JP2704927B2 - Filling method for electrostatic image toner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic image forming apparatus used in copying machines and printers utilizing electrophotography .
Toner (hereinafter referred to as toner) of the toner replenishing container, and toner for electrostatic image to fill into the toner supply container such as a cartridge provided with the developing unit (hereinafter referred to as toner container)
Over a method for filling of.

[0002]

2. Description of the Related Art Toners are used in copiers and printers utilizing electrophotography. The toner generally includes a binder resin for fixing to a material to be transferred, various colorants for giving a color as a toner, other charge control agents, a magnetic material, a release agent, and a fluidity imparting agent. It is an aggregate of composite particles having a weight average particle diameter of 15 μm or less and having a sharp particle size distribution made of a material such as an agent. Usually, the above-described toner is supplied to a copying machine or a printer in a state of being packed in a toner supply container or a toner container such as a cartridge having a developing unit.

Conventionally, as a general method of filling the toner into these toner containers, an auger type filling machine shown in FIG. 3, a vibrating feeder having a grinding wheel or the like is used, and a predetermined amount of toner is filled once. The filling method which is completed by the filling operation described above has been adopted. However, with the reduction in the cost of the filling process and the reduction in copy cost, it is necessary to increase the amount of filling in a toner container of the same capacity, and a dividing filling method in which the filling operation is divided into a plurality of times has been adopted. Was. In such a divided filling method, a simple filling operation using a single filling machine or a plurality of filling machines provided on an automatic conveying line so that a maximum amount of toner can be filled in the next filling operation. In order to lower the position of the powder surface of the toner charged into the toner container by the filling operation in order between the filling machine and the filling machine on the automatic conveying line, a longer conveying time and a method of naturally settling, At most, a method has been adopted in which a single condition of vibration is applied to a toner container to lower the toner powder level in the container.

[0004]

However, as described above, conventionally, the surface of the toner powder charged in the toner container is moved before the second and subsequent divided filling operations.
It is reduced by spontaneous sedimentation or by vibrating under at most a single vibration condition, so the efficiency is poor and the toner powder level cannot be reduced in a short time. Not only is it not possible to shorten the cycle time until completion, but also there is a problem that when a required amount of toner is large, a predetermined amount of toner cannot be filled in the container. Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art, and when filling a toner container with toner, it is possible to fill a larger amount of toner in a container of the same capacity in a short time. Efficient electrostatic charge toner
And to provide a method of filling over.

[0005]

The above object is achieved by the present invention described below. That is, according to the present invention, a toner for an electrostatic image is divided into a predetermined amount of toner to be filled in a toner supply container, and the toner supply container is sequentially filled into the toner supply container a plurality of times .
In donor filling method, a portion of the predetermined amount of toner to be filled after the filling process during or filling process for filling the said toner supply container, at least two or more vertically at the same frequency in the toner supply container Stepping vibrations with different total amplitude
A method for filling a toner for an electrostatic charge image, characterized in that the total amplitude in the vertical direction is increased so as to further fill the vibrated toner supply container with toner .

[0006]

In order to solve the above-mentioned problems of the prior art, the present inventors have proposed a method of separately filling a predetermined amount of toner into a container by, for example, a first filling operation (hereinafter referred to as a primary filling operation). During or after the end, if the toner container can be vibrated efficiently, the powder surface of the toner filled by the primary filling operation close to the filling port of the container is removed.
Since it can be lowered to a predetermined position in a very short time, it is possible to secure a wider space in the toner container, and it is possible to set a larger amount of toner at the time of secondary filling. This led to the present invention. Furthermore, if the interval time between each of the divided filling operations, that is, the time required for lowering the toner powder surface can be shortened, the cycle time until the toner is completely filled into the container can be shortened. If the time required to lower the surface to the predetermined position in the toner container is longer than the time during which the container is filled with toner, not only can the production rate of the filling process be increased, Since the length of the transfer line can be shortened, space can be saved.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described in more detail with reference to preferred embodiments. First, a method of filling the toner for an electrostatic image of the present invention in the case where a predetermined amount of toner is divided and sequentially filled without using an automatic conveyance line in the toner filling step will be described. As a method of applying vibration to the toner container, when the toner container has a shape that is difficult to stand alone, or when a plurality of toner containers are sequentially vibrated, the support 41 of the toner container 40 as shown in FIG. It is preferable to use a vibration table having a plurality of fixed on the table 43. In addition, as a vibration source that can be used for the vibration table as described above, a piston vibrator using compressed air, a ball-type vibrator, an electromagnetic vibrator using electromagnetic force, and a motor having an unbalance weight (Hereinafter referred to as an eccentric motor), but it is preferable to use an electromagnetic type or an eccentric motor type from the viewpoint of maintaining stable vibration conditions at all times.

