CN200993728Y - Carbon powder cartridge for laser printer - Google Patents
Carbon powder cartridge for laser printer Download PDFInfo
- Publication number
- CN200993728Y CN200993728Y CN 200620155723 CN200620155723U CN200993728Y CN 200993728 Y CN200993728 Y CN 200993728Y CN 200620155723 CN200620155723 CN 200620155723 CN 200620155723 U CN200620155723 U CN 200620155723U CN 200993728 Y CN200993728 Y CN 200993728Y
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- China
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- inner core
- carbon dust
- guard shield
- storage powder
- inner cylinder
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- Expired - Lifetime
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Abstract
The utility model provides a carbon powder cylinder for laser printer, which comprises a cleading and a powder storage inner cylinder. The powder storage inner cylinder takes a shape of column and is provided with a powder storage inner chamber, whose one end along the axial direction is provided with an opening and the opposite end is closed by an inner cylinder lid; the cylindrical surface is provided with a carbon powder supplying opening. The cleading takes a shape of cylinder and is coaxially suited on the powder storage inner cylinder, which can rotate repeatedly at a certain angle; open / close mechanism is positioned for controlling the carbon powder supplying opening. Both ends along the axial direction of the cleading are provided with openings. The carbon powder cylinder also comprises an outer end cover provided with a positioning fastening button. The powder storage inner cylinder positions a seal ring made of porous materials on the external column near the abutting joint part of the skirt side of the inner cylinder side. The seal ring is in the state of compression on condition that the cleading and the powder storage inner cylinder are in the state of assembly. The carbon powder cylinder can effectively prevent the residual carbon powder in the inner cylinder lid zone from spreading into the carbon powder supplying opening and the production process is simple.
Description
Technical field
The utility model relates to the laser printer carbon powder tube.The developer that this carbon dust tube is used for carbon dust of splendid attire scheduled volume and so on is for image developing apparatus that stress optical printer.It comprises the guard shield that is used to store up the inner core of powder and is used to control the inner core toner supply passage.
Background technology
The image developing apparatus of laser printer needs to be equipped with carbon dust tube or the cartridge that is used to store developer usually when work.That this cartridge often is designed to change or through reclaim filling the form that can be repeatedly used behind the carbon dust, its relative configurations be can dismounting a plurality of assemblies.
In a kind of structure of existing developing apparatus, the carbon dust tube outward appearance that is used to store carbon dust is rendered as the cylindrical drum form basically, and it is made of the guard shield that is used to store the inner core of carbon dust and be used for the inner core location and have a certain protective role.Guard shield is placed on the cylindrical outer wall of inner core.On the cylindrical wall of inner core, offer the carbon dust supply port, in the inner chamber of carbon dust inner core, be provided with the puddle support that is used to stir carbon dust.In the developing apparatus frame that is used to support the carbon dust tube, be formed with carbon dust supply orifice corresponding to inner core carbon dust supply port.This carbon dust supply orifice docks with inner core carbon dust supply port coupling, provides carbon dust to be entered the carbon dust transmission channel of developing room by inner core.Form developing room after the frame closure of developing apparatus.In this developing room, dispose the carbon dust donor rollers and the developer roll that adjoin each other.So, after carbon dust supply orifice and inner core carbon dust supply port coupling dock, the carbon dust of being imported by inner core carbon dust supply port transferred to developer roll by the carbon dust donor rollers.
In the developing room of above-mentioned developing apparatus, overhangingly on the internal chamber wall of developing room go out sheet component.Corresponding to the cylindrical surface of developer roll, this sheet component has along the axially extended linearity of developer roll edge.This linearity edge contacts with the developer roll cylindrical surface, and radially applies certain pressure along developer roll, is attached to carbon dust layer thickness on the developer roll cylindrical surface with adjusting.With respect to developer roll, photosensitive drums and inner core carbon dust supply port are opposite to the both sides of developer roll respectively, and the cylindrical drum face of photosensitive drums and the cylindrical surface of developer roll are in contact with one another.The image information of laser printer output by the cylindrical drum face of Laser Transmission to photosensitive drums, forms electrostatic latent image by corresponding laser scanning device.And then the electrostatic latent image supply carbon dust of developer roll on photosensitive drums drum face, latent electrostatic image developing is become visual image.Thereafter, the visual image rotation on the photosensitive drums drum face replaces to transfer position, by corresponding transfer roll visual image is transferred on the recording medium such as paper, forms the visible image information of clerking form.
