JP2003005605A - Cleaning device and image forming apparatus provided with cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaning device forming an image of high quality by surely eliminating residue toner attached to an image carrier after a transfer process, provided with a long service life, with superior durability in an image carrier with low cost and an image forming apparatus provided with the cleaning device. SOLUTION: In the image forming apparatus, an image carrier held to be able to be rotated, a cleaning roll 2 eliminating the residue toner attached on the image carrier while being abutted to the image carrier held to be able to be rotated, a lubricant coating means 3 coating lubricant S to the cleaning roll and a cleaning roll blade member 4 eliminating the toner attached to the cleaning roll coated with the lubricant S by the lubricant coating means are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device and an image forming apparatus equipped with the cleaning device. More specifically, the formed toner image is transferred to a transfer member and then attached to an image carrier. The present invention relates to a cleaning device that removes residual toner, and an image forming apparatus such as a copying machine, a facsimile machine, a printer, or a complex machine thereof that uses the electrophotographic method to form an image by using the cleaning device.

[0002]

2. Description of the Related Art A so-called electrophotographic image forming apparatus,
For example, an optical image of a document is projected on the surface of a drum-shaped photoreceptor of a charged image carrier to form an electrostatic latent image on the drum-shaped photoreceptor of the image carrier, and toner of the developer is used to form an electrostatic latent image. A transferable visible toner image is formed on the drum-shaped photoreceptor.
The toner image of the visible image is transferred onto the transfer paper surface of the transfer target, and the transferred toner image on the transfer paper surface of the transfer target is fixed and discharged outside the machine to obtain a copy. The image forming apparatus requires a cleaning device for removing the toner remaining on the drum-shaped photoreceptor of the image carrier after the transfer process and repeatedly using it for image formation. As a cleaning device in this type of image forming apparatus, a cleaning blade made of an elastic material such as rubber is widely used because of its simple structure and excellent toner removing performance. As a cleaning device,
When the toner is removed from the image carrier, the cleaning blade prevents the transfer residual toner from slipping through by an elastic cleaning blade that is brought into contact with a high pressure,
By rotating the brush roller that is in contact with the solid lubricant, the lubricant on the photosensitive drum of the image carrier on which the lubricant is applied suppresses the squeaking of the elastic cleaning blade, and on the drum-shaped photosensitive member of the image carrier. It is also known to prevent the adhesion of the toner and the external additive to the toner (JP-A-11-28).
8194). However, in recent years, as a photoreceptor for an image carrier, the manufacturing cost is low, environmental pollution is low,
Organic photoconductors (OPCs) are used for the reason that it is possible to design a photoconductor relatively freely.

The organic photoconductor (OPC) has excellent characteristics, but since it is made of an organic material, it has a low surface hardness, is weak against a mechanical load in an electrostatic process, and is mechanically damaged. Is likely to occur, and when a cleaning blade is used, the edge portion is pressed with a strong force against the organic photoconductor (OPC) of the image bearing member, so the photoconductor film of the organic photoconductor (OPC) of the image bearing member is pressed. It was worn away and was inferior in durability. When the image carrier is an intermediate transfer belt, it is usually an elastic body made of an elastic material. It is very difficult to scrape off the toner from these elastic bodies with a cleaning blade or the like. In particular, when spherical toner is used, the friction between the intermediate transfer belt and the cleaning blade is large, so the load on the intermediate transfer belt increases and the rotation of the intermediate transfer belt stops. Alternatively, even when the intermediate transfer belt rotates, so-called “chatter” or “squeal” occurs, and the cleaning blade cannot sufficiently scrape off the toner remaining on the surface of the intermediate transfer belt. Therefore, as other means, many cleaning devices using a cleaning brush or a cleaning roller have been proposed.

A configuration using a metal roller as a cleaning roller is known. That is, the negatively charged toner image formed on the photosensitive drum is transferred to the recording paper conveyed on the transfer belt. The transfer belt rotates, and the cleaner that conveys the recording paper carrying the toner image on the portion around the support shaft is a metal cleaner roller to which -600 (V) is applied. +1000
It is known that negatively charged toner is removed by a metal cleaner roller to which (V) is applied, and the toner attached to each cleaner roller is scraped off by a cleaning blade (see JP-A-6-161288). . However, these are the same for the cleaner roller on the downstream side as on the upstream side.
Reverse charge is applied to the toner. For this reason, the toner has the same polarity as the cleaner roller and cannot be cleaned.

A structure in which a metal roller and an elastic roller are combined is also known. That is, a cleaner roller, which is a metal roller that maintains a small gap with the photosensitive drum, and a cleaner roller, which is an elastic roller that is pressed against the photosensitive drum, are used. The cleaner roller, which is a metal roller,
A voltage having the opposite polarity to the charging of the toner is applied to attract the toner. The cleaner roller, which is an elastic roller, removes deposits other than toner by electric field force and mechanical shearing force. It is also known to press a blade for scraping off the toner and adhering substances on the surface of each cleaner roller (Japanese Patent Laid-Open No. 7-31935).
(See publication No. 6). However, since the cleaner roller, which is a metal roller, faces the photosensitive drum via the gap, the toner cannot be sufficiently removed. On the other hand, the cleaner roller, which is an elastic roller on the downstream side, cannot guarantee high accuracy compared with metal, and further, the resistance value changes largely due to moisture absorption and is expensive. Further, in the conventional configuration using the cleaning brush, the performance of the cleaning brush deteriorates with time even if the cleaning performance is initially excellent. That is, while the toner adhering to and remaining on the image carrier after the transfer step is being removed, the toner gradually accumulates in the cleaning brush and becomes clogged.
The outer diameter of the cleaning brush becomes smaller. In the cleaning brush in such a state, the removal performance for removing the toner adhering and remaining on the image carrier after the transfer process is lost, and the cleaning brush cannot function as a cleaning member. Therefore, the conventional cleaning device and the image forming apparatus equipped with the cleaning device are insufficient in toner removal even if the toner remaining on the image carrier after the transfer process is removed.
Since the abrasion resistance is low, the life is short, the durability is lost due to the image carrier being scraped, the cleaning cost is high, and the quality of the formed image is deteriorated.

[0006]

A conventional cleaning device and an image forming apparatus equipped with the cleaning device have a function of removing the toner remaining on the surface of the image carrier after the transfer process. There is a problem that the removal is insufficient, the wear resistance is low, the life is short, the durability is lost due to the image carrier being scraped, the cleaning quality occurs at high cost, and the image quality formed is also deteriorated. Had occurred. Then, the subject of this invention is solving such a problem. That is, a cleaning device and a cleaning device for forming a high-quality image at a low cost with a long life and excellent durability of the image carrier by surely removing the toner remaining on the image carrier after the transfer process. An object of the present invention is to provide an image forming apparatus including the above.

