Toner cartridge rack with adjustable resistor

Abstract

The utility model discloses a selenium drum rack with an adjustable resistor, which comprises a selenium drum rack body, a first end cover is arranged at one end of the selenium drum rack body, a second end cover is arranged at the other end of the selenium drum rack body, the adjustable resistor is arranged in the first end cover, and the adjustable resistor is arranged in the second end cover. The conductive output end of the adjustable resistor is connected with a first conductive sheet, the first conductive sheet is movably and electrically connected with one end of a conductive roller arranged in the selenium drum rack body, a second conductive sheet is arranged in the first end cover, the conductive input end of the adjustable resistor is connected with the second conductive sheet, and the conductive output end of the adjustable resistor is movably and electrically connected with the conductive roller. And the second conducting strip is connected with an external power supply. In order to overcome the defects in the prior art, the utility model provides the selenium drum frame which is simple in structure, is provided with the adjustable resistor and can adjust the current in the conductive roller, so that the caking and adhesion of carbon powder are effectively reduced, and the moderate shade of the color of a printed image is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of selenium drums, in particular to a selenium drum frame with an adjustable resistor. Background Art

[0002] Toner cartridges, also known as photosensitive drums, are generally composed of a basic substrate made of aluminum and a photosensitive material coated on the substrate. In laser printers, more than 70% of the imaging components are concentrated in the toner cartridge, and the quality of printing is actually largely determined by the toner cartridge. The toner cartridge not only determines the quality of printing, but also determines how much money the user needs to spend during use.

[0003] The toner in the toner cartridge is a kind of charged fine resin particles. The charge of the toner is opposite to the charge on the surface of the toner cartridge. When the charged toner cartridge surface passes through the ink roller, the charged part adsorbs the toner particles, thus turning the latent image into a real image. While the toner cartridge is rotating at work, the printing system sends the printing paper over, and the printing paper carries a charge with the same polarity as the toner cartridge surface but much stronger. Then the paper passes through the toner cartridge with toner, and the toner on the toner cartridge surface is attracted to the printing paper, and the image is formed on the surface of the paper. At this time, the toner and the printing paper are combined together only by the attraction of the charge. Before the printing paper is sent out of the printer, it is heated at high temperature, the toner is melted, and solidified on the surface of the paper during the cooling process. After the toner is attached to the printing paper, the surface of the toner cartridge continues to rotate, and passes through a cleaner to remove the remaining toner so as to enter the next printing cycle.

[0004] In the existing toner cartridge, the current of the conductive roller is not adjustable. When the current is too large, the carbon powder is easy to clump and adhere to the surface of the conductive roller, resulting in poor discharge, which reduces the service life of the conductive roller. In addition, too high or too low current will also cause the image color to be too dark or too light. Utility Model Content

[0005] The utility model aims to overcome the deficiencies in the prior art and to provide a toner cartridge frame with a simple structure and an adjustable resistor, which can adjust the current in the conductive roller, thereby effectively reducing the agglomeration and adhesion of carbon powder and ensuring that the printed image has a moderate color depth.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following scheme: a toner drum frame with an adjustable resistor, characterized in that: it includes a toner drum frame body, a first end cover is provided on one end of the toner drum frame body, a second end cover is provided on the other end of the toner drum frame body, an adjustable resistor is provided in the first end cover, the conductive output end of the adjustable resistor is connected to a first conductive sheet, the first conductive sheet is movably electrically connected to one end of a conductive roller arranged in the toner drum frame body, a second conductive sheet is provided in the first end cover, the conductive input end of the adjustable resistor is connected to the second conductive sheet, and the second conductive sheet is connected to an external power supply.

[0007] As another improvement of the toner cartridge frame with an adjustable resistor of the utility model, a mounting groove is provided in the first end cover, and the adjustable resistor is clamped in the mounting groove.

[0008] As another improvement of the toner cartridge frame with an adjustable resistor of the utility model, a reinforcing rib is provided inside the first end cover, and the assembly groove is provided on the reinforcing rib.

[0009] As another improvement of the toner drum frame with an adjustable resistor of the utility model, the first end cover includes a bottom cover and an outer cover, a docking boss is provided on the bottom cover, a docking sleeve is provided at a position corresponding to the docking boss on the outer cover, and the docking boss is inserted into the docking sleeve.

[0010] As another improvement of the toner cartridge frame with adjustable resistor of the utility model, a positioning protrusion is provided on one side of the bottom cover, a positioning notch is provided at a position of the outer cover corresponding to the positioning protrusion, and the positioning protrusion is arranged in the positioning notch.

[0011] As another improvement of the toner drum frame with adjustable resistor of the utility model, a developing roller accommodating groove and a toner conveying screw mounting groove are arranged in the toner drum frame body at intervals along the length direction, and a cleaning sponge strip is provided between the developing roller accommodating groove and the toner conveying screw mounting groove.

