JPH08171320A - Waste toner storing device - Google Patents

Abstract

PURPOSE: To enhance the storage efficiency of waste toner by laminating magnetic fluid at a lower part in a waste toner box and providing a permanent magnet disposed on the outer side surface of the waste toner box and a moving means for moving the permanent magnet in a vertical direction. CONSTITUTION: The magnetic fluid 23 is previously enclosed in the waste toner box 21. The ring-like permanent magnet 22 is arranged along the outside wall of the box 21. The magnet 22 is supported and connected by a feeding mechanism 24 which can be repeatedly moved upward and downward. When the magnet 22 is moved upward and downward, the fluid 23 in the box 21 is attracted and moved to a position where the magnet 22 is moved and the oscillation of the liquid level of the fluid 23 is induced. Then, the concentration of the toner is increased at the same time that the waste toner 25 stored in the box 21 is oscillated and made flat by the oscillation of the liquid level of the fluid 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste toner collecting apparatus for electrophotographic copying machines, printers, plain paper facsimiles and the like.

[0002]

2. Description of the Related Art Conventionally, as a measure for improving the storage efficiency of waste toner, the capacity of a container (waste toner box) is simply increased.

Further, as disclosed in Japanese Utility Model Laid-Open No. 62-94364, there is a method of dissolving waste toner to form a liquid to improve the storage efficiency. Hereinafter, FIG. 17 and FIG.
8, the original image obtained by irradiating the light of the copy lamp 101 is exposed on the surface 103 of the photoconductor through the optical system 102, developed by the developing device 104, and then transferred by the transfer unit 105. An image is transferred onto a sheet, fixing is performed by heating and pressurizing by the fixing device 106, and the sheet is ejected to the sheet ejection tray 107 to perform copying. At this time, the image is not completely transferred by the transfer unit 105, and the surface 103 of the photoconductor is not transferred.
The residual toner remaining on the top is collected by the cleaner 108 and processed by the waste toner collecting device 109. The waste toner collecting device 109 includes a waste toner transport unit 110, a waste toner box 111, and a heating mechanism 112.
The waste toner transport unit 110 transports waste toner from the lower end of the cleaner 108 to above the waste toner box 111 by a screw 114 that rotates in the transport pipe 113. The waste toner carrying section 110 is not always necessary when the waste toner box 111 is provided below the cleaner 108 and adjacent thereto.
The waste toner box 111 has a waste toner bottle 11 inside.
5 is a closed container in which the discharge end of the waste toner transport unit 110 is opened at the upper side.

The waste toner bottle 115 is a container that can be freely attached and taken out in the waste toner box 111. At the time of maintenance, the waste toner 116 is taken out and discarded in a collected state, and a new waste toner bottle 115 is later attached to the waste toner bottle 115 for disposal. I am trying. The heating mechanism 112 is configured by disposing the waste toner box 111 above the heating roller 117 of the fixing device 106. The fixing device 106 includes a heating roller 117 having a halogen lamp 118 therein and a pressure roller 1 disposed below the heating roller 117.
Fixing is performed by passing a sheet on which a toner image is transferred between the sheet and the sheet 19, and the temperature inside the apparatus reaches 100 ° C. or higher due to the heat of the halogen lamp 118. Heating mechanism 1
Reference numeral 12 is for heating by utilizing the residual heat of the fixing device 6, and by disposing the waste toner box 111 above the heating roller 117, the inside of the waste toner 115 is heated to 90 ° C. to 100 ° C. It has become.

[0005]

However, in the conventional method, the volume of the waste toner box is increased simply by increasing the capacity of the waste toner box.
The space efficiency of the device was very poor.

Further, in the method disclosed in Japanese Utility Model Laid-Open No. 62-94364, when the temperature of the fixing device is lowered, the melted toner is solidified again. For example, if the waiting state continues for a long time, the fixing device waits in a state where the temperature is lowered to save energy. That is, since this method does not have a separate heat source, the waste toner is not always in liquid form, and in that sense, the waste toner box has a conventional capacity (waste toner is not liquid). There is no guarantee that it can be smaller than the (state). If a separate heat source is provided, the above problem can be solved, but a space for the heat source is required, resulting in poor space efficiency, and
There is a problem that power consumption also increases.

[0007]

A waste toner accommodating device according to claim 1 is a waste toner accommodating device for accommodating untransferred toner recovered from a surface of a photoconductor by a cleaner, and a magnetic toner is provided in a lower part of a waste toner box. It is characterized in that a fluid is laminated and provided with a permanent magnet disposed on a part of a side surface outside the waste toner box, and a moving means for vertically moving the permanent magnet from an upper portion to a lower portion of the waste toner box. And a waste toner storage device.

