CN101046658A - Developing device and image forming device having the same - Google Patents
Developing device and image forming device having the same Download PDFInfo
- Publication number
- CN101046658A CN101046658A CN 200710090092 CN200710090092A CN101046658A CN 101046658 A CN101046658 A CN 101046658A CN 200710090092 CN200710090092 CN 200710090092 CN 200710090092 A CN200710090092 A CN 200710090092A CN 101046658 A CN101046658 A CN 101046658A
- Authority
- CN
- China
- Prior art keywords
- parts
- housing
- scrape
- developing apparatus
- transfer unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
A developing device includes a casing, a first mixing conveying screw, and a developer removing unit. The casing is able to store toner. The first mixing conveying screw has a shaft arranged to be able to rotate freely in the interior of the casing, and a spiral in a spiral shape formed on the outer circumference portion of the shaft. The developer removing unit has a plurality of spring members arranged to be lined up in the axial direction corresponding to the spiral pitch of the spiral and are able to contact the spiral, and a retaining member that is retained in the casing and retains the plurality of the spring members.
Description
Technical field
The present invention relates to developing apparatus and comprise the image processing system of this developing apparatus.
Background technology
Adopt the image processing systems such as duplicating machine, printer of electrofax mode, comprise photosensitive drums (image-carrier) and provide developer and with the visual developing apparatus of electrostatic latent image to photosensitive drums.Usually, developing apparatus comprises the housing of receiving photographic developer, is configured to the developer roll of relative configuration with photosensitive drums and stirs the stirring conveying screw rod (stirring transfer unit) of supplying developing agent in housing in housing.Stir the helical blade (blade part) that conveying screw rod has axial region usually, axially makes along spiral fashion at the peripheral part of axial region.
When in above-mentioned developing apparatus, holding the toner of single component developing agent, along with stirring the conveying toner by stirring conveying screw rod, because of the wax on toner surface or surface conditioning agent peel off etc. former gradually thereby cause toner to lose flowability, toner adheres to, is deposited in to stir sometimes to be carried with on the screw rod.In this case, can reduce agitating function and the conveying function that stirs conveying screw rod.
In TOHKEMY 2000-250299, the developing apparatus that makes toner be difficult to adhere to by improvement helical blade shape is taken into account with both that realize agitating function and conveying function.
In TOHKEMY 2001-249533, disclosed a kind of technology that is used to scrape attached to toner on the thick-layer limiting scraper, its medium bed limiting scraper is the toner thick-layer that is used to limit on the developer roll.
On the other hand, the image processing system of electronic photo mode, also have be used to remove remain in around the photosensitive drums and photosensitive drum surface on the cleaning device of toner.Usually, this cleaning device comprises and the cleaning balde of photosensitive drum surface butt and the stirring conveying screw rod of the toner that utilizes the unidirectional stirring conveying of cleaning balde to be scraped.Identical with developing apparatus, in cleaning device, also can occur toner sometimes and be attached to the situation that stirs conveying screw rod, in the known technology, by being radial extension ground installation polyethylene terephthalate glue sheet, so that it is scraped from stirring the conveying screw rod axial region.
The developing apparatus that TOHKEMY 2000-250299 discloses owing to adopt the method for improvement helical blade shape, makes the shape of helical blade become complicated.Secondly, even the shape of helical blade is improved, in fact also be difficult to prevent fully adhering to of toner.Also have, when in above-mentioned cleaning device, adopting the resin film,, can influence the function of carrying toner though can scrape attached to the toner on the helical blade, when therefore in developing apparatus, adopting this technology, can not fully guarantee the function that developing apparatus should possess.
Summary of the invention
The objective of the invention is to, in having the developing apparatus that stirs transfer unit, suppress to reduce the required cost of corresponding configuration simultaneously because of developer descends attached to stirring agitating function and the conveying function that transfer unit caused.
The present invention also aims to, in having the developing apparatus that stirs transfer unit, suppress to prevent the electrostatic accumulation that above-mentioned formation causes simultaneously because of developer descends attached to stirring the agitating function and the conveying function that are caused on the transfer unit.