[0007]

In order to achieve the above object, the present invention according to claim 1 removes the toner remaining on the image carrier after transferring the formed toner image to the transfer medium. In the cleaning device, a cleaning roller that rotatably holds the image carrier and a toner that adheres and remains on the image carrier is abutted on the image carrier and rotatably held and removed. And a cleaning roller blade member for removing the toner adhering to the cleaning roller coated with the lubricant by the lubricant coating means and the cleaning roller blade member for cleaning the cleaning roller. It is a characteristic. A second aspect of the present invention is characterized in that, in the cleaning device according to the first aspect, the image carrier is a cleaning device made of an organic photoconductor. A third aspect of the present invention is characterized in that, in the cleaning device according to the first or second aspect, the image carrier is a cleaning device that is a drum-shaped photoconductor. A fourth aspect of the present invention is characterized in that, in the cleaning device according to the first or second aspect, the image carrier is a cleaning device which is a belt-shaped intermediate transfer belt. The present invention according to claim 5 relates to claims 1, 2, and 3.
Alternatively, in the cleaning device described in the paragraph 4, the main feature is that the cleaning roller is a cleaning device that rotates in a direction opposite to the rotation direction of the image carrier. According to a sixth aspect of the present invention, in the cleaning device according to the first, second, third, fourth or fifth aspect, the cleaning roller comprises an elastic conductive layer in which conductive fine particles are dispersed in an elastic material centering on a cored bar. The main feature is that it is a cleaning device. The present invention according to claim 7 relates to claims 1, 2, 3, 4, and 5.
The cleaning device according to the sixth aspect is mainly characterized in that the cleaning roller is a cleaning device to which a voltage is applied by a power source.

The present invention according to claim 8 relates to claim 1, 2, 3,
In the cleaning device described in 4, 5, 6 or 7,
The main feature of the cleaning roller is that it is a cleaning device that applies a voltage of 300 (V) to 500 (V) from a power source to the cored bar. The present invention according to claim 9 is the cleaning device according to any one of claims 1, 2, 3, 4, 5, 6, 7 or 8, wherein the cleaning roller is a cleaning device including a medium resistance layer. And The present invention according to claim 10 relates to claim 1, 2, 3, 4,
The cleaning device described in 5, 6, 7, 8 or 9 is characterized in that the cleaning roller is a cleaning device including a surface protective layer. Claim 11
The present invention is characterized in that, in the cleaning device according to any one of claims 1 to 10, the lubricant applying means is a cleaning device that applies the lubricant to the image bearing member. The present invention according to claim 12 relates to claims 1 to 1.
In the cleaning device according to any one of 1,
The main feature of the lubricant applying means is that the cleaning device is composed of an image carrier and a brush roller that applies a lubricant by rubbing against the cleaning roller. According to a thirteenth aspect of the present invention, in the cleaning device according to the twelfth aspect,
The main feature of the brush roller is that it is a cleaning device arranged downstream of the cleaning roller in the rotational direction of the image carrier. According to a fourteenth aspect of the present invention, in the cleaning device according to the thirteenth aspect, the brush roller has a brush bristle length of 0.2 (mm) to 20.0.
The main feature is that the cleaning device is (mm).

The present invention according to claim 15 relates to claims 1 to 14.
In the cleaning device according to any one of items 1 to 3, the cleaning roller blade member is mainly characterized by being a cleaning device made of a polyurethane material.
The sixteenth aspect of the present invention is characterized in that, in the cleaning device according to any one of the first to fifteenth aspects, the toner is a dry spherical toner. The present invention according to claim 17 is the cleaning device according to any one of claims 1 to 16, wherein the toner contains at least modified polyester as a toner binder and finely disperses a wax therein. Is the main feature.
The present invention of claim 18 is a cleaning device according to any one of claims 1 to 17, characterized in that the toner is a cleaning device having a circularity of 0.98 or more. The present invention according to claim 19 is an image forming apparatus which forms an image by removing a toner remaining on an image carrier after transferring a toner image formed by using an electrophotographic method to a transfer target. An image carrier movably held, a charging unit that charges the image carrier, a latent image forming unit that forms an electrostatic latent image on the image carrier charged by the charging unit, and the latent image A developing unit that attaches toner to the electrostatic latent image formed by the forming unit to visualize the toner image, a transfer unit that transfers the toner image visualized by the developing unit to a transfer target, and the transfer unit. An image formed by an image forming unit, comprising: the cleaning device according to any one of claims 1 to 18 for removing the toner remaining on the image carrier after the toner image is transferred to the transfer target. The most important feature is that it is a forming device . Claim 20
The present invention is characterized in that, in the image forming apparatus according to the nineteenth aspect, the image forming apparatus includes at least two image forming units and forms a color image.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, a cleaning device 0 that removes the toner remaining after adhering to the image carrier after transferring the formed toner image to the transfer target is an image carrier rotatably held in the direction of arrow A in the figure. The toner (t) remaining on the drum-shaped photoreceptor 1a of the body 1 and the drum-shaped photoreceptor 1a of the image carrier 1 is brought into contact with the drum-shaped photoreceptor 1a of the image carrier 1. And a cleaning roller 2 that is rotatably held in the direction of arrow B shown in FIG.
And a cleaning roller blade member 4 for removing the toner (t) adhering to the cleaning roller 2 coated with the lubricant (S) by the lubricant coating means 3 after the transfer step. Toner (t) remaining on the drum-shaped photoreceptor 1a of the image carrier 1 is reliably removed, and the life is long, and the durability of the drum-shaped photoreceptor 1a of the image carrier 1 is excellent and low. It becomes possible to form a high quality image at a cost. The image carrier 1
The drum-shaped photoconductor 1a is an organic photoconductor (OP
C), the manufacturing cost is low, the environmental pollution is small, and the photoreceptor can be designed relatively freely, and it is not pressed by a strong force or the photoreceptor film is scraped, and it has excellent durability. ing.