According to a second aspect of the present invention, in the waste toner storage device, a plurality of electromagnets are provided on a part of the outer side surface of the waste toner box in place of the permanent magnet, and an energizing means for sequentially energizing the electromagnets is provided. The waste toner accommodating apparatus according to claim 1, wherein

The waste toner accommodating apparatus according to claim 3 is characterized in that the electromagnet is arranged on all side surfaces outside the waste toner box in place of the moving means. Is.

According to a fourth aspect of the present invention, there is provided a waste toner accommodating device for accommodating untransferred toner collected from the surface of a photosensitive member by a cleaner, wherein a magnetic fluid is laminated in a lower part of a waste toner box, 2. The waste toner container according to claim 1, further comprising: a permanent magnet disposed on a bottom portion outside the waste toner box, and a rotating unit configured to rotate the permanent magnet along a bottom surface of the waste toner box. It is a device.

[0011]

According to the first aspect of the invention, the annular magnet provided along the side wall of the waste toner accommodating means can be vertically reciprocated up and down by the magnet up-and-down moving means which holds the magnet. When the magnetic fluid in the storage container is attracted by the movement of the magnet means to induce oscillation or vibration on the liquid surface of the magnetic fluid, the waste toner accumulated in the storage container also acts as the magnetic fluid. Since the toner is vibrated by, the toner is uniformly dispersed in the container, and the amount of waste toner stored can be increased.

According to the second aspect of the invention, the plurality of electromagnets are arranged along the side wall of the waste toner storage means so as to act toward the inside of the container by the magnetic field. These magnets can be vertically reciprocated up and down by the magnet up-and-down moving means which holds and connects the magnets. Further, when a plurality of electromagnets are vertically energized while being intermittently energized, the magnetic fluid in the storage container is attracted with the movement of the magnetic field, so that the liquid surface of the magnetic fluid is shaken or vibrated. A stir flow is generated by the flow of the magnetic fluid that is induced. As a result, the uniform dispersion of the waste toner and the stirring and pulverization are simultaneously promoted in the container.

According to the third aspect of the invention, the plurality of electromagnets are arranged along the side wall of the waste toner storage means so that the magnetic field acts toward the inside of the container. Although these magnets are fixed, they can be energized intermittently to change the place where the magnetic force is generated. Since the magnetic fluid in the storage container is attracted and moves in accordance with the movement of the magnetic field, the uniform dispersion and waste pulverization of the waste toner can be promoted at the same time as in the second aspect.

According to the structure of claim 4, a single or a plurality of permanent magnets are rotatable in a horizontal plane so that the magnetic field acts from the bottom of the waste toner storage means toward the inside of the container. It is a holding unit that holds the magnet, and is formed by being connected to a motor that is a rotation driving unit. When the motor is rotated, a rotating magnetic field is given by the permanent magnet, and the magnetic fluid in the container starts to generate a swirl flow. This flow promotes agitation and uniform dispersion of the waste toner accumulated in the container. To be done.

[0015]

【Example】

(Embodiment 1) An embodiment of the present invention will be described with reference to FIGS.

1A and 1B are sectional views of the waste toner collecting device of this embodiment, and FIG. 2 is a schematic configuration diagram of a copying machine according to the present invention. A copying machine constructed by applying the present invention is shown in FIG.
As shown in FIG. 1, an original placing table 1 is provided on the upper surface, and an exposure optical system 2 is provided under the original placing table 1. The exposure optical system 2 includes a light source lamp 3 that scans an original (not shown) placed on the original placing table 1 while irradiating the original with light, and a plurality of reflecting mirrors 5 that guide reflected light from the original to the photoconductor 4. , And the lens unit 6 arranged in the optical path of the reflecting mirror.
Made of.

On the outer periphery of the photoconductor 4, a charger 7 for charging the surface of the photoconductor 4 to a predetermined potential, an interimage eraser (not shown), and a developing device 8 for developing the electrostatic latent image formed on the surface of the photoconductor 4. , A transfer charger 9 for transferring the toner image on the surface of the photoconductor 4 to a sheet, a cleaning device 10 for collecting the residual toner on the surface of the photoconductor 4, and a charge eliminating device (not shown)
Etc. are provided. Further, on the paper input side with respect to the photoconductor 4, a timing roller 11 that supplies paper at a predetermined timing, a transport roller set 12, a paper feed cassette 13
While the paper feed roller 14 is provided, a fixing device for fixing the toner image transferred on the paper to the paper is provided on the paper output side of the photoconductor 4. Further, the residual toner on the surface of the photoconductor 4 collected by the cleaning device 10 is conveyed by the waste toner collecting device 16 through the waste toner pipe 17 and accumulated in the waste toner box 18.

