JP3204757B2 - Filming removal device in image forming apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus, and more particularly to a filming removing apparatus in a color image forming apparatus.

[0002]

2. Description of the Related Art Conventionally, an image forming apparatus of this type has many parts similar to those of the embodiment of the present invention, and will be described with reference to this. An image forming unit 2 for forming a toner image for each color component and a transfer member 4 for the electrostatic latent image formed on the surface of the body 1, and the transfer member 4 is provided with the toner image for each color component. A transfer unit 3 for transferring the one image onto a recording paper moving in synchronization with the transfer member 4 and a residual toner image on the surface of the photosensitive member 1 and the transfer member 4 are transferred to each image by transferring the image. Photoconductor cleaning unit 6 for cleaning
And a transfer member cleaning unit 7, and a fur brush member 8 and a sweeper member 9 for removing filming substances adhered to the surfaces of the photoconductor 1 and the transfer member 4, respectively. 6 and 7
Are provided with cleaning members 11 and 12 each comprising a cleaning blade which abuts on the photosensitive member 1 and the transfer member 4 to scrape off residual toner, and the sweeper member 9 comprises a cleaning roller, a brush roller and the like.

[0003]

By the way, in such a case, (1) when the filming material is removed by the sweeper member 9 while the residual toner remains on the surface of the transfer member 4, the sweeper member 9 is removed. (2) If the filming material is removed by the sweeper member 9 alone at a predetermined timing, the preparation time until the image forming apparatus starts the image forming operation is reduced. (3) When the image forming operation is started immediately after the filming material removing operation by the sweeper member 9, the surface of the transfer member 4 generated by being scraped by the sweeper member 9 is reduced. Since the fine powder of the filming substance enters the image forming operation while remaining on the surface of the transfer member 4, the fine powder of the filming substance (4) Since the transfer member 4 comes into contact with the recording paper in the transfer step, the quality of the recording paper is reduced because the toner adheres to the surface of the copying member 4 or a toner image is formed on the fine powder. When the fibrous paper powder component, which is one of the components, adheres and the cleaning member 12 cleans the residual toner on the surface of the transfer member 4, the cleaning member 12 is interposed between the cleaning member 12 and the surface of the transfer member 4 for cleaning. (5) When the sweeper member 9 is formed of a brush roller, a part of the filming material removed by the brush roller adheres to the surface of the brush fiber of the brush roller and remains. (6) When the sweeper member 9 is constituted by a brush roller, the brush roller is in contact with the surface of the transfer member 4. Since the brush fibers are always rotating in the same direction, the brush fibers of the brush roller fall down in the direction opposite to the rotating direction with the passage of time, resulting in a so-called bristle state. (7) The sweeper member 9 winds the brush member in which the brush fibers are implanted on the base material in a certain direction around the rotation axis, as the filming material removing ability decreases with time as compared with the initial state. When the transfer member 4 is constituted by an endless belt, when the sweeper member 9 is operated, the transfer member 4 generates a force in a direction opposite to the winding direction of the brush member of the sweeper member 9, that is, a rotational reaction force of the brush roller. As a result, a so-called belt shift state is gradually generated in a direction perpendicular to the rotation direction of the transfer member 4, and each color toner component overlap after the operation of the sweeper member 9 occurs. There is a problem such as to generate a color shift at the time of shooting.

Accordingly, an object of the present invention is to solve the above-mentioned problems of the conventional image forming apparatus. (1) After removing residual toner from the surface of a transfer member, a filming substance is removed by a sweeper member. Accordingly, the residual toner does not adhere to the sweeper member, and the filming removing ability does not decrease. (2) By removing the filming material by the sweeper member at the same time as removing the filming material on the photosensitive member surface. In addition, the preparation time until the image forming apparatus starts the image forming operation does not increase, and the efficiency of the image forming operation is not reduced. (3) The image forming operation is performed immediately after the filming material removing operation by the sweeper member. The fine powder of the filming material on the transfer member generated by the sweeper member remains on the transfer member. The image quality is degraded because the fine powder of the filming substance does not re-adhere to the surface of the transfer member or a toner image is not formed on the fine powder without entering the image forming operation. (4) The fibrous paper powder component, which is one of the components contained in the recording paper, adheres to the transfer member in contact with the recording paper in the transfer step, and the cleaning member cleans the residual toner on the transfer member. At this time, the cleaning performance is not degraded by being sandwiched between the cleaning member and the surface of the transfer member. (5) When the sweeper member is constituted by a brush roller, the filming material removed by the brush roller is removed. Part of the brush roller does not adhere to and remain on the surface of the brush fiber, and the ability of the brush roller to remove the filming substance does not decrease. (6) When the epar member is constituted by a brush roller, the brush roller does not always rotate in the same direction in a state of being in contact with the surface of the transfer member, and the brush fibers of the brush roller rotate with time. (7) The brush roller does not fall down in a direction opposite to the direction and becomes so-called a bristle state, and the filming material removing ability of the brush roller does not decrease with time as compared with the initial state. When the sweeper member is configured by winding a brush member in which brush fibers are planted on a base material in a fixed direction around a rotation axis, and the transfer member is configured by an endless belt, the transfer member is operated when the sweeper member is operated. Receives the force in the opposite direction to the winding direction of the brush member of the sweeper member, that is, the rotation reaction force of the brush roller, and gradually moves in the direction orthogonal to the rotation direction of the transfer member. It is an object of the present invention to provide a filming removing apparatus in an image forming apparatus which does not generate a so-called belt-shift state and does not generate a color shift at the time of superimposing transfer of each color toner component after operation of a sweeper member.

