Powder box, powder supply system and printer

Abstract

The invention relates to the technical field of printers, in particular to a powder box, a powder supply system and a printer. The powder box comprises a first shell assembly, a second shell assembly and a supporting assembly. The second shell assembly comprises two powder scraping units and a shell unit; the shell unit comprises a first bin shell, a connecting part, a second bin shell and two side walls; the first bin shell, the connecting part and the second bin shell are sequentially connected in the width direction of the first bin shell. The side walls are connected with the two ends of the first bin shell, the connecting part and the second bin shell correspondingly. The first shell assembly is connected with the first bin shell, the second bin shell and the side wall, and a powder storage space is defined by the first shell assembly. The powder scraping unit is rotationally connected with the side wall; one powder scraping unit is arranged in the surrounding space of the first bin shell; and the other powder scraping unit is arranged in the surrounding space of the second bin shell. The supporting assembly is arranged in the powder storage space; one end of the supporting assembly is connected with the connecting part, and the other end extends to be connected with the first shell assembly. Therefore, the problem of insufficient strength of a large-capacity powder box is solved.

Description

Technical Field

[0001] This invention relates to the field of printer technology, and more specifically, to a toner cartridge, a toner supply system, and a printer. Background Technology

[0002] Printer toner cartridges are core consumables for laser printers, primarily used to store toner and achieve quantitative toner delivery and imaging through internal precision components. A toner cartridge includes a toner hopper, developing roller, delivery roller, and scraper mechanism. The toner hopper stores toner, the scraper mechanism delivers the toner from the hopper to the delivery roller, and the delivery roller then delivers the toner to the developing roller. With the increasing prevalence of office automation, the application scenarios for toner cartridges are becoming more widespread, and their environmental adaptability requirements for transportation and storage are constantly increasing.

[0003] During the cross-regional transportation of toner cartridges, they often encounter scenarios involving changes in air pressure, ranging from low altitudes to high altitudes. As altitude increases, the external air pressure drops significantly, creating a substantial pressure difference between the inside and outside of the cartridge. While existing toner cartridges incorporate basic ventilated or sealed structures, they still have significant shortcomings. In particular, toner cartridges designed to maximize toner capacity are often large in size and struggle to adapt quickly to significant pressure changes, easily leading to bulging and deformation of the cartridge casing. Severe deformation can render the cartridge unusable. Summary of the Invention

[0004] To address the issue of insufficient strength in large-capacity toner cartridges, this invention provides a toner cartridge, a toner supply system, and a printer.

[0005] In a first aspect, the present invention provides a powder box, comprising: First shell assembly; The second shell assembly includes two powder scraping units and a shell unit. Each shell unit includes a first compartment shell, a connecting portion, a second compartment shell, and two sidewalls. The first compartment shell, the connecting portion, and the second compartment shell are sequentially connected along the width direction of the first compartment shell. The sidewalls are respectively connected to the two ends of the first compartment shell, the connecting portion, and the second compartment shell along the length direction of the first compartment shell. The first shell assembly is connected to the first compartment shell, the second compartment shell, and the sidewalls, forming a powder storage space. The powder scraping units are rotatably connected to the sidewalls. One powder scraping unit is disposed within the space enclosed by the first compartment shell; the other powder scraping unit is disposed within the space enclosed by the second compartment shell. A support component is disposed within the powder storage space; one end of the support component is connected to the connecting portion, and the other end extends to connect with the first shell component.

[0006] In some embodiments, the dimension of the support component in the width direction of the first hopper increases along the powder feeding direction.

[0007] In some embodiments, the support assembly includes a first support rod and a support unit; the first shell assembly is fixedly connected to the first support rod; the support unit is fixedly connected to the connecting portion; and the first support rod is connected to the support unit.

[0008] In some embodiments, the first support rod is ultrasonically welded to the support unit; S1 < S2; where S1 is the cross-sectional area of ​​the first support rod near the end of the support unit along a predetermined direction, and S2 is the cross-sectional area of ​​the support unit near the first support rod along the predetermined direction; the end face of the first support rod near the support unit is disposed in the projection area of ​​the support unit toward the direction of the first support rod; wherein, the predetermined direction includes a direction perpendicular to the length direction of the first support rod.