Has detent mechanism between the storage powder inner core of aforementioned carbon dust tube and the guard shield.This detent mechanism will store up the powder inner core and guard shield is combined into a complete carbon dust tube, allow simultaneously storage powder inner core and guard shield in common axis of rotation is done the certain angle scope relative to back and forth rotating.Corresponding to inner core carbon dust supply port, guard shield is provided with the On/Off device.This On/Off device is opening and the sponge kind porosint seal that sets gradually along the guard shield circumferencial direction.In above-mentioned rotational angle range, On/Off device on the guard shield cooperates the reciprocal rotation of guard shield to make the guard shield opening aim at carbon dust supply port on the inner core to open inner core carbon dust supply port, realize flowing of carbon dust, perhaps make sponge seal on the guard shield aim at carbon dust supply port on the inner core closing inner core carbon dust supply port, the flowing of blocking-up carbon dust.
For storage powder inner core and guard shield are combined into the device that can bear certain function, cooperate with the positioning track that on the fixed sealing closed end of guard shield, is provided with by the locking locating detent that stores up the powder inner core, with control storage powder inner core and guard shield location between the two.This version because the guard shield blind end is in the stationary state integrally formed with guard shield, causes adopting complicated production moulds of industrial equipment to prepare guard shield, could guarantee that storage powder inner core and guard shield obtain assembling accurately.This making for the production frock is totally unfavorable, has increased the production cost of mould first, and second the maintenance of mould is comparatively complicated, is unfavorable for enhancing productivity and saving cost.The assembling obstacle that the applicant once exists with regard to this guard shield blind end in the early stages have ever made improvement, and the guard shield blind end is improved to the separation blind end, and just improved technical scheme and proposed utility application.In follow-up further R﹠D process, the applicant further finds, in perfusion carbon dust process, this carbon dust tube is because configuration aspects, can be between storage powder inner core and guard shield, especially more carbon dust arranged with the position of inside drum cover correspondence is residual.These residual carbon dusts are difficult to be eliminated clean to the greatest extent, so that in print procedure, can form outstanding turbid or absorption dust because of the variation of factors such as printer temperature, and directly enter the developing apparatus from inner core carbon dust supply port, reduce the quality of carbon dust in it, perhaps leak to outside the guard shield, form flying dust from inner core carbon dust supply port position, and be adsorbed on the page of recording paper, reduce printing effect, perhaps drop on the work top operating environment of pollution.
The utility model content
The utility model purpose is to provide a kind of carbon dust that residues between storage powder inner core and the guard shield that can effectively prevent to leak to outside or printer developing apparatus inside, and its corresponding production equipment laser printer carbon powder tube with low cost.
Realize the laser printer carbon powder tube of above-mentioned purpose, comprise guard shield and storage powder inner core.Storage powder inner core is roughly cylindrical, it has the inner chamber that is used to store carbon dust, its axial end has the opening that is used for to the puddle support transmission turning moment that is arranged at inner chamber, its axial opposite end is sealed by inside drum cover, offers the carbon dust supply port to the laser printer developing device supply toner of being used for that runs through post jamb on its cylindrical cylinder.Guard shield is roughly cylindrical, is placed on coaxially on the storage powder inner core outer cylindrical wall, can do the repeated rotation of certain angle scope with respect to storage powder inner core, is provided for controlling the open/close mechanism of carbon dust supply port open and-shut mode on it.The axial two ends of guard shield have opening respectively, and one of this opening is set with the bigger annulus of a loop diameter, and on this annulus pilot hole is set for the passage of storage powder inner core embedding guard shield on two outer cylindrical wall of opening.This carbon dust tube also comprises the outer cover end cap.This outer cover end cap is provided with the location buckle corresponding with pilot hole.The location buckle is fixed in the pilot hole under installment state.Storage powder inner core is nested with the sealing ring of a circle porosint preparation near external cylindrical surface its position of docking with the inside drum cover shirt rim.Under the confined state of guard shield and storage powder inner core, the sealing ring is in compressive state.