[0005]

In order to achieve the above-mentioned object, the present invention is directed to an image forming apparatus, comprising: an electrostatic latent image formed on the surface of a uniformly charged photoreceptor; An image forming unit for forming a toner image for each component; and a transfer member. The toner image for each color component is transferred to the surface of the transfer member for each image formation to form one image, and is synchronized with the transfer member. A transfer unit that transfers the one image to a recording sheet that moves by moving; a photoconductor cleaning unit and a transfer member cleaning unit that respectively clean residual toner images on the surfaces of the photoconductor and the transfer member; and a surface of the photoconductor and the transfer member. An image forming apparatus including a fur brush member and a sweeper member for removing a filming substance adhered to the surface of the transfer member by the sweeper member. Before the cleaning, the transfer member cleaning unit performs an operation of removing the residual toner image on the surface of the transfer member, and during the operation of removing the filming material on the surface of the transfer member by the sweeper member, the fur brush member fills the surface of the photoconductor. The operation of removing the ming substance is performed. The invention described in claim 2 is the first invention.
In the invention described in (1), after the transfer member cleaning unit performs a cleaning operation of the residual toner image on the surface of the transfer member, the transfer member is reversed while the cleaning member of the transfer member cleaning unit is in contact with the surface of the transfer member. It is characterized by the following. According to a third aspect of the present invention, in the first aspect, the sweeper member is constituted by a brush roller, and the filming material on the surface of the transfer member removed by the brush roller is removed from the brush roller. And a flicker member that contacts the brush roller. According to a fourth aspect of the present invention, in the first aspect, an electrostatic latent image formed on the surface of a uniformly charged photoconductor is provided.
An image forming unit that forms a toner image for each color component; and a transfer member. The toner image for each color component is transferred to the surface of the transfer member for each image formation to form one image, and the transfer member A transfer unit that transfers the one image onto a recording sheet that moves in synchronization, a photoconductor cleaning unit and a transfer member cleaning unit that cleans a residual toner image on the surface of the photoconductor and the transfer member, and a photoconductor and transfer member cleaning unit. In an image forming apparatus including a fur brush member and a sweeper member for respectively removing a filming substance attached to a surface, a transfer member cleaning unit is provided before an operation of removing the filming substance on the surface of the transfer member by the sweeper member. The operation of removing the residual toner image on the surface of the transfer member is performed by using the brush roller, and the sweeper member is constituted by a brush roller. After removing the filming material on the surface of the copy member, the brush roller is reversed brush roller while in contact with the surface of the transfer member, and is characterized in that subsequent to separating the brush roller from the transfer member. The invention according to claim 5 has an image forming unit for forming a toner image for each color component for an electrostatic latent image formed on the surface of a uniformly charged photoconductor, and a transfer member. A transfer unit that transfers the toner image for each color component to the surface of the transfer member for each image formation to form one image, and transfers the one image to recording paper that moves in synchronization with the transfer member; A photoreceptor cleaning unit and a transfer member cleaning unit for cleaning residual toner images on the surface of the member; and a fur brush member and a sweeper member for removing filming substances adhered to the photoreceptor and transfer member surfaces, respectively. In the image forming apparatus, before the operation of removing the filming material on the surface of the transfer member by the sweeper member, the residual toner image on the surface of the transfer member by the transfer member cleaning unit is provided. The removing operation is performed, and the removing operation of the filming material on the surface of the photoconductor by the fur brush member is performed during the removing operation of the filming material on the surface of the transfer member by the sweeper member, and the sweeper member is configured by a brush roller. A first mode in which the transfer member is rotated in a direction to transfer an image on the surface of the transfer member to the surface of the recording paper, and the brush roller is rotated in a direction opposite to the rotation direction of the transfer member;
A second mode in which the transfer member is rotated in a direction opposite to the direction in which the image on the surface of the transfer member is transferred onto the recording paper, and the brush roller is rotated in a direction opposite to the rotation direction of the transfer member. Things.

