JP2001117457A - Image forming device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image forming device forming an image of a high quality by preventing forming of an abnormal image in spite of preventing accumulation of residual toner mixed with paper powder, etc., at the edge part of a cleaning blade by adding of an impact to the cleaning blade. SOLUTION: This device consists of a rotatably supported image carrier 1, a transferring means 2 for transferring a toner image formed on the carrier 1 to an object to be transferred (P), a residual toner sticking surface 3 to which residual toner (t) remaining after transferring the toner image to the object (P) by the means 2 is stuck, a cleaning blade 4 for removing the toner (t) remaining after being stuck to the surface 3 in contact with it, a cleaning blade driving means 5 for reciprocating the blade 4 in the direction of the rotary axis of the surface 3, and a reciprocation regulating means 6 for regulating reciprocation of the means 5.

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 an image forming apparatus which transfers a toner image formed on an image bearing member to a transfer receiving member and removes the residual toner attached to the image bearing member. The present invention relates to an image forming apparatus such as a copying machine, a facsimile machine, a printer, or a multifunction machine for forming the image forming apparatus.

[0002]

2. Description of the Related Art A conventional image forming apparatus has a cleaning blade for transferring a toner image formed on an image carrier to recording paper and then removing toner remaining on the image carrier. It is known that the cleaning blade repeats reciprocating movement in the axial direction of the image carrier while abutting on the image carrier, and applies an impact force to prevent the accumulation of residual toner containing paper dust and the like at the edge of the cleaning blade. (See Japanese Patent Application Laid-Open No. 6-149139). However, the impact force applied to the cleaning blade of the conventional image forming apparatus, which prevents the accumulation of residual toner containing paper dust or the like at the edge of the cleaning blade, is transmitted to the photoconductor at the time of exposure and disturbs the electrostatic latent image. If it is transmitted to the photoreceptor at the time of transfer, the toner image becomes a blurred image,
When a hard disk of an image storage device is used, when information is written and stored, a system error due to poor writing and storage, an abnormal image due to erroneously stored image information is formed due to a poor writing, and the quality of a formed image is degraded. Then, a problem occurred.

[0003]

The impact force applied to the cleaning blade in the image forming apparatus, which prevents the accumulation of residual toner containing paper dust and the like at the edge of the cleaning blade, is transmitted to the photoconductor at the time of exposure, and the electrostatic force is reduced. When the latent image is disturbed, the image is transferred to the photoconductor at the time of transfer and the toner image is disturbed, and the toner image is disturbed. However, there is a problem that an abnormal image or the like is formed by the image information stored in advance and the quality of the formed image is deteriorated. Therefore, an object of the present invention is to solve such a problem.
That is, even if an impact force is applied to the cleaning blade to prevent the accumulation of residual toner in which paper dust or the like is mixed at the edge of the cleaning blade, the electrostatic latent image at the time of exposure and the toner image at the time of transfer are disturbed. System error due to improper writing and saving at the time of writing and saving of blurred image, image storage information,
It is an object of the present invention to provide an image forming apparatus capable of preventing an abnormal image from being formed due to erroneously stored image information due to a writing failure and forming a high-quality image.

[0004]

In order to achieve the above object, according to the first aspect of the present invention, a toner image formed on an image carrier is adhered and remains after being transferred to a transfer body. In an image forming apparatus for forming an image by removing residual toner, a rotatably supported image carrier, a transfer unit for transferring a toner image formed on the image carrier to a transfer object, and the transfer device A toner adhering surface to which residual toner remaining after the toner image is transferred to the transfer member by the means, a cleaning blade for contacting and removing the residual toner adhering to the residual toner adhering surface, and the cleaning blade Cleaning blade driving means for reciprocatingly driving the blade in the direction of the rotation axis of the residual toner adhering surface; and reciprocating drive restricting means for restricting reciprocal driving of the cleaning blade driving means. The most important feature that Ranaru an image forming apparatus. The present invention of claim 2 is the invention of claim 1
In the image forming apparatus described in the above, the residual toner adhering surface,
The main feature is that the image forming apparatus is an upper surface of a photoconductor on which a latent image is formed by exposure means. According to a third aspect of the present invention, in the image forming apparatus according to the first or second aspect, the residual toner adhering surface is an image forming apparatus that is an upper surface of a conveying body that conveys the transfer target. . According to a fourth aspect of the present invention, in the image forming apparatus of the first, second or third aspect, the residual toner adhering surface forms a toner image between the toner image formed on the upper surface of the photoreceptor and the image to be transferred to the transfer target. The main feature is that the image forming apparatus is the upper surface of the intermediate transfer member that carries the intermediate. According to a fifth aspect of the present invention, in the image forming apparatus according to the first, second, third or fourth aspect, the reciprocating drive restricting means comprises a clutch for intermittently reciprocating driving force for reciprocating driving of the cleaning blade driving means. The main feature is that it is a device. According to a sixth aspect of the present invention, in the image forming apparatus according to the first, second, third, fourth, or fifth aspect, the reciprocating drive restricting means drives the cleaning blade while the exposing means exposes the image carrier. The main feature is that the image forming apparatus regulates reciprocal driving of the means.

The present invention of claim 7 is based on claims 1, 2, 3,
In the image forming apparatus described in 4, 5 or 6, the reciprocating drive restricting means is an image forming apparatus for restricting reciprocating driving of the cleaning blade driving means while the transfer means transfers the toner image to the transfer object. The main feature is that there is.
According to an eighth aspect of the present invention, in the image forming apparatus according to the first, second, third, fourth, fifth, sixth, or seventh aspect, the reciprocating drive restricting means writes and stores the image information in the image information storing means. The main feature is that the image forming apparatus controls the reciprocation of the cleaning blade driving unit during the operation. The ninth aspect of the present invention is the first aspect of the present invention.
Alternatively, in the image forming apparatus described in Item 8, the main feature is that the reciprocating drive restricting means is an image forming apparatus that releases the restriction for restricting the reciprocating drive of the cleaning blade driving means. The invention according to claim 10 is the invention according to claims 1, 2, 3,
In the image forming apparatus described in 4, 5, 6, 7, 8 or 9, the reciprocating drive restricting unit releases the restriction for restricting the reciprocating drive of the cleaning blade driving unit by detecting the jam clearance of the jam detecting unit. The main feature is that it is a device. According to an eleventh aspect of the present invention, in the image forming apparatus according to any one of the first to tenth aspects, the reciprocating drive restricting unit restricts the reciprocating drive of the cleaning blade driving unit by detecting the end of the image forming operation by the image forming operation detecting unit. The main feature is that the image forming apparatus cancels the regulation. According to a twelfth aspect of the present invention, in the image forming apparatus according to any one of the first to eleventh aspects, the reciprocating drive restricting unit releases the restriction for restricting the reciprocating drive of the cleaning blade driving unit by detecting the warm-up of the fixing unit. The main feature is that it is a device.

[0006]

According to the first aspect of the present invention, in the image forming apparatus, the toner image formed on the rotatably supported image carrier is transferred to the transfer member by the transfer means for transferring the toner image to the transfer member. The cleaning blade for reciprocatingly driving the cleaning blade, which is attached to the residual toner adhering surface to which the residual toner adheres, and abuts and removes the remaining residual toner in the rotation axis direction of the residual toner adhering surface, is reciprocated. Even if an image is formed while being regulated by the drive regulating means, and an impact force due to reciprocating drive is applied to the cleaning blade to prevent the accumulation of residual toner containing paper dust and the like at the edge of the cleaning blade, an abnormal condition may occur. An image forming apparatus capable of preventing image formation and performing high-quality image formation can be provided. According to claim 2, residual toner remaining after the toner image is transferred to the transfer object by the transfer means for transferring the toner image formed on the rotatably supported image carrier to the transfer object,
A cleaning blade drive for reciprocatingly driving a cleaning blade for contacting and removing the residual toner adhered and remaining on the upper surface of the photoreceptor on which the latent image is formed by the exposure means in the rotation axis direction of the residual toner adhered surface. The reciprocating drive of the means is controlled by a reciprocating drive restricting means to form an image, and an impact force by the reciprocating drive is applied to the cleaning blade on the upper surface of the photoreceptor on which the latent image is formed by the exposing means. An image forming apparatus capable of preventing the formation of an abnormal image and forming a high-quality image even if the accumulation of residual toner mixed with paper dust or the like is prevented.

