JP2009053416A - Cleaning device, developing device, and image forming apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleaning device, wherein the occurrence of an abnormal image having void is suppressed. <P>SOLUTION: The cleaning device 30 includes: a cleaning blade 6 which scrapes residual transfer toner 15 stuck to the surface of photoreceptor 1; a discharge spiral coil 10 which discharges the residual transfer toner 15 stored in a recovery chamber; and a cleaning entrance seal 11 by which the residual transfer toner 15 which is scattered from a cleaning case 13 accommodating these components and from the photoreceptor 1 is prevented from scattering, wherein (1) a plate-like swing member 17 is disposed on the back of the leading end of the cleaning blade 6 so as to incline toward the discharge spiral coil 10 and (2) the swing member 17 is fixed to the cleaning blade 6 via a mounting member 20 so that the swing member 17 is swung by deformation of the leading end of the cleaning blade 6 which is caused by the slide resistance of the cleaning blade 6 which is generated as the photoreceptor 1 rotates. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cleaning device used in an electrophotographic image apparatus such as a copying machine, a printer, and a facsimile machine. More particularly, the cleaning is performed by pulverizing a toner aggregate scraped by a cleaning blade so as to be easily dropped into a discharge spiral coil. The present invention relates to an apparatus, a developing device having the cleaning device, and an image forming apparatus having the developing device.

  Cleaning devices used in electrophotographic image apparatuses such as copying machines, printers, and facsimiles are known in the art (see Patent Documents 1 and 2). FIG. 9 is a sectional view of a conventional developing device, and FIG. 10 is a partially enlarged explanatory view thereof. As shown in FIGS. 9 and 10, the conventional cleaning device includes a toner hopper 128 that contains toner 108, an agitator 109 that rotates and agitates the toner 108 in the toner hopper 128, and a toner 108. A transport screw 107 that transports a fixed amount to the developing chamber 127 by paddle rotation, a function that abuts on the outer periphery of the developing roller 102 and frictionally charges the toner 108 by rotation, and a function that removes residual toner 108 on the surface of the developing roller 102. A developing roller 102 that is disposed between the supply roller 103 and the outer periphery of the photoconductor 101 so as to attract the frictionally charged toner 108 to the surface, and a toner that is carried on the developing roller 102 and conveyed. A developing blade 129 for regulating the amount of 108, and a developing case 112 for holding and storing these members, A photosensitive member 101 that is a latent image carrier, a charging roller 104 that is in contact with the outer periphery of the photosensitive member 101 and applies a uniform charging reversal potential to the photosensitive member 101 by contact charging, and a charging roller 104 that is uniformly applied to the photosensitive member 101. A pressurizing spring 105 to be contacted and an LD light 130 for resetting the photosensitive member potential of the printing unit are included.

  Due to the potential difference between the developing roller 102 and the photoconductor 101, the toner 108 is blown only from the developing roller 102 to the printing portion of the photoconductor 101 and is adsorbed to form a toner image 108 on the photoconductor 101. The toner image 108 formed on the photoreceptor 101 is transferred onto the recording paper 114 by the transfer roller 125. However, since the transfer efficiency is not 100%, the untransferred toner 115 remains on the photoreceptor 101 after the transfer. The untransferred toner 115 is moved to the collection chamber 126 by the rotation conveyance of the photosensitive member 101. Therefore, the edge of the cleaning blade 106 formed of an elastic member is brought into sliding contact with the outer periphery of the photoconductor 101 to scrape off the transfer residual toner 115 on the photoconductor 101. The waste toner 116 thus scraped off is carried out of the developing device by the rotational conveyance of the discharge spiral coil 110 disposed in the vicinity of the photosensitive member 101. The cleaning inlet seal 111 is affixed to the cleaning case 113 so as to abut on the photoconductor 101 to suppress scattering of the waste toner 116 in the collection chamber 126.

