CN102169306B - Developer conveying device and image forming device - Google Patents

Abstract

The present invention provides a developer conveying device, which has: a falling path through which the developer falls; a developer conveying path that conveys the developer inside and is connected to the falling path; and a developer conveying member that is disposed on the developer conveying path. and rotates to convey the developer in the developer conveying passage. The developer conveying member has a first helical part formed by helically winding in a predetermined direction, and a helical part in the opposite direction to the first helical part. The second spiral portion formed by winding; the first crushing member, which is arranged at the connection portion between the drop passage and the developer conveying passage, and is in contact with the first spiral portion, corresponding to the rotation of the developer conveying member. reciprocating, crushing the developer at the connecting portion; and a second crushing member, which is arranged at the connecting portion and comes into contact with the second spiral portion, reciprocates corresponding to the rotation of the developer conveying member, crushing the developer at the connecting portion. developer.

Description

Developer conveying device and image forming device

This application is a divisional application of the parent application with the application number 200810097946.9 titled "Developer Delivery Device and Image Forming Device" filed on May 16, 2008.

technical field

The invention relates to a developer conveying device and an image forming device.

Background technique

As a conventional technique related to an electrophotographic image forming apparatus, the technique described in the following Patent Document 1 is known.

Patent Document 1 (Japanese Unexamined Patent Publication No. 2000-37481) describes a developer conveying device that drops waste toner from an upper conveying passage (90B) using a rotating conveying screw feeder (82A). And flows into the toner conveying path (82) for conveying the waste toner. In Patent Document 1, a toner agitating member (91) made of an elastic structural resin plate is supported on the wall surface (90A) where the waste toner falls, and the front end of the toner agitating member (91) and the conveying screw supply The helical screw feeder blade (82B) of the screw feeder (82A) engages, and the toner agitating member (91) vibrates by repeating elastic deformation and elastic recovery as the screw feeder blade (82B) rotates. Therefore, by the contact between the aforementioned toner stirring member (91) and the screw feeder blade (82B), the waste toner adhering to the screw feeder blade (82B) can be swept away, and at the same time, it can be carried out by vibration to convey the screw. Agitation of waste toner that falls and accumulates like a feeder (82A).

Patent Document 1: JP-A-2005-37481 (“0028” to “0032”, FIGS. 3 to 5 )

Contents of the invention

The technical subject of the present invention is to improve the performance of pulverizing a developer.

[1] In order to solve the aforementioned technical problems, according to an aspect of the present invention, a developer conveying device is characterized by having:

The drop path of the developer drop;

a developer conveying passage that conveys a developer inside while being connected to the aforementioned drop passage;

a developer conveying member disposed in the developer conveying passage, and rotating to convey the developer in the developer conveying passage;

The first pulverizing member is arranged at the connecting portion between the falling passage and the developer conveying passage, is in contact with the developer conveying member, reciprocates in accordance with the rotation of the developer conveying member, and crushes the connection. developer at the portion; and

a second pulverizing member arranged at the connecting portion, contacts the developer conveying member, reciprocates in response to the rotation of the developer conveying member, and pulverizes the developer at the connecting portion,

The first pulverizing member and the second pulverizing member reciprocate in directions of approaching and separating from each other in accordance with the rotation of the developer conveying member.

[2] The developer conveying device described in [1] may further include:

an inflow port that causes the developer to flow into the aforementioned drop passage;

a discharge port disposed directly below the inflow port in the direction of gravity, and discharges the developer falling in the falling passage and the developer conveyed in the developer conveying passage;

a first inner wall crushing unit provided on the first crushing member, and crushes the developer adhering to the inner wall surface of the falling passage; and

a second inner wall pulverizing section provided on the second pulverizing member and pulverizing the developer adhering to the inner wall surface of the falling passage,

A part of the first crushing member may be located on the inner side of the discharge port above the gravitational direction in a state closest to the second crushing member,

A part of the second crushing member may be positioned on the inner side of the discharge port above the gravitational direction in a state closest to the first crushing member.

[3] On the developer conveying member described in [2],

The first pulverizing member and the second pulverizing member may contact each other above the discharge port in the direction of gravity while being closest to each other.

[4] In order to solve the aforementioned technical problem, according to another aspect of the present invention, a developer conveying device is characterized by having:

The drop path of the developer drop;

a developer conveying passage that conveys a developer inside while being connected to the aforementioned drop passage;

a developer conveying member that is disposed in the developer conveying passage and rotates to convey the developer in the developer conveying passage, the developer conveying member having a first helical portion wound helically in a predetermined direction , and a second helical part formed by helically winding in the opposite direction to the first helical part;

The first pulverizing member is arranged at the connecting portion between the falling passage and the developer conveying passage, is in contact with the first spiral portion, reciprocates in accordance with the rotation of the developer conveying member, and crushes the connecting portion. developer at the portion; and

The second pulverizing member is arranged at the connecting portion, is in contact with the second spiral portion, reciprocates in accordance with the rotation of the developer conveying member, and pulverizes the developer at the connecting portion.

[5] The developer delivery device described in [4] may further include:

an inflow port that causes the developer to flow into the aforementioned drop passage;

a discharge port disposed directly below the inflow port in the direction of gravity, and discharges the developer falling in the falling passage and the developer conveyed in the developer conveying passage;

a first inner wall crushing unit provided on the first crushing member, and crushes the developer adhering to the inner wall surface of the falling passage; and

a second inner wall pulverizing section provided on the second pulverizing member and pulverizing the developer adhering to the inner wall surface of the falling passage,

A part of the first crushing member may be located on the inner side of the discharge port above the gravitational direction in a state closest to the second crushing member,

A part of the second crushing member may be positioned on the inner side of the discharge port above the gravitational direction in a state closest to the first crushing member.

[6] On the developer conveying member described in [5],

The first pulverizing member and the second pulverizing member may contact each other above the discharge port in the direction of gravity while being closest to each other.

[7] In the developer conveying device described in [5] or [6],

The developer conveying member may be provided with a portion where no spiral portion is formed between the first spiral portion and the second spiral portion and directly above the discharge port in the direction of gravity.

[8] The developer conveying device described in [7] may further include:

a first conveying member contact portion provided on the first pulverizing member and in contact with the developer conveying member on which the spiral portion is not formed; and

The second conveying member contact portion is provided on the second pulverizing member and is in contact with the developer conveying member on which the spiral portion is not formed,

The first conveying member contact portion and the second conveying member contact portion may reciprocate in contact with the developer conveying member as the first crushing member and the second crushing member move, and the crushed particles adhere to the developer conveying member. The developer on the developer delivery member.

[9] On the developer conveying member described in any one of [4] to [6],

The first crushing member and the second crushing member may be integrally formed.

[10] In the developer conveying device described in [9], wherein

The axial movement distance when the first helical part makes one helical turn is different from the axial movement distance when the second helical part makes one helical turn.