According to a third aspect of the present invention, residual toner remaining after the toner image is transferred to the transfer member by the transfer means for transferring the toner image formed on the rotatably supported image carrier to the transfer member. A cleaning blade driving means for reciprocatingly driving a cleaning blade for contacting and removing residual toner adhered and remaining on the upper surface of the transport belt for transporting the transfer-receiving member (P), in the rotation axis direction of the residual toner adhered surface; The reciprocating drive is controlled by the reciprocating drive restricting means to form an image, and an impact force is applied by a reciprocating drive to the cleaning blade on the upper surface of the transporting body that transports the transfer object, so that paper dust is applied to the edge of the cleaning blade. It is possible to provide an image forming apparatus that can prevent the formation of an abnormal image and perform high-quality image formation even if the accumulation of residual toner mixed with the like is prevented. To. According to a fourth aspect of the present invention, the residual toner remaining after the toner image is transferred to the transfer body by the transfer unit that transfers the toner image formed on the rotatably supported image carrier to the transfer body, A cleaning blade that abuts on the upper surface of the intermediate transfer member that carries the toner image in between the toner image formed on the upper surface of the photoreceptor and the transferred image on the intermediate transfer member, and removes the remaining toner by contact A reciprocating drive restricting device controls a reciprocating drive of a cleaning blade driving unit that reciprocates in a direction of a rotation axis of the reciprocating driving unit so as to form an image, and transfers the toner image formed on the upper surface of the photoreceptor to the transfer target. Applying an impact force by reciprocating drive to the cleaning blade on the upper surface of the intermediate transfer body that carries the toner image intermediately, the residual toner with paper powder mixed in at the edge of the cleaning blade Also to prevent deposition, it is to be able to provide to prevent the formation of an abnormal image image forming apparatus of high quality image is formed. According to a fifth aspect of the present invention, a transfer unit that transfers a toner image formed on a rotatably supported image carrier to a transfer body transfers the toner image to the transfer body, and a residual toner remaining after the transfer of the toner image to the transfer body. The reciprocating drive of the cleaning blade driving means for reciprocatingly driving the cleaning blade for contacting and removing the residual toner adhered and remaining on the toner adhering surface in the rotation axis direction of the residual toner adhering face is reciprocatingly driven by the cleaning blade driving means. An image is formed by regulating the reciprocating drive restricting means of the clutch that intermittently reciprocates the reciprocating drive force. With a simple configuration, an impact force due to reciprocal drive is applied to the cleaning blade, and paper dust is applied to the edge of the cleaning blade. An image forming apparatus capable of preventing the formation of an abnormal image and forming a high-quality image even when the accumulation of residual toner mixed with It is to be able to provide.

According to a sixth aspect of the present invention, residual toner remaining after transferring the toner image to the transfer object by the transfer means for transferring the toner image formed on the rotatably supported image carrier to the transfer object is defined. The reciprocal drive of the cleaning blade driving means for reciprocatingly driving the cleaning blade for abutting and removing the residual toner adhered to the residual toner adhering surface on the adhering residual toner surface in the rotation axis direction of the residual toner adhering surface is performed by the reciprocal drive restricting means. While the exposing unit is exposing the image carrier, the cleaning blade driving unit is controlled to reciprocate and the reciprocating driving force is applied to the cleaning blade so that paper dust or the like is mixed into the edge of the cleaning blade. Provided is an image forming apparatus capable of preventing disturbance of an electrostatic latent image at the time of exposure and forming a high-quality image even if the accumulation of accumulated residual toner is prevented. Rukoto is to be able to. According to a seventh aspect of the present invention, a transfer unit that transfers a toner image formed on a rotatably supported image carrier to a transfer body transfers the toner image to the transfer body, and the residual toner remaining after transfer of the toner image to the transfer body. The reciprocating drive of the cleaning blade driving means for reciprocatingly driving the cleaning blade for contacting and removing the residual toner remaining on the toner adhering surface in the rotation axis direction of the residual toner adhering surface is a reciprocating drive restricting means. While the toner image is being transferred to the transfer object, the reciprocating drive of the cleaning blade driving unit is regulated so as to form an image. Even if prevention of the accumulation of the residual toner in which paper dust or the like is mixed in the toner, the formed toner image is disturbed in the process of transferring the transfer-receiving member onto the transfer paper. Not a, it is to be able to provide to prevent the formation of an abnormal image is prevented deterioration of the image toner image image forming apparatus of high quality image is formed. According to an eighth aspect of the present invention, the transfer unit that transfers the toner image formed on the rotatably supported image carrier to the transfer member transfers the toner image to the transfer member, and the residual toner remaining after the transfer of the toner image to the transfer member. The reciprocating drive of the cleaning blade driving means for reciprocatingly driving the cleaning blade, which contacts and removes the residual toner remaining on the toner adhering surface in the rotation axis direction of the residual toner adhering surface, is stored in the reciprocating drive regulating means. While writing and storing the image information of the means, the reciprocating drive of the cleaning blade driving means is regulated so as to form an image, and an impact force is applied to the cleaning blade by the reciprocating drive so that the edge portion of the cleaning blade is formed. Even if it prevents the accumulation of residual toner mixed with paper dust etc. in the Prevention to the high-quality image forming abnormal images due to the stored image information I it is to be able to provide an image forming apparatus to be performed.

According to the ninth aspect, residual toner remaining after transferring the toner image to the transfer body by the transfer means for transferring the toner image formed on the rotatably supported image carrier to the transfer body. The reciprocating drive restricting means regulates the reciprocating drive of the cleaning blade driving means for reciprocatingly driving the cleaning blade for removing the residual toner adhered to the adhered residual toner adhering surface in the rotation axis direction of the residual toner adhering surface. Even if the cleaning blade is released to form an image and an impact force is applied to the cleaning blade by reciprocating drive to prevent the accumulation of residual toner containing paper dust or the like at the edge of the cleaning blade, the image bearing The deterioration of the electrostatic latent image due to the vibration of the photoreceptor in the form of a drum and the disturbance of the toner image in the transfer process by the transfer means do not occur, and the image deterioration is reduced. Sealed it is to be able to provide an image forming apparatus reliably prevented to a high-quality image formation is performed in the formation of abnormal images. In claim 10,
The transfer means for transferring the toner image formed on the rotatably supported image carrier to the transfer body transfers the toner image to the transfer body, and the residual toner remaining after the transfer of the toner image onto the transfer body adheres to the remaining toner adhesion surface. The reciprocating drive of the cleaning blade driving means for reciprocatingly driving the cleaning blade for contacting and removing the residual toner remaining in the rotation axis direction of the residual toner adhering surface is performed by the reciprocal drive restricting means by the jam detection detection of the jam detecting means. In order to form an image by releasing the regulation that regulates the reciprocating drive of the cleaning blade driving means, an impact force due to the reciprocating drive is applied to the cleaning blade, and residual toner containing paper powder or the like mixed into the edge of the cleaning blade. Of the electrostatic latent image due to the vibration of the drum-shaped photosensitive member of the image carrier, Without disturbance of the toner image occurs, it is to be able to provide an image degradation is prevented the formation of abnormal images can be reliably prevented image forming apparatus of high quality image is formed.

