High-stability cleaning scraper
By using an L-shaped blade holder and blade screw for fixed connection and a sliding structure for reinforcing parts, the problem of the toner cartridge cleaning scraper easily lifting up is solved, achieving a highly stable and long-lasting cleaning effect, thus improving the print quality and lifespan of the laser printer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KOGON TECH
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-28
AI Technical Summary
The existing toner cartridge cleaning scraper has a simple structure, which makes the blades prone to warping and cracking, resulting in a short service life and affecting the scraping effect and print quality.
The L-shaped tool holder and the blade are fixedly connected by screws and reinforced with a reinforcing member to enhance the connection stability. The overall stability is improved by the sliding connection between the reinforcing member, the blade, and the tool holder.
The improved cleaning blade structure enhances structural stability and extends its lifespan, ensuring effective cleaning of the photosensitive drum surface and improving print quality and equipment lifespan.
Smart Images

Figure CN224176888U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser printer technology, and in particular to a highly stable cleaning scraper. Background Technology
[0002] As a core component of modern office equipment, the imaging quality and stability of laser printers directly depend on the performance of their key functional components. During the imaging process of a laser printer, the toner adsorbed on the surface of the photosensitive drum after exposure and development needs to be transferred to the paper through a transfer process. The cleaning effect of residual toner directly affects subsequent print quality and the lifespan of the equipment. Among these components, the toner cartridge cleaning blade, as a core component of the contact cleaning device, has its structural design and operational efficiency as key technical factors determining the level of toner residue control.
[0003] The currently used toner cartridge cleaning scraper design is relatively simple, consisting of a single blade glued to a blade holder. This blade scrapes away residual toner from the photosensitive drum surface. However, during use, the tip of the individual blade is subjected to stress, making it prone to warping and cracking at the glued joint. This reduces the blade's lifespan and can even cause it to detach, affecting the scraping effect. This results in toner residue remaining on the photosensitive drum surface. As the number of printed pages increases, the charging roller surface becomes increasingly contaminated with toner, reducing charging efficiency and exacerbating uneven print density. Summary of the Invention
[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this patent application is how to provide a highly stable cleaning scraper with reasonable structure, high stability and long service life.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A highly stable cleaning scraper includes a blade holder and a blade, wherein one side of the blade is provided with a cutting edge; the blade holder is L-shaped, and both ends of the blade holder have mounting plates, and both ends of the mounting plates are provided with mounting holes;
[0007] The blade is located on the blade holder, and the lower surface and the surface away from the blade edge of the blade are in contact with the blade holder. The blade has several through holes, and the blade holder has a threaded hole directly opposite the through holes. The blade and the blade holder are fixedly connected by screws.
[0008] In this way, the blade holder is fixedly installed inside the toner cartridge with screws. During use, the blade's edge scrapes away residual toner from the surface of the photosensitive drum. The overall structure includes the blade holder and the blade, which are fixedly connected with screws for easy assembly. At the same time, the L-shaped blade holder limits the two sides of the blade, improving installation accuracy.
[0009] Preferably, it also includes several reinforcing members, the reinforcing members are in the shape of "I", the blade has an upper groove with the same number of reinforcing members, the upper groove is opened on the side away from the blade edge, the reinforcing members are inserted into the upper groove and fixedly connected to the blade, the blade holder has a lower groove with the same number of reinforcing members, the reinforcing members are inserted into the lower groove and fit against the blade holder.
[0010] Preferably, the reinforcing member is welded to the blade.
[0011] Preferably, an adhesive is provided between the reinforcing member and the tool holder.
[0012] Preferably, an adhesive is provided between the blade and the blade holder.
[0013] In summary, this highly stable cleaning scraper has the advantages of reasonable structure, high stability, and long service life. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a high-stability cleaning scraper according to the present invention.
[0015] Figure 2 for Figure 1 A diagram showing another location.
[0016] Figure 3 for Figure 1 The split diagram.
[0017] Figure 4 This is a schematic diagram of the blade and the reinforcing member.
[0018] Figure 5 for Figure 4 Enlarged diagram of point A in the middle. Detailed Implementation
[0019] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that directional terms such as "upper," "lower," "top," and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0020] like Figure 1-5 As shown, a high-stability cleaning scraper includes a blade holder 1 and a blade 2, with a cutting edge on one side of the blade; the blade holder is L-shaped, and mounting plates 3 are provided at both ends of the blade holder, with mounting holes 4 at both ends of the mounting plates;
[0021] The blade is located on the blade holder, and the lower surface and the surface away from the blade edge of the blade are in contact with the blade holder. The blade is provided with several through holes 5, and the blade holder is provided with threaded holes 6 directly opposite the through holes. The blade and the blade holder are fixedly connected by screws 7.
[0022] In this way, the blade holder is fixedly installed inside the toner cartridge with screws. During use, the blade's edge scrapes away residual toner from the surface of the photosensitive drum. The overall structure includes the blade holder and the blade, which are fixedly connected with screws for easy assembly. At the same time, the L-shaped blade holder limits the two sides of the blade, improving installation accuracy.
[0023] In specific implementation, it also includes several reinforcing members 8, which are in the shape of "I". The blade has an upper groove with the same number of reinforcing members. The upper groove is opened on the side away from the blade. The reinforcing members are inserted into the upper groove and fixedly connected to the blade. The blade holder has a lower groove 9 with the same number of reinforcing members. The reinforcing members are inserted into the lower groove and fit against the blade holder.
[0024] In this way, by incorporating several reinforcing components, the connection stability between the blade body and the blade holder is increased, thereby improving the overall stability of the scraper. The reinforcing component is I-shaped, slidingly engaging with the upper groove and fixed to the blade, and then slidingly engaging with the lower groove and fitting against the blade holder. The blade body and blade holder are connected by the reinforcing block, improving overall integrity, better stress distribution, and extending service life.
[0025] In practice, the reinforcing member is welded to the blade, which facilitates manufacturing.
[0026] In practice, adhesive is used between the reinforcing member and the tool holder for easy assembly.
[0027] In practice, adhesive is used between the blade and the blade holder to further improve the installation stability of the blade.
[0028] Finally, it should be noted that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A high-stability cleaning scraper, comprising a blade holder (1) and a blade (2), wherein a cutting edge is provided on one side of the blade; characterized in that, The tool holder is L-shaped, and has mounting plates (3) at both ends. The mounting plates have mounting holes (4) at both ends. The blade is located on the tool holder. The lower surface and the surface away from the blade edge are in contact with the tool holder. The blade is provided with several through holes (5). The tool holder is provided with a threaded hole (6) directly opposite the through holes. The blade and the tool holder are fixedly connected by screws (7).
2. The high-stability cleaning scraper according to claim 1, characterized in that, It also includes several reinforcing members (8), which are in the shape of "I". The blade has an upper groove with the same number of reinforcing members. The upper groove is opened on the side away from the blade. The reinforcing members are inserted into the upper groove and fixedly connected to the blade. The blade holder has a lower groove (9) with the same number of reinforcing members. The reinforcing members are inserted into the lower groove and fit against the blade holder.
3. The high-stability cleaning scraper according to claim 2, characterized in that, The reinforcing member is welded to the blade.
4. A high-stability cleaning scraper according to claim 3, characterized in that, An adhesive is provided between the reinforcing member and the tool holder.
5. A high-stability cleaning scraper according to claim 4, characterized in that, An adhesive is provided between the blade and the blade holder.