JPS61114276A - Image forming device - Google Patents

Abstract

PURPOSE:To reduce the size of the whole device by driving a means which conveys and stores the residue of a cleaned developer image in an image carrier associatively with the image carrier which is driven by the driving system of the main device body to rotate. CONSTITUTION:The residual developer of a visual image on a cleaned photosensitive body 10 which is deposited in a cleaner box 133 is carried in a toner storage box 117 through the rotation of a conveying auger 116 and carried to the side of a photosensitive body 10 by a spiral auger 121 which is driven. This conveying auger 121 is inserted into the insertion hole 106a of a front flange 106 on an end surface of the photosensitive body 10 to convey and store the residual developer in the photosensitive body 10. In this case, the rotary driving force of the conveying auger 116 is transmitted through the intermediate gear 221 of a driving gear 220 provided to a rear side shaft end part by engaging the gear 222 of the photosensitive body 10 which is driven by the driving system of the main device side to rotate.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an image forming apparatus including a cleaning means for cleaning developer remaining on an image bearing member, such as an electronic copying machine.

[Technical background of the invention and its problems]

Conventionally, cleaning devices for this type of electronic copying machine include:
As illustrated in FIG. 30, a cylindrical (drum)-shaped image bearing member (hereinafter referred to as photoreceptor 5) 3 is charged by an appropriate means.
An electrostatic latent image is formed on oo, and this electrostatic latent image is visualized by a developing system and transferred to a predetermined image support (hereinafter referred to as transfer material).
At the same time, the residue of the developer image (hereinafter referred to as visible image) remaining on the photoconductor 300 after transfer, that is, the developer, is scraped off with a cleaning blade 301 that is in contact with the surface of the photoconductor 300. It has a structure in which the residual developer after cleaning can be conveyed to the front side of the apparatus main body by a circular auger 302 and stored in a waste toner box 903. There is.

However, in the residual developer storage means in such conventional devices, the waste toner box 303 is installed in a hanging state at the front part of the device body, so it is difficult to dispose of the residual developer in the waste toner box 303. Also, during maintenance and inspection, it may be difficult to handle the cleaner section or the cleaner and photoconductor unit, and waste toner may be removed due to its size and capacity. This has resulted in problems such as the need to frequently replace the waste toner box.

Conventionally, as another means, as illustrated in FIG. 31, a waste toner box 3
04, and the residual developer scraped off by the cleaning blade 301 is directly stored in the waste toner box 304.

The waste toner requires a certain volume as a box 304, which causes problems such as an increase in the size of the cleaner section or the unit section of the cleaner and the photoreceptor.

[Purpose of the invention]

The present invention has been made based on the above-mentioned circumstances, and it is possible to install the cleaned visible image residue (developer in copying machines, etc.) storage section in a location that does not take up much space, and as a result, the entire device is The purpose of this invention is to provide a 5K image forming apparatus that is downsized.

[Summary of the invention]

In order to achieve the above object, the present invention provides a cleaner part or a unit part of the cleaner and the image carrier by configuring the cleaned visible image residue to be stored inside the image carrier. It is characterized by being able to be miniaturized.

[Embodiments of the invention]

Hereinafter, the present invention will be explained in detail with reference to an embodiment shown in FIGS. 1 to 27.

1 and 2 show the overall internal structure of an image forming apparatus 1, such as an electronic copying machine, according to the present invention, and numeral 1 in FIG. 1 indicates the main body of the copying machine. This copying machine main body 1 includes an image support (hereinafter referred to as a transfer material), not shown, which is conveyed via a drive system 5 and a control system 6 by a feeding device 4 consisting of a paper feed cassette 2't and a manual feed guide 3. As shown in FIG. 2, the upper half on the document table 8 side with the conveyance path leading to the paper output tray 7 as the boundary can be opened and closed.
When copying an image of a document (not shown) placed thereon, a drum-shaped image carrier (hereinafter referred to as
A charger 11tLC (referred to as photoreceptor) 10 is uniformly charged with a voltage of 500V to -900VK, and an exposure lamp 13 of an exposure device 12 is uniformly irradiated with an original image onto a focusing transmitter (product name :Self-Hox lens array) 14 is imaged on the photoreceptor 10 to form an electrostatic latent image, and this electrostatic latent image is visualized by the developing device 15 and conveyed from the feeding device 4. A visible image is transferred onto a transfer material via a transfer charger 16, further fixed by a fixing device 17, and ejected to the paper ejection tray 7, while the photoreceptor I after the transfer.

The developer (hereinafter referred to as toner) remaining on the toner is cleaned by a cleaning device 18, and the static electricity is removed by a static eliminator 19.

