WO2013044790A1

WO2013044790A1 - Toner cartridge and laser printer

Info

Publication number: WO2013044790A1
Application number: PCT/CN2012/081964
Authority: WO
Inventors: 杨晓锋
Original assignee: 珠海天威飞马打印耗材有限公司
Priority date: 2011-09-27
Filing date: 2012-09-26
Publication date: 2013-04-04
Also published as: CN202257041U

Abstract

A toner cartridge and a laser printer. The toner cartridge comprises a toner bin (1) for accommodating toner and a stirrer (2). The stirrer (2) is arranged inside the toner bin (1). The stirrer (2) comprises a stirring center shaft (21) and a stirring frame (22). The toner bin (1) is provided with an inclined plane (12) located at a toner outlet (11) in communication with a development bin (3). A deformable component (4) is arranged on the inclined plane (12). The deformable component (4) extends along the inclined plane (12) towards the inside of the toner bin (1). A distal end, opposite the stirring center shaft (21), of the stirring frame (22) is connected to a stirring blade (23). The stirring blade (23) is partially arranged in the toner bin (1), and contacts an inner wall of the toner bin (1). When rotating along with the stirring frame (22), the stirring blade (23) contacts the deformable component (4).

Description

Toner cartridge and laser printer

Technical field

The present invention relates to the field of printing equipment, and in particular to a toner cartridge and a laser printer for supplying toner to a laser printer. The present application claims priority to Chinese Patent Application No. 201120374580.2, entitled "A Toner Cartridge and Laser Printer", filed on Sep. 27, 2011, the entire contents of .

Background technique

The amount of waste toner of the toner cartridge in the prior art is large, and the toner is easily accumulated in the powder box, so that the printing effect is not good.

As described in U.S. Patent 6,771,922, LEX The T series toner cartridge powder bin includes four walls of upper, lower, left and right to form a toner receiving chamber, wherein the lower wall of the powder bin stops at about 1/3 of the height of the powder bin, and forms a A plane inclined slightly to the lower right, the inclined plane and the upper wall together form a powder outlet, and the entire powder silo is substantially cylindrical. A mixing rack is rotatably disposed in the powder silo to agitate the toner in the powder silo. Under the agitation, part of the carbon powder moves toward the powder outlet, the mixing rack includes a rotating central axis, and a width along the powder silo An externally stirred powder rack that extends over the range. Because both materials are injection molded parts and the shape of the powder bin is limited, if the height dimension of the outer mixing frame is not controlled accurately, the distance of the outer mixing frame from the lower surface of the powder bin will be too large, which will increase the amount of waste powder. If the distance is too small, it will interfere with the agglomeration process; at the powder outlet, when the toner is conveyed to the above inclined plane, and the inclination angle is limited, the toner here will be in a relatively static state. It is difficult to transfer to the surface of the powder feed roller, which will cause the toner to accumulate and agglomerate.

In the other prior art, the defects of the existing powder feeding structure are not solved, thereby affecting the printing quality.

technical problem

The technical problem to be solved by the present invention is to provide a toner cartridge which can prevent the toner from accumulating or even accumulating on the inclined plane at the powder discharge port, in view of the defects in the toner cartridge which are liable to cause toner accumulation.

Another technical problem to be solved by the present invention is to provide a laser printer having the above toner cartridge.

Technical solution

The technical solution adopted by the present invention to solve the above first technical problem is to provide a toner cartridge including a toner cartridge for accommodating carbon powder and a stirrer rotatably disposed inside the toner hopper. The toner hopper has a powder discharge port to the developing chamber, and an inclined plane is formed at the powder outlet, the agitator includes a stirring central shaft and a stirring frame, wherein the inclined plane is provided with a deformable a member extending along the inclined plane toward the toner hopper; a stirring blade is connected to a distal end of the stirring frame with respect to the stirring central axis, and the stirring blade is agitated with the stirring The frame can be in contact with the deformable member when rotated.

According to the toner cartridge of the present invention, the agitating blade is in contact with the inner wall of the toner hopper to overcome the defect that the height of the agitating frame in the toner cartridge is difficult to control and affect powder or agitation. Reduce the amount of toner in the toner bin.

According to the toner cartridge of the present invention, the agitating blade is a plurality of rectangular blades fixed in a line on the agitating frame.