First kind of developing apparatus that the present invention proposes comprises that housing, first stirs transfer unit, developer removing unit.Housing can hold toner.First stirs transfer unit, comprises spiral fashion first blade part that can be configured in the first axle part in the housing with rotating freely and be formed at the first axle part peripheral part.The helix pitch that developer removing unit comprises corresponding first blade part is configuration and can scrape parts with a plurality of first of the first blade part butt and be installed on the housing and keep a plurality of first holding member that scrapes parts side by side axially.
In this developing apparatus, along with first rotation of stirring transfer unit, maintained portion kept first scrapes parts respectively at the corresponding direction of principal axis position and the first blade part butt, therefore scraped parts attached to the developer of first blade part by first and scrape, thereby can prevent that developer from adhering to, being deposited in first and stirring on the transfer unit.
And, since each first to scrape parts separate, therefore can make respectively according to the blade part shape that is configured in the direction of principal axis position.So, when making as a body component, parts compare with scraping a plurality of first, make simply, and can reduce cost.
Second kind of developing apparatus that the present invention proposes is on the basis of first kind of developing apparatus, comprise that also second stirs transfer unit, it comprises second blade part that can be configured in interior and parallel with the first stirring transfer unit the second axle part of housing with rotating freely and be formed at the second axle part peripheral part.Developer removing unit also comprises according to the configuration and can scrape parts with a plurality of second of the second blade part butt respectively side by side axially of the helix pitch of second blade part, and second scrapes parts is held parts and is keeping.
In this developing apparatus, particularly in the device of circulation alr mode, scraped parts and second by first respectively attached to two developers that stir on the transfer units and scrape parts and scrape.Here, get final product according to the allocation position making of correspondence respectively, therefore make simply, and can reduce cost because first and second scrapes parts.
The third developing apparatus that the present invention proposes is on the basis of second kind of developing apparatus, two are stirred transfer unit and also have plate-like portion respectively, be formed at the peripheral part of axial region throughput direction leading section, and radially extend, be used for stirring the agent of transfer unit side supplying developing to another.
Owing in this developing apparatus, stir transfer unit by plate-like portion from one and stir transfer unit transmission developer, therefore can improve cycle efficieny to another.
The 4th kind of developing apparatus that the present invention proposes be first or the basis of second kind of developing apparatus on, a plurality of parts that scrape have elasticity.
In this developing apparatus,, therefore, blade part mobile formation butt axially when stirring the transfer unit rotation can be followed, the developer that is attached on the blade part can be scraped more reliably because each scrapes parts and is made by the rubber-like material respectively.
First kind of image processing system that the present invention proposes comprises image-carrier, developing apparatus and transfer device, and this developing apparatus comprises that housing, developer carrier, first stir supply unit and developer removing unit.Wherein, image-carrier is the parts that are used to carry electrostatic latent image.Developing apparatus is for being used for providing to image-carrier the parts of developer.Transfer device is transferred to device on the recording medium for the developer that will offer image-carrier.
The 5th kind of developing apparatus that the present invention proposes comprises that housing, developer carrier, first stir transfer unit, electroconductive component and developer removing unit.Housing can hold toner.Developer carrier can be configured in the housing with rotating freely, provides developer to the image-carrier of image processing system.First stirs transfer unit, and it comprises spiral fashion first blade part that can be configured in the first axle part in the housing with rotating freely and be formed at the first axle part peripheral part.Electroconductive component is installed in the described housing.Developer removing unit, it comprises and can scrape parts with the first blade part butt and with first of electroconductive component butt and be installed on the housing and be used to keep first holding member that scrapes parts.
In this developing apparatus, along with first rotation of stirring transfer unit, maintained portion kept first scrapes the parts and the first blade part butt, therefore scraped parts attached to first developer that stirs transfer unit first blade part by first and scrape, thereby can prevent that developer from adhering to, being deposited in first and stirring on the transfer unit.
Carry out above-mentionedly scraping when action and scraping parts and developer etc. and rub because of first, first scrapes and has generation of static electricity on the parts, but because first scrape parts and electroconductive component joins, and electroconductive component is installed on the housing, keep identical current potential so first scrapes parts with case side, can prevent the accumulation of static.Therefore, the noise that can avoid the static because of accumulation discharge to cause harmful effect that development operation is brought.