[0006]

According to the present invention as described above, a latent image is started to be formed based on image data, and is developed with a first color toner by a first color developing device in an image forming section. The image is transferred to the transfer member in a state where the body and the transfer member are in contact with each other, and the same is performed for the second and subsequent color images to form a multicolor superimposed image on the surface of the transfer member. The waiting recording paper is sent out at the same timing as the image on the photoreceptor surface, and the multicolor superimposed images are collectively transferred onto the recording paper. After that, the recording paper is transported to a fixing unit (not shown) by a conveying member. The sheet is conveyed and the image is fixed. At this time, the surface of the photoreceptor after the paper transfer is cleaned by a cleaning member in a photoreceptor cleaning unit. The surface of the transfer member is cleaned by the cleaning member of the transfer member cleaning unit. However, the deposits that cannot be removed by the cleaning member are removed by the sweeper member, and the transfer member is removed by the sweeper member. The material removed from and adhered to the surface is removed by the flicker member.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment of the present invention shown in FIG. 1, the same parts as those of the prior art are denoted by the same reference numerals, and the description thereof will be omitted. The image forming unit 2 is provided with developing units 14 to 17 of different colors, the transfer unit 3 includes a belt transfer unit 5 and a paper transfer unit 27, and the transfer member 4 of the belt transfer unit 5 is configured by an endless belt. The transfer member 4 includes a driving roller 19 and a transfer member bias roller 20.
A transfer member cleaning unit 7 suspended by a driven roller 21 and having a cleaning member made of a rubber blade is provided on the opposite side in the middle between the drive roller 19 and the transfer member bias roller 20, and 22 is the transfer member 4 The sweeper member 9 is supported by a swingable support member 25 at a position opposed to the driven roller 21 together with a flicker member 24 disposed at a position where the sweeper member 9 bites into the sweeper member 9. The paper transfer unit 27 is a recording paper bias roller 28.
The recording paper bias roller 28 is movably supported by a support member 25 provided at a position facing the drive roller 19, and reference numeral 30 denotes a member for moving the recording paper bias roller 28 toward and away from the transfer member 4. 33 is a static elimination lamp, 34 is a charger,
Reference numeral 35 denotes a potential sensor, and reference numeral 36 denotes a recording paper conveying member.

In the above-described apparatus, when the image forming operation is started, the reading of the first color image is started by a color scanner (not shown) in the same manner as in the conventional image forming apparatus, and the photosensitive member 1 is moved by an arrow. , The latent image formation is started based on the image data, and the first color developing unit 14 of the image forming unit 2 develops the latent image with the first color toner. Photoconductor 1 in section 5
When the transfer member 4 is in contact with the transfer member 4, a predetermined bias voltage is applied to the transfer bias roller 20 to perform the same operation.
The multi-color superimposed image is formed on the surface of the transfer member 4 by performing the second and subsequent color images on the surface of the transfer member 4 according to 17. During the belt transfer process, the cleaning member 12 of the transfer member cleaning unit 7
Is separated from the transfer member 4 by the operation of the contact / separation member 22. The recording paper bias roller 28 of the paper transfer unit 27 is normally separated from the transfer member 4, and the recording paper waiting at a predetermined position (not shown) is sent out in synchronization with the image on the photoconductor 1, When the multicolor superimposed image is collectively transferred to the recording paper, the transfer member 4 is operated by the operation of the contact / separation member 30.
And a predetermined bias voltage is applied. The recording paper on which the multicolor superimposed image has been transferred in this manner is
The sheet is conveyed to a fixing unit (not shown) by the conveying member 36,
The image is fixed.

