JP2004020877A - Cleaning tool, cleaning method, developing device, image forming device, and consumables used in image forming device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleaning tool which can easily and surely remove deposits sticking to the inside surface at the front end of a planar member, such as a developer regulating member, without entailing the cost increase and upsizing of a device body. <P>SOLUTION: A gripper 200A of a cleaning tool body is gripped and a free end 200B is advanced into a doctor gap G between a first developing roller 51 and a doctor blade 57. The cleaning tool 200 is lightly pulled to the direction where the tool is pulled from the doctor gap G in the state of unbending the free end of a touching section 200C to the area facing the inside surface of the front end of the doctor blade 57, by which the touching section 200C is touched on the inside surface on the front end of the doctor blade 57. The cleaning tool body is moved along the doctor gap G in this state and the deposits, such as the paper dust and toner lumps, sticking to the inside surface of the front end are removed to the inside surface at the front end of the doctor blade 57 by the touching section 200C. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a cleaning jig. More specifically, for example, the present invention relates to a cleaning jig for cleaning an inner surface of a developer regulating member disposed to face a developer carrier of a developing device used in an image forming apparatus such as a copying machine, a facsimile, a printer, and the like.
[0002]
[Prior art]
Japanese Patent Application Laid-Open No. 2001-175078 discloses a "development device" and Japanese Patent Application Laid-Open No. 5-150638 discloses a "printing device" for cleaning the foreign substances (foreign matter) adhering to the developer regulating member using a cleaning member. Devices "are known. A cleaning member in the developing device or the printing device is provided in the developer case so as to be interposed between the developer carrier and the developer regulating member and to be movable in the longitudinal direction of the developer regulating member. I have. By moving the cleaning member in the longitudinal direction of the developer regulating member, it becomes possible to remove foreign matters such as paper dust and toner lumps adhering to the front end surface of the developer regulating member.
[0003]
[Problems to be solved by the invention]
However, the above-mentioned conventional cleaning member is assembled to a main body of a developing device or a printing device. Therefore, a developing device or a printing apparatus using the cleaning member requires a moving unit for moving the cleaning member, and it is necessary to secure a space for installing the moving unit and a standby space for the cleaning member. For this reason, when such a cleaning member is used, there is a problem that the cost and size of the developing device and the printing device are increased.
[0004]
Further, the cleaning member in the "developing device" of JP-A-2001-175078 and the "printing device" of JP-A-5-150638 is formed so as to clean only the end face of the leading end of the developer regulating member. ing. For this reason, this cleaning member has a problem that it is not possible to remove foreign matter adhering to the inner surface of the distal end of the developer regulating member, that is, the surface on the back side of the developer regulating member.
[0005]
The present invention has been made in view of the above problems. The purpose is to easily and reliably remove the adhering matter adhering to the inner surface of the distal end portion of the plate-shaped member such as the developer regulating member without increasing the cost and size of the apparatus main body. It is to provide a cleaning jig.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, an adhering substance attached to an inner surface of a distal end portion of a plate-like member whose distal end is arranged close to a facing member so as to form a predetermined gap is removed. A cleaning jig for cleaning the inner surface of the distal end portion of the plate-shaped member, the holding jig for holding the cleaning jig main body, and a shape capable of entering the inner surface side of the plate-shaped member through the gap. A free end portion, and a contact portion formed in a shape capable of abutting against the inner surface of the distal end portion of the plate-shaped member in a state where the free end portion is advanced into the inner surface side of the plate-shaped member through the gap. Which is characterized by having
In this cleaning jig, by holding the grip portion and allowing the free end portion to enter the gap between the opposing member and the plate member, the contact portion is positioned on the inner surface of the distal end portion of the plate member. Contact. By moving the cleaning tool body along the gap in a state where the contact portion is in contact with the inner surface of the distal end portion of the plate-like member, the attached matter adhered to the inner surface of the distal end portion of the plate-like member. Is removed.
An invention according to claim 2 is a method for cleaning the inner surface of the distal end of the plate-like member using the cleaning jig according to claim 1, wherein the gripping portion is gripped and a gap between the opposed member and the plate-like member is provided. The free end is made to enter, and with the free end having entered the inner surface of the plate-like member, the contact portion is brought into contact with the inner surface of the distal end of the plate-like member, and the corresponding contact is made. The cleaning tool main body is moved along the gap while being kept in contact with the inner surface of the distal end portion of the plate-shaped member.