As shown in FIG. 1, the waste toner box 18 has a structure in which the bottom is supported from below.
When the state of the waste toner box that exceeds the storage limit of the waste toner 25 is detected, an alarm lamp as a warning means for notifying the storage state is connected, and the magnetic fluid 23 is sealed in the waste toner 21 in advance. There is. An annular permanent magnet 22 having a shape along the outer wall of the waste toner box 21 is arranged, and the permanent magnet 22 is supported and connected by a feeding mechanism 24 that can freely repeat an ascending / descending operation.

FIG. 4 is a detailed view of a feeding mechanism for moving the magnet up and down. Reference numeral 31 denotes a magnet fixing plate, which has a donut shape when viewed from above and has a magnet attached inside. 32 is a ball screw, 33 is a motor, 34 is a feed table, and 35
When the motor 33 rotates in the waste toner box, the ball screw connected to it rotates. When the ball screw rotates, the feed table moves up or down.

When the up-and-down reciprocating motion of the permanent magnet is performed, the magnetic fluid in the waste toner box is attracted and moves to the position where the permanent magnet has moved, so that the level fluctuation of the magnetic fluid finally occurs. It will be induced in the waste toner box.

The waste toner accumulated in the waste toner box is vibrated and flattened by the liquid level fluctuation of the magnetic fluid, and at the same time, the toner density increases, so that the waste toner of the same volume is used. More waste toner can be stored in the box.

As the material of the magnetic fluid, ferrite particles mixed with a surfactant and a solvent such as hydrocarbon oil are suitable.

Although FIGS. 1A and 1B show an example of a cylindrical waste toner box, FIG. 3A and FIG.
Even if the cross-sectional shape of the waste toner box is a shape other than a cylindrical shape or an irregular cross-sectional shape with irregularities, as shown in, if an annular permanent magnet is used along this shape, it will be magnetic in the waste toner box. Since the fluid oscillates completely freely, it becomes possible to use even a waste toner box having an irregular shape that is difficult to reach the whole by only the dispersing action depending on the weight of the waste toner.

The process of flattening the waste toner by the magnetic fluid will be described later.

(Embodiment 2) Another embodiment of the present invention will be described with reference to FIGS.
A description will be given based on FIG.

In place of the annular single permanent magnet of the first embodiment, a plurality of electromagnets are arranged together with the electromagnet fixing frame 46 so that the magnetic field acts toward the inside of the waste toner container. These electromagnets 42 are supported and connected by a feed mechanism 44 that can freely repeat the upward and downward movements. When these electromagnets are sequentially energized in the circumferential direction or in the diagonal direction while the current is intermittently applied in combination with the above vertical movements, the magnetic fluid 43 in the container induces agitation flow at the same time as the liquid level swing. Become so.

With the movement of the magnetic fluid 43, the toner accumulated in the waste toner box 41 is flattened, and at the same time, the toner density is increased. The toner 45 can be stored. Although FIGS. 5A and 5B show an example in which a cylindrical waste toner box is used, a plurality of electromagnets are used, and depending on the arrangement of the electromagnets, FIGS. 8A and 8B are shown. As shown in the drawing, the waste toner box may have a sectional shape other than a cylindrical shape or an irregular sectional shape having irregularities.

FIGS. 6A to 6P show the waste toner box 4 when the electromagnet is sequentially energized in a diagonal direction.
1 shows the states of the magnetic fluid 43 and the waste toner 45 in 1 and is (A) and (B), (C), (D), and (E).
And (F), (G) and (H), (I) and (J), (K) and (L), (M) and (N), (O) and (P), respectively. .

FIG. 7A shows a timing chart when the electromagnets are energized in the numerical order shown in FIG.
In FIG. 6, electricity is supplied based on this time chart.

(Embodiment 3) Another embodiment of the present invention is shown in FIG.
A description will be given based on FIG.

