CN202189233U

CN202189233U - Developing box capable of controlling powder outlet amount

Info

Publication number: CN202189233U
Application number: CN201120280921XU
Authority: CN
Inventors: 周宏辉; 颜育文
Original assignee: Print Rite Unicorn Image Products Co Ltd
Current assignee: Print Rite Unicorn Image Products Co Ltd
Priority date: 2011-08-04
Filing date: 2011-08-04
Publication date: 2012-04-11
Anticipated expiration: 2021-08-04

Abstract

The utility model relates to a developing box capable of controlling a powder outlet amount. The developing box comprises a lower main body and an upper main body, wherein the lower main body is provided with an outer shell; the outer shell is provided with an opening which is formed under a photosensitive drum and faces to the photosensitive drum; a developing chamber, a developing roller, a color toner holding chamber and an allocation chamber are arranged in the outer shell, wherein a developing agent formed by a color toner and a carrier is held in the developing chamber; the developing roller is supported by the peripheral wall of the outer shell; the color toner holding chamber is used for holding the color toner; the allocation chamber is next to the color toner holding chamber; an allocating spiral conveying component is arranged in the allocation chamber; and the allocation chamber is provided with a powder inlet corresponding to a developing agent holding chamber and a powder outlet corresponding to the developing chamber. The amount of the color toner from the allocation chamber to the developing chamber is controlled by setting the sizes of the powder outlet and the powder inlet so as to prevent that the content of the color toner in the developing chamber is too much and avoid the blocking situation of the color toner.

Description

A kind of Delevoping cartridge of controlled powder outlet quantity

Technical field

The utility model relates to art of laser printers, more particularly, relates to the Delevoping cartridge of a kind of controlled powder outlet quantity that is used for laser printer.

Background technology

Laser printer is one of present most widely used computing machine output peripheral equipment, and it utilizes the physics, the principles of chemistry of light, electricity, heat through interaction output character or image.Basic process can be divided into seven steps such as charging, exposure, development, transfer printing, photographic fixing, the electricity that cleans, disappears.At first, photosensitive drum surface is charged by charging roller equably.Laser scanner is launched the laser through ovennodulation that contains image information to photosensitive drums, forms and the electrostatic latent image of treating that duplicating image is corresponding at photosensitive drum surface.Then, from the carbon dust of developer roll then be adsorbed on and make electrostatic latent image convert visual image on the photosensitive drum surface.Along with the rotation of photosensitive drums and the positive voltage effect that the recording medium back sides such as paper is applied through transfer roll; Electronegative carbon dust to formed visual image at photosensitive drum surface produces attractive force, and the visual image that is formed by carbon dust promptly is transferred on the recording medium such as paper.Get into the photographic fixing assembly that warm-up mill and backer roll form subsequently, carbon powder particles fuses in the fiber of recording medium under the effect of heat and pressure, so the visual image full solidification that carbon dust forms is on recording medium.So basic imaging action has just been accomplished.

In the Delevoping cartridge of jump type developing, carbon dust is sent to from the powder storehouse before developing room fully mixes carbon dust and carrier through the powder feeding structure, is necessary the powder outlet quantity in powder storehouse is controlled, and is too much and cause obstruction with the carbon powder content of avoiding developing chamber.

The utility model content

The technical matters that the utility model will solve is, to the above-mentioned defective that the Delevoping cartridge of prior art exists, a kind of Delevoping cartridge of controlled powder outlet quantity is provided, and this Delevoping cartridge can be controlled the amount of the toner from the distributor chamber to the developing room.

The utility model solves the technical scheme that its technical matters adopted: the Delevoping cartridge of constructing a kind of controlled powder outlet quantity; Said Delevoping cartridge comprises lower body and upper body; Said lower body has shell; Said shell has below of the photosensitive drums of being arranged on and the opening that opens wide towards photosensitive drums, is formed with developing room in the said shell, and said developing room accommodates the developer that is made up of toner and carrier;

Be provided with developer roll in the said shell, said developer roll is supported by the perisporium of said shell;

Also be provided with the toner accommodating chamber that is used to hold toner in the said shell, and the distributor chamber of adjacent said toner accommodating chamber, be provided with the distributing auger transmission parts in the said distributor chamber,

Said distributor chamber has corresponding to the powder inlet of said developer-accommodating chamber with corresponding to the meal outlet of developing room.

