JPH03217878A - Charged particle carrier - Google Patents

Abstract

PURPOSE:To carry a large quantity of charged particles in a long distance with a simple device having a few movable parts by plurally juxtaposing individual inclined electrodes in a wide space in a conveying direction and alternately impressing oscillating voltage on them hourly. CONSTITUTION:The plural electrodes B1... which are attached in an inclined state to be opposed to a flat planar electrode A are disposed and the oscillating voltage is alternately impressed on the alternate electrodes with time by an AC power source 10 and a switching circuit 2. As to a pair of individual electrodes, the charged particles Q between them are moved toward the wider opening of the electrode with the belt synthesizing force Fr of centrifugal force Fc in the normal direction and force Fg in the tangent direction of the line of electric force. In order to eliminate an interaction between the individual electrodes adjacent to each other, a downtime is prepared until the voltage is impressed on the next electrode. During the downtime, the particles continue the movement with inertia and smoothly carried in the long distance by repeating the above movement.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a charged particle transport device.

[Prior art and problems to be solved by the invention] Charged particles refer to particles that have been charged to a predetermined amount of charge by frictionally charging insulating particles. Some forming devices use such charged particles in the developer. It can be said that the developing roller placed opposite to the photoreceptor conveys insulating toner, which is charged particles, on its circumferential surface, and the roller that conveys the toner in the reservoir toward the developing device also conveys charged particles. It can be said that it is a conveying device, and in particular, this type of device uses mechanical conveying means such as a conveying screw.

When such a mechanical transport means is used to transport charged particles, it requires a rotation drive means and a rotation support mechanism (hereinafter referred to as movable parts). Although the configuration tends to become complicated, for example, the technique disclosed in Japanese Patent Application Laid-Open No. 179360/1983, in which voltages with different phases are applied to a group of electrodes on a developer holder to transport the developer, is useful. If used, such movable parts can be eliminated, and the configuration of the developing device etc. can be simplified. However, with this technique, there is a limit to the amount of developer conveyed.

In addition, as disclosed in Japanese Unexamined Patent Publication No. 61-62077, two flat plate electrodes are arranged at an angle to each other, and a DC voltage is applied between the two electrodes to spread conductive toner between the two electrodes. A method in which the particles are transported by a method has also been proposed, but in this example, there is a constraint that the transported particles must be electrically conductive.

The purpose of the present invention is to transport charged particles in large quantities and over long distances.
It is an object of the present invention to provide a charged particle transport device that can transport charged particles and has few moving parts.

[Means to solve the problem]

In order to achieve the above-mentioned object, the present invention includes a charged particle transport device according to the present invention, which includes a plate-shaped electrode extending in one direction, and a plate-shaped electrode arranged in parallel along the extending direction of the electrode. Charged particles are supplied between a plurality of individual electrodes arranged in an inclined state such that the distance between the electrodes and the electrodes gradually increases, and the individual electrode on the most upstream side in the extension direction and the electrode. and each individual electrode arranged every other time;
It is characterized by comprising means for applying an oscillating voltage alternately over time to each of the individual electrodes and to each of the other individual electrodes arranged every other time.

Note that the plate-shaped electrode can also be an electrode provided with particle passing holes for sorting particles of different sizes.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral A indicates a flat plate-shaped electrode, and electrode B, which is also flat and plate-shaped and is inclined relative to electrode A, is arranged opposite to electrode A.

An oscillating voltage, for example a sinusoidal AC voltage, is applied between the electrodes A and B. Reference numeral 10 indicates an AC voltage power supply for applying the voltage.

By applying such an alternating voltage, an electric field is formed between the electrodes A and B, and what is shown by broken lines are the lines of electric force that form the electric field. Now, assuming that an electric field is formed in the direction in which the charged particles are attracted toward the electrode B, the charged particles Q are subjected to a centrifugal force Fc in the direction normal to the lines of electric force. Further, the charged particles Q are subjected to a force Fg which is attracted toward the electrode A in the tangential direction of the electric force lines. The resultant force on the vector of the forces Fc and Fg is Fr, and as a result, the charged particle Q moves toward the wider opening between the two electrodes due to this resultant force.

FIG. 2 shows the locus of movement of charged particles Q between electrodes A and B. Since the electric field is strong in the narrow space between the electrodes A and B, the charged particles Q move toward the wide opening while colliding with each electrode portion.