In FIGS. 9A and 9B, as in the second embodiment, a plurality of electromagnets are fixed around the entire storage container so that the magnetic field acts toward the inside of the waste toner storage container. Place it. Since the whole container is compacted by a large number of electromagnets, a feeding mechanism for raising and lowering the electromagnets is unnecessary. When the groups of electromagnets to be energized are changed in the height direction of the storage container while intermittently energizing these electromagnets sequentially in the circumferential direction or in the diagonal direction, the inside of the container is changed in the same manner as in the second embodiment. At the same time when the liquid surface fluctuates, a stirring flow is induced in the magnetic fluid.

With the movement of the magnetic fluid, the toner accumulated in the waste toner box is flattened and at the same time, the toner density increases, so that a large amount of waste toner can be accommodated in the waste toner box of the same volume.

FIG. 9C is a timing chart of energization in this embodiment, and FIG. 9D shows the number of electromagnet stages.
As shown in FIG. 9, the order is 1, 2 and 3 from the top, as shown in FIG.
The electromagnet numbers shown in are assigned.

10 (A) and 10 (B) show an example of a cylindrical waste toner box, the cross section shape of the waste toner box is changed because a plurality of electromagnets are used to switch energization. There is no problem even if the shape other than the cylindrical shape or the irregular shape having irregularities is formed.

(Embodiment 4) Another embodiment of the present invention is shown in FIG.
1 and FIG. 12 will be described.

As shown in FIGS. 11A, 11B, and 11C, a single permanent magnet 52 or a plurality of permanent magnets 52 are provided from the bottom of the container to the magnetic fluid 53 contained in the waste toner box 51. A rotating magnetic field is applied to stir the magnetic fluid 53 to generate a spiral flow.

A single or a plurality of permanent magnets are attached to be supported and connected to a motor 54 shaft and a reducer shaft for rotating the permanent magnets so that they can freely rotate in the same plane.
When the drive motor is energized and the permanent magnet is rotated, the magnetic fluid in the container moves as the magnet pole moves, so a vortex flow of the magnetic fluid is induced and the stirring action of the vortex flow causes the vortex flow inside the container. The waste toner 55 accumulated is crushed and pulverized to promote flattening.

The permanent magnet is rotated in a plane parallel to the bottom surface of the container, and the magnetic fluid in the container can move freely. Therefore, the shape of the waste toner box is shown in FIG.
It is possible to deal with shapes other than the cylindrical shape as shown in (A) and (B), irregular shapes having irregularities, and complicated shapes.

(Embodiment 5) Another embodiment of the present invention is shown in FIG.
3 and FIG. 14 will be described.

As shown in FIG. 13, the waste toner box 5
A motor 50 is arranged below the bottom surface of 1. The generation of the rotating magnetic field is shown in FIG.

In this embodiment, the action on the waste toner is the same as that of the fourth embodiment, but in the fourth embodiment, a mechanism for rotating the magnetic field is provided, while in the present embodiment, it is generated from the engine. By using the rotating magnetic field, it is possible to act on the magnetic fluid without providing a special mechanism. That is, the waste toner can be agitated simply by disposing the toner recovery container in the vicinity of a motor for driving another mechanism of the copying machine (for example, a photoconductor or a paper transport roller).

(Embodiment 6) Another embodiment of the present invention is shown in FIG.
5 and FIG. 16 will be described.

As shown in FIG. 15, reference numeral 61 denotes a magnet fixing plate which has a donut shape when viewed from above and has a magnet attached inside. 62 is a rack, and 63 is a gear 1, 6 as shown in the figure.
Reference numeral 4 denotes a gear 2, and gear 1 and gear 2 are in mesh with each other. By opening and closing the front door 65, the gear 2 rotates and the gear 1 rotates. As the gear 1 rotates, the rack 62 moves upward or downward. When the rack 62 moves, the magnet fixing plate attached thereto moves, and the magnetic fluid (not shown here) moves.

In this embodiment, the action on waste toner is the same as that of the first embodiment. However, in the first embodiment, a drive system is provided for vertical movement, whereas in this embodiment, when the front door is opened and closed. It is possible to move up and down without transmitting a drive source such as a motor by transmitting the movement of the gears by gears.

FIGS. 16A to 16E show the process of flattening the waste toner in each embodiment of the present invention. In the figure, 71 is a magnet, 72 is a magnetic fluid, 73 is waste toner,
A waste toner box 74 is in contact with a magnetic fluid on the upper side of the piled waste toner as shown in the figure, and is rotated by the action of a magnetic force applied from the outside.