The utility model laser printer carbon powder tube, residual between storage powder inner core and guard shield carbon dust arranged at causing because of reasons in structure, so that form flying dust, enter developing apparatus inside from inner core carbon dust supply port, or leak to the guard shield outside, cause the carbon dust integrated quality to descend or problem of environment pollution caused, near the external cylindrical surface position that storage powder inner core docks with the inside drum cover shirt rim, be nested with the sealing ring of a circle porosint preparation.Utilize the sealing ring that one end at inner core carbon dust supply port and inside drum cover place is isolated, make inside drum cover residual carbon dust at one end can not enter the zone at inner core carbon dust supply port place.Like this, in the carbon dust filling process, mainly residue in inside drum cover carbon dust at one end just can not enter the guard shield of inner core carbon dust supply port correspondence and the gap area between the storage powder inner core, and after finishing, powder filling only needs to remove the remaining carbon dust of inner core carbon dust supply port corresponding region, need not take other positions into account, the result, avoided on the one hand the corresponding gap area of inner core carbon dust supply port form the carbon dust flying dust and enter in the developing apparatus or outside, for print quality stability provides effective assurance, also avoid unnecessary cleaning, improved cleaning quality and work efficiency.
The drawing explanation
One of Fig. 1 the utility model laser printer carbon powder tube contour structures synoptic diagram illustrates the state that the carbon dust surplus detection window of storing up on the powder inner core is positioned at visible surface.
Two of Fig. 2 the utility model laser printer carbon powder tube contour structures synoptic diagram illustrates the state that the carbon dust supply port that stores up on the powder inner core is positioned at visible surface.
Fig. 3 the utility model laser printer carbon powder tube guard shield contour structures synoptic diagram, illustrate with store up the powder inner core on the corresponding guard shield view window of carbon dust surplus detection window be positioned at the state of visible surface.
Fig. 4 the utility model laser printer carbon powder tube guard shield contour structures decomposing schematic representation, illustrate with store up the powder inner core on the corresponding guard shield switching mechanism of carbon dust supply port be positioned at the state of visible surface.
The storage powder inner core contour structures synoptic diagram of Fig. 5 the utility model laser printer carbon powder tube illustrates the state that the carbon dust surplus detection window of storing up on the powder inner core is positioned at visible surface.
The storage powder inner core contour structures synoptic diagram of Fig. 6 the utility model laser printer carbon powder tube illustrates the state that the carbon dust supply port that stores up on the powder inner core is positioned at visible surface.
Fig. 7 the utility model laser printer carbon powder tube storage powder inner core profile partial structurtes synoptic diagram is illustrated in the blind end configuration state that is used for mating with guard shield connection that is provided with on the storage powder inner core that has inside drum cover.
Fig. 8 the utility model laser printer carbon powder tube storage powder inner core profile partial structurtes synoptic diagram illustrates the openend configuration state that storage powder inner core is used for transmitting to puddle support turning moment.
Cover the end cover structure synoptic diagram outside Fig. 9 a, the b the utility model laser printer carbon powder tube, the front and back configuration state of outer cover end cap is shown respectively.
Embodiment
Referring to Fig. 1,2,3,4,5,6,7,8,9a, 9b, the utility model laser printer carbon powder tube corresponding construction synoptic diagram is shown from different viewing angles.
This carbon dust tube structurally comprises storage powder inner core 1 and guard shield 2.
Storage powder inner core 1 is roughly cylindrical.It has the cylindrical cavity 103 (Fig. 5) that is used to store carbon dust.These cylindrical cavity 103 axial ends have the opening 102 (Fig. 5,8) that is used for to the puddle support transmission turning moment that is arranged at cylindrical cavity 103.Near its opposite end opening the face of cylinder on two symmetrical locking buckles 108 are set, by cooperatively interacting between the locking shrinkage pool that is provided with on locking buckle 108 and inside drum cover 111 respective surfaces, by inside drum cover 111 sealing these opposite end axial port (Fig. 5,6,7).Offer the carbon dust supply port 101 (Fig. 2,6) of being used for that runs through its post jamb on the storage powder inner core 1 cylindrical cylinder to the laser printer developing device supply toner.Under confined state, storage powder inner core 1 is inserted in the cylindrical cavity of guard shield 2, and will store up powder inner core 1 by the locking locating detent 110 on the inside drum cover 111 axial outer end faces and be locked in the positioning rail 302 that is provided with on outer cover end cap 3 axial ends.
