length of the nozzle.

[0023] Preferably, the printer further includes a connecting portion, one end of which is connected to the rack in the vertical direction; the other end of which is connected to the first printhead brush and the second printhead brush.

[0024] The connecting portion and the sidewall of the printer body that forms the receiving cavity, one of which is provided with a guide and the other is provided with a slider that is slidably connected to the guide, the guide extending along the length direction of the printhead.

[0025] In this solution, the above-mentioned structural form is adopted, and the guide and the sliding member are slidably connected along the length of the nozzle, which can guide and limit the movement of the connection part and prevent the first nozzle brush and the second nozzle brush from deviating or shaking during the movement.

[0026] Preferably, the guide member includes a first guide portion, a second guide portion, and a third guide portion. The first guide portion extends along the length direction of the nozzle. The second guide portion and the third guide portion are respectively connected to both ends of the first guide portion along the length direction of the nozzle. One end of the second guide portion is connected to the first guide portion, and the other end of the second guide portion extends downward to form a first end at the end of the second guide portion away from the first guide portion. One end of the third guide portion is connected to the end of the first guide portion away from the second guide portion, and the other end of the third guide portion extends downward to form a second end at the end of the third guide portion away from the first guide portion. When the slider engages with the first guide portion, the first nozzle brush and the second nozzle brush contact the nozzle in the vertical direction. When the slider moves to the second end or the third end, the top of the first nozzle brush or the second nozzle brush has a gap with the bottom of the nozzle in the vertical direction.

[0027] The rotating shaft of the connecting part is rotatably connected to the rack. When the first spray brush head and the second spray brush are not in contact with the spray head in the vertical direction, there is a gap between the bottom of the connecting part and the top of the rack in the vertical direction. In the plane where the rack is located, the extending direction of the rotating shaft is perpendicular to the extending direction of the rack.

[0028] In this solution, the aforementioned structural form is adopted. The rotating shaft of the connecting part is rotatably connected to the rack, allowing the first and second nozzle brushes to adaptively rotate when in contact with the bottom of the nozzle. This ensures the first and second nozzle brushes better conform to the bottom contour of the nozzle, and the elastic deformation of the soft silicone material enhances the cleaning effect. When the sliding member engages with the first guide part, the first and second nozzle brushes contact the bottom of the nozzle in the vertical direction, achieving the cleaning function. When the sliding member moves to the second or third end, a gap is created between the top of the first and second nozzle brushes and the bottom of the nozzle in the vertical direction, separating the first and second nozzle brushes from the nozzle. This allows the first and second nozzle brushes to return to their initial position and shape, preparing for the next cleaning operation. The guide part enables reliable switching between the first and second nozzle brushes in the cleaning and non-cleaning positions, ensuring the periodicity and stability of the cleaning operation.

[0029] Preferably, the first printhead brush and the second printhead brush are located in the non-printing area of ​​the receiving cavity;

[0030] The printer includes a drive unit for driving the ink cartridge body to move from the printing area to the non-printing area after printing is completed, so that the printhead moves to directly above the first printhead brush and the second printhead brush.

[0031] In this solution, the above-mentioned structure allows the printhead cleaning process to be performed automatically after printing without manual intervention, while avoiding residual ink contamination of the printing media during the cleaning process.

[0032] The positive and progressive effects of this utility model are as follows:

[0033] Because ink may splash or leak during printing, ink can accumulate on the bottom of the nearby ink cartridge. By positioning the first part of the first printhead brush against the bottom of the ink cartridge, this accumulated ink can be cleaned. The top of the second part has a first brush surface that directly cleans the bottom of the printhead, extending the cleaning area from the bottom of the printhead to the bottom of the nearby ink cartridge, thus expanding the cleaning coverage. The projected length of the first brush surface in the printhead width direction completely covers the width of the printhead, ensuring complete cleaning of the printhead bottom. The first and second printhead brushes are spaced apart along the length of the printhead, enabling segmented continuous cleaning of the printhead bottom, improving the thoroughness of cleaning and enhancing print quality and stability. Furthermore, this structural design avoids the need for frequent cleaning cycles due to increased clogging, saving ink consumption, reducing the drive load and mechanical wear on the printhead, extending its lifespan, and ultimately reducing printer maintenance costs and consumable expenses. Attached Figure Description

[0034] Figure 1 This is a partial structural schematic diagram (I) of the printer according to an embodiment of the present utility model.