[0046]

According to the first aspect of the present invention, the toner accumulated in the waste toner container is vibrated by oscillating the liquid surface of the magnetic fluid, and the waste toner is evenly distributed in every corner of the waste toner box. Since the waste toner can be stored efficiently by using the limited space of the waste toner box, the storage rate of the waste toner box can be increased and the storage amount of the waste toner can be increased.

Further, since the waste toner is vibrated and only depends on the dispersibility of the waste toner due to its own weight, the density of the waste toner is increased and it is possible to contribute to an increase in the capacity of the waste toner box.

According to the second aspect of the present invention, the operation of vibrating or vibrating the liquid surface of the magnetic fluid to vibrate the toner accumulated in the waste toner container, and the magnetic fluid is attracted to the electromagnet. As a result of the movement, the stirring effect due to the flow of the magnetic fluid occurs almost at the same time, and the stirring and pulverization of the waste toner is promoted. As a result, since the waste toner can be spread over the movement of the magnetic fluid to every corner of the waste toner box, the limited space of the waste toner box can be effectively used to accommodate the waste toner and to collect the waste toner box. Of the waste toner, which leads to an increase in the amount of waste toner contained.

Further, since the waste toner is vibrated by the vertical vibration of the liquid surface of the magnetic fluid, the same effect as tapping can be obtained and the density of the waste toner can be increased to contribute to the increase in the storage amount. .

According to the third aspect of the invention, the operation of vibrating or vibrating the liquid surface of the magnetic fluid to vibrate the toner accumulated in the waste toner container and the magnetic fluid is attracted to the electromagnet. As a result, the stirring effect by the flow of the magnetic material progresses almost at the same time, so that the stirring and pulverization of the waste toner is promoted. As a result, the waste toner can be spread throughout the waste toner box according to the movement of the magnetic fluid, and the limited space of the waste toner box can be effectively used to store the waste toner. The storage rate of the box can be increased to increase the storage amount of the waste toner.

Further, since the waste toner is vibrated by the fluctuation of the liquid surface of the magnetic fluid, the same effect as tapping can be obtained, and the density of the waste toner is increased and the storage amount is increased.

According to the fourth aspect of the present invention, the stirring and pulverization of the waste toner accumulated in the waste toner box is promoted by the action of the spiral flow induced by stirring the magnetic fluid in the container. Since the magnetic fluid can move freely inside the container, the waste toner stirred and crushed by this movement spreads to every corner, and the space of the waste toner box is effectively used. To increase.

[Brief description of drawings]

FIG. 1A is a cross-sectional view of a waste toner storage device according to the present invention. FIG. 3B is a top view of the waste toner container according to the present invention.

FIG. 2 is a configuration diagram of a copying machine according to the present invention.

FIG. 3A is a sectional view of another embodiment of the waste toner container according to the present invention. FIG. 6B is a top view of another embodiment of the waste toner container according to the present invention.

FIG. 4 is a side view of a magnet type vertical movement mechanism.

FIG. 5A is a cross-sectional view of another embodiment of the waste toner storage device according to the present invention. FIG. 6B is a top view of another embodiment of the waste toner container according to the present invention.

FIG. 6A is a diagram showing the direction of energization of the electromagnet. (B) It is a figure showing the state of the liquid level movement of the magnetic fluid in (A). (C) It is a figure which shows the direction of electricity supply of an electromagnet. It is a figure showing the state of the liquid level movement of the magnetic fluid in (D) and (C). (E) It is a figure which shows the direction of electricity supply of an electromagnet. (F) It is a figure showing the state of the liquid level movement of the magnetic fluid in (E). (G) It is a figure which shows the direction of electricity supply of an electromagnet. It is a figure showing the state of liquid level movement of magnetic fluid in (H) and (G). (I) It is a figure which shows the direction of electricity supply of an electromagnet. (J) It is a figure showing the state of the liquid level movement of the magnetic fluid in (I). (K) It is a figure which shows the electricity supply direction of an electromagnet. It is a figure showing the state of liquid level movement of magnetic fluid in (L) and (K). (M) It is a figure which shows the direction of electricity supply of an electromagnet. It is a figure showing the state of liquid level movement of magnetic fluid in (N) and (M). (O) It is a figure which shows the direction of electricity supply of an electromagnet. It is a figure showing the state of liquid level movement of a magnetic fluid in (P) and (O).

FIG. 7A is a timing chart of ON-OFF of the electromagnet. (B) It is a figure which shows the number of an electromagnet.

FIG. 8A is a cross-sectional view of another embodiment of the waste toner storage device according to the present invention. (B) is a top view of another embodiment of the waste toner container according to the present invention.