When the above-mentioned vibration table is used, it is necessary to apply vibrations to a plurality of toner containers 40 almost simultaneously on the same table. The maximum value and the minimum value of the variation of the total amplitude in the vertical direction (hereinafter, referred to as vertical amplitude) are preferably within ± 20% of the arithmetic average value, and more preferably within ± 10%. If the variation of the vertical amplitude exceeds ± 20%, depending on the set value of the amplitude, a part of the toner charged in the toner container 40 may scatter outside the filling port of the toner container 40, There is a problem that the position of the toner powder surface of the toner container 40 varies, and the filling amount to be charged in the next filling operation cannot be filled, so that a defective filling is likely to occur.

The value of the longitudinal amplitude used in the present invention is intended for toner having a weight average particle diameter of 15 μm or less under the condition that the frequency is constant. The time required for the drop is longer,
On the other hand, if the vertical amplitude is too large, the toner may scatter from the filling port of the toner container 40 depending on the positional relationship between the filling port of the toner container 40 and the toner powder surface.
It is preferably 15 mm or more and 0.8 mm or less,
It is more preferable that the thickness be 0.2 mm or more and 0.65 mm or less. Further, the total amplitude in the horizontal direction (hereinafter referred to as the horizontal amplitude) is preferably equal to or less than the numerical value of the vertical amplitude, and more preferably equal to or less than 15% of the numerical value of the vertical amplitude, from the problem of toner scattering.

A more effective vibration method for lowering the position of the toner powder surface in the toner container 40 is to give at least two or more kinds of longitudinal amplitudes so as to increase stepwise. That is, the toner in the toner container immediately after the primary filling is
Since a large amount of gas such as air is entrapped, the bulk density of the toner is in a minimum state, and the toner powder surface is located closest to the filling port of the toner container 40. As a vibration condition (first vibration condition) in which toner scattering does not occur in this state, it is essential to reduce the longitudinal amplitude. However, when the longitudinal amplitude is reduced, the excitation force is reduced, so that the toner powder surface The lowering speed becomes slow, and it takes a long time to lower the toner powder surface to a predetermined position. Therefore, when the longitudinal amplitude is set to be larger than the first vibration condition (second vibration condition) and the vibration is applied when the toner powder surface is lowered to some extent, the excitation force increases, and the speed of lowering the toner powder surface increases. Therefore, the time for lowering the toner powder surface to a predetermined position can be reduced.

As shown in FIG. 5, the relationship between the magnitude of the vertical amplitude and the equilibrium value of the toner powder surface position (the position at which the position of the toner powder surface does not change even if vibration is further applied for a long time) is as shown in FIG. In the range where the amplitude is 0.65 mm or less, the larger the vertical amplitude, the lower the toner powder surface position equilibrium value. It can be seen that the larger the vertical amplitude, the more effective. However, when the longitudinal amplitude exceeds 0.8 mm, the entire toner in the toner container tends to be flushed, which is not preferable.

Next, a description will be given of a case of a continuous type in which an automatic conveying line is used in a toner filling step. For example, as shown in FIG. 2, first, a belt type and a roller type are used in a filling method in which an automatic weighing and an automatic transfer function is provided and an automatic transfer line equipped with two or more filling machines and a divided filling is performed. Empty toner container 1 is placed on the transport line composed of
4 are sequentially set and transported to the primary filling operation unit. As a setting method, when the toner container 14 is self-supporting, the toner container 14 is directly placed on the transport line. However, when the toner container 14 is not self-supporting, or when the toner containers 14 must always be set in the same direction. Sets a toner container on a pallet-shaped toner container support 15.

The toner container or the toner container set on the toner container support is transported to a position immediately before the primary filling machine 11, where the container is weighed, and then the primary filling is performed. Is weighed by the automatic weighing machine 18 to confirm the primary filling amount of the toner. The toner container after the primary filling of the toner is automatically conveyed to the secondary filling operation unit. In the present invention, a vibration zone is provided in the middle of this conveyance, and the position of the toner powder surface in the toner container 14 is lowered to a predetermined position or less by effectively applying vibration to the toner container 14. Then, the secondary filling machine 12
Then, the toner container 14 is further filled with a predetermined amount of a part of the toner, the weight is measured again by the automatic weighing machine 19, and the total amount of the toner filled in the toner container 14 is confirmed. When the number of divisions of the filling operation is two, the filling of the toner is completed by this, but when the number of divisions is further increased, the same operation is repeated. A vibration zone is similarly provided in the middle of the conveyance between the filling operation units, and each time the toner container 14
The position of the toner powder surface inside is lowered below a predetermined position.