The 6th kind of developing apparatus proposed by the invention is on the basis of the 5th kind of developing apparatus, also comprises development bias voltage input part.Development bias voltage input part is installed on the housing, and the regulation development bias voltage and the described electroconductive component that put on developer carrier by input conduct.
Accumulate in the method that scrapes static on the parts, for example can consider to scrape the parts that parts are connected to the image processing system side as release, but owing to scrape parts and be positioned at housing, the therefore this method leakage of bias voltage that might occur developing.But, in this device, be connected to electroconductive component and development bias voltage input part owing to scrape parts, therefore scraping parts can keep the current potential identical with the development bias voltage, and the leakage of bias voltage and the generation of noise according to this can suppress to develop.Simultaneously, owing to scrape parts and the development bias voltage is a same potential, can prevent from also therefore that developer is attached to scrape parts on one's body oneself.
The 7th kind of developing apparatus proposed by the invention is on the basis of the 5th kind of developing apparatus, axially disposes a plurality of first side by side corresponding to the helix pitch of first blade part and scrapes parts.Electroconductive component extends along first direction of principal axis that stirs transfer unit.
Because can make each respectively scrapes parts, therefore can make the shape that is suitable for preventing electrostatic accumulation easily.
The 8th kind of developing apparatus proposed by the invention is on the basis of the 5th kind of developing apparatus, comprise that also second stirs transfer unit, it comprises second blade part that can be configured in interior and parallel with the first stirring transfer unit the second axle part of housing with rotating freely and be formed at the second axle part peripheral part.And developer removing unit comprises also and can scrape parts with the second blade part butt and with second of electroconductive component butt that holding member also is used to keep second to scrape parts.
In this developing apparatus, in the device of the alr mode that particularly circulates,, scraped parts and second by first respectively and scrape parts and scrape attached to first and second developer that stirs on the transfer unit.
The 9th kind of developing apparatus proposed by the invention be the 5th or the basis of the 8th kind of developing apparatus on, a plurality of parts that scrape have elasticity.
In this device, use the above-mentioned parts that scrape to cause electrostatic accumulation easily, but be connected electroconductive component owing to scrape parts, therefore can avoid the electric discharge phenomena that cause in electroconductive component because of electrostatic accumulation.
Second kind of image processing system proposed by the invention comprises image-carrier, developing apparatus and transfer device.Developing apparatus comprises that housing, developer carrier, first stir transfer unit, electroconductive component and developer removing unit.Housing can hold toner.First stirs transfer unit, and it comprises spiral fashion first blade part that can be configured in the first axle part in the housing with rotating freely and be formed at the first axle part peripheral part.Electroconductive component is installed in the described housing.Developer removing unit, it comprises and can scrape parts with the first blade part butt and with first of electroconductive component butt and be installed on the housing and be used to keep first holding member that scrapes parts.Transfer device is for the developer that is used for offering image-carrier is transferred to device on the recording medium.
The invention effect
According to the present invention, along with first rotation of stirring transfer unit, maintained portion kept first scrape parts respectively with at the corresponding first blade part butt of direction of principal axis, therefore scraped parts attached to first developer that stirs transfer unit first blade part by first and scrape, thereby can prevent that developer from adhering to, being deposited in first and stirring on the transfer unit.And, since each first to scrape parts independent mutually, therefore can make respectively according to the shape that is configured in the locational blade part of direction of principal axis, for example, compare when parts are made as a body component with scraping with a plurality of first, making simply and can reduce cost.
In addition, according to the present invention, along with first rotation of stirring transfer unit, maintained portion kept first scrapes the parts and the first blade part butt, therefore scraped parts attached to first developer that stirs transfer unit first blade part by first and scrape, thereby can prevent that developer from adhering to, being deposited in first and stirring on the transfer unit.Carry out above-mentionedly scraping when action because of rubbing with developer etc., first scrapes and may have static on the parts, but scrapes parts and electroconductive component joins owing to first, and first scrapes parts can keep the current potential identical with case side, can prevent the accumulation of static.Therefore, the noise that can avoid the static because of accumulation discharge to cause harmful effect that development operation is brought.
