CN2791705Y - Carbon dust box for laser printer - Google Patents
Carbon dust box for laser printer Download PDFInfo
- Publication number
- CN2791705Y CN2791705Y CN 200520057623 CN200520057623U CN2791705Y CN 2791705 Y CN2791705 Y CN 2791705Y CN 200520057623 CN200520057623 CN 200520057623 CN 200520057623 U CN200520057623 U CN 200520057623U CN 2791705 Y CN2791705 Y CN 2791705Y
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- pivot
- axial
- photosensitive drums
- teat
- laser printer
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- Electrophotography Configuration And Component (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
The utility model relates to a carbon powder box for a laser printer, which comprises a developing unit and a cleaning unit, wherein the developing unit is composed of a carbon powder chamber, a stirring rack, a developing roller and a developing plate; the cleaning unit is composed of a waste powder chamber 6, a photosensitive drum 3, a cleaning plate and a charging roller 4; the end of a connecting arm 21 of the developing unit is provided with a pivot shaft 24 to obtain a protrusion 22; the interconnection of the developing unit and the cleaning unit is realized by the match between the protrusion 22 and a connecting arm 21 accommodating part of the cleaning unit. The utility model has the advantages that the developing unit and the cleaning unit are easy to assemble, and the positioning accuracy of the developing unit and the cleaning unit is reliable; a pivot hole is prevented from being damaged caused by a peripheral supporting shaft is shared by the two units.
Description
Technical field
The utility model relates to carbon powder cartridge for laser printer, and this cartridge is removably installed on the laser printer, is used for supply toner and makes the electrostatic latent image of photosensitive drums generation be converted into visual image on similar recording mediums such as paper.
Background technology
The disclosed cartridge of domestic application for a patent for invention prospectus CN1175013A mainly is made of developing cell and cleaning unit, can rotate mutually between Unit two.Developing cell mainly comprises toner, puddle support, developer roll and showing board, and four all are arranged on the developing frame.Cleaning unit mainly comprises waste powder hopper, photosensitive drums, cleaner plate and charging roller, and four all are installed on the cleaning framework.In developing cell, toner provides the storage space and the suitable carbon dust transfer passage of carbon dust; Puddle support evenly distributes the stand-by carbon dust of transporting to developer roll by the rotation of self; Showing board provides charge function to developer roll; Developer roll is adjacent to photosensitive drums, makes carbon dust be adsorbed in electrostatic latent image zone on the photosensitive drums by opposite polarity charge effect.Charging roller in the cleaning unit provides charge function to photosensitive drums, makes the photosensitive drums photosensitive region carry polarity and the opposite polarity electric charge of carbon dust adsorption charge; Cleaner plate contacts with the mantle friction of photosensitive drums photosensitive region, and the lip-deep remaining toner of photosensitive drums photosensitive region is scraped in the waste powder hopper.
Be to realize mutual connection between the developing cell of above-mentioned cartridge and the cleaning unit by a pin that allows to rotate.Its concrete tectonic relationship is: at the axial two ends of developer roll, developing frame upper edge that are used to install developer roll, be provided with the linking arm that axially stretches out along perpendicular to developer roll, this linking arm arm end is provided with the circular pivot hole, this circular pivot hole axis and developer roll axially parallel; Corresponding, the cleaning framework is provided with the circular hole that is used to accept the notch portion of this linking arm and is used for this linking arm of support fixation; Under installment state, circular hole is coaxial with aforementioned pivot hole.During installation, linking arm is inserted above-mentioned notch portion, the circular hole that cleans on the framework is alignd with the circular pivot hole of linking arm arm end reach coaxial state, insert pin afterwards.In this state, realize coaxial connection by pin between developing cell and the cleaning unit, and all can do with limitation and rotate around pin.Its force direction is set on developing cell or cleaning unit, and its point of application cooperates with above-mentioned pin without the spring of pin axle perpendicular to the pin axle, can realize that developer roll contacts with the tight of photosensitive drums.
The above-mentioned fit system of developing cell and cleaning unit must provide a common back shaft between developing cell and cleaning unit, must guarantee when installing simultaneously that the respective pivot hole of developing cell and cleaning unit is positioned at coaxial position.But, cause pin can't enter pivot hole because the effect of aforementioned spring makes the respective pivot hole of developing cell and cleaning unit depart from coaxial position each other.In addition, because the mismatch that the pivot hole dislocation causes makes back shaft shared between developing cell and the cleaning unit very easily damage pivot hole,, just may cause the permanent damage of cartridge therefore through loading dismounting behaviors such as carbon dust or maintenance again.