On the other hand, since the electric field is weaker in the wide space between electrodes A and B, the charged particles are returned in the opposite direction before they reach the electrodes. In this way, the charged particles move and eventually emerge from the wide aperture. Is the region R due to its inertia? This is the area where electric particles move. Note that the charged particles Q move closer to the electrode A because they have a predetermined mass and gravity acts on them. According to such a configuration, since the interval between the opposing electrodes can be set arbitrarily, a charged particle transport device with a high degree of freedom in design can be obtained.

In any case, the charged particles Q will be transported while vibrating from the narrow opening to the wide opening, but by arranging a plurality of such pairs of electrodes in parallel in the direction of transport of the charged particles, It becomes possible to transport it over long distances.

FIG. 3 shows an example of a charged particle transport device based on such a principle, and the charged particle transport device of this example has pairs of electrodes B1 to B3 arranged in the charged particle transport direction. The electrode A that should be used as one common electrode.

The charged particles are transported in the direction of arrow f, and from the opening 11 between electrode B and electrode A on the most upstream side in this direction, they have already been brought into a charged state by a charged particle supply means such as an air jet. attitude? Charged particles are connected to both electrodes B,
It is designed to be supplied to A. The charged particles supplied in this way are connected to electrode A and each electrode B1, B2.
, B3 while being conveyed in the direction of arrow f. The electrodes facing the common electrode A become divided individual electrodes, and if the number of these electrodes (B1 to B3) is increased, charged particles can be transported over a correspondingly long distance.

In the charged particle transport device shown in FIG. 3, the area indicated by the broken line is the area where adjacent electrodes are close to each other, for example, the area between the ends of the electrodes B and B2 on the same side and the electrode A. Since the electric normal line as shown in the figure is formed, in this region the charged particle Q has Fr' in the opposite direction to that shown in Figure 1.
Naru's sword comes into play.

When such a force is large, the efficiency of transporting charged particles in the direction of arrow f becomes poor.

In such a case, a charged particle transport device as described below may be used, and the charged particles can be smoothly transported over a long distance.

In FIG. 4, one electrode A extends in one direction, and a plurality of electrodes B1 to B,...
・are deployed opposite each other. Electrode A is electrode B1 to B6...
The electrodes B1 to B, etc. should also serve as individual electrodes. The latter individual electrodes are placed in an inclined state in the above-mentioned extending direction, that is, in the direction of transport of charged particles, so that the distance between them and the electrode A gradually increases, and while maintaining such an inclined position, they are placed on the insulating substrate 1. Fixed.

Each individual electrode B1 to B6... is connected to an AC voltage power source 10 via a switching circuit 2 and lead wires 4, 5. More specifically, odd numbered individual electrode groups B1, B
, B, . . . are connected to the lead wire 5, and even-numbered individual electrode groups B2, B4, B, . . . are connected to the lead wire 4, respectively.

The AC voltage power supply 10 and the switching circuit 2 alternately apply an oscillating voltage over time to each individual electrode that is arranged every other time and to another individual electrode that is arranged every other individual electrode. A means for applying the voltage is configured. Here, the individual electrodes arranged every other time are odd numbered B1, B3, B,...
If so, the other individual electrodes arranged every other individual electrode are even numbered B2, B4.
...It becomes an electrode.

When AC current is applied through the lead wire 4, an electric field as shown in Fig. 1 is formed for each individual electrode between the even numbered individual electrodes B2, B4, etc. and the electrode A, and at this time, ，
The charged particles entering through the opening 11 move to the right in the figure while vibrating up and down. At this time, the lead wire 5 is in a non-energized state.

After this, the lead wire 4 becomes de-energized, and at the same time, the lead wire 5 becomes energized.

As a result, each odd numbered individual electrode B1, B3...
An alternating current voltage is applied to each individual electrode between .

FIG. 5 shows a timing diagram of the application of AC voltage to each lead wire 4, 5, in which even-numbered individual electrodes B, B4, . . .
An alternating current voltage is applied to the odd numbered individual electrodes B1, B, . . . alternately over time.

Here, during such periodic switching of the voltage application, the application of the AC voltage is suspended for a predetermined period of time, for example, time F as shown in FIG.

The purpose of providing such a pause time is to eliminate interaction between adjacent individual electrodes. That is, when the force Fr' shown in FIG. 3 is large, the generation of this force is suppressed to smoothly transport the charged particles in a predetermined transport direction. After all, by periodically repeating the movement due to the electric field and the movement due to inertia when the application is stopped, it is possible to smoothly transport the electromagnetic particles over a long distance. Note that by narrowing the distance between the individual electrodes and the common electrode, the applied voltage can be kept low.