That is, the feeding device 4 can feed out the transfer material P accumulated in the paper feeding cassette 2, for example, by rotating the half-moon-shaped paper feeding roller 21 so as to form the furrows shown in FIGS. 3 to 6. The paper feed row 221 enables the main drive system and the spring clutch 22 to be connected to and disconnected from each other. When the rotation of the paper feeding roller 21 is stopped by being locked to a protrusion 22IL protruding from the sleeve of the sleeve of , the paper feed roller 22 is rotated one rotation to feed the transfer material P so that it reaches a pair of feed rollers consisting of a drive roller 25 and a driven roller 26, and the transfer material P is further transported by the pair of feed rollers 25 and 26. The alignment roller pair [1] consists of a driving roller 27 attached to the lower unit and a driven roller 28 attached to the upper unit. At this time, the pair of aligning rollers 27 and 18 are in a stopped state, and are rotated again at a timing when the leading edge of the visible image on the photoreceptor 10 and the leading edge of the transfer material P can coincide with a predetermined position. is conveyed through the front guide 29.degree. 30 so as to come into contact with the photoreceptor 10 to enable transfer. After the transfer, the transfer material P is held between a pair of holding rollers 31 and 32 and conveyed to a fixing device 17, which will be described later. The front guide 29
A peeling tape 33 is disposed, the other end of which is fixed by passing it between the nipping rollers s1 and 32, so that the transfer material P can be forcibly peeled off from the photoreceptor 10. ing.

On the other hand, 34 in the figure indicates the insertion port of the manual guide 3,
The transfer paper P inserted through this insertion port 34 is fed manually υ
The detection switch 37 is actuated by passing the transfer material P between the pair of rollers 35 and 36, and in this state, when the copier presses the button, the drive roller 35 of the pair of manual feed rollers 35 and 36 is rotated to move the transfer material P to the above-mentioned location. Lining roller pair 27.
A similar transfer process is carried out by feeding the paper into the paper feed roller 28, and at this time the paper feed roller 2 is controlled so as not to rotate. Further, as shown in FIG. 4, one lower drive roller 35 of the pair of manual feed rollers is arranged obliquely to the traveling direction of the transfer material P (indicated by a solid arrow), and the other upper driven roller 36 is formed into a spherical shape, thereby working to correct the skew of the transfer material P.

7 and 8 show the driving mechanism of the document table 8. A guide plate 41 is provided at the bottom of the document table 8, and a retaining hole 41a formed in the guide plate 41 is inserted into the document table 8. A guide roller 43 fixed to a chain 42 that moves along the direction of movement.
The chain 42 is engaged with the gear 44, and the document table 8 is driven by the movement of the chain 42.
The hook is passed to a sprocket 45 formed integrally with the gear 44, and this gear 44 meshes with a gear 47 which is pivotally supported by a swinging lever 46 which rotates about its central axis. The chain 42 is moved by removably meshing with a gear 50 that is pivotally supported by one end of the lever 48 via a stud 49 and driving the gear 50 to rotate. A driving force from a drive motor 51 is applied to a gear group 50 which is pivotally supported on the rotary lever 48.
t 5J t 54, and the rotation lever 48 is always biased with the other end upward by a spring 55 in a direction in which the toothbrush and the gear 50 are disengaged from the gear 47. and the other end is connected to a solenoid 57 via a connecting rod 56, and the suction action of the solenoid 57 causes the rotating V-bar 48 to move in the X direction (reversely) shown in FIG. clockwise) so that the gear 50 meshes with the gear 47. At this time, the suction force of the solenoid 57 is set to be stronger than the tension of the spring 55, and the gear 50 is always moved upward and in the direction of engagement with the pawl gear 47 during rotation due to the force applied to the tooth surface meshing with the gear 47. The drive motor 5 is lifted to ensure engagement between the two.
When the main drive is stopped due to the stop of gear 1, the rotational force to lift the gear 50 disappears, so the rotation lever 48 is rotated clockwise by the biasing force of the spring 55, and the gear 50 is removed from the gear 47. It has become. Further, a positioning plate 58 is attached to the chain 42, and this plate 58 operates a microswitch 59 fixed to a fixed frame (not shown), and when the microswitch 59 is pressed during the initial copy operation, the transfer The material P is fed, the chain 42 is rotated, and then when the plate 58 presses the micro switch 59, the drive motor 51 is stopped, the gears 47 and 50 are disengaged, and the document table 8 is stopped. This is what has become.