As a vibration source for applying vibration to the toner container, an electromagnetic vibrator and an eccentric motor vibrator are preferable, and an air-driven vibrator is less preferable, since there is little variation in frequency and amplitude in the same vibration zone. The vibration conveyance path in the vibration zone is
A method of mounting a conveyor belt on a table equipped with the above-mentioned vibration source, moving the conveyor belt at a low speed by driving a motor, mounting a roller conveyor on the table, a timer function without mounting anything on the table. There is a method of moving a toner container using a piston operation of an air cylinder provided.

The maximum value and the minimum value of the variation of the longitudinal amplitude in the same vibration conveyance path are preferably within ± 20%, more preferably within ± 10%. In the case where the variation of the vertical amplitude exceeds ± 20%, depending on the set value of the amplitude, a part of the toner injected into the toner container scatters outside from the filling port of the toner container, and the surface of the toner container is scattered. Not only is the contamination or the working environment deteriorated, but also the filling amount of the toner is insufficient, and the filling failure is likely to occur. The longitudinal amplitude is intended for toner having a weight average particle size of 15 μm or less under the condition that the frequency is constant. If the longitudinal amplitude is too large, depending on the positional relationship between the filling port of the toner container and the toner powder surface. If the toner scatters from the filling port of the toner container and the longitudinal amplitude is too small,
Since it takes a long time to lower the toner powder level,
m or more and 0.8 mm or less, preferably 0.2 m
It is more preferable that the length is not less than m and not more than 0.65 mm. Further, the horizontal amplitude is preferably at least the vertical amplitude or less, more preferably 15% or less of the vertical amplitude, from the problem of toner scattering.

A more effective vibration method for lowering the position of the toner powder surface in the toner container is to apply at least two or more longitudinal amplitudes so as to increase stepwise. That is, the longitudinal amplitudes of the first vibration zone, the second vibration zone, the third vibration zone, etc. on the transport path between the filling machines are gradually increased.
In this way, the toner powder surface can be reduced in a shorter time without toner scattering, and the toner powder surface position equilibrium value decreases. Thus, there is an effect that the filling amount of the toner in the toner container having the same capacity can be increased. However, when the longitudinal amplitude exceeds 0.8 mm, the entire toner in the toner container tends to flush, which is not preferable. As described above, when the toner container is filled with the toner by the method for filling the toner for an electrostatic image of the present invention, by effectively vibrating the toner container between each of the divided filling operations,
The filling time can be shortened and the filling amount can be increased.
In addition, as a measuring device for vibration characteristics, VA manufactured by Rion Co., Ltd. was used.
Using a -10 type, the amplitude was measured in the EQ-PP range.

[0017]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to examples of the present invention. • 100 parts by weight of styrene acrylate resin • 70 parts by weight of magnetic material • 6 parts by weight of low molecular weight polyethylene • 3 parts by weight of negative charge control agent The mixture obtained after melting and kneading the toner raw material comprising the mixture of the above formulation. Was cooled, crushed, finely crushed, classified, and externally mixed with 0.4% by weight of silica. As a result, the weight average particle diameter was 8.2 μm, 20
A toner having 0% of coarse particles of μm or more was obtained. The toner thus obtained was used in the following Examples and Comparative Examples.

Embodiment 1 FIG. 1 shows an electromagnetic vibration table used in this embodiment.
FIG. 3 shows an auger-type filling machine used in this embodiment. 8 kg of the above toner is put into the hopper 30 of the auger-type filling machine shown in FIG. 3, and 100 g of the toner is cut out with a screw having an outer diameter of 27 mm (at a rotation speed of 700 rpm), and as shown in FIG. Immediately after filling the cylindrical toner container 5 having a length of 255 mm, the surface of the toner powder in the toner container 5 was lowered while applying vibration on the electromagnetic vibration table 2. At this time, the vertical amplitude is changed between 0.1 and 0.8 mm, and the relationship of the vertical amplitude to the position of the toner powder surface (height from the bottom surface of the toner container) for each excitation time at a frequency of 50 Hz is shown. Examined. The result is shown in FIG.