Also, if there is not much inertia due to the movement of charged particles,
It is necessary to set the above-mentioned pause time to zero or to a very short time.

The common electrode A may be divided into a plurality of parts, and an alternating current voltage may be applied to these parts and the individual electrodes as described above.

The configuration shown in FIG. 4 can be applied, for example, to an apparatus in which insulating toner is used as the charged particles and a large amount of the toner is transported from the storage section to the developing device over a long distance. In this case, for example, a movable part such as a toner conveying screw member is not required, and the overall configuration of the developing device can be further simplified. Also, charged particle Q
Since it makes active movements as shown in FIG. 2, both conveyance and stirring can be performed at the same time. In particular, when there are dense parts and sparse parts of the insulating toner, this stirring function can even out the density. A further important point is that even if the conveying particles are not conductive particles such as conductive toner, the conveyance can be performed.

Electrophotographic copying machines use corona discharge when transferring the developed image on the photoreceptor to transfer material such as transfer paper, but when using conductive toner, the transfer due to corona discharge is difficult. It's getting harder.

Note that the oscillating voltage applying means may be one that applies a rectangular wave alternating voltage or another periodic alternating voltage, and in the case of a rectangular wave, it particularly enhances the flying effect of charged particles. be able to.

The above configuration can also be applied to a transport device for captured particles in a dust collector, and as shown in Fig. 6, an electrode with holes in a slit or mesh shape can be used as a common electrode. By using A', it becomes possible to sort particles.

By providing a particle passage hole in the common electrode for sorting particles of different sizes, when charged particles are transported while vibrating as shown in Figure 2, charged particles of a predetermined size can be Depending on the magnitude of the applied force Fr (Fig. 1),
The particles can be passed through the holes to perform particle sorting.

Incidentally, the diameter of the hole may be gradually or stepwise increased in the charged particle transport direction f, or conversely, it may be decreased, and in this way, particles of different sizes can be stratified. become.

By the way, when an alternating current voltage is applied between electrodes A and B as shown in Figure 2, charged particles Q vibrate and move toward a wide opening. By arranging them, it is possible to have a function as a dot printer or a digital copying machine, for example.

FIG. 7 is a schematic configuration diagram of an example.

Insulating toner 14, which is an example of charged particles, is stored in the container 13, and this is supplied onto a toner supply sleeve 15 (hereinafter simply referred to as sleeve), and is fed onto a sponge roller 16.
The layer is made thinner by a blade 17 or the like.

One end side of a recording electrode 19 extends from the upper part of the sleeve 15 which is rotationally driven in the direction of the arrow in the figure, and a common electrode 18 is provided at the lower part on the opposite side. Both electrodes 18 and 19 are inclined to face each other so that the interval gradually increases toward a cylindrical opposing pole 23, which will be described later.6And between one end of the electrode 19 and the sleeve 15 It is the narrowest.

As shown in FIGS. 8 and 9, the recording electrode 19 has divided electrodes 19a to 19d fixedly arranged in an array on an insulating substrate 19A, and the arrangement direction is in the axial direction of the sleeve 15. It has become.

Such divided electrodes are arranged with a predetermined linear density. For example, 4 per 1n11 or 8 per cabinet.
It's like a book. An AC voltage power source 10 is connected to each divided electrode via a lead wire 6, and a recording signal as shown by reference numeral 22 is applied to each divided electrode.

A cylindrical counter electrode 23 is placed opposite to the widest opening formed by the common electrode 18 and the recording electrode 19, and when this is intermittently rotated in the direction of the arrow, the recording medium 24 is intermittently displaced in the direction of the arrow. be driven.

Among the divided electrodes, toner starts to vibrate between the divided electrode to which the recording signal is applied and the sleeve 15, and the toner on the sleeve 15, which is an example of powder supply means, is transferred between the divided electrode and the common electrode. Move towards between 18 and 18.

Next, it is conveyed in the direction of arrow f through the gap and adheres to the recording medium 24. That is, the toner moves and adheres to the recording medium 24 only at the divided electrodes to which the recording signal is applied. In the end, one line of dots is written, and after this writing scan is completed, the recording medium 24 is skipped for one line, and the next one line is written.