[11] In order to solve the aforementioned technical problems, according to another aspect of the present invention, a developer conveying device is characterized by having:

like a holding body;

a developing device that develops the latent image formed on the surface of the aforementioned image holder into a visible image;

A primary transfer device, which primary transfers the visible image on the surface of the aforementioned image holder to the intermediate transfer body;

like the holder cleaner, which recycles once attached to the aforementioned

Cleaning the aforementioned image holder with the developer on the surface of the image holder;

a final transfer device, which transfers the visible image on the surface of the aforementioned intermediate transfer body to the medium finally;

an intermediate transfer body cleaner, which recovers the developer adhering to the surface of the intermediate transfer body to clean the intermediate transfer body;

a drop passage for dropping and conveying the developer recovered by the aforementioned intermediate transfer body cleaner;

a developer conveying passage that internally conveys the developer recovered by the aforementioned image holder cleaner, while being connected to the aforementioned falling passage;

a developer conveying member that is disposed in the developer conveying passage and rotates to convey the developer in the developer conveying passage, the developer conveying member having a first helical portion wound helically in a predetermined direction , and a second helical part formed by helically winding in the opposite direction to the first helical part;

The first pulverizing member is arranged at the connecting portion between the falling passage and the developer conveying passage, is in contact with the first spiral portion, reciprocates in accordance with the rotation of the developer conveying member, and crushes the connecting portion. developer at the portion; and

The second pulverizing member is arranged at the connecting portion, is in contact with the second spiral portion, reciprocates in accordance with the rotation of the developer conveying member, and pulverizes the developer at the connecting portion.

[12] The developer conveying device described in [11] may further include:

an inflow port that causes the developer to flow into the aforementioned drop passage;

a discharge port disposed directly below the inflow port in the direction of gravity, and discharges the developer falling in the falling passage and the developer conveyed in the developer conveying passage;

a first inner wall crushing unit provided on the first crushing member, and crushes the developer adhering to the inner wall surface of the falling passage; and

a second inner wall pulverizing section provided on the second pulverizing member and pulverizing the developer adhering to the inner wall surface of the falling passage,

A part of the first crushing member may be located on the inner side of the discharge port above the gravitational direction in a state closest to the second crushing member,

A part of the second crushing member may be positioned on the inner side of the discharge port above the gravitational direction in a state closest to the first crushing member.

[13] On the developer conveying member described in [12],

The first pulverizing member and the second pulverizing member may contact each other above the discharge port in the direction of gravity while being closest to each other.

[14] In the developer conveying device described in [12] or [13],

The developer conveying member may be provided with a portion where no spiral portion is formed between the first spiral portion and the second spiral portion and directly above the discharge port in the direction of gravity.

[15] The developer conveying device described in [14] may further include:

a first conveying member contact portion provided on the first pulverizing member and in contact with the developer conveying member on which the spiral portion is not formed; and

The second conveying member contact portion is provided on the second pulverizing member and is in contact with the developer conveying member on which the spiral portion is not formed,

The first conveying member contact portion and the second conveying member contact portion may reciprocate in contact with the developer conveying member as the first crushing member and the second crushing member move, and the crushed particles adhere to the developer conveying member. The developer on the developer delivery member.

[16] On the developer conveying member described in [11],

The first crushing member and the second crushing member may be integrally formed.

[17] The developer conveying device described in [16], wherein

The axial movement distance when the first helical part makes one helical turn is different from the axial movement distance when the second helical part makes one helical turn.

The effect of the invention

According to the aspect of [1] or [4], compared with the case not having the structure of the present invention, the performance of pulverizing the developer can be improved by pinching and pulverizing the developer falling in the drop passage.

According to the aspects of [2], [5], and [12], when the developer adhering to the drop passage is crushed, the crushed developer can be conveyed to the discharge port as the respective crushing members move.

According to the schemes of [3], [6], and [13], above the discharge port, the pulverized developer can be sandwiched by the contacting first pulverizing member and the second pulverizing member, and the pulverized developer can be dropped to the discharge port. .

According to the aspects [7] and [14], the developer having a size that cannot be pulverized can be conveyed to the discharge port through the space where the spiral portion is not formed so that the spiral portion does not become an obstacle.

According to the aspects of [8] and [15], compared with the case where the present invention is not adopted, the developer can be reduced to the non-formed spiral portion where the developer is more likely to adhere to the developer conveying member than the region where the spiral portion is formed. area of attachment.

According to the aspects of [9] and [16], the vibration of one side of the first pulverizing member and the second pulverizing member can be transmitted to the other side, and the performance of pulverizing the developer can be maintained above a predetermined level.

According to the aspect of [17], the vibration of the pulverizing member whose movement distance is large is transmitted to the pulverization member whose movement distance is small, and the pulverization member whose movement distance is small can be vibrated.

According to the aspect of [11], compared with the case without the structure of the present invention, it can be recovered by a cleaner, the performance of crushing the developer with low fluidity and easy to agglomerate is improved, and the clogging of the developer is reduced.

Description of drawings

FIG. 1 is an overall explanatory diagram of an image forming apparatus according to Embodiment 1 of the present invention.

FIG. 2 is an enlarged explanatory diagram of main parts of the image forming apparatus according to the first embodiment.

3 is an explanatory view of the developer replenishing device and the recovered developer conveying device of the first embodiment.

4 is an enlarged view of main parts of the developer conveying device according to Embodiment 1 of the present invention, showing a first developer pulverizing member as an example of a first pulverizing member and a second developer as an example of a second pulverizing member. Explanatory diagram of the state where the crushing parts are separated from each other.

5 is an enlarged view of a main part of the developer conveying device according to Example 1 of the present invention, and is an explanatory diagram illustrating a state where a first pulverizing member and a second pulverizing member are close to each other.

6 is an explanatory diagram showing a cross-sectional oblique view of main parts inside the drop passage of the first embodiment.

7 is an explanatory view of main parts of a discharge port portion of a developer conveying passage in Embodiment 1. FIG.

8 is an explanatory diagram of a crushing member and a crushing member mounting member of the first embodiment.

FIG. 9 is an explanatory perspective view of a pulverizing member in Example 1. FIG.

10 is an explanatory diagram of pulverizing the developer during the reciprocating movement of the pulverizing members in Example 1, FIG. 10A is an explanatory diagram of a state where the pulverizing members are separated from each other, and FIG. 10B is an explanatory diagram of a state where the pulverizing members are close to each other. picture.

11 is an explanatory diagram of the operation of Embodiment 1, FIG. 11A is an explanatory diagram of the initial state of a conventional waste developer conveying device, and FIG. 11B is a state in which developer adheres to the inner wall surface from the state shown in FIG. Explanatory diagrams, FIG. 11C is an explanatory diagram of a state in which the agglomeration of the attached developer is increased from the state shown in FIG. 11B , and FIG. 11D is an illustration of a state in which the agglomeration of the developer is further increased from the state shown in FIG. 11C 11E is an explanatory view of a state in which developer agglomeration further increases and clogs the drop passage from the state shown in FIG.

12 is an explanatory diagram of main parts of the image forming apparatus according to the second embodiment, and is an explanatory diagram corresponding to the separation position in FIG. 5 of the first embodiment.

13 is an explanatory diagram of main parts of the image forming apparatus according to the second embodiment, and is an explanatory diagram corresponding to a close position in FIG. 6 of the first embodiment.

FIG. 14 is an explanatory diagram of a main part of a pulverizing unit according to the second embodiment, and is an explanatory diagram corresponding to FIG. 8 of the first embodiment.