As a result, when the longitudinal amplitude is 0.5 mm or more, as shown in FIG.
(0 second), the toner was scattered from the filling port of the toner container 5, but when the vertical amplitude was in the range of 0.1 to 0.65 mm, the larger the vertical amplitude, the faster the toner powder surface was reduced, and The toner powder surface position equilibrium value was also lowered, and it was found that the increase in the amount of toner to be filled during the divisional filling was effective. When the longitudinal amplitude exceeds 0.8 mm, not only the toner is easily scattered from the filling port of the toner container 5 at the initial stage of the vibration, but also the toner is in a slightly fluidized state, and the lowering speed of the toner powder surface is reduced. And the toner powder surface position equilibrium value was slightly higher. A similar tendency was obtained when the test was performed using the eccentric motor type vibration table shown in FIG. 4 at a frequency of 30 Hz to 105 Hz.

(Example 2) Using the same filling machine shown in FIG. 3 and the electromagnetic vibration table shown in FIG.
Immediately after the primary filling, a vibration frequency of 60 Hz and a vertical amplitude of 0.
Vibration was performed for 30 seconds under the condition of 4 mm, and immediately after that, when vibration was further performed for 70 seconds at a frequency of 60 Hz and a vertical amplitude of 0.65 mm, 40 g of toner could be filled by secondary filling, and a total of 140 g of toner Was filled with a vibration time of 100 seconds without scattering of the toner.

Example 3 Using the same eccentric motor type vibration table provided with one eccentric motor as shown in FIG. 3 and the same eccentric motor type vibration table as shown in FIG. 8 filled toner containers 5, frequency 50 Hz, longitudinal amplitude 0.3 m
m, after vibration for 30 seconds under the condition of horizontal amplitude 0.3 mm, and further vibration for 90 seconds at vertical amplitude 0.6 mm and horizontal amplitude 0.6 mm, 40 g of toner can be filled by secondary filling,
A total of 140 g of toner could be filled with a vibration time of 120 seconds without toner scattering. At this time, the variation of the longitudinal amplitude at each toner container setting position is such that the maximum value is + 20% and the minimum value is −20% with respect to the arithmetic average value.
13%.

Comparative Example 1 Using the same filling machine shown in FIG. 3 and the electromagnetic vibration table shown in FIG. 1 as used in Example 1, eight toner containers 5 primarily filled with 100 g of toner, frequency After vibrating for 140 seconds under the conditions of 60 Hz and a vertical amplitude of 0.3 mm, an attempt was made to fill 40 g of the toner by secondary filling, but only about 36 g could be filled, resulting in defective filling. In addition, the variation of the longitudinal amplitude at each toner container setting position was such that the maximum value was + 15% and the minimum value was -13% with respect to the arithmetic average value.

(Comparative Example 2) Using the filling machine shown in FIG.
After the toner container 5 primarily filled with g was allowed to stand for 4 minutes without shaking, the remaining 40 g of toner was tried to be secondarily filled, but the position of the toner powder surface after the primary filling was insufficient. As a result, only 18 g of toner could be filled, and the remaining 22 g of toner overflowed out of the toner container, resulting in poor filling.

(Comparative Example 3) Using the same filling machine shown in FIG. 3 and the electromagnetic vibration table shown in FIG. 1 as used in Example 1, immediately after 100 g of the toner was primarily charged into the container 5, the frequency was 60 Hz. Vertical amplitude 0.1m
After shaking for 180 seconds under the condition of m, when the remaining 40 g of toner was tried to be secondarily filled, only 32 g of toner was filled because the position of the toner powder surface after the first filling was insufficient. And the remaining 8 g of toner overflowed out of the toner container, resulting in defective filling.

(Comparative Example 4) A filling machine similar to that used in Example 1 of FIG. 3 and an unbalance weight as shown in FIG. 7 are provided only on one side of the shaft end of the motor. Using a vibration table provided with one eccentric motor, eight toner containers 5 primarily filled with 100 g of toner were vibrated for 120 seconds under the conditions of a vibration frequency of 60 Hz and a vertical amplitude of 0.4 mm. Approximately 15 seconds after the start, toner scattered from two of the eight toner containers, contaminating the outer surface of the toner container 5 and causing poor filling. When the longitudinal amplitude on the vibration table of the toner container 5 where the toner was scattered was measured, the longitudinal amplitude was 0.52 mm, which was + 30% of the arithmetic mean.

