Printer doctor blade convenient to install
By designing a novel structure for the powder discharge blade, the problems of inconvenient installation and uneven powder discharge in existing technologies have been solved, achieving stable installation of the powder discharge blade and uniform powder discharge, while protecting the integrity of the magnetic roller.
Patent Information
- Application Number
- CN202520619938.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-04-03
AI Technical Summary
Existing printer toner blades are inconvenient to install and cannot be tightly pressed against the surface of the magnetic roller, resulting in uneven toner dispensing and easy damage to the magnetic roller.
A structure including a powder dispensing blade body, a movable plate, a blade holder, and an outer plate was designed. By using components such as sliding rods, support springs, and adjusting bolts, the powder dispensing blade can be stably installed and powder can be dispensed evenly, thus avoiding damage to the magnetic roller.
This design enables convenient installation of the powder dispensing blade and ensures uniform powder dispensing, avoiding damage to the magnetic roller and improving the stability and uniformity of powder dispensing.
Smart Images

Figure CN223870963U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printer accessories technology, specifically to a printer toner ejector blade that is easy to install. Background Technology
[0002] Laser printers use the rotation of a magnetic roller, toner blade, photosensitive drum, and charging roller to deliver toner onto the printing paper. In order to control the surface of the magnetic roller to have a uniform layer of toner and charge, a matching toner blade needs to be installed. The toner blade scrapes off the excess toner on the magnetic roller, so that the toner is dispensed evenly.
[0003] Existing printer toner blades are inconvenient to install and use, cannot press the blade body tightly against the magnetic roller surface, cannot achieve uniform toner dispensing, and are prone to damaging the printer's magnetic roller. Utility Model Content
[0004] To address the problems in the existing technology, this utility model provides an easy-to-install printer toner dispenser blade. The toner dispenser blade is easy to install and use, and the blade body is tightly pressed against the surface of the magnetic roller, achieving uniform toner dispensing without damaging the printer's magnetic roller.
[0005] The technical solution adopted by this utility model to solve its technical problem is a printer toner blade that is easy to install, including a toner blade body, a movable plate, a blade holder and an outer plate. The top two ends of the blade holder are heat-fused to the outer plate and an inner telescopic plate is fitted inside the outer plate. The top of the inner telescopic plate is heat-fused to the mounting foot plate. The bottom two ends of the blade holder are connected to the movable plate by support springs. The two ends of the blade holder are bolted to the side plates.
[0006] The bottom of the movable plate is heat-fused to a U-shaped clamping groove, and a powder dispensing knife body is installed in the U-shaped clamping groove by a knife head fixing bolt. The powder dispensing knife body is made of PU material and has a cutting edge at the bottom.
[0007] By adopting the above technical solution, the printer toner blade is easy to install and use, and the toner blade body is tightly pressed against the surface of the magnetic roller, achieving uniform toner dispensing without damaging the printer magnetic roller.
[0008] Specifically, the side plate has a strip-shaped sliding hole and a sliding rod slides inside the strip-shaped sliding hole, and one end of the sliding rod is heat-fused to a movable plate.
[0009] By adopting the above technical solution, the sliding rod slides within the strip-shaped sliding hole, improving the stability of the movable plate during vertical movement and reducing the shaking of the powder discharge blade body.
[0010] Specifically, a limiting sleeve is fitted at the other end of the slide rod, and the limiting sleeve is located outside the strip-shaped sliding hole.
[0011] Specifically, both ends of the support spring are respectively equipped with a movable plate and a tool holder via positioning plates and positioning screws.
[0012] Specifically, an adjusting bolt is installed on one side of the top of the outer jacket through a screw hole.
[0013] Specifically, the mounting foot plate has mounting holes, and a triangular reinforcing plate is provided on the inner side of the connection between the outer sleeve plate and the tool holder.
[0014] By adopting the above technical solution, the mounting holes on the mounting feet and the matching bolts facilitate the installation of the printer toner blade into the printer, and the triangular reinforcing plate improves the strength of the connection between the outer plate and the blade holder.
[0015] The beneficial effects of this utility model are:
[0016] (1) The printer toner blade described in this utility model is easy to install. It uses the mounting holes on the mounting feet and the matching bolts to make it easy to install the printer toner blade into the printer. The bottom edge of the toner blade body contacts the surface of the printer magnetic roller, which can control the thickness of the toner layer on the surface of the magnetic roller sleeve and make the toner rotate out evenly.
[0017] (2) The printer toner blade described in this utility model is easy to install. The exposed length of the inner telescopic plate is adjusted by loosening the adjusting bolt, so that the toner blade body is in full contact with the surface of the magnetic roller sleeve. After adjustment, the adjusting bolt is tightened to fix the inner telescopic plate. Under the action of the support spring, the toner blade body is pressed tightly against the surface of the magnetic roller, so as to achieve uniform toner dispensing and not damage the printer magnetic roller. The sliding rod slides in the strip-shaped sliding hole to improve the stability of the movable plate in vertical movement and reduce the shaking of the toner blade body. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a side view of the present invention;
[0021] Figure 3 This utility model Figure 1 A schematic diagram of the structure at point A.
[0022] In the diagram: 1. Powder discharge blade body; 2. U-shaped clamping groove; 3. Blade head fixing bolt; 4. Movable plate; 5. Support spring; 6. Blade holder; 7. Positioning plate; 8. Adjusting bolt; 9. Mounting foot plate; 10. Mounting hole; 11. Inner telescopic plate; 12. Outer plate; 13. Side plate; 14. Strip-shaped sliding hole; 15. Limiting sleeve block; 16. Sliding rod; 17. Blade angle. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] To facilitate the installation and use of the printer's toner dispenser blade, the blade body 1 is pressed tightly against the surface of the magnetic roller, ensuring even toner dispensing without damaging the printer's magnetic roller. Figure 1-3 As shown, the present invention provides an easy-to-install printer toner blade, comprising a toner blade body 1, a movable plate 4, a blade holder 6, and an outer plate 12. The top two ends of the blade holder 6 are heat-fused to the outer plate 12, and an inner telescopic plate 11 is fitted inside the outer plate 12. The top of the inner telescopic plate 11 is heat-fused to the mounting foot plate 9. The bottom two ends of the blade holder 6 are connected to the movable plate 4 by support springs 5. The two ends of the blade holder 6 are bolted to the side plates 13.
[0025] The bottom of the movable plate 4 is heat-fused to a U-shaped clamping groove 2. A powder dispensing knife body 1 is installed in the U-shaped clamping groove 2 by a knife head fixing bolt 3. The powder dispensing knife body 1 is specifically made of PU material and has a blade angle 17 at the bottom.
[0026] When in use, the printer toner blade is easy to install and use, so that the toner blade body 1 is tightly pressed against the surface of the magnetic roller, achieving uniform toner dispensing without damaging the printer magnetic roller.
[0027] For example, such as Figure 1 , 3 As shown, the present invention also includes a strip-shaped sliding hole 14 on the side plate 13 and a sliding rod 16 sliding inside the strip-shaped sliding hole 14, one end of the sliding rod 16 being heat-fused to a movable plate 4.
[0028] In use, the slide bar 16 slides within the strip-shaped sliding hole 14 to improve the stability of the movable plate 4 in vertical movement and reduce the shaking of the powder discharge blade body 1.
[0029] For example, such as Figure 1 , 3 As shown, the present invention also includes a limiting sleeve 15 sleeved on the other end of the slide rod 16, and the limiting sleeve 15 is located outside the strip-shaped slide hole 14.
[0030] When in use, the limiting sleeve 15 serves to horizontally limit the sliding rod 16.
[0031] For example, such as Figure 1 As shown, the present invention also includes that both ends of the support spring 5 are respectively equipped with a movable plate 4 and a knife holder 6 via positioning plates 7 and positioning screws.
[0032] During use, the positioning piece 7 and positioning screws facilitate the installation and removal of the support spring 5.
[0033] For example, such as Figure 1 As shown, the present invention also includes an adjusting bolt 8 installed on one side of the top of the outer jacket 12 through a screw hole.
[0034] During use, the exposed length of the inner telescopic plate 11 is adjusted by loosening the adjusting bolt 8, so that the powder discharge knife body 1 is in full contact with the surface of the magnetic roller sleeve.
[0035] For example, such as Figure 1 As shown, the present invention also includes a mounting hole 10 on the mounting foot plate 9, and a triangular reinforcing plate on the inner side of the connection between the outer sleeve plate 12 and the knife holder 6.
[0036] When in use, the mounting holes 10 on the mounting foot plate 9 and the matching bolts facilitate the installation of the printer toner blade into the printer. The triangular reinforcing plate is used to improve the strength of the connection between the outer plate 12 and the blade holder 6.
[0037] When in use, this utility model utilizes the mounting holes 10 on the mounting foot plate 9 and the matching bolts to facilitate the installation of the printer toner blade into the printer, and makes the bottom edge angle 17 of the toner blade body 1 contact the surface of the printer magnetic roller, which can control the thickness of the toner layer on the surface of the magnetic roller sleeve, so that the toner is rotated out evenly.
[0038] Adjust the exposed length of the inner telescopic plate 11 by loosening the adjusting bolt 8, so that the powder dispensing blade body 1 is in full contact with the surface of the magnetic roller sleeve. After adjustment, tighten the adjusting bolt 8 to fix the inner telescopic plate 11. Under the action of the support spring 5, the powder dispensing blade body 1 is pressed tightly against the surface of the magnetic roller, so as to achieve uniform powder dispensing and not damage the printer magnetic roller.
[0039] By using the slide bar 16 to slide within the strip-shaped sliding hole 14, the stability of the movable plate 4 during vertical movement is improved, and the shaking of the powder discharge blade body 1 is reduced.
[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A printer toner dispenser blade that is easy to install, characterized in that, The device includes a powder-discharging blade body (1), a movable plate (4), a blade holder (6), and an outer plate (12). The top two ends of the blade holder (6) are heat-fused to the outer plate (12), and an inner telescopic plate (11) is fitted inside the outer plate (12). The top of the inner telescopic plate (11) is heat-fused to the mounting foot plate (9). The bottom two ends of the blade holder (6) are connected to the movable plate (4) by support springs (5). The two ends of the blade holder (6) are bolted to the side plates (13). The bottom of the movable plate (4) is heat-fused to a U-shaped groove (2), and a powder-discharging knife body (1) is installed in the U-shaped groove (2) by a knife head fixing bolt (3). The powder-discharging knife body (1) is specifically made of PU material and has a blade angle (17) at the bottom.
2. The printer toner ejector blade for easy installation according to claim 1, characterized in that, The side plate (13) has a strip-shaped sliding hole (14) and a sliding rod (16) slides inside the strip-shaped sliding hole (14). One end of the sliding rod (16) is heat-fused to a movable plate (4).
3. The printer toner dispenser blade for easy installation according to claim 2, characterized in that, The other end of the slide bar (16) is fitted with a limiting sleeve (15) and the limiting sleeve (15) is located outside the strip-shaped sliding hole (14).
4. The printer toner dispenser blade for easy installation according to claim 1, characterized in that, Both ends of the support spring (5) are respectively equipped with a movable plate (4) and a knife holder (6) via positioning plates (7) and positioning screws.
5. The printer toner dispenser blade for easy installation according to claim 1, characterized in that, An adjusting bolt (8) is installed on one side of the top of the outer jacket (12) through a screw hole.
6. The printer toner dispenser blade for easy installation according to claim 1, characterized in that, The mounting foot plate (9) is provided with mounting holes (10), and a triangular reinforcing plate is provided on the inner side of the connection between the outer sleeve plate (12) and the knife holder (6).