Detailed ways

Hereinafter, examples as specific examples of embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to the following examples.

In addition, in order to facilitate the understanding of the following description, in the drawings, the front-rear direction is the X-axis direction, the left-right direction is the Y-axis direction, and the up-down direction is the Z-axis direction. Arrows X, -X, Y, -Y, Z and -Z represent directions or orientations, which are front, rear, right, left, top, bottom or front, back, right, left, up, and down, respectively.

In addition, the symbols with "·" in "○" in the figure represent marks from the back side of the paper to the front side, and the symbols with "x" in "○" represent marks from the front side of the paper to the back side.

In addition, in the following description using the drawings, illustration of members not necessary for the description is appropriately omitted for the sake of easy understanding.

Example 1

FIG. 1 is an overall explanatory diagram of an image forming apparatus according to Embodiment 1 of the present invention.

In FIG. 1 , the image forming apparatus U has: an automatic document feeder U1; and an image forming apparatus main body U2 supporting the automatic document feeder U1 and having a transparent document reading surface PG at the upper end.

The automatic document feeder U1 has: a document feeder TG1 that stacks and stores a plurality of documents Gi to be copied; The document Gi conveyed by the upper document reading position.

The image forming apparatus main body U2 includes: an operation unit UI for allowing a user to input operation command signals such as operation start of an image forming operation; and an exposure optical system A and the like.

The reflected light from the document conveyed on the document reading surface PG by the automatic document conveying device U1 or the document manually placed above the document reading surface PG is converted into red by the solid-state imaging device CCD via the exposure optical system A. Electrical signals of R, green G, and blue B.

The image information conversion unit IPS converts the aforementioned RGB electrical signals input from the solid-state imaging element CCD into image information of black K, yellow Y, magenta M, and cyan C, and temporarily stores them. Image information for latent image formation is output to the latent image forming device drive circuit DL.

In addition, when the document image is a so-called black and white image that is a monochrome image, only black image information is input to the latent image forming device drive circuit DL.

The aforementioned latent image forming device drive circuit DL has drive circuits for respective colors Y, M, C, and K not shown in the figure, and outputs signals corresponding to input image information to latent images arranged for respective colors at predetermined timings. Devices LHy, LHm, LHc, LHk are formed.

FIG. 2 is an enlarged explanatory diagram of main parts of the image forming apparatus according to the first embodiment.

The visible image forming devices Uy, Um, Uc, and Uk disposed in the center of the image forming apparatus U in the direction of gravity form visible images of Y, M, C, and K colors, respectively.

The latent image writing lights Ly, Lm, Lc, and Lk of Y, M, C, and K emitted from the latent image writing light sources of the latent image forming devices LHy to LHk are incident on the rotating image holders PRy, PRm, respectively. , PRc, PRk. Furthermore, in Embodiment 1, the aforementioned latent image forming devices LHy to LHk are constituted by a so-called LED array.

The above visible image forming device Uy of Y includes a rotating image holder PRy, a charger CRy, a latent image forming device LHy, a developing device Gy, a transfer device T1y, and an image holder cleaner CLy. In addition, in Embodiment 1, the aforementioned image holder PRy, charger CRy, and image holder cleaner CLy are constituted as an image holder unit that is integrally detachable from the image forming apparatus main body U2.

All of the visible image forming devices Um, Uc, and Uk described above are configured in the same manner as the visible image forming device Uy of Y described above.

In Fig. 1 and Fig. 2, after the aforementioned image holders PRy, PRm, PRc, and PRk are charged by the chargers CRy, CRm, CRc, and CRk respectively, at the image writing positions Q1y, Q1m, Q1c, and Q1k, use The aforementioned latent image writing lights Ly, Lm, Lc, and Lk form electrostatic latent images on the surface. The electrostatic latent images on the surface of the aforementioned image holders PRy, PRm, PRc, and PRk are used as an example of the developer holders of the developers Gy, Gm, Gc, and Gk on the developing areas Q2y, Q2m, Q2c, and Q2k. The developer held by the developing rollers GRy, GRm, GRc, and GRk is developed into a toner image as an example of a visible image.

The developed toner images are conveyed to primary transfer areas Q3y, Q3m, Q3c, and Q3k in contact with an intermediate transfer belt B as an example of an intermediate transfer body. In the primary transfer areas Q3y, Q3m, Q3c, Q3k, to the primary transfer units T1y, T1m, T1c, T1k arranged on the back side of the intermediate transfer belt B, the power supply circuit controlled by the control part C E, a primary transfer voltage opposite to the charging polarity of the toner is applied at a predetermined timing.

The toner images on the respective image holders PRy to PRk are primary transferred onto the intermediate transfer belt B by the primary transfer units T1y, T1m, T1c, and T1k. Residues and attachments on the surface of the image holders PRy, PRm, PRc, and PRk after the primary transfer are cleaned with image holder cleaners CLy, CLm, CLc, and CLk. The surfaces of the image holders PRy, PRm, PRc, and PRk after cleaning are charged again by the chargers CRy, CRm, CRc, and CRk.

Above the aforementioned image holders PRy to PRk, a transfer belt module BM which is an example of an intermediate transfer device capable of moving up and down and protruding forward is arranged. The aforementioned transfer belt module BM has: the aforementioned intermediate transfer belt B; a transfer belt driving roller Rd as an example of an intermediate transfer body driving member; and a tension roller Rt as an example of an intermediate transfer body tension setting member. ; a walking roll Rw as an example of a snaking motion preventing member; an idle roller Rf as an example of a driven member; an auxiliary roller T2a as an example of a secondary transfer area opposing member; and the aforementioned 1 Secondary transfer units T1y, T1m, T1c, T1k. Further, the intermediate transfer belt B is supported by the transfer belt support rollers Rd, Rt, Rw, Rf, T2a as an example of the intermediate transfer body supporting member composed of the respective rollers Rd, Rt, Rw, Rf, T2a. Rotatably supported.

Facing the surface of the intermediate transfer belt B in contact with the aforementioned auxiliary roller T2a, a secondary transfer roller T2b as an example of a secondary transfer member is arranged, and each of the aforementioned rollers T2a, T2b constitutes a final transfer unit. An example of the 2nd transferer T2. In addition, the secondary transfer area Q4 is formed by using the area facing the secondary transfer roller T2b and the intermediate transfer belt B. As shown in FIG.

In the aforementioned primary transfer areas Q3y, Q3m, Q3c, and Q3k, the single-color or multi-color toner images that are superimposedly transferred onto the intermediate transfer belt B by the primary transfer units T1y, T1m, T1c, and T1k in sequence, It is conveyed to the aforementioned secondary transfer area Q4.