  In the developing device including the cleaning case 113 that holds and accommodates the members constituting the cleaning device described above, the amount of wax (not shown) of the toner 108 may be reduced in order to ensure the cleaning performance of the cleaning blade 106. However, when the wax amount of the toner 108 is reduced in this way, the fluidity of the toner 108 is lowered, and there is a problem that the waste toner 116 that has been cleaned accumulates in the vicinity of the cleaning inlet seal 111 and becomes the aggregated toner 124. . The aggregation toner 124 is aggregated at two locations (a) in the vicinity of the photosensitive member 101 and (b) in the vicinity of the groove of the discharge spiral coil 110. The agglomerated toner 124 (aggregated portion (a)) is always in contact with the surface of the photoconductor 101, and the wax exuded from the agglomerated toner 124 is thinly fixed to the photoconductor 101 by the frictional heat of the photoconductor 101. Since the thin film-fixed wax is a thin film, it is difficult to be scraped off even by the cleaning blade 106, and normal charging and LD light writing 130 cannot be performed. There was a problem that an image defect occurred.

Such image defects are more likely to occur as the usage environment is higher (environmental temperature: about 30 ° C.). Further, when the accumulated toner 124 (aggregated portions (a) and (b)) suddenly collapses, the transport capacity of the discharge spiral coil 110 is exceeded, so that a transport path, that is, occurs. Due to the increase in rotational load, the discharge spiral coil 110 is damaged, and the aggregated toner 124 is increased, thereby promoting a white spot abnormality image. Further, when the width of the transfer residual toner 115 is wide, it becomes a rod-like waste toner, which is scraped off from the photosensitive member 101 and accumulates by dropping, so that there is a problem that the toner is likely to become the aggregated toner 124.
Japanese Patent Laid-Open No. 2003-302824 Japanese Patent No. 3589386

  The present invention aims to solve this problem.

  That is, according to the present invention, waste toner cleaned by the cleaning blade is prevented from accumulating in the vicinity of the cleaning inlet seal and becoming aggregated toner, and is formed on the surface of the photoreceptor by the wax exuded from the aggregated toner. An object of the present invention is to provide a cleaning device that suppresses the occurrence of a white spot abnormality image by eliminating the generation of a thin film, a developing device having the cleaning device, and an image forming device having the developing device.

In order to achieve the above object, the invention described in claim 1 is a cleaning blade that slides on the outer peripheral surface of the photoconductor to scrape off transfer residual toner adhering to the surface of the photoconductor, and scrapes with the cleaning blade. A collection chamber for storing the transfer residual toner taken, a discharge spiral coil for discharging the transfer residual toner stored in the recovery chamber, a cleaning case for storing these components, and a scattering case from the cleaning case and the photoconductor A cleaning inlet seal that prevents the transfer residual toner from being scattered,
(A) a plate-like rocking member is disposed behind the front end of the cleaning blade so as to incline toward the discharge spiral coil; and
(B) the cleaning member via the mounting member so that the swinging member swings due to the deformation of the tip of the cleaning blade that occurs based on the sliding resistance of the cleaning blade that occurs as the photosensitive member rotates. The cleaning device is fixed to a blade.

  The invention described in claim 2 is characterized in that, in the invention described in claim 1, the swinging member is in contact with the photosensitive member.

  The invention described in claim 3 is characterized in that, in the invention described in claim 1 or 2, the swing member is divided into two or more than three.

  The invention described in claim 4 is the invention described in any one of claims 1 to 3, wherein the convex inclined member is inclined toward the discharge spiral coil on the surface of the swinging member. It is characterized by being provided as follows.

  The invention described in claim 5 is characterized in that, in the invention described in claim 4, the convex inclined members are alternately arranged toward the discharge spiral coil.

  The invention described in claim 6 is the invention described in any one of claims 1 to 5, further comprising a plate-like lower swing member between the discharge spiral coil and the cleaning case. It is characterized by that.

  According to a seventh aspect of the present invention, there is provided a developing device including the cleaning device according to any one of the first to sixth aspects.

  According to an eighth aspect of the present invention, there is provided an image forming apparatus comprising the developing device according to the seventh aspect.

  According to the first aspect of the present invention, the cleaning blade that contacts the outer peripheral surface of the photoconductor and scrapes off the transfer residual toner that adheres to the surface of the photoconductor, and the transfer residual toner that is scraped off by the cleaning blade. A recovery chamber for storing the toner, a discharge spiral coil for discharging the transfer residual toner stored in the recovery chamber, a cleaning case for storing these components, and transfer residual toner scattered from the cleaning case and the photosensitive member. In a cleaning device having a cleaning inlet seal for preventing scattering, (a) a plate-like rocking member is disposed behind the front end of the cleaning blade so as to be inclined toward the discharge spiral coil, and (B) The swinging member is based on the sliding resistance of the cleaning blade that occurs as the photosensitive member rotates. Since the cleaning blade is fixed to the cleaning blade via an attachment member so as to swing due to the deformation of the tip of the cleaning blade, the waste toner can be quickly dropped onto the discharge spiral coil. The waste toner cleaned by the blade is prevented from accumulating in the vicinity of the cleaning inlet seal and becoming aggregated toner, and the generation of a thin film formed on the surface of the photoreceptor due to the wax exuded from the aggregated toner is eliminated. Thus, it is possible to provide a cleaning device that suppresses the occurrence of white spots abnormal images.