[0010] In the eleventh aspect, residual toner remaining after transferring the toner image to the transfer object by the transfer means for transferring the toner image formed on the rotatably supported image carrier to the transfer object is transferred. The reciprocal drive of the cleaning blade driving means for reciprocatingly driving the cleaning blade for abutting and removing the residual toner adhered to the residual toner adhering surface on the adhering residual toner surface in the rotation axis direction of the residual toner adhering surface is performed by the reciprocal drive restricting means. By detecting the end of the image forming operation of the image forming operation detecting means, the regulation for restricting the reciprocating drive of the cleaning blade driving means is released to form an image, and an impact force due to the reciprocating drive is applied to the cleaning blade. Even if the accumulation of residual toner containing paper dust or the like at the edge of the drum is prevented, the vibration of the drum-shaped photoconductor of the image carrier is prevented. Without causing disturbance of the electrostatic latent image due to the toner image and disturbance of the toner image in the transfer process by the transfer unit, preventing image deterioration, reliably preventing abnormal image formation, and performing high quality image formation. A forming device can be provided. In the twelfth aspect, the residual toner that remains after the toner image formed on the rotatably supported image carrier is transferred to the transfer member by transferring the toner image to the transfer member is transferred. The reciprocating drive of the cleaning blade driving means for reciprocatingly driving the cleaning blade for contacting and removing the residual toner adhered and remaining on the toner adhering surface in the rotation axis direction of the residual toner adhering surface is performed by the reciprocating drive restricting means. By detecting the warm-up, the regulation that regulates the reciprocating drive of the cleaning blade driving unit is released to form an image, and an impact force due to the reciprocating drive is applied to the cleaning blade, so that paper dust or the like is mixed into the edge of the cleaning blade. Even if the accumulation of residual toner is prevented, the electrostatic latent image is disturbed by the vibration of the drum-shaped photoconductor of the image carrier. It is possible to provide an image forming apparatus in which high-quality image formation can be performed by preventing image deterioration and reliably preventing formation of an abnormal image without causing disturbance of a toner image in a transfer process by a transfer unit. To do.

[0011]

Next, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, an electrophotographic copying machine of an image forming apparatus according to the present invention includes a printer main unit 0 for forming a toner image on transfer paper of a transfer target (P) based on image recording information, and a document (O). A scanner unit 30 for reading the original image of the original, and an image recording processing unit 50 for electrically processing an image signal output from the scanner unit 30 as a digital signal. The printer main body unit 0 is a drum-shaped photosensitive member 1 that is rotatably supported in a direction indicated by an arrow A in FIG.
a and the drum 1 a of the image carrier 1
The transfer charger 2a of the transfer means 2 for transferring the toner image formed on the transfer member 2 to the transfer sheet of the transfer object (P), and the toner image is transferred onto the transfer sheet of the transfer object (P) by the transfer charger 2a of the transfer means 2. After the transfer, the residual toner adhering surface 3 to which the residual toner (t) remaining on the photoreceptor upper surface 3a of the drum-shaped photoreceptor 1a of the image carrier 1 adheres, and the photoreceptor on the residual toner adhering surface 3 The cleaning blade (photoconductor) 4a of the cleaning blade 4 that abuts and removes the residual toner (t) remaining on the upper surface 3a.
Cleaning blade driving means (photosensitive element) of cleaning blade driving means 5 for reciprocatingly driving the cleaning blade (photosensitive element) 4a of the cleaning blade 4 in the rotation axis direction of the upper surface 3a of the photosensitive element upper surface 3a of the residual toner adhering surface 3. 5) and a clutch (photoconductor) 6a of the reciprocating drive restricting means 6 for restricting the reciprocating drive of the cleaning blade driving means 5.

The scanner section 30 includes a document loading table 31.
It has a fluorescent lamp of a lamp 32 for scanning and irradiating the upper document (O). Original (O) obtained by irradiation of the lamp 32
The reflected light from the mirrors 33a and 33
b, 33c and are incident on the imaging lens. A light receiver 35 as image light passing through the imaging lens 34
For example, the light incident on the CCD is converted into a digital signal and output, and the output is subjected to necessary processing in the image recording processing unit 50 to be converted into a signal for recording and forming an image. The formation signal is written and stored in the image information storage device 8 as image information. The image information once written and stored in the image information storage device 8 is output again, input to the printer main unit 0, and sent to the exposure unit 7. In the vicinity of the drum-shaped photoconductor 1a of the image carrier 1, the photoconductor 1a
And a charging charger for charging means 12 for uniformly charging the upper surface 3a of the photoreceptor 1a of the photoreceptor 1; an exposing means 7; a developing means 13; and the transfer charger 2a for the transferring means 2 are additionally provided. The upper surface 3a of the photoconductor 1a of the drum-shaped photoconductor 1a of the charged image carrier 1
An electrostatic latent image is formed by exposure by a laser beam emitting device as the exposure unit 7. This latent image is developed by the developing means 13 to become a visualized image, that is, a toner image. In the paper supply unit 14, for example, the transfer paper of the transfer target (P) supplied from one of the two paper supply cassettes is aligned by the registration rollers 15 by the paper supply rollers 14 a and 114 b, and the timing is adjusted. At the same time, it is sent to the transfer area.

The transfer charger 2a of the transfer means 2
As a result, the drum 1 of the image carrier 1
The toner image formed on the upper surface 3a of the photosensitive member a is transferred onto the transfer paper of the transfer target (P). The transfer paper of the transfer-receiving body (P) to which the visible toner image has been transferred is separated by the separation charger 2.
b, the photosensitive member 1a is separated from the photosensitive member upper surface 3a of the drum-shaped photosensitive member 1a of the image carrier 1, transported to the fixing position of the fixing unit 11 by the transport belt of the transport body 18, and is visually recognized by the fixing unit 11. The toner image is fixed, discharged by a discharge roller 16 and stored in a discharge tray. At a downstream position of a transfer area, which is a contact position corresponding to a transfer position between the upper surface 3a of the photosensitive member 1a in a drum shape of the image carrier 1 and the transfer charger 2a of the transfer means 2, the cleaning blade is provided. The cleaning blade driving means (photoreceptor) 5a of the driving means 5 reciprocates in the rotational axis direction of the residual toner attachment surface 3 on the photosensitive member upper surface 3a of the drum-shaped photosensitive member 1a of the image carrier 1. The cleaning blade (photoconductor) 4a and the fur brush roller 1 of the cleaning blade 4 whose reciprocating drive is restricted by the clutch (photoconductor) 6a of the reciprocation drive restricting means 6
The fur brush roller (photoreceptor) 17a removes residual image toner (t) remaining on the residual toner attachment surface 3 of the photoreceptor upper surface 3a of the drum-shaped photoreceptor 1a of the image carrier 1. It has become. The fixing means 11
At the upstream position of the fixing area by the cleaning blade driving means (conveying body) 5b of the cleaning blade driving means 5, the rotation axis direction of the residual toner adhesion surface 3 on the upper surface 3b of the conveying belt of the conveying belt of the conveying body 18. The cleaning blade (conveyor) 4b of the cleaning blade 4 and the fur brush roller (conveyor) of the fur brush roller 17 whose reciprocating drive is controlled by the clutch (conveyor) 6b of the reciprocating drive restricting means 6 Reference numeral 17b removes residual image toner (t) remaining on the residual toner adhesion surface 3 of the upper surface 3b of the transport belt of the transport member 18.

In FIG. 2, the color copier of the image forming apparatus of the present invention uses the exposure means 7 to transfer the image carrier 1 from the exposure means 7 based on the color image information of the original (O) read by the scanner 30. The drum-shaped photoreceptor 1a
Is irradiated with laser light, and an electrostatic latent image corresponding to each color component of the original (O) is formed. The electrostatic latent image formed on the drum-shaped photoreceptor 1a of the image carrier 1 is substantially equidistant from the rotation center by a rotation supporter rotatably supported about the rotation center. The toner image is formed by developing with the developing means 13 composed of a plurality of developing devices arranged radially, and is sequentially superimposed on the intermediate transfer body upper surface 3c of the intermediate transfer belt of the intermediate transfer body 19a of the intermediate transfer unit 19. Transcribe,
A full-color toner image is formed on the intermediate transfer body upper surface 3c of the intermediate transfer belt of the intermediate transfer body 19a, and is collectively transferred onto the transfer paper of the transferee (P) by the transfer charger 2a of the transfer means 2. The fixing device 11
The sheet is conveyed and fixed, is ejected by the sheet ejection roller 16, is stored, and a full-color image is obtained. The intermediate transfer of the intermediate transfer body 19a of the intermediate transfer unit 19 is performed by the cleaning blade driving means (intermediate transfer body) 5c of the cleaning blade driving means 5 at a position downstream of the transfer area of the transfer means 2 by the transfer charger 2a. The cleaning blade (intermediate transfer body) of the cleaning blade 4 in which the reciprocating drive of the belt reciprocatingly moving in the rotation axis direction of the upper surface 3c of the intermediate transfer body is regulated by the clutch (intermediate transfer body) 6c of the reciprocation drive restricting means 6. 4c and the fur brush roller 1
No. 7 fur brush roller (intermediate transfer member) 17c is a residual image toner (t) remaining on the residual toner attachment surface 3 of the intermediate transfer member upper surface 3c of the intermediate transfer belt of the intermediate transfer member 19a of the intermediate transfer unit 19. Is to be removed.