[0009] In some embodiments, the length of the first support rod is greater than the length of the support unit.

[0010] In some embodiments, the support unit includes a second support rod and a receiving groove; one end of the second support rod is connected to the connecting portion, and the other end extends toward the first housing assembly; the receiving groove is recessed from the end of the second support rod near the first housing assembly toward the connecting portion; a portion of the first support rod is disposed within the receiving groove; the end of the first support rod away from the first housing assembly is connected to the end of the receiving groove near the connecting portion; the outer peripheral wall of the first support rod and the inner peripheral wall of the receiving groove are spaced apart.

[0011] In some embodiments, the powder scraping unit includes a blade body, a resistance-reducing port, and a rotating shaft; one of the rotating shafts is rotatably connected to the first chamber shell; the other rotating shaft is rotatably connected to the second chamber shell; one end of the blade body is connected to the rotating shaft, and the other end extends away from the rotating shaft along the axial direction of the rotating shaft; the resistance-reducing port penetrates the blade body along the thickness direction; the working state of the powder box includes the blade body rotating around the axis of the rotating shaft.

[0012] In some embodiments, the powder scraping unit further includes a clearance portion; the clearance portion is recessed from the side of the blade away from the rotating shaft toward the rotating shaft; the clearance portion is spaced apart from the resistance reduction port; The working state also includes a portion during which the cutter body rotates around the axis of rotation, during which the avoidance portion surrounds part of the outer peripheral wall of the support assembly.

[0013] In some embodiments, the trajectory of the drag-reducing port rotating about the axis of rotation at least partially coincides with the projection of the support assembly along the width direction of the first chamber shell.

[0014] In some embodiments, the housing unit further includes a powder inlet; the powder inlet extends from the outer peripheral surface of the second housing to the inner peripheral surface of the second housing.

[0015] Secondly, the present invention also proposes a powder supply system, the powder supply system comprising a powder box as described in any of the first aspects, the powder supply system further comprising: Toner, wherein the toner is disposed within the toner storage space; The working state of the toner cartridge includes the toner scraping unit driving the toner in the toner storage space to move along the toner feeding direction; wherein, the toner feeding direction is the direction from the first compartment shell to the second compartment shell.

[0016] Thirdly, the present invention also provides a printer, the printer comprising a toner cartridge as described in any of the first aspects, the printer further comprising: The assembly includes a paper feeding unit, a photosensitive drum, a charging roller, a laser unit, a transfer unit, and a fixing unit; the paper feeding unit, the photosensitive drum, and the fixing unit are arranged sequentially along the paper feeding direction; the transfer unit, the laser unit, and the toner cartridge are arranged around the photosensitive drum.

[0017] To address the problem of insufficient strength in large-capacity powder boxes, this invention has the following advantages: The first housing unit, consisting of a first chamber shell, a connecting portion, and a second chamber shell, is sequentially connected along the width of the first chamber shell. The sidewalls are connected to the two ends of the first chamber shell, the connecting portion, and the second chamber shell along the length of the first chamber shell. The first housing assembly connects to and surrounds the first chamber shell, the second chamber shell, and the sidewalls to form a toner storage space, thus expanding the toner storage space and increasing the toner capacity of the toner cartridge to meet high-frequency printing requirements. Two toner scraping units are rotatably connected to the sidewalls, with one scraping unit positioned within the enclosing space of the first chamber shell and the other within the enclosing space of the second chamber shell, enabling two... Each powder scraping unit operates independently for two separate housings, ensuring continuous powder scraping even if one unit malfunctions. A support component, positioned within the powder storage space with one end connected to the connecting part and the other extending to connect to the first housing assembly, enhances the connection between the first housing assembly and the housing unit. This resists the pressure difference between the powder storage space and the external environment, preventing the powder cartridge from bulging and deforming. This solves the problem of large-volume powder cartridges becoming unusable due to pressure changes during cross-regional transportation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a powder box structure according to one embodiment; Figure 2 for Figure 1 Exploded view of the powder box; Figure 3 for Figure 2 A schematic diagram of the structure of the second shell component; Figure 4 for Figure 3 A structural schematic diagram of the second shell component from another perspective; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 for Figure 3 Schematic diagram of the middle powder scraping unit; Figure 7 This is a schematic diagram of the structure of a printer according to one embodiment.