  According to the second aspect of the present invention, since the swinging member is in contact with the photosensitive member, the swinging member in contact with the photosensitive member is always swung during rotation of the photosensitive member. The waste toner is always pulverized, and even during continuous printing, the rod-like waste toner is always crushed to make it easier to flow, and the crushed rod-like waste toner is reliably conveyed to the discharge spiral coil to be formed on the photoreceptor. Therefore, it is possible to provide a cleaning device that eliminates the occurrence of a thin film due to wax exuding from the agglomerated toner and further suppresses the occurrence of an abnormal white image and prevents the discharge spiral coil from being damaged due to the path.

  According to the third aspect of the present invention, since the swing member is divided into two or three or more parts, the swing load of the swing member can be reduced. Formed on the photoconductor by increasing the rocking speed of the moving member to pulverize the rod-like waste toner to make it easier to flow, and reliably transport the crushed rod-like waste toner, ie, waste toner, to the discharge spiral coil Accordingly, it is possible to provide a cleaning device that eliminates the occurrence of a thin film due to wax exuding from the agglomerated toner, further suppresses the occurrence of an abnormal white spot image, and prevents the discharge spiral coil from being damaged by the path.

  According to the fourth aspect of the present invention, since the convex inclined member is provided on the surface of the swing member so as to be inclined toward the discharge spiral coil, the slip member is slipped on the surface of the swing member. A thin film of wax that exudes from the agglomerated toner formed on the photoreceptor by pulverizing the falling rod-like waste toner to make it easier to flow and reliably conveying the crushed rod-like waste toner to the discharge spiral coil Therefore, it is possible to provide a cleaning device that further suppresses the occurrence of white spot abnormality images and prevents the discharge spiral coil from being damaged by the path.

  According to the fifth aspect of the present invention, since the convex inclined members are alternately arranged toward the discharge spiral coil, the rod-like waste toner that has slipped is alternately directed toward the discharge spiral coil. By making the time to collide with the convex inclined member disposed on the surface longer and making it easier to flow, the pulverized rod-shaped waste toner, that is, the waste toner is reliably conveyed to the discharge spiral coil, thereby being a photosensitive member. To provide a cleaning device that eliminates the occurrence of a thin film due to wax exuding from the agglomerated toner formed thereon, further suppresses the occurrence of abnormal white-out images, and prevents the discharge spiral coil from being damaged by the path. it can.

  According to the sixth aspect of the present invention, since the plate-like lower swinging member is provided between the discharge spiral coil and the cleaning case, the aggregated toner near the cleaning inlet seal is removed from the lower part. By reliably pulverizing with the swinging member and transporting the pulverized aggregated toner to the discharge spiral coil, there is no occurrence of a thin film due to wax exuding from the aggregated toner formed on the photosensitive member. It is possible to provide a cleaning device that further suppresses the occurrence of an abnormal image and prevents the discharge spiral coil from being damaged by the path.

  According to the seventh aspect of the present invention, since the developing device is equipped with the cleaning device according to any one of the first to sixth aspects, the wax exudes from the agglomerated toner formed on the photoreceptor. Thus, it is possible to provide a developing device that eliminates the occurrence of a thin film due to the above and further suppresses the occurrence of an abnormal white image and prevents the discharge spiral coil from being damaged by the path.

  According to the eighth aspect of the present invention, since the image forming apparatus is equipped with the developing device according to the seventh aspect, generation of a thin film due to wax exuding from the aggregated toner formed on the photosensitive member is eliminated. Thus, it is possible to provide an image forming apparatus that further suppresses the occurrence of white spot abnormal images and prevents the discharge spiral coil from being damaged due to the path.

