KR19980062718U - Toner Supply Restriction Device for Electrophotographic Developer - Google Patents

Abstract

This paper reclaims the excess supply of toner, and installs a propeller-shaped supply rotating body in the toner supply section to prevent undeveloped toner from being cleaned by the supply roller, and prevents toner filling. It is used as a main supply roller and an auxiliary supply rotating body to regulate the supply of the main supply roller. The auxiliary supply rotating body rotates in contact with the main supplying roller, and rotates the rotation ratio clockwise and counterclockwise more than a predetermined number of times. Consists of.

Description

Toner Supply Restriction Device for Electrophotographic Developer

The present invention relates to a toner replenishment regulating device in an electrophotographic developing apparatus, and more particularly, to an electrophotographic developing toner replenishing regulating device for installing a propeller-shaped supply rotating body to prevent filling of excess toner.

In general, an image forming apparatus using an electrophotographic technique uniformly charges the surface of a photoconductor by a charging device, and charges formed on the surface of the photoconductor are formed by a latent image in full length movement by exposure. The latent image is formed by an appropriate charge, The diffused toner is moved from the developing area to the latent image portion of the photoconductor to form visible light. The visible light is formed when the toner is moved onto the paper in the transfer section, and is configured to be fixed by a fixing process. On the other hand, the toner stored in the hopper 110, as in the example of FIG. 1, needs to be continuously supplied with toner to form a uniform charging to make a continuous image. 101 continuously supplies toner to the supply roller 103 to fill more toner than necessary, but in this case The toner is able to form a friction charging of the forehearth no chargeability and image quality is degraded, there is a problem that can not output a stable image in a row.

Therefore, the purpose of this paper is to recover the excess toner, and to clean the undeveloped toner by the supply roller, but to prevent the filling of the excess toner by installing a propeller-shaped supply rotating body in the toner supply part. In providing.

In order to achieve the above object, this paper uses a main supply roller and an auxiliary supply rotating body to regulate the supply of toner in a developing process, wherein the auxiliary supply rotating body is rotated in contact with the main supplying roller, and the rotation ratio is It is characterized in that it is configured to rotate clockwise and counterclockwise more than a predetermined multiple of.

1 is a view for explaining a conventional toner replenishment regulating device;

2 is a view for explaining a toner replenishment regulating device according to an embodiment of the present invention;

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 is a view for explaining the toner replenishment regulating device according to the embodiment of the present invention;

The photosensitive member 107 and the developing roller 105 are configured to rotate in opposite directions, and the line speed ratio of the developing roller 105 to the rotation ratio of the rotational axis of the photosensitive member 107 is 1, 5 times or more, Attached to the surface of the roller for thinning of the toner on the surface of the developing roller 105, a regulating bleed 109 is installed, and a supply roller is brought into contact with the developing roller 105 for continuous supply and charge formation of the toner. 103 is provided, and a propeller-shaped rotating body 201 is provided to control the supply and overcharge of the toner. The rotating body 201 is configured to contact the supply roller 103 while rotating on the same horizontal axis as the supply roller 103.

Therefore, a specific embodiment of the present invention will be described in detail with reference to FIG.

The toner in the hopper of the toner is dispersed so as not to be agglomerated by the edge actuator 101, and the toner is fed to the feed roller 103 by the rotating body 201. Meanwhile, the feed toner is supplied to the feed roller 103. It is triboelectrically charged by the developing roller 105, and the charge is induced by the high pressure applied by the supply roller 103, and the charged state. The charged toner is moved to and adhered to the surface of the developing roller 105 by the potential difference between the supply roller 103 and the developing roller 105, and is regulated to be thinned through the regulating blade 109, so that the photosensitive member 107 in the developing region. This procedure allows the above process to be carried out continuously. The toner supplied excessively from the toner hopper is recycled by the rotating body 201.

It is configured to supply a stable toner to obtain a stable image

As described above, the excessively supplied toner is recovered and the undeveloped toner is cleaned by the supply roller. However, a propeller-shaped supply rotating body is installed in the toner supply portion to prevent the filling of the excess toner. It is possible to stabilize the charging characteristics of the toner, which has the advantage of extending the output and life of a stable image.

Claims (2)

In the toner supply control apparatus of the electrophotographic developing machine, In the developing process of the electrophotographic developing apparatus, a main supply roller and an auxiliary supply rotating body are used to regulate the supply of toner, and the auxiliary supply rotating body is configured to rotate in contact with the main supply roller. Toner Supply Regulator. The method of claim 1, And the rotation ratio of the auxiliary supply rotating body is configured to rotate in a clockwise direction and a counterclockwise direction of a predetermined number or more of a conventional predetermined number.