The cleaning roller 2 rotates in a direction opposite to the arrow B direction shown in the figure, which is different from the arrow A direction of the drum-shaped photoreceptor 1a of the image carrier 1, to rotate the core metal 2a.
And an elastic conductive layer 2b in which conductive fine particles made of an oxide of a metal such as carbon black, titanium, aluminum, or an ion conductive agent are dispersed in an elastic material such as polyurethane rubber, silicon rubber, or brane rubber. .
A medium resistance layer 2d is provided on the surface of the cleaning roller 2 in order to prevent a bias current from leaking due to a pinhole on the surface of the image carrier 1 to the drum-shaped photoreceptor 1a. Further, in order to prevent the surface of the cleaning roller 2 from being soiled, a surface protective layer 2e is further provided. Specifically, the cleaning roller 2
Has a product resistivity of 10 with respect to the core metal 2a having a diameter of 6 (mm).
^The diameter was adjusted to ^{6 to} 10 ¹² (Ω · cm) and the diameter was 16 (mm). A power source 2c is connected to the cored bar 2a, and a voltage is applied to the cleaning roller 2 from the power source 2c, so that toner remaining on the drum-shaped photoconductor 1a of the image carrier 1 remains. t) is attracted to the cleaning roller 2 side by an electrostatic force, and the cleaning roller 2 rotates, so that cleaning can be performed more reliably. The brush roller 3a with which the lubricant applying member 3b of the lubricant applying means 3 comes in contact with the image carrier 1 from the cleaning roller 2 is in constant contact with the image carrier 1.
Is arranged on the downstream side in the rotation direction of the drum-shaped photosensitive member 1a, and both the drum-shaped photosensitive member 1a of the image carrier 1 and the cleaning roller 2 are in contact with and simultaneously rubbed. Is arranged so as to apply the lubricant (S), and is rotated in the direction of arrow C, which is the same as the direction of arrow A of the drum-shaped photoreceptor 1a of the image carrier 1. Even if the toner (t) attached and remaining on the drum-shaped photoreceptor 1a of the image carrier 1 cannot be completely removed by the cleaning roller 2, the drum-shaped photoreceptor of the image carrier 1 is removed. Since the brush roller 3a of the lubricant applying means 3 arranged on the downstream side in the rotation direction of the body 1a is used for removal, it is possible to reliably prevent defective cleaning.

The brush roller 3 of the lubricant applying means 3
a, the length of the brush bristles 3a ₁ is 0.2 (mm) to 20.
The length is 0 (mm), and a more preferable length is in the range of 0.5 (mm) to 10.0 (mm). The length of the brush bristles 3a ₁ of the brush roller 3a of the lubricant applying means 3 is
When the length of the brush bristles 3a ₁ is 20.0 (mm) or more, electrostatic flocking cannot be reliably performed by the current technology, and the brush bristles 3a ₁ of the brush roller 3a vary. . Further, the brush bristles 3a ₁ of the brush roller 3a are repeatedly rubbed with the drum-shaped photosensitive member 1a of the image carrier 1 together with the running print.
The inclination angle in the opposite direction decreases, and the hair falls and the cleaning property is deteriorated. The brush roller 3a of the lubricant applying means 3
When the length of the brush bristles 3a ₁ is 0.2 (mm) or less, the drum-shaped photoreceptor 1a of the image carrier 1
Lack of physical force against the application of lubricant (S),
Alternatively, the cleaning property of the toner (t) is deteriorated. The brush roller 3a of the lubricant application means 3, as an example, a length of 5.0 above the bristles 3a ₁ to the core metal 3a ₂ of metal having a diameter of 6 (mm) (mm), thickness: 3 denier conductive The tape is made by winding a rayon fiber into a pile fabric so that the fiber diameter becomes 200,000 (books / inch ² ), and is wound in a spiral shape to have a diameter of 16 (mm). The cleaning roller blade member 4 is made of a polyurethane material having a low cost and a simple structure and excellent material for removing toner (t) adhering to the cleaning roller 2. The roller (2) is arranged with a predetermined amount of intrusion in the direction of rotation of the roller 2 in the direction of the arrow B in the figure, and scrapes off the toner (t) removed and collected from the drum-shaped photoreceptor 1a of the image carrier 1. . However, since the lubricant (S) is applied onto the cleaning roller 2 through the brush roller 3a of the lubricant applying means 3 using the lubricant applying member 3b, the elasticity like the cleaning roller 2 is obtained. Even if the body is scraped with the cleaning roller blade member 4 made of a polyurethane material which is a viscoelastic substance, the friction between the blade edge portion of the cleaning roller blade member 4 and the cleaning roller 2 is small, and the load of the cleaning roller 2 is small. Does not become large, and the rotation of the cleaning roller 2 does not stop. Alternatively, even if the cleaning roller 2 rotates, so-called “chatter” and “squeal” are prevented from occurring, and the toner (t) on the surface of the cleaning roller 2 is sufficiently scraped off by the cleaning roller blade member 4. .

The surface of the cleaning roller 2 is coated with a lubricant (S) to reduce the friction coefficient, and even if it is an elastic body, the cleaning roller blade member 4 can easily scrape off the toner (t). . this is,
The frictional resistance between the edge of the cleaning roller blade member 4 and the cleaning roller 2 is reduced so that “chatter” and “squeal” are less likely to occur, and the adhesive force between the toner (t) and the cleaning roller 2 is reduced. This is because Further, the lubricant applying means 3 applies the lubricant (S) also on the drum-shaped photoreceptor 1a of the image carrier 1 via the brush roller 3a with which the lubricant applying member 3b contacts with a certain amount of penetration. It is configured to be able to. The drum-shaped photoreceptor 1 of the image carrier 1
By applying a lubricant (S) to a, the surface friction coefficient of the drum-shaped photoreceptor 1a of the image carrier 1 can be lowered, and the toner (t) of the drum-shaped photoreceptor 1a of the image carrier 1 can be reduced. The adhesion force to the body 1a is reduced, and the image bearing member 1 is transferred from the drum-shaped photoreceptor 1a to the transfer target (P)
The toner (t) can be easily transferred to the transfer paper of No. 1 or the intermediate transfer belt 1b of the image carrier 1 to improve the transfer efficiency.

A lubricant (S) applied on the drum-shaped photoreceptor 1a of the image carrier 1 and on the cleaning roller 2 through the brush roller 3a of the lubricant applying means 3 using the lubricant applying member 3b. ) Is a solution in which a lubricating oil additive containing zinc stearate as a main component is dissolved. In addition to zinc stearate, those having a stearic acid group such as barium stearate, iron stearate, nickel stearate, cobalt stearate, copper stearate, strontium stearate, and calcium stearate can be used. . In addition, the same fatty acid groups zinc oleate, barium oleate, lead oleate,
Hereinafter, the same as stearic acid, zinc palmitate, barium palmitate, lead palmitate, and the same as stearic acid may be used. In addition, caprylic acid, linolenic acid, corinolenic acid and the like can be used as the fatty acid group. Further, waxes such as candelilla wax, cannauba wax, rice wax, wood wax, amber oil, beeswax, and lanolin can also be used. These are organic solid lubricants and have good compatibility with each toner (t) and are easy to use. Further, Teflon (registered trademark) type or inorganic solid lubricant can be used depending on the toner (t). The cleaning device 0 uses a dry toner (t) containing at least modified polyester as a toner binder.