The utility model content
It is easy that the utility model purpose is to provide a kind of its cleaning unit to combine with developing cell, can guarantee the carbon powder cartridge for laser printer of both accurate positionings again.
The carbon powder cartridge for laser printer of above-mentioned utility model comprises:
Developing cell.It has toner, puddle support, developer roll and a showing board at least.Toner, puddle support all are installed on the toner framework.Developer roll, showing board are arranged on the developing frame 2.Toner framework and developing frame 2 are interconnected to constitute above-mentioned developing cell.With
Cleaning unit.It has a waste powder hopper 6, photosensitive drums 3, cleaner plate and charging roller 4 at least.Waste powder hopper 6, photosensitive drums 3, cleaner plate and charging roller 4 four all are installed on the cleaning framework 1,
By the linking arm 21 of two symmetries and cooperatively interacting of two corresponding recess positions cleaning setting on the framework 1 that is provided with on the developing frame 2, realize interconnecting of above-mentioned developing cell and cleaning unit,
The arm end that these cartridge characteristics are linking arms 21 is arranged to pivot 24.The axial length of pivot 24 at the width of pivot 24 on axially, forms teat 22 greater than the linking arm 21 that cooperates with corresponding recess position.Corresponding recess position on the cleaning framework 1 is provided with the pivot hole that is used to admit teat 22.From between two linking arms 21 that the extension basic point of teat 22 begins pivot 24 axially on distance corresponding with the distance between two pivot holes.
Adjust the formation element in the technique scheme, can obtain more simple and practical cartridge.
Preferred teat 22 is positioned at the axial outer end of pivot 24, and the pivot hole 14a corresponding with it is positioned on the wallboard 13a of the axial outer end that is positioned at photosensitive drums 3 that is provided with on the cleaning framework 1.Along the distance between the inwall of axial two wallboard 13a, the 13b of photosensitive drums 3 equal between two linking arms 21 that the extension basic point from teat 22 begins pivot 24 axially on distance.
The quantity of adjusting teat 22 is two, lays respectively at axial outer end and the inner of pivot 24, and pivot hole 14a, the 11a corresponding with it lays respectively on axial outside wallboard 13a, the 12a that are positioned at photosensitive drums 3 that is provided with on the cleaning framework 1.Along the distance between the outer wall of the distance between the inwall of axial two wallboard 13a, the 13b of photosensitive drums 3 and two wallboard 12a, 12b equal respectively two linking arms 21 that the extension basic point from teat 22 begins pivot 24 axially on outside surface and the distance between the inside surface.Be provided with along the axially extended opening 23 perpendicular to pivot 24 at the axial middle part of pivot 24, the length of opening 23 is greater than the diameter of pivot 24.
Can offer circular hole 25 on the pivot 24.Circular hole 25 is coaxial with pivot 24, and axially runs through pivot 24 along himself.The diameter of circular hole 25 is less than pivot 24.
The content that the above-mentioned background technology is partly introduced shows, in the prior art, is to allow the two pin that rotates mutually to realize connecting by one between the developing cell of cartridge and the cleaning unit.Owing to must guarantee that photosensitive drums contacts with the microclearance of developer roll, so provide the acting force of the spring of this assurance just to produce the additional consequence of the respective pivot hole mutual dislocation that causes developing cell and cleaning unit.For this reason, the utility model is converted to direct connected mode between developing cell linking arm and the cleaning unit pivot hole with the developing cell of prior art and the pin connected mode between the cleaning unit.When assemble carbon powder box developing cell and cleaning unit, this new connected mode only need be utilized self elasticity of linking arm, perpendicular to photosensitive drum shaft to direction on apply an acting force to developing cell, and then the elastic deformation by linking arm is pressed into the linking arm pivot teat of developing cell in the respective pivot hole on the cleaning unit, so far, can finish the assembling of cartridge developing cell and cleaning unit.Relatively prior art and result of the present utility model show, the assembling of the utility model cartridge developing cell and cleaning unit is very easy, the accurate positioning of developing cell and cleaning unit has obtained reliable assurance by the accurate cooperation in the linking arm pivot teat of developing cell and cleaning unit respective pivot hole, has avoided simultaneously damaging pivot hole because of the shared outside independent back shaft that is provided with between developing cell and the cleaning unit.
The drawing explanation
Fig. 1 is the assembly structure synoptic diagram of the utility model carbon powder cartridge for laser printer developing frame and waste powder hopper.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is near the waste powder hopper partial structurtes synoptic diagram of photosensitive drums power receiving terminal among Fig. 1.
Fig. 4 is the partial enlarged drawing of Fig. 3.