Referring to Fig. 5,, on its external cylindrical surface, form two grooves 1041,1042 that concave along storage powder inner core 1 footpath at the approximately axially middle part of storage powder inner core 1.Be the part 109 of storage powder inner core 1 cylindrical wall between two grooves 1041,1042.This part 109 has certain axial width, can be referred to as carbon dust test chamber 109, and carbon dust can enter this carbon dust test chamber 109 from the cylindrical cavity 103 of storage powder inner core 1.The carbon dust detection window 104 that the carbon dust surplus pick-up unit that this carbon dust test chamber 109 is provided with on two grooves, 1041,1042 formations and developing apparatus adapts.Carbon dust surplus pick-up unit sends detection light from one of groove 1041, axially pass through two radial cavity walls of carbon dust test chamber 109 along storage powder inner core 1, arrive another corresponding groove 1042, and here received by the receiving terminal of carbon dust surplus pick-up unit, perhaps, reach the purpose that detects the carbon dust surplus by the blocking-up of the carbon dust in the carbon dust test chamber 109 light path.
Along the circumferencial direction of storage powder inner core 1,, be provided with carbon dust supply port 101 (see Fig. 6, carbon dust detection window 104 is positioned at the back side of storage powder inner core 1 under this state) with carbon dust detection window 104 certain distance that staggers.Carbon dust supply port 101 is positioned at the approximately axially middle part of storing up powder inner core 1 basically simultaneously with carbon dust detection window 104.The carbon dust that stores in the storage powder inner core 1 can flow out from carbon dust supply port 101.Axial along storage powder inner core 1, in carbon dust supply port 101 or carbon dust detection window 104 both sides, each is provided with together along the radially overhanging annulus 107 of storage powder inner core 1 external cylindrical surface respectively, is used to strengthen guard shield 2 and the confining effect that stores up between the powder inner core 1.Near carbon dust detection window 104 towards the direction of storage powder inner core 1 opening 102, on annulus 107, be provided with the laser printer developing device detent adaptive along the radially overhanging locating convex block 105 of storage powder inner core 1.On the axial xsect of storage powder inner core 1, these locating convex block 105 rectangular layer structures.Towards inside drum cover 111 1 sides of storage powder inner core 1, locating piece 106 is set up in additional setting near carbon dust detection window 104.Set up one section axial distance of maintenance between locating piece 106 and the locating convex block 105, this section axial distance is advisable can hold carbon dust detection window 104.Like this, when guard shield 2 is subjected to do the time spent from the turning moment of outer cover end cap 3 one ends, set up locating piece 106 and can be positioned at mutual coaxial state to guard shield 2 and storage powder inner core 1, make relatively rotating and under the state that does not produce moment of torsion, to be able to steady realization between the two with locating convex block 105.
Referring to Fig. 1,2,3,6,7,9a, 9b,, on outer cover end cap 3 radial walls, positioning rail 302 is set corresponding to the locking locating detent 110 of inside drum cover 111; Corresponding to carbon dust supply port 101, the carbon dust detection window 104 of storage powder inner core 1, set up locating piece 106 and locating convex block 105, the positioning recess 207 that the carbon dust supply port switching mechanism 208 corresponding with it, carbon dust detect mouth 201, locating slot 202 and formed along self axial indent by guard shield 2 openend cylindrical walls is set respectively on guard shield 2.The axial two ends of the cylindrical cavity of guard shield 2 are the openings 205 and 206 that open wide respectively.Positioning recess 207 is positioned at same end with opening 206.Opening 206 is passages that storage powder inner core 1 inserts guard shield 2.On opening 205 outer cylindrical wall, fixedly install the bigger annulus of a loop diameter 204.This annulus 204 is provided with pilot hole 203.In order to improve the simple and direct property of assembling between storage powder inner core 1 and the guard shield 2, guard shield 2 axially is cut into two parts assembly 209 and 210 along it, and both finish fixedly connected by the buckle that is arranged at them and dissects on the edge.Wherein, carbon dust supply port switching mechanism 208 is positioned on the cover assembly 209, and carbon dust detects mouth 201 and is positioned on the cover assembly 210.
Referring to Fig. 9 a, b, the outer cover end cap 3 that this carbon dust tube uses.This outer cover end cap 3 is provided with the location buckle 301 corresponding with pilot hole 203.Location buckle 301 is fixed in the pilot hole 203 of guard shield 2 (Fig. 1,2) under the installment state.So, realize fixedlying connected of guard shield 2 and outer cover end cap 3.In outer cover end cap 3 one side of guard shield 2 cylindrical cavities dorsad, in its circumferential edge along the locating ring 303 that an astragal has fracture is set.Positioning rail 302 forms different two section 3021 and 3022 of radial width along himself circumferencial direction.At the intersection of these two sections tracks 3021 and 3022 and locating ring 303 positions that are symmetrical in this intersection, respectively be provided with one by the radially overhanging reinforcement 304 of positioning rail 302 radial outer wall until outer cover end cap 3 circumferential peripheries edge or locating ring 303 inner periphery edges.The axial end of reinforcement 304 flushes with the axial end of locating ring 303.Two sections tracks 3021 of positioning rail 302 and 3022 and the fracture of locating ring 303 cooperatively interact, the rotational angle between storage powder inner core 1 and the guard shield 2 is controlled.Among Fig. 9 a, the b, be respectively arranged with two positioning rails 302 and two reinforcements 304 of being symmetrical in guard shield 2 axis.