According to a third aspect of the present invention, in the cleaning jig of the first aspect, at least the free end portion is formed of a film-shaped elastic body, and the tip of the elastic body is bent into an L-shape to form the contact portion. It is characterized by the following.
According to a fourth aspect of the present invention, in the cleaning jig of the first aspect, at least the free end is formed of a film-shaped elastic body, and a U-shaped cut is formed at a tip of the elastic body to form the contact portion. Is formed.
According to a fifth aspect of the present invention, in the cleaning jig of the fourth aspect, the abutting portion is provided in a state where the free end portion enters the inner surface side of the plate member through a gap between the opposed member and the plate member. Is formed so as to face the inner surface of the plate-shaped member.
According to a sixth aspect of the present invention, in the cleaning jig of the fourth or fifth aspect, an end of the cut, which is a base of the contact portion, is formed in an R shape.
According to a seventh aspect of the present invention, in the cleaning jig of the fourth, fifth, or sixth aspect, the contact portion is configured such that a portion serving as a free end of the contact portion forms a shorter side of a pair of parallel opposite sides of a trapezoid. A portion serving as a side edge of the portion is formed in an inclined shape. According to an eighth aspect of the present invention, in the cleaning jig of the first, third, fourth, fifth, sixth or seventh aspect, at least a part of the cleaning jig main body is formed of an opaque body. .
According to a ninth aspect of the present invention, the development is performed by a developer carrier that carries and moves the developer, and a plate-shaped member whose tip is arranged close to the developer carrier so as to form a predetermined gap with the developer carrier. A developer regulating means for regulating the developer carried by the developer carrier and removing the developer attached to the inner surface of the distal end of the plate member of the developer regulating means. When the cleaning jig according to claim 4, 5, 6, or 7 is used as a cleaning jig for cleaning an inner surface of a distal end portion of the plate-like member, a free end of the cleaning jig is connected to the developer carrier and the developer carrier. In the process of entering the gap between the developer regulating means and the plate member, the free end is prevented from advancing and the free end is curved, and the free end of the contact portion of the cleaning jig is removed. The developer regulating means has a wall which bends at a position facing the inner surface of the tip end of the plate-shaped member. And it is characterized in Rukoto.
The invention according to claim 10 is an image carrier, a latent image forming means for forming a latent image on the image carrier, and a developing means for developing the latent image to form a visible image on the image carrier. The cleaning jig according to any one of claims 1, 3, 4, 5, 6, 7 and 8 is detachably attached to the image forming apparatus main body.
An invention according to claim 11 is an image carrier, a latent image forming means for forming a latent image on the image carrier, and a developing device for developing the latent image to form a visible image on the image carrier. The cleaning jig according to claim 1, 3, 4, 5, 6, 7, or 8 is detachably attached to a part of the consumable. It is characterized by the following.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an image forming apparatus as a cleaning target using the cleaning jig of the present invention will be described. FIG. 1 shows an example of a laser copying machine as the image forming apparatus. In FIG. 1, a drum-shaped image carrier 12 is provided in a copying machine main body 10. Around the image carrier 12, image forming devices such as a charging device 13, a developing device 14, a transfer / transport device 15, a cleaning device 16, and a charge removing device 17 are provided.
A laser writing device 18 is provided above these imaging devices. A fixing device 25 is disposed on the left side of the cleaning device 16 in the drawing.
An original reading device 30 is provided above the copying machine main body 10. An automatic document feeder 41 is mounted on the copier main body so as to open and close so as to cover the contact glass 40 provided on the upper surface thereof. On the other hand, a duplex unit 35 is disposed below the copying machine body 10.
The copying machine main body 10 is placed on a paper feed table 43. In the paper feed table 43, a plurality of paper feed cassettes 44 are provided in multiple stages. Each paper feed cassette 44 is provided with a paper feed roller 45 corresponding thereto. Each paper feed roller 45 conveys the sheet fed from the corresponding paper feed cassette 44 to a conveyance path 46.
[0008]
Next, the copying operation of the laser copying machine will be described. In FIG. 1, a copy document is set on the automatic document feeder 41 or on the contact glass 40. After the setting, when a start switch (not shown) is pressed, image information of the set document is read by the document reading device 30 in pixel units.
In response to this document reading operation, the sheet in the paper feed cassette 44 selected in advance is conveyed to the conveyance path 46 by the rotation of the corresponding paper feed roller 45. The sheet conveyed to the conveyance path 46 passes through the paper supply path 36, is hit against the registration rollers 48, and is temporarily stopped. The temporarily stopped sheet is sent below the image carrier 12 by rotating the registration roller 48 at a predetermined timing in accordance with the rotation of the image carrier 12.
[0009]
Further, the image carrier 12 rotates in a predetermined direction in response to the document reading operation. As the image carrier 12 rotates, first, the surface of the image carrier 12 is uniformly charged by the charging device 13. Next, the laser writing device 18 irradiates the surface of the image carrier 12 with laser light L corresponding to the image information of the document read by the document reading device 30. As a result, an electrostatic latent image corresponding to the document image is formed on the surface of the image carrier 12. This electrostatic latent image is converted into a visible image (toner image) by the toner in the developer supplied from the developing device 14.
The toner image formed on the image carrier is transferred by the transfer / transport device 15 onto a sheet fed below the image carrier 12 by the rotation of the registration roller 48. In the toner image transfer step, the toner remaining on the surface of the image carrier 13 without being transferred onto the sheet is removed from the surface of the image carrier 13 by the cleaning device 16. Further, the charge remaining on the surface of the image carrier 13 after the transfer step is discharged by the discharging device 17.
[0010]
The sheet on which the toner image has been transferred in the transfer step is conveyed to the fixing device 25 by the transfer / conveyance device 15. Then, the toner image transferred in the transfer process is fixed on the sheet by the fixing device 25. The sheet on which the toner image has been fixed is discharged onto a tray (not shown) outside the apparatus through a paper discharge path 38. Here, when a toner image is also formed on the back surface of the sheet on which the toner image has been fixed, the sheet on which the toner image has been formed on one side is fed to the duplex unit 35 through the reversing path 39. The sheet sent to the double-sided unit 35 is turned upside down, sent to the registration roller 48, and temporarily stopped. The sheet whose front and back are reversed is discharged onto a tray outside the machine through the paper discharge path 38 after the toner image is transferred and fixed to the back surface in the same manner as when copying on one side.
[0011]
Next, the developing device 14 will be described. FIG. 2 shows an example of the configuration of the developing device 14. 2, the developing device 14 includes a developing tank 50 and a developing hopper 60. In a developing case 59 of the developing tank 50, a first developing roller 51 and a second developing roller 52 as a developer carrier are provided. Further, a paddle wheel 53, a stirring roller 54, a transport screw 55, a separator 56, and the like are provided. Further, the developing device 14 is provided with a doctor blade 57 made of a plate-like member as a developer regulating member so as to face the peripheral surface of the first developing roller 51. In the developing case 59, a two-component developer including a carrier and a toner is accommodated. On the other hand, in the developing hopper 60, a toner supply member 61, a supply control plate 62, an agitator 63 and the like are provided. The developing hopper 60 contains toner for replenishment.
[0012]
In FIG. 2, the developer in the developing case 59 is agitated by the rotation of the agitating roller 54 and frictionally charged, and then carried on the surfaces of the first developing roller 51 and the second developing roller 52 by the rotation of the paddle wheel 53. Is done. The developer carried on the surfaces of the first developing roller 51 and the second developing roller 52 passes through a gap (doctor gap) formed between the developing blade 51 and the doctor blade 57, thereby forming a thin layer having a predetermined thickness. Be transformed into The doctor gap of the developing device 14 is set to about 0.6 mm. The electrostatic latent image formed on the surface of the image carrier 12 is formed into a toner image by the toner in the developer supplied from the developing device 14 by the toner in the thinned developer. You.
[0013]
The developing device 14 is provided with a toner scattering prevention device 70 (see FIG. 1). The toner scattering prevention device 70 includes an exhaust unit 72 connected to the developing device 14 by an intake tube 71. The scattered toner is sucked by the exhaust unit 72. The scattered toner sucked by the exhaust unit 72 is stored in a toner storage unit 74 provided in the copying machine main body 10 through an exhaust tube 73.
[0014]
As shown in FIG. 3, a suction duct 75 is attached to the tip of the exhaust tube 71. The suction duct 75 is formed in an elongated rectangular shape, and a connection port 76 for connecting one end of the intake tube 71 is provided at the center of the upper surface. An opening 77 is provided on the lower surface of the suction duct 75, as shown in FIG.
[0015]
By the way, in the developing device 14 having the above-described configuration, the doctor gap between the first developing roller 51 and the doctor blade 57 may be clogged with paper dust. At the portion of the doctor gap where paper dust is clogged, the thickness of the thin developer layer formed on the first developing roller 51 changes from the normal state shown in FIG. 5A to the state shown in FIG. As shown, it may decrease. As described above, when the thickness of the thin developer layer is reduced, the developing ability is reduced, and the image density of the toner image may be partially reduced.
This problem can be solved by using a cleaning jig according to each embodiment described below.
[0016]
(Embodiment 1)
The cleaning jig according to the first embodiment has the following features. FIG. 6 shows an example of the cleaning jig 100 according to the first embodiment. The cleaning jig 100 has a gripper 100A, a free end 100B, and an abutment 100C. The free end 100B of the cleaning jig body is formed of a film-like elastic body. The cleaning jig body may be made of any material as long as at least its free end portion 100B is a film-like elastic body. For example, a resin film can be used. Further, the thickness of the cleaning jig body is formed smaller than the size of the doctor gap. Here, this cleaning jig body was made of PET (polyethylene terephthalate) having a thickness of 0.1 mm. As shown in FIG. 6, the contact portion 100C is formed by bending the tip of the cleaning jig body into an L-shape.
The cleaning jig 100 is used by an operator as follows. First, the operator grips the gripper 100A of the cleaning jig body. Then, the gripped free end 100B of the cleaning jig main body is advanced into the doctor gap G between the first developing roller 51 and the doctor blade 57 as shown in FIG. Thereby, the contact portion 100C of the cleaning jig main body contacts the inner surface of the distal end portion of the doctor blade 57. In this manner, the operator moves the cleaning tool main body along the doctor gap G in a state where the contact portion 100C is in contact with the inner surface of the distal end portion of the doctor blade 57. As a result, extraneous matter such as paper dust and toner lump adhering to the inner surface of the distal end portion of the doctor blade 57 is removed.
[0017]
(Embodiment 2)
By the way, when the cleaning jig 100 according to the first embodiment is used, a force is applied in a direction in which the contact portion 100C is no longer bent. When such a force is applied, the bending angle of the contact portion 100C increases, and the contact portion 100C does not contact the inner surface of the distal end portion of the doctor blade 57. For this reason, it has become clear that it is difficult for the cleaning jig 100 to reliably clean the inner surface of the distal end portion of the doctor blade 57. Here, if the cleaning jig body is formed of a thin metal plate, it is possible to make it difficult to return the bending of the contact portion 100C, but it becomes very difficult to insert the contact portion 100C into the doctor gap G.
The cleaning jig according to the second embodiment solves such a problem of the cleaning jig 100 according to the first embodiment. FIG. 8A shows a plan view of a cleaning jig 200 according to the second embodiment, and FIG. 8B shows a side view. The cleaning jig 200 has a grip portion 200A, a free end portion 200B, and a contact portion 200C. The free end 200B of the cleaning jig main body is made of PET (polyethylene terephthalate) having a thickness of 0.1 mm, similarly to the cleaning jig 100 according to the first embodiment. As shown in FIG. 8A, the cleaning jig 200 has an abutting portion 200C formed by forming a U-shaped cut 200D at the tip of the cleaning jig main body.
Here, the free end of the contact portion 200C faces the inner surface of the distal end of the doctor blade 57 with the free end 200B of the cleaning jig body entering the doctor gap G. Is formed.
The end of the cut 200D, which is the base of the contact portion 200C of the cleaning jig 200, is formed in an R shape.
Further, the side edge of the contact portion 200C is inclined so that the portion serving as the free end of the contact portion 200C of the cleaning jig 200 forms the shorter side of the pair of parallel opposing sides of the trapezoid. Is formed.