Description of drawings
The multi-function peripheral longitudinal sectional view that Fig. 1 is adopted for the embodiment of the invention 1.
Fig. 2 is the developing apparatus longitudinal sectional view of described multi-function peripheral.
Fig. 3 is the cut-off parts oblique view of described developing apparatus.
Fig. 4 is the oblique view of the toner clearing cell of the above-mentioned developing apparatus of clipped.
Fig. 5 is the toner clearing cell major part enlarged drawing of Fig. 4.
Fig. 6 is for to carry out part abridged rear side oblique view to toner clearing cell shown in Figure 4.
Symbol description
1 multi-function peripheral
27 developing apparatuss
29 transfer devices
21 photosensitive drums (image-carrier)
41 housings
47 first stir conveying screw rod (first stirs transfer unit)
49 second stir conveying screw rod (second stirs transfer unit)
61,71 (the first axle part, the second axle part)
63,73 helical blades (first blade part, second blade part)
65,75 plate-like portions
51 toner clearing cells (developer removing unit)
81 maintaining parts
83 first spring members (first scrapes parts)
85 second spring members (second scrapes parts)
103 development stations (electroconductive component)
Embodiment
The formation of＜image processing system 〉
The image processing system that multi-function peripheral 1 shown in Figure 1 is adopted for one of embodiment of the invention.
This multi-function peripheral 1 comprises guidance panel (not shown), image reading unit 5, control part (not shown), sheet feed section 9, image forming part 11, photographic fixing portion 13, row's paper portion 15 for having the image processing system of duplicating machine, printer, facsimile recorder and scanner functions concurrently.
Guidance panel comprises and is used to indicate the start key that begins to duplicate or read original copy, and is used to setting key of setting various print conditions etc.Simultaneously, guidance panel also comprises the touch-screen type LCD that shows various operation interfaces.
Control part is made of CPU, RAM and ROM etc., and it is controlled the input-output portion of image reading unit 5, image forming part 11 etc. or image information is carried out Flame Image Process etc.Store the required various routine datas of aforesaid operations among the ROM, read and be performed by RAM by CPU.
Master tape electric installation 23 has and applies high-tension live line, by utilizing the live line corona discharge photosensitive drum surface is filled with the regulation current potential, makes photosensitive drums 21 uniform chargeds.
Developing apparatus 27 provides toner and makes the electrostatic latent image visible apparatus of photosensitive drum surface to photosensitive drums for being used for.Describe in detail hereinafter.
Photographic fixing portion 13 is configured in the sheet transport direction downstream of image forming part 11, comprises the warm-up mill 16 and the backer roll 18 of internal heater, thereby transfer printing has the paper of toner picture to be melted photographic fixing by two rollers, 16,18 clamping toner images.
Row's paper portion 15 is the devices that are used for arranging by the paper of photographic fixing portion 13 to row's paper disc of multi-function peripheral main body 1a sidepiece, comprises the driving motor of exit roller and this roller of driving etc.
Simultaneously, multi-function peripheral 1 also has auto document feeder 17 as other input-output portions, toner supply device (not shown) etc.But be installed in above the multi-function peripheral main body 1a automatic transport original copy device 17 freely openables, many original copys can be sent to document board 2 one by one continuously.Toner supply device is the device that is used for from the toner cartridge (not shown) supply toner that is configured in developing apparatus 27 tops, in case the surplus that the surplus detecting sensor (not shown) by developing apparatus 27 detects toner is not for a long time, then supplies operation.
＜developing apparatus 〉
Below, describe developing apparatus 27 in detail according to Fig. 2 and Fig. 3.
And, in Fig. 3, omitted explanation for convenience to the upper part of developing apparatus 27 rearward end.
Developing apparatus 27 is the devices that utilize the toner as monocomponent toner to develop, and first and second that comprise developing apparatus housing 41, the developer roll 43 as developer carrier, thick-layer limiting scraper 45, stirs transfer unit as first and second stir conveying screw rod 47,49, as the toner clearing cell 51 and the development bias voltage applying device 53 of developer removing unit.
