KR101212084B1 - Method of applying liquid material and method of assembling developer holding unit - Google Patents

Abstract

The present invention provides a liquid material application method or a method for assembling a developer holder unit which reduces the leakage of the developer upstream of the moving direction of the developer holder surface rather than a portion where the developer removal member and the developer holder contact each other. It aims to do it.

The developer is removed from the portion corresponding to the support member which is fixed to the housing and supports the developer removal member with respect to the first region outside the first edge located at the longitudinal end side of the developer removal member of the developer accommodating portion. The first application process of applying the liquid material by moving the nozzle toward the contact area between the member and the developer holder, and the second area outside the second edge with the developer accommodating portion between the first edge and the second edge. And a second application process of applying a liquid material by moving the nozzle from a portion corresponding to the support member fixed to the housing to support the developer removal member to a portion where the developer removal member and the developer holder come into contact with each other. .

Cleaning device, cleaning frame, felt attachment surface, blade, film member, elastic layer

Description

Liquid material coating method and developer holder unit assembly method {METHOD OF APPLYING LIQUID MATERIAL AND METHOD OF ASSEMBLING DEVELOPER HOLDING UNIT}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid material application method of a liquid material applied by solidification and solidified, or a developer holder unit assembly method of assembling a developer holding unit by applying the liquid material.

The patent document 1 consists of attaching the blade 2 with respect to the cleaner container 1 which accommodates a developer, and is liquid elasto as the substance between the cleaner container 1 and the blade 2 as a real thing. In a toner cartridge formed by applying or injecting an elastomer to seal the gap, a discharge response due to viscosity in the case of applying a liquid elastomer between the gap between the cleaner container 1 and the blade 2 Due to deterioration of properties and the presence of solidified material at the tip of the nozzle (remaining at the time of pre-coating), the coating amount at the starting point and the end point in the coating area is not stabilized. With respect to the problem that a large deviation arises, the method of discharging immediately before application | coating in a place other than an application | coating area is used together, the method of stabilizing the application | coating amount of the said time point and an end point, and the liquid phase of a container. A hole shape is formed in the starting point and the end point of the application or injection region of the elastomer in a larger amount than the intermediate coating amount, and the liquid elastomer coating amount of the starting point and the end point is set to be larger than that of the intermediate region. The method of making is described.

[Patent Document 1] Japanese Patent Publication No. 2002-162820

This invention is made | formed in view of the said situation, The liquid material application | coating method or image development which reduces the leakage of a developer in the moving direction upstream of the said developer holding body surface rather than the site | part which a developer removal member and a developer holding body contact. It is an object to provide a method for assembling a holding body unit.

In the liquid material application method of the present invention for achieving the above object, the first liquid material application method is in contact with each other along a direction crossing the moving direction of the developer holder surface on which the surface is moved, The nozzle is removed while discharging a liquid material from the nozzle which is attached to the housing and has a developer accommodating portion for accommodating the developer removed by the developer removing member. As a liquid material applying method for applying this liquid material by moving relative to the housing,

The part corresponding to the support member which is fixed with respect to the said housing and supports the said developer removal member with respect to the 1st area | region outside the 1st edge located in the longitudinal direction end side of the said developer removal member of the said developer accommodating part. A first application process of applying the liquid material by relatively moving the nozzle toward a portion where the developer removing member and the developer holder contact each other;

The developer from a portion corresponding to a support member that is fixed to the housing and supports the developer removal member with respect to a second region outside the second edge with the developer accommodation portion interposed with the first edge; The nozzle is relatively moved toward a portion where the removal member and the developer holder come into contact with each other, and have a second coating step of applying the liquid material.

The second liquid material application method of the liquid material application method of the present invention for achieving the above object is in contact with the direction crossing the moving direction of the developer holder surface to which the surface is moved, The nozzle is removed while discharging a liquid material from the nozzle which is attached to the housing and has a developer accommodating portion for accommodating the developer removed by the developer removing member. As a liquid material applying method for applying this liquid material by moving relative to the housing,

From the outside of the third edge located at the side where the support member of the developer accommodating portion is disposed, and when the support member is mounted to the housing, the nozzle is positioned with respect to the third region where the support member and the housing face each other. Relatively moving, the third coating step of applying the liquid material,

The developer removal member is fixed to the housing with respect to the first region outside the first edge located at the longitudinal end side of the developer removal member of the developer accommodating portion in the third application process. A first application step of applying the liquid material by relatively moving the nozzle from a portion corresponding to the supporting member to be supported toward a portion where the developer removing member and the developer holder come into contact;

The developer from a portion corresponding to a support member that is fixed to the housing and supports the developer removal member with respect to a second region outside the second edge with the developer accommodation portion interposed with the first edge; The nozzle is relatively moved toward a portion where the removal member and the developer holder come into contact with each other, and have a second coating step of applying the liquid material.

