A powder scraping plate working in cooperation with a fuser

Abstract

The utility model discloses a kind of powder scraping plate cooperating with fixing device, including scraper, the scraper is sheet structure design, by bending forming, its overall is "Z" shape;The top of the scraper is scraper plate, and the bottom is mounting plate;The scraper is fixed to fixing device mounting frame by its mounting plate with the cooperation of fastener;The fixing device mounting frame is provided with the hole site for the positioning installation of fixing device;The scraper fixed on fixing device mounting frame, the height of its scraper plate should be same with the shaft center of fixing device also installed on fixing device mounting frame. The utility model can be directly added to the fixing device mounting frame of original factory using fastener, make it close and adhere fixing device, to scrape the waste powder attached to its surface in the process of fixing device rotation, to improve print quality and service life, in addition, the scraper plate of the scraper is covered with antistatic film, can avoid contact fixing device to cause its breakage, and also better antistatic to scrape waste powder.

Description

Technical Field

[0001] This utility model belongs to the field of printing consumables technology, and in particular relates to a toner scraper that works in conjunction with a fuser. Background Technology

[0002] The toner cartridge, also known as the fuser, is generally composed of a base material made of aluminum and a photosensitive material coated on the base material. The toner cartridge not only determines the print quality but also the cost to the user. In laser printers, when the charged surface of the toner cartridge passes over the ink roller, the charged parts attract toner particles, thus transforming the latent image into a real image. As the drum unit rotates during operation, the printing system feeds the paper. The paper carries a much stronger charge, the same polarity as the drum unit's surface. The paper then passes through the toner-laden drum unit, attracting the toner from its surface onto the paper, forming an image. The drum unit is a cylinder coated with an organic material and pre-charged. When light shines on it, the illuminated areas exhibit resistance. The transmitted data signal controls the laser emission, and the light scanning the drum unit's surface constantly changes. Some areas are illuminated, reducing resistance and eliminating the charge, while others remain unilluminated, retaining the charge. Ultimately, a latent image composed of charges forms on the drum unit's surface. At this point, the toner and paper are only bound together by the attraction of their charges. Before the paper leaves the printer, it is heated to a high temperature, melting the toner, which then solidifies on the paper's surface during cooling. After the toner is applied to the paper, the drum unit continues to rotate, passing through a cleaner to remove any remaining toner before entering the next printing cycle. The waste toner scraper is an accessory of the toner cartridge assembly and an important component of it, primarily for cleaning. During the printing or copying process in a printer or copier, toner forms an image on the toner cartridge assembly and is then transferred to the copy paper. Some toner remains on the toner cartridge assembly during this process. If this toner is not removed, it will be transferred to the next sheet of paper, affecting the copying effect and quality. Therefore, a device is needed to remove the residual toner from the toner cartridge assembly after each copy; this device is the waste toner scraper.

[0003] Currently, traditional toner cartridge waste toner scrapers, after prolonged use, suffer from rubber melting and deformation due to excessively high internal temperatures. The scraper blades often develop gaps due to wear and static electricity, resulting in localized background gray or vertical light black lines on the printed products. This directly affects the quality of the printed products and indirectly impacts the lifespan of the toner cartridge. Utility Model Content

[0004] This invention provides a powder scraper that works in conjunction with a fuser to solve the problems mentioned in the background art.

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

[0006] A scraper blade that works in conjunction with a fuser includes a scraper blade, characterized in that the scraper blade has a thin sheet structure design, formed by bending, and its overall shape is "Z"; the top of the scraper blade is a scraper blade, and the bottom is a mounting plate; the scraper blade is fixed to the fuser mounting bracket by fasteners through its mounting plate; the fuser mounting bracket has holes for positioning and mounting the fuser; the height of the scraper blade fixed on the fuser mounting bracket should be the same as the axis of the fuser that is also mounted on the fuser mounting bracket.

[0007] Preferably, the scraper blade is covered with an antistatic film.

[0008] Preferably, the scraper is fixed close to the mounting position of the fuser.

[0009] Compared with the prior art, the advantages of this utility model are as follows: This utility model can be directly installed onto the original fuser mounting bracket using fasteners, so that it is close to and fits the fuser, so that the waste toner attached to its surface can be scraped off during the rotation of the fuser, thereby improving print quality and service life. In addition, the scraper blade is covered with an antistatic film. This design can not only prevent the metal scraper blade from directly contacting the fuser and causing it to break, but also better prevent static electricity to scrape off the attached waste toner. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model installed on the fuser mounting bracket.

[0011] Figure 2 This is a schematic diagram showing the position of the fuser mounted on the fuser mounting bracket.

[0012] Figure 3 This is a schematic diagram of the structure of this utility model.

[0013] Figure 4 This is a schematic diagram showing the interaction between the present invention and the fuser. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figures 1 to 4 As shown, this utility model is a toner scraper that works in conjunction with a fuser. It mainly includes a scraper blade (1) and can be directly installed onto the original fuser mounting bracket (5) using fasteners (4) to directly install on toner cartridge modules that do not have a toner scraper blade, so as to obtain better performance. It is simple to manufacture and easy to install.

[0016] Specifically, the scraper (1) is designed as a thin sheet structure and is formed by bending, and its overall shape is "Z"; the top of the scraper (1) is a scraper plate (2), and the bottom is a mounting plate (3). The scraper (1) is fixed to the fuser mounting bracket (5) by screw holes opened in the mounting plate (3) to cooperate with fasteners (4). Of course, the fuser mounting bracket (5) is provided with holes (7) for the fuser (6) to be positioned and installed.

[0017] During installation, it is important to note that the height of the scraper blade (2) of the scraper (1) fixed on the fuser mounting bracket (5) should be the same as the axis of the fuser (6) also mounted on the fuser mounting bracket (5). Furthermore, the fixed position of the scraper (1) should be close to the mounting position of the fuser (6). After installation, based on the thin sheet structure of the scraper (1), it can undergo elastic deformation, specifically as follows: Figure 4 As shown, the scraper blade (2) is tangent to the outer surface of the fuser (6), which can be tangent to the upper or lower semicircle of the outer surface of the fuser (6). Based on elastic deformation, the scraper blade (1) will exert force to ensure that the scraper blade (2) is in close contact with the outer surface of the fuser (6), so as to scrape off the waste powder attached to the fuser (6) to the greatest extent during operation. It is worth noting that the scraper blade (2) is covered with an antistatic film (20). This design can not only prevent the metal scraper blade (1) from directly contacting the fuser (6) and causing it to break, but also better resist static electricity to scrape off the attached waste powder.

[0018] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

Claims

1. A powder scraper that works in conjunction with a fuser, comprising a scraper blade (1), characterized in that, The scraper (1) is a thin sheet structure designed and formed by bending, and its overall shape is "Z". The top of the scraper (1) is a scraper blade (2) and the bottom is a mounting plate (3). The scraper (1) is fixed to the fuser mounting bracket (5) by fasteners (4) through its mounting plate (3). The fuser mounting bracket (5) has holes (7) for positioning and installing the fuser (6). The height of the scraper blade (2) of the scraper (1) fixed on the fuser mounting bracket (5) should be the same as the axis of the fuser (6) which is also installed on the fuser mounting bracket (5).

2. The powder scraper that works in conjunction with a fuser according to claim 1, characterized in that, The scraper blade (2) is covered with an antistatic film (20).

3. A powder scraper that works in conjunction with a fuser according to claim 1, characterized in that, The scraper (1) should be fixed close to the mounting position of the fuser (6).

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