[0012] As another improvement of the toner drum frame with adjustable resistor of the utility model, a toner conveying screw is arranged in the toner conveying screw installation groove, and a powder lever is hingedly connected to the side of the toner conveying screw installation groove away from the developing roller accommodating groove.

[0013] As another improvement of the toner cartridge frame with an adjustable resistor of the utility model, hinged seats are arranged at intervals along the length direction in the carbon powder conveying screw mounting groove, the powder moving rod includes a powder moving rod body, bent portions are respectively provided at both ends of the powder moving rod body, a hinged portion is provided on the outer end of the bent portion, the hinged portion is movably arranged in the hinged seat, and the bent portion can be lifted up when the carbon powder conveying screw rotates.

[0014] As another improvement of the toner drum frame with adjustable resistor of the utility model, a first assembly seat is provided on the first end cover, a second assembly seat is provided on the second end cover, and the conductive roller is arranged in the first assembly seat and the second assembly seat.

[0015] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0016] 1. The utility model has a simple structure. By adding an adjustable resistor in the first end cover, it can effectively prevent the accumulation of carbon powder electrons caused by the conductive roller circuit being too large, resulting in the occurrence of powder sticking, powder accumulation and poor discharge.

[0017] Second, the utility model makes the current size appropriate through the adjustable resistor, so that the color depth of the printed image is moderate and uniform.

[0018] 3. The adjustable resistor in the utility model is installed in the first end cover through the assembly groove, and the installation is convenient and quick. The bottom cover and the outer cover of the first end cover can be quickly connected through the docking protrusion and the docking sleeve column, and can be accurately positioned through the positioning protrusion and the positioning groove.

[0019] Fourth, the powder moving rod in the utility model can intermittently jump during the rotation of the carbon powder conveying screw, so that the carbon powder can be stirred. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 for Figure 1 An enlarged schematic diagram of the .

[0022] Figure 3 It is a partially enlarged schematic diagram of the utility model.

[0023] Figure 4 It is a three-dimensional schematic diagram of the outer cover of the utility model.

[0024] In the figure: 1. toner cartridge frame body; 2. first end cover; 21. bottom cover; 22. outer cover; 23. docking boss; 24. docking sleeve; 25. positioning convex block; 3. second end cover; 4. adjustable resistor; 5. first conductive sheet; 7. second conductive sheet; 8. assembly groove; 9. reinforcing rib; 10. developing roller accommodating groove; 11. toner powder conveying screw mounting groove; 12. cleaning sponge bar; 13. toner powder conveying screw; 14. powder moving rod; 141. powder moving rod body; 142. bending portion 143. hinged portion; 15. hinged seat; 16. first assembly seat; 17. second assembly seat. DETAILED DESCRIPTION

[0025] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0026] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0027] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0028] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] like Figure 1-4 As shown, a toner drum frame with an adjustable resistor includes a toner drum frame body 1, a first end cover 2 is provided on one end of the toner drum frame body 1, a second end cover 3 is provided on the other end of the toner drum frame body 1, an adjustable resistor 4 is provided in the first end cover 2, a conductive output end of the adjustable resistor 4 is connected to a first conductive sheet 5, the first conductive sheet 5 is movably electrically connected to one end of a conductive roller arranged in the toner drum frame body 1, a second conductive sheet 7 is provided in the first end cover 2, a conductive input end of the adjustable resistor 4 is connected to the second conductive sheet 7, and the second conductive sheet 7 is connected to an external power supply.

[0030] The utility model has a simple structure. By adding an adjustable resistor in the first end cover, it can effectively prevent the accumulation of carbon powder electrons caused by the excessive conductive roller circuit, resulting in sticking powder, powder accumulation and poor discharge. The adjustable resistor makes the current size appropriate, so that the color depth of the printed image is moderate and uniform.

[0031] In the utility model, a mounting groove 8 is provided in the first end cover 2, and the adjustable resistor 4 is clamped in the mounting groove 8. In the utility model, the adjustable resistor is installed in the first end cover through the mounting groove, and the installation is convenient and quick.

[0032] In the present invention, a reinforcing rib 9 is provided in the first end cover 2, and the assembly groove 8 is provided on the reinforcing rib 9. The circuit board of the adjustable resistor 4 is clamped in the assembly groove 8, and one side of the circuit board of the adjustable resistor 4 abuts against the wall surface of the first end cover 2.

[0033] The first end cover 2 of the utility model includes a bottom cover 21 and an outer cover 22. A docking boss 23 is provided on the bottom cover 21. A docking sleeve 24 is provided at a position corresponding to the docking boss 23 on the outer cover 22. The docking boss 23 is inserted into the docking sleeve 24. A positioning convex block 25 is provided on one side of the bottom cover 21. A positioning notch 26 is provided at a position corresponding to the positioning convex block 25 on the outer cover 22. The positioning convex block 25 is arranged in the positioning notch 26. The bottom cover and the outer cover of the first end cover can be quickly connected through the docking boss and the docking sleeve, and can be accurately positioned through the positioning convex block and the positioning notch.