The third liquid material application method of the liquid material application method of the present invention for achieving the above object is in contact with each other along the direction crossing the moving direction of the developer holder surface on which the surface is moved, The nozzle is removed while discharging a liquid material from the nozzle which is attached to the housing and has a developer accommodating portion for accommodating the developer removed by the developer removing member. As a liquid material application method for applying this liquid material by moving relative to the housing,

The part corresponding to the support member which is fixed with respect to the said housing and supports the said developer removal member with respect to the 1st area | region outside the 1st edge located in the longitudinal direction end side of the said developer removal member of the said developer accommodating part. A first application process of applying the liquid material by relatively moving the nozzle toward a portion where the developer removing member and the developer holder contact each other;

From the outside of the 3rd edge located in the side where the support member of the said developer accommodating part is arrange | positioned, and with respect to the 3rd area | region which the said support member and the said housing oppose when the said support member is mounted in the said housing, Relatively moving, the third coating step of applying this liquid material,

A support member fixed to the housing and supporting the developer removing member with respect to the second region outside the second edge with the developer receiving portion interposed with respect to the first edge in succession to the third application process. It is characterized by having a 2nd application | coating process of apply | coating this liquid material by moving the said nozzle relatively from the site | part corresponding to to the site | part which the said developer removal member and the said developer holding body contact | connect.

Here, after applying the liquid material to the first region in the first application process, the first separation process of placing a relative distance between the nozzle and the housing in the gravity direction, and the second application process in the second application process After applying the liquid material to the two regions, it is desirable to have a second spacing process that puts a relative distance between the nozzle and the housing in the gravity direction.

Further, between the first application process and the first separation process, a first stop process for stopping the discharge of the liquid material from the nozzle, and between the second application process and the second separation process, the nozzle It is preferable to have a second stop process for stopping the discharge of the liquid material from the above, and further, while the distance from the nozzle in the direction of gravity between the nozzle and the housing in the first separation process, A first stop process for stopping the discharge of the liquid material and a second stop process for stopping the discharge of the liquid material from the nozzle while keeping a distance in the gravity direction between the nozzle and the housing in the second separation process; Having a two stop process is also a preferred form.

Here, it is preferable that the said liquid material is a thermoplastic elastomer.

Moreover, it is also a preferable aspect that the said thermoplastic elastomer is a hot melt adhesive.

The developer holder unit assembly method of the present invention for achieving the above object is in contact with each other along a direction crossing the moving direction of the developer holder surface on which the surface moves, and the developer on the developer holder surface is removed. And the nozzle is discharged from the nozzle while discharging the liquid material, which is applied in a liquid state and solidified in a housing having a developer accommodating portion for accommodating the developer removed by the developer removal member, from the nozzle. A method of assembling a developer holder unit in which the developer removal member is mounted after applying the liquid material by moving relatively.

The part corresponding to the support member which is fixed with respect to the said housing and supports the said developer removal member with respect to the 1st area | region outside the 1st edge located in the longitudinal direction end side of the said developer removal member of the said developer accommodating part. A first application process of applying the liquid material by relatively moving the nozzle toward a portion where the developer removing member and the developer holder contact each other;

The developer from a portion corresponding to a support member that is fixed to the housing and supports the developer removal member with respect to a second region outside the second edge with the developer accommodation portion interposed with the first edge; A second application process of applying the liquid material by relatively moving the nozzle toward a portion where the removal member and the developer holder contact;

And a developer removal member mounting step of mounting the developer removal member to the housing before the liquid material applied in the first application process and the second application process is solidified,

The ten point average roughness of the surface of the portion of the developer removal member in contact with the liquid material is high relative to the ten point average roughness of the surface of the first region and the surface of the second region.

Here, after applying the liquid material to the first region in the first application process, the first separation process of placing a relative distance between the nozzle and the housing in the gravity direction, and the second application process in the second application process After applying the liquid material to the two regions, it is desirable to have a second spacing process that puts a relative distance between the nozzle and the housing in the direction of gravity.

Further, between the first application process and the first separation process, a first stop process for stopping the discharge of the liquid material from the nozzle, and between the second application process and the second separation process, from the nozzle It is preferable to have a 2nd stop process which stops discharge of the said liquid material of the.

In addition, during the first separation process, while stopping the discharge of the liquid material from the nozzle while the distance in the gravity direction between the nozzle and the housing, and in the second separation process It is also a preferable aspect to have a 2nd stop process which stops discharge of the said liquid material from the said nozzle, while leaving the distance in the gravity direction between the said nozzle and the said housing.

Here, it is preferable that the said liquid material is a thermoplastic elastomer.

Moreover, it is also a preferable aspect that the said thermoplastic elastomer is a hot melt adhesive.

According to the liquid material applying method according to any one of claims 1 to 3, the developer is removed from the site where the developer removing member and the developer holder are in contact when applying the liquid material that is applied and solidified in a liquid state. Leakage of the developer in the moving direction upstream of the surface of the developer holder, as compared with when the nozzle is moved toward the portion corresponding to the support member for supporting the member, compared with the portion where the developer removal member contacts the developer holder. Can be reduced.

According to the liquid material applying method according to claim 4, the liquid phase upstream of the moving direction of the developer holder body is higher than the site where the developer removal member and the developer holder contact with each other in comparison with the case where the present invention is not employed. The shape at the time of increasing the application amount of a material can be adjusted.

The liquid material applying method according to claim 5 or 6 is preferable to prevent toner leakage upstream of the moving direction of the surface of the developer holder, rather than a portion where the developer removal member and the developer holder contact each other. The shape which becomes small toward the developer holder from can be formed.

According to the liquid material applying method according to claim 7, the handling of the liquid material becomes easy.

According to the method for assembling the developer holder unit according to claim 9, the liquid material adheres to the developer removal member and is separated from the housing when the developer removal member is removed from the housing as compared with the case where the present invention is not employed. It can be configured to be easy to do.