[0035] Figure 2 This is a partial structural schematic diagram (II) of the printer according to an embodiment of the present utility model.

[0036] Figure 3 This is a partial structural schematic diagram (III) of the printer according to an embodiment of the present utility model.

[0037] Figure 4 This is a partial structural schematic diagram (four) of the printer according to an embodiment of the present utility model.

[0038] Figure 5 This is a partial structural schematic diagram (V) of the printer according to an embodiment of the present utility model.

[0039] Figure 6 This is a schematic diagram of the structure of the ink cartridge body and the printhead after they are combined according to an embodiment of the present utility model.

[0040] Explanation of reference numerals in the attached figures:

[0041] Ink cartridge body 1

[0042] First nozzle brush 2

[0043] Part 1, Chapter 21

[0044] Part 2, 22

[0045] First end 221

[0046] Second end 222

[0047] First arc surface 223

[0048] Part 3, 23

[0049] Sprayer brush body 24

[0050] First brushing surface 25

[0051] Second nozzle brush 3

[0052] Second brushing surface 31

[0053] Third end 32

[0054] Fourth end 33

[0055] Second arc surface 34

[0056] Nozzle 4

[0057] External gear 5

[0058] rack 6

[0059] Connecting part 7

[0060] Connecting shaft 71

[0061] Guide component 8

[0062] First Guiding Section 81

[0063] Second guide section 82

[0064] Third Guiding Section 83

[0065] Slider 9 Detailed Implementation

[0066] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0067] like Figures 1 to 6As shown, this embodiment provides a printer, which includes an ink cartridge body 1, a first printhead brush 2, and a second printhead brush 3. A printhead 4 is located at the bottom of the ink cartridge body 1. The first printhead brush 2 and the second printhead brush 3 are spaced apart along the length of the printhead 4. The top of the first printhead brush 2 has a first brush surface 25, and the top of the second printhead brush 3 has a second brush surface 31. The first brush surface 25 and the second brush surface 31 are used to clean the ink from the bottom of the printhead 4. The first printhead brush 2 includes a printhead brush body 24, a first part 21, and a second part 22. The printhead 4... The top of the brush body 24 is connected to a first part 21 and a second part 22, which are spaced apart along the width direction of the printhead 4. A first brush surface 25 is located on top of the second part 22. When the first brush surface 25 contacts the bottom of the printhead 4, the top of the first part 21 abuts against the portion of the bottom of the ink cartridge body 1 near the printhead 4, and in the vertical direction, the first brush surface 25 projects onto the surface where the printhead 4 is located. The projected length of the first brush surface 25 in the width direction of the printhead 4 can completely cover the width of the printhead 4. Since ink may splash or leak when the printhead 4 performs a printing task, ink will accumulate on the bottom of the ink cartridge body 1 near it. By setting the first part 21 of the first printhead brush 2 to abut against the bottom of the ink cartridge body 1, the ink accumulated on the bottom of the ink cartridge body 1 near the printhead 4 can be cleaned. The top of the second part 22 is provided with the first brush surface 25, which can directly clean the bottom of the printhead 4, so that the cleaning range extends from the bottom of the printhead 4 to the bottom of the ink cartridge body 1 nearby, expanding the cleaning coverage area. The projected length of the first brush surface 25 in the width direction of the printhead 4 completely covers the width of the printhead 4, ensuring that the bottom of the printhead 4 is thoroughly cleaned. The first printhead brush 2 and the second printhead brush 3 are spaced apart along the length direction of the printhead 4, enabling segmented continuous cleaning of the bottom of the printhead 4, improving the thoroughness of cleaning and enhancing the quality and stability of print output. At the same time, this structural design avoids the need for frequent cleaning cycles due to increased clogging, saving ink consumption, reducing the drive load and mechanical wear of the printhead 4, helping to extend the lifespan of the printhead 4, and ultimately reducing printer maintenance costs and consumable expenses.