In the Delevoping cartridge of the described controlled powder outlet quantity of the utility model; Observe to the direction of end, powder inlet place by end, meal outlet place; The spiral of said distributing auger transmission parts end of end to meal outlet from powder inlet place is dextrorotation, and the spiral from the end, end to meal outlet place of meal outlet is left-handed.

In the Delevoping cartridge of the described controlled powder outlet quantity of the utility model; The parallel first spiral transmission parts and the second spiral transmission parts of being provided with in the said developing room; The said first spiral transmission parts is near said meal outlet, and the said second spiral transmission parts is near said developer roll.

In the Delevoping cartridge of the described controlled powder outlet quantity of the utility model, be formed with the waste powder hopper that is used to accommodate useless powder in the said upper body.

In the Delevoping cartridge of the described controlled powder outlet quantity of the utility model, be provided with cleaning doctor in the said upper body, said cleaning doctor contacts with said photosensitive drums.

Implement the Delevoping cartridge of the controlled powder outlet quantity of the utility model; Has following beneficial effect: in the novel Delevoping cartridge of this reality; The distributor chamber of Delevoping cartridge has corresponding to the powder inlet of developer-accommodating chamber with corresponding to the meal outlet of developing room, through the size of powder inlet and meal outlet is set, can control the amount that is assigned to the toner of developing room from distributor chamber; Thereby prevent that the toner content in the developing room is too much, avoid occurring the situation that toner stops up.

Description of drawings

To combine accompanying drawing and embodiment that the utility model is described further below, in the accompanying drawing:

Fig. 1 is the stereographic map of preferred embodiment of Delevoping cartridge of the controlled powder outlet quantity of the utility model;

Fig. 2 is the cut-open view of preferred embodiment of Delevoping cartridge of the controlled powder outlet quantity of the utility model;

Fig. 3 is the synoptic diagram after the preferred embodiment upset of Delevoping cartridge of controlled powder outlet quantity of the utility model;

Fig. 4 is the synoptic diagram that removes among the dextrorotation embodiment of Delevoping cartridge of controlled powder outlet quantity of the utility model behind the shell of lower body.

Embodiment

Understand for technical characterictic, purpose and effect to the utility model have more clearly, contrast the embodiment that accompanying drawing specifies the utility model at present.

To shown in Figure 4, be a dextrorotation embodiment of the Delevoping cartridge of the controlled powder outlet quantity of the utility model like Fig. 1, this Delevoping cartridge comprises lower body 1 and upper body 2.Wherein, lower body 1 has shell 100, and shell 100 has below of photosensitive drums of being arranged on 120 and the opening 101 that opens wide towards photosensitive drums 120; The developing room 110 of Delevoping cartridge is formed at shell 100, and the developer container that is made up of toner and carrier is contained in this developing room 110; The developer roll 130 of Delevoping cartridge is arranged in the shell 100; And by the perisporium rotary supporting of shell 100; Developer roll 130 has magnetic; Can attract the carrier in the developer, thereby form Magnetic brush, and will be attracted to toner on the carrier and be transported to the developing regional relative with photosensitive drums 120 on the surface of developer roll 130; Also be provided with toner accommodating chamber 140 in the shell 100 of lower body 1, this toner accommodating chamber 140 is used to hold toner; Also be provided with distributor chamber 150 in the shell 100 of lower body 1, this distributor chamber 150 is used for the toner in the toner accommodating chamber 140 is dispensed in the developing room 110 according to a certain amount of, is provided with distributing auger transmission parts 160 in the distributor chamber 150, is used to transmit toner; Amount for the toner of Control Allocation to developing room 110; Distributor chamber 150 is provided with corresponding to the powder inlet 151 of developer-accommodating chamber 140 with corresponding to the meal outlet 152 of developing room 110; Through the size of powder inlet 151 and meal outlet 152 is set; Can control the amount that is assigned to the toner of developing room 110 from distributor chamber 150, thereby prevent that the toner content in the developing room 110 is too much, avoid occurring the situation that toner stops up.

