JPS62168188A - Cleaning device - Google Patents

Abstract

PURPOSE:To prevent the fur body of a fur brush running body from being fallen down and to maintain cleaning capability for a long period by setting the relative sliding directions of the fur body for an image carrier and a recovery body opposite. CONSTITUTION:An excessive developer on a photosensitive body 1 as the image carrier is removed and attracted by the fur body 3 of the fur brush running body 2. This attracted developer is removed and attracted by a recovery roller 5 similarly. The photosensitive body 1 and running body 2, and the running body 2 and roller 5 are rotated in the opposite directions and the relative sliding directions of the fur body 3 for the photosensitive body 1 and roller 5 are set opposite, thereby preventing the fur body 3 from being fallen down. Consequently, the cleaning capability is maintained for a long period.

Description

[Detailed Description of the Invention] [Purpose of the Invention (Industrial Field of Application) The invention is to apply the bristles of a fur brush running body to an object to remove deposits attached to the object. The present invention relates to a cleaning device that collects deposits attached to the bristles of the fur brush traveling body by rubbing a collecting body against the bristles of the fur brush traveling body.

(Prior Art) For example, as a cleaning device used in a copying machine and the like to remove developer as a deposit adhering to a photoreceptor as an adherend, there is a proa type cleaning device that uses mechanical force, f Sea type 2 cleaning scissor device, device type cleaning device.

There are magnetic brush type cleaning devices that utilize electrical and magnetic forces, fur brush type cleaning devices that utilize mechanical and electrical forces, and the like.

However, since the Proa-type cleaning device uses a Proa, the device becomes large and heavy, the blade-type cleaning device damages the photoreceptor, and the web-type cleaning device has a complicated structure, making it difficult to achieve a compact design. Magnetic brush cleaning! In the device, the device:
TT, and the price is high.

Therefore, in the past, the above-mentioned fur brush type cleaning device, which is smaller in size and lower in price, has been widely used. As shown in FIG. 3, this involves removing the developer e adhering to the photoreceptor C by rubbing the bristles of the fur brush roller a as a fur brush traveling body against the photoreceptor C. A collecting roller dt as a collecting body is rubbed against the fur brush roller a to collect deposits attached to the fur brush roller a.

(Problems to be Solved by the Invention) Conventionally, the photoconductor C, the fur brush roller a, and the collecting roller d rotate in the same direction, that is, the bristles of the fur brush roller a slide relative to the photoconductor C. Since the rubbing direction and the relative sliding direction with respect to the collecting roller d were set in the same direction, a hair falling phenomenon occurred, and for example, as shown in FIG.
Deteriorates after continuous copying of 00 sheets. 2. The angle of the hair is tilted based on the upright hair body.

The present invention has been made based on the above-mentioned circumstances, and an object thereof is to provide a cleaning device that prevents as much as possible the phenomenon of falling of the bristles of a fur brush running body.

[Structure of the Invention (Means for Solving the Problems)] In order to solve the above-mentioned problems, the present invention provides a method in which the bristles of a fur brush traveling body are rubbed on the adherends, and In the cleaning device, the cleaning device is configured to remove the deposits attached to the fur brush traveling body and collect the deposits attached to the bristles by rubbing a collecting body against the bristles of the fur brush traveling body. It is characterized in that the relative sliding direction of the bristles on the object to be adhered to and the relative sliding direction of the bristles on the collecting body are set to be opposite directions.

(Function) Forces in opposite directions are applied to the bristles when the bristles are rubbed against the object to which they are attached and when they are rubbed against the collecting object, and the bristles that have been knocked down by the rubbing against the object are It is caused by rubbing against the collecting body.

(Example) Hereinafter, an example of the present invention will be explained with reference to FIGS. 1 and 3. In FIG. 1, 1 is used, for example, in an electronic copying machine, and is a drum-shaped photoreceptor that rotates at a predetermined speed in a predetermined direction. A roller 2 is provided. This fur brush roller 2 has a large number of bristles 3 implanted on its circumferential surface, and is adapted to rotate, for example, in the same direction as the photoreceptor 1, and as it rotates, the bristles 3 are attached to the photoreceptor. It is designed to rub against the surface of 1. Further, a bias voltage is applied to this fur brush roller 2 by a first power source 4. Then, the present agent e as a deposit adhering to the surface of the photoreceptor 1 is removed by the bullet suction force of the bristles 3 and the electrostatic attraction by the bias voltage.

Further, a collection roller 5 as a collection body is disposed opposite to the peripheral portion of the upper self-fur glazing roller 2. This collection roller 5 has Mylar (product name) on the surface of the metal roller 6.
7t' shrink link.