In this way, a character image is recorded on the recording medium 24. For example, if it is plain paper, the character image recorded on this plain paper is fixed by a fixing device (not shown). In this case, the device will function as a dot printer or digital copying machine. On the other hand, when such a device is used together with a display device, an opaque resin sheet is used as the recording medium 24, and this is shaped into an endless belt. The character images recorded thereon are not fixed and can be erased.

That is, printing and cleaning are performed repeatedly. When used as a display in this way, the resolution may be low to some extent, so the divided electrode arrangement density may be low to some extent, and when used as a printing device on plain paper, etc., a certain level of resolution is required. Therefore, the arrangement density of the divided electrodes is set high.

A recording signal is selectively applied to each divided electrode, and in FIG. 10, the recording signal is applied for a certain period of time t. This figure shows the vibration waveform signal applied inside.

FIG. 11 shows the timing of the movement of the recording medium, the sleeve, etc., and the timing of applying the recording signal, where H indicates the rotation or signal is on, and L indicates the off. Here, t1
The time is the time it takes for the recording medium to be fed from the stock position to the recording start position.

After time t, the sleeve is parked for t3 time,
The required new toner is conveyed below the recording electrode 19. Next, the toner reaches the recording medium 24 while vibrating for a time t. That is, printing for one line is performed during the time t0. In the figure, t2 is the time during which the recording medium is skipped for one line, and such a recording operation is executed at a cycle of t1. tlit to
There is no problem even if t3 overlap as long as the system is established.

In the above example, a one-component insulating toner is used as the charged particles to be transported, but a two-component developer having a carrier and a toner may also be used. By appropriately setting the frequency of the waveform, it is possible to make only toner having a different mass from the carrier fly to the recording medium. In addition, it is effective to apply a voltage having a polarity opposite to the charging polarity of the toner to the counter electrode 23 (FIG. 7).

According to the device shown in FIG. 7, it can be used as an image forming device for dot printers, display devices, etc., and the printing configuration is simple, so it is possible to reduce the cost of this type of printing section. can be achieved. Also, power supply 18.1
9 does not come into contact with the recording medium, by arranging a plurality of devices of this type on the recording medium 24 and storing toner of a different color in each device, a color image can be obtained without color mixing. You can also do that.

Furthermore, since the distance between the electrodes increases in the direction of movement of the charged particles, it is possible to prevent particles from clogging between the electrodes.

Note that the electric field is strong between the electrode 19 and the sleeve 15, and charged particles move efficiently.
The driving time of the sleeve 15 may be shortened, thereby increasing the printing speed.

By the way, in this type of device, if the application time of the recording signal is made variable, it becomes possible to express the gradation of the image.

FIG. 12 is a diagram showing the drive timing of the recording medium and sleeve that satisfies such requirements. After time t6 (same as t in FIG. 11),
Or, immediately before this, rotation of the sleeve 15 is started and t
It rotates for only 3 hours. On the other hand, the application time of the recording signal is made variable such as 1 o el t02tt 03 1 t 04, and if it is the longest time to, the application of the recording signal starts immediately after the elapse of time t8. be done. As a result, the recording signal 22 shown in FIG. 10 is applied to the divided electrodes for the tax time. On the other hand, when the application time is shortened, such as t Of 9 t 03 I t 04, the application timing gradually becomes delayed with respect to the elapse of time t8.

As the application time decreases, the amount of charged particles transported tends to decrease, and as the application time increases, the amount of charged particles transported tends to increase.

Figure 13 shows such characteristics; as the recording signal application time increases, the amount of charged particles transported increases,
Accordingly, the reflection density increases.

That is, the density of the recorded image becomes higher. After all, gradation expression of images becomes possible by changing the application time.

In addition, in FIG. 12, after the sleeve has been driven for a time t, immediately without stopping the application of the recording signal,
The reason why the application is stopped after a delay of te time is that the voltage applied to the electrode 18 is stopped after one line of write scanning.
This is to prevent toner from remaining between the recording electrode 19 and the recording electrode 19. This prevents the remaining toner from being used in the next writing scan.
This prevents the image density from becoming excessively high.

By changing the application time in this way, it becomes possible to express gradations using only one line, and this is also possible in the case of color images.

By the way, FIG. 8 shows an example of the configuration of the common electrode 18 and the recording electrode 19, of which the recording electrode 19
is placed face down in the direction of the arrow and fixed together with the common electrode 18 in the position shown in FIG. For example, recording electrode 19
The end wall 19A1 provided at both ends of the common electrode 18
It is fixedly latched directly to or to another immovable member with a screw or the like.