According to the toner cartridge of the present invention, the agitating blade is fixed to the agitating frame by sticking or heat fusion.

According to the toner cartridge of the present invention, the deformable member includes a plurality of holes through which toner can pass.

According to the toner cartridge of the present invention, the portion of the deformable member that extends into the toner hopper is a plurality of T-shaped blades arranged in an inline shape, and a rectangular hole is formed between the adjacent T-shaped blades.

According to the toner cartridge of the present invention, the deformable member is fixed to the inclined plane by sticking or heat fusion. The deformable member may be a PET film sheet.

In order to solve the above second technical problem, the present invention also provides a laser printer comprising any of the toner cartridges described above.

Beneficial effect

The invention has the beneficial effects that the invention adds a stirring blade to the mixing frame of the toner cartridge, and is provided with a deformable member on the inclined plane formed at the powder discharging port of the toner cartridge, and the stirring blade is provided with the stirring frame. When rotating, it can be in contact with the deformable member, and the interaction force between the two causes the deformable member to move relative to each other, preventing the toner from accumulating or even accumulating on the inclined plane at the powder outlet.

DRAWINGS

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:

1 is a schematic view showing the internal structure of an embodiment of a toner cartridge of the present invention;

Figure 2 is a partial enlarged view of A of Figure 1;

Figure 3 is a schematic view showing the internal structure of the toner cartridge shown in Figure 1;

Figure 4 is a cross-sectional view of the toner cartridge shown in Figure 1.

Embodiments of the invention

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in FIG. 1, the toner cartridge of the embodiment of the present invention mainly includes a toner hopper 1 for accommodating carbon powder, and the toner cartridge further includes a rotatably disposed inside the toner hopper 1 for agitating the toner. Blender 2.

As shown in Fig. 3, the toner hopper 1 is provided with a powder discharge port 11 for discharging toner, which communicates with the developing chamber 3. The agitator 2 conveys the carbon powder to the powder discharge port 11 while stirring the carbon powder. The agitator 2 includes a stirring center shaft 21, a stirring frame 22, and a driving device 24, and the driving device 24 is disposed at one side of the toner hopper 1, and the stirring center shaft 21 is rotatably supported between the opposite side walls of the toner hopper 1 And connected to the driving device on the toner cartridge 1 side, the driving device 24 is used to drive the rotation of the stirring center shaft 21. The agitator 22 is attached to the agitation center shaft 21, and can be rotated in accordance with the rotation of the agitation center shaft 21 to feed the toner to the powder outlet 11. Among them, the agitating frame 22 may be made of a material such as ABS (acrylonitrile-butadiene-styrene) resin, which may be integrally formed with the stirring center shaft 21.

The lower wall of the toner hopper 1 forms an inclined plane 12 with the developing chamber 3 (adjacent to the toner hopper 1) in the direction of the powder outlet 11, and is formed in the toner hopper 1 along the direction of the powder outlet 11 and the developing chamber 3. The inclined plane 12 is provided with a deformable member 4 extending along the inclined plane 12 into the toner cartridge 1. The deformable member 4 can be fixed or heat-fused to the inclined plane 12, and the deformable member 4 can be deformed. It may be a PET film sheet having a certain thickness and flexibility.

A stirring blade 23 is connected to the distal end of the stirring frame 22 with respect to the stirring center shaft 21, and the stirring blade 23 is disposed opposite to the deformable member 4, and the stirring blade 23 is partially disposed in the toner hopper 1 with the toner hopper 1 When the inner wall is in contact, the carbon powder on the inner wall can also be swept into the toner hopper 1 and sent to the developing chamber 3, thereby greatly reducing the amount of residual powder in the toner hopper 1. The agitating blade 23 is in contact with the deformable member 4 as it rotates with the agitating frame 22, generating an interaction force, and the deformable member 4 generates a relative movement, thereby shaking the carbon powder deposited on the inclined plane 12 to prevent carbon. The accumulation of powder on the inclined plane 12 even accumulates. The stirring blade 23 can be attached to the stirring frame 22 by means of bonding or hot melt, and it can also be a PET film sheet having a certain thickness and flexibility.