The basket of housing 41 for being formed from a resin, its inboard accommodates toner.In the time of the leading section opening of housing 41, the top of rearward end and not shown toner cartridge are connected.And housing 41 comprises partition wall 41a.Partition wall 41a stirs between the conveying screw rod 47,49 at first and second, and stirs axially extending to both ends of conveying screw rod 47,49 along first and second.
Thick-layer limiting scraper 45 is the parts that are used to limit the layer of toner thickness that offers developing cylinder 43a, is configured to keep predetermined distance between its leading section and the developing cylinder 43a.
The second stirring conveying screw rod 49 is the toners in one side stirring shell 41, on one side with its device of carrying of a side (be among Fig. 2) axially, stir conveying screw rod 47 circulations with first and carry the interior toner of housings 41 from the direction of paper rear side towards the paper front side.Second stirs conveying screw rod 49 across partition wall 41a and first conveying screw rod, 47 configured in parallel, and is configured to can rotate freely to the arrow B direction in housing 41.Second stir conveying screw rod 49 comprise axle 71 as the second axle part, be formed at conduct second blade part of axle 71 peripheral parts helical blade 73, be formed at the plate-like portion 75 on the peripheral part of 71 direction of principal axis one ends of axle.The plate-like portion 75 of throughput direction leading section is to be used for stirring the device that conveying screw rod 47 sides are carried toner in direction of principal axis one side direction first, and it extends to outer circumferential side from axle 71.
First to stir conveying screw rod 47 are toners in the stirring shell 41 on one side, on one side with the device of its opposite side (be from the direction of paper front side towards the paper rear side among Fig. 2) conveying axially, are configured to can rotate freely to the arrow A direction in housing 41.First stir conveying screw rod 47 comprise axle 61 as the first axle part, be formed at conduct first blade part of axle 61 peripheral parts helical blade 63, be formed at the plate-like portion 65 on the peripheral part of axle 61 throughput direction leading sections.Plate-like portion 65 is to be used at the device of axial opposite side to the second stirring conveying screw rod, 49 sides conveying toner, and it extends to outer circumferential side from axle 61.
A plurality of first and second spring members 83,85 are made by rubber-like metal (for example SUS304) wire rod, here, comprise and the corresponding 3 kinds of shapes in direction of principal axis zone.
As first shape, direction of principal axis one end of maintaining part 81 maintains to second and stirs the side-prominent spring members 85a of conveying screw rod 49.Simultaneously, maintain 2 spring members 83a that give prominence to the first stirring conveying screw rod 47 on direction of principal axis the other end direction of principal axis same position of maintaining part 81.These spring members 83a, 85a, its leading section become rectangular-shaped respectively.
As second shape, maintain at the direction of principal axis both ends of removing maintaining part 81 to second and stir the side-prominent a plurality of spring members 85b of conveying screw rod 49 and stir the side-prominent a plurality of spring members (not shown)s of conveying screw rod 47 to first with exterior domain.The front of these spring members 85b becomes rectangular-shaped respectively and turns back, and is main in order to scrape attached to the toner on the helical blade 63,73.
As the 3rd shape, maintaining part 81 axial the other end and with the spring members 85a of an end near maintain to 3 side-prominent spring members 85c of the second stirring conveying screw rod 49.Simultaneously, maintaining part 81 axial ends dispose to first and stir 3 side-prominent spring members 83c of conveying screw rod 49.These spring members 83c, 85c have the V-shape leading section respectively, and be main to scrape attached to the toner on the helical blade 63,73.
Also have, in Fig. 3 to Fig. 6, for convenience of description, be not presented at all spring members 83,85 in all direction of principal axis zones of maintaining part 81, maintained spring members is the spring members 85b of above-mentioned second shape in the zone, abridged.Arbitrary parts of spring members 83,85 all have a pair of end on maintaining part of being installed in 81, and each plays the development station butt of end from below and development bias voltage applying device 53.
Maintaining part 81 is the parts that are used to keep a plurality of first and second spring members 83,85, by axially extending respectively and being made of first plate 93, second plate 95 that the interconnective resin of fore-and-aft direction is made.