As mentioned earlier, each divided electrode 19a to 19d...
Here, the charged particles are transported in the direction of the arrow f, but at this time, there is a risk that the transported charged particles may go around to another divided electrode, for example, to an adjacent divided electrode. The interelectrode wall 19A2 provided between the divided electrodes on the inner wall of the insulating substrate 19A solves this problem.

By providing such a wall between the electrodes, rectifying properties are imparted to the charged particles being transported, and the charged particles are prevented from going around to another divided electrode. In other words, its diffusion is prevented. This makes it possible to keep the amount of charged particles adhering to the recording medium constant per dot, and when the charged particles are toner, it is possible to obtain an image with stable density.

As shown in FIG. 9, the length QIll of the interelectrode wall 19A2
is shorter than the length Q2 of the divided electrodes 19a to 19d.... This is because the electric field is strong at the narrowest space between the split electrode and the sleeve 15, and there is also an air flow accompanying the rotation of the sleeve, so it is difficult for charged particles to diffuse in that area. This is because such a wall between electrodes becomes unnecessary.

However, as the distance between the electrodes gradually widens, the electric field also weakens, making it more susceptible to the influence of surrounding air currents, making it easier for charged particles to diffuse.

The inter-electrode wall 19A2 may have any length as long as it avoids such problems.

Further, the length of the inter-electrode wall 19A2 is set to be equal to or slightly longer than the length of the common electrode 18, and the lower end surface of the inter-electrode wall 19A2 does not contact the common electrode 18. be made into This is to prevent edge surface discharge from occurring between the divided electrodes and the common electrode when a recording signal is applied to the divided electrodes. If such edge surface discharge occurs, there is a risk of producing an image with missing dots, and malfunction of the electronic control circuit system due to the discharge may occur.

Such a problem can be prevented by preventing the inter-electrode wall 19A2 from coming into contact with the common electrode 18.

By the way, the recording electrode 19 shown in FIG. 8 is a divided electrode 19a.
~19d... are made into rectangular flat divided electrodes, and these divided electrodes are designated by reference numeral 1 in FIG.
It may also have a mountain shape as shown by 9a'.

A flat electrode 18a' having a width corresponding to the divided electrode 19a' is disposed opposite to the divided electrode 19a', and a large number of these electrodes are arranged in pairs. In the example of FIG. 8, the electrode facing each divided electrode is a single common electrode as shown by the reference numeral 18, but the opposing electrode may not be such a common electrode but may be an individual electrode. It is.

By using such a chevron-shaped electrode and a flat electrode in combination, an electric field as shown by the broken line, that is, an electric field divided on both sides, is formed between the two. According to such an electrode configuration, the charged particles can be vibrated and moved toward the center of the divided electric field, and can be prevented from diffusing toward the adjacent electrodes.

Regarding the angle θ inside the mountain-shaped divided electrode, the angle is increased to, for example, 180° in the portion close to the sleeve 15 (FIG. 7), and the angle is gradually decreased as it approaches the recording medium 24. You may try to make it smaller.

As shown in FIG. 7, as the distance between the electrodes 18 and 19 increases as they approach the recording medium 24, the electric field between them becomes weaker and the charged particles become easier to diffuse. By gradually decreasing θ, it is possible to make it difficult for the electric field to be diffused in a portion where the electric field becomes weak. in the end,
There is no need to provide a diffusion prevention wall such as the inter-electrode wall 19A2 shown in FIG. 8.

The recording electrode 19' shown in FIG.
9'a, 19'b... to 1#@edge board 19A'
The common electrodes 18 are arranged facing each other as shown in the figure, or individual electrodes are arranged for each divided electrode.

In this example as well, the inter-electrode wall 19A as shown in FIG.
2 is unnecessary, and the mountain-shaped electrode itself can prevent the above-mentioned diffusion of charged particles. For example, by providing a concave groove as shown by reference numeral 25 in the insulating substrate 19A', the edge surface distance can be increased, and each divided electrode 19
'al 19'b... can be made less likely to cause edge surface discharge.

This makes it possible to obtain an image of stable quality without missing dots.

Regarding the electrodes 18'18 shown in FIGS. 14 and 15, these may be individual chevron-shaped electrodes, or they may be connected in a chevron-shaped manner as a common electrode. Or,
Both the divided electrode side and the opposite electrode side can also be formed in a chevron shape.