In the above case, the surface of the photoconductor 1 on which the image of the transfer member 4 has been transferred by the belt transfer unit 5 is cleaned by the cleaning member 11 in the photoconductor cleaning unit 6. Possible deposits are the photoreceptor cleaning unit 6
The surface of the photoconductor 1 is removed by polishing the surface of the photoconductor 1 by a fur brush member 8 that rotates in a direction opposite to the rotation direction of the photoconductor 1, and then the charge is uniformly removed by a discharge lamp 33. The surface of the transfer member 4 on which the image has been transferred onto the recording paper is cleaned by a cleaning member 12 pressed against the transfer member 4 by the operation of the contact / separation member 22, but cannot be removed by the cleaning member 11. The kimono is removed by a sweeper member 9 rotating in contact with the transfer member 4, and the material removed from the surface of the transfer member 4 by the sweeper member 9 and adhered thereto is removed by a flicker member 24. During the belt transfer process, the belt is separated from the transfer member 4 by the operation of the contact / separation member 26.

It is considered that there are the following three modes of movement of the transfer member 4 after the transfer of the first color image to the transfer member 4 in the belt transfer step.

(1) Constant-speed forward movement method After the belt transfer of the first color image is completed, the forward movement is continued at a constant speed, and the position of the leading end of the first color image on the transfer member 4 is changed to the photosensitive member 1 again. When the photosensitive member 1 reaches the transfer position of the transfer member 4 which comes into contact with the photosensitive member 1, an image is formed on the photosensitive member 1 side in a timely manner so that the leading end of the next second color image is exactly at that position. As a result, the second color image is The third color image and the third color image are transferred to the transfer member 4 in the same manner as described above, and then transferred to the transfer member 4 in the same manner. While moving the transfer member 4 forward, the multicolor superimposed image on the surface of the transfer member 4 is collectively transferred to recording paper.

(2) Skip Forward Movement After the belt transfer of the first color image is completed, the transfer member 4 is separated from the photoreceptor 1, skipped in the forward movement direction and moved by a predetermined amount, and the original forward movement speed is reached. Then, the transfer member 4 is brought into contact with the photosensitive member 1 again. When the position of the leading end of the first color image on the surface of the transfer member 4 reaches the transfer position of the transfer member 4 that comes into contact with the photosensitive member 1 again, On the body 1 side, an image is formed at a timing such that the tip of the next second color image is exactly at that position,
As a result, the second color image is accurately aligned with the first color image and is transferred onto the surface of the transfer member 4 so as to be superimposed thereon. Thereafter, the transfer of the third and fourth color images to the transfer member 4 is similarly performed. Subsequently, the multicolor image on the surface of the transfer member 4 is collectively transferred onto the recording paper at the forward movement speed of the transfer member 4 as it is.

(3) Reciprocating (Quick Return) Method After the transfer of the first color image belt, the transfer member 4 is separated from the photoreceptor 1 to stop the forward movement, and at the same time, to return at high speed in the reverse direction. The first movement of the surface of the transfer member 4
The position of the leading end of the color image passes through the transfer equivalent position on the surface of the transfer member 4 in the reverse direction, and after moving a predetermined distance, stops and enters a standby state, and the second color image on the photoconductor 1 side When the leading end of the transfer member 4 reaches a predetermined position before the transfer position of the transfer member 4, the transfer member 4 is restarted in the forward movement direction, and the second color image is converted into the first color image on the surface of the transfer member 4. The image is transferred to the surface of the transfer member 4 under the condition of accurately overlapping, and thereafter, the third and fourth color images are transferred to the transfer member 4 in the same manner. To transfer the multicolor superimposed image on the surface of the transfer member 4 onto the recording paper at a time.

FIG. 2 shows an example of the operation of removing the extraneous matter from the surface of the transfer member 4 by the sweeper member 9, and this example includes the timing included in the pre-imaging preparation operation after the main switch is turned on. This is an operation example.

[0015]