(Embodiment 4) In this embodiment, an automatic transfer path and two automatic filling machines as shown in FIG. 2 are provided, and an eccentric motor shown in FIG. Using a continuous filling method using a toner filling facility equipped with a vibration table
5 g of toner was charged. First, a toner container 14 having an inner diameter of 45 mm and a height of 270 mm is placed on the automatic conveyance path at intervals of 5 seconds.
Is set via a toner container support 15 (conveying pallet), and is conveyed by an automatic conveying belt 16 until just before the primary filling machine 11, and the empty toner container 14 and the conveying pallet 1
5 was weighed by the automatic weighing machine 18 and the auger-type filling machine 11 was charged with 175 g of primary filling toner. Then, when moving on the transport path between the secondary filling machine 12, the two eccentric motors provided on the transport path are rotated in different directions to generate vibration on the transport path, and the toner The container 14 was vibrated to lower the toner powder level. The vibration conditions of the first vibration zone 20 on the side of the filling machine 11 where the primary filling is performed include a vibration frequency of 50 Hz and a longitudinal amplitude of 0.3 m.
m, a horizontal amplitude of 0.05 mm, and a vertical amplitude of 30% were applied for 30 seconds at a maximum value of + 10% of the arithmetic mean and a minimum value of -8%. Further, in the second vibration zone 21 on the side of the filling machine 12, vibration is performed for 90 seconds under the conditions of a frequency of 50 Hz and a vertical amplitude of 0.5 mm to sufficiently lower the toner powder level in the toner container, and then the remaining 70 g The toner (2) was secondarily charged without causing contamination of the toner container 14 and its surroundings due to scattering of the toner.
After the above-mentioned secondary filling operation is completed, the transport pallet 1
5 was weighed by the automatic weighing machine 19, and after the actual weight of the toner was confirmed, the toner was automatically conveyed to the next step by the automatic conveyance belt 17.

Example 5 175 g of toner was primarily charged in the same manner as in Example 4 by using the same continuous filling equipment shown in FIG. 2 as used in Example 4. In the first vibration zone 20, vibration is applied for 35 seconds under the conditions of a frequency of 50 Hz, a vertical amplitude of 0.4 mm, and a horizontal amplitude of 0.06 mm. In the second vibration zone 21, a frequency of 50 Hz, a vertical amplitude of 0.65 mm, and a horizontal amplitude are set. Vibration was applied for 60 seconds under the condition of 0.08 mm to vibrate the toner container 14 to sufficiently lower the toner powder surface, and then the remaining 70 g of the toner was secondarily filled. No scattering of toner was observed during the filling process, and the toner container 14 was not contaminated around the toner container 14 and the conveyance path, and a total of 245 g of toner could be filled with a vibration time of 95 seconds. Further, as compared with Comparative Example 6 described later, the total vibration time is shortened by 25 seconds, and about 10
A space saving of 00 mm was achieved.

(Comparative Example 5) Using the same continuous filling equipment shown in FIG. 2 as used in Example 4, 175 g of toner was filled by primary filling without any vibration zone, and after standing still for 4 minutes When the remaining 70 g of toner was tried to be secondarily filled, only 30 g of toner could be filled, and the filling amount was insufficient for 40 g, resulting in poor filling. In addition, the length of the automatic conveyance path was about 5800 mm longer than that of Example 5.

Comparative Example 6 A total of 245 g of toner was filled by the split filling method using the continuous filling equipment shown in FIG. 2 similar to that used in Example 4. After the toner container 14 was primarily charged with 175 g of toner, the frequency of the toner container was 50 Hz, the vertical amplitude was 0.4 mm,
Vibration was performed for 120 seconds under the conditions that the horizontal amplitude was 0.06 mm and the vertical amplitude variation was + 10% of the arithmetic mean at the maximum value and -8% at the minimum value, to lower the toner powder surface. Then the remaining 70g
Of the toner container 14, the toner overflowed from the filling port of the toner container 14, and contaminated the outer peripheral portion of the toner container, resulting in defective filling.

(Comparative Example 7) A toner container 1 primarily filled with 175 g of toner using the continuous filling equipment shown in FIG. 2 similar to that used in Example 4.
4 was set to a frequency of 50 Hz, a vertical amplitude of 0.1 mm, and a horizontal amplitude of 0.
After shaking for 120 seconds under the condition of 03 mm, the remaining 70 g
When the toner was filled secondly, only 60 g of toner could be filled, resulting in poor filling. The remaining 10 g of toner overflowed out of the toner container 14 and contaminated the conveyance path.