According to the method for assembling the developer holder unit according to claim 10, compared with the case where the present invention is not employed, the direction in which the developer removal member and the developer holder come into contact with the moving direction upstream of the developer holder surface. The shape at the time of increasing the application amount of the liquid material to a furnace can be adjusted.

The method of assembling the developer holder unit according to claim 11 or 12, which is preferable to prevent toner leakage upstream of the moving direction of the developer holder surface, rather than a portion where the developer removal member and the developer holder contact each other. And the shape which becomes small from the housing toward the developer holder can be formed.

According to the liquid material application | coating method of Claim 13 or 14, handling of liquid material becomes easy.

EMBODIMENT OF THE INVENTION Below, the Example of this invention is described.

1 is a schematic cross-sectional view of an image forming apparatus.

In the image forming apparatus 1 shown in FIG. 1, external charges are applied to the surface of the photoconductive drum 10, which is an example of a developer holder which is provided with a predetermined charge by the charging roll 11 and rotates in the direction of an arrow A. FIG. The exposure light generated by the exposure machine 12 is irradiated on the basis of the image data transmitted from the toner, and the electrostatic latent image is formed, and the toner accommodated in the developer 13 having the developing roll 131 rotating in the direction of the arrow C. The electrostatic latent image is developed. The developing image obtained by this phenomenon is transferred by the transfer roll 14 rotating in the direction of the arrow D onto the recording paper drawn out from the paper cassette (not shown) and conveyed in the direction of the arrow B, and to the fixing unit 15. By the fixing, the image is formed on the recording sheet. On the other hand, this image forming apparatus 1 is a monochrome image exclusive machine.

1, the cleaning apparatus 2 which contacts the part which finished the image transfer of the photosensitive drum 10 to the recording paper, and removes the residue which remained on the surface of the photosensitive drum 10 is shown.

2 is a partial front view of the cleaning apparatus.

FIG. 2 shows an end portion of the cleaning device 2 when the cleaning device 2 shown in FIG. 1 is viewed beyond the photosensitive drum 10 from the developing device 13 side. Since the cleaning device 2 is symmetrical, only the end portions shown here will be described below.

The cleaning device 2 includes a cleaning mold 21 as an example of a housing, a blade 22 as an example of a developer removing member, a blade support plate 23 as an example of a support member, a film member 24 and a felt member 25. ).

The blade 22 removes residues remaining on the surface of the photosensitive drum 10 that the tip 221 contacts.

The blade support plate 23 is a metal plate material which supports the blade 22, and is fixed to the cleaning frame 21 by the fixing screw 230. As shown in FIG.

The cleaning mold 21 is an example of a developer accommodating portion, and has a recess space for receiving a residue removed from the surface of the photosensitive drum 10, and the edge of the inlet 210a (see FIG. 5) of the recess space. The main body portion 210, to which the blade support plate 23 supporting the blades 22 is screwed, and a holding portion 211 rotatably holding both ends of the photosensitive drum 10 are provided. On the other hand, in addition to the boss 2101 used for positioning the blade supporting plate 23, the main body 210 has a position for positioning the cleaning frame 21 at a predetermined position in the image forming apparatus 1. A boss 2102 to be used is also provided. In addition, below, the expression which assembles the photosensitive drum 10 to the holding part 211 of the cleaning frame 21 is used for convenience. In addition, although detailed description is mentioned later, the screw fixing of the blade support plate 23 which supports the blade 22 to the cleaning frame 21 is the material 20 apply | coated to the edge of the inlet 210a of the cleaning frame 21. (Refer FIG. 7), and the residue accommodated in the recess space is prevented from leaking out between the clearances of the cleaning frame 21 and the blade support plate 23 by this.

The felt member 25 has the felt layer 251 which is a surface, and the elastic layer 252 (refer FIG. 8, 9) which supports this felt layer 251, The elastic layer 252 has the cleaning frame 21 It is set to the thickness which is slightly pressed and crushed by the photosensitive drum 10 of the state hold | maintained by the holding part 211 of (). Thereby, the felt layer 251 is in close contact with the photosensitive drum 10, and the leakage of the residue is prevented.

Moreover, this felt member 25 has the convex part 250 which protruded to the center side of the cleaning apparatus 2. In FIG. 2, the side surface of the convex part 250 and the side of the cleaning blade side of the parts other than the convex part 250 of the felt member 25 are added to the edge of the cleaning blade 22 is shown. In addition, although the felt layer 251 was used for the contact part with the photosensitive drum 10 here, as a material used for the contact part with the photosensitive drum 10, if it is a material with a small coefficient of friction, it will be limited to a felt material. no. In addition, the detail of the convex part 250 of the felt member 25 is mentioned later.

The film member 24 is a sheet-like thing made of polyurethane, and the tip 22 is contacted with the photosensitive drum 10 in the state hold | maintained at the holding part 211 of the cleaning frame 21, and the blade 22 Leakage of residues from the opposite side of is prevented.

3 is a view showing a blade support plate for supporting the blade.

FIG. 3 shows a blade support plate 23 for supporting the blades 22 before being screwed to the cleaning mold 21 of the cleaning device 2, where the screw support plate 23 is screwed to the cleaning mold 21. It is shown with the surface on the side opposite to the cleaning mold 21 facing up. 3 shows a state in which a hole 23a through which the fixing screw 230 shown in FIG. 2 penetrates, and a hole 23b through which the boss 2101 of the cleaning mold 21 penetrates are provided. .