FIG. 3 is a structural view of a main part of the cleaning device, and FIG. 4 is a structural view of a cleaning blade driving means, which is rotatable and has a drum shape of the image carrier 1 by electrostatic attraction and mechanical rubbing. The upper surface 3a of the photoreceptor 1a of the photoreceptor 1 and the upper surface 3 of the conveyer belt of the conveyer 18
b, the intermediate transfer member 19a of the intermediate transfer unit 19
The fur brush roller (photoreceptor) 17a of the fur brush roller 17 for removing the residual image toner (t) remaining on the residual toner adhering surface 3 of the intermediate transfer body upper surface 3c of the intermediate transfer belt 3 and the fur brush roller ( Carrier)
17b, the fur brush roller (intermediate transfer member) 17c
The rotation shaft (photoconductor) 20a, the rotation shaft (conveyance body) 20b, and the rotation shaft (intermediate transfer body) 20c of the rotation shaft 20 are provided with the clutch (photoconductor) 6a which is an electromagnetic clutch of the reciprocating drive restricting means 6. The front cam (photoconductor) 5a _{1 of} the cleaning blade driving unit (photoconductor) 5a of the cleaning blade driving unit 5 via the clutch (transporting body) 6b and the clutch (intermediate transfer body) 6c, and the cleaning blade driving means (carrier) face cam (carrier) of 5b 5b _1, the cleaning blade driving means (intermediate transfer member) 5c of the front cam (intermediate transfer member) 5c ₁ is mounted.

The front cam (photosensitive member) 5a _{1 of} the cleaning blade driving unit (photosensitive member) 5a, which is the front cam of the cleaning blade driving unit 5, and the front cam (photosensitive member) of the cleaning blade driving unit (transporting member) 5b. The transport cam 5b ₁ , the front cam (intermediate transfer member) 5c of the cleaning blade driving means (intermediate transfer member) 5c
_{Numeral 1} indicates that the disk-shaped substrate (transport body) 5a ₂ , the substrate (transport body) 5b ₂ , and the substrate (intermediate transfer body) 5c ₂ are inclined from a high portion (H) to a bottom portion (L). (See FIG. 4). In addition, the residual toner (t) which remains without being removed is applied to the fur brush roller (photoconductor) 17 of the fur brush roller 17.
a, the cleaning brush (photoconductor) 4a of the cleaning blade 4 disposed downstream of the fur brush roller (conveyor) 17b and the fur brush roller (intermediate transfer member) 17c, and the cleaning blade (conveyor) 4b, the upper surface 3a of the drum 1 of the image bearing member 1, the upper surface 3a of the drum, and the upper surface of the conveyor belt of the conveyor 18 by mechanical rubbing of the cleaning blade (intermediate transfer member) 4c. 3b, the intermediate transfer member 19a of the intermediate transfer unit 19 is removed from the upper surface 3c of the intermediate transfer belt of the intermediate transfer belt. The cleaning blade (photoconductor) 4 a of the cleaning blade 4, the cleaning blade (conveyor)
4b, the cleaning blade (intermediate transfer member) 4c
A blade holder (photosensitive member) 4a _1, the blade holder (carrier) 4b _1, the blade holder (intermediate transfer) is fixed to 4c _1, is biased by a pressure spring (not shown) shaft (photoconductor) 4a ₂ and a support shaft (photoconductor) 4a ₃ , a support shaft (conveyor) 4b ₂ and a support shaft (conveyor) 4b ₃ , a support shaft (intermediate transfer) 4c ₂ and a support shaft (intermediate transfer) 4c ₃ The image bearing member 1 is rotated, and the photosensitive member upper surface 3a of the drum-shaped photosensitive member 1a of the image carrier 1, the transporter upper surface 3b of the transport belt of the transporter 18, and the intermediate transfer member 19a of the intermediate transfer unit 19 are rotated. Each tip of the cleaning blade (photoconductor) 4a, the cleaning blade (conveyor) 4b, and the cleaning blade (intermediate transfer member) 4c of the cleaning blade 4 is provided on the intermediate transfer member upper surface 3c of the intermediate transfer belt. It is in contact with.

The front cam (photoreceptor) 5a ₁ and the front face are provided at the ends of the support shaft (photosensitive member) 4a ₃ , the support shaft (transportation member) 4b ₃ , and the support shaft (intermediate transfer) 4c _3. cam (carrier) 5b _1, the front cam (intermediate transfer member) 5c ₁ opposite the cam follower (photosensitive member) 4a _4, the cam follower (carrier) 4b _4, the cam follower (intermediate transfer) 4c ₄ the shaft rotatably Supported, and the other support shaft (photoconductor) 4a
₂ , the support shaft (transport body) 4 b ₂ , the support shaft (intermediate transfer) 4
c ₂ is the other side housing (photosensitive member) 4a _5, housing (carrier) 4b _5, is movably supported on the housing (intermediate transfer) 4c _5, the blade holder (photoconductor) 4
a ₁ , the blade holder (transport body) 4b ₁ , the blade holder (intermediate transfer body) 4c ₁ and the housing (photoconductor) 4a ₅ , the housing (transport body) 4b ₅ , the housing (intermediate transfer body) 4c ₅ , the support shaft (photoconductor) 4a ₂ , the support shaft (transport body) 4b ₂ , the support shaft (intermediate transfer member) 4c ₂ , a spring (photoconductor) 4a ₆ ,
A spring (conveyor) 4b ₆ and a spring (intermediate transfer member) 4c ₆ are interposed, and the cam follower (photoconductor) 4a ₄ , the cam follower (conveyor) 4b ₄ ,
It said cam follower (intermediate transfer member) 4c ₄ is urged to abut against the said face cam (photosensitive member) 5a _1, the front cam (carrier) 5b _1, the front cam (intermediate transfer member) 5c ₁ .

In such a case, the fur brush roller (photoconductor) 17 of the fur brush roller 17 is used.
a, in a state where the fur brush roller (conveying body) 17b and the fur brush roller (intermediate transfer body) 17c are driven and rotated, the clutch (which is an electromagnetic clutch of the reciprocating drive restricting means 6 by the control means 21). When the photoconductor 6a, the clutch (transport body) 6b, and the clutch (intermediate transfer body) 6c are energized, the front cam (photoconductor) 5a ₁ and the front cam (transport body) 5 are driven by the driving force.
b ₁ , the front cam (intermediate transfer member) 5c ₁ rotates in the direction of arrow B shown in FIG.
a ₄ , the cam follower (transport body) 4b ₄ , the cam follower (intermediate transfer) 4c ₄ is the front cam (photoconductor) 5
a ₁ , a portion higher than the bottom portion (L) (H) of the front cam (transporting body) 5b ₁ and the front cam (intermediate transfer member) 5c ₁
Accordingly, the cleaning blade (photosensitive member) 4a, the cleaning blade (transporting member) 4b, and the cleaning blade (intermediate transfer member) 4c of the cleaning blade 4 are fixed to the blade holder (photosensitive member). Body) 4a ₁ , the blade holder (transport body) 4b ₁ , the blade holder (intermediate transfer body)
4c ₁ is the spring (photoconductor) 4a ₆ , the spring (conveyor) 4b ₆ , the spring (intermediate transfer member) 4
against the biasing force of the c _6, moves in the axial direction toward the left as indicated by an arrow C direction illustrated in FIG. 3, where the cam follower has passed the high portion (H), the spring (photoreceptor ) 4a ₆ , the spring (conveying body) 4b ₆ , and the spring (intermediate transfer member) 4c ₆ urging force abruptly,
Higher the base plate portion (carrier) 5a _2, the base plate portion (carrier) 5b _2, the base plate portion (intermediate transfer member) falls to 5c _2. The impact of the drop causes the cleaning blade (photoconductor) 4 a of the cleaning blade 4,
An impact is applied to the cleaning blade (conveyor) 4b and the cleaning blade (intermediate transfer member) 4c, and the cleaning blade (photoconductor) 4a of the cleaning blade 4 and the cleaning blade (conveyor)
4b, residual toner (t) mixed with toner having poor fluidity, paper dust, etc., deposited on the edge of each end of the cleaning blade (intermediate transfer member) 4c can be removed.