In this case, the gear 47 and the gear 50 have idle rollers (not shown) to keep the distance between their axes constant when they mesh and rotate. Furthermore, this drive mechanism is such that the document table 8 is connected to the main drive system by operating the solenoid 57 once, and the previously fed transfer material is already transferred when the next sheet is fed. The transfer material conveyance path is set so that the paper has been completely discharged. Furthermore, in continuous copying, it is possible to achieve one copy per rotation of the document table by issuing a paper feed signal.

9 to 11 show an exposure apparatus 12, in which an exposure lamp 13, a focusing transmitter 14,
Each component such as the static eliminator 19 and the reflection plates 62 and 63 are assembled. The fixed frame 61 also serves as a holding member so as to vertically hold the focusing transmitter 14, and a temperature fuse 64 is positioned and fixed at a proper position. That is, the exposure device 12
A pair of upper and lower reflectors 62.6 reflect the light from the exposure lamp 13.
3 to illuminate the original placed on the original platen 8, and constitutes a static eliminator 19 to be described later.
The upper reflecting section 66 of 5 illuminates the original by reflecting the light Ll from the light source of the exposure land 13 and the reflection side to the transmitter 14, thereby making it difficult to form shadows even if the original has unevenness. It has become. Further, an opening 63a and a reflecting portion 63b are formed in the lower reflecting plate 63 so that the light from the exposure lamp 13 can be guided directly onto the photoreceptor 10, and the direct light L2 causes the photoreceptor 10 to be charged before being charged. It is possible to eliminate static electricity.

Furthermore, both ends of the exposure lamp 13 are held by power supply terminals 67 as shown in FIGS. 69 is screwed together, and by the rotation of this screw 69, the exposure lamp 13 can be moved up and down so that the position of the exposure lamp 13 relative to the reflector plate 62, 63 can be variably adjusted. The balance is maintained so that a uniform and even copy image can be easily obtained.

A static eliminator 65 constituting the static eliminator 19
opens and closes in accordance with the movement of the document table 8, closes when an electrostatic latent image is being formed on the photoreceptor 10, and opens at other times to direct light from the exposure lamp 13 onto the photoreceptor 10. The opening/closing mechanism is structured as shown in FIGS. 12 and 13 to reduce toner consumption by erasing excess potential of the photoreceptor 10.

That is, the static eliminating shutter 65 has a light shielding member 65 on the back surface.
A kick member 72 is provided at the bottom of the document table 8 in conjunction with a cam mechanism that is always biased in the closing direction by a spring 71 to align the transfer material and replenish toner.
The kick member 72 rotates the first actuator 73 by the movement of the document table 8 which moves in the input direction at the start of the copying operation. This first actuator 7
3 is adapted to be returned by the biasing force of a spring 74 when the document table 8 is moved in the opposite direction to the A direction and rotated in the opposite direction, and is pressed against the sleeve 76 by a spring 75. The second actuator 77 is rotated. One end of the spring 78 is caught in a groove (not shown) formed at one end of the sleeve 76, and
The other end of this spring 78 is hooked onto a first cam 79. A protrusion 76a is formed on the sleeve 76, and when the second actuator 77 is caught on this protrusion 76m, rotation of the sleeve 76 is inhibited, the biasing force of the spring 78 is released, and the first cam 79 is rotated. When the second actuator 77 rotates, the second actuator 77 comes off the protrusion 76g of the sleeve 76, and the sleeve 76 rotates. At this time, the drive gear 80 moves in the direction of arrow B. When the first cam 79 rotates in the same direction, the first cam 79 also rotates in the same direction due to the biasing force of the spring 78. This first cam 79 has a large diameter portion 79.
A and a small diameter portion 79b are formed, and the large diameter portion 79a has a first shaft 74-a whose one end is fixed to the rotational shaft 81 of the second actuator 77 when the first cam 79 is stopped.
When the other end of 82 comes into contact and the first cam 79 rotates, the first lever 82 rotates and stops when it comes into contact with the small diameter portion 79b. The rotary support shaft 81 rotates by a rotational amount of = , and the operating lever 83 fixed to the rotary support shaft 81 is rotated. This operating lever 83 moves the static eliminating shutter 65 to the spring 7.
1 in the opening direction (the direction of transition from the solid line state to the dotted line state in FIG. 9), and the return force is due to the biasing force of the spring 71 that biases the static elimination shutter 65. Further, 84 in the figure is a second cam attached to the first cam 79 so that its adjustment position can be changed, and is formed with a large diameter part 84a and a small diameter part 84b. When the first cam 79 is stopped, one end of the swinging lever 85 is pressed into contact with the biasing force of the striped ring 86, and when the other end of the swinging lever 85 is in contact with the protrusion 87a of the sleeve of the spring clutch 87, the spring clutch 87 is driven. On the other hand, the rotation of the second cam 84 causes the swing lever 85 to
The other end is removed from the protrusion 87a of the sleeve of the spring clutch 87, and the driving force is transmitted by the biasing force of the spring 86 to rotate the shaft 88, thereby transferring the transfer material shown in FIGS. 3 and 4. The driving force is transmitted to the pair of aligning rollers 27 and 28 of the feeding device 4. Further, reference numeral 89 in the figure is a spring clutch attached to a shaft 90 that transmits driving force to a toner replenishment mechanism of the developing device 15, which will be described later. is locked, and the energization of this solenoid 92 causes the tip of the operating rod 93 to move to the protrusion 9.
1, the shaft 90 of the spring clutch 89 rotates and drives the toner supply mechanism.