The present invention is as described above. According to the first aspect of the present invention, a toner image for each color component is formed on an electrostatic latent image formed on the surface of a uniformly charged photoreceptor. A recording sheet having an image forming unit for forming an image, and a transfer member, transferring the toner image for each color component on the surface of the transfer member for each image formation to form one image, and moving in synchronization with the transfer member And a photoconductor cleaning unit and a transfer member cleaning unit for cleaning the residual toner images on the surfaces of the photoconductor and the transfer member, respectively, and a filming material attached to the surfaces of the photoconductor and the transfer member. Respectively, and a fur brush member and a sweeper member for removing the filming material from the surface of the transfer member by the sweeper member. Since the operation of removing the residual toner on the surface is performed, there is an effect that the residual toner does not adhere to the sweeper member and the ability to remove the filming substance does not decrease, and the surface of the transfer member by the sweeper member has an effect. During the operation of removing the filming substance, the operation of removing the filming substance from the surface of the photoreceptor by the fur brush member is performed. There is an effect that no reduction is caused. According to a second aspect of the present invention, in the first aspect of the invention, after the cleaning operation of the residual toner image on the surface of the transfer member by the transfer member cleaning unit is performed, the cleaning member of the transfer member cleaning unit is moved to the surface of the transfer member. The transfer member is reversed while contacting the recording paper, so that the fibrous paper powder component, which is one of the components contained in the recording paper, adheres to the transfer member that comes into contact with the recording paper in the transfer step, and is cleaned by the cleaning member. When cleaning the residual toner, there is an effect that the cleaning performance is not reduced by being sandwiched between the cleaning member and the surface of the transfer member. According to a third aspect of the present invention, in the first aspect, the sweeper member is formed of a brush roller, and the filming material on the surface of the transfer member removed by the brush roller is removed from the brush roller. Since the flicker member is provided in contact with the brush roller, when the sweeper member is formed of a brush roller, a part of the filming material removed by the brush roller adheres to the surface of the brush fiber of the brush roller and remains. Therefore, there is an effect that the filming material removing ability of the brush roller does not decrease. According to a fourth aspect of the present invention, in the first aspect of the present invention, an image forming section forms a toner image for each color component with respect to the electrostatic latent image formed on the surface of the uniformly charged photoconductor; A transfer member that transfers the toner image for each color component to the surface of the transfer member for each image formation to form an image, and transfers the image to recording paper that moves in synchronization with the transfer member; A photoreceptor cleaning unit and a transfer member cleaning unit for cleaning residual toner images on the surfaces of the photoreceptor and the transfer member, and a fur brush member for removing a filming substance attached to the surfaces of the photoreceptor and the transfer member, respectively. In the image forming apparatus including the sweeper member, the transfer member cleaning unit may perform the transfer by the transfer member cleaning unit before the operation of removing the filming material from the surface of the transfer member by the sweeper member. Since the operation of removing the residual toner image on the surface of the material is performed, the residual toner does not adhere to the sweeper member, the filming material removing ability does not decrease, and the sweeper member is configured by a brush roller, After removing the filming material on the surface of the transfer member by the brush roller, the brush roller is rotated in reverse while keeping the brush roller in contact with the surface of the transfer member, and then the brush roller is separated from the transfer member. When the brush roller is constituted by a roller, the brush roller does not always rotate in the same direction in a state in which the brush roller is in contact with the surface of the transfer member, and the brush fibers of the brush roller are rotated in a direction opposite to the rotation direction as time passes. The brush roller falls down in the direction and becomes hazy, a so-called bristle state, and the filming material removal ability of the brush roller is in the initial state Base and there is an effect that is not as reduced as time elapses. The invention according to claim 5 has an image forming unit for forming a toner image for each color component for an electrostatic latent image formed on the surface of a uniformly charged photoconductor, and a transfer member. A transfer unit that transfers the toner image for each color component to the surface of the transfer member for each image formation to form one image, and transfers the one image to recording paper that moves in synchronization with the transfer member; A photoconductor cleaning unit and a transfer member cleaning unit for cleaning the residual toner image on the surface of the member, respectively, and a fur brush member and a sweeper member for removing a filming substance attached to the surface of the photoconductor and the transfer member, respectively. In the image forming apparatus, before the operation of removing the filming material on the surface of the transfer member by the sweeper member, the residual toner image on the surface of the transfer member by the transfer member cleaning unit is provided. Since the removing operation is performed, the residual toner does not adhere to the sweeper member, the ability to remove the filming substance does not decrease, and the sweeper member is constituted by a brush roller, and the transfer member is formed on the surface of the transfer member. A first mode in which an image is rotated in a direction to transfer the image onto recording paper, and the brush roller is rotated in a direction opposite to a rotation direction of the transfer member; and a mode in which the image of the surface of the transfer member is transferred onto the recording paper. A second mode in which the brush roller is rotated in the opposite direction and the brush roller is rotated in a direction opposite to the rotation direction of the transfer member. When the transfer member is formed of an endless belt, the transfer member is wound around the brush member of the sweeper member when the sweeper member operates. In response to a force opposite to the attaching direction, that is, a rotation reaction force of the brush roller, the sweeper member is gradually moved in a direction orthogonal to the rotation direction of the transfer member, so that a so-called belt shift state does not occur, and the operation of the sweeper member does not occur. There is an effect that color misregistration does not occur at the time of subsequent multicolor multiple transfer.