Examples of the modified polyester include a reaction product of a polyester prepolymer having an isocyanate group and amines. Examples of the polyester prepolymer having an isocyanate group include a polycondensation product of a polyol and a polycarboxylic acid, which is obtained by further reacting a polyester having an active hydrogen group with a polyisocyanate. Examples of the active hydrogen group contained in the polyester include alcoholic hydroxyl groups and phenolic hydroxyl groups, hydroxyl groups, amino groups, carboxyl groups, and mercapto groups, and among these, alcoholic hydroxyl groups are preferable. Further, the temperature width of the surface of the fixing member in contact with the fixed image having a glossiness of 5% to 30% is 50 (d
Eg) or more so that the wax finely dispersed therein is contained. Such a composition is excellent in heat-resistant storage stability, low-temperature fixability and hot offset resistance, and especially when used in a full-color image forming apparatus, image color reproducibility, transparency and gloss stability. It is possible to obtain an excellent image. Further, by finely dispersing the wax inside, the wax is prevented from seeping out from the inside of the toner (t) due to the pressure between the drum-shaped photoreceptor 1a of the image carrier 1 and the cleaning roller 2. It is possible to form a high-quality image by preventing so-called wax filming in which wax adheres to the drum-shaped photoreceptor 1a of the image carrier 1 or the cleaning roller 2. When wax filming occurs, the surface property of the drum-shaped photoconductor 1a of the image carrier 1 changes, and for example, the surface resistance decreases, and when used in the image forming apparatus 100, the output image blurs or flows. As a result, the quality of the formed image deteriorates. As described above, the toner (t) containing at least the modified polyester as the toner binder and having the wax finely dispersed therein is used in the cleaning device 0 to prevent wax filming and to provide a full-color image. Even when used in the forming apparatus 100a, it is possible to obtain an image excellent in color reproducibility, transparency, and gloss stability of the image.

2 and 3, the dry spherical toner (t) used in the cleaning device 0 has a circularity = circular length (l) of a circle having the same area (s) as the particle projected area (s).
/ Circumferential length (L) of the projected image of the particle, the circularity thereof is 0.98 or more, and a substantially spherical dry spherical toner (t) is used (see FIG. 2). Transfer efficiency (%) was measured using this dry spherical toner (t) (see FIG. 3). From this result, the transfer efficiency (%) is obtained by applying an appropriate applied voltage (V) to the transfer means 114.
The amount of dry spherical toner (t) remaining on the drum-shaped photoreceptor 1a of the image carrier 1 after transfer is almost 100 (%), which is extremely small. It is clear (see Figure 1). Usually, when negative polarity toner is used for development, in the transfer process, a positive voltage or current is applied to the transfer paper of the transfer target, and the negative polarity toner developed on the drum-shaped photoconductor of the image carrier. Is transcribed. Therefore, the toner remaining on the drum-shaped photosensitive member of the image bearing member, which is not transferred, is left under the influence of the peeling discharge generated when the toner is peeled off from the drum-shaped photosensitive member of the image bearing member after the transfer. The negative polarity has changed from the positive polarity to the positive polarity. However, all the adhered and remaining toners are not uniformly positively charged, but remain in a wide distribution state, and there are also toners having a negative polarity depending on transfer conditions. However, in the cleaning device 0, when the dry spherical toner (t) is used, a high transfer rate can be obtained without applying a high voltage or current that causes discharge in the transfer process (see FIG. 3). (See FIG. 1), the amount of the dry spherical toner (t) attached to the drum-shaped photoconductor 1a of the image carrier 1 after transfer and remaining after transfer is extremely small and remains negative polarity (FIG. 1). See). Therefore, since the amount of toner (t) to be cleaned by the cleaning device 0 is very small and the polarity is even, the cleaning by the cleaning roller 2 has a very good transfer efficiency. Since the toner can be moved more easily by an electrostatic action than the pulverized toner, the drum-shaped photoreceptor 1a of the image carrier 1 can be easily moved.
The removal rate of dry spherical toner (t) from is very good.

In the cleaning device 0, the core metal 2a of the cleaning roller 2 is connected to the power sources 2c to 30.
By applying a voltage of 0 (V) to 500 (V), the toner (t) remaining on the drum-shaped photoreceptor 1a of the image carrier 1 is electrostatically applied to the toner (t) to be carried on the image carrier. The cleaning is performed from above the drum-shaped photosensitive member 1a of the body 1 (see FIG. 1). Further, if the cleaning device 0 is completely cleaned by the cleaning roller 2, the drum-shaped photoreceptor 1a of the image carrier 1 is completely removed.
Even when the toner (t) remaining on the image carrier 1 cannot be removed, the drum-shaped photoreceptor 1a of the image carrier 1 is removed.
The toner (t) attached and remaining on the upper surface is also mechanically removed by the brush roller 3a of the lubricant applying means 3. That is, the brush roller 3a of the lubricant applying means 3 applies the lubricant (S) to the drum-shaped photoconductor 1a of the image carrier 1 and to the cleaning roller 2, and to apply the image carrier 1 to the cleaning roller 2. Toner (t) adhering and remaining on the drum-shaped photoreceptor 1a of the image carrier 1 from the drum-shaped photoreceptor 1a
It has both the functions of removing (see FIG. 1).

In FIG. 4, the image forming apparatus 100 for forming an image by removing the toner remaining on the image carrier after transferring the toner image formed by the electrophotographic method to the transfer medium is described below. The drum-shaped photoconductor 1a of the image carrier 1 rotatably held in the direction of arrow A shown in the figure,
A charging unit 111 that charges the drum-shaped photosensitive member 1a of the image carrier 1 and a latent image that forms an electrostatic latent image on the drum-shaped photosensitive member 1a of the image carrier 1 that is charged by the charging unit 111. Forming means 112 and the latent image forming means 11
Developing means 113 for developing toner by attaching toner (t) to the electrostatic latent image formed in 2, and the toner image visualized by the developing means 113 is transferred onto a transfer sheet (P). The transfer means 114 for transferring, and the toner remaining on the drum-shaped photoreceptor 1a of the image carrier 1 after the toner image is transferred onto the transfer sheet of the transferred body (P) by the transfer means 114. An image forming unit 110 comprising the cleaning device 0 according to any one of claims 1 to 18 for removing (t), and the cleaning device 0 of the image carrier 1 after the transfer step. The toner (t) attached and remaining on the drum-shaped photosensitive member 1a is reliably removed to have a long life, and the drum-shaped photosensitive member 1a of the image carrier 1 has excellent durability and low cost and high quality. Form an image. The image forming apparatus 100 includes an organic photoconductive photoconductor as the drum-shaped photoconductor 1a of the image carrier 1 that rotates in the direction of arrow A shown in the drawing, and the charging unit 111 and the latent image formation around the photoconductor. The exposing means of the means 112, the developing means 113, the transfer means 114, the cleaning device 0, etc. are arranged. Furthermore, the image carrier 1
As the drum-shaped photoconductor 1a, a fixing unit 115 for fixing the toner image on the transfer paper of the transfer target (P) transferred from the organic photoconductive photoconductor is arranged.
The organic photoconductive photosensitive member as the drum-shaped photosensitive member 1a of the image carrier 1 is negatively charged and has a diameter of 60 (m).
m), the rotation speed is 300 (mm / sec).