[0068] It should be noted that by projecting the first brush surface 25 onto the surface where the printhead 4 is located, and ensuring that the projected length of the first brush surface 25 in the width direction of the printhead 4 can completely cover the width of the printhead 4, it means that the size design of the first brush surface 25 in the width direction of the printhead 4 is sufficient to cover the entire width range of the printhead 4. This ensures that when the first brush surface 25 contacts the bottom of the printhead 4 and cleans it, its cleaning range can completely cover all areas of the printhead 4 in the width direction, avoiding ink residue on the edges or local areas of the printhead 4 due to insufficient cleaning range. This ensures that the entire width of the bottom of the printhead 4 is effectively cleaned, improving the comprehensiveness and reliability of the cleaning.

[0069] In addition, the gap between the first part 21 and the second part 22 in the width direction of the nozzle 4 can be adjusted according to actual needs, and is not limited here.

[0070] like Figures 1 to 5 As shown, the first printhead brush 2 also includes a third part 23, which is connected to the top of the printhead brush body 24. The third part 23 is spaced along the width direction of the printhead 4, positioned at intervals on the side of the second part 22 away from the first part 21. When the first brush surface 25 contacts the bottom of the printhead 4, the top of the third part 23 abuts against the portion of the bottom of the ink cartridge body 1 closest to the printhead 4. Using this structure, by providing the third part 23 on the first printhead brush 2, and ensuring that the third part 23 abuts against the portion of the bottom of the ink cartridge body 1 closest to the printhead 4, the bottom of the ink cartridge body 1 on the other side of the printhead 4 can be cleaned. This arrangement, in conjunction with the first part 21 and the second part 22, allows the first printhead brush 2 to clean the bottom of the ink cartridge body 1 simultaneously from both sides of the printhead 4's width direction, while the second brush surface 31 of the second part 22 cleans the bottom of the printhead 4, further expanding the cleaning range of a single operation and improving cleaning efficiency.

[0071] In actual use, the gap between the second part 22 and the third part 23 in the width direction of the nozzle 4 can be adjusted according to actual needs, and is not limited here.

[0072] The second brush surface 31 projects onto the first printhead brush 2. The projection of the second brush surface 31 in the width direction of the printhead 4 can completely cover the gap between the second part 22 and the first part 21 in the width direction of the printhead 4. With the above structure, by having the projection of the second brush surface 31 in the width direction of the printhead 4 completely cover the gap between the second part 22 and the first part 21, it can be ensured that during the cleaning process, the area at the bottom of the printhead 4 corresponding to the gap can also be effectively cleaned by the second brush surface 31, avoiding ink residue in this area, thereby improving the completeness and thoroughness of cleaning the bottom of the printhead 4.

[0073] The second brush surface 31 projects onto the first printhead brush 2. The projection of the second brush surface 31 in the width direction of the printhead 4 completely covers the gap between the second part 22 and the first part 21 in the width direction of the printhead 4. This structure ensures that the projection of the second brush surface 31 in the width direction of the printhead 4 completely covers the gap between the second part 22 and the first part 21, guaranteeing that the area at the bottom of the printhead 4 directly opposite this gap can also be cleaned by the second brush surface 31, preventing ink accumulation and thus ensuring the completeness of cleaning across the entire width of the bottom of the printhead 4.

[0074] It should be specifically noted that the second brush surface 31 projects onto the first nozzle brush 2, and the projection of the second nozzle brush 3 can completely cover the width of the second part 22 in the direction of the nozzle 4, the gap between the first part 21 and the second part 22 in the direction of the nozzle 4, and the gap between the second part 22 and the third part 23 in the direction of the nozzle 4.