By the way, the charger 11 is the ninth
As shown in the figure, a charging wire 101 and a shield 102
The distance between the photoreceptors 10 is set to 7:9, and the inflow current ratio is 7:1.
The electrostatic latent image formed on the photoreceptor 10 by image exposure by the exposure device 12 is transferred to the developing device 15 described later, and is visualized with toner. It is now possible to do so.

The photoreceptor 10, together with the charger 11 and the cleaning device 18 (to be described later), is made into a car. The organic photoconductor layer formed on the transport layer is coated to a thickness of 17 to 23 μm, and the front flange 106 and the rear flange 107 on both end faces are made of plastic material. It is made of a 10 to 10 conductive plastic material (for example, Polyayatal ES-5 or EB-10 manufactured by I-Replastic Co., Ltd.) and is grounded through this rear flange 107, fulfilling the function of a photoreceptor. .

The cleaning device 18 also includes a light shield plate 1 covering the upper part of the cleaning device 18.
It is made by cleaning the toner remaining on the photoreceptor 10 after transfer, and is made of polyurethane rubber (55°
The cleaning blade 112 and the recovery blade 113 are arranged such that the ridgeline of the cleaning blade 112 has a contact angle of 1 to 5 degrees with the tangent to the photoreceptor 10, and the pressing The load is 0.8 to 1. OVm'' to reduce damage to the surface of the photoreceptor 10.

That is, the toner remaining on the photoreceptor 10 is removed by the cleaning blade 112 attached to the first support plate 114.
This scraped toner is completely scraped off by
The toner is adhered to the lower second support plate 115 or received by the cover blade 113, and is temporarily conveyed into the toner storage box 117 by the spiral-shaped conveyance auger 116 shown in FIG. 119, a rudder sprocket 120, and a toner carrying auger 121 to be introduced into the photoreceptor 10 and housed therein.

Furthermore, the charge remaining on the photoreceptor 10 after cleaning is
As shown in FIG. 9, the static electricity is eliminated by light (static elimination light) L2 directly guided from the exposure device 12, and the static elimination effect is achieved through the opening 63. of the lower reflector plate 63.
This is done by reflecting the static eliminating light L2 guided by the reflecting portion 63b and irradiating the photoreceptor 101/C through the light opening 111a opened in the light shield plate 111. As shown, an air discharge port 111b is formed adjacent to the light intake port 111a, and allows the air inside the cartridge, in which a large amount of dioscin and other products are generated due to negative charging, to be efficiently discharged to the outside. Each component is assembled to a frame 130 that constitutes the cartridge body.

The frame 130 includes a rear frame 131, a front frame 132, a cleaner box 133, and a reinforcing frame 134 having an exposure slit 134a.The rear frame 131 has a pair of upper and lower pin holes for positioning the rear side of the charger 11. A pair of upper and lower pins 103.degree. 103 provided on the rear side of the charger 11 are fitted into this pin hole 135 and positioned. Further, one of the pins 135 is not made of a conductor that can be electrically connected to the charging wire 101 of the charging charger 11, but is configured as a trap so that a high voltage is applied from the main body by a conductive elastic member (not shown). Further, a pair of upper and lower positioning holes 104, 1 are provided on the front side of the charger 11.
04 is formed, and a bracket 136 is inserted into this hole 104 from the outside via a drum shaft flange 141 having a drum shaft 142 fitted to the front flange 106 of the photoreceptor 1θ and a front frame 132. An integral pin 137 is inserted to position the charger 11. Further, in this case, the rotational drive of the photoreceptor 10 is performed by coupling a power transmission member (not shown) provided on the rear flange 107 of the photoreceptor 10 with a power transmission member provided on the main body side. - The driving force of 116 and 121 is
A coupling pin (not shown) is provided at the tip of the toner carrying auger 121 to connect the front flange 10 of the photoreceptor 10.
6, and the toner storage box 117 is used as a handle when taking the cartridge body in and out of the apparatus body 1, and is formed in the apparatus body 1 (not shown). The cartridge can be taken in and taken out along the guide member.