On the other hand, the impact is applied by the control means 21 to the electromagnetic clutches of the clutch (photosensitive member) 6a, the clutch (conveyor) 6b, and the clutch (intermediate transfer member) 6c of the reciprocating drive restricting means 6. Of the cleaning blade 4, the cleaning blade (photoconductor) 4a, the cleaning blade (conveyor) 4b, and the cleaning blade (intermediate transfer member) of the cleaning blade 4.
4c, the transfer charger 2a of the transfer unit 2 applies toner to the transfer target (P) while the exposure unit 7 exposes the drum-shaped photoreceptor 1a of the image carrier 1. While the image is being transferred and while the image information of the image information storage means 8 is being written and stored, the cleaning blade driving means (photoconductor) 5a which is the front cam of the cleaning blade driving means 5 is used. The front cam (photoconductor) 5a ₁ , the front cam (conveyor) 5 of the cleaning blade driving means (conveyor) 5b.
b ₁ , the reciprocating drive of the front cam (intermediate transfer member) 5c ₁ of the cleaning blade driving means (intermediate transfer member) 5c is regulated. However, the regulation for restricting the reciprocating drive is released by the detection of the jam removal by the jam detecting means 9, the completion of the image forming operation by the image forming operation detecting means 10, and the detection of the warm-up of the fixing means 11 by the warming-up detection. . Therefore, even if an impact force is applied to the cleaning blade 4 to prevent the accumulation of the residual toner (t) containing paper dust or the like at the edge of the cleaning blade 4, the electrostatic force at the time of exposure by the exposure unit 7 is reduced. Image information erroneously stored due to disturbance of latent image, blurred image of toner image at the time of transfer by the transfer means 2, system error due to writing and storage failure when writing and storing information of the image storage means 8, writing failure Thus, it is possible to provide an image forming apparatus capable of preventing the formation of an abnormal image due to the image formation and performing the high quality image formation.

FIG. 5 is a diagram showing the operation timing of the exposure means and the reciprocating drive restricting means, and FIG.
The controller 21 controls the reciprocating drive of the cleaning blade 4 so that the reciprocating drive of the cleaning blade 4 is performed on the drum-shaped photoconductor 1a of the image carrier 1 by the exposing unit 7 except during the exposure operation. It is configured. The illustrated timing chart shows that the transfer object (P) is continuously
This is an example in which a formed image is obtained on three transfer papers, and the clutch (photosensitive) of the reciprocating drive restricting means 6 is not used during the first to third times except for each exposure operation by the exposing means 7. ), The clutch (transporting body) 6b, and the clutch (intermediate transfer body) 6c are turned on to energize the electromagnetic clutch.
The cleaning blade (photoconductor) 4a, the cleaning blade (transportation body) 4b, and the cleaning blade (intermediate transfer body) 4c are reciprocally driven. When an exposure operation is being performed on the drum-shaped photoconductor 1 a of the image carrier 1 by the exposure unit 7, the clutch (photoconductor) 6 a of the reciprocating drive restricting unit 6, the clutch (conveyor) 6b, the energization of the electromagnetic clutch of the clutch (intermediate transfer member) 6c is turned off, and the rotation shaft (photoconductor) 2 of the rotation shaft 20 of the fur brush roller 17 is turned off.
0a, the rotating shaft (transporting body) 20b, and the rotating drive of the rotating shaft (intermediate transfer body) 20c are transmitted and not reciprocated. Therefore, the spring (photoconductor) 4
a ₆ , an electrostatic latent image formed on the drum-shaped photoconductor 1 a of the image carrier 1 by the impact of the biasing force of the spring (conveyor) 4 b ₆ and the spring (intermediate transfer member) 4 c ₆ It is possible to provide an image forming apparatus in which high-quality image formation can be performed without being disturbed, preventing image deterioration of a toner image and preventing formation of an abnormal image.

7 and 8, the reciprocating drive of the cleaning blade 4 is performed by the control means 21, and the toner image formed on the drum-shaped photosensitive member 1 a of the image carrier 1 by the transfer means 2. To be transferred (P)
Is controlled so as to be performed other than during the transfer operation to the transfer paper. The illustrated timing chart is an example of a case in which images are continuously formed on three transfer sheets of the transfer target (P), except for each of the first to third transfer operations by the transfer unit 2 above. At this time, the energization of the electromagnetic clutches of the clutch (photosensitive member) 6a, the clutch (conveyance member) 6b, and the clutch (intermediate transfer member) 6c of the reciprocating drive restricting means 6 is turned on. 4, the cleaning blade (photoconductor) 4a, the cleaning blade (conveyor) 4b, the cleaning blade (intermediate transfer member)
4c is driven back and forth. When the transfer means 2 is performing the operation of transferring the toner image formed on the drum-shaped photosensitive member 1a of the image carrier 1 to the transfer sheet of the transfer-receiving member (P), the reciprocating drive regulation is performed. The energization of the electromagnetic clutches of the clutch (photosensitive member) 6a, the clutch (conveyor) 6b, and the clutch (intermediate transfer member) 6c of the means 6 is O
FF and the rotation shaft 2 of the fur brush roller 17
The rotation drive of the rotation shaft (photoconductor) 20a, the rotation shaft (conveyor) 20b, and the rotation shaft (intermediate transfer member) 20c is not transmitted and reciprocated. Thus, the spring (photosensitive member) 4a _6, the spring (carrier) 4b _6, the impact due to the urging force of the spring (intermediate transfer member) 4c _6, to the photosensitive member 1a of the drum-shaped the image carrier 1 The formed toner image is not disturbed in the step of transferring the transfer-receiving member (P) to the transfer paper, the image deterioration of the toner image is prevented, the formation of an abnormal image is prevented, and high-quality image formation is achieved. An image forming apparatus can be provided.

In FIG. 9 and FIG.
Thereby, the reciprocating drive of the cleaning blade 4 is performed,
The image information storage means 8 is configured to be controlled so as to be performed other than at the time of the information storage operation of writing and saving the hard disk drive. The illustrated timing chart is an example of a case in which images are continuously formed on three transfer sheets of the transfer target (P).
The clutch (photoconductor) 6a, the clutch (transport body) 6b, and the clutch (intermediate transfer body) of the reciprocation drive restricting means 6 at times other than the time of each information storage operation by the image information storage means 8 up to the first time. 6c, the energization of the electromagnetic clutch is turned on, and the
The cleaning blade (photoconductor) 4a, the cleaning blade (transportation body) 4b, and the cleaning blade (intermediate transfer body) 4c are reciprocally driven. The information storage operation of writing and saving the image information sent from the scanner unit 30 or the external device such as a personal computer (not shown) to the image recording processing unit 50 in the hard disk drive of the image information storage unit 8 is performed. When you are
The clutch (photoconductor) 6 of the reciprocating drive restricting means 6
a, the energization of the electromagnetic clutches of the clutch (conveying body) 6b and the clutch (intermediate transfer body) 6c is turned off, and the rotating shaft (photoconductor) 20a of the rotating shaft 20 of the fur brush roller 17; The rotational drive of the shaft (conveyor) 20b and the rotating shaft (intermediate transfer member) 20c is not transmitted and reciprocated. Therefore, the spring (photoconductor) 4a ₆ , the spring (transportation body) 4b ₆ , and the spring (intermediate transfer member) 4c ₆ are erroneously stored due to a system error or a writing failure due to a shock due to the urging force of the spring. Thus, it is possible to provide an image forming apparatus capable of preventing the occurrence of an abnormal image due to image information and forming a high-quality image.