Development bias voltage applying device 53 has as the development bias voltage input terminal 101 of development bias voltage input part with as the development station 103 of electroconductive component.Development bias voltage input terminal 101 is the devices that are used for applying to developer roll 43 regulation development bias voltage, is connected with not shown developing bias supply.The plate-shaped member of development station 103 for axially extending and be made of metal, the end right-angle bending of front is with towards the below time, the end of rear end side is the rectangular bending towards the below also, and is configured in the rearward end side of first plate 93 and second plate 95.Development station 103 is installed on the top of housing 41 front by screw, is and development bias voltage input terminal 101 forms metal (for example SECC) parts of conduction, when development bias voltage input terminal applies the development bias voltage, forms the current potential identical with it.And, because an end butt of development station 103 and each spring members 83,85 can prevent the electrostatic accumulation on above-mentioned spring members 83,85.
The operation of＜image processing system 〉
Below, the operation of multi-function peripheral is described.
In case the startup multi-function peripheral, carry out following initial operation: control part carries out the initialization of various parameters, and photographic fixing portion 13 well heaters are heated etc.In case finish initial operation, guidance panel shows the printing standby picture of regulation.
Under this state, in case on document board 2, place original copy and started by press key, when then reading the image information of original copy, from paper feeding cassette 10 supply paper.At this moment, the photosensitive drums 21 in the image forming part 11 are driven in rotation, charged after, be exposed and form electrostatic latent image according to the image information that reads, next form the toner pictures from developing apparatus 27 supply toners.Thereafter, be sent to image forming part 11 at regulation moment paper, the toner picture is transferred on the paper from photosensitive drums 21.Transfer printing has the paper of toner picture, continues to be sent to the downstream, thereby is melted photographic fixing by passing photographic fixing portion 13 toner images, is arranged on row's carton 14 by row's paper portion 15.
Carry out above-mentioned a series of image and form operating period, two in the developing apparatus 27 are stirred conveying screw rod 47,49 limits and stir, toner is carried to its reverse direction in the limit, when toner was recycled conveying in housing 41, its part was stirred conveying screw rod 47 from first and is sent to developer roll 43 sides.In case repeat such operation, the wax or the surface conditioning agent on toner surface peel off, when flowability descends gradually, toner might occur and adhere to, be piled up in the phenomenon that stirs on conveying screw rod 47,49 helical blades, but in this device, because spring members 83,85 and helical blade butt can scrape toner, therefore can suppress adhering to, piling up of toner, stirring and the conveying function that therefore can avoid each being stirred conveying screw rod 47,49 produce harmful effect.
And each spring members 83,85 is separate parts, installs separately during assembling toner clearing cell get final product, so can correspondence be mounted the position and makes separately.Therefore, make mutual difform parts easily, for example with utilize the single line material to be connected and compare when making spring members 83a, 85b, 83c, use the metal pattern of simple shape to get final product, can reduce cost.
Simultaneously,, therefore, for example can be used in the developing apparatus of other image processing systems outside the multi-function peripheral 1, and can realize sharing of multimachine kind owing to can make spring members separately.Therefore, can reduce cost.
(other embodiment)
(a) shape, kind, the configuration place that scrapes parts do not limit by the foregoing description explanation, can suitably determine according to the shape of helix pitch, stirring transfer unit.
(b) development station is not limited to metallic article, so long as constituted and formed conduction with the development bias voltage applying device by conductive material, is formed by other materials such as electroconductive resins and also can.
(c) developing apparatus is not limited to the device of circulation alr mode, only has a device that stirs defeated parts and also can.At this moment, only maintain first on the maintaining part and scrape parts.
(d) as being housed inside developer in the developing apparatus, be not limited to monocomponent toner, two-component developing agent also can, simultaneously magnetic, non magneticly all can.
(e) image processing system is not limited to multi-function peripheral, also can be duplicating machine, printer, facsimile unit.
(f) formation of maintaining part is not limited to the formation that illustrates in the foregoing description, for example also it can be arranged to the metal parts that first plate and development station are one.