In a state where the screw is fixed to the cleaning mold 21 of the blade support plate 23, the average of 10 points of the edge portion of the inlet 210a of the cleaning mold 21 is on the surface on the side opposite to the cleaning mold 21. A rough surface portion 231 having a ten-point average roughness Rz higher than the roughness Rz is provided, and this rough surface portion 231 is shown by an oblique line in FIG. 3. The roughened portion 231 shown in diagonal lines in FIG. 3 is a material applied to the edge of the inlet 210a of the cleaning mold 21 when the blade support plate 23 is screwed into the cleaning mold 21 ( 20) (see FIG. 7).

4 is a cross-sectional view of the blade support plate shown in FIG.

In FIG. 4, the case where A-A 'cross section of the blade support plate 23 shown in FIG. 3 is seen from the side of the hole 23a, 23b shown in FIG. Thus, the ten point average roughness Rz of the roughening part 231 which the material 20 contacts the blade support plate 23 is higher than the ten point average roughness Rz of the edge part of the inlet 210a of the cleaning frame 21. Then, by contacting the rough surface portion 231 and the material 20 before the material 20 is solidified, the used cleaning device 2 is disassembled to replace the blade support plate 23 with the cleaning frame 21. ), The seal 20 is configured to be easily attached to the blade support plate 23 instead of the cleaning mold 21.

5 is a view showing a cleaning mold.

FIG. 5 shows the blade support plate 23, the felt member 25, and the cleaning mold 21 in a state before the film member 24 is attached to the main body portion 210, where the residue containing the residue is contained. The state in which the inlet 210a of the recess space is exposed is shown. In Fig. 5, reference numerals A to D are attached to the respective edge portions forming the edges of the inlet portion 210a of the recess space, but these are attached for the convenience of explanation, which will be described below, It is not actually attached. Moreover, the real 20 is apply | coated with respect to the edge part with which the code | symbol A to the code | symbol C was attached | subjected from code | symbol A to code | symbol D.

Here, the edge part B which is a 1st area | region in this embodiment and the edge part C which is a 2nd area | region in this embodiment are the axis | shafts of the photosensitive drum 10 substantially orthogonal to the moving direction of the photosensitive drum 10 surface. Direction, as well as the region along the portion forming the edge forming the inlet 210a of the recess opening, as well as the portion forming the edge as in this embodiment, and the photosensitive drum 10 of the blade 22. The edge part A which is the area | region between the edge part in an axial direction, and is the 3rd area | region in this embodiment is the edge which forms the inlet 210a of the recess opening in the side in which the blade support plate 23 is arrange | positioned. The blade support plate 23 and the cleaning mold 21 are located on the outer side with respect to the concave space as well as the region according to the portion where the cross section is formed. Pointing to the facing area, the edge portion D, as well as the area along the portion forming the edge forming the inlet 210a of the recess opening at the side where the film member 12 is disposed, as well as the corresponding edge as in the present embodiment The area | region between the site | part which forms the and the film member 12 is pointed out.

Here, the assembly method of the cleaning apparatus 2 is demonstrated easily, referring FIGS. 5-9.

6 is a view showing the flow of the assembling method of the cleaning apparatus.

In Fig. 6, as step S1, an edge portion A in which a seal member 20 which is applied in a liquid phase and solidifies and fills the gap between the members forms an edge of the opening 210a of the cleaning mold 21 shown in Fig. 5. , Edge portion B, and edge portion C are applied.

Next, as step S2, the blade support plate 23 which supports the blade 22 is screwed and fixed to the cleaning die 21. At this stage, the edge portion A of the edge of the inlet 210a, and each portion of the edge portion B and the edge portion C, are covered with the blade support plate 23 supporting the blade 22, so that the inlet 210a is provided. Is narrowed compared with the state shown in FIG.

7 is a view showing a narrowed entrance of the cleaning mold. In FIG. 7, the edge of the part of the inlet 210a covered by the member is shown by a dashed-dotted line, and the part of the material 20 which is applied to the edge part is covered by the member and is not visible. The real 20 is shown by the dotted line.

FIG. 7 shows a state in which the inlet 210a shown in FIG. 3 is covered with the blade 22 and narrowed.

7, the blade support plate 23 which supports the blade 22 among the materials 20 applied to the edge part A, the edge part B, and the edge part C which comprise the edge of the entrance part 210a is shown in FIG. The state in which the seal | sticker part 20 of the covered part is pressed and crushed by the fixation to the cleaning mold 21 of the blade support plate 23 which supports the blade 22 is shown. Here, the description returns to FIG. 6 and continues.

Next, as a step S3, the felt member 25 is attached to the felt attaching surface 2103 (see FIG. 5). In addition, the film member 24 is attached to the edge part D as step S4. Here, the lower part of the film member 24 is attached to the edge part D by the double-sided tape which is not shown in figure. Further, the edge portion A, the edge portion B, and the edge portion C are on the same plane, whereas the edge portion D is on the plane that intersects the plane. In addition, as a step S5, the photosensitive drum 10 is assembled to the holding part 211 of the cleaning mold 21.

8 is a view showing a state where the photosensitive drum is assembled to the holding portion of the cleaning mold. In addition, in FIG. 8, illustration of the film member 24 is abbreviate | omitted in order to avoid the complexity.