[0018]
The cleaning jig 200 is used by an operator as follows. As shown in FIG. 9, the operator holds the holding portion 200A of the cleaning jig main body and causes the free end portion 200B to enter the doctor gap G between the first developing roller 51 and the doctor blade 57. In this way, when the free end 200B of the cleaning jig 200 is further advanced into the doctor gap G, the tip of the free end 200B is moved to the wall 14A provided on the developing device 14 as shown in FIG. Abut. As a result, the advance of the free end 200B is prevented by the wall 14A, and the free end 100B is curved. Then, the free end of the contact portion 200C of the cleaning jig 200 is bent and raised at a portion facing the inner surface of the distal end portion of the doctor blade 57. In this manner, the cleaning jig 200 is gently pulled in a direction in which the cleaning jig 200 is pulled out from the doctor gap G while the free end of the contact portion 200C is bent and raised to a portion facing the inner surface of the distal end portion of the doctor blade 57.
Thereby, the contact portion 200C of the cleaning jig body comes into contact with the inner surface of the distal end portion of the doctor blade 57 as shown in FIG. As described above, the operator moves the cleaning tool main body along the doctor gap G in a state where the contact portion 200C is kept in contact with the inner surface of the distal end portion of the doctor blade 57. As a result, extraneous matter such as paper dust and toner lump adhering to the inner surface of the distal end portion of the doctor blade 57 is removed. In the developing device 14 shown in FIG. 2, a part of the member forming the Q-shade of the scattered toner by the toner scatter prevention device 70 is configured to function as the wall portion 14A.
[0019]
(Configuration Example 1)
FIG. 12 shows a cleaning jig 300 having another configuration example. The cleaning jig 300 has a free end 300B formed by stamping a contact portion 300C. The end of the cut 300D of the contact part 300C formed by this punching is provided with a round hole for the purpose of reinforcement.
[0020]
(Configuration Example 2)
FIG. 13 shows a cleaning jig 400 having still another configuration example. The cleaning jig 400 has a contact portion 400C formed by punching a free end portion 400B. The end of the cut 300D of the contact part 400C formed by this punching is formed in an R shape for the purpose of reinforcement.
[0021]
(Configuration example 3)
FIG. 14 shows a cleaning jig 500 of still another configuration example. This cleaning jig 500 is formed by implanting a brush-like contact portion 500C at its free end portion 500B. The free end 500B of the cleaning jig body is formed to be smaller than the doctor gap G. The cleaning jig 500 inserts the free end portion 500B into the doctor gap G with the contact portion 500C parallel to the doctor gap G. Thereafter, the gripper 500A is rotated about 90 degrees, and the contact part 500C is used so as to contact the inner surface of the distal end of the doctor blade 57.
[0022]
(Configuration Example 4)
FIGS. 15A and 15B show a cleaning jig 600 having still another configuration example. The cleaning jig 600 has a contact portion 600C formed by punching a rectangular opening 600D at a free end portion 600B. In the cleaning jig 600, first, the free end portion 600B is inserted into the doctor gap G. Thereafter, as shown in FIG. 15B, the free end portion 600B is bent, and the contact portion 600C is bent. The bent and raised contact portion 600C is used so as to contact the inner surface of the distal end portion of the doctor blade 57.
[0023]
(Configuration Example 5)
FIG. 16 shows a cleaning jig 700 of still another configuration example. This cleaning jig 700 is formed by implanting a brush-like contact portion 700C at its free end 700B. The contact portion 700C of the cleaning jig body is formed of an extremely flexible brush that is pushed down when the free end 700B is inserted into the doctor gap G. The cleaning jig 700 inserts the free end 700B into the doctor gap G. Thus, the contact portion 700C that has been pushed down when passing through the doctor gap G rises up again and contacts the inner surface of the distal end portion of the doctor blade 57.
[0024]
(Configuration Example 6)
FIGS. 17A and 17B show a cleaning jig 800 having still another configuration example. This cleaning jig 800 has a cut portion 800D having a width b formed in its free end portion 800B to form a contact portion 800C. The constriction dimension a of the free end portion 800B of the cleaning jig body is formed to be smaller than the doctor gap G. The cleaning jig 800 inserts the free end portion 800B into the doctor gap G with the contact portion 800C parallel to the doctor gap G. Thereafter, as shown in FIG. 17B, the free end portion 800B is rotated by about 90 degrees, and the contact portion 800C is used so as to contact the inner surface of the distal end portion of the doctor blade 57.
[0025]
Here, in the cleaning device in each of the above-described embodiments and configuration examples, it is preferable that at least a part of the cleaning jig main body is formed of an opaque body.