[0019] Reference numerals: 10, First housing assembly; 20, Second housing assembly; 21, Toner scraper unit; 211, Blade body; 212, Resistance reducing port; 213, Rotating shaft; 214, Drive unit; 215, Clearance unit; 22, Housing unit; 221, First compartment housing; 222, Connecting part; 223, Second compartment housing; 224, Side wall; 225, Toner inlet; 30, Support assembly; 31, First support rod; 32, Support unit; 321, Second support rod; 322, Receiving groove; 41, Developing roller; 42, Paper feeding assembly; 43, Photosensitive drum; 44, Charging roller; 45, Laser assembly; 46, Transfer assembly; 47, Fixing assembly; 48, Paper feeding direction. Detailed Implementation

[0020] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.

[0021] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0022] As a core consumable for laser printers, toner cartridges face increasing demands for environmental adaptability during transportation and storage due to the widespread adoption of office automation. They frequently encounter scenarios involving cross-regional air pressure changes, ranging from low altitudes to high plateaus. Increased altitude leads to a significant decrease in external air pressure, creating a substantial pressure difference between the toner cartridge's storage space and the external air pressure. While existing toner cartridges incorporate basic ventilation or sealing structures, they still have shortcomings. For toner cartridges that form their storage space through a housing unit (including a first compartment, connecting section, second compartment, and sidewalls) and a larger volume designed to maximize storage capacity, it is difficult to quickly adapt to significant air pressure changes. This can easily cause the housing unit to bulge and deform, and severe deformation can render the toner cartridge unusable.

[0023] Example 1: This example discloses a powder box, such as... Figure 1 and Figure 2As shown, the powder box includes a first shell assembly 10, a second shell assembly 20, and a support assembly 30.

[0024] like Figure 3 As shown, the second shell assembly 20 includes two powder scraping units 21 and a shell unit 22. The shell unit 22 includes a first chamber shell 221, a connecting portion 222, a second chamber shell 223, and two side walls 224. The first chamber shell 221, the connecting portion 222, and the second chamber shell 223 are connected sequentially along the width direction of the first chamber shell 221. The side walls 224 are respectively connected to the two ends of the first chamber shell 221, the connecting portion 222, and the second chamber shell 223 along the length direction of the first chamber shell 221.

[0025] The first housing assembly 10 is connected to the first chamber housing 221, the second chamber housing 223, and the two side walls 224, respectively, and surrounds them to form a toner storage space, which can store toner. Compared with traditional toner cartridges that only have one chamber housing, this arrangement of the first chamber housing 221 and the second chamber housing 223 can expand the toner storage space and increase the toner storage capacity, thereby meeting the needs of high-frequency printing.

[0026] The toner scraper unit 21 is rotatably connected to the side wall 224; one toner scraper unit 21 is disposed within the enclosing space of the first housing 221; the other toner scraper unit 21 is disposed within the enclosing space of the second housing 223. When the toner scraper unit 21 rotates, it can drive the toner within the corresponding enclosing space to move. The toner cartridge also includes a developing roller 41, which is located on the side of the second housing 223 facing away from the first housing 221. When the toner scraper unit 21 in the first housing 221 rotates, it moves the toner in the first housing 221 into the second housing 223. When the toner scraper unit 21 in the second housing 223 rotates, it moves the toner in the second housing 223 toward the developing roller 41. Even if the toner scraper unit 21 in the first housing 221 malfunctions, the toner scraper unit 21 in the second housing 223 can still normally drive the toner toward the developing roller 41.

[0027] like Figure 2 and Figure 3 As shown, the support component 30 is disposed within the powder storage space; one end of the support component 30 is connected to the connecting part 222, and the other end extends to connect with the first shell component 10. The support component 30 connects the connecting part 222 and the first shell component 10, and even if the air pressure inside the powder storage space is greater than the external air pressure, the support component 30 can prevent the powder box from bulging and deforming.