Fig. 5 is that photosensitive drums power is accepted near the waste powder hopper partial structurtes synoptic diagram opposite end among Fig. 1.
Fig. 6 is the partial enlarged drawing of Fig. 5.
Fig. 7 is one of a utility model carbon powder cartridge for laser printer embodiment developing frame perspective view.
Fig. 8 is two developing frame perspective views of the utility model carbon powder cartridge for laser printer embodiment.
Fig. 9 is one of a utility model carbon powder cartridge for laser printer embodiment developing frame structural representation.
Figure 10 is the partial enlarged drawing of Fig. 9.
Figure 11 is three developing frame structural representations of the utility model carbon powder cartridge for laser printer embodiment.
Figure 12 is the partial enlarged drawing of Figure 11.
Figure 13 is three pin feature synoptic diagram of the utility model carbon powder cartridge for laser printer embodiment.
Figure 14 is the different directions perspective view of Figure 13.
Embodiment
Fig. 1,2,3,4,5,6,7,8,9,10,11,12,13,14 is respectively the corresponding site diagram of the different conditions of the various embodiments of the utility model, i.e. the assembly structure synoptic diagram of cartridge developing frame and waste powder hopper, the vertical view of this assembly structure, near the waste powder hopper partial structurtes synoptic diagram photosensitive drums power receiving terminal of this assembly structure, near the partial enlarged drawing of the waste powder hopper photosensitive drums power receiving terminal of this assembly structure, the photosensitive drums power of this assembly structure is accepted near the waste powder hopper partial structurtes synoptic diagram opposite end, the photosensitive drums power of this assembly structure is accepted near the partial enlarged drawing of the waste powder hopper in opposite end, one of the utility model cartridge embodiment developing frame perspective view, two developing frame perspective views of the utility model cartridge embodiment, one of the utility model cartridge embodiment developing frame structural representation, the partial enlarged drawing of one of the utility model cartridge embodiment developing frame, three developing frame structural representations of the utility model cartridge embodiment, the partial enlarged drawing of three developing frames of the utility model cartridge embodiment, the different directions perspective view of four pin feature synoptic diagram of the utility model cartridge embodiment and three pins of the utility model cartridge embodiment.
According to the structure that whole 14 width of cloth accompanying drawings show, the utility model only shows the cleaning unit that is made of waste powder hopper 6, photosensitive drums 3, cleaner plate and charging roller 4.For the developing cell that constitutes by toner, puddle support, developer roll and showing board, the utility model accompanying drawing only demonstrates the developing frame 2 that is used to install developer roll, showing board, and omitted the diagram that is connected of the structural diagrams of developer roll, showing board, the toner framework diagram that is used to install toner, puddle support and developing frame 2 and toner framework.The detailed structure of developing cell can be consulted Chinese invention patent ublic specification of application CN1175013A.
Fig. 1,2 illustrates, cleaning unit that is made of waste powder hopper 6, photosensitive drums 3, cleaner plate and charging roller 4 and the developing frame 2 that is used to install developer roll, showing board.Waste powder hopper 6, photosensitive drums 3, cleaner plate and charging roller 4 four all are installed on the cleaning framework 1.
Fig. 3,4,5, the 6th, one of embodiment of the utility model carbon powder cartridge for laser printer cleaning framework 1, specifically illustrate near the structural representation of the waste powder hopper 6 parts photosensitive drums 3 power receiving terminals and partial enlarged drawing thereof and photosensitive drums 3 power and connect near waste powder hopper 6 partial structurtes synoptic diagram and partial enlarged drawings thereof the opposite end.According to Fig. 3,4, near the waste powder hopper 6 the photosensitive drums 3 power receiving terminals is provided with parallel wallboard 13a and 12a each other.Wallboard 13a is along the outside that axially is positioned at wallboard 12a of photosensitive drums 3, and both plate faces are all perpendicular to photosensitive drums 3 axis.The bulkhead one that its plate face is parallel to photosensitive drums 3 axis on wallboard 13a, 12a and the waste powder hopper 6 is connected, and is configured for admitting the recess position of the linking arm 21 of developing frame 2.Offering cylindrical pivot hole 14a, the 11a that is used to admit the pivot 24 that is provided with on the linking arm 21 on wallboard 13a, the 12a.Pivot hole 14a, 11a are coaxial.Corresponding with near the structure of the waste powder hopper 6 photosensitive drums 3 power receiving terminals shown in Fig. 3,4, Fig. 5,6 illustrates, and near the waste powder hopper 6 photosensitive drums 3 power are accepted the opposite end, is provided with wallboard 13b, 12b and pivot hole 14b, 11b.