  FIG. 1 is a sectional view of a cleaning apparatus showing an embodiment of the present invention. FIG. 2 is an explanatory view of the operation of the swinging member in the cleaning apparatus according to the embodiment of the present invention. FIG. 2A shows a state in which the swinging member swings in the direction of arrow a of the photosensitive member. (B) shows a state in which the swing member swings in the direction of arrow b. FIG. 3 is an explanatory diagram of a swing member having a convex inclined member provided on the surface. FIG. 4 is a view on A in FIG. FIG. 5 is an explanatory diagram of a swing member in which convex inclined members are provided alternately on the surface toward the discharge spiral. FIG. 6 is a diagram for explaining the operation of the swinging member in the cleaning apparatus according to another embodiment of the present invention. FIG. 6A shows a state in which the swinging member is in contact with the photosensitive member. (B) shows the state where the swinging member swings in the direction of arrow a of the photosensitive member, and (c) shows the state where the swinging member swings in the direction of arrow b. FIG. 7 shows a swing member divided into two parts. FIG. 8 is a cross-sectional view of a cleaning device having a lower swing member on the surface between a discharge spiral coil and a cleaning case, showing another embodiment of the present invention.

  In FIG. 1, 30 is a cleaning device. The cleaning device 30 slidably contacts the outer peripheral surface of the photosensitive member 1 to scrape off the transfer residual toner 15 attached to the surface of the photosensitive member 1, and the transfer residual toner 15 scraped off by the cleaning blade 6. A collection chamber 26 to be accommodated, a discharge spiral coil 10 for discharging the transfer residual toner 15 accommodated in the collection chamber 26, a cleaning case 13 for accommodating these components, and the scattering from the cleaning case 13 and the photoreceptor 1. And a cleaning inlet seal 11 for preventing the transfer residual toner 15 from being scattered. In the cleaning device 30, (a) the plate-like rocking member 17 is disposed behind the front end of the cleaning blade 6 so as to be inclined toward the discharge spiral coil 10, and The swinging member 17 is interposed via the mounting member 20 so as to swing due to the deformation of the tip of the cleaning blade 6 caused based on the sliding resistance of the cleaning blade 6 generated with the rotation of the photosensitive member 1. It is fixed to the cleaning blade 6.

  As shown in FIG. 2A, when the photosensitive member 1 is driven, the tip of the cleaning blade 6 is deformed by the sliding resistance of the cleaning blade 6. Thus, when the tip of the cleaning blade 6 is deformed by the sliding resistance of the cleaning blade 6, the swinging member 17 fixed to the tip of the cleaning blade 6 via the mounting member 20 is also in the direction of arrow a. Since it swings, the waste toner is dropped to the discharge spiral coil 10. As shown in FIG. 2B, when the photosensitive member 1 is stopped, the swing member 17 swings in the direction of arrow b by its elastic force and returns to its original position.

  Therefore, the cleaning blade 6 that slides on the outer peripheral surface of the photosensitive member 1 and scrapes the transfer residual toner 15 attached to the surface of the photosensitive member 1 and the recovery toner 15 that contains the transfer residual toner 15 scraped off by the cleaning blade 6 are accommodated. Chamber 26, discharge spiral coil 10 that discharges transfer residual toner 15 accommodated in recovery chamber 26, cleaning case 13 that accommodates these components, and transfer that is scattered from cleaning case 13 and photoconductor 1. In the cleaning device 30 having the cleaning inlet seal 11 that prevents the residual toner 15 from scattering, (a) the cleaning blade 6 is configured so that the plate-like swing member 17 is inclined toward the discharge spiral coil 10. And (b) the swinging member 17 is moved along with the rotation of the photosensitive member 1. When the cleaning blade 6 is fixed to the cleaning blade 6 via the mounting member 20 so as to be swung by deformation of the tip of the cleaning blade 6 generated based on the sliding resistance of the cleaning blade 6 generated in this manner, the waste toner 16 is removed. The toner can be quickly dropped onto the discharge spiral coil 10, so that the waste toner 16 cleaned by the cleaning blade 6 accumulates in the vicinity of the cleaning inlet seal 11 and becomes agglomerated toner (see 124 in FIG. 10). By preventing the occurrence of a thin film formed on the surface of the photoconductor due to the wax exuding from the aggregated toner, the cleaning device 30 can be provided in which the occurrence of an abnormal white spot image is suppressed.