For example, it is configured to rotate in the opposite direction to the fur brush roller 2 (7) at a relative circumferential speed to the fur brush roller 2 that is equal to the relative speed of the fur brush roller 2 to the photoreceptor 1; Accordingly, the bristles 3 rub against the surface. That is,
The photoreceptor 1° fur brush roller 2 and collection roller 5 are the photoreceptor I of the bristles 3 of the
It is configured to rotate so that the relative sliding direction with respect to K and the relative sliding direction with respect to the upper C collection roller 5 are opposite directions.

Further, a contact charger 9 to which a pressure is applied by a second power source 8 is in contact with the surface of the collection roller 5, and the Mylar 7 of the collection roller 5 is charged. The collection roller 5 is adapted to electrostatically collect the developer e adhering to the bristles 3 of the fur brush roller 2. Further, a blade 1o is provided on the surface of the collection roller 5, and the developer e collected by the collection roller 5 is scraped off by the blade 10, and the receiver is stored in the tray 1. When the photoreceptor 1 rotates at a peripheral speed vim and the fur brush roller 2 rotates at a peripheral speed v2, the collection roller 5 rotates at a peripheral speed −v3=−(υt+2″z). The circumferential speed τ1 of the photoreceptor 1 during sliding
A resultant force Fl+Fs of the force F1 caused by the force F1 and the force F2 caused by the circumferential speed υ2 of the brush roller 2 acts on the bristles 3. On the other hand, when the bristles 3 are rubbed against the collection roller 5, the force F2 due to the peripheral speed v2 of the fur brush roller 2 and the peripheral speed of the collection roller 5 -
Car F3 = (F
1+2F2) resultant force F2 F'3 =F2-(Fl
+2Fm)=-(F't+F2) acts on the hair body 3. That is, when the bristles 3 rub against the photoreceptor 1 and when they rub against the recovery roller 5, forces of equal magnitude and opposite directions act on the bristles 3, so that, for example, the force applied to the photoreceptor 1 is The bristles 3 that have been knocked down by the rubbing are raised up by the rubbing against the collecting roller 5. Therefore, it is possible to prevent the hair body 3 from falling as much as possible, thereby maintaining the initial cleaning ability over a long period of time, and improving the cleaning ability. That is, as shown in the experimental results in FIG. 2, even after 10,000 copies, the phenomenon of falling hair was small and a sufficient leaning effect was obtained.

In this embodiment, the adherend 1 is drum-shaped, and the fur brush traveling body 2 and collecting body 5 are roller-shaped, but the present invention is not limited to this, and it is possible that these may be belt-shaped, for example. Of course.

Further, in this embodiment, the photoreceptor 1 and the fur brush roller 2 are rotated in the same direction, and the collection roller 5 is rotated in the opposite direction, and the relative circumferential speed of the fur brush roller 2 with respect to the photoreceptor 1 and the collection roller with respect to the fur brush roller 2 are Although the relative circumferential speeds of the fur brush running body 2 and the collecting body 5 are made equal, the relative circumferential speeds of the fur brush traveling body 2 and the collecting body 5 are equal to each other. Of course, it is sufficient to set them in the opposite direction.

[Effects of the Invention] As explained above, according to the present invention, the relative sliding direction of the bristles of the fur brush traveling body with respect to the object to which it is attached and the relative sliding direction of the fur brush traveling body with respect to the collecting body are set in opposite directions. 5. It is possible to prevent the phenomenon of hair falling down as much as possible, thereby maintaining the initial cleaning ability over a long period of time, and achieving excellent effects such as being able to improve the cleaning ability.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing the relationship between the hair fall angle and the number of copies in the same embodiment, and FIG.
The figure is a block diagram showing a conventional example, and FIG. 4 is a diagram showing the relationship between the hair fall angle and the number of copies in the same example. 1... Adhesive body (photoreceptor), 2... Fur brush traveling body (fur brush roller), 3... Hair body, 5...
Collection body (collection roller), e...adherent (developer). Applicant's agent Patent attorney Suzue Shiki Guatei Figure 1 Figure 2 Kore'-*(SUJ)

Claims (1)

[Claims] The bristles of the fur brush traveling body are rubbed against the object to remove the deposits adhering to the object, and the collecting body is rubbed against the bristles of the fur brush traveling body to remove the hairs. In the apparatus for collecting matter adhering to the body, the relative sliding direction of the bristles of the fur brush traveling body with respect to the adhered object and the relative sliding direction with respect to the collecting body are set to be opposite directions. A cleaning device characterized by: