Printer toner cartridge with dustproof function

Abstract

The utility model relates to the technical field of selenium drums, in particular to a printer selenium drum with a dustproof function. The dust removal assembly is installed in the dust removal cavity and comprises an inclined air guide piece, a semicircular air guide piece, a small air blower and a torsional spring, the semicircular air guide piece is fixed to the outer shell, an opening of the semicircular air guide piece faces the inlet, the inclined air guide piece is rotationally connected with the bottom of the semicircular air guide piece, and the torsional spring is installed at the rotational connection position of the inclined air guide piece and the semicircular air guide piece; the oblique air guide piece can be continuously driven to abut against the bottom of the printing cavity, the small air blower is fixed to the outer shell, an air outlet of the small air blower faces the semicircular air guide piece, and an air inlet is formed in the outer shell; a dustproof plate; and fluff dust removal strips. According to the utility model, through the cooperation of the semicircular air guide sheets, the inclined air guide sheets and the fluff dust removal strips, dust generated in the process that paper enters the toner cartridge can be cleaned in a multi-level manner, and the influence of the dust on the printing quality is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of selenium drum, specifically is a printer selenium drum with dustproof function. BACKGROUND

[0002] Selenium drum, also known as photosensitive drum, is a key component in laser printer, copier and fax machine and other equipment, when laser printer works, laser beam carrying the information of the file to be printed scans to selenium drum, the resistance of the light irradiation part changes, so that the latent image composed of electric charge is formed on the surface of selenium drum. At the same time, another transmission system sends the printing paper, the printing paper with the same polarity but much stronger electric charge on the surface of selenium drum, then the paper passes through the selenium drum with toner, the toner on the surface of selenium drum is attracted to the printing paper, forming an image. Finally, the toner and the printer are heated by high temperature, so that the plastic toner is melted, and is fixed on the surface of the paper during the cooling process. However, during use, dust will fall into the selenium drum from the gap between the selenium drum side and the protective cover, affecting the use of the selenium drum. At the same time, there is no dust treatment structure inside the selenium drum, which cannot remove the dust inside the selenium drum, cannot effectively protect the selenium drum from dust, is not conducive to the maintenance of the selenium drum, and affects the accurate use of the selenium drum.

[0003] Based on the above problems, the patent with the patent number CN213843779U discloses a selenium drum with dustproof function, which seals the inside of the selenium drum through the cooperation of the protective cover and the sealing strip, and absorbs the floating dust in the selenium drum through the dust absorption cover. The absorbed dust is filtered by the dust absorption net and is intercepted by the two layers of dust absorption net. The air is discharged from the two sides of the exhaust fan, and is discharged outside the selenium drum through the exhaust port, which is convenient for the dust protection inside the selenium drum and is conducive to the use of the selenium drum.

[0004] However, in the implementation of the above-mentioned selenium drum with dustproof function, it is found that at least the following problems exist. Although the cooperation of the dust absorption cover, the dust absorption net and the exhaust fan can quickly remove the floating dust in the selenium drum, the floating dust is still easy to adhere to the paper surface, and it is difficult to directly clean the floating dust on the paper surface. Secondly, when the paper enters the selenium drum, the outside air is communicated with the inside of the selenium drum, and the exhaust fan will suck the outside air into the selenium drum at this time, which will affect the accurate use of the selenium drum in a short time. UTILITY MODEL CONTENTS

[0005] (I) Technical problem solved

[0006] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, and to provide a printer selenium drum with dustproof function, which solves the problems raised in the above background.

[0007] (II) Technical scheme

[0008] In order to achieve the above object, the utility model provides a printer selenium drum with dustproof function, include: the shell body, the shell body is opened in the printing cavity and the ash removal cavity, the printing cavity is connected with the ash removal cavity, the shell is opened with the access port and the access port of printing cavity communication, selenium drum and printing assembly are all installed in the printing cavity, the ash removal assembly is installed in the ash removal cavity, the ash removal assembly includes the oblique air deflector, the semicircle air deflector, the small -size air blower and the torsional spring, the semicircle air deflector is fixed with the shell body and the opening place is towards the access port, the oblique air deflector is rotatably connected with the bottom of semicircle air deflector, the torsional spring is installed in the rotatable joint of oblique air deflector and semicircle air deflector, can continuously drive the oblique air deflector and the bottom of printing cavity and resist tightly, the small -size air blower is fixed with the shell body, and the air outlet of small -size air blower is towards semicircle air deflector, and the shell body is opened with the air inlet, the dustproof board is fixedly installed in the printing cavity and covers the air inlet, the lint ash removal strip is fixedly installed in the bottom of oblique air deflector and can continuously abut with the bottom in the shell body.

[0009] Optionally, the oblique air deflector is made of plastic material, the bottom edge of the oblique air deflector extends outward to form an L-shaped structure, the lint ash removal strip is fixed to the extended portion of the oblique air deflector, and the extended portion of the oblique air deflector abuts against the bottom of the shell body to be horizontal with the bottom of the shell body after abutting against the bottom of the shell body.

[0010] Optionally, the extended portion of the oblique air deflector is provided with a receiving groove, and a magnet is fixed to each of the extended portion of the oblique air deflector and the bottom of the shell body, and the lint ash removal strip can be partially embedded in the receiving groove.

[0011] Optionally, an extended baffle is fixed to one side of the oblique air deflector and the semicircle air deflector, and the extended baffle closes the gap between the oblique air deflector and the semicircle air deflector when the other side of the oblique air deflector abuts against the bottom of the shell body.

[0012] Optionally, a limiting baffle is arranged in the printing cavity of the shell body.

[0013] Optionally, a plurality of support skeletons are fixed to the oblique air deflector.

[0014] Optionally, an air guiding channel is formed between the plurality of support skeletons.

[0015] (Three) beneficial effects

[0016] Compared with the prior art, the utility model provides a printer selenium drum with dustproof function, which has the following beneficial effects:

[0017] 1. The utility model discloses a half circle air deflector, oblique air deflector and the synergistic cooperation of fluff dust removal strip can multi -level cleaning of the dust produced in the process of paper into the selenium drum, greatly reduce the influence of dust on the printing quality, solve the prior art, floating dust is easy to adhere on the paper, the floating dust on the paper is difficult to clean directly, secondly, when paper enters the selenium drum, the outside air is communicated with the selenium drum, and the exhaust fan will suck the outside air into the selenium drum at this time, which affects the accurate use of the selenium drum in a short time.

[0018] 2. The utility model discloses a oblique air deflector is plastic material, and the bottom of oblique air deflector extends and forms L type, and fluff dust removal strip is fixed at the extension of oblique air deflector, and the extension of oblique air deflector is tightly contacted with the bottom of the shell after the bottom of the shell, and the bottom of the shell is contacted closely, and there is no gap, which prevents the fluff dust removal strip from entering the printing cavity under the guidance of air flow, and secondly, the contact area of fluff dust removal strip and paper can be increased, and the dust removal effect is improved.

[0019] 3. The utility model discloses a fluff dust removal strip is fixed with magnet in the containing groove on the side away from the fluff, and the mutual attraction between the magnet can tightly adsorb the fluff dust removal strip in the containing groove, when needing to replace, only need to pull out, insert fluff dust removal strip, can realize quick installation. DRAWINGS

[0020] Figure 1 It is the three -dimensional structure schematic diagram of the utility model;

[0021] Figure 2 It is shown that Figure 1 It is the internal structure schematic diagram of the utility model;

[0022] Figure 3 It is shown that the structure schematic diagram of fluff dust removal strip and oblique air deflector;

[0023] Figure 4 It is shown that the structure schematic diagram of oblique air deflector.

[0024] In the drawing: 1, shell; 2, printing cavity; 3, dust removal cavity; 4, inlet; 5, access; 6, selenium drum; 7, oblique air deflector; 8, half circle air deflector; 9, small -size air blower; 10, torsional spring; 11, air inlet; 12, dustproof board; 13, fluff dust removal strip; 14, containing groove; 15, magnet; 16, extension air baffle; 17, limit baffle; 18, support framework; 19, air deflector channel. DETAILED DESCRIPTION

[0025] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0026] Embodiment: please refer to Figures 1 to 4 According to the embodiment of the present utility model, a technical scheme is provided: a printer selenium drum with dustproof function, comprising: an outer shell 1, a printing cavity 2 and an ash removal cavity 3 are formed in the outer shell 1, the printing cavity 2 is communicated with the ash removal cavity 3, an inlet 4 and an outlet 5 communicated with the printing cavity 2 are formed on the outer shell, a selenium drum 6 and a printing assembly are both installed in the printing cavity 2; an ash removal assembly is installed in the ash removal cavity 3, the ash removal assembly comprises a slanting air deflector 7, a semicircular air deflector 8, a small air blower 9 and a torsional spring 10, the semicircular air deflector 8 is fixed with the outer shell 1 and the opening thereof faces the inlet 4, the slanting air deflector 7 is rotatably connected with the bottom of the semicircular air deflector 8, the torsional spring 10 is installed at the rotatable connection between the slanting air deflector 7 and the semicircular air deflector 8, the slanting air deflector 7 can be continuously driven to abut against the bottom of the printing cavity 2, the small air blower 9 is fixed with the outer shell 1, the air outlet of the small air blower 9 faces the semicircular air deflector 8, and an air inlet 11 is formed on the outer shell 1; a dustproof plate 12 is fixedly installed in the printing cavity 2 and covers the air inlet 11; a lint ash removal strip 13 is fixedly installed at the bottom of the slanting air deflector 7 and can continuously abut against the bottom of the outer shell 1.

[0027] The printer selenium drum 6 with dustproof function adopts the above structure, when the printer is started and the paper is ready to enter the printing cavity 2 from the inlet 4 of the outer shell 1, the small air blower 9 is started synchronously to generate airflow and blow towards the semicircular air deflector 8. At this time, if the external air with dust enters together, the semicircular air deflector 8 will preliminarily guide and converge the airflow, change the airflow direction to make it rush to the slanting air deflector 7, blow away the external air and the floating dust on the paper to the outside of the inlet 4, and then the floating dust on the paper enters the printing cavity 2 in the external air. After that, under the action of the torsional spring 10, the lint ash removal strip 13 on the slanting air deflector 7 closely adheres to the bottom of the printing cavity 2 along with the action of the slanting air deflector 7 to clean the floating dust on the surface of the paper for the second time. At the same time, the dustproof plate 12 filters the air entering from the air inlet 11 to ensure that the air entering the inside of the selenium drum 6 is relatively clean, maintain the stable working environment in the inside of the selenium drum 6, and guarantee the accurate use of the selenium drum 6 and the printing assembly.

[0028] The structure can clean dust in multiple levels generated in the process of paper entering the selenium drum 6 through the cooperation of the semi-circular air guide sheet 8, the oblique air guide sheet 7 and the lint dust removal strip 13, greatly reduces the influence of dust on the printing quality, solves the problem that in the prior art, floating dust is easily attached to the paper surface, and it is difficult to directly clean the floating dust on the paper surface, and secondly, when the paper enters the selenium drum 6, the outside air is communicated with the selenium drum 6, the exhaust fan will suck the outside air into the selenium drum 6 at this time, which affects the accurate use of the selenium drum 6 in a short time.

[0029] The oblique air guide sheet 7 is made of plastic material, the bottom edge of the oblique air guide sheet 7 extends outward to form an L-shaped structure, the lint dust removal strip 13 is fixed at the extended part of the oblique air guide sheet 7, and the extended part of the oblique air guide sheet 7 is in close contact with the inner bottom of the outer shell 1 after abutting against the inner bottom of the outer shell 1, the bottom edge of the oblique air guide sheet 7 extends outward to form an L-shaped structure, which can be best fitted with the contour of the inner bottom of the outer shell 1 and closely contact with the bottom of the outer shell 1 without leaving any gap, preventing the air flow from entering the printing cavity 2 along the lint dust removal strip 13, and secondly, the contact area between the lint dust removal strip 13 and the paper can be increased, and the dust removal effect can be improved.

[0030] The extended part of the oblique air guide sheet 7 is provided with a containing groove 14, and a magnet 15 is fixed in the containing groove 14 and on the side of the lint dust removal strip 13 away from the lint, and the lint dust removal strip 13 can be partially embedded in the containing groove 14, since a large amount of dust is easily attached to the lint dust removal strip 13 after a long time of use, the lint dust removal strip 13 needs to be replaced regularly, in order to facilitate replacement, a magnet 15 is fixed in the containing groove 14 and on the side of the lint dust removal strip 13 away from the lint, and the mutual attraction between the two magnets can tightly attract the lint dust removal strip 13 in the containing groove 14, and when replacement is needed, the lint dust removal strip 13 can be quickly installed by pulling out and inserting.

[0031] An extended air blocking sheet 16 is fixed on the side of the oblique air guide sheet 7 and the semi-circular air guide sheet 8 connected by rotation, when the other side of the oblique air guide sheet 7 abuts against the inner bottom of the outer shell 1, the extended air blocking sheet 16 closes the gap of the connection between the oblique air guide sheet 7 and the semi-circular air guide sheet 8, since there is a certain gap in the connection, dust is easily entered into the printing cavity 2 along the gap, pollutes the paper and affects the printing quality, and by arranging the extended air blocking sheet 16, when the other side of the oblique air guide sheet 7 abuts against the inner bottom of the outer shell 1, that is, the entire oblique air guide sheet 7 is in a normal working state, the extended air blocking sheet 16 can accurately close the gap of the connection, and block the possibility of dust entering from the gap.

[0032] A limiting baffle 17 is arranged in the printing cavity 2 of the outer shell 1, when the oblique air guide sheet 7 is excessively twisted, the limiting baffle 17 limits the oblique air guide sheet 7 from continuing to rotate, preventing the oblique air guide sheet 7 from being damaged due to excessive twisting.

[0033] In order to increase the bending resistance of the inclined air guide sheet 7 made of plastic material, a plurality of support skeletons 18 are fixed on the inclined air guide sheet 7, and an air guide channel 19 is formed between the plurality of support skeletons 18.

[0034] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A printer toner cartridge with dustproof function, characterized in that, The application relates to a dust removing device for a printer. The dust removing device comprises an outer shell (1) with a printing cavity (2) and a dust removing cavity (3) formed in the outer shell (1), wherein the printing cavity (2) is communicated with the dust removing cavity (3), an entrance (4) and an exit (5) of the printing cavity (2) are formed in the outer shell (1), and a selenium drum (6) and a printing assembly are arranged in the printing cavity (2); a dust removing assembly is arranged in the dust removing cavity (3), wherein the dust removing assembly comprises an oblique air guide sheet (7), a semicircular air guide sheet (8), a small air blower (9) and a torsional spring (10), the semicircular air guide sheet (8) is fixed to the outer shell (1) and opens towards the entrance (4), the oblique air guide sheet (7) is rotationally connected to the bottom of the semicircular air guide sheet (8), the torsional spring (10) is arranged at the rotationally connected position of the oblique air guide sheet (7) and the semicircular air guide sheet (8) and can continuously drive the oblique air guide sheet (7) to abut against the bottom of the printing cavity (2), the small air blower (9) is fixed to the outer shell (1) and has an air outlet opening towards the semicircular air guide sheet (8), and an air inlet (11) is formed in the outer shell (1); A dustproof plate (12) is fixedly arranged in the printing cavity (2) and covers the air inlet (11); A lint dust removing strip (13) is fixedly arranged at the bottom of the oblique air guide sheet (7) and can continuously abut against the bottom of the outer shell (1). The oblique air guide sheet (7) is made of plastic and has an L-shaped extension at the bottom edge, the lint dust removing strip (13) is fixed to the extension of the oblique air guide sheet (7), and the extension of the oblique air guide sheet (7) is horizontally abutted against the bottom of the outer shell (1) after abutting against the bottom of the outer shell (1).

2. The printer toner cartridge (6) with dustproof function according to claim 1, characterized in that: A containing groove (14) is arranged at the bottom of the extension of the oblique air guide sheet (7), a magnet (15) is arranged in the containing groove (14) and on the side of the lint dust removing strip (13) away from the lint, and the lint dust removing strip (13) can be partially embedded in the containing groove (14).

3. The printer toner cartridge (6) with dustproof function according to claim 2, characterized in that: An extension air blocking sheet (16) is fixed to the side of the oblique air guide sheet (7) rotationally connected to the semicircular air guide sheet (8), and the extension air blocking sheet (16) closes the gap between the oblique air guide sheet (7) and the semicircular air guide sheet (8) when the other side of the oblique air guide sheet (7) abuts against the bottom of the outer shell (1).

4. The printer toner cartridge (6) with dustproof function according to claim 1, characterized in that: A limiting baffle (17) is arranged in the printing cavity (2) of the outer shell (1).

5. The printer toner cartridge (6) with dustproof function according to claim 1, characterized in that: A plurality of supporting skeletons (18) are fixed to the oblique air guide sheet (7).

6. The printer toner cartridge (6) with dustproof function according to claim 1, characterized in that: Air guide channels (19) are formed between the supporting skeletons (18).

7. The printer toner cartridge (6) with dustproof function according to claim 6, characterized in that: ​

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