[0075] like Figures 1 to 5 As shown, the first nozzle brush 2 is made of soft silicone. The top of the second part 22 has a first end 221 and a second end 222 along the length of the nozzle 4. The first end 221 is higher than the second end 222 in the vertical direction, and the first end 221 and the second end 222 are connected by a first arc surface 223. The center of the first arc surface 223 is located on the side of the first arc surface 223 away from the nozzle 4. When the first nozzle 4 cleans the nozzle 4, in the vertical direction, one of the first arc surface 223 and the first end 221 is connected to the nozzle. The bottom of the nozzle 4 is in contact with the nozzle; the second nozzle brush 3 is made of soft silicone. The top of the second nozzle brush 3 has a third end 32 and a fourth end 33 along the length of the nozzle 4. The third end 32 is higher than the fourth end 33 in the vertical direction, and the third end 32 and the fourth end 33 are connected by a second arc surface 34. The center of the second arc surface 34 is located on the side of the second arc surface 34 away from the nozzle 4. When the first nozzle 4 cleans the nozzle 4, one of the second arc surface 34 and the third end 32 contacts the bottom of the nozzle 4 in the vertical direction. With the above structure, by using the first nozzle brush 2 and the second nozzle brush 3 made of soft silicone, the second part 22 and the second nozzle brush 3 can undergo elastic deformation when they contact the bottom of the nozzle 4. This deformation helps the second part 22 and the second nozzle brush 3 to better conform to the bottom contour of the nozzle 4, improving the cleaning effect. For the first nozzle brush 2, when the first curved surface 223 contacts the bottom of the nozzle 4, it can clean a larger area using the first curved surface 223, improving cleaning efficiency; when the first end 221 contacts the bottom of the nozzle 4, it can achieve more concentrated local cleaning using the first end 221, enabling the first nozzle brush 2 to perform both large-area cleaning and local fine cleaning. Similarly, for the second nozzle brush 3, when the second curved surface 34 contacts the bottom of the nozzle 4, it can perform large-area cleaning; when the third end 32 contacts the bottom of the nozzle 4, it can perform local fine cleaning.

[0076] In other embodiments, only the first nozzle brush 2 or only the second nozzle brush 3 may have the above-mentioned configuration, which will not be specified here.

[0077] like Figures 2 to 5As shown, the first arc surface 223 and the second arc surface 34 are arranged opposite to each other; the nozzle 4 and the first nozzle brush 2 and the second nozzle brush 3 can generate relative reciprocating motion in the length direction of the nozzle 4. The first arc surface 223 and the third end 32 simultaneously contact the nozzle 4 in the vertical direction, or the second arc surface 34 and the first end 221 simultaneously contact the nozzle 4 in the vertical direction. Using the above structural form, by arranging the first arc surface 223 and the second arc surface 34 opposite to each other, and causing the nozzle 4 to generate relative reciprocating motion with the first nozzle brush 2 and the second nozzle brush 3, a combination of two cleaning modes can be achieved in one reciprocating motion. When the first arc surface 223 and the third end 32 simultaneously contact the nozzle 4, the first nozzle brush 2 performs large-area cleaning while the second nozzle brush 3 performs local fine cleaning. When the second arc surface 34 and the first end 221 simultaneously contact the nozzle 4, the second nozzle brush 3 performs large-area cleaning while the first nozzle brush 2 performs local fine cleaning. This alternating combination ensures that the bottom of nozzle 4 can receive both large-area efficient cleaning and localized concentrated cleaning in a single reciprocating motion, thereby simultaneously improving cleaning efficiency and thoroughness within a single stroke.