Referring to Fig. 4; In the present embodiment; For the toner maximal efficiency that will get into distributor chamber 150 be sent in the developing room 110, the distributing auger transmission parts 160 in the distributor chamber 150 are designed to two sections spiral opposite configuration, concrete; Observe to the direction of end, powder inlet 151 place by end, meal outlet 152 place; This distributing auger transmission parts 160 is dextrorotation from the spiral of end, powder inlet 151 place to the end of meal outlet 152, and the spiral from the end, end to meal outlet 152 place of meal outlet 152 is left-handed, when being got into toners in the distributor chambers 150 and be sent to meal outlet 152 places by powder inlet 151 by powder inlet 151 like this; Can not can only enter in the developing room 110 by meal outlet 152 again along the axial transmission of distributing auger transmission parts 160.

In the present embodiment; In order to make the toner that is dispensed to developing room 100 by distributor chamber 150 can be delivered to developer roll 130 stably; The parallel first spiral transmission parts 171 and the second spiral transmission parts 172 of being provided with in developing room 110; Wherein, the first spiral transmission parts 171 is near said meal outlet 152, and the said second spiral transmission parts 172 is near developer roll 130.

In the present embodiment; Be formed with the waste powder hopper 210 that is used to accommodate useless powder in the upper body 2 of Delevoping cartridge; Also be provided with cleaning doctor 220 in upper body 2; Cleaning doctor 220 contacts with photosensitive drums 120, is used to remove developer remaining on the photosensitive drums 120, and waste powder hopper 210 is removed the developer collecting that gets off with these and left.

In the novel Delevoping cartridge of this reality; The distributor chamber of Delevoping cartridge has corresponding to the powder inlet of developer-accommodating chamber with corresponding to the meal outlet of developing room; Through the size of powder inlet and meal outlet is set; Can control the amount that is assigned to the toner of developing room from distributor chamber, thereby prevent that the toner content in the developing room is too much, avoid occurring the situation that toner stops up.

Combine accompanying drawing that the embodiment of the utility model is described above; But the utility model is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Not breaking away under the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection of the utility model.

Claims

1. the Delevoping cartridge of a controlled powder outlet quantity; Said Delevoping cartridge comprises lower body (1) and upper body (2); Said lower body (1) has shell (100); Said shell (100) has below of photosensitive drums of being arranged on (120) and the opening (101) that opens wide towards photosensitive drums (120), is formed with developing room (110) in the said shell (100), and said developing room (110) accommodates the developer that is made up of toner and carrier;

Be provided with developer roll (130) in the said shell (100), said developer roll (130) is supported by the perisporium of said shell (100);

Also be provided with the toner accommodating chamber (140) that is used to hold toner in the said shell (100), and the distributor chamber (150) of adjacent said toner accommodating chamber (140), be provided with distributing auger transmission parts (160) in the said distributor chamber (150),

It is characterized in that,

Said distributor chamber (150) has corresponding to the powder inlet (151) of said developer-accommodating chamber (140) with corresponding to the meal outlet (152) of developing room.

2. the Delevoping cartridge of controlled powder outlet quantity according to claim 1; It is characterized in that; Observe to the direction of end, powder inlet (151) place by end, meal outlet (152) place; The spiral of said distributing auger transmission parts (160) end of end to meal outlet (152) from powder inlet (151) place is dextrorotation, and the spiral from the end, end to meal outlet (152) place of meal outlet (152) is left-handed.

3. the Delevoping cartridge of controlled powder outlet quantity according to claim 2; It is characterized in that; The parallel first spiral transmission parts (171) and the second spiral transmission parts (172) of being provided with in the said developing room (110); The said first spiral transmission parts (171) is near said meal outlet (152), and the said second spiral transmission parts (172) is near said developer roll (130).

4. the Delevoping cartridge of controlled powder outlet quantity according to claim 1 is characterized in that, is formed with the waste powder hopper (210) that is used to accommodate useless powder in the said upper body (2).

5. the Delevoping cartridge of controlled powder outlet quantity according to claim 4 is characterized in that, is provided with cleaning doctor (220) in the said upper body (2), and said cleaning doctor (220) contacts with said photosensitive drums (120).