  As shown in FIG. 6, in the present invention, the swing member 17 is preferably in contact with the photoreceptor 1. As shown in FIGS. 1 and 6, the rocking member 17 is in contact with the photoreceptor 1 via a mounting member 20 on the back side of the tip portion of the cleaning blade 6. As shown in FIG. 6, the swing member 17 is in contact with the photoreceptor 1 (a), is swung in the direction of the arrow a of the photoreceptor 1 (b), and Then, the state (c) swinging in the direction of the arrow b is sequentially returned to the original state (a). As described above, when the swing member 17 is in contact with the photoreceptor 1, the swing member 17 swings against the sliding resistance of the photoreceptor 1, and the swing member 17 It will be restored by the elastic force.

  Therefore, when the swinging member 17 is in contact with the photosensitive member 1, the swinging member 17 in contact with the photosensitive member 1 is always swung during the rotation of the photosensitive member 1, and the waste toner 16 is discharged. By always pulverizing and continuously printing the rod-like waste toner to make it easier to flow, the crushed rod-like waste toner, that is, the waste toner 16 is surely conveyed to the discharge spiral coil 10, thereby allowing the photoreceptor 1. The occurrence of a white spot abnormality image is further suppressed by eliminating the generation of a thin film due to wax exuding from the agglomerated toner (refer to 124 in FIG. 10) formed on the top, and the discharge spiral coil 10 by the path clogging. Therefore, it is possible to provide the cleaning device 30 that can prevent the damage.

  In the present invention, the rocking member 17 is preferably divided into two or three or more. FIG. 7 shows oscillating members 17 and 17 that are divided in two so that convex inclined members 18 and 19 are alternately provided so as to incline toward the discharge spiral coil 10. As long as it is not contrary to the purpose, it may be divided into three or more. Thus, if the rocking member 17 is divided into two or three or more parts, the rocking load of the rocking member 17 can be reduced. The rod-shaped waste toner is pulverized at a higher speed to facilitate flow, and the crushed rod-shaped waste toner, that is, the waste toner 16 is reliably conveyed to the discharge spiral coil 10 to be formed on the photoreceptor 1. Further, the occurrence of a white-out abnormal image that has exuded from the agglomerated toner (see 124 in FIG. 10) is eliminated by the generation of a thin film due to wax, and the discharge spiral coil 10 is also prevented from being damaged by a path. The cleaning device 30 can be provided.

  As shown in FIGS. 3 and 4, in the present invention, the convex inclined member 18 is preferably provided on the surface of the swing member 17 so as to be inclined toward the discharge spiral coil 10. ing. As described above, when the convex inclined member 18 is provided on the surface of the swinging member 17 so as to be inclined toward the discharge spiral coil 10, the rod-like shape slipped down on the surface of the swinging member 17. The waste toner is pulverized to make it easier to flow, and the crushed rod-shaped waste toner is reliably conveyed to the discharge spiral coil 10 to form the agglomerated toner (see 124 in FIG. 10). .), The cleaning device 30 can be provided which eliminates the occurrence of a thin film due to wax and suppresses the occurrence of an abnormal white image and prevents the discharge spiral coil 10 from being damaged due to the path.

  As shown in FIGS. 5 and 6, in the present invention, the convex inclined members 18 and 19 are alternately arranged toward the discharge spiral coil 10. For a longer time to collide with the convex inclined members 18, 19 arranged alternately toward the discharge spiral coil 10, making it easier to flow, and reliably discharging the crushed rod-shaped waste toner 10, the generation of an image with abnormal white spots is further suppressed by eliminating the generation of a thin film due to wax exuding from the agglomerated toner (see 124 in FIG. 10) formed on the photoreceptor 1. Moreover, it is possible to provide the cleaning device 30 that prevents the discharge spiral coil 10 from being damaged by the path.

  As shown in FIG. 8, in the invention, a plate-like lower swing member 22 is provided between the discharge spiral coil 10 and the cleaning case 13. In FIG. 8, the plate-like lower swing member 22 is fixed to the back surface near the lower end of the swing member 17 in a direction perpendicular to the swing member 17. Thus, when the lower swing member 22 is provided between the discharge spiral coil 10 and the cleaning case 13, the agglomerated toner in the vicinity of the cleaning inlet seal 11 (see 124 in FIG. 10). The wax is crushed by the lower swinging member 22 and the pulverized aggregated toner is reliably conveyed to the discharge spiral coil 10, so that the wax exuded from the aggregated toner is formed on the photoreceptor 1. Therefore, it is possible to provide a cleaning device 30 that eliminates the occurrence of a thin film due to the occurrence of the above-described problem and further suppresses the occurrence of a white spot abnormality image and prevents the discharge spiral coil 10 from being damaged due to the path.