15 to 19 show a developing device 15 that visualizes the electrostatic latent image formed on the photoreceptor 10, including a magnet roller 152 rotatably supported by a support frame 151, a doctor 153, It is composed of a stirring shaft 156 having a scraping plate 154 and stirring blades 155, etc. A handle 157 is rotatably attached to the support frame 151, and two handles are provided on both sides of the handle 157.
Guide pins 158 and 159 of the book are respectively protruded at the same position. These pins 158, 159 are as shown in FIG.

Insert one pin 158 into the guide groove 161 of the retainer plate 160 fixed to the top frame on the main body side and attach the support frame 1.
The other pin 159 serves as a pivot point for the entire holder plate 1.
The developing device 15 can be engaged with a retaining groove 162 formed on one side of the main body to position the gap between the developing device 15 and the photoreceptor 10, and the developing device 15 can be held in place by holding the handle 157. When inserting into the top frame, the pin 159 and the back side of the support frame 151 serve as a guide.

And 163 in the figure is Hola A for toner replenishment? -And,
There is a replenishment roller 1 made of sponge material in the opening on the bottom side.
64 is provided, and this replenishment roller 164 is connected to a rotating shaft 165.
The developer powder in the Honno 9-163 is supplied into the main body by being fixed to the main body, and the main body is of a plug-in type.

In other words, the base 163 has a protruding piece 166 formed on the front end face that is inserted into a hole 167 that opens on the front side of the device main body 15, and a claw portion of a locking lever 168 provided on the rear side. 169 is fixed by pushing it into a hole 170 opened on the rear side of the apparatus main body 15.
Toner replenishment is performed by transmitting driving force from the main body to a gear 171 fixed to the main body. Additionally, an upper cover 172 and a side cover 17 that constitute the device main body 15 are also provided.
3 are formed with ribs 174 and 175, respectively, and these ribs 174 and 175 form supporting guides when the hopper 163 is installed, and also lift the locking lever 168 upward when detaching the hopper 163. Therefore, the side cover 173 can be easily replaced by removing the claw part 169 from the hole 170 on the side of the device main body 15 and removing the hole #163.
- When the hopper 163 is removed, the hopper 163 is tilted inward around the rotating shaft 176 (direction of arrow H in Fig. 15).
The upper opening of the device main body 15 into which the device is inserted can be sealed tightly.

By the way, the main body of the developing device 15 contains a developer which is a mixture of developer powder and a magnetic material (carrier).
By transmitting the driving force from the main body side to the gear 177, the stirring shaft 156 is rotated in the direction of arrow Y in FIG. Since the developing pole is arranged so that several kinds of transport poles (using fixed magnets) are positioned facing the surface of the photoreceptor 1°, the developer is attracted to the magnetic roller 152 and attached to the doctor 153. After forming the electrostatic latent image on the photoreceptor 10 to a predetermined thickness at the development pole position, the electrostatic latent image is developed 1. After development, the developer advances in the direction of rotation of the sleeve of the magnetic roller 152, is scraped off by the scraping plate 154, and is deposited around the stirring shaft 156 again.

Further, as shown in FIG. 19, a developer concentration detection device 128 is incorporated in the scraping plate 154, and an electrical contact 179 of this detection device 178 is made to protrude from the front frame on the front side of the device main body 15. Scraping board 154
The detecting device 178 detects developer powder and magnetic powder in the developer. A signal is output to control the developer powder concentration to a predetermined amount by detecting a change in the mixing ratio of the toner.
It has a structure in which developer powder is replenished by rotationally driving the developer.

In this way, the above-mentioned developing system photoreceptor l.

The visible marks formed thereon are transferred onto the transfer material P by the transfer charger 16, and the transfer material P after transfer is
As shown in FIG. 3, after the transfer material is peeled off with the rear side peeling tape 33, the transfer material is neutralized by a static elimination member (for example, a zerostat) disposed continuously in the transfer charger 16, and then guided to the fixing device 17. .