[0078] The printer also includes a printer body with a receiving cavity, in which the ink cartridge body 1, the first printhead brush 2, and the second printhead brush 3 are disposed. The printer further includes an external gear 5 and a rack 6. The external gear 5 is rotatably connected to the side wall of the printer body surrounding the receiving cavity. The gear meshes with the rack 6, which extends along the extension direction of the printhead 4. The first printhead brush 2 and the second printhead brush 3 are connected to one end of the rack 6 along the length of the printhead 4. With this structure, the rotational motion of the external gear 5 is converted into linear motion of the rack 6 along the extension direction of the printhead 4 through the meshing of the external gear 5 and the rack 6. The rack 6, connected to the first printhead brush 2 and the second printhead brush 3, drives the first printhead brush 2 and the second printhead brush 3 to reciprocate along the length of the printhead 4, thus providing power for the cleaning motion of the first printhead brush 2 and the second printhead brush 3, ensuring that the cleaning process covers the entire length of the printhead 4.

[0079] like Figures 2 to 5 As shown, the printer also includes a connecting part 7, one end of which is connected to the rack 6 in the vertical direction; the other end of which is connected to the first printhead brush 2 and the second printhead brush 3. The connecting part 7 and the sidewall of the printer body forming the receiving cavity are provided with a guide 8 and a slider 9 slidably connected to the guide 8. The guide 8 extends along the length of the printhead 4. With this structure, the guide 8 and the slider 9 are slidably connected along the length of the printhead 4, which guides and limits the movement of the connecting part 7, preventing the first printhead brush 2 and the second printhead brush 3 from shifting or shaking during movement.

[0080] In practical use, the connecting part 7 is injection molded with the first nozzle brush 2 and the second nozzle brush 3; while the connecting part 7 and the rack 6 can be connected by means of adhesive or other methods.

[0081] like Figure 1 and Figure 4 As shown, the guide member 8 includes a first guide portion 81, a second guide portion 82, and a third guide portion 83. The first guide portion 81 extends along the length direction of the nozzle 4. The second guide portion 82 and the third guide portion 83 are respectively connected to both ends of the first guide portion 81 along the length direction of the nozzle 4. One end of each of the second guide portion 82 and the third guide portion 83 is connected to the first guide portion 81. The other end of the second guide portion 82 extends downward to form a first end at the end of the second guide portion 82 away from the first guide portion 81. The other end of the third guide portion 83... Extending downwards, a second end is formed at the end of the third guide portion 83 away from the first guide portion 81. When the slider 9 engages with the first guide portion 81, the first nozzle brush 2 and the second nozzle brush 3 contact the nozzle 4 in the vertical direction. When the slider 9 moves to the second or third end, the top of the first nozzle brush 2 or the second nozzle brush 3 has a gap in the vertical direction with the bottom of the nozzle 4. The rotating shaft of the connector is rotatably connected to the rack 6, wherein in the plane of the rack 6, the extending direction of the rotating shaft is perpendicular to the extending direction of the rack 6. With the above structure, the rotating shaft of the connector 7 is rotatably connected to the rack 6, allowing the first nozzle brush 2 and the second nozzle brush 3 to rotate adaptively when in contact with the bottom of the nozzle 4, so that the first nozzle brush 2 and the second nozzle brush 3 better conform to the bottom contour of the nozzle 4. At the same time, the elastic deformation of the soft silicone material enhances the cleaning effect. When the sliding member 9 engages with the first guide part 81, the first nozzle brush 2 and the second nozzle brush 3 contact the bottom of the nozzle 4 in the vertical direction, thus cleaning the nozzle 4. When the sliding member 9 moves to the second or third end, a gap is created between the top of the first nozzle brush 2 and the second nozzle brush 3 and the bottom of the nozzle 4 in the vertical direction, allowing the first nozzle brush 2 and the second nozzle brush 3 to separate from the nozzle 4. This enables the first nozzle brush 2 and the second nozzle brush 3 to return to their initial position and shape, preparing them for the next cleaning operation. The guide part 8 enables reliable switching between the first nozzle brush 2 and the second nozzle brush 3 in the cleaning position and the non-cleaning position, ensuring the periodicity and stability of the cleaning operation.

[0082] In this embodiment, the first guide portion 81, the second guide portion 82, and the third guide portion 83 are all slides, and the slider 9 is a slide rod. In other embodiments, the types of guides 8 and sliders 9 can be adjusted according to actual needs, and are not limited here.