[0034] In the utility model, a developing roller accommodating groove 10 and a toner conveying screw mounting groove 11 are arranged at intervals along the length direction in the toner drum frame body 1, and a cleaning sponge strip 12 is arranged between the developing roller accommodating groove 10 and the toner conveying screw mounting groove 11.

[0035] The utility model is provided with a toner conveying screw 13 in the toner conveying screw installation groove 11, and a powder lever 14 is hingedly connected to the side of the toner conveying screw installation groove 11 away from the developing roller accommodating groove 10. Articulated seats 15 are arranged at intervals along the length direction in the toner conveying screw installation groove 11, and the powder lever 14 includes a powder lever body 141, and bending parts 142 are respectively provided at both ends of the powder lever body 141, and a hinge part 143 is provided on the outer end of the bending part 142. The hinge part 143 is movably arranged in the hinge seat 15, and the toner conveying screw 13 can lift up the bending part 142 when it rotates. In the utility model, the powder lever can intermittently jump during the rotation process of the toner conveying screw, so that the toner can be stirred.

[0036] In the present invention, a first assembly seat 16 is provided on the first end cover 2 , a second assembly seat 17 is provided on the second end cover 3 , and the conductive roller is arranged in the first assembly seat 16 and the second assembly seat 17 .

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A toner drum holder with an adjustable resistor, characterized in that: The invention comprises a selenium drum frame body (1), a first end cover (2) is provided at one end of the selenium drum frame body (1), a second end cover (3) is provided at the other end of the selenium drum frame body (1), an adjustable resistor (4) is provided in the first end cover (2), a conductive output end of the adjustable resistor (4) is connected to a first conductive sheet (5), the first conductive sheet (5) is movably electrically connected to one end of a conductive roller arranged in the selenium drum frame body (1), a second conductive sheet (7) is provided in the first end cover (2), a conductive input end of the adjustable resistor (4) is connected to the second conductive sheet (7), and the second conductive sheet (7) is connected to an external power source.

2. A toner drum holder with an adjustable resistor according to claim 1, characterized in that: An assembly groove (8) is provided in the first end cover (2), and the adjustable resistor (4) is clamped in the assembly groove (8).

3. A toner drum holder with an adjustable resistor according to claim 2, characterized in that: A reinforcing rib (9) is provided inside the first end cover (2), and the assembly groove (8) is provided on the reinforcing rib (9).

4. A toner drum holder with an adjustable resistor according to claim 1, characterized in that: The first end cover (2) comprises a bottom cover (21) and an outer cover (22), a docking boss (23) being provided on the bottom cover (21), a docking sleeve column (24) being provided at a position corresponding to the docking boss (23) on the outer cover (22), and the docking boss (23) being inserted into the docking sleeve column (24).

5. A toner drum holder with an adjustable resistor according to claim 4, characterized in that: A positioning protrusion (25) is provided on one side of the bottom cover (21), and a positioning notch (26) is provided on the outer cover (22) at a position corresponding to the positioning protrusion (25), and the positioning protrusion (25) is arranged in the positioning notch (26).

6. The toner drum holder with adjustable resistor according to claim 3, characterized in that: A developing roller accommodating groove (10) and a toner conveying screw mounting groove (11) are arranged at intervals along the length direction in the toner drum frame body (1), and a cleaning sponge strip (12) is provided between the developing roller accommodating groove (10) and the toner conveying screw mounting groove (11).

7. A toner drum holder with an adjustable resistor according to claim 6, characterized in that: A toner conveying screw (13) is provided in the toner conveying screw installation groove (11), and a powder moving rod (14) is hingedly connected to a side of the toner conveying screw installation groove (11) away from the developing roller accommodating groove (10).

8. The toner drum holder with adjustable resistor according to claim 7, characterized in that: Hinge seats (15) are arranged at intervals along the length direction in the carbon powder conveying screw installation groove (11); the powder moving rod (14) comprises a powder moving rod body (141); bending portions (142) are respectively provided at both ends of the powder moving rod body (141); a hinge portion (143) is provided on the outer end of the bending portion (142); the hinge portion (143) is movably arranged in the hinge seat (15); and the carbon powder conveying screw (13) can lift up the bending portion (142) when rotating.

9. The toner drum holder with adjustable resistor according to claim 1, characterized in that: A first assembly seat (16) is provided on the first end cover (2), a second assembly seat (17) is provided on the second end cover (3), and the conductive roller is arranged in the first assembly seat (16) and the second assembly seat (17).

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