Below the aforementioned visible image forming devices Uy to Uk, three stages of a pair of left and right guide rails GR as an example of guide members are provided, and paper feed trays TR1 to TR1 as an example of paper feed containers are supported on the guide rails GR TR3, making it possible to enter and exit in the front and rear directions. The recording paper S, which is an example of the medium stored in the paper feeding trays TR1 to TR3, is taken out by the pickup roller Rp, which is an example of a medium take-out member, and is taken out one by one by the distribution roller Rs, which is an example of a medium distribution member. separate. Then, the recording paper S is conveyed by a plurality of conveyance rollers Ra as an example of a medium conveyance member along a paper conveyance path SH as an example of a medium conveyance path, and is sent to the paper conveyance direction arranged in the secondary transfer area Q4. The resist roller Rr as an example of the transfer area conveyance timing adjustment member on the upstream side. The paper conveying device SH+Ra+Rr is constituted by the aforementioned paper conveying path SH, paper conveying roller Ra, resist roller Rr, and the like.

The resist roller Rr transports the recording paper S to the secondary transfer area Q4 in accordance with the timing at which the toner image formed on the intermediate transfer belt B is transported to the secondary transfer area Q4 . When the recording paper S passes through the secondary transfer area Q4, the auxiliary roller T2a is grounded, and on the secondary transfer unit T2b, the charge polarity opposite to that of the toner is applied from the power circuit E controlled by the control unit C. 2nd transfer voltage. At this time, the toner image on the intermediate transfer belt B is transferred onto the recording paper S by the secondary transfer unit T2.

The intermediate transfer belt B after the secondary transfer is cleaned by a transfer belt cleaner CLb which is an example of an intermediate transfer body cleaner.

The recording paper S on which the toner image has been transferred twice is conveyed to the heating roller Fh, which is an example of a heating fixing member, and the pressure roller Fp, which is an example of a pressure fixing member, of the fixing device F. The pressure-bonded area, that is, the fixing area Q5, is heated and fixed when passing through the aforementioned fixing area. The recording paper S that has been heated and fixed is discharged from a discharge roller Rh that is an example of a medium discharge member to a paper discharge tray Rh that is an example of a medium discharge unit.

Further, on the surface of the aforementioned heating roller Fh, a releasing agent for enhancing the releasability of the recording paper S from the aforementioned heating roller is applied by a releasing agent applying device Fa.

Above the transfer belt module BM, developer cartridges Ky, Km, Kc, and Kk as examples of developer containers for storing developers of yellow Y, magenta M, cyan C, and black K are disposed. The developer contained in the developer cartridges Ky, Km, Kc, and Kk is supplied to each of the developers Gy from a developer supply passage described later in accordance with the consumption of the developer in the developers Gy, Gm, Gc, and Gk. , Gm, Gc, and Gk for replenishment. Also, in Example 1, as the aforementioned developer, a two-component developer comprising a magnetic carrier and an additive-added toner is constituted.

In FIG. 1, the aforementioned image forming apparatus U has an upper casing UF and a lower casing LF. ~ Uk is arranged on the upper part, that is, the transfer belt module BM and the like.

In addition, the guide rail GR supporting the paper feeding trays TR1 to TR3, and the paper feeding members that feed paper from the paper trays TR1 to TR3, that is, the pickup roller Rp and distribution roller RS are supported on the lower case LF. , Paper conveying roller Ra, etc.

(Description of developer replenishing device)

3 is an explanatory view of the developer replenishing device and the recovered developer conveying device of the first embodiment.

In addition, in FIG. 3 , illustration of parts such as the chargers CRy to CRk and magenta is appropriately omitted for the sake of easy understanding.

In FIGS. 1 to 3 , the developer cartridges Ky, Km, Kc, and Kk for storing the developer for replenishment are supported by developer replenishing devices 31y, 31m, 31c, and 31k, and are detachable and replaceable. The developer replenishing devices 31y to 31k extend from the developer cartridges Ky to Kk to the developing devices Gy to Gk, and have developer replenishing passages 32y to 32k for conveying the developer inside. The developer supply passages 32y to 32k are set so as to supply the developer to the developing devices Gy to Gk on the front side of the image forming apparatus U. Inside the developer supply passages 32y to 32k, developer supply members 33y to 33k are disposed, which rotate and transport the developer in the developer supply passages 32y to 32k. At the ends of the developer supply passages 32y to 32k on the side of the developing devices Gy to Gk, bellows-shaped connecting members 34y to 34k are arranged for moving the developing devices Gy to Gk during maintenance, inspection, replacement, etc. , the connection state of the developer supply passages 32y to 32k is maintained.

In addition, in FIG. 3 , a deteriorated developer discharge port 36 is formed in each of the aforementioned developing devices Gy to Gk to discharge the deteriorated developer inside. Therefore, in the developing devices Gy to Gk of Embodiment 1, high-concentration two-component developers containing toner and carrier are replenished by the developer replenishing devices 31y to 31k, while degraded developer containing carrier is discharged from the degraded developer. Outlet 36 discharges, thereby gradually replacing the carrier inside.

(like the description of holder cleaner and intermediate transfer cleaner)

In FIG. 2 , each of the aforementioned image holder cleaners CLy to CLk has a cleaning container 41 . Removing members 42 and 43 are arranged in the cleaning container 41 and are in contact with the image holders PRy to PRk to remove residues such as residual developer and paper dust adhering to the surfaces. In Embodiment 1, as an example of the aforementioned residue removing members 42, 43, there are: a cylindrical brush-shaped cleaning brush 42 that contacts the image holders Pry to PRk while rotating; and a plate-shaped cleaning blade. The plate 43, which is pressed against the image holders Pry to PRk, scrapes off the residue. Moreover, in Embodiment 1, both the aforementioned cleaning brush 42 and the cleaning blade 43 are provided, but any one of them may be provided. In addition, any conventionally known residue removal member such as a cloth made of cloth may be used. residue removal parts.

In FIG. 3 , a residue discharge passage 46 is formed at the front end of the cleaner 41 , extends downward, and is connected to the inside of the cleaning container 41 , and discharges the residue conveyed by the residue conveying member 44 to the outside of the developer storage chamber. A residue discharge port 46 a that discharges residue conveyed by the residue conveying member 44 is formed at a lower end portion of the residue discharge passage 46 .

In FIGS. 2 and 3 , the aforementioned transfer belt cleaner CLb also has a cleaning container 51 , removing members 52 and 53 , a residue conveying member 54 , and a residue discharge passage 56 similarly to the image holder cleaners CLy to CLk. And the residue discharge port 56a.

(Description of recovered developer conveying device)

4 is an enlarged view of main parts of the developer conveying device according to Embodiment 1 of the present invention, showing a first developer crushing member as an example of a first crushing member and a second developer crushing member as an example of a second crushing member. Explanatory diagram of the state where parts are separated from each other.

5 is an enlarged view of a main part of the developer conveying device according to Example 1 of the present invention, and is an explanatory diagram illustrating a state where a first pulverizing member and a second pulverizing member are close to each other.

6 is an explanatory diagram showing a cross-sectional oblique view of main parts inside the drop passage of the first embodiment.

7 is an explanatory view of main parts of a discharge port portion of a developer conveying path in Example 1. FIG.