[0083] In practical use, the rack 6 is provided with a receiving groove, and the rotating shaft is engaged in the receiving groove and rotatably connected to the wall of the receiving groove. In other embodiments, the form in which the rack 6 and the rotating shaft are rotatably connected can be adjusted according to actual needs, and is not limited here.

[0084] It should be specifically noted that the first guide section 81 extends horizontally along the length of the nozzle 4, the second guide section 82 starts from one end of the first guide section 81, and its extension trajectory includes both downward and outward directions, forming a spatially gradually opening transition line. The third guide section 83 extends from the other end of the first guide section 81 with the same characteristics, and the three guide sections together form a composite trajectory.

[0085] The first printhead brush 2 and the second printhead brush 3 are located in the non-printing area of ​​the receiving cavity. The printer includes a drive unit that, after printing, drives the ink cartridge body 1 from the printing area to the non-printing area, so that the printhead 4 moves directly above the first printhead brush 2 and the second printhead brush 3. This structural design allows the printhead 4 cleaning process to be performed automatically after printing without manual intervention, while also preventing residual ink from contaminating the printing media during the cleaning process.

[0086] It should be specifically noted that the aforementioned printing area is a specific region within the printer body's housing cavity used for performing printing tasks. Within this area, the printhead 4 at the bottom of the ink cartridge body 1 sprays ink onto the printing medium to form a pattern. The non-printing area is the region within the printer body's housing cavity other than the printing area. This area does not directly participate in the printing operation and is specifically used for cleaning and maintaining the printhead 4. By placing the first printhead brush 2 and the second printhead brush 3 in the non-printing area, and driving the ink cartridge body 1 from the printing area to the non-printing area after printing, the printhead 4 is moved directly above the first printhead brush 2 and the second printhead brush 3. This achieves spatial separation of the printing and cleaning functions, preventing residual ink from contaminating the printing medium during the cleaning process. It also ensures that the printhead 4 is maintained promptly even when not in operation, which is beneficial for maintaining the long-term stability of the printhead 4 and the reliability of print quality.

[0087] In a specific implementation, two non-printing areas are provided, symmetrically distributed on both sides of the printing area. Each non-printing area is equipped with a first printhead brush 2 and a second printhead brush 3. Two ink cartridge bodies 1 are also provided. After the printing job is completed, the driving unit drives the two ink cartridge bodies 1 to move towards their respective two non-printing areas, causing the two printheads 4 to move directly above their respective first printhead brush 2 and second printhead brush 3, thereby simultaneously completing the cleaning operation of the two printheads 4.

[0088] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A printer, characterized in that, The printer includes an ink cartridge body, a first printhead brush, and a second printhead brush. The bottom of the ink cartridge body is provided with a printhead. The first printhead brush and the second printhead brush are spaced apart along the length of the printhead. The top of the first printhead brush is provided with a first brush surface, and the top of the second printhead brush is provided with a second brush surface. The first brush surface and the second brush surface are used to clean the ink at the bottom of the printhead. The first printhead brush includes a first part and a second part, which are spaced apart along the width direction of the printhead. The first brush surface is located on the top of the second part. When the first brush surface contacts the bottom of the printhead, the top of the first part abuts against the part of the bottom of the ink cartridge body near the printhead. In the vertical direction, the first brush surface projects onto the surface where the printhead is located, and the projection length of the first brush surface in the width direction of the printhead can completely cover the width of the printhead.

2. The printer as described in claim 1, characterized in that, The first printhead brush also includes a third part, which is spaced apart from the second part on the side away from the first part along the width direction of the printhead. When the first brush surface contacts the bottom of the printhead, the top of the third part abuts against the part of the bottom of the ink cartridge body near the printhead.

3. The printer as described in claim 2, characterized in that, The second brush surface projects onto the first nozzle brush, and the projection of the second brush surface in the width direction of the nozzle can completely cover the gap between the second part and the first part in the width direction of the nozzle.