  The developing device of the present invention is equipped with the cleaning device 30 according to any one of claims 1 to 6. As described above, in the developing device equipped with the cleaning device 30 according to any one of claims 1 to 6, the aggregated toner formed on the photosensitive member 1 (see 124 in FIG. 10). It is possible to provide a developing device that eliminates the occurrence of a thin film due to the wax exuding and further suppresses the occurrence of an abnormal white defect image and prevents the discharge spiral coil 10 from being damaged due to the path.

  An image forming apparatus according to the present invention includes the developing device according to claim 7. As described above, in the image forming apparatus equipped with the developing device according to claim 7, the wax oozes from the aggregated toner (see 124 in FIG. 10) formed on the photosensitive member 1. It is possible to provide an image forming apparatus that eliminates the occurrence of a thin film and further suppresses the occurrence of an abnormal white image and prevents the discharge spiral coil 10 from being damaged due to a path.

It is sectional drawing of the cleaning apparatus which shows one embodiment of implementation of this invention. FIG. 6 is an explanatory diagram of the operation of the swing member in the cleaning device showing an embodiment of the present invention, wherein (a) shows a state in which the swing member swings in the direction of arrow a of the photoconductor; (B) shows a state in which the swinging member swings in the direction of arrow b. It is explanatory drawing of the rocking | fluctuation member by which the convex-shaped inclination member was provided in the surface. It is A view in FIG. It is explanatory drawing of the rocking | fluctuation member by which the convex-shaped inclined member was alternately provided in the surface toward the discharge spiral. It is operation | movement explanatory drawing of the rocking | swiveling member in the cleaning apparatus which shows other embodiment of this invention, Comprising: (a) shows the state which the rocking | fluctuating member is contact | abutting to the photoreceptor, (b) Shows a state in which the swinging member swings in the direction of arrow a of the photosensitive member, and (c) shows a state in which the swinging member swings in the direction of arrow b. The swing member is divided into two. It is sectional drawing of the cleaning apparatus which has one lower swing member between the discharge spiral coil and the cleaning case which shows other embodiment of this invention. It is sectional drawing of the conventional image development apparatus. FIG. 10 is a partially enlarged explanatory view of FIG. 9.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Photoconductor 6 Cleaning blade 10 Discharge spiral coil 11 Cleaning inlet seal 13 Cleaning case 15 Transfer residual toner 16 Waste toner 20 Attachment member 30 Cleaning device

Claims (8)

A cleaning blade that slidably contacts the outer peripheral surface of the photoconductor and scrapes off transfer residual toner adhering to the surface of the photoconductor, a recovery chamber that stores transfer residual toner scraped off by the cleaning blade, and a storage chamber A cleaning spiral coil that discharges the transferred residual toner, a cleaning case that accommodates these components, and a cleaning inlet seal that prevents scattering of the residual transfer toner scattered from the cleaning case and the photosensitive member In the device
(A) a plate-like rocking member is disposed behind the front end of the cleaning blade so as to incline toward the discharge spiral coil; and
(B) the cleaning member via the mounting member so that the swinging member swings due to the deformation of the tip of the cleaning blade that occurs based on the sliding resistance of the cleaning blade that occurs as the photosensitive member rotates. A cleaning device fixed to a blade.   The cleaning apparatus according to claim 1, wherein the swing member is in contact with the photoconductor.   The cleaning device according to claim 1, wherein the swing member is divided into two or more than three.   The cleaning device according to claim 1, wherein a convex inclined member is provided on the surface of the swinging member so as to be inclined toward the discharge spiral coil.   The cleaning device according to claim 4, wherein the convex inclined members are alternately arranged toward the discharge spiral coil.   The cleaning apparatus according to claim 1, further comprising a plate-like lower swinging member between the discharge spiral coil and the cleaning case.   A developing device comprising the cleaning device according to claim 1.   An image forming apparatus comprising the developing device according to claim 7.

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