Embodiment one referring to the developing frame 2 shown in Fig. 7,9,10.At the axial both ends of developing frame 2 upper edge developer rolls, be provided with linking arm 21.Linking arm 21 is along stretching out back to developer roll perpendicular to the direction of developer roll axis.Terminal part at linking arm 21 is provided with pivot 24.It is half-cylindrical that pivot 24 is, and its semi-cylindrical engages into above-mentioned recess position, and its position relative with semi-cylindrical then and smooth connection between linking arm 21 respective surfaces.Pivot 24 length on axially at the width of pivot 24 on axially, forms teat 22 greater than the linking arm 21 that cooperates with corresponding recess position.Teat 22 is positioned at linking arm 21 along the axial outer end of developer roll, and its axial cross section is rounded, and its diameter is identical with pivot hole 14a or be slightly smaller than pivot hole 14a.Along photosensitive drums 3 axially, the distance between the inwall of two wallboard 13a, 13b, equal between the outside surface of two linking arms 21 at the place, extension basic point starting position of teat 22 pivot 24 axially on distance.
Embodiment two referring to the developing frame shown in Fig. 82.The quantity of teat 22 is two, lays respectively at axial outer end and the inner of pivot 24, and pivot hole 14a, the 11a corresponding with it lays respectively on axial outside wallboard 13a, the 12a that are positioned at photosensitive drums 3 that is provided with on the cleaning framework 1.Along photosensitive drums 3 axially, distance between the outer wall of distance between the inwall of two wallboard 13a, 13b and two wallboard 12a, 12b, equal respectively from two linking arms 21 at place, the extension basic point starting position of teat 22 pivot 24 axially on outside surface and the distance between the inside surface.Be provided with along the axially extended opening 23 perpendicular to pivot 24 at the axial middle part of pivot 24, the length of opening 23 is greater than the diameter of pivot 24.Opening 23 is reserved necessary space for the elastic deformation of linking arm 21.
Embodiment three referring to the developing frame 2 shown in Figure 11,12,13,14.Offer circular hole 25 on the pivot 24.Circular hole 25 is coaxial with the semi-cylindrical of pivot 24, and axially runs through pivot 24 along himself.The diameter of circular hole 25 is less than pivot 24.The pin 5 that is mated is engaged under installment state among respective pivot hole 11a, the 14a at circular hole 25 and two corresponding recess positions of cleaning framework 1.The face of cylinder 52 of pin 5 is provided with projection 51, and circular hole 25 is provided with retaining plate 24b, passage 24c and draw-in groove 24d in its axial inner ends.Retaining plate 24b is that the inner face of circular hole 25 on it is axial shrinks the breach annulus that obtains to the center of circle.Passage 24c is the annulus breach on the retaining plate 24b.The shape of draw-in groove 24d is corresponding with projection 51.Installment state lower convexity 51 is arranged in draw-in groove 24d.
When the developing cell of assembling the utility model cartridge and cleaning unit, utilize self elasticity of linking arm, perpendicular to photosensitive drum shaft to direction on apply an acting force to developing cell, and then the elastic deformation by linking arm is pressed into the linking arm pivot teat of developing cell in the respective pivot hole on the cleaning unit, so far, can finish the assembling of cartridge developing cell and cleaning unit.After using pin, can provide of further stable the cooperating of developing frame linking arm with cleaning framework recess junction surface.
Under the enlightenment that above-mentioned embodiment provides, also can make various deformation to the utility model, for example along on the photosensitive drum shaft waste powder hopper outward, it is positioned on the inside wallboard can determine whether to be provided with the pivot hole that cooperates with the linking arm pivot according to the state of linking arm pivot.Look developing frame linking arm and the situation that cooperates that cleans framework recess junction surface, determine whether to use pin, and the projection of pin is provided with situation.Linking arm stretches out state, with and developer roll axially on the state of inside and outside two end faces, as flat state, curved surface state, multiaspect assembled state or the like.These distortion can be found clear and definite enlightenment on basis of the present utility model, thereby belong to the scope of the utility model protection.