As shown in FIGS. 20 to 23, this fixing device 17 has an upper unit 182 that can be separated into upper and lower units, and transfers a transfer material P on which a visible image has been transferred to a heat source of an upper unit 182 via a guide 181. ) o-51ss and lower unit 18
It is sent to the fixing section between the press roller 185 of No. 4,
190℃±20℃ heat and 400~10009/an
It is designed to be fixed by tD linear pressure,
Both the upper and lower units are constructed of a copying machine main body 1 that opens in a clamshell shape for easy maintenance, inspection, paper jam removal, etc.
It has a configuration in which it is attached to both the upper and lower frames of
A locking mechanism 186 of the copying machine main body 1 is installed in the upper unit 182, and a locking claw 186a of the locking mechanism 186 is engaged with an engagement hole 188 formed in the frame 187 of the lower unit 184. It is. The heat roller 183 attached to the frame 189 of the upper unit 182 is made of, for example, an aluminum sheet material (φ23) with a wall thickness of about 1 inch, and its surface is coated with Teflon resin to prevent toner from adhering. It has a configuration in which a heater lamp 190 consisting of a heating Halodan lamp (900W) is inserted into the holder, and both ends are fixed by a front electrode 192 and a rear electrode 193 attached to insulating members 191, 191, and In order to provide the heat roller 183 with the ability to reach 190° C. within 25 seconds with the lamp heat of the 900 W halogen lamp 190, it is effective to make the wall thickness of the heat roller 183 1.5 mm or less. The relationship between the W number of the lamp, the time to reach 190°C (T), and the wall thickness of the heat roller 183 is shown in FIG. Thickness is 1.0
each case is shown). Further, the heat roller 1
A heat insulating drive gear 194 made of, for example, polyphenylene sulfide and a sliding bearing 195 are provided at the end of the heat roller 83 . At the same time, the frame 18 is connected to the frame 18 via the sliding bearing 195.
9 is installed with a heat insulating function. Furthermore, 196 in the figure is a thermistor, which is applied to the heat roller 183 with an optimum pressing force of 80 to 1209/lt via a plate spring 197.
said frame 189 so that it can always be in contact with
The surface temperature of the heat roller 183 is increased to 19
The heater land 190 is turned on to maintain the temperature at 0°C±20°C.
It can be controlled by turning it off. Reference numeral 198 in the figure denotes a light shielding plate attached to both ends of the heater land 190, which reduces light leakage when inspecting the heater lamp, and serves as a guide when installing the heater land 190 when assembling the fixing section. Further, in the figure, 199 is a temperature fuse, which is attached to the frame 189 via a holder 200, and this holder 200 is, for example, a temperature fuse. It is made of a heat-resistant resin such as rifhenylene sulfite, and the temperature fuse 199 is accurately positioned with respect to the heat roller 183 to ensure stable operation of the temperature fuse 199. Further, in the figure, 201 is a cleaning blade made of silicone rubber or the like, and is designed to scrape off the toner after fixing that slightly adheres to the heat roller 183.

On the other hand, the press roller 185 has a core metal with a diameter of 8 cm, a silicone rubber collar with a wall thickness of 8 m, and a hardness of 20° to 30° (JIS-A scale), and a line connecting the center of the heat roller 183. By tilting the vertical line by 10' to 12 degrees, the rear end of the transfer material P is prevented from jumping up, and the supporting member 202 is rotatably attached to the shaft via a bush 203. This support member 20
2 and the front heat roller 183 by the pressure spring 204.
The heat roller 183 can be moved by applying pressure to the heat roller 183. Reference numerals 205 and 206 in the figure are paper discharge rollers that feed the transfer material P to the paper discharge tray 7 side. 1
The angle formed by the line connecting the contact point of 85 and the contact point of paper ejection rollers 205 and 206 forms an angle of 00 to 20 degrees and is located on the lower side.
gAn2~100V#+2 paper) K can be prevented from curling (in this case, if the angle is 30° or more, there is a risk that cardboard, etc. of 80g/In2 or more may curl downwards). ). The lower paper ejection roller 205 is formed by press-fitting a rubber roller 205b made of, for example, butadiene acrylonitrile rubber into a stainless steel shaft 105a, and is held at both ends by the frame 187 via slide bearings 207. The ends of the support member 202 that supports the press roller 185 are mounted on the sliding bearings 207, 207 at both ends, so that the support member 202 rotates about the axial center of the lower paper ejection roller 205. Supported for movement. A driving gear 208 is provided at the rear end of the lower paper ejection roller 205.
0B is a gear 2 provided at the end of the press roller 185.
09 through an intermediate gear 210, and the press roller 1
The intermediate gear 210 is supported by a support rod 211 that rotates around the axis of the press roller 185, and its free end is connected to the lower paper ejection roller. 205 , the center-to-center distance between the gear 209 of the press roller 185 and the gear 208 of the lower paper ejection roller 205 is always maintained at an appropriate distance. The gear groups 208, 209, and 210 can always operate well even when the press roller 185 is moved up and down. At this time, the lower paper ejection roller 205
Since the press roller 185 driven by the heat roller 183 is driven via the gear group 208, 209, 210, its circumferential speed depends on the thermal expansion of the press roller J850. 18
If the circumferential speed of the press roller 185 is set to increase by 2 inches when the paper sheet 5 thermally expands during fixing, wrinkles etc. can be prevented from occurring and stable paper feeding performance can be obtained.