4. The printer as described in claim 1 or 3, characterized in that, The second brush surface projects onto the first nozzle brush, and the projection of the second brush surface in the width direction of the nozzle can completely cover the gap between the second part and the first part in the width direction of the nozzle.

5. The printer as described in claim 2, characterized in that, The first nozzle brush is made of soft silicone. The top of the second part has a first end and a second end along the length of the nozzle. The first end is higher than the second end in the vertical direction, and the first end and the second end are connected by a first arc surface. The center of the first arc surface is located on the side of the first arc surface away from the nozzle. When the first nozzle cleans the nozzle, one of the first arc surface and the first end contacts the bottom of the nozzle in the vertical direction. And / or, the second nozzle brush is made of soft silicone, and the top of the second nozzle brush has a third end and a fourth end in the length direction of the nozzle, the third end being higher than the fourth end in the vertical direction, and the third end and the fourth end being connected by a second arc surface, the center of the second arc surface being located on the side of the second arc surface away from the nozzle; when the first nozzle cleans the nozzle, in the vertical direction, one of the second arc surface and the third end is in contact with the bottom of the nozzle.

6. The printer as described in claim 5, characterized in that, The first arc surface and the second arc surface are arranged opposite to each other; the nozzle and the first nozzle brush and the second nozzle brush can generate relative reciprocating motion in the length direction of the nozzle, and the first arc surface and the third end simultaneously contact the nozzle in the vertical direction, or the second arc surface and the first end simultaneously contact the nozzle in the vertical direction.

7. The printer as described in claim 6, characterized in that, The printer also includes a printer body with a receiving cavity, wherein the ink cartridge body, the first printhead brush, and the second printhead brush are disposed within the receiving cavity; The printer further includes an external gear and a rack. The external gear is rotatably connected to the side wall of the printer body that forms the receiving cavity. The gear meshes with the rack, and the rack extends along the extension direction of the printhead. The first printhead brush and the second printhead brush are connected to one end of the rack along the length direction of the printhead.

8. The printer as described in claim 7, characterized in that, The printer further includes a connecting part, one end of which is connected to the rack in the vertical direction; the other end of which is connected to the first printhead brush and the second printhead brush in the vertical direction. The connecting portion and the sidewall of the printer body that forms the receiving cavity, one of which is provided with a guide and the other is provided with a slider that is slidably connected to the guide, the guide extending along the length direction of the printhead.

9. The printer as described in claim 8, characterized in that, The guide member includes a first guide portion, a second guide portion, and a third guide portion. The first guide portion extends along the length direction of the nozzle. The second guide portion and the third guide portion are respectively connected to both ends of the first guide portion along the length direction of the nozzle. One end of the second guide portion is connected to the first guide portion, and the other end of the second guide portion extends downward to form a first end at the end of the second guide portion away from the first guide portion. One end of the third guide portion is connected to the end of the first guide portion away from the second guide portion, and the other end of the third guide portion extends downward to form a second end at the end of the third guide portion away from the first guide portion. When the slider engages with the first guide portion, the first nozzle brush and the second nozzle brush are in contact with the nozzle in the vertical direction. When the slider moves to the second end or the third end, the top of the first nozzle brush or the second nozzle brush has a gap with the bottom of the nozzle in the vertical direction. The rotating shaft of the connecting part is rotatably connected to the rack. When the first spray brush head and the second spray brush are not in contact with the spray head in the vertical direction, there is a gap between the bottom of the connecting part and the top of the rack in the vertical direction. In the plane where the rack is located, the extending direction of the rotating shaft is perpendicular to the extending direction of the rack.

10. The printer as claimed in claim 7, characterized in that, The first printhead brush and the second printhead brush are located in the non-printing area of ​​the receiving cavity; The printer includes a drive unit for driving the ink cartridge body to move from the printing area to the non-printing area after printing is completed, so that the printhead moves to directly above the first printhead brush and the second printhead brush.

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