[0028] Furthermore, the dimension of the support component 30 in the width direction of the first housing 221 increases along the toner feeding direction. (The toner feeding direction can be the direction in which the toner moves within the toner storage space after being driven by the toner scraper unit 21.) This dimensional variation design reduces the obstruction of the support component 30 to the toner, and the toner delivered by the toner scraper unit 21 continues to move along the surface of the support component 30 after contacting it. Preferably, the dimension of the support component 30 gradually increases along the toner feeding direction in the width direction of the first housing 221, so that the support component 30 can minimize the obstruction to the toner scraper unit 21 while ensuring structural strength. In addition, in other embodiments, the cross-sectional shape of the support component can also be square, circular, trapezoidal, etc.

[0029] Furthermore, the support assembly 30 includes a first support rod 31 and a support unit 32; the first shell assembly 10 is fixedly connected to the first support rod 31; the support unit 32 is fixedly connected to the connecting part 222; and the first support rod 31 is connected to the support unit 32. When the long rod-shaped support assembly 30 is injection molded, the injection liquid has a long flow path into the mold, which can easily lead to poor fluidity due to insufficient flow before reaching the set temperature, and the long gas discharge path in the injection liquid can affect the molding quality. By splitting the support assembly 30 into the first support rod 31 and the support unit 32, problems such as insufficient material fluidity and gas residue that occur when the long rod-shaped support assembly 30 is injection molded as a whole can be avoided, ensuring the molding quality of the first support rod 31 and the support unit 32, and thus ensuring the support strength after the first support rod 31 and the support unit 32 are connected. It is worth noting that the fixed connection can be achieved through integral injection molding, which can further improve the reliability of the connection.

[0030] Furthermore, the first support rod 31 and the support unit 32 are ultrasonically welded; S1 < S2; where S1 is the cross-sectional area of ​​the first support rod 31 near the support unit 32 along a set direction, and S2 is the cross-sectional area of ​​the support unit 32 near the first support rod 31 along a set direction; the end face of the first support rod 31 near the support unit 32 is located within the projection area of ​​the support unit 32 towards the direction near the first support rod 31; wherein, the set direction includes the direction perpendicular to the length direction of the first support rod 31. This allows the larger cross-sectional area of ​​the support unit 32 to absorb welding debris, preventing welding debris from entering the toner storage space, preventing debris from contaminating the toner or affecting print quality, while not hindering the normal flow of toner along the toner feeding direction. Furthermore, the ultrasonic welding method ensures the connection strength between the first support rod 31 and the support unit 32, maintaining the overall stable support performance of the support assembly 30, continuously resisting the force caused by the pressure difference between the toner storage space and the outside environment, and preventing the toner cartridge housing from bulging and deforming.

[0031] Furthermore, the length of the first support rod 31 is greater than the length of the support unit 32. This allows the portion of the support assembly 30 with a smaller cross-sectional area that obstructs toner flow to occupy a larger proportion, while the portion with a larger cross-sectional area occupies a shorter section. This reduces the obstruction effect of the coarse support unit 32 on toner flow within the toner storage space, ensuring smooth toner delivery along the toner feeding direction and avoiding toner delivery obstruction caused by the support assembly 30.

[0032] Furthermore, such as Figure 4 and Figure 5 As shown, the support unit 32 includes a second support rod 321 and a receiving groove 322. One end of the second support rod 321 is connected to the connecting portion 222, and the other end extends towards the first housing assembly 10. The receiving groove 322 is recessed from the end of the second support rod 321 near the first housing assembly 10 towards the connecting portion 222. A portion of the first support rod 31 is disposed within the receiving groove 322. The end of the first support rod 31 away from the first housing assembly 10 is connected to the end of the receiving groove 322 near the connecting portion 222. The outer peripheral wall of the first support rod 31 is spaced apart from the inner peripheral wall of the receiving groove 322. This method can confine the debris generated by ultrasonic welding within the receiving groove 322, preventing debris from entering the toner storage space and contaminating the toner, or affecting the operation of the toner scraper unit 21 and the printing quality, further preventing debris from contaminating the toner or affecting the printing quality.