In FIG. 3 , a recovered developer conveying device 61 , which is an example of a developer conveying device, is disposed below each of the visible image forming devices UY to UK on the front side of the image forming device. The recovered developer conveying device 61 has a recovered developer conveying passage 62 which, as an example of a developer conveying passage, extends obliquely from the lower left to the upper right. On the recovered developer conveyance passage 62 , a developing device discharge connection passage 63 is formed extending upward, which is respectively connected to the degraded developer discharge ports 36 of the respective developing devices Gy to Gk. Similarly, image holder cleaner discharge connection passages 64 are formed extending upward on recovered developer conveyance passage 62 , and are respectively connected to residue discharge ports 46 a of image holder cleaners CLy to CLk. A recovered developer drop path 66 is formed at the upper right end portion of the recovered developer transport path 62 , and extends upward as an example of a drop path.

In FIGS. 3 to 6, at the upper end of the recovered developer drop passage 66, a recovered developer inflow port 67 is formed, which is connected to the residue discharge port 56a of the transfer belt cleaner CLb as a means for inflowing the developer. As an example of the inflow port, the lower end of the recovered developer drop passage 66 and the upper right end of the recovered developer transport passage 62 are connected by a connecting portion 68 . Therefore, the aforementioned recovered developer drop passage 66 drops and conveys the developer discharged from the residue discharge port 56 a inside.

In FIG. 6 and FIG. 7, a recovered developer discharge port 69 is formed below the recovered developer drop passage 66, and as an example of a discharge port, it is discharged in the recovered developer transport passage 62 or the recovered developer drop passage 66. The developer transported in. In FIG. 3 , the recovered developer discharge port 69 is connected to a developer storage container 70 that stores recovered developer.

Furthermore, in Embodiment 1, each of the developer discharge connection passage 63 and the image holder cleaner discharge connection passage 64 is constituted by a drop passage through which the developer is dropped and conveyed inside.

In FIG. 3 , inside the recovered developer transport path 62 , a recovered developer transport member 71 is arranged as an example of a developer transport member, which transports the developer in the recovered developer transport path 62 from the lower left to the upper right. delivery. In FIGS. 3 to 7, the recovered developer conveying member 71 has: a rotating shaft 71a; a first spiral blade 71b as an example of a first spiral portion formed from the lower left end to the upper right of the rotating shaft 71a, and formed in a helical winding in a predetermined direction; and a second helical blade as an example of a second helical portion is formed at the upper right end of the rotating shaft 71a, and is formed in a helical direction opposite to that of the first helical blade 71b. formed by coiling. In the recovered developer conveying member 71 of the first embodiment, a non-spiral forming portion 71d is provided between the first screw blade 71b and the second screw blade 71c, and is formed only by the rotating shaft 71a without forming a screw blade. In FIG. 7 , the aforementioned non-spiral forming portion 71 d is set at a position corresponding to the inner side of the aforementioned recovered developer discharge port 69 . Therefore, as shown in FIG. 7 , the first helical blade 71 b and the second helical blade 71 c are formed so as to reach a position corresponding to the inside of the recovered developer discharge port 69 above the recovered developer discharge port 69 in the direction of gravity. Also, in Example 1, the axial movement distance corresponding to one helical rotation of the first helical blade 71b, that is, the so-called pitch, is set larger than the pitch of the second helical blade 71c.

8 is an explanatory diagram of a crushing member and a crushing member mounting member of the first embodiment.

FIG. 9 is an explanatory perspective view of a pulverizing member in Example 1. FIG.

In FIGS. 3 to 6 , a developer crushing member 72 is arranged inside the recovered developer drop passage 66 as an example of a crushing member. In FIGS. 8 and 9, the developer crushing member 72 is formed by bending a wire-shaped member, and has a first recovered developer crushing member 73 as an example of the first crushing member, which is arranged on the left side; and the second recovered developer pulverizing member 74 as an example of the second pulverizing member is arranged on the right side. In addition, in Example 1, in order to reduce the wear and noise of the recovered developer conveying member 71, a stainless steel wire with a diameter of 0.4 mm was used, but it is not limited to this, and wires of any thickness and any material can be used according to the design or specifications. .

The first recovered developer crushing member 73 has a first extending portion 73a as an example of a first inner wall crushing portion, which extends in the vertical direction and crushes the developer adhering to the inner wall of the recovered developer drop passage 66; An annular portion 73b, which is continuous with the lower end of the first extending portion 73a, and is bent into an annular shape; and a first spiral contact portion 73c, which is formed continuously with the lower end of the aforementioned annular portion 73b, and crosses the recovered developer conveying The rotating shaft 71a of the member 71 is in contact with the first screw blade 71b corresponding to the rotation of the recovered developer conveying member 71; to prevent the developer from adhering to the front wall surface of the connecting portion 68. The second recovered developer pulverizing member 74 also has, like the first recovered developer pulverizing member 73, a second extending portion 74a as an example of a second inner wall pulverizing portion, an annular portion 74b, and a second spiral The 2nd spiral contact part 74c which the blade|wing 71c contacts, and the connection part wall surface adhesion prevention part 74d.

In FIG. 9, a first supported portion 76 and a second supported portion are respectively provided on the upper ends of the first extension portion 73a of the first recovered developer crushing member 73 and the second extension portion 74a of the second recovered developer crushing member 74. The supported portion 77 is formed by bending inward in a U-shape. Inside the first supported portion 76 and the second supported portion 77 , a U-shaped wall surface adhesion preventing portion 78 extending downward is formed. Since the wall surface adhesion preventing portion 78 is integrally formed with the first recovered developer grinding member 73 and the second recovered developer grinding member 74, it corresponds to the first recovered developer grinding member 73 and the second recovered developer grinding member 74. Vibrates by moving back and forth. In this embodiment, since it is arranged directly below the gravitational direction of the recovered developer inlet 67, and between the first recovered developer crushing member 73 and the second recovered developer crushing member 74, it is recovered from the first recovered developer crushing member 74. Both the developer crushing member 73 and the second recovered developer crushing member 74 receive the force of the vibration, and at the same time reduce the positive direction of gravity of the developer to the recovered developer inlet 67 where the developer is easily attached in the recovered developer drop passage 66 . Attachment to the underlying wall.

In FIG. 4, FIG. 5, and FIG. 8, the aforementioned developer pulverizing member 72 is held in a state where the aforementioned supported portions 76, 77 are supported by a pulverizing member supporting portion 81a that is formed in conjunction with the pulverizing member supporting portion 81a. The connecting port forming member 81 of the recovered developer inlet 67 is integrally formed, and is prevented from coming off by the crushing member fixing member 82 fitted above the crushing member support portion 81 a. Therefore, by attaching the connection port forming member 67 supporting the developer crushing member 72 by the aforementioned crushing member fixing member 82 to the upper end portion of the recovered developer falling passage 66, the developer crushing member 72 is arranged in the recovered developer falling passage 66. internal. In addition, the above-mentioned pulverizing member supporting part 81a of Embodiment 1 has a groove portion 81b for accommodating the supported portion 76, and the distance between the pulverizing member fixing member 82 and the lower end of the groove portion 81b, that is, the depth of the groove portion 81b, is set to be greater than The thickness of the supported portion 76 is 0.7 mm. Therefore, as shown in FIGS. 4 and 5 , the supported portions 76 and 77 are supported with gaps, and are set so that when the first recovered developer pulverizing member 73 and the second recovered developer pulverizing member 74 vibrate, Partial vibrations at the supported portions 76, 77 are not attenuated completely.

(Effect of Embodiment 1)

In the image forming apparatus U of Embodiment 1 having the aforementioned structure, the deteriorated developer discharged from the developing devices Gy to Gk or the developer recovered by the image holder cleaners CLy to CLk is returned by the recovered developer conveying member that rotates. 71 , conveyed in the recovered developer conveying passage 62 and recovered by the developer recovering container 70 . At this time, the developer is conveyed to the upper right by the first helical blade 71b of the recovered developer conveying member 71, and at the upper right end, is conveyed in the reverse direction by the second helical blade 71c, and is conveyed to the recovered developer discharge port 69. .

On the other hand, the developer recovered from the intermediate transfer belt B by the transfer belt cleaner CLb falls through the recovered developer drop path 66 and is recovered by the developer recovery container 70 .

At this time, the developer pulverizing member 72 arranged in the recovered developer falling passage 66 is arranged such that the lower ends of the first recovered developer pulverizing member 73 and the second recovered developer pulverizing member 74 are in contact with the first screw blade 71b and the second screw blade. 71c contacts, and corresponding to the rotation of the recovered developer conveying member 71, each pulverizing member 73, 74 is elastically deformed, so that the contact position changes. Therefore, by changing the contact position, moving from the position shown in FIG. 4 to the approaching position shown in FIG. Figure 4 shows the separation position. As a result, the first recovered developer pulverizing member 73 and the second recovered developer pulverizing member 74 repeatedly reciprocate between the separation position and the close position.

10 is an explanatory diagram of pulverizing developer when the pulverizing members of Example 1 reciprocate, FIG. 10A is an explanatory diagram of a state where the pulverizing members are separated from each other, and FIG. 10B is an explanatory diagram of a state where the pulverizing members are close to each other. .

In Fig. 4, Fig. 5, Fig. 10, using the developer pulverizing member 72 of Embodiment 1, corresponding to the rotation of the recovered developer conveying member 71, the first recovered developer pulverizing member 73 and the second recovered developer pulverizing member 74 moves in the directions of approaching and separating from each other. That is to say, when moving from the separated state shown in FIG. 10A to the close state shown in FIGS. 5 and 10B, the lumped developer is crushed by the first recovered developer crushing member 73 and the second recovered developer crushing member. 74 clamped, and was crushed under force. In addition, when approaching the state shown in FIG. 5 and FIG. 10B, the contact between the recovered developer pulverizing members 73 and 74 and the respective screw blades 71b and 71c is released, and return to the state shown in FIG. 4 and FIG. 10A by elastic recovery. state, vibration is performed to crush the developer.

Therefore, at the connection portion 68 between the recovered developer drop passage 66 and the recovered developer transport passage 62, the first recovered developer pulverizing member 73 and the second recovered developer pulverizing member 74 are vibrated to pulverize the developer and simultaneously , the developer is pinched by the first collected developer crushing member 73 and the second recovered developer crushing member 74 to crush it. Therefore, at the connection portion 68, compared with the case where a crushing member that simply vibrates is provided, the developer is less likely to agglomerate into a lump or the developer is clogged, and in particular, it is possible to prevent the developer from falling in the recovered developer drop passage 66. The developer cannot be discharged.

In addition, with the developer crushing member 72 of Embodiment 1, when the first recovered developer crushing member 73 and the second recovered developer crushing member 74 move from the separated position to the approaching position, with respect to the recovered developer discharge 69, it is Move from outside to inside. Therefore, the first recovered developer crushing member 73 and the second recovered developer crushing member 74 sweep the developer toward the recovered developer discharge port 69 by utilizing the ring portions 73b, 74b and the connecting portion wall surface adhesion prevention portions 73d, 74d. way to move. Therefore, by conveying the developer by the developer crushing member 72 in addition to the conveyance by the collected developer conveying member 71 , the conveyance force can be increased compared to the case of a purely vibrating crushing member. In particular, the effective area of cleaning is increased and the conveying force is improved by using the ring portions 73b, 74b and the wall surface adhesion preventing portions 73d, 74d of the connecting portion. In addition, in Embodiment 1, the first screw blade 71b and the second screw blade 71c are formed to the inner side of the recovered developer discharge port 69, and the first recovered developer crushing member 73 and the second screw blade 71b, 71c in contact with each The recovered developer crushing member 74 moves to the inside of the recovered developer discharge port 69 to sweep up the developer and transports it to the recovered developer discharge port 69 .

11 is an explanatory diagram of the operation of Embodiment 1, FIG. 11A is an explanatory diagram of the initial state of a conventional waste developer conveying device, and FIG. 11B is an illustration of a state where developer adheres to the inner wall surface from the state shown in FIG. 11A. 11C is an explanatory diagram of a state in which the agglomeration of the attached developer increases from the state shown in FIG. 11B , and FIG. 11D is an illustration of a state in which the agglomeration of the developer further increases from the state shown in FIG. 11C 11E is an explanatory view of a state in which developer agglomeration further increases and clogs the drop passage from the state shown in FIG.

In FIG. 11, in the structure where the developer pulverizing member 72 is not provided, the area inside the radius of rotation of the spiral blades 71b, 71c of the recovered developer conveying member 71 can convey the developer, but the area outside the conveying blades 71b, 71c In the area where the conveying force of the developer is weak, as shown in FIG. 11B , the developer adheres to the upper part of the inner wall surface of the recovered developer conveying path 62 . If the attached developer is agglomerated and increased, it is stretched into a cap shape as shown in FIG. 11C and FIG. As shown in FIG. 11E , the recovered developer drop passage 66 is blocked. In the recovered developer conveying device 61 of the first embodiment, when the developer pulverizing member 72 is used to reciprocate the first recovered developer pulverizing member 73 and the second recovered developer pulverizing member 74, the extending portion 73a, 74a or connecting wall surface adhesion prevention parts 73d, 74d, as shown in FIG.

In addition, in the recovered developer conveying device 61 of the first embodiment, as shown in FIGS. 4 and 5 , the pitch corresponding to the axial movement distance of the first helical blade 71 b for one helical rotation and the pitch of the second helical blade 71 c The width of the reciprocating movement of the first recovered developer grinding member 73 is set to be larger than the width of the reciprocating movement of the second recovered developer grinding member 74 . Therefore, the vibration amplitude is set larger on the side of the first recovered developer pulverizing member 73 that tends to drop a large amount of developer corresponding to the recovered developer drop passage 66 formed obliquely downward to facilitate pulverization of the developer by vibration.

In addition, in the recovered developer conveying device 61 of the first embodiment, the first recovered developer pulverizing member 73 and the second recovered developer pulverizing member 74 have long channels extending from the upper end to the lower end of the recovered developer falling passage 66 . The extension parts 73a and 74a generate less sound due to vibration and lower noise than the case where no extension part is provided.