As the charging means 111, for example, a charging roller is used, and the drum-shaped photoreceptor 1a of the image carrier 1 is used.
As the drum-shaped photoreceptor 1a of the image carrier 1 by being uniformly charged to a negative polarity by applying a predetermined voltage to the organic photoconductive photoreceptor 1a. The conductive photoconductor is charged to a predetermined polarity and a predetermined potential. Alternatively, the charging means 111 uses a scorotron charger composed of an electrode wire (not shown) and a grid electrode, which is arranged in non-contact with the organic photoconductive photosensitive member as the drum-shaped photosensitive member 1a of the image carrier 1. May be. The exposing means of the latent image forming means 112 uses a light emitting element such as an LD or an LED as a light emitting element, and an organic photoconductive photosensitive material as the drum-shaped photoreceptor 1a of the image carrier 1 is used based on image data. An electrostatic latent image is formed by irradiating the body with light. A predetermined voltage is applied to the charging roller of the charging unit 111 to set the charging potential of the organic photoconductive photosensitive member as the drum-shaped photosensitive member 1a of the image carrier 1 to -700 (V), and the electrostatic latent The potential after exposure to form an image was set to −150 (V). The developing means 113 includes a rotatable developer carrier having a magnet roller fixed inside for holding the developer, and a stirring and conveying screw for conveying the developer while stirring. As the developer, two-component magnetic brush development using a two-component developer composed of toner (t) and a magnetic carrier is used. A one-component development structure that does not require a carrier may be used. Also, the developing means 1
A voltage of -500 (V) is applied to the developer carrier of No. 13 from a developing bias power source (not shown), and negatively charged toner (t) is attached to the electrostatic latent image in the developing area to perform development. It is a negative-positive development system. As the toner (t) used, the dry spherical toner (t) described above is used. At the time of transfer, the transfer roller of the transfer means 114 contacts the organic photoconductive photosensitive member as the drum-shaped photosensitive member 1a of the image carrier 1 with a predetermined pressing force, and a voltage is applied from a power source (not shown). By doing so, at the transfer nip portion between the organic photoconductive photoreceptor as the drum-shaped photoreceptor 1a of the image carrier 1 and the transfer means 114, the drum-shaped photoreceptor 1a of the image carrier 1 is formed. The toner image on the surface of the organic photoconductive photoconductor as the transfer target (P)
Transfer to the transfer paper. Alternatively, the transfer means 114 is
A corotron or transfer belt (not shown) may be used.

Using the image forming apparatus 100, the cleaning property and the trouble of the organic photoconductive photosensitive member as the drum-shaped photosensitive member 1a of the image bearing member 1 of the cleaning device 0 were confirmed. The cleaning roller 2 has a penetration amount of 0.5 (mm) with respect to the organic photoconductive photosensitive member as the drum-shaped photosensitive member 1a of the image carrier 1, and the cleaning roller of the brush roller 3a of the lubricant applying means 3 2 is 1.0 (mm), and the brush roller 3a of the lubricant applying means 3 is 1.0 in the organic photoconductive photoreceptor as the drum-shaped photoreceptor 1a of the image carrier 1. (Mm), and a voltage of 400 (V) was applied to the core metal 2a of the cleaning roller 2. The dry spherical toner (t) described above was used.
A durability test was conducted under these conditions to check the occurrence of cleaning failure, the occurrence of filming failure, and the durability of the organic photoconductive photoreceptor as the drum-shaped photoreceptor 1a of the image carrier 1. In the experiment, a blade cleaning device with a cleaning blade was similarly evaluated as a comparative experiment, and the result at the time of completion of 300K is shown in FIG.

From the results shown in FIG. 5, by using the cleaning device 0, the cleaning property was good (∘), the filming property was good (∘), and the durability was also good (∘). Therefore, the cleaning device 0
It has been clarified that the cleaning property and durability of the organic photoconductive photosensitive member as the drum-shaped photosensitive member 1a of the image bearing member 1 are sufficient. Further, when the brush roller 3a of the lubricant applying means 3 was observed, no clogging with time was observed, and an organic photoconductive photosensitive member as the drum-shaped photosensitive member 1a of the image bearing member 1, and the above The contact state with the cleaning roller 2 was maintained well. In FIG. 6, the color image forming apparatus 100a for forming a color image uses the cleaning device 0, and four yellow image forming units are arranged along the intermediate transfer belt 1b extending horizontally of the image carrier 1. 110
a, a magenta image forming unit 110b, a cyan image forming unit 110c, and a black image forming unit 110d, four types of image forming units are arranged for each color. The intermediate transfer belt 1b includes three support rollers 1b ₁ and _one support roller 1b.
It is supported and stretched by b ₂ and the support roller 1 b ₃ and is rotated in the direction of arrow D shown by a drive source (not shown).

The yellow image forming unit 110a, the magenta image forming unit 110b, the cyan image forming unit 110c, and the black image forming unit 110d are
Yellow drum-shaped photoreceptor 1a ₁ , magenta drum-shaped photoreceptor 1a ₂ , cyan drum-shaped photoreceptor 1a ₃ , black drum-shaped photoreceptor 1a ₄ , and yellow charging means 111a.
And magenta charging means 111b and cyan charging means 111c
And black charging means 111d, yellow latent image forming means 1
12a, magenta latent image forming means 112b, cyan latent image forming means 112c, black latent image forming means 112d, yellow developing means 113a, magenta developing means 113b, cyan developing means 113c and black developing means 113d, yellow transfer means 114a and magenta transfer. Means 114b, cyan transfer means 114c, black transfer means 114d,
It is composed of a yellow cleaning device 0a, a magenta cleaning device 0b, a cyan cleaning device 0c, a black cleaning device 0d and the like. Each of the yellow image forming unit 110a and the magenta image forming unit 11
0b, the toner image formed by the cyan image forming unit 110c, and the black image forming unit 110d, the toner image formed on the intermediate transfer belt 1b that extends horizontally and rotates in the direction of the arrow D shown in FIG. Magenta, cyan,
After black and each toner image are formed and primary-transferred, the intermediate transfer belt 1b is transferred to the secondary transfer unit 1.
The transfer sheet of the transferred body (P) secondarily transferred by 16 is fixed by the fixing unit 115, discharged, and stored. On the other hand, in the intermediate transfer belt 1b after the secondary transfer onto the transfer sheet of the transfer target body (P), the cleaning device 0 is arranged at a position corresponding to the support roller 1b ₁ , and the above-mentioned cleaning device 0 after the secondary transfer is performed. The toner (t) attached and remaining on the intermediate transfer belt 1b is likewise surely removed. The formation of each toner image is yellow,
Although the order of magenta, cyan, and black has been described, the number is not limited to the number of colors arranged in order, and the selected colors may be arranged in any order.