Claims (11)
1. developing apparatus, it comprises:
Housing can hold toner;
Developer carrier can be configured in the described housing with rotating freely;
First stirs transfer unit, comprises spiral fashion first blade part that can be configured in the first axle part in the described housing with rotating freely and be formed at described the first axle part peripheral part;
Developer removing unit comprises that a plurality of first scrapes parts and holding member, and wherein said a plurality of first scrapes parts corresponding to the configuration and can connecting with described first blade part side by side axially of the helix pitch of described first blade part; Described holding member is installed on the described housing and is used to keep a plurality of first to scrape parts.
2. developing apparatus according to claim 1 also comprises
Second stirs transfer unit, comprise can being configured in the described housing and stirring parallel the second axle part of transfer unit and second blade part that is formed at described the second axle part peripheral part with described first with rotating freely,
It is characterized in that:
Described developer removing unit, the helix pitch that also comprises corresponding described second blade part be configuration and can scrape parts with a plurality of second of the described second blade part butt respectively side by side axially;
Described holding member also keeps described a plurality of second to scrape parts.
3. developing apparatus according to claim 2 is characterized in that:
Described first and second stirs transfer unit also has plate-like portion respectively, described plate-like portion is formed at described first and the peripheral part of the second axle part throughput direction leading section respectively, and radially extend, be respectively applied for to opposite side and stir the agent of transfer unit side supplying developing.
4. developing apparatus according to claim 1 and 2 is characterized in that:
Described a plurality of parts that scrape have elasticity.
5. an image processing system is characterized in that: comprise
Image-carrier;
Housing can hold toner;
Developer carrier can be configured in the described housing with rotating freely;
First stirs transfer unit, and it comprises spiral fashion first blade part that can be configured in the first axle part in the described housing with rotating freely and be formed at described the first axle part peripheral part;
Developer removing unit comprises that a plurality of first scrapes parts and holding member, and wherein said a plurality of first scrapes parts corresponding to the configuration and can connecting with described first blade part side by side axially of the helix pitch of described first blade part; Described holding member is installed on the described housing and is used to keep a plurality of first to scrape parts;
Transfer device, the developer that is used for offering image-carrier is transferred to recording medium.
6. developing apparatus comprises:
Housing can hold toner;
Developer carrier can be configured in the described housing with rotating freely;
First stirs transfer unit, comprises spiral fashion first blade part that can be configured in the first axle part in the described housing with rotating freely and be formed at described the first axle part peripheral part;
Electroconductive component is installed in the described housing;
Developer removing unit comprises that a plurality of first scrapes parts and holding member, wherein said a plurality of first scrape parts can with the described first blade part butt and with described electroconductive component butt; Described holding member is installed on the described housing and is used to keep described first to scrape parts.
7. developing apparatus according to claim 6 is characterized in that: also comprise
Development bias voltage input part is installed on the described housing, and the regulation development bias voltage and the described electroconductive component that put on described developer carrier by input form conduction.
8. developing apparatus according to claim 6 is characterized in that:
Described a plurality of first scrapes the helix pitch axially side by side configuration of parts corresponding to described first blade part;
Described electroconductive component extends along described first direction of principal axis that stirs transfer unit.
9. developing apparatus according to claim 6 is characterized in that:
Comprise that also second stirs transfer unit, comprise can being configured in the described housing and with rotating freely and stir parallel the second axle part of transfer unit and second blade part that is formed at described the second axle part peripheral part with described first,
Described developer removing unit also comprises and can scrape parts with the described second blade part butt and with a plurality of second of described electroconductive component butt;
Described holding member also keeps described second to scrape parts.
10. according to claim 6 or 9 described developing apparatuss, it is characterized in that:
Described a plurality of parts that scrape have elasticity.