With the device described above, as it is operated for a long time,
In areas where the electric field between the two electrodes 18, 19 (FIG. 7) is weak (where the distance is wide), there is a possibility that charged particles may be deposited.

When such deposition occurs, it becomes impossible to transport the charged particles accurately in terms of quantity, and the amount of the charged particles deposited per dot fluctuates.

In order to remove such accumulated charged particles, a vacuum device or the like may be used to suction them, but
In addition, the intended purpose can also be achieved by adopting the following method.

As shown in FIG. 16(a), during normal printing, the distance between the electrodes 18 and 19 is narrow on the sleeve 15 side.
They are each held in such a position that the interval becomes wider on the side of the recording medium 24 (FIG. 7). In this situation,
Charged particles are transported in the direction of arrow f.

In contrast, when removing the aforementioned deposits, i.e.
When cleaning is performed, the lower electrode 18 is rotated counterclockwise about the fulcrum 26 and placed in a position as shown in FIG. 2(b). In this state, the distance between the two electrodes becomes wider on the sleeve 15 side, and becomes narrower on the recording medium side.

In this state, by applying a voltage having the same waveform as the recording signal between the electrodes 18 and 19 from the AC voltage power supply 1o, the accumulated charged particles are transported in the g direction opposite to the previous case, and the sleeve 15 , and is collected and removed from between both electrodes. At this time, if the sleeve 15 is kept rotating, it can be recovered smoothly.

In addition, for the rotation drive of the electrode 18, for example, as shown in FIG. 17, it is sufficient to use a well-known rotation drive device M27 having a built-in rotary solenoid or cam.

In this way, by removing the charged particles deposited between the electrodes, the amount of charged particles attached per dot can be made constant, and when recording an image using toner or the like as the charged particles, The dot image quality can be made to have a stable density. This can be accomplished without using a dedicated cleaning means such as a vacuum device.

〔Effect of the invention〕

According to the configuration according to claim 1 of the present invention, charged particles can be transported over long distances and in large quantities with an extremely simple electrode configuration without requiring a movable part such as a charged particle transport screw member. Can be transported in large quantities.

According to the configuration described in claim 2, particles of different sizes can be sorted out with an extremely simple configuration.

[Brief explanation of drawings]

FIG. 1 is a diagram for explaining that electric lines of force are formed between opposing electrodes in order to understand the present invention, and FIG. 2 is a diagram for explaining that charged particles are transported between the opposing electrodes. Figure 3 is a diagram for explaining the principle of an embodiment of the present invention, Figure 4 is a schematic diagram of an embodiment of the present invention, and Figure 5 is a diagram of a recording signal application method to divided electrodes in the same embodiment. , FIG. 6 is a schematic diagram of another embodiment, FIG. 7 is a schematic configuration diagram of an example of a recording device using mutually opposing electrodes, FIG. 8 is a configuration perspective view of an example of both electrodes, and FIG. 9 10 is a diagram of the recording signal waveform applied between the two electrodes, FIG. 11 is a timing diagram of the swinging of the recording medium, sleeve, etc., and FIG. 12 is a diagram of the surroundings of the sleeve of the recording device. A timing diagram of an example, FIG. 13 is a correlation characteristic diagram between the recording signal application time, the amount of charged particle transport, and image reflection density, FIG. 14 is a configuration diagram of both electrodes in another example, and FIG. 15 is a peak Figure 16 (a) shows a state in which both electrodes are in the printing position, and Figure 16 (b) shows a state in which both electrodes are in the cleaning position. FIG. 17 is a diagram showing a rotating drive system for one of the two electrodes. A...Plate-shaped electrode B1, B. ...Individual electrode Q...Charged particle A'...Electrode 10 having particle passage holes...AC voltage power supply

Claims (2)

[Claims] (1) Plate-shaped electrodes extending in one direction, and arranged in parallel along the extending direction of the electrodes, each arranged in an inclined state so that the facing distance with the electrodes gradually increases in the direction. a plurality of individual electrodes, means for supplying charged particles between the most upstream individual electrode in the extension direction and the electrode, and each individual electrode arranged every other time;
A charged particle transport device comprising means for applying an oscillating voltage alternately over time to each of the individual electrodes and to each of the other individual electrodes arranged every other time. (2) The charged particle transport device according to claim 1, wherein the plate-shaped electrode is an electrode provided with particle passing holes for sorting particles of different sizes.