[0033] Furthermore, such as Figure 6 As shown, the toner scraping unit 21 includes a blade body 211, a drag-reducing port 212, and a rotating shaft 213. One rotating shaft 213 is rotatably connected to the first chamber housing 221; the other rotating shaft 213 is rotatably connected to the second chamber housing 223. One end of the blade body 211 is connected to the rotating shaft 213, and the other end extends away from the rotating shaft 213 along its axial direction. The drag-reducing port 212 penetrates the blade body 211 along its thickness direction. The toner cartridge operates by rotating the blade body 211 around the axis of the rotating shaft 213. When the blade body 211 rotates around the central axis of the rotating shaft 213, it can drive the toner to move, and at the same time, some toner passes through the drag-reducing port 212. The resistance reduction port 212 during rotation can reduce the impact resistance of toner on the scraper unit 21, allowing the blade 211 to rotate more smoothly. This can reduce the load loss of the printer drive motor. Compared with the traditional scraper unit 21, which has difficulty scraping toner when the toner has poor flowability and causes jamming, with the resistance reduction port 212, even if the toner has poor flowability, the scraper unit 21 can rotate in the toner with lower resistance and improve the flowability of the toner by stirring, thus reducing the resistance during subsequent rotation.

[0034] In other embodiments, the toner scraper unit 21 includes a drive unit 214, which is driven to one axial end of the rotating shaft 213; the drive unit 214 is used to drive the rotating shaft 213 to rotate around its own axis. As an independent drive component of the toner cartridge assembly, the drive unit 214 can directly provide continuous and stable power for the rotation of the rotating shaft 213, thereby avoiding insufficient power caused by indirect transmission from other components of the printer. In addition, in other embodiments, the toner cartridge assembly also includes a developing roller 41 and a toner feeding roller, and the drive unit 214 is also driven to both the developing roller 41 and the toner feeding roller. Further, the toner scraper unit 21 also includes a clearance part 215; the clearance part 215 is recessed from the side of the blade body 211 away from the rotating shaft 213 toward the direction closer to the rotating shaft 213; the clearance part 215 is spaced apart from the drag-reducing port 212.

[0035] The working state also includes the part where the blade body 211 rotates around the axis of the rotating shaft 213, during which the avoidance part 215 surrounds part of the outer peripheral wall of the support component 30. In this way, the blade body 211 does not interfere with the support component 30 when rotating, which can avoid mechanical collision or friction between the two and ensure the smooth rotation of the blade body 211. This does not affect the function of the drag reduction port 212 in reducing air resistance and toner resistance, and the avoidance structure allows the blade body 211 to fully cover the toner scraping area of ​​the corresponding chamber, ensuring that the toner scraping is sufficient and uniform, thereby further improving the toner scraping efficiency and printing quality.

[0036] Furthermore, the trajectory of the drag-reducing port 212 rotating around the axis of the rotating shaft 213 at least partially coincides with the projection of the support component 30 along the width direction of the first chamber shell 221. The area of ​​the toner scraping unit 21 without the drag-reducing port 212 has a larger toner delivery volume than the area with the drag-reducing port 212. This allows the area without the drag-reducing port 212, which has a larger toner delivery volume, to avoid the coverage area of ​​the projection of the support component 30 along the width direction of the first chamber shell 221, reducing the obstruction of the support component 30 to the toner delivery and ensuring that the toner in the area with a larger toner delivery volume flows smoothly along the toner delivery direction.

[0037] Furthermore, the housing unit 22 also includes a toner outlet 225; the toner outlet 225 extends from the outer peripheral surface of the second housing 223 to the inner peripheral surface of the second housing 223. This provides a dedicated toner outlet channel for the toner storage space of the second housing 223, and in conjunction with the toner scraping unit 21 inside the second housing 223, it enables directional output of toner from the second housing 223. The toner delivery direction is the direction in which the first housing 221 and the toner outlet 225 are sequentially arranged.