In addition, in the recovered developer conveying device 61 of Embodiment 1, the first recovered developer pulverizing member 73 and the second recovered developer pulverizing member 74 are integrally formed, and compared with the case where they are separately formed, the assembly is easier and can be easily to manufacture. In addition, when the first collected developer crushing member 73 and the second collected developer crushing member 74 vibrate, the vibration is transmitted to the integrally formed wall surface adhesion preventing portion 78, which vibrates to reduce the flow from the collected developer falling passage 66. From the upper part to the central part, the developer adheres to the wall surface. In addition, even if the vibration of the second recovered developer pulverizing member 74 is reduced by the second screw blade 71c with a small pitch, the reciprocating movement or vibration from the first screw blade 71b with a large pitch can be transmitted without attenuation. The vibration of the first recovered developer crushing member 73 is vibrated to maintain the ability to crush the developer.

In addition, in the recovered developer conveying device 61 of Embodiment 1, the non-spiral forming portion 71d is provided at a position corresponding to the recovered developer discharge port 69, compared with the case where the spiral blade is also formed in the non-spiral forming portion 71d, The area of the recovered developer discharge port 69 viewed from the recovered developer falling passage 66 is large. Thereby, it is possible to alleviate the situation where the spiral portion becomes an obstacle and the fallen developer cannot be conveyed to the recovered developer discharge port 69 . Therefore, even if there are medium-sized agglomerates that cannot be pulverized in the developer falling in the recovered developer falling passage 66 , they can be quickly discharged from the recovered developer discharge port 69 .

Example 2

Next, Embodiment 2 of the present invention will be described. In the description of Embodiment 2, constituent elements corresponding to those of Embodiment 1 will be assigned the same reference numerals, and detailed description thereof will be omitted.

This second embodiment differs from the above-mentioned first embodiment in the following points, and has the same configuration as the first embodiment in other respects.

12 is an explanatory diagram of main parts of the image forming apparatus of the second embodiment, and is an explanatory diagram of the separation position corresponding to FIG. 5 of the first embodiment.

13 is an explanatory view of main parts of the image forming apparatus according to the second embodiment, and is an explanatory view of close positions corresponding to FIG. 6 of the first embodiment.

FIG. 14 is an explanatory diagram of main parts of a pulverizing unit of the second embodiment, and is an explanatory diagram corresponding to FIG. 8 of the first embodiment.

In FIGS. 12 to 14, in the developer crushing member 72' of the second embodiment, the first recovered developer crushing member 73' has the same first extension portion 73a, ring portion 73b, first The spiral contact portion 73c, the connecting portion wall surface adhesion prevention portion 73d, and also has: a spiral bridge portion 73e that recovers the developer from the upper end of the connection portion wall surface adhesion prevention portion 73d of the first recovered developer pulverizing member 73'. The conveying member 71 extends axially; the inclined extension portion 73f extends obliquely from the end portion of the aforementioned helical bridging portion 73e toward the rotation shaft 71a; the first shaft contact portion 73g as an example of the first conveying member contact portion, It extends from the end portion of the inclined extension portion 73f so as to cross the rotation shaft 71a, and is in contact with the surface of the rotation shaft 71a without the spiral formation portion 71d.

The second recovered developer crushing member 74' is bilaterally symmetrical to the first recovered developer crushing member 73', and has the same configuration, except for the second extension part 74a, the ring part 74b, the second spiral contact part 74c, and the wall surface of the connecting part. In addition to the adhesion prevention part 74d, it has the helical bridging part 74e, the inclined extension part 74f, and the 2nd shaft contact part 74g which is an example of the 2nd conveyance member contact part.

(Effect of Embodiment 2)

In the recovered developer conveying device 61 of Embodiment 2 having the above-mentioned structure, as in the case of Embodiment 1, the first recovered developer crushing member 73' and the second recovered developer are rotated with the rotation of the recovered developer conveying member 71. The agent crushing members 74' reciprocate in the directions of approaching and separating from each other. At this time, the shaft contact portions 73g and 74g are separated from each other as shown in FIG. 12, or contact each other as shown in FIG. Therefore, it is possible to prevent the developer from adhering to the surface of the rotating shaft 71 a without the aforementioned spiral forming portion 71 d and increasing, thereby clogging the recovered developer discharge port 69 . In addition, when the shaft contact portions 73g, 74g contact or separate from each other, vibrations are generated on the helical bridging portions 73e, 74e or the inclined extending portions 7ef, 74f, and the developer around the connecting portion 68 is swept away to prevent clogging.

(change example)

The embodiments of the present invention have been described in detail above, but the present invention is not limited to the foregoing embodiments, and various changes can be made within the scope of the present invention described in the claims. Modified examples (H01) to (H07) of the present invention are illustrated below.

(H01) In the foregoing embodiments, a copier as an image forming apparatus was exemplified, but it is not limited thereto, and a complex machine provided with facsimile or printing, or both or more of the aforementioned functions may also be used. In addition, an image forming apparatus having four color image holders PRy to PRk, developing devices Gy to Gk, and latent image forming devices LHy to LHk is exemplified, but it is not limited thereto, and is also applicable to a monochrome image forming apparatus or a rotary image forming apparatus. In the image forming apparatus of the rotary type, the image holder and the latent image forming device of the rotary image forming apparatus are one, and the four developing devices are rotated to face the image holder in sequence.

(H02) In the foregoing embodiments, the first recovered developer crushing members 73, 73' and the second recovered developer crushing members 74, 74' are integrally formed. This structure is preferable, but they may be formed separately.

(H03) In the foregoing embodiments, as the developer conveying device, the recovered developer conveying device that conveys waste developer such as deteriorated developer or residual developer was exemplified, but not limited thereto, it is also applicable to the developer replenishing device, This is an example of a developer conveying device, and conveys to replenish new developer.

(H04) In the foregoing embodiments, the shape of the wall surface adhesion preventing portion 78 is not limited to the shape illustrated in the embodiments, and may be changed to any shape, and the wall surface adhesion preventing portion 78 may be omitted.

(H05) In the aforementioned embodiments, the length of the extension parts 73a, 74a or the shape of the ring part 73b or the wall surface adhesion preventing part 73d of the connecting part is preferably the shape shown in the embodiment, but it may also correspond to the design or specification, etc., change arbitrarily. In addition, it is preferable to provide the extension parts 73a, 74a, the annular part 73b, and the connection part wall surface adhesion prevention part 73d, but they may be omitted.

(H06) In the foregoing embodiments, it is preferable to form no spiral forming portion 71d, but it may be omitted.

(H07) In the foregoing embodiments, as an example of the developer conveying member, a conveying member including the rotating shaft 71a, the first helical blade 71b and the second helical blade 71c formed helically on the outer periphery of the rotating shaft 71a was exemplified. , but is not limited to this, and may not be provided with a rotating shaft, and may be formed by using a first helical blade formed by helically winding the wire in a predetermined direction and a helical winding in the opposite direction to the first helical blade. The so-called helical spring-like conveying member of the second helical blade.