According to the cleaning device 0, the toner (t) adhering and remaining on the intermediate transfer belt 1b of the image carrier 1 used in the color image forming device 100a for forming the color image is removed. The cleaning method is not a scraping cleaning method such as a cleaning blade, but is electrostatically removed, so that rotation is not stopped even from an elastic body, and cleaning is easily and reliably performed. or,
Since the stress on the toner (t) is small, toner filming on the intermediate transfer belt 1b of the image carrier 1 does not occur. Therefore, it has become possible to provide the color image forming apparatus 100a that forms a stable and high-quality image for a long period of time.

[0024]

Since the present invention is constructed as described above, according to the first aspect of the invention, the toner remaining on the image carrier which is rotatably held is attached to the image. The cleaning roller blade member removes the toner adhering to the cleaning roller coated with the lubricant by the lubricant applying means. ,
To provide a cleaning device capable of surely removing toner attached and remaining on an image carrier after a transfer step and having a long life and excellent durability of the image carrier to form a high-quality image at low cost. I was able to do it. According to the second aspect of the present invention, the toner attached and remaining on the organic photosensitive member of the image bearing member rotatably held is brought into contact with the organic photosensitive member of the image bearing member and rotatable. The cleaning roller blade member removes the toner adhering to the cleaning roller coated with the lubricant by the lubricant application means.The cleaning cost is low and the environmental pollution is low. Even if you use an organic photoconductor that allows you to freely design the photoconductor, the toner that remains on the surface of the image carrier after the transfer process can be reliably removed and the life is long. It has become possible to provide a cleaning device having excellent body durability and capable of forming high-quality images at low cost. According to the third aspect of the invention, the toner remaining on the drum-shaped photosensitive member having the drum shape of the rotatably held image carrier is abutted on the image carrier and rotatably held. The cleaning roller blade member removes the toner adhering to the cleaning roller coated with the lubricant by the lubricant applying means for applying the lubricant to the cleaning roller to be removed. Even when a photoconductor is used, the toner remaining on the drum-shaped photoconductor of the image carrier after the transfer process is reliably removed and the life is long and the durability of the image carrier is excellent and the cost is high and the quality is high. It has become possible to provide a cleaning device capable of forming an image of.

According to the fourth aspect of the present invention, the toner remaining on the belt-shaped intermediate transfer belt of the rotatably held image carrier is left in contact with the image carrier and rotatable. The cleaning roller blade member removes the toner attached to the cleaning roller coated with the lubricant by the lubricant applying means. However, the rotation does not stop, the occurrence of toner filming is prevented, and the toner attached and remaining on the intermediate transfer belt of the image carrier after the transfer process is reliably removed to prolong the life of the image carrier. It is now possible to provide a cleaning device which has excellent durability and is capable of forming high-quality images at low cost. According to the invention of claim 5,
A lubricant is applied to the cleaning roller that abuts on the image bearing member rotatably held and remains on the image bearing member to remove the toner by holding the toner rotatably. Since the cleaning roller blade member removes the toner attached to the applied cleaning roller and the cleaning roller rotates in the direction opposite to the rotation direction of the image carrier, it adheres to the image carrier after the transfer process. As a result, it is possible to provide a cleaning device capable of forming a high-quality image at a low cost with a long life and excellent durability of the image bearing member by further reliably removing the residual toner. According to the sixth aspect of the invention, the lubricant is applied to the cleaning roller that removes the toner that remains on the image bearing member that is rotatably retained by contacting the image bearing member and rotatably retained. The toner that adheres to the cleaning roller coated with the lubricant by the lubricant applying means is removed by the cleaning roller blade member, and the cleaning roller is composed of an elastic conductive layer in which conductive fine particles are dispersed in an elastic material centering on a core metal. As a result, the toner remaining on the image carrier after the transfer process can be reliably removed by electrostatic force, and the life is long and the durability of the image carrier is excellent and the cost is low. It has become possible to provide a cleaning device capable of forming a high quality image. According to the seventh aspect of the invention, the lubricant is applied to the cleaning roller that removes the toner that remains on the image bearing member rotatably held and remains on the image bearing member by abutting on the image bearing member. The toner which adheres to the cleaning roller coated with the lubricant by the lubricant applying means is removed by the cleaning roller blade member and the voltage is applied to the cleaning roller by the power source. To provide a cleaning device capable of reliably removing the toner remaining on and remaining on the surface of the image carrier by applying a voltage, and having a long life and excellent durability of the image carrier and forming a high-quality image at low cost. I was able to do it.

According to the eighth aspect of the present invention, the cleaning is performed in which the toner attached and remaining on the image bearing member rotatably held is brought into contact with the image bearing member and rotatably held and removed. The cleaning roller blade member removes the toner attached to the cleaning roller coated with the lubricant by the lubricant applying means for applying the lubricant to the roller.
Since the voltage of (V) is applied, the toner attached and remaining on the image carrier after the transfer process is further reliably removed, and the life is long and the durability of the image carrier is excellent and the cost is low. It is now possible to provide a cleaning device capable of forming a high quality image. According to the ninth aspect of the present invention, a lubricant is applied to the cleaning roller that removes the toner that remains on the image carrier that is rotatably retained by contacting the image carrier and rotatably retained. The cleaning roller blade member removes the toner adhering to the cleaning roller coated with the lubricant by the lubricant applying means, and the cleaning roller is made of a medium resistance layer. Prevents leakage of bias current, and reliably removes toner that remains on the image carrier after the transfer process, and has a long life and excellent durability of the image carrier to form high-quality images at low cost. It is now possible to provide a cleaning device that can. According to the tenth aspect of the present invention, the lubricant is applied to the cleaning roller that removes the toner that remains on the image carrier that is rotatably held and remains by contacting the image carrier and rotatably held. The toner that adheres to the cleaning roller coated with the lubricant by the lubricant applying means is removed by the cleaning roller blade member, and the cleaning roller is made of the surface protective layer, so that the surface of the cleaning roller is prevented from being soiled. Provided is a cleaning device capable of reliably removing the toner remaining on the image bearing member after the transfer process and having a long life and excellent durability of the image bearing member to form a high quality image at low cost. I can do it now. According to the eleventh aspect of the present invention, a lubricant is applied to the cleaning roller that removes the toner that remains on the image bearing member that is rotatably retained by contacting the image bearing member and rotatably retaining the toner. The toner that adheres to the cleaning roller coated with the lubricant by the lubricant applying means is removed by the cleaning roller blade member, and the lubricant applying means also applies the lubricant to the image bearing member. The friction coefficient can be lowered, the adhesion of the toner to the image carrier is reduced, the transfer target or the intermediate transfer belt toner is easily transferred from the image carrier, the transfer efficiency is improved, and the image after the transfer process is improved. A cleaning device capable of reliably removing the toner remaining on the carrier and having a long life and excellent durability of the image carrier to form a high-quality image at low cost. To provide has become to be able to.