11. an image processing system, it comprises:
Image-carrier;
Housing can hold toner;
Developer carrier can be configured in the described housing with rotating freely;
First stirs transfer unit, comprises spiral fashion first blade part that can be configured in the first axle part in the described housing with rotating freely and be formed at described the first axle part peripheral part;
Electroconductive component is installed in the described housing;
Developer removing unit comprises that a plurality of first scrapes parts and holding member, wherein said a plurality of first scrape parts can with the described first blade part butt and with described electroconductive component butt; Described holding member is installed on the described housing and is used to keep described first to scrape parts;
Transfer device, the developer that is used for offering image-carrier is transferred to recording medium.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006084904 | 2006-03-27 | ||
| JP2006084904A JP4808060B2 (en) | 2006-03-27 | 2006-03-27 | Developing device and image forming apparatus having the same |
| JP2006084905 | 2006-03-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101046658A true CN101046658A (en) | 2007-10-03 |
| CN100555108C CN100555108C (en) | 2009-10-28 |
Family
ID=38637098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100900927A Expired - Fee Related CN100555108C (en) | 2006-03-27 | 2007-03-26 | Developing apparatus and comprise the image processing system of this developing apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4808060B2 (en) |
| CN (1) | CN100555108C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110235063A (en) * | 2017-01-31 | 2019-09-13 | 兄弟工业株式会社 | Delevoping cartridge |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8224213B2 (en) | 2008-07-30 | 2012-07-17 | Kyocera Mita Corporation | Toner transferring mechanism, developing apparatus and image forming apparatus therewith |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0626932Y2 (en) * | 1987-02-24 | 1994-07-20 | 三田工業株式会社 | Cleaning device for copiers, etc. |
| JPH0213981A (en) * | 1988-07-01 | 1990-01-18 | Minolta Camera Co Ltd | Developing device |
-
2006
- 2006-03-27 JP JP2006084904A patent/JP4808060B2/en not_active Expired - Fee Related
-
2007
- 2007-03-26 CN CNB2007100900927A patent/CN100555108C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110235063A (en) * | 2017-01-31 | 2019-09-13 | 兄弟工业株式会社 | Delevoping cartridge |
| US11073785B2 (en) | 2017-01-31 | 2021-07-27 | Brother Kogyo Kabushiki Kaisha | Developing cartridge including supply roller, layer thickness regulation blade, and supply electrode electrically connected to both supply roller and layer thickness regulation blade |
| US11733643B2 (en) | 2017-01-31 | 2023-08-22 | Brother Kogyo Kabushiki Kaisha | Developing cartridge including supply roller, layer thickness regulation blade, and supply electrode electrically connected to both supply roller and layer thickness regulation blade |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4808060B2 (en) | 2011-11-02 |
| JP2007264000A (en) | 2007-10-11 |
| CN100555108C (en) | 2009-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1278196C (en) | Processing cartridge and imaging device for electric photograph | |
| CN1115603C (en) | Developing device for image forming apparatus and toner cartridge for use in developing device | |
| CN1776540A (en) | Image forming apparatus | |
| CN101620400B (en) | Toner cartridge and developing device and image forming apparatus using the same | |
| CN1103942C (en) | Electric photography imaging device | |
| CN1837988A (en) | Developing device and image forming device having the same | |
| CN1677268A (en) | Flight developer regulating member, developing apparatus and method of assembling developing apparatus | |
| CN1082682C (en) | Image forming apparatus | |
| US7447468B2 (en) | Developing device and image forming device having the same | |
| CN1991625A (en) | Image forming device | |
| JP2003173083A (en) | Developing device and image forming device using the same | |
| CN101046658A (en) | Developing device and image forming device having the same | |
| JP2007147879A (en) | Liquid development device and wet-type image forming apparatus provided with the same | |
| CN1847994A (en) | Electrophotographic image forming apparatus | |
| JP2012103574A (en) | Cleaning device and image-forming apparatus | |
| JP2003173084A (en) | Developing device and image forming device using the same | |
| JP2004157276A (en) | Image forming apparatus | |
| CN220983727U (en) | Process cartridge and printer | |
| CN1791844A (en) | Image forming device | |
| KR100341787B1 (en) | Image forming apparatus | |
| JP2010015018A (en) | Image forming apparatus | |
| JP2008310106A (en) | Image forming apparatus | |
| JP4854356B2 (en) | Developing device and image forming apparatus having the same | |
| CN117761990A (en) | Scraping device and image forming apparatus | |
| JP2003173081A (en) | Developing device and image forming device using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20160326 |