Claims (12)

1. a developer carrying device, is characterized in that, has:

The whereabouts path that developer falls;

Developer carrying path, it is connected with aforementioned whereabouts path at delivered inside developer simultaneously;

Reagent delivery component, it is configured in aforementioned developer carrying path, and be rotated and developer in supplying developing agent carrying path, this reagent delivery component has the 1st spire and the 2nd spire to form with the spirally winding of aforementioned the 1st spire opposite direction that form with the spirally winding of prescribed direction;

The 1st crushing part, it is configured in the connecting portion place between aforementioned whereabouts path and aforementioned developer carrying path, and contact with aforementioned the 1st spire, move back and forth corresponding to the rotation of aforementioned reagent delivery component, pulverize the developer at aforementioned connecting portion place;

The 2nd crushing part, it is configured in aforementioned connecting portion place, contacts, corresponding to the rotation of aforementioned reagent delivery component with aforementioned the 2nd spire, aforementioned the 1st crushing part moves back and forth in direction close to each other, that separate with aforementioned the 2nd crushing part, pulverizes the developer at aforementioned connecting portion place;

Inflow entrance, it flows in the path of aforementioned whereabouts developer;

Escape hole, it is configured under the gravity direction of aforementioned inflow entrance, discharges the developer falling in the path of aforementioned whereabouts and the developer of carrying in aforementioned developer carrying path;

The 1st inwall pulverizing portion, it is arranged on aforementioned the 1st crushing part, pulverizes the developer on the internal face that is attached to aforementioned whereabouts path; And

The 2nd inwall pulverizing portion, it is arranged on aforementioned the 2nd crushing part, pulverizes the developer on the internal face that is attached to aforementioned whereabouts path,

A part for aforementioned the 1st crushing part, is approaching under the state of aforementioned the 2nd crushing part most, is positioned at the inner side of the gravity direction top of aforementioned escape hole,

A part for aforementioned the 2nd crushing part, is approaching under the state of aforementioned the 1st crushing part most, is positioned at the inner side of the gravity direction top of aforementioned escape hole.

2. developer carrying device as claimed in claim 1, is characterized in that,

Aforementioned the 1st crushing part and aforementioned the 2nd crushing part under immediate state each other, contact above the gravity direction of aforementioned escape hole.

3. developer carrying device as claimed in claim 1 or 2, is characterized in that,

Aforementioned reagent delivery component is being located between aforementioned the 1st spire and aforementioned the 2nd spire and directly over for the gravity direction of aforementioned escape hole, and the part that does not form spire is set.

4. developer carrying device as claimed in claim 3, is characterized in that, has:

The 1st transfer unit contact site, it is arranged on aforementioned the 1st crushing part, and contacts with the aforementioned reagent delivery component that does not form said spiral portion; And

The 2nd transfer unit contact site, it is arranged on aforementioned the 2nd crushing part, and contacts with the aforementioned reagent delivery component that does not form said spiral portion,

Aforementioned the 1st transfer unit contact site and aforementioned the 2nd transfer unit contact site, follow the movement of aforementioned the 1st crushing part and aforementioned the 2nd crushing part, move back and forth with the state contacting with aforementioned reagent delivery component, pulverize the developer being attached on reagent delivery component.

5. developer carrying device as claimed in claim 1 or 2, is characterized in that,

Aforementioned the 1st crushing part and aforementioned the 2nd crushing part form.

6. developer carrying device as claimed in claim 3, is characterized in that,

In the situation that aforementioned the 1st spire circles along spiral rotary, move axially distance, in situation about circling along spiral rotary from aforementioned the 2nd spire to move axially distance different.

7. an image processing system, is characterized in that, has:

Picture holder;

Developing apparatus, it will be formed on the lip-deep image development of said image holder for can video;

Primary transfer device, its by said image holder surface can video primary transfer to middle transfer body;

Picture holder clearer, it reclaims and is attached to the developer on said image holder surface after primary transfer and said image holder is cleaned;

Final transfer implement, it can finally be transferred on medium by video aforementioned intermediate transfer surface;

Middle transfer body clearer, its recovery is attached to the developer of aforementioned intermediate transfer surface and aforementioned middle transfer body is cleaned;

Whereabouts path, it makes the developer being reclaimed by aforementioned middle transfer body clearer fall and carry;

Developer carrying path, the developer that it is reclaimed by said image holder clearer in delivered inside, is connected with aforementioned whereabouts path simultaneously;

Reagent delivery component, it is configured in aforementioned developer carrying path, and be rotated and developer in supplying developing agent carrying path, this reagent delivery component has the 1st spire and the 2nd spire to form with the spirally winding of aforementioned the 1st spire opposite direction that form with the spirally winding of prescribed direction;

The 1st crushing part, it is configured in the connecting portion place between aforementioned whereabouts path and aforementioned developer carrying path, and contact with aforementioned the 1st spire, move back and forth corresponding to the rotation of aforementioned reagent delivery component, pulverize the developer at aforementioned connecting portion place;

The 2nd crushing part, it is configured in aforementioned connecting portion place, contacts, corresponding to the rotation of aforementioned reagent delivery component with aforementioned the 2nd spire, aforementioned the 1st crushing part moves back and forth in direction close to each other, that separate with aforementioned the 2nd crushing part, pulverizes the developer at aforementioned connecting portion place;

Inflow entrance, it flows in the path of aforementioned whereabouts developer;

Escape hole, it is configured under the gravity direction of aforementioned inflow entrance, discharges the developer falling in the path of aforementioned whereabouts and the developer of carrying in aforementioned developer carrying path;

The 1st inwall pulverizing portion, it is arranged on aforementioned the 1st crushing part, pulverizes the developer on the internal face that is attached to aforementioned whereabouts path; And

The 2nd inwall pulverizing portion, it is arranged on aforementioned the 2nd crushing part, pulverizes the developer on the internal face that is attached to aforementioned whereabouts path,

A part for aforementioned the 1st crushing part, is approaching under the state of aforementioned the 2nd crushing part most, is positioned at the inner side of the gravity direction top of aforementioned escape hole,

A part for aforementioned the 2nd crushing part, is approaching under the state of aforementioned the 1st crushing part most, is positioned at the inner side of the gravity direction top of aforementioned escape hole.

8. image processing system as claimed in claim 7, is characterized in that,

Aforementioned the 1st crushing part and aforementioned the 2nd crushing part under immediate state each other, contact above the gravity direction of aforementioned escape hole.

9. image processing system as claimed in claim 7 or 8, is characterized in that,

Aforementioned reagent delivery component is being located between aforementioned the 1st spire and aforementioned the 2nd spire and directly over for the gravity direction of aforementioned escape hole, and the part that does not form spire is set.

10. image processing system as claimed in claim 9, is characterized in that, has:

The 1st transfer unit contact site, it is arranged on aforementioned the 1st crushing part, and contacts with the aforementioned reagent delivery component that does not form said spiral portion; And

The 2nd transfer unit contact site, it is arranged on aforementioned the 2nd crushing part, and contacts with the aforementioned reagent delivery component that does not form said spiral portion,

Aforementioned the 1st transfer unit contact site and aforementioned the 2nd transfer unit contact site, follow the movement of aforementioned the 1st crushing part and aforementioned the 2nd crushing part, move back and forth with the state contacting with aforementioned reagent delivery component, pulverize the developer being attached on reagent delivery component.

11. image processing systems as claimed in claim 7, is characterized in that,

Aforementioned the 1st crushing part and aforementioned the 2nd crushing part form.

12. image processing systems as claimed in claim 11, is characterized in that,

In the situation that aforementioned the 1st spire circles along spiral rotary, move axially distance, in situation about circling along spiral rotary from aforementioned the 2nd spire to move axially distance different.