In FIG. 8, the case where the edge part B is seen from the arrow X direction in FIG. 7 is shown, Here, the state which the felt member 25 is attached to the felt attachment surface 2103 by the double-sided tape 26 is shown. It is. As described above, since the elastic layer 252 of the felt member 25 is somewhat compressed when the photosensitive drum 10 is assembled to the holding portion 211 of the cleaning mold 21, the felt layer 251 is a photosensitive member. It comes in close contact with the drum 10. In this case, the material 20 applied to the edge portion B is also compressed between the double-sided tape 26 and the edge portion B. In addition, in FIG. 8, the convex part 250 of the felt member 25 demonstrated in FIG. 2 has shown the state which protruded toward the center side of the cleaning apparatus 2 rather than the felt attachment surface 2103. As shown in FIG.

9 is a cross-sectional view of the cleaning member in which the photosensitive drum is assembled.

In FIG. 9, the cross section shown by the dashed-dotted line in FIG. 8 is shown in the arrow Y direction, and the tip 241 of the film member 24 attached by the double-sided tape 26 to the edge part D is felt. The shape rolled up to the member 25 side is shown.

In addition, FIG. 9 shows a state in which the material 20 shown by the diagonal lines fills the gap between the cleaning mold 21 and the member fixed or attached to the cleaning mold 21 without a gap.

The above is the approximate flow of the assembling method of the cleaning apparatus 2.

Here, in this cleaning apparatus 2, the tip 221 of the cleaning blade 22 is brought into contact with the photosensitive drum 10, and the residue recovered by friction from the surface of the photosensitive drum 10 is not leaked out of the cleaning frame. In order to prevent this, the application is made to the application of the material 20 to the edge portion A, the edge portion B, and the edge portion C constituting the edge of the inlet 210a. Below, the application content of the material 20 to the edge part A, the edge part B, and the edge part C shown by step S1 of FIG. 6 is demonstrated in detail.

10 is a view showing a coating method of the actual material. The application method of the reality shown below is a first embodiment of the liquid material application method of the present invention.

10 shows a simplified cleaning mold 21 and a real discharging device 300 for discharging a material 20 composed of a thermoplastic elastomer which is an example of a liquid material applied and solidified in a liquid state from a nozzle 301. Is shown. This thermoplastic elastomer functions as a so-called hot melt adhesive, which is liquid in the heated state and solidifies by lowering temperature. Examples of other liquid materials include polystyrene-based materials, polyurethane-based materials, and polyurea-based materials.

10 shows the movement trajectory of the nozzle 301 according to the application of the seal 20 to the cleaning mold 21. In addition, illustration of the entrance 210a shown in FIG. 5 is abbreviate | omitted in FIG. In addition, in FIG. 10, the surface containing the edge part A, the edge part B, and the edge part C among the edges of the inlet 210a of the cleaning container 21 is a plane parallel to an XY plane in the XYZ axis | shaft shown in FIG. Continue the explanation.

In FIG. 10A, the nozzle 301 extends from the first time point S1 to the first end point D1, that is, parallel to the Y axis in FIG. 10, to the edge portion B of the edge of the inlet 210a shown in FIG. 5. The state where the material 20 is applied by moving the tip of the head) is shown.

In FIG. 10B, after the application of the material 20 to the edge portion B is finished, the nozzle 301 maintains a predetermined angle θ (see FIG. 11B) with respect to the Z axis. The state which moved on the surface parallel to YZ plane, and moved to the 1st waypoint T1 away from a 1st end point is shown.

In FIG. 10C, after the distal end of the nozzle 301 spaced apart from the first end point D1 to the first waypoint T1 moves to the second waypoint T2 in parallel with the Y axis, and further parallel with the Z axis. The state moved to 2 time point S2 is shown.

FIG. 11: is a figure which shows the state which looked at the movement of the nozzle shown to (c) of FIG. 10 (a) in FIG. 10A in the minus direction with respect to the X-axis shown in FIG.

FIG. 11A illustrates a state in which the tip of the nozzle 301 is moved in parallel with the Y axis from the first time point S1 to the first end point D1. In FIG. 11B, the tip of the nozzle 301 is shown in FIG. The state which moved from the 1st end point D1 to the 1st waypoint T1 is shown, maintaining the predetermined angle (theta) on the surface parallel to a YZ plane with respect to a Z axis | shaft. FIG. 11C shows a state where the tip of the nozzle 301 has moved to the second waypoint T2 in parallel with the Y axis, and in FIG. 11D, the tip of the nozzle 301 has a second waypoint. The state which moved from T2 to 2nd time point S2 is shown. Returning to FIG. 10, the explanation is continued.

In FIG. 10D, as shown in FIG. 11D, the tip of the nozzle 301 moved to the second time point S2 is moved to the edge portion A by moving in parallel with the X axis thereafter. After the application of (20), the state where the application of the material 20 to the edge portion C via the third waypoint T3 is moved toward the second end point D2, that is, parallel to the Y axis in FIG. Is shown. Thus, in the assembly of the cleaning apparatus 2, the application of the material 20 to the edge portion B and the edge portion C of the edges of the inlet 210a is together from the edge portion A side toward the edge portion D side (Fig. The tip of the nozzle 301 is moved from the upper side to the lower side at 10). This is because the amount of discharge at the start of discharge and the end of discharge of the material 20 from the nozzle 301 is different. Therefore, the application of the material to these edge portions B and C is applied from one edge portion A side. When the tip of the nozzle 301 is moved toward the edge portion D side, and the other end is moved from the edge portion D side toward the edge portion A side, the edge portion B and the edge portion C This is to prevent the actual coating amount from changing.