[0031]

As described above, the electrostatic charge image of the present invention is
According to the toner filling method, since a vibration can be effectively applied to the toner container in which a predetermined amount of toner is partially filled, the unfilled volume of toner in the toner container at this stage increases. After the secondary filling, a larger amount of toner can be filled than before, and the toner
Increase the filling amount of the toner to the over the container becomes possible.
As a result, it is possible to reduce the number of toner containers used for the same amount of toner, thereby reducing not only the per copy cost but also the amount of waste toner containers as waste. Was also possible. Further, according to the present invention, the time required for filling a certain amount of toner can be greatly reduced, and the filling tact can be increased, so that the space for the filling equipment can be saved and the filling cost can be reduced. Was.

[Brief description of the drawings]

FIG. 1 is a schematic external view of an electromagnetic vibration type vibration table used in Examples and Comparative Examples of the present invention.

FIG. 2 is a schematic diagram of a continuous filling facility used in Examples and Comparative Examples of the present invention.

FIG. 3 is a schematic external view of an auger-type filling machine used in Examples and Comparative Examples of the present invention.

FIG. 4 is a schematic external view of an eccentric motor type vibration table used in an embodiment of the present invention.

FIG. 5 is a graph showing the results of Example 1 of the present invention.

FIG. 6 is a schematic external view of an eccentric motor type vibration table used in an embodiment of the present invention.

FIG. 7 is a schematic external view of an eccentric motor type vibration table used in a comparative example of the present invention.

[Description of sign]

1: electromagnetic vibration generator 2: rubber spring 3, 43, 55, 60: table 4, 15, 41, 51, 62: toner container support (pallet) 5, 14, 40, 50, 61: toner container 11 : Primary filling machine (Auger type) 12: Secondary filling machine (Auger type) 13, 31: Filling nozzle (screw part) 16, 17: Automatic conveyor belt 18, 19: Automatic weighing machine 20: First vibration zone 21: Second vibration zone 30: Hopper 32, 45, 54, 65: Motor 33: Operation panel 42, 52, 63: Coil spring 44, 53, 64: Unbalance weight

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-19201 (JP, A) JP-A-50-37592 (JP, A) JP-A-5-32228 (JP, A) JP-A-3-32 256801 (JP, A) JP-A-61-262499 (JP, A) JP-A-63-96665 (JP, A)

Claims (8)

(57) [Claims] 1. A predetermined amount of bets to be filled into the toner supply container
In a method of charging an electrostatic image toner , the toner supply container is divided into a plurality of toner cartridges and the toner supply container is sequentially filled in a plurality of times, and a part of a predetermined amount of toner to be filled is filled in the toner supply container. During or after the filling step, the toner supply container is subjected to at least two or more kinds of vibrations having different total amplitudes in the vertical direction at the same frequency, and the total amplitude in the vertical direction is increased stepwise.
Given so that, in the toner supply container given vibration
Toner for electrostatic image, characterized by further filling with toner
-Filling method. 2. A vibration stepwise applied to the toner supply container.
The total amplitude of the vertical direction is in the range of 0.15mm or 0.8mm or less the method of filling toner for electrostatic image of claim 1. 3. Vibration applied to the toner supply container in a stepwise manner.
The method of filling toner for electrostatic image as claimed in claim 1 or 2 full amplitude in the horizontal direction is less than the total amplitude of the vertical direction. 4. A vibration applied stepwise to said toner supply container.
The toner according to claim 1 or 2 , wherein the total amplitude in the vertical direction is within a range of 0.15 mm or more and 0.8 mm or less, and the total amplitude in the horizontal direction is equal to or less than the total amplitude in the vertical direction. <br/> filling method. 5. A vibration stepwise applied to the toner supply container.
It is the same on the vibration table of toner for electrostatic image according to any one of claims 1 to 4 is accomplished by changing the vibration condition so that the total amplitude of the stepwise vertical direction becomes large to provide the vessel Filling method. 6. A vibration applied stepwise to said toner supply container.
Using the two or more vibration table having different vibration conditions, applying vibration to the toner supply container in the vertical direction of the full amplitude is stepwise larger order on the respective vibrating table particular
The method for filling a toner for an electrostatic image according to any one of claims 1 to 4, further comprising : 7. The toner for electrostatic image according to any one of claims 1 to 6 weight average particle diameter of 15μm or less
How to fill the toner . 8. The toner, silica is added externally mixed Tei
A method for filling the electrostatic image toner according to any one of claims 1 to 7 .