[0038] Example 2: This example provides a toner supply system, which includes any of the toner cartridges in the above examples. The toner supply system includes toner, and the toner is disposed in the toner storage space.

[0039] The toner cartridge operates by having the scraper unit 21 drive the toner in the storage space to move along the toner delivery direction. This delivery direction is from the first compartment 221 to the second compartment 223. The support assembly 30 continuously resists the force caused by the pressure difference between the storage space and the outside environment, while also handling the internal pressure generated during toner delivery. This prevents the toner cartridge housing from bulging and deforming, and prevents toner leakage from the sealing gap or toner outlet 225, thus avoiding toner waste and contamination of internal printer components. Furthermore, the toner supply system maintains the stability of the original toner cartridge structure and the synergistic effect of its components. Through directional toner delivery and dual-compartment coordination, it ensures the uniformity and consistency of toner supply, improving print quality stability. The specific structure of the toner cartridge in Embodiment 2 is the same as in Embodiment 1. Since this toner supply system adopts all the technical solutions in Embodiment 1, it possesses at least all the beneficial effects brought about by the technical solutions in Embodiment 1, which will not be elaborated further here.

[0040] Example 3: This example provides a printer, which includes any of the toner cartridges described in the above examples, such as... Figure 7 As shown, the printer may include a paper feed assembly 42, a photosensitive drum 43, a charging roller 44, a laser assembly 45, a transfer assembly 46, and a fixing assembly 47; the paper feed assembly 42, the photosensitive drum 43, and the fixing assembly 47 are arranged sequentially along the paper feeding direction 48; the transfer assembly 46, the laser assembly 45, and the toner cartridge are arranged around the photosensitive drum 43. The toner cartridge also includes a toner feeding roller and a developing roller 41.

[0041] The paper feeding assembly 42 is used to feed and store paper; the laser assembly 45 is used to emit pulsed beams to the photosensitive drum 43; the transfer assembly 46 generates a high-voltage electrostatic field to form an adsorption force to transfer the electrostatic toner image on the photosensitive drum 43 to the printing medium; and the fixing assembly 47 is used to pressurize and heat the toner to fix it to the printing medium.

[0042] The printer's operation includes the following steps: the photosensitive drum 43 rotates around its own axis; the charging roller 44 applies a negative charge to the photosensitive drum 43; the laser assembly 45 emits a pulse beam based on the printing data, which irradiates the photosensitive drum 43 to form an electrostatic latent image area; the toner in the toner cartridge is transported to the toner delivery roller by the toner scraper unit 21; the toner delivery roller delivers the toner to the developing roller 41; the electrostatic latent image area of ​​the photosensitive drum 43 adsorbs the toner on the developing roller 41; then the paper in the paper feed assembly 42 moves along the paper feed direction 48 between the photosensitive drum 43 and the transfer assembly 46; the transfer assembly 46 and the photosensitive drum 43 drive the paper to move along the paper feed direction 48 toward the fixing assembly 47 and apply a positive charge to the paper, causing the toner on the photosensitive drum 43 to move onto the paper; then the fixing assembly 47 heats the paper and the toner on the paper, melting and solidifying the unfixed powdery toner on the paper surface, achieving the bonding of toner and paper; finally, the fixing assembly 47 drives the paper to move out of the printer.

[0043] The specific structure of the toner cartridge in Embodiment 3 is the same as that in Embodiment 1. Since this printer adopts all the technical solutions in Embodiment 1, it has at least all the beneficial effects brought about by the technical solutions in Embodiment 1, which will not be described in detail here.

[0044] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the scope of this disclosure.

Claims

1. A powder box characterized by comprising: The powder box comprises: a first shell assembly; a second shell assembly comprising two powder scraping units, a shell unit; the shell unit comprises a first compartment shell, a connecting part, a second compartment shell, two side walls; the first compartment shell, the connecting part, the second compartment shell are sequentially connected along the width direction of the first compartment shell; the side walls are respectively connected with the first compartment shell, the connecting part, the second compartment shell along the two ends of the first compartment shell in the length direction; the first shell assembly is respectively connected with the first compartment shell, the second compartment shell, the side wall, and surrounds to form a powder storage space; the powder scraping units are rotationally connected with the side walls; one of the powder scraping units is arranged in the surrounding space of the first compartment shell; the other powder scraping unit is arranged in the surrounding space of the second compartment shell; a support assembly arranged in the powder storage space; one end of the support assembly is connected with the connecting part, and the other end extends to be connected with the first shell assembly.