In the assembly of the cleaning apparatus 2, the application of the material 20 to the edge portion C is performed without stopping the discharge of the material once following the application of the material of the edge portion A. FIG. For this reason, the amount of distribution of the material at the boundary between the edge part A and the edge part C, as compared with the case where the application of the material to each of the edge part A and the edge part C is divided into two by sandwiching one end of the actual discharge therebetween. The change of is suppressed.

In FIG. 10 (e), after application | coating of the material 20 to the edge part C is complete | finished, from the 2nd end point D2, maintaining the predetermined angle (theta) with respect to a Z axis on the surface parallel to a YZ plane, The state where the nozzle 301 has moved to the 4th way point T4 is shown. Thus, in the assembly of the cleaning apparatus 2, the edge part A which is a waypoint corresponding to these end points from the 1st end point D1 and the 2nd end point D2 which are the end points of the actual application | coating to each of the edge part A and the edge part C, respectively. The tip of the nozzle 301 is spaced apart from the left and right symmetrical first waypoint T1 and the fourth waypoint T4 as seen from above. Further, since the discharge of the material is stopped at these first end points D1 and the second end point D2, i.e., at positions symmetrically viewed from the edge portion A, the amount of application of the material at the vicinity of the first end point D1 and near the second end point D2. Are substantially the same, and the bank of the material at the first end point D1 and the bank at the second end point D2 become smaller in shape across the photosensitive drum side at the cleaning mold side, respectively, as viewed from the edge portion A. .

12 is a view showing a flow of control on actual discharge and position of the actual discharge device.

In FIG. 12, the actual discharge apparatus 300 which starts and stops discharge of the substance from the nozzle 301 in response to an instruction | indication, the cleaning container holder which hold | maintains the cleaning mold 21 in a predetermined attitude | position, and actual discharge A routine flow chart is shown which is executed in an automatic application device having a moving arm which holds the device 300 and moves this application device 300 in accordance with the input three-dimensional coordinate values. Further, with respect to the cleaning mold 21 held by the cleaning mold holder, the first time point S1, the first end point D1, the first waypoint T1, the second waypoint T2, the second timepoint S2, the third waypoint T3, The three-dimensional coordinate position relative to the tip home position of this nozzle 301 of each of the second end point D2 and the fourth waypoint T4 is described as already registered. Continue.

In step S11 shown in FIG. 12, the start signal of the actual coating operation is received, and the tip of the nozzle 301 of the actual discharge device 300 is moved from the home position, not shown, to the first time point S1. In step S12, it waits for reaching the 1st time point S1 of the front-end | tip of the nozzle 301, instruct | indicates the actual discharge apparatus 300 to start discharging a real, and from the 1st time point S1 of the front-end | tip of the nozzle 301 The movement toward the first end point D1 is indicated. In step S13, when the tip of the nozzle 301 reaches the first end point D1, the discharge stop of the actual 20 is immediately instructed. In this way, by immediately discharging the material 20 immediately after reaching the first end point D1, since the material in the nozzle is discharged even after the discharge stop of the material 20 is instructed, the seal member is removed at the first end point D1. Thickening In step S14, after moving the front-end | tip of the nozzle 301 which reached | attained the 1st end point D1 from the 1st end point D1 to the 1st waypoint T1, the 2nd time point S2 is passed through the 2nd waypoint from the 1st waypoint T1. Move towards In step S15, it waits for reaching the 2nd time point S2 of the tip of the nozzle 301, instruct | indicates the actual discharge apparatus 300 to start discharging a real thing, and is made from the 2nd time point S2 of the tip of the nozzle 301, and is made. 3 Instructs the movement toward the second end point D2 via the waypoint T3. In step S16, when the tip of the nozzle 301 reaches the second end point D2, the discharge stop of the real 20 is immediately instructed. In step S17, the front-end | tip of the nozzle 301 which reached | attained the 2nd end point D2 is moved toward from the 2nd end point D2 toward the 4th way point T4.

Next, a second embodiment of the liquid material applying method of the present invention will be described.

The difference between the actual application method of the second embodiment and the actual application method of the first embodiment is the timing of discharge stop of the actual in the application of the actual to the edge portion B and the edge portion C, and therefore only the advantages will be described below. .

FIG. 13 is a diagram showing the flow of control over actual discharge and position of the actual discharge device. FIG.

In step S21 shown in FIG. 13, the start signal of the actual application | coating operation | movement is received, and the front-end | tip of the nozzle 301 of the actual discharge apparatus 300 is moved to the 1st viewpoint S1 from the home position which is not shown in figure. In step S22, it waits for reaching the 1st time point S1 of the front-end | tip of the nozzle 301, instruct | indicates the actual discharge apparatus 300 to start discharging a real, and from the 1st time point S1 of the front-end | tip of the nozzle 301 The movement toward the first end point D1 is indicated. In step S23, movement to the 2nd time point S2 via the 1st end point D1 and the 2nd waypoint T2 of the front-end | tip of the nozzle 301 which reached | attained the 1st end point D1 is instruct | indicated. In step S24, the discharging stop of the actual body is instructed after a predetermined time T has passed from the end of the nozzle 301 via the first end point D1 before reaching the first waypoint T1. In this way, the bank of the seal member at the first end point D1 becomes large by stopping the discharge of the material after the first end point D1.