According to the twelfth aspect of the present invention, the cleaning is performed in which the toner attached and remaining on the rotatably held image carrier is brought into contact with the image carrier to be rotatably held and removed. A roller for applying a lubricant to the roller. A cleaning roller blade member removes the toner attached to the cleaning roller coated with the lubricant by the lubricant applying means, and the lubricant applying means rubs the image carrier and the cleaning roller to apply the lubricant. Since it is composed of a roller, the brush roller makes contact with both the image bearing member and the cleaning roller, simultaneously rubs them, and the lubricant is applied in a combined manner.
A cleaning device capable of surely removing the toner remaining on the image carrier after the transfer process and having a long life and excellent durability of the image carrier, and capable of forming a high-quality image at low cost. Can be provided.
According to the thirteenth aspect of the present invention, the lubricant is applied to the cleaning roller that removes the toner remaining on the image bearing member rotatably retained by contacting the image bearing member with the toner rotatably retained. The toner that adheres to the cleaning roller coated with the lubricant by the lubricant applying means is removed by the cleaning roller blade member, and the lubricant applying means rubs the image carrier and the cleaning roller to clean the brush roller applying the lubricant. Since it is arranged on the downstream side of the roller in the rotation direction of the image carrier, even if the cleaning roller cannot completely remove the toner remaining on the image carrier and remaining on the image carrier, it is located in the downstream direction of rotation of the image carrier. It is removed by the brush roller of the lubricant applying means arranged on the side and contacted with both the image bearing member and the cleaning roller by the brush roller. At the same time, a lubricant is also applied by rubbing, and the toner remaining on the image carrier after the transfer step is surely removed to ensure a long life and excellent durability of the image carrier. It has become possible to provide a cleaning device capable of forming a high quality image at low cost. According to the fourteenth aspect of the present invention, the lubricant is applied to the cleaning roller that removes the toner that remains on the image carrier that is rotatably held and remains by contacting the image carrier and rotatably held. The toner which adheres to the cleaning roller coated with the lubricant by the lubricant applying means is removed by the cleaning roller blade member, and the lubricant applying means rubs the image carrier and the cleaning roller to apply the lubricant. Is 0.2 (mm) to 20.0
Since the brush roller of (mm) is arranged downstream of the cleaning roller in the rotation direction of the image carrier,
The bristles of the brush roller are surely planted to prevent bristles and at the same time, the cleaning roller can remove the toner remaining on the image carrier without lowering the lubricant application ability and toner cleaning performance. Even if it is not present, it is removed by the brush roller of the lubricant applying means arranged on the downstream side in the rotation direction of the image carrier, and the brush roller makes contact with both the image carrier and the cleaning roller to simultaneously rub them. Lubricant is also used for both purposes, and the toner that remains on the image carrier after the transfer process can be reliably removed to ensure a long life and excellent durability of the image carrier. It has become possible to provide a cleaning device capable of forming an image of.

According to the fifteenth aspect of the present invention, cleaning is performed in which the toner adhering and remaining on the image bearing member rotatably held is brought into contact with the image bearing member and rotatably held and removed. The toner that adheres to the cleaning roller coated with the lubricant by the lubricant applying means is removed by the cleaning roller blade member made of polyurethane material. It has excellent performance of removing the toner that adheres, reliably removes the toner that remains on the image carrier after the transfer process, and has a long life and excellent durability of the image carrier.
Furthermore, it has become possible to provide a cleaning device capable of forming a high-quality image at low cost. According to the sixteenth aspect of the present invention, the cleaning roller that removes the dry spherical toner attached and remaining on the rotatably held image carrier by contacting and rotatably held on the image carrier. The dry spherical toner that adheres to the cleaning roller coated with the lubricant by the lubricant applying means is removed by the cleaning roller blade member, so that the dry type toner that remains on the image carrier after the transfer process remains. It has become possible to provide a cleaning device capable of reliably removing spherical toner and having a long life and excellent durability of an image carrier to form a high quality image at low cost. According to a seventeenth aspect of the present invention, a lubricant is applied to the cleaning roller that removes the toner attached and remaining on the rotatably held image carrier by contacting with the image carrier and rotatably held. The toner which adheres to the cleaning roller coated with the lubricant by the lubricant applying means is removed by the cleaning roller blade member, and the toner contains modified polyester as at least a toner binder to finely disperse the wax inside. As a result, it is possible to prevent wax filming and to have excellent heat-resistant storage stability, low-temperature fixability, and hot offset resistance. In particular, images with excellent color reproducibility, transparency, and gloss stability when used for full-color image formation. The toner remaining on the image carrier after the transfer process can be reliably removed and the life of the image is extended. Durability superior low-cost lifting body, further, it has become possible to provide a cleaning apparatus which can form a high quality image.

According to the eighteenth aspect of the present invention, the cleaning is performed in which the toner attached and remaining on the image bearing member rotatably held is brought into contact with the image bearing member and rotatably held and removed. The toner that adheres to the cleaning roller coated with the lubricant by the lubricant applying means for applying the lubricant to the roller is removed by the cleaning roller blade member, and the toner has a circularity of 0.98 or more. Since the amount of toner is very small and the polarity is also negative, cleaning with a cleaning roller has a very good transfer efficiency, and toner movement by electrostatic action is more effective than pulverized toner. The removal rate of the dry spherical toner from the image carrier is very good, and the toner remaining on the image carrier after the transfer process remains. Moreover, life became a cleaning apparatus capable of forming high-quality images to be able to provide durability superior low-cost long image bearing member to ensure removal. According to the nineteenth aspect of the invention, the toner is attached to the electrostatic latent image formed by the latent image forming unit that forms the electrostatic latent image on the image carrier that is rotatably held by the charging unit. 19. The cleaning apparatus according to claim 1, wherein the toner image visualized by the developing means for visualizing the toner image is transferred to the transfer object by the transfer means for transferring the toner image to the transfer object. The image is formed by the image forming unit that removes the toner remaining on the image carrier by means of the image forming unit. It has become possible to provide an image forming apparatus provided with a cleaning device that forms a high-quality image at a low cost with long durability of the image carrier.

According to the twentieth aspect of the present invention, the toner is formed on the electrostatic latent image formed by the latent image forming means for forming the electrostatic latent image on the rotatably held image carrier charged by the charging means. The toner image according to any one of claims 1 to 18, after the toner image is transferred to the transfer target by the transfer unit that transfers the toner image visualized by the developing unit to which the toner is attached and visualized on the transfer target. The color image is formed by at least two image forming units that remove the toner remaining on the image carrier by the cleaning device described above. Therefore, the color image is adhered and remains on the image carrier after the transfer process. It has become possible to provide an image forming apparatus provided with a cleaning device that reliably removes toner, has a long life, and has excellent durability of an image bearing member at low cost and forms a high quality color image.

[Brief description of drawings]

FIG. 1 is an explanatory diagram illustrating a cleaning device according to an embodiment of the present invention.