[Brief description of the drawings]

FIG. 1 is a front view showing an arrangement of each part according to an embodiment of the present invention.

FIG. 2 is a flowchart of an example of an operation of the sweeper member according to the first embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 photoconductor 2 image forming unit 3 transfer unit 4 transfer member 5 belt transfer unit 6 photoconductor cleaning unit 7 transfer member cleaning unit 8 fur brush member 9 sweeper member 11 cleaning member 12 cleaning member 24 flicker member 27 paper transfer unit

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G03G 21/10-21/12 G03G 15/16-15/16 103 G03G 21/00 370-540 G03G 21/14

Claims (5)

(57) [Claims] An image forming section for forming a toner image for each color component for an electrostatic latent image formed on the surface of a uniformly charged photoreceptor, and a transfer member, the surface of the transfer member A transfer unit that transfers the toner image for each color component for each image formation into one image, and transfers the one image to recording paper that moves in synchronization with the transfer member; An image forming apparatus including a photoconductor cleaning unit and a transfer member cleaning unit for cleaning the residual toner image, respectively, and a fur brush member and a sweeper member for removing a filming substance attached to the surface of the photoconductor and the transfer member, respectively. Before the operation of removing the filming material on the surface of the transfer member by the sweeper member, the operation of removing the residual toner image on the surface of the transfer member by the transfer member cleaning unit is performed. We, filming removing device in the image forming apparatus characterized by the operation of removing the filming material on the surface of the photoconductor by the fur brush member during the operation of removing the filming material on the surface of the transfer member by sweeper member is performed. 2. The transfer member cleaning unit according to claim 1, wherein the transfer member is rotated in a reverse direction while the cleaning member of the transfer member cleaning unit is in contact with the surface of the transfer member. Item 2. A filming removing device in the image forming apparatus according to Item 1. 3. A sweeper member comprising a brush roller, and a flicker member abutting on the brush roller for removing the filming substance on the surface of the transfer member removed by the brush roller from the brush roller. 2. A filming removing device in the image forming apparatus according to 1. 4. An image forming section for forming a toner image for each color component with respect to an electrostatic latent image formed on the surface of a uniformly charged photoreceptor, and a transfer member. A transfer unit that transfers the toner image for each color component for each image formation into one image, and transfers the one image to recording paper that moves in synchronization with the transfer member; An image forming apparatus including a photoconductor cleaning unit and a transfer member cleaning unit for cleaning the residual toner image, respectively, and a fur brush member and a sweeper member for removing a filming substance attached to the surface of the photoconductor and the transfer member, respectively. Before the operation of removing the filming material on the surface of the transfer member by the sweeper member, the operation of removing the residual toner image on the surface of the transfer member by the transfer member cleaning unit is performed. The sweeper member is constituted by a brush roller, and after removing the filming material on the surface of the transfer member by the brush roller, the brush roller is rotated in reverse while the brush roller is in contact with the surface of the transfer member. The filming removing device in the image forming apparatus according to claim 1, wherein the filming removing device is separated from the transfer member. 5. An image forming section for forming a toner image for each color component for an electrostatic latent image formed on the surface of a uniformly charged photoreceptor, and a transfer member. A transfer unit that transfers the toner image for each color component for each image formation into one image, and transfers the one image to recording paper that moves in synchronization with the transfer member; An image forming apparatus including a photoconductor cleaning unit and a transfer member cleaning unit for cleaning the residual toner image, respectively, and a fur brush member and a sweeper member for removing a filming substance attached to the surface of the photoconductor and the transfer member, respectively. Before the operation of removing the filming material on the surface of the transfer member by the sweeper member, the operation of removing the residual toner image on the surface of the transfer member by the transfer member cleaning unit is performed. During the operation of removing the filming material on the surface of the transfer member by the sweeper member, the operation of removing the filming material on the surface of the photoreceptor by the fur brush member is performed, and the sweeper member is constituted by a brush roller, and the transfer member is transferred. A first mode in which the image on the surface of the transfer member is rotated in a direction in which the image on the surface of the transfer member is transferred, and the brush roller is rotated in a direction opposite to the rotation direction of the transfer member; A second mode in which the brush roller is rotated in a direction opposite to the direction in which the image is transferred onto the paper, and the brush roller is rotated in a direction opposite to the rotation direction of the transfer member.