In one embodiment of the present invention, as shown in FIG. 2 simultaneously with reference to FIG. 4, the agitating blades 23 in the toner cartridge may be a plurality of rectangular blades fixed in a line on the agitating frame 22. A plurality of blades can better contact the inner wall of the toner hopper 1 to better reduce the amount of residual powder.

Further, in the embodiment of the present invention, as shown in FIG. 2, the deformable member 4 includes a plurality of holes 41 through which the toner can pass, so that the toner on the deformable member 4 is more likely to fall into the toner through the hole 41. Inside the bin 1 or into the developing chamber 3. The deformable member 4 can be composed of a plurality of regular portions, and circular or square holes can be provided in each portion. The shape of the holes 41 can of course be arbitrarily set, and the size can be designed according to actual conditions, mainly for facilitating the passage of toner. .

Further, in the embodiment of the present invention, as shown in FIG. 2 simultaneously with reference to FIG. 4, the portion of the deformable member 4 extending into the toner hopper 1 is a plurality of T-shaped blades arranged in a line, adjacent to the T shape. A rectangular hole 41 is formed between the blades. The length of the deformable member 4 may be extended depending on the contact with the agitating blade 23, and the toner on the inclined plane 12 may be shaken during contact with the agitating blade 23. The deformable member 4 includes a plurality of T-shaped blades which can enhance the deformability of the deformable member 4 and increase its flexibility.

The above toner cartridge can be applied to a laser printer, which can improve the printing quality of the laser printer, and can reduce the waste of the toner and save the cost. A laser printer using the above toner cartridge should fall within the scope of the present invention.

According to the present invention, by adding the stirring blade 23 to the mixing frame 22 of the toner cartridge to make contact with the bottom of the toner hopper 1, the amount of residual powder in the toner cartridge can be reduced to a large extent; The inclined plane 12 formed in the direction of the powder opening 11 and the developing chamber 3 is provided with a deformable member 4 which is in contact with the deformable member 4 as the stirring blade 23 rotates with the stirring frame 22, and the two generate an interaction force to make the deformable member 4 Relative movement occurs to prevent the accumulation or even accumulation of toner on the inclined plane at the powder outlet.

The present invention has been described in terms of a particular embodiment, and it will be understood by those skilled in the art that various changes and equivalents can be made without departing from the scope of the invention. In addition, many modifications may be made to the invention without departing from the scope of the invention. Therefore, the invention is not limited to the specific embodiments disclosed herein, but includes all embodiments falling within the scope of the claims.

Industrial applicability

The toner cartridge and the laser printer of the present invention can be manufactured and used industrially, and the amount of residual powder in the toner hopper can be reduced to a large extent, and at the same time, the carbon powder is prevented from being deposited on the inclined plane at the powder outlet. Blocks. Therefore, the present invention has industrial applicability.

Claims

a toner cartridge comprising a toner hopper for accommodating the toner and a stirrer rotatably disposed inside the toner hopper, the toner hopper having a powder outlet to the developing chamber, the powder discharging An inclined plane is formed at the mouth, and the agitator includes a stirring center shaft and a stirring frame, and is characterized by:

Forming a deformable member on the inclined plane, the deformable member extending toward the toner cartridge along the inclined plane;

An agitating blade is coupled to a distal end of the agitating frame relative to the agitating central axis, the agitating blade being in contact with the deformable member as it rotates with the agitator.
The toner cartridge according to claim 1, wherein the agitating blade is in contact with an inner wall of the toner hopper.
The toner cartridge according to claim 1 or 2, wherein the agitating blade is a plurality of rectangular blades fixed in a line on the agitating frame.
The toner cartridge according to claim 1 or 2, wherein the agitating blade is fixed to the agitating frame by means of gluing or hot melt.
A toner cartridge according to claim 1, wherein said deformable member comprises a plurality of holes through which toner can pass.
The toner cartridge according to claim 5, wherein the portion of the deformable member that extends into the toner hopper is a plurality of T-shaped blades arranged in an in-line shape adjacent to the T-shaped blade. A rectangular hole is formed therebetween.
A toner cartridge according to claim 1, wherein said deformable member is fixed to said inclined plane by means of pasting or heat fusion.
A toner cartridge according to claim 1, wherein said deformable member is a PET film sheet.
A laser printer characterized by having the toner cartridge according to any one of claims 1 to 8.