FIG. 2 is an enlarged explanatory diagram illustrating a main part of the cleaning device according to the embodiment of the present invention.

FIG. 3 is a graph diagram illustrating characteristics of a transfer voltage (V) and a transfer efficiency (%) of a main part of a cleaning device according to another embodiment of the present invention.

FIG. 4 is an explanatory diagram illustrating an image forming apparatus including a cleaning device according to an embodiment of the present invention.

FIG. 5 is a table for explaining the durable number (k) of the cleaning device and the blade cleaning device according to the embodiment of the present invention, and the characteristics of cleaning property, filming property, and durability.

FIG. 6 is an explanatory diagram illustrating another image forming apparatus including the cleaning device according to the embodiment of the present invention.

[Description of Reference Signs] 0 cleaning device, 0a yellow cleaning device, 0b magenta cleaning device, 0c cyan cleaning device, 0d black cleaning device 1 image carrier, 1a drum-shaped photoconductor, 1a ₁ yellow drum-shaped photoconductor, 1a ₂ magenta Drum-shaped photoconductor, 1a ₃ Cyan drum-shaped photoconductor, 1a ₄ Black drum-shaped photoconductor, 1b Intermediate transfer belt, 1b ₁
Support roller, 1b ₂ Support roller, 1b ₃ Support roller 2 Cleaning roller, 2a Core metal, 2b Elastic conductive layer, 2c Power source, 2d Medium resistance layer, 2e Surface protection layer 3
Lubricant applying means, 3a brush roller, 3a ₁ brush bristles, 3a ₂ core metal, 3b lubricant applying member 4, cleaning roller blade member, 4a support,
100 image forming apparatus, 100a color image forming apparatus 110 image forming unit, 110a yellow image forming unit, 110b magenta image forming unit, 110c cyan image forming unit, 110d black image forming unit 111 charging means, 111a yellow charging means, 11
1b magenta charging means, 111c cyan charging means,
111d black charging means 112 latent image forming means, 112a yellow latent image forming means, 112b magenta latent image forming means, 112c cyan latent image forming means, 112d black latent image forming means 113 developing means, 113a yellow developing means, 11
3b yellow developing means, 113c cyan developing means,
113d Black developing means 114 Transfer means, 114a Yellow transfer means, 11
4b magenta transfer means, 114c cyan transfer means,
114d Black transfer means 115 Fixing means 116 Secondary transfer means

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G03G 15/16 G03G 21/00 312 21/00 9/08 331 F term (reference) 2H005 AA01 AA06 AA15 CA08 CA14 EA10 2H030 AA07 AB02 AD01 AD03 BB02 BB42 BB63 2H134 GA01 GA06 GB02 HA03 HA05 HA11 HA13 HA17 KD05 KD07 KD08 KD12 LA01 2H200 FA02 FA09 GA16 GA23 GA45 GA46 GA47 GB15 HA02 HA12LB15 LB33 LB03LB03 LB03 LB03 LB03 LB03 LB03 LB03 LB03 LB03 LB03 LB03 LB03 LB03 LB03 LB03 LB03 LB03 LB03 LB03 LB13 LB03 LB03 LB03 LB03 LB03 LB02 MA12 MA14 MA20 MB01 MB04 MC01 NA02 NA09

Claims (20)

[Claims] 1. A cleaning device for removing toner remaining on an image carrier after transferring a formed toner image to a transfer medium, the image carrier being rotatably held, and the image carrier. A cleaning roller for abutting on the image carrier and remaining toner on the image carrier is rotatably held and removed, a lubricant applying means for applying a lubricant to the cleaning roller, and a lubricant applying means. A cleaning device comprising: a cleaning roller blade member that removes toner attached to the cleaning roller coated with a lubricant. 2. The cleaning device according to claim 1, wherein the image carrier comprises an organic photoconductor. 3. The cleaning device according to claim 1, wherein the image carrier is a drum-shaped photosensitive member having a drum shape. 4. The cleaning device according to claim 1, wherein the image carrier is a belt-shaped intermediate transfer belt. 5. The cleaning device according to claim 1, wherein the cleaning roller rotates in a direction opposite to a rotation direction of the image carrier. 6. The cleaning device according to claim 1, wherein the cleaning roller comprises a cored bar and an elastic material fixed to the outer periphery of the cored bar and having conductive particles dispersed in an elastic material. A cleaning device comprising: a conductive layer. 7. The cleaning device according to claim 1, 2, 3, 4, 5 or 6, wherein the cleaning roller is
A cleaning device characterized in that a voltage is applied by a power supply. 8. The cleaning device according to claim 1, 2, 3, 4, 5, 6 or 7, wherein the cleaning roller applies a voltage of 300 (V) to 500 (V) to the core metal from a power source. A cleaning device characterized by the above. 9. The cleaning device according to claim 1, 2, 3, 4, 5, 6, 7 or 8, wherein the cleaning roller comprises a medium resistance layer. 10. The method according to claim 1, 2, 3, 4, 5, 6, 7,
8. The cleaning device according to 8 or 9, wherein the cleaning roller comprises a surface protective layer. 11. The cleaning device according to claim 1, wherein the lubricant applying unit applies the lubricant to the image bearing member as well. 12. The cleaning device according to claim 1, wherein the lubricant applying means includes an image carrier and a brush roller that rubs the cleaning roller to apply the lubricant. Cleaning device. 13. The cleaning device according to claim 12, wherein the brush roller is arranged downstream of the cleaning roller in the rotational direction of the image carrier. 14. The cleaning device according to claim 13, wherein the brush roller has a brush bristle length of 0.2.
The cleaning device is (mm) to 20.0 (mm). 15. The cleaning device according to claim 1, wherein the cleaning roller blade member is made of a polyurethane material. 16. The cleaning device according to claim 1, wherein the toner is a dry spherical toner. 17. The cleaning device according to claim 1, wherein the toner contains at least modified polyester as a toner binder and a wax is finely dispersed therein. Cleaning device. 18. The cleaning device according to claim 1, wherein the toner has a circularity of
A cleaning device which is 0.98 or more. 19. An image forming apparatus for forming an image by removing a toner remaining on an image carrier after transferring a toner image formed by using an electrophotographic method to a transfer target, and being rotatable in an image forming apparatus. The held image carrier, charging means for charging the image carrier, latent image forming means for forming an electrostatic latent image on the image carrier charged by the charging means, and the latent image forming means. Developing means for developing toner by attaching toner to the formed electrostatic latent image, transfer means for transferring the toner image visualized by the developing means to a transfer medium, and transfer medium for the transfer means. 19. An image forming unit comprising: the cleaning device according to claim 1, which removes toner remaining on the image carrier after the toner image is transferred onto the image carrier. Image forming apparatus. 20. The image forming apparatus according to claim 19, comprising at least two image forming units and forming a color image.