Claims (6)
1. carbon powder cartridge for laser printer comprises:
Developing cell, described developing cell has toner, puddle support, developer roll and a showing board at least, described toner, puddle support are installed on the toner framework, described developer roll, showing board are arranged on the developing frame (2), described toner framework and described developing frame (2) be interconnected to constitute described developing cell and
Cleaning unit, described cleaning unit have a waste powder hopper (6), photosensitive drums (3), cleaner plate and charging roller (4) at least, and described waste powder hopper (6), photosensitive drums (3), cleaner plate and charging roller (4) four all are installed on the cleaning framework (1),
By the linking arm (21) of last two symmetries that are provided with of described developing frame (2) and cooperatively interacting of last two the corresponding recess positions that are provided with of described cleaning framework (1), realize interconnecting of described developing cell and described cleaning unit,
It is characterized in that, the arm end of described linking arm (21) is arranged to pivot (24), the axial length of described pivot (24) greater than the described linking arm (21) that cooperates with described corresponding recess position at the width of described pivot (24) on axially, form teat (22), corresponding recess position on the described cleaning framework (1) is provided with the pivot hole that is used to admit teat (22), between described two linking arms (21) that the extension basic point of described teat (22) begins described pivot (24) axially on distance corresponding with the distance between described two pivot holes.
2. carbon powder cartridge for laser printer according to claim 1, it is characterized in that described teat (22) is positioned at the axial outer end of described pivot (24), the pivot hole corresponding with it (14a) is positioned on the wallboard (13a) of the axial outer end that is positioned at described photosensitive drums (3) that described cleaning framework (1) go up to be provided with, and equals between described two linking arms (21) that the extension basic point from described teat (22) begins distance on described pivot (24) axial along the distance between the inwall of axial described two wallboards (13a, 13b) of described photosensitive drums (3).
3. carbon powder cartridge for laser printer according to claim 1, the quantity that it is characterized in that described teat (22) is two, lay respectively at axial outer end and the inner of described pivot (24), pivot hole (the 14a corresponding with it, 11a) lay respectively at described cleaning framework (1) and go up the axial outside wallboard (13a that is positioned at described photosensitive drums (3) that is provided with, 12a), axial described two wallboard (13a along described photosensitive drums (3), distance between inwall 13b) and described two wallboard (12a, distance between outer wall 12b) equal respectively described two linking arms (21) that the extension basic point from described teat (22) begins described pivot (24) axially on outside surface and the distance between the inside surface, be provided with along the axially extended opening (23) perpendicular to described pivot (24) at the axial middle part of described pivot (24), the length of described opening (23) is greater than the diameter of described pivot (24).
4. according to claim 1,2, one of 3 described carbon powder cartridge for laser printer, it is characterized in that described pivot (24) offers circular hole (25), described circular hole (25) is coaxial with described pivot (24), described circular hole (25) axially runs through described pivot (24) along it, and described circular hole (25) diameter is less than described pivot (24).
5. carbon powder cartridge for laser printer according to claim 4, it is characterized in that also comprising pin (5), described pin (5) is engaged in the described respective pivot hole at described two corresponding recess positions of described circular hole (25) and described cleaning framework (1) under installment state.
6. carbon powder cartridge for laser printer according to claim 5, the face of cylinder (52) that it is characterized in that described pin (5) is provided with projection (51), described circular hole (25) is provided with retaining plate (24b) in its axial inner ends, passage (24c) and draw-in groove (24d), described retaining plate (24b) is that the inner face of described circular hole (25) on it is axial shrinks the breach annulus that obtains to the center of circle, described passage (24c) is the annulus breach on the described retaining plate (24b), the shape of described draw-in groove (24d) is corresponding with described projection (51), and described projection (51) is arranged in described draw-in groove (24d) under the installment state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057623 CN2791705Y (en) | 2005-04-21 | 2005-04-21 | Carbon dust box for laser printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057623 CN2791705Y (en) | 2005-04-21 | 2005-04-21 | Carbon dust box for laser printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2791705Y true CN2791705Y (en) | 2006-06-28 |
Family
ID=36807764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520057623 Expired - Fee Related CN2791705Y (en) | 2005-04-21 | 2005-04-21 | Carbon dust box for laser printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2791705Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262376A (en) * | 2011-08-02 | 2011-11-30 | 珠海天威飞马打印耗材有限公司 | Developer assembly and development box |
| WO2012034502A1 (en) * | 2010-09-13 | 2012-03-22 | 珠海天威飞马打印耗材有限公司 | Toner cartridge for laser printer |
-
2005
- 2005-04-21 CN CN 200520057623 patent/CN2791705Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012034502A1 (en) * | 2010-09-13 | 2012-03-22 | 珠海天威飞马打印耗材有限公司 | Toner cartridge for laser printer |
| CN102262376A (en) * | 2011-08-02 | 2011-11-30 | 珠海天威飞马打印耗材有限公司 | Developer assembly and development box |
| WO2013017072A1 (en) * | 2011-08-02 | 2013-02-07 | 珠海天威飞马打印耗材有限公司 | Developer assembly and development cartridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060628 |