FIG. 9A is a cross-sectional view of another embodiment of the waste toner storage device according to the present invention. (B) is a top view of another embodiment of the waste toner container according to the present invention. (C) is a timing chart of ON-OFF of the electromagnet. (D) It is the figure which showed the number of steps of an electromagnet. (E) It is a figure which shows the number of an electromagnet.

FIG. 10A is a sectional view of another embodiment of the waste toner container according to the present invention. (B) is a top view of another embodiment of the waste toner container according to the present invention.

FIG. 11A is a cross-sectional view of another embodiment of the waste toner storage device according to the present invention. (B) It is a figure showing the method of giving a rotating magnetic field. (C) It is a figure showing the method of giving a rotating magnetic field.

FIG. 12A is a cross-sectional view of another embodiment of the waste toner storage device according to the present invention. (B) is a top view of another embodiment of the waste toner container according to the present invention.

FIG. 13 is a cross-sectional view of another embodiment of the waste toner storage device according to the present invention.

14 is a diagram showing a magnetic field generated by rotation of the motor shown in FIG.

FIG. 15 is a side view of another embodiment of the waste toner container according to the present invention.

FIG. 16A is a diagram illustrating a process in which toner is flattened. FIG. 6B is a diagram illustrating a process in which toner is flattened. FIG. 6C is a diagram illustrating a process in which toner is flattened. FIG. 6D is a diagram illustrating a process in which toner is flattened. FIG. 6E is a diagram illustrating a process in which toner is flattened.

FIG. 17 is a diagram illustrating an example of a conventional device.

FIG. 18 is a configuration diagram of a copying machine using a conventional technique.

[Explanation of symbols]

 1 Document Placement Table 2 Exposure Optical System 3 Light Source Lamp 4 Photoreceptor 5 Reflector 6 Lens Unit 7 Charging Charger 8 Developing Device 9 Transfer Charger 10 Cleaning Device 11 Timing Roller 12 Conveying Roller 13 Paper Feeding Cassette 14 Paper Feeding Roller 15 Fixing Device 16 Waste toner recovery device 17 Waste toner pipe 18 Waste toner box 21 Waste toner box 22 Permanent magnet 23 Magnetic fluid 24 Feed mechanism (movement of permanent magnet up and down) 25 Waste toner 31 Magnet fixing plate 32 Ball screw 33 Drive motor 34 Feed table 35 Waste toner Box 41 Waste toner box 42 Electromagnet 43 Magnetic fluid 44 Feed mechanism 45 Waste toner 46 Electromagnet fixing frame 51 Waste toner box 52 Permanent magnet 53 Magnetic fluid 54 Drive motor 55 Waste toner 61 Magnet fixing plate 2 rack 63 gear 1 64 gear 2 65 front door 66 waste toner box 71 magnet 72 magnetic fluid 73 waste toner 74 waste toner box 101 copy lamp 102 optical system 103 photoconductor 104 developing device 105 transfer unit 106 fixing device 107 discharge tray 108 Cleaner 109 Waste toner collecting device 110 Waste toner transport unit 111 Waste toner box 112 Heating mechanism 113 Transport pipe 114 Screw 115 Waste toner bottle 116 Waste toner 117 Heating roller 118 Halogen lamp 119 Pressure roller

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Miyaji 22-22 Nagaike-cho, Abeno-ku, Osaka-shi, Osaka

Claims (4)

[Claims] 1. A waste toner accommodating device for accommodating untransferred toner collected from a surface of a photoconductor by a cleaner, wherein a magnetic fluid is laminated in a lower part of a waste toner box, and a part of a side surface outside the waste toner box. A waste toner storage device comprising: a permanent magnet provided and a moving means for vertically moving the permanent magnet from an upper portion to a lower portion of the waste toner box. 2. The permanent magnet is replaced with a plurality of electromagnets on a part of the outer side of the waste toner box, and an energizing means for sequentially energizing the electromagnets is provided. Waste toner storage device. 3. The waste toner accommodating apparatus according to claim 2, wherein the electromagnet is provided on all side surfaces outside the waste toner box, instead of the moving means. 4. A waste toner accommodating device for accommodating untransferred toner collected from a surface of a photoconductor by a cleaner, wherein a magnetic fluid is laminated in a lower part of a waste toner box, and disposed on a bottom part outside the waste toner box. 2. The waste toner storage device according to claim 1, further comprising: a permanent magnet that is formed, and a rotating unit that rotates the permanent magnet along a bottom surface of the waste toner box.