Here, FIG. 14 is a diagram showing a bank of the material at the first end point in the actual application method of the second embodiment.

Fig. 14 shows a view corresponding to Fig. 11B showing the bank of the material at the first end point in the actual application method of the first embodiment, which is shown in Fig. 11B. A bank larger than the bank of 20 is shown. As a result, the filling of the material 20 around the convex portion 250 of the film member 24 or the felt member 25 becomes more dense. Returning to FIG. 13, the description is continued.

In step S25, it waits for reaching the 2nd time point S2 of the tip of the nozzle 301, instruct | indicates the actual discharge apparatus 300 to start discharging a real thing, and is made from the 2nd time point S2 of the tip of the nozzle 301. 3 Instructs the movement toward the second end point D2 via the waypoint T3. In step S26, the movement which performed the 4th via point T4 from the 2nd end point D2 of the front-end | tip of the nozzle 301 which reached the 2nd end point D2 is instruct | indicated. In step S27, before the tip of the nozzle 301 reaches the fourth passing point T4, the discharge stop of the actual 20 is instructed after a predetermined time T has passed after the tip of the nozzle 301 passes through the second end point D2. .

As described above, in the actual coating method of the second embodiment, the discharge of the material 20 is stopped after the first end point D1 and the second end point D2 are separated from each other so that the first end point D1 and the second end point D2 are stopped. While the bank of the seal member 20 becomes the same application amount and is intentionally large, the bank of the seal at the first end point D1 and the bank of the seal at the second end point D2 are respectively cleaned when viewed from the edge portion A. It becomes a shape becoming small gradually from the frame side to the photosensitive drum side.

In addition, in the embodiment described above, since it is preferable to apply the material 20 continuously to the continuous application area, the application of the material 20 to the edge portion A and the edge portion C is carried out. Although an example in which the discharge is continuously performed without interposing one end of the discharge has been described above, the application of the material 20 to the edge portion A and the edge portion C may be performed by dividing the discharge of the actual discharge into two portions with one end of the actual discharge. The basic effect of the present invention is not reduced.

In addition, although the material 20 which consists of thermoplastic elastomers with respect to the edge part A, the edge part B, and the edge part C is used, the present invention also uses the material which consists of urethane etc. with respect to the edge part C. The basic effect of is not reduced.

1 is a schematic cross-sectional view of an image forming apparatus.

2 is a partial front view of the cleaning apparatus.

3 is a view showing a blade support plate supporting the blade.

4 is a cross-sectional view of the blade support plate shown in FIG.

5 shows a cleaning mold.

6 is a view showing a flow of a method of assembling a cleaning device.

7 shows a narrowed opening of the cleaning mold.

8 is a view showing a state in which a photosensitive drum is assembled to a holding part of a cleaning mold;

9 is a sectional view of a cleaning device in which a photosensitive drum is assembled;

10 is a view showing a coating method of a seal.

FIG. 11 is a view showing a state in which the movement of the nozzle shown in FIGS. 10A to 10C is viewed in the negative direction with respect to the X axis shown in FIG.

12 is a view showing a flow of control on actual discharge and position of a real discharge device.

Fig. 13 is a diagram showing the flow of control over actual discharge and position of the actual discharge device.

Fig. 14 is a diagram showing a bank of seal at the first end point in the seal application method of the second embodiment.

Description of the Related Art [0002]

1: image forming apparatus

2: cleaning device

20: seal ash

21: cleaning frame

210: main body

210a: entrance

211: holding part

2103: felt attachment surface

22: blade

221: tip

23: blade support plate

230: set screw

231: rough surface portion

24: film member

241 tip

25: felt member

250: convex

251: felt layer

252: elastic layer

Claims (14)

