KR19980051632A - Developing and detaching guide device for electrophotographic processor - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs.

The present invention relates to a developing machine detachment guide apparatus of an electrophotographic processor.

I. The technical problem to be solved by the invention.

The present invention is to provide a developer detachable guide device that prevents the damage of the door when the door is opened and closed while guiding the correct location point of the developer detachment.

All. Summary of the Solution of the Invention.

The most preferred embodiment according to the technical idea of the present invention is to facilitate the installation at the correct position of the developing device in the device body and at the same time easy, and also to protrude when the opening and closing door is opened and closed at the same time so as to be depressed at the same time of the door It is characterized by guiding the desorption of the developer by installing a bent guide guided by a torsion spring at the end body position.

la. Important use of the invention.

The present invention is effective in assisting in the detachment of the developer as a disposable consumable in the electrophotographic processor.

Description

Developing and detaching guide device for electrophotographic processor

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a developing unit of an electrophotographic processor, and more particularly to a guide unit of the developing unit which is retracted and variable as the cover is opened and closed when the developer is attached to or detached from the device body.

Typically, the developing device of the electrophotographic processor is a disposable consumable and must be replaced when periodically performing after-sales service or when the toner in the developer is exhausted.

As shown in FIG. 1, when the developer and the apparatus are mounted and operated in the apparatus main body, as shown in FIG. 1, when the paper feeder 110 is fed by friction with the pickup roller 120 in sequence, the sheet feeder 110 is arranged one by one. The feeding roller 130 is conveyed toward the feed roller 140 by friction.

Subsequently, when a sheet of paper is passed through the developing unit 100, a process of developing on the sheet is described. First, by classifying the components forming the image, the developing unit 100, which is a general disposable consumable, is used as a photosensitive drum 10. ), The charging roller 20, the developing roller 40, the transfer roller 30 and the like.

The charging roller 20 rotates with the photosensitive drum 10 and evenly charges the surface of the photosensitive drum 10 at high pressure, and at this time, a digital signal from a computer or the like is applied to the charged portion of the photosensitive drum 10. The electrostatic latent image is formed by the exposure apparatus 60 which converts it into light, and the latent image generated on the photosensitive drum 10 is developed into a toner while passing through a thin and uniform toner layer on the developing roller 40 to become a visible image. Goes. In addition, the transfer roller 30 is transferred onto the paper and fused onto the paper by a heating roller 151 and a pressure roller 150, and then discharged by the delivery roller 160.

At this time, in order to form a thin and uniform toner