Referring to 5,6,7, near the position of storage powder inner core 1, on storage powder inner core 1 external cylindrical surface, be nested with a circle by the porosint elastic sealing ring 112 of sponge preparation for example with the shirt rim butt joint of inside drum cover 111.Sealing ring 112 can adopt the state of individual components, and is assembled in the carbon dust tube in good time.Assemble under the state that finishes at guard shield 2 and storage powder inner core 1, sealing ring 112 preferably is in compressive state.Like this, the carbon dust that residues in the powder filling process between inside drum cover 111 and the guard shield 2 just is stranded in this seal cavity fully, reaches and stops the purpose that it diffuses into the zone at carbon dust supply port 101 places.
As shown in Figure 1, 2, storage powder inner core 1 pack into guard shield 2 and assemble outer cover end cap 3 after, locking locating detent 110 snaps in the positioning rail 302, sets up locating piece 106 and locating convex block 105 and snaps in respectively in locating slot 202 and the positioning recess 207.Positioning rail 302, locating slot 202 and positioning recess 207 with locking locating detent 110, set up locating piece 106 and locating convex block 105 and be limited on the same rotational angle along the movement travel of storage powder inner cores 1 circumferencial direction.So, under the situation that storage powder inner core 1 is fixed by laser printer developing device, when guard shield 2 back and forth rotates with respect to storage powder inner core 1, the open/close mechanism that is provided with on the guard shield 2 will make the carbon dust supply port 101 of storage powder inner core 1 be in the alternately exchange state of opening or closing, thereby realize storage powder inner core 1 to the laser printer developing device supply toner, or the blocking-up carbon dust flows to laser printer developing device from storage powder inner core 1.
Claims (1)
1. the laser printer carbon powder tube comprises guard shield and storage powder inner core,
Described storage powder inner core is roughly cylindrical, it has the inner chamber that is used to store carbon dust, its axial end has the opening that is used for to the puddle support transmission turning moment that is arranged at described inner chamber, its axial opposite end is sealed by inside drum cover, offer the carbon dust supply port of being used for that runs through post jamb on its cylindrical cylinder to the laser printer developing device supply toner
Described guard shield is roughly cylindrical, is placed on coaxially on the described storage powder inner core outer cylindrical wall, can do the repeated rotation of certain angle scope with respect to described storage powder inner core, is provided for controlling the open/close mechanism of carbon dust supply port open and-shut mode on it,
The axial two ends of described guard shield have opening respectively, and one of described opening is the passage that described storage powder inner core embeds described guard shield, is set with the bigger annulus of a loop diameter on two outer cylindrical wall of described opening, and described annulus is provided with pilot hole,
Described carbon dust tube also comprises the outer cover end cap, and described end cap is provided with the location buckle corresponding with described pilot hole, and described location buckle is fixed in the described pilot hole under installment state,
It is characterized in that described storage powder inner core is nested with the sealing ring of a circle porosint preparation near external cylindrical surface its position of docking with described inside drum cover shirt rim, described sealing ring is in compressive state under the confined state of described guard shield and described storage powder inner core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620155723 CN200993728Y (en) | 2006-12-31 | 2006-12-31 | Carbon powder cartridge for laser printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620155723 CN200993728Y (en) | 2006-12-31 | 2006-12-31 | Carbon powder cartridge for laser printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200993728Y true CN200993728Y (en) | 2007-12-19 |
Family
ID=38946802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620155723 Expired - Lifetime CN200993728Y (en) | 2006-12-31 | 2006-12-31 | Carbon powder cartridge for laser printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200993728Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102591178A (en) * | 2012-03-14 | 2012-07-18 | 珠海天威飞马打印耗材有限公司 | Developing component and processing cartridge |
-
2006
- 2006-12-31 CN CN 200620155723 patent/CN200993728Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102591178A (en) * | 2012-03-14 | 2012-07-18 | 珠海天威飞马打印耗材有限公司 | Developing component and processing cartridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071219 |
|
| EXPY | Termination of patent right or utility model |