[0026]
In the cleaning jig 100 according to the first embodiment, since the film-shaped elastic body can be formed by bending, the cleaning jig 100 can be configured at low cost. Further, since there is no need to attach a cleaning member to the developing device 14, the developing device main body can be configured inexpensively and compactly.
Further, in the cleaning jig 200 according to the second embodiment, the contact portion 200 </ b> C reliably comes into contact with the inner surface of the distal end portion of the doctor blade 57. As a result, it is possible to reliably remove adhering substances such as paper dust and toner clumps adhering to the inner surface of the distal end of the doctor blade 57.
The end of the cut 200D, which is the base of the contact part 200C of the cleaning jig 200, is formed in an R shape. This makes it possible to provide a cleaning jig in which the end of the break 200D that is easily damaged is difficult to be broken.
Further, the cleaning jig 200 is configured such that a portion serving as a side edge of the contact portion 200C is inclined such that a portion serving as a free end of the contact portion 200C forms a short side of a pair of parallel opposing sides of a trapezoid. It is formed in a shaped shape. This allows the cleaning jig body to rotate in a parallel plane, thereby preventing the abutment portion 200C from being caught when the cleaning jig 200 is pulled out.
In addition, by forming at least a part of the cleaning jig body with an opaque body, the cleaning jig can be made prominent and hardly lost.
Further, by detachably attaching the cleaning jig to the image forming apparatus main body, it is not necessary for a serviceman to carry the cleaning jig, and the cleaning jig can be hardly lost.
The cleaning jig may be detachably attached to a part of consumables such as a toner cartridge used in the image forming apparatus. This facilitates the above-described cleaning operation when exchanging consumables, and promotes regular maintenance.
[0027]
【The invention's effect】
According to the present invention, the present invention easily and reliably removes the adhering matter adhering to the inner surface of the distal end portion of a plate-like member such as a developer regulating member without increasing the cost and size of the apparatus main body. There is an excellent effect that can be.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of an image forming apparatus to which the present invention is applied.
FIG. 2 is a schematic configuration diagram of a developing device in the image forming apparatus.
FIG. 3 is a perspective view showing a suction duct provided in the developing device.
FIG. 4 is a perspective view showing an opening of the suction duct.
FIG. 5A is a schematic diagram illustrating a state in which a thin developer layer having a normal thickness is formed on a first developing roller of the developing device.
(B) is a schematic diagram showing a state of formation of the developer thin layer when paper powder is clogged in a doctor gap between a first developing roller and a doctor blade of the developing device.
FIG. 6 is a schematic perspective view of a cleaning jig according to the first embodiment of the present invention.
FIG. 7 is a schematic view showing a state where a free end of the cleaning jig according to the first embodiment is inserted into the doctor gap.
FIG. 8A is a plan view of a cleaning jig according to a second embodiment of the present invention.
(B) is a side view of this cleaning jig.
(C) is a perspective view of this cleaning jig.
FIG. 9 is a schematic perspective view showing a state where a free end of the cleaning jig according to the second embodiment is inserted into the doctor gap.
FIG. 10 is a schematic diagram showing a state in which a tip of a free end of the cleaning jig according to the second embodiment is in contact with a wall of the developing device.
FIG. 11 is a schematic diagram showing a state in which the contact portion of the cleaning jig according to the second embodiment is brought into contact with the inner surface of the distal end portion of the doctor blade.
FIG. 12 is a schematic perspective view of a cleaning jig of Configuration Example 1.
FIG. 13 is a schematic perspective view of a cleaning jig of Configuration Example 2.
FIG. 14 is a schematic perspective view of a cleaning jig of Configuration Example 3.
FIG. 15A is a schematic perspective view when the cleaning jig of Configuration Example 4 is not used.
(B) is a schematic perspective view at the time of using the cleaning jig of the example 4 of a structure.
FIG. 16 is a schematic perspective view of a cleaning jig of Configuration Example 5.
FIG. 17A is a schematic perspective view when the cleaning jig of Configuration Example 6 is not used.
(B) is a schematic perspective view at the time of using the cleaning jig of the example 6 of a structure.