Further, the upper paper ejection roller 206 has a structure in which two rollers made of polyacetal are integrally formed on each of the left and right sides and attached to the upper frame 189, and the center portion thereof is pressed by a spring material 212 and pressurized. The lower paper ejection roller 2
05, and a paper discharge detector 213 is installed near the contact point with the lower paper discharge roller 205.

Furthermore, 214 in the figure is a fixing section consisting of the heat roller 183 and press roller 185, and paper ejection rollers 205, 2.
A peeling claw made of heat-resistant resin such as polyphenylene sulfide is provided between the heat roller 183 and the heat roller 183 with an optimum force of 10 to 20 g, and is supported via a spring material 215. , is configured to also serve as a guide for the transfer material P.

That is, the heat roller 183 and the press roller 18
The transfer material P, which has passed through the fixing section between 5 and 5, is prevented from being wrapped around the heat roller 183 by the peeling claw 214, and is sent between the paper ejection rollers 205 and 206, and further passes between the paper ejection rollers 2, 5, and 206. The transfer material P that has passed is transferred to the paper ejection roller 2.
Excess charge on the transfer material can be removed by contacting the extension part 189a of the upper frame 189 of the fixing section, which is installed on the common tangent line of 05.206 at an angle of 45 degrees or less with the tangent line. Additionally, the frame 189 is grounded, thereby eliminating the need for separate static elimination means.
This makes it possible to easily remove static electricity after fixing the transfer material, and prevents the transfer material from curling after being ejected.

By the way, the lower paper ejection roller 205 attached to the lower fixing unit 184 described above is supported by a cut-and-raised portion 187a formed in the lower frame 181.
This cut and raised portion 1871L is 5IIllI in the front and rear.
If the lower paper ejecting roller 205 is allowed to move freely with a certain margin, the support plate 20 that supports the press roller 185 can be moved freely.
2 can also be made freely movable, and the press roller 18
It is now possible to move around 50 degrees.In this state, the copying machine body 1
When the upper fixing unit 182 of
7 to position the lower paper ejection roller 205 of the lower fixing unit 184, the lower paper ejection roller 205 and the upper paper ejection roller 206 can always be maintained parallel to each other. Since the roller 183 and the press roller 185 are always in parallel contact with each other to obtain an optimal contact state, even if the fixing section is separated vertically, stable paper feeding performance is always maintained.

By the way, the photoreceptor 10, the charger 11, and the cleaning device (cleaner section) 18 shown in FIG. 9 and FIG. The toner storage box 117 is connected to the drum shaft flange 14 as shown in FIG.
1, and is assembled to the outside of the front frame 132 with a grippable distance d therebetween, and one of the sleeve portions 1
17& is placed inside the cleaner box 133, and the other sleeve portion 117b is placed inside the photoreceptor 10, and the cleaner ? A spiral-shaped conveying auger 11 is arranged in the cleaner box 133 to provide communication between the photoconductor 10 and the photoreceptor 13, and as shown in FIG.
6 into the toner storage box 1 through the sleeve portion 117a.
The residual developer of the visible image on the cleaned photoreceptor 10 deposited in the cleaner box 133 facing inside the toner storage box 1 is removed by the rotation of the transport auger 116.
17 and the residual developer introduced into this toner storage box 117 is passed through a ladder zorokerato 118, a ladder tune 119, and a ladder zorokerato 120 to a S/9 spiral-shaped conveyor The drum is transported to the photoreceptor 10 side by W-121, and this transport auger 121 is inserted into the insertion hole 106m of the front flan 106 on the end face of the photoreceptor 10 to support the photoreceptor 10. The drum shaft 142 of the shaft flange 141 can be carried into and housed inside the photoreceptor 10 . Further, the rotational driving force of the conveyance auger 116 is generated by rotating a drive gear 220 provided at the rear shaft end of the conveyance auger 116 through an intermediate gear 221 and meshing with a drive system on the apparatus main body (not shown). It can be transmitted and interlocked by meshing with the gear 222 of the body 10, and thereby the drive of the mechanism for transporting and carrying the residual developer from the cleaner section to the photoreceptor 10 is driven by the drive system on the main body side as well as the drive of the photoreceptor. It is linked to. Further, the toner storage box 117 also serves as a handle for the unit together with a cover that forms a conveyance path for residual developer from the Cleanagex 133 to the photoreceptor 10 side, making it convenient to handle when taking out and putting in the cartridge. I'm making it a thing. Reference numeral 223 in FIG. 1 denotes a sealing material, which is not made of an elastic member such as urethane, and is used to form an insertion hole 10 into which a shaft 142 made of residual developer stored inside the photoreceptor 10 is inserted.
6a can be prevented from clogging.