2. The powder box according to claim 1, wherein the size of the support assembly in the width direction of the first compartment shell increases along the powder conveying direction.

3. The powder box according to claim 1, wherein the support assembly comprises a first support rod and a support unit; the first shell assembly is fixedly connected with the first support rod; the support unit is fixedly connected with the connecting part; and the first support rod is connected with the support unit.

4. The powder box according to claim 3, wherein the first support rod and the support unit are connected by ultrasonic welding; S1 < S2; wherein S1 is the cross-sectional area of the first support rod close to the support unit along a certain direction, and S2 is the cross-sectional area of the support unit close to the first support rod along the certain direction; the end surface of the first support rod close to the support unit is arranged in the projection area of the support unit towards the direction close to the first support rod; wherein the certain direction includes a direction perpendicular to the length direction of the first support rod.

5. The powder box according to claim 4, wherein the length of the first support rod is greater than the length of the support unit.

6. The powder box according to claim 4, wherein the support unit comprises a second support rod and a receiving groove; one end of the second support rod is connected with the connecting part, and the other end extends towards the direction close to the first shell assembly; the receiving groove is recessed from the end of the second support rod close to the first shell assembly towards the connecting part; part of the first support rod is arranged in the receiving groove; the end of the first support rod away from the first shell assembly is connected with the end of the receiving groove close to the connecting part; and the outer peripheral wall of the first support rod is arranged in a spaced manner with the inner peripheral wall of the receiving groove.

7. The powder box according to claim 1, wherein The scraping unit comprises a blade body, a resistance-reducing opening and a rotating shaft; one of the rotating shafts is rotationally connected to the first cartridge shell; the other rotating shaft is rotationally connected to the second cartridge shell; one end of the blade body is connected to the rotating shaft, and the other end extends away from the rotating shaft along the axial direction of the rotating shaft; the resistance-reducing opening penetrates the blade body along the thickness direction of the blade body; the working state of the powder cartridge comprises rotation of the blade body around the axis of the rotating shaft.

8. The powder cartridge according to claim 7, wherein, The scraping unit further comprises a relief portion; the relief portion is recessed from the side of the blade body away from the rotating shaft towards the rotating shaft; the relief portion is arranged in a spaced manner with the resistance-reducing opening; The working state further comprises a part of the process in which the blade body rotates around the axis of the rotating shaft, and the relief portion surrounds part of the outer peripheral wall of the support assembly.

9. The powder cartridge according to claim 7, wherein, The trajectory of rotation of the resistance-reducing opening around the axis of the rotating shaft at least partially coincides with the projection of the support assembly along the width direction of the first cartridge shell, respectively.

10. The powder cartridge according to claim 1, wherein, The cartridge unit further comprises a powder outlet; the powder outlet penetrates from the outer peripheral surface of the second cartridge shell to the inner peripheral surface of the second cartridge shell.

11. A powder supply system characterized by comprising: The powder supply system comprises the powder cartridge according to any one of claims 1-10, and further comprises: Toner, which is arranged in the powder storage space; The working state of the powder cartridge comprises driving of the scraping unit to move the toner in the powder storage space in a powder feeding direction; wherein the powder feeding direction is from the first cartridge shell to the second cartridge shell.

12. A printer characterized by comprising: The printer comprises the powder cartridge according to any one of claims 1-10, and further comprises: A paper feeding assembly, a photosensitive drum, a charging roller, a laser assembly, a transfer assembly and a fixing assembly; the paper feeding assembly, the photosensitive drum and the fixing assembly are arranged in sequence along a paper feeding direction; the transfer assembly, the laser assembly and the powder cartridge are arranged on the side of the photosensitive drum.

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