[Explanation of symbols]
10 Copier body
12 Image carrier
14 Developing device
14A wall
51 first developing roller
57 Doctor Blade
100 Cleaning jig according to Embodiment 1
100A Grasping part of cleaning jig according to Embodiment 1
100B Free end of cleaning jig according to Embodiment 1
100C Contact portion of cleaning jig according to Embodiment 1
200 Cleaning jig according to Embodiment 2
200A Grasping part of cleaning jig according to Embodiment 2
200B Free end of cleaning jig according to Embodiment 2
200C Contact portion of cleaning jig according to Embodiment 2
200D Break of cleaning jig according to Embodiment 2
300 Cleaning Jig of Configuration Example 1
400 Cleaning Jig of Configuration Example 2
500 Cleaning Jig of Configuration Example 3
600 Cleaning Jig of Configuration Example 4
700 Cleaning Jig of Configuration Example 5
800 Cleaning jig of Configuration example 6
G doctor gap

Claims (11)

Cleaning for removing adhering matter adhering to the inner surface of the distal end portion of the plate-shaped member whose distal end is arranged close to the opposing member so as to form a predetermined gap, and cleaning the inner surface of the distal end portion of the plate-shaped member Jig,
A gripper for gripping the cleaning jig body,
A free end formed into a shape that can enter the inner surface side of the plate member through the gap,
A contact portion formed in a shape capable of contacting the inner surface of the distal end portion of the plate-shaped member in a state where the free end portion enters the inner surface side of the plate-shaped member through the gap. And cleaning jig. A method for cleaning the inner surface of the distal end portion of the plate-shaped member using the cleaning jig according to claim 1, wherein the free end portion is inserted into a gap between the opposed member and the plate-shaped member by gripping the grip portion. When the free end has entered the inner surface of the plate member, the contact portion is brought into contact with the inner surface of the distal end portion of the plate member, and the corresponding contact portion is positioned at the inner surface of the distal end of the plate member. A cleaning method wherein the cleaning tool main body is moved along the gap while being kept in contact with the cleaning tool. The cleaning jig according to claim 1,
A cleaning jig, wherein at least the free end is formed of a film-like elastic body, and the tip of the elastic body is bent into an L-shape to form the contact portion. The cleaning jig according to claim 1,
A cleaning jig, wherein at least the free end is formed of a film-like elastic body, and a U-shaped cut is formed at a tip of the elastic body to form the contact portion. In the cleaning jig according to claim 4,
In a state in which the free end portion has entered the inner surface side of the plate-shaped member through the gap between the opposed member and the plate-shaped member, a portion serving as the free end of the contact portion is formed on the inner surface of the plate-shaped member. A cleaning jig characterized by being formed to face each other. The cleaning jig according to claim 4 or 5,
A cleaning jig, wherein an end of the cut as a root of the contact portion is formed in an R shape. The cleaning jig according to claim 4, 5 or 6,
The side edge portion of the contact portion is formed in an inclined shape so that the portion serving as the free end of the contact portion forms the short side of the pair of parallel opposing sides of the trapezoid. Cleaning jig. The cleaning jig according to claim 1, 3, 4, 5, 6, or 7,
A cleaning jig, wherein at least a part of the cleaning jig body is formed of an opaque body. A developer carrier that carries and moves the developer,
A developer regulating means for regulating the developer carried and moved by the developer carrier by a plate-shaped member whose tip is arranged closely so as to form a predetermined gap with respect to the developer carrier. Developing device having
8. The cleaning jig according to claim 4, 5 or 6, wherein the adhering substance adhering to the inner surface of the distal end of the plate member of the developer regulating means is removed and the inner surface of the distal end of the plate member is cleaned. When using a cleaning jig,
In the process of causing the free end of the cleaning jig to enter the gap between the developer carrier and the plate member of the developer regulating means, the free end is prevented from advancing and the free end is prevented. Curved,
A developing device having a wall portion which bends a free end of an abutting portion of the cleaning jig to a portion opposed to an inner surface of a front end portion of a plate member of the developer regulating means. An image carrier, a latent image forming unit for forming a latent image on the image carrier, and an image forming apparatus having a developing unit for developing the latent image to form a visible image on the image carrier;
An image forming apparatus, wherein the cleaning jig according to claim 1, 3, 4, 5, 6, 7, or 8 is detachably attached to the image forming apparatus main body. Image forming apparatus having an image carrier, a latent image forming unit for forming a latent image on the image carrier, and a developing unit for developing the latent image to form a visible image on the image carrier Consumables used in
9. A consumable for an image forming apparatus, wherein the cleaning jig according to claim 1, 3, 4, 5, 6, 7, or 8 is detachably attached to a part of the consumable.

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