5. The present invention is not limited to the above-mentioned embodiments, and the second part of the drum-shaped photoreceptor 10 is formed into an endless belt shape as shown in the figure, and the toner storage section 23 is provided in the space of the drum-shaped photoreceptor 10.
0, and the residual developer in the cleaner box 133 may be stored in the toner storage section 230 by a toner storage box 117 equipped with a transport/carry-in mechanism. Also, in order to convey the residual developer into the inside of the photoreceptor 10)
As shown in FIG. 26, the gear 2 of the photoreceptor 10 drives the conveyance auger 116 multiple times by the drive system on the apparatus main body side.
22 is rotated via an intermediate gear 221 and a gear 220. As shown in FIG.
By engaging with the groove 231 recessed in the inner peripheral wall surface of the insertion hole 106a formed in the front flange 106 of the photoconductor 10, the carry-in auger 121 is driven in conjunction with the rotation of the photoconductor 10, and the carry-out auger 116 is driven. may be made to follow.

In addition, it goes without saying that the present invention can be modified in various ways without departing from the gist of the invention.

〔Effect of the invention〕

As explained above, the present invention transfers a developer image formed on an image carrier onto an image support, and cleans the residue of the developer image remaining on the image carrier after transfer. In an image forming apparatus equipped with a cleaning device formed by a cleaning device, the residue of a cleaned developer image is conveyed and carried into an image bearing member and stored therein, so compared to conventional devices, , the interior of the image carrier, which used to be a dead space, can be effectively used as a storage space for waste residues, and the image carrier, cleaner section, and other parts are integrated into a unit and the mechanism for transporting and carrying in the residue can be easily used when replacing the image carrier, cleaner section, and other parts. can be used as a handle, making it easy to handle and
This provides an excellent effect in that the unit section and the entire device can be made smaller.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram of the internal structure of an image forming apparatus according to an embodiment of the present invention, FIG. 2 is an explanatory diagram showing the same in an open state, and FIGS. 3 to 6 are illustrations of transfer material feeding. FIGS. 7 and 8 are schematic explanatory diagrams showing the drive mechanism of the document table; FIGS. 9 to 11 are schematic explanatory diagrams showing the exposure mechanism; FIGS. FIG. 13 is a schematic explanatory diagram showing the drive mechanism of the static eliminating shutter in the static eliminating device, FIG. 14 is a schematic explanatory diagram showing an exploded view of the charging mechanism and cleaning mechanism around the image bearing member (photoreceptor), and FIG. Fig. 19 is a schematic explanatory diagram of the developing mechanism, Figs. 20 to 23 are schematic explanatory diagrams of the fixing mechanism, and Fig. 24 is the thickness of the heat opening to the heat port of the fixing mechanism, the wattage of the heat rung, and heating. 25 to 27 are schematic explanatory diagrams showing a mechanism for transporting and storing the residue of the developer image (residual developer) inside the image carrier after cleaning by the cleaning device. , second
FIG. 8 is a schematic explanatory diagram showing another embodiment of the image carrier according to the present invention, and FIG. 29 is a schematic explanatory diagram showing another embodiment of the driving force transmission mechanism of the residue conveying means according to the present invention. , FIG. 30, and FIG. 31 are schematic illustrations showing two examples of conventional cleaning devices. DESCRIPTION OF SYMBOLS 1... Copying machine main body, 5... Drive system, 9... Transfer device, 10... Image carrier, 11... Electric charger,
12... Exposure device, 15... Developing device, 16...
Transfer charger, 18...Cleaning device, P...Transfer material, 112...Cleaning blade, 116...Toner carry-out hole, 117...Toner storage box, 12...
... Toner carrying auger, 220 ... Drive gear, 22
1... Intermediate gear, 222... Gear. Applicant's agent Patent attorney Takehiko Suzue JP Publication Day 8G1
-114276 (13)L, -Ikku--Guku-ba) Part 15, Figure 16, Figure 27, Figure 28

Claims (1)

[Claims] Transferring the developer image formed on the image carrier onto the image support,
In an image forming apparatus comprising a means for cleaning the residue of the developer image remaining on the image carrier after transfer, a means for transporting and storing the cleaned residue of the developer image inside the image carrier. An image forming apparatus characterized in that the conveying/storage means is driven in conjunction with the image carrier which is rotationally driven by a drive system of the apparatus main body.