In FIG. 11 and FIG.
1, the reciprocating drive of the cleaning blade 4 is controlled such that the restriction for restricting the reciprocal drive of the cleaning blade driving means 5 is released by the detection of jam removal by the jam detecting means 9. . The timing chart shown in the drawing is such that if the transfer sheet of the transfer receiving body (P) causes a conveyance trouble after the copying operation of the image forming operation is started, the image forming operation is interrupted by the detection of the occurrence of the jam by the jam detecting means 9. Then, the operator performs predetermined jam processing. For example, by opening the front cover (not shown) of the electrophotographic copying machine of the image forming apparatus, removing the jammed transfer sheet of the transfer receiving body (P), and closing the front cover (not shown) again, the jam of the jam detecting means 9 is detected. By detecting the cancellation, the clutch (photoconductor) 6a, the clutch (conveyor) 6b of the reciprocating drive restricting means 6,
The energization of the electromagnetic clutch of the clutch (intermediate transfer body) 6c is turned on, whereby the cleaning blade (photoconductor) 4a, the cleaning blade (transport body) 4b of the cleaning blade 4, and the cleaning blade (intermediate transfer body) ) 4c is driven back and forth. After a reciprocating drive of the cleaning blade (photoconductor) 4a, the cleaning blade (conveyor) 4b, and the cleaning blade (intermediate transfer member) 4c of the cleaning blade 4 is performed for a predetermined time, a print key (not shown) The electromagnetic clutches of the clutch (photosensitive member) 6a, the clutch (conveyor) 6b, and the clutch (intermediate transfer member) 6c of the reciprocating drive restricting means 6 before the image forming operation is restarted by pressing down or restart signal. Is turned off, and the rotational drive of the rotating shaft (photoconductor) 20a, the rotating shaft (conveyor) 20b, and the rotating shaft (intermediate transfer member) 20c of the rotating shaft 20 of the fur brush roller 17 is transmitted. Is not driven back and forth. Therefore,
The spring (photosensitive member) 4a _6, the spring (carrier) 4b _6, the impact due to the urging force of the spring (intermediate transfer member) 4c _6, due to vibration of the photoconductor 1a of the drum-shaped the image carrier 1 Without the disturbance of the electrostatic latent image and the disturbance of the toner image in the transfer step by the transfer unit 2, the image deterioration is prevented, the formation of the abnormal image is surely prevented, and the high quality image is formed. An image forming apparatus can be provided.

In FIG. 13 and FIG.
By means of 1, the reciprocating drive of the cleaning blade 4 is controlled so as to release the regulation that restricts the reciprocating drive of the cleaning blade driving means 5 by the image forming operation detecting means 10 detecting the end of the image forming operation. Is configured. The timing chart shown is
Pressing a copy start switch (not shown) for image formation,
Alternatively, after a start signal from an external device such as a personal computer (not shown) is turned on, a predetermined image forming operation is started, and when the image forming operation detecting unit 10 detects the end of the image forming operation, the reciprocating drive restricting unit 6 The energization of the electromagnetic clutches of the clutch (photoconductor) 6a, the clutch (transportation body) 6b, and the clutch (intermediate transfer body) 6c is turned on, whereby the cleaning blade (photoconductor) 4a of the cleaning blade 4 is turned on. The cleaning blade (conveyor) 4b and the cleaning blade (intermediate transfer member) 4c are reciprocated. The cleaning blade (photoconductor) 4a, the cleaning blade (conveyor) 4b, and the cleaning blade (intermediate transfer member) of the cleaning blade 4 for a predetermined time.
After the reciprocating drive of 4c is performed, the clutch of the reciprocating drive restricting means 6 is pressed before the copy end switch for ending the image formation (not shown) is pressed or the end signal from an external device such as a personal computer (not shown) is turned off. (Photoconductor)
6a, the power supply to the electromagnetic clutch of the clutch (conveying body) 6b and the clutch (intermediate transfer body) 6c is turned off,
A rotating shaft (photoconductor) 20a of the rotating shaft 20 of the fur brush roller 17, a rotating shaft (transporting body) 20b,
The rotation drive of the rotation shaft (intermediate transfer member) 20c is not transmitted and reciprocated. Therefore, the impact of the urging force of the spring (photoconductor) 4a ₆ , the spring (transport body) 4b ₆ , and the spring (intermediate transfer body) 4c ₆ causes the drum-shaped photoconductor 1a of the image carrier 1 to be moved. Without the disturbance of the electrostatic latent image due to the vibration and the disturbance of the toner image in the transfer step by the transfer means 2, the image deterioration is prevented and the formation of an abnormal image is reliably prevented, so that high quality image formation is achieved. An image forming apparatus can be provided.

In FIG. 15 and FIG.
1, the reciprocating drive of the cleaning blade 4 is controlled so as to release the regulation for restricting the reciprocal drive of the cleaning blade driving unit 5 by detecting the warm-up of the fixing unit 11. The timing chart shown in the figure shows that after the main switch (not shown) for image formation is turned on, the fixing unit 11 is turned on and rises to a predetermined temperature.
The image forming operation is not performed, and this time is the warming-up time of the fixing means 11, during which time the clutch (photoconductor) 6a of the reciprocating drive restricting means 6,
The energization of the electromagnetic clutches of the clutch (conveyor) 6b and the clutch (intermediate transfer member) 6c is turned on, whereby the cleaning blade (photoconductor) 4a of the cleaning blade 4 and the cleaning blade (conveyor) 4b , Cleaning blade (intermediate transfer member)
4c is driven back and forth. The cleaning blade (photoconductor) of the cleaning blade 4 for a predetermined time
After the reciprocating drive of the cleaning blade (conveyor) 4b, the cleaning blade (intermediate transfer member) 4c, the clutch (photosensitive member) 6a of the reciprocating drive restricting means 6, the clutch (conveyor) 6b, energization of the clutch (intermediate transfer member) 6c to the electromagnetic clutch is O
FF and the rotation shaft 2 of the fur brush roller 17
The rotation drive of the rotation shaft (photoconductor) 20a, the rotation shaft (conveyor) 20b, and the rotation shaft (intermediate transfer member) 20c is not transmitted and reciprocated. Therefore, the impact of the urging force of the spring (photoconductor) 4a ₆ , the spring (transport body) 4b ₆ , and the spring (intermediate transfer body) 4c ₆ causes the drum-shaped photoconductor 1a of the image carrier 1 to be moved. Without the disturbance of the electrostatic latent image due to the vibration and the disturbance of the toner image in the transfer step by the transfer means 2, the image deterioration is prevented and the formation of an abnormal image is reliably prevented, so that high quality image formation is achieved. An image forming apparatus can be provided.

[0026]

According to the present invention, the toner image formed on the rotatably supported image carrier is transferred to the transfer member according to the first aspect of the present invention. The transfer blade that transfers the toner image to the transfer receiving body after the transfer of the toner image onto the transfer-receiving member. Since the reciprocating drive of the cleaning blade driving unit that reciprocates in the axial direction is controlled by the reciprocating drive restricting unit to form an image, an impact force due to the reciprocating drive is applied to the cleaning blade, and paper is applied to the edge of the cleaning blade. It is possible to provide an image forming apparatus in which formation of an abnormal image is prevented and high-quality image formation is performed even if the accumulation of residual toner mixed with powder or the like is prevented. It became a jar. According to the second aspect of the present invention, the residual toner remaining after the toner image is transferred to the transfer object by the transfer means for transferring the toner image formed on the rotatably supported image carrier to the transfer object is transferred. A cleaning blade for contacting and removing the residual toner adhered and remaining on the upper surface of the photoreceptor on which the latent image is formed by the exposure means is reciprocally driven in the rotation axis direction of the residual toner adhered surface. Since the reciprocating drive of the cleaning blade driving means is regulated by the reciprocating drive regulating means to form an image, the impact force by the reciprocating drive is applied to the cleaning blade on the upper surface of the photoconductor on which the latent image is formed by the exposing means. Provided is an image forming apparatus in which an abnormal image is prevented from being formed and a high-quality image is formed even if the accumulation of residual toner in which paper dust or the like is mixed in an edge portion of a blade is prevented. It has become possible. According to the third aspect of the present invention, the residual toner remaining after the toner image is transferred to the transfer member by the transfer unit that transfers the toner image formed on the rotatably supported image carrier to the transfer member. Adhere to,
Reciprocating drive of a cleaning blade driving means for reciprocatingly driving a cleaning blade for contacting and removing residual toner adhered and remaining on the upper surface of a transport belt for transporting a transfer object in a rotation axis direction of the residual toner adhered surface. Since the image is formed by regulating by the regulating means, the impact force by reciprocating drive is applied to the cleaning blade on the upper surface of the transporting body for transporting the transfer object, and the residual paper dust or the like is mixed into the edge of the cleaning blade. Even if you prevent toner accumulation,
It has become possible to provide an image forming apparatus that performs high-quality image formation while preventing formation of an abnormal image.

According to the fourth aspect of the present invention, the toner image formed on the rotatably supported image carrier is transferred to the transfer member by the transfer means to transfer the toner image to the transfer member, and then remains. Cleaning that removes residual toner adhered to and adheres to the upper surface of an intermediate transfer member that carries an intermediate toner image between the toner image formed on the upper surface of the photoreceptor and the toner image that is transferred to the transfer receiver, to which the residual toner adheres. Since the reciprocating drive of the cleaning blade driving means for reciprocatingly driving the blade in the rotation axis direction of the residual toner adhering surface is regulated by the reciprocating drive regulating means, an image is formed. The cleaning blade on the upper surface of the intermediate transfer member, which carries the toner image in the middle of the transfer to the transfer target, is subjected to reciprocating drive to apply an impact force to the cleaning blade. Also to prevent contaminating deposition of residual toner, preventing to high-quality image formation in the formation of an abnormal image is now able to provide an image forming apparatus to be performed. According to the fifth aspect of the present invention, the residual toner remaining after the toner image is transferred to the transfer member by the transfer unit that transfers the toner image formed on the rotatably supported image carrier to the transfer member. The reciprocating drive of the cleaning blade driving means for reciprocatingly driving the cleaning blade for abutting and removing the residual toner adhered and remaining on the adhered residual toner adhering surface in the rotation axis direction of the residual toner adhering surface is performed by the cleaning blade driving means. The reciprocating drive force of the clutch is intermittently controlled by the reciprocating drive restricting means to form an image. Therefore, with a simple configuration, an impact force due to reciprocating drive is applied to the cleaning blade, and an edge of the cleaning blade is applied. Image formation that prevents the formation of abnormal images and prevents the formation of abnormal images, even when the accumulation of residual toner containing paper dust etc. It has become possible to provide a device.

According to the sixth aspect of the present invention, the toner image formed on the rotatably supported image carrier is transferred to the transfer member, and the toner image is transferred to the transfer member. The reciprocal driving of the cleaning blade driving means for reciprocatingly driving the cleaning blade, which contacts the residual toner adhering surface on which the residual toner adheres and removes the residual toner adhering thereto in the rotation axis direction of the residual toner adhering surface, is regulated. Means for controlling the reciprocating drive of the cleaning blade driving means while the exposing means is exposing the image carrier, so that an impact force due to the reciprocating drive is applied to the cleaning blade, and paper is applied to the edge of the cleaning blade. An image forming apparatus that forms a high-quality image by preventing disturbance of an electrostatic latent image at the time of exposure even when the accumulation of residual toner mixed with powder or the like is prevented. To provide has become to be able to. According to the invention of claim 7, the residual toner remaining after the toner image is transferred to the transfer object by the transfer means for transferring the toner image formed on the rotatably supported image carrier to the transfer object. The reciprocal drive of the cleaning blade driving means for reciprocatingly driving the cleaning blade for abutting and removing the residual toner adhered to the residual toner adhering surface on the adhering residual toner surface in the rotation axis direction of the residual toner adhering surface is performed by the reciprocal drive restricting means. While the transfer unit is transferring the toner image to the transfer target, the reciprocating drive of the cleaning blade driving unit is regulated to form an image. Even if the accumulation of residual toner containing paper dust and the like at the edge portion of the blade is prevented, the formed toner image is not transferred in the process of transferring the transfer target material onto the transfer paper. Is the fact not, now it is possible to provide to prevent the formation of an abnormal image is prevented deterioration of the image toner image image forming apparatus of high quality image is formed.

According to the eighth aspect of the present invention, the toner image formed on the rotatably supported image carrier is transferred to the transfer member by the transfer means, and the toner image remains after being transferred to the transfer member. The reciprocal driving of the cleaning blade driving means for reciprocatingly driving the cleaning blade, which contacts the residual toner adhering surface on which the residual toner adheres and removes the residual toner adhering thereto in the rotation axis direction of the residual toner adhering surface, is regulated. While the image information of the image information storage unit is written and stored by the unit, the reciprocating drive of the cleaning blade driving unit is regulated to form an image. hand,
High quality by preventing the accumulation of residual toner containing paper dust etc. at the edge of the cleaning blade, but also preventing the occurrence of system errors due to poor writing and storage and the occurrence of abnormal images due to incorrectly stored image information due to poor writing. It is possible to provide an image forming apparatus in which the above image formation is performed. According to the ninth aspect of the present invention, the residual toner remaining after the toner image is transferred to the transfer body by the transfer unit that transfers the toner image formed on the rotatably supported image carrier to the transfer body. The reciprocating drive restricting means regulates the reciprocating drive of the cleaning blade driving means for reciprocatingly driving the cleaning blade for removing the residual toner adhered to the adhered residual toner adhering surface in the rotation axis direction of the residual toner adhering surface. Therefore, even if the cleaning blade is applied with an impact force by reciprocating drive to prevent the accumulation of residual toner containing paper dust or the like at the edge of the cleaning blade, the image is formed. Image deterioration is prevented without disturbance of the electrostatic latent image due to vibration of the photosensitive member having the drum shape of the carrier and disturbance of the toner image in the transfer process by the transfer unit Reliably prevented to a high-quality image formation in the formation of an abnormal image is now able to provide an image forming apparatus to be performed is. Claim 10
According to the invention, the residual toner that remains after the toner image is transferred to the transfer object by the transfer unit that transfers the toner image formed on the rotatably supported image carrier to the transfer object is attached. The reciprocating drive of the cleaning blade driving means for reciprocatingly driving the cleaning blade for contacting and removing the residual toner remaining on the toner adhering surface in the rotation axis direction of the residual toner adhering surface is performed by the reciprocating drive restricting means. By detecting the removal of the jam, the regulation that regulates the reciprocating drive of the cleaning blade driving unit is released to form an image.Therefore, an impact force due to the reciprocating drive is applied to the cleaning blade, and paper is applied to the edge of the cleaning blade. Even if the accumulation of the residual toner mixed with the powder or the like is prevented, the electrostatic latent image is disturbed and transferred due to the vibration of the drum-shaped photoconductor of the image carrier. It is possible to provide an image forming apparatus in which high-quality image formation is performed by preventing image deterioration and reliably preventing formation of an abnormal image without causing disturbance of a toner image in a transfer step by a step. Became.

According to the eleventh aspect of the present invention, the toner image formed on the rotatably supported image carrier is transferred to the transfer member by the transfer means, and the toner image remains after being transferred to the transfer member. The reciprocal driving of the cleaning blade driving means for reciprocatingly driving the cleaning blade, which contacts the residual toner adhering surface on which the residual toner adheres and removes the residual toner adhering thereto in the rotation axis direction of the residual toner adhering surface, is regulated. By means of the means, when the image forming operation detecting means detects the end of the image forming operation, the regulation for restricting the reciprocating drive of the cleaning blade driving means is released to form an image, so that an impact force due to the reciprocating drive is applied to the cleaning blade. Therefore, even if the accumulation of residual toner containing paper dust and the like at the edge portion of the cleaning blade is prevented, the drum-shaped Disturbance of the electrostatic latent image due to body vibration and disturbance of the toner image in the transfer process by the transfer unit do not occur, and image deterioration is prevented, abnormal image formation is reliably prevented, and high quality image formation is achieved. An image forming apparatus can be provided. According to the twelfth aspect of the present invention, the residual toner remaining after the toner image is transferred to the transfer object by the transfer means for transferring the toner image formed on the rotatably supported image carrier to the transfer object. The reciprocal drive of the cleaning blade driving means for reciprocatingly driving the cleaning blade for abutting and removing the residual toner adhered to the residual toner adhering surface on the adhering residual toner surface in the rotation axis direction of the residual toner adhering surface is performed by the reciprocal drive restricting means. By detecting the warming-up of the fixing unit, the regulation that regulates the reciprocating drive of the cleaning blade driving unit is released to form an image.Therefore, an impact force due to the reciprocating drive is applied to the cleaning blade, and paper is applied to the edge of the cleaning blade. Even if the accumulation of residual toner mixed with powder etc. is prevented,
The electrostatic latent image is not disturbed by the vibration of the photosensitive member having the drum shape of the image carrier, and the toner image is not disturbed in the transfer process by the transfer unit. As a result, it is possible to provide an image forming apparatus capable of forming a high-quality image.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating an outline of an image forming apparatus according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating a main part of the image forming apparatus according to the exemplary embodiment of the present invention.

FIG. 3 is an explanatory diagram illustrating another main part of the image forming apparatus according to the exemplary embodiment of the present invention.

FIG. 4 is a perspective view illustrating another main part of the image forming apparatus according to the exemplary embodiment of the present invention.

FIG. 5 is a time chart illustrating an operation of another main part of the image forming apparatus according to the exemplary embodiment of the present invention.

FIG. 6 is an explanatory diagram illustrating another main part of the image forming apparatus according to the exemplary embodiment of the present invention.

FIG. 7 is a time chart illustrating an operation of another main part of the image forming apparatus according to the exemplary embodiment of the present invention.

FIG. 8 is an explanatory diagram illustrating another main part of the image forming apparatus according to the exemplary embodiment of the present invention.

FIG. 9 is a time chart illustrating an operation of another main part of the image forming apparatus according to the exemplary embodiment of the present invention.

FIG. 10 is an explanatory diagram illustrating another main part of the image forming apparatus according to the exemplary embodiment of the present invention.

FIG. 11 is a time chart illustrating an operation of another main part of the image forming apparatus according to the exemplary embodiment of the present invention.

FIG. 12 is an explanatory diagram illustrating another main part of the image forming apparatus according to the exemplary embodiment of the present invention.

FIG. 13 is a time chart illustrating an operation of another main part of the image forming apparatus according to the exemplary embodiment of the present invention.

FIG. 14 is an explanatory diagram illustrating another main part of the image forming apparatus according to the exemplary embodiment of the present invention.

FIG. 15 is a time chart illustrating an operation of another main part of the image forming apparatus according to the exemplary embodiment of the present invention.

FIG. 16 is an explanatory diagram illustrating another main part of the image forming apparatus according to the exemplary embodiment of the present invention.

[Explanation of symbols]

0 Printer main body 1 Image carrier, 1a Photoconductor 2 Transfer means, 2a Transfer charger, 2b Separation charger 3 Residual toner adhesion surface, 3a Photoconductor upper surface, 3b Carrier upper surface, 3c Intermediate transfer member upper surface 4 Cleaning blade, 4a Cleaning Blade (photoconductor), 4a ₁ blade holder (photoconductor), 4
a ₂ shaft (photoconductor), 4a ₃ spindle (photoconductor), 4a ₄
The cam follower (photoconductor), 4a ₅ housing (photoconductor), 4a ₆ spring (photoconductor), 4b cleaning blade (conveying member), 4b ₁ blade holder (carrier), 4b ₂ shaft (carrier), 4b ₃ Support shaft (conveyor), 4b ₄ cam follower (conveyor), 4b ₅ housing (conveyor), 4b ₆ spring (conveyor), 4c
Cleaning blade (intermediate transfer member), 4c ₁ blade holder (intermediate transfer), 4c ₂ support shaft (intermediate transfer),
4c ₃ support shaft (intermediate transfer), 4c ₄ cam follower (intermediate transfer), 4c ₅ housing (intermediate transfer), 4c ₆ spring (intermediate transfer body) 5 cleaning blade drive means, 5a cleaning blade drive means (photoconductor), 5a ₁ Front cam (photoconductor), 5a ₂ Substrate unit (photoconductor), 5b Cleaning blade driving unit (conveyor), 5b ₁ Front cam (conveyor), 5b ₂ Substrate unit (conveyor), 5c Cleaning blade driving unit (Intermediate transfer member), 5c ₁ front cam (intermediate transfer member), 5c ₂ substrate portion (intermediate transfer member), 6
Reciprocating drive restricting means, 6a Clutch (photoconductor), 6b
Clutch (conveyance body), 6c Clutch (intermediate transfer body) 7 Exposure means 8 Image information storage means 9 Jam detection means 10 Image forming means 11 Fixing means 12 Charging means 13 Developing means 14 Paper feed unit, 14a Paper feed roller, 14b feed Paper roller 15 Registration roller 16 Discharge roller 17 Fur brush roller, 17a Fur brush roller (photoconductor), 17b Fur brush roller (transport body), 17c Fur brush roller (intermediate transfer body) 18 Transport body 19 Intermediate transfer unit, 19a Intermediate transfer body 20 Rotation axis, 20a Rotation axis (photoconductor), 20b Rotation axis (conveyance body), 20c Rotation axis (Intermediate transfer body) 21 Control means 30 Scanner unit 31 Original loading table 32 Lamp 33 Mirror group, 33a mirror, 33b mirror, 3
3c mirror 34 imaging lens 35 light receiver 50 image recording processing unit

Claims (12)

[Claims] 1. An image forming apparatus for forming an image by removing a residual toner adhered and remaining after a toner image formed on an image carrier is transferred to a transfer body, and rotatably supported. The transferred image carrier, a transfer unit for transferring the toner image formed on the image carrier to the transfer target body, and a residue to which residual toner remaining after transferring the toner image to the transfer target body by the transfer unit is attached. A cleaning blade for contacting and removing the residual toner adhering to the residual toner adhering surface, and a cleaning blade driving means for reciprocatingly driving the cleaning blade in a rotation axis direction of the residual toner adhering surface; An image forming apparatus comprising: a reciprocating drive restricting means for restricting a reciprocating drive of the cleaning blade driving means. 2. The image forming apparatus according to claim 1, wherein the residual toner adhering surface is an upper surface of a photoconductor on which a latent image is formed by an exposure unit. 3. The image forming apparatus according to claim 1, wherein the residual toner adhering surface is an upper surface of a conveying body that conveys the transfer target. 4. The image forming apparatus according to claim 1, wherein the residual toner adhering surface carries the toner image intermediately between the toner image formed on the upper surface of the photoreceptor and the image to be transferred to the transfer target. An image forming apparatus comprising: an upper surface of an intermediate transfer member. 5. The image forming apparatus according to claim 1, wherein said reciprocating drive restricting means comprises a clutch for intermittently reciprocating driving force for reciprocatingly driving said cleaning blade driving means. Image forming device. 6. The image forming apparatus according to claim 1, wherein the reciprocating drive restricting means includes a reciprocating drive means for reciprocating the cleaning blade driving means while the exposing means exposes the image carrier. An image forming apparatus for regulating driving. 7. The image forming apparatus according to claim 1, wherein the reciprocating drive restricting unit is configured to perform cleaning while the transfer unit is transferring the toner image to the transfer target. An image forming apparatus that regulates reciprocal driving of a blade driving unit. 8. The image forming apparatus according to claim 1, wherein the reciprocating drive restricting means is provided while the image information storage means writes and stores the image information. An image forming apparatus which regulates reciprocal driving of a cleaning blade driving unit. 9. The image forming apparatus according to claim 1, wherein the reciprocating drive restricting unit releases the restriction for restricting the reciprocating drive of the cleaning blade driving unit. An image forming apparatus comprising: 10. The method of claim 1, 2, 3, 4, 5, 6, 7,
10. The image forming apparatus according to claim 8, wherein the reciprocating drive restricting means cancels the restriction for restricting the reciprocating drive of the cleaning blade driving means by detecting the jam removal of the jam detecting means. 11. The image forming apparatus according to claim 1, wherein the reciprocating drive restricting means releases restriction for restricting reciprocating drive of the cleaning blade driving means by detecting image forming operation end by the image forming operation detecting means. An image forming apparatus. 12. The image forming apparatus according to claim 1, wherein the reciprocating drive restricting unit cancels the restriction for restricting the reciprocating drive of the cleaning blade driving unit by detecting a warm-up of the fixing unit. Image forming device.