A developer removal member for contacting along a direction crossing the moving direction of the developer holder surface and removing the developer on the developer holder surface is mounted, and accommodates the developer removed by the developer removal member. A liquid material application method for applying the liquid material by moving the nozzle relative to the housing while discharging a liquid material applied in a liquid state and solidifying to a housing having a developer accommodating portion from the nozzle. The developer removal member is fixed to the housing with respect to the first region outside the first edge of the developer accommodation portion located at the longitudinal end side of the developer removal member of the developer accommodation portion. A first application process of applying the liquid material by relatively moving the nozzle from a portion corresponding to the support member to support the portion toward the contact portion of the developer removal member and the developer holder; The development is fixed to the housing with respect to a second area outside the second edge of the developer accommodating portion, which is positioned with the developer accommodating portion interposed in the longitudinal direction of the developer removing member with respect to the first edge. Having a second application process for applying the liquid material by relatively moving the nozzle from a portion corresponding to the support member for supporting the first removal member toward the contact portion of the developer removal member and the developer holder; A liquid material application method characterized by the above-mentioned. A developer removal member for contacting along a direction crossing the moving direction of the developer holder surface and removing the developer on the developer holder surface is mounted, and accommodates the developer removed by the developer removal member. A liquid material application method for applying the liquid material by moving the nozzle relative to the housing while discharging a liquid material applied in a liquid state to a housing having a developer accommodating part and solidifying from the nozzle, Outside of the third edge of the developer accommodating portion located on the side where the support member of the developer accommodating portion is disposed, and in a third region in which the support member and the housing face each other when the support member is mounted to the housing. A third application process of applying the liquid material by relatively moving the nozzle, The first region outside the first edge of the developer accommodating portion positioned on the longitudinal end side of the developer removing member of the developer accommodating portion continuously to the third coating process, and is fixed relative to the housing and A first application process of applying the liquid material by relatively moving the nozzle from a portion corresponding to the support member supporting the developer removal member toward a portion where the developer removal member and the developer holder come into contact; The development is fixed to the housing with respect to a second area outside the second edge of the developer accommodating portion, which is positioned with the developer accommodating portion interposed in the longitudinal direction of the developer removing member with respect to the first edge. Having a second application process for applying the liquid material by relatively moving the nozzle from a portion corresponding to the support member for supporting the first removal member toward the contact portion of the developer removal member and the developer holder; A liquid material application method characterized by the above-mentioned. A developer removal member for contacting along a direction crossing the moving direction of the developer holder surface and removing the developer on the developer holder surface is mounted, and accommodates the developer removed by the developer removal member. A liquid material application method for applying the liquid material by moving the nozzle relative to the housing while discharging a liquid material applied in a liquid state and solidifying to a housing having a developer accommodating portion from the nozzle, A support that is fixed to the housing and supports the developer removing member with respect to a first region outside the first edge of the developer receiving portion located on the longitudinal end side of the developer removing member of the developer receiving portion. A first application step of applying the liquid material by relatively moving the nozzle from a portion corresponding to the member toward a portion where the developer removing member and the developer holder contact each other; Outside of the third edge of the developer accommodating portion located on the side where the support member of the developer accommodating portion is disposed, and in a third region in which the support member and the housing face each other when the support member is mounted to the housing. A third application process of applying the liquid material by relatively moving the nozzle, With respect to the second area outside of the second edge of the developer accommodating portion, which is positioned with the developer accommodating portion interposed in the longitudinal direction of the developer removing member with respect to the first edge in the third application process, The liquid material is applied by relatively moving the nozzle from the portion corresponding to the support member fixed to the housing to support the developer removal member toward the contact portion of the developer removal member and the developer holder. It has a 2nd application | coating process to carry out, The liquid material application method characterized by the above-mentioned. 4. The method according to any one of claims 1 to 3, After applying the liquid material to the first region in the first coating step, a first separation step of placing a relative distance between the nozzle and the housing in a gravity direction; And after applying the liquid material to the second region in the second coating process, a second separation step of placing a relative distance between the nozzle and the housing in a gravity direction. 5. The method of claim 4, A first stop process for stopping the discharging of the liquid material from the nozzle between the first application process and the first separation process, And a second stop process for stopping the discharge of the liquid material from the nozzle between the second application process and the second separation process. 5. The method of claim 4, A first stop process for stopping the discharge of the liquid material from the nozzle while keeping a distance in the gravity direction between the nozzle and the housing in the first separation process; And a second stop process for stopping the discharge of the liquid material from the nozzle while keeping a distance in the gravity direction between the nozzle and the housing in the second separation process. . 4. The method according to any one of claims 1 to 3, The liquid material application method, characterized in that the liquid material is a thermoplastic elastomer (elastomer). The method of claim 7, wherein And the thermoplastic elastomer is a hot melt adhesive. A liquid phase is placed in a housing having a developer accommodating portion contacting along a direction crossing the moving direction of the developer holder surface and accommodating the developer removed by the developer removal member for removing the developer on the developer holder surface. A method of assembling a developer holder unit for mounting the developer removing member after applying the liquid material by moving the nozzle relative to the housing while discharging the liquid material applied and solidified from the nozzle. A support that is fixed to the housing and supports the developer removing member with respect to a first region outside the first edge of the developer receiving portion located on the longitudinal end side of the developer removing member of the developer receiving portion. A first application step of applying the liquid material by relatively moving the nozzle from a portion corresponding to the member toward a portion where the developer removing member and the developer holder contact each other; The development is fixed to the housing with respect to a second area outside the second edge of the developer accommodating portion, which is positioned with the developer accommodating portion interposed in the longitudinal direction of the developer removing member with respect to the first edge. A second application step of applying the liquid material by relatively moving the nozzle from a portion corresponding to the support member for supporting the second removal member toward a portion where the developer removal member and the developer holder contact each other; And a developer removal member mounting step of mounting the developer removal member to the housing before the liquid material applied in the first application process and the second application process is solidified, The ten point average roughness of the surface of the portion of the developer removal member in contact with the liquid material is high relative to the ten point average roughness of the surface of the first region and the surface of the second region. How to assemble a sieve unit. The method of claim 9, A first separation process of applying a liquid material to the first region in the first coating process and then placing a relative distance between the nozzle and the housing in a gravity direction; And after applying the liquid material to the second region in the second coating process, having a second separation process in which a relative distance between the nozzle and the housing in a gravity direction is provided. . 11. The method of claim 10, A first stop process for stopping the discharge of the liquid material from the nozzle between the first application process and the first separation process, And a second stop process for stopping the discharge of the liquid material from the nozzle between the second application process and the second separation process. 11. The method of claim 10, A first stop process for stopping the discharge of the liquid material from the nozzle while keeping a distance in the gravity direction between the nozzle and the housing in the first separation process; And a second stop process for stopping the discharge of the liquid material from the nozzle while keeping a distance in the gravity direction between the nozzle and the housing in the second separation process. How to assemble the unit. The method according to any one of claims 9 to 12, And the liquid material is a thermoplastic elastomer. The method of claim 13, And the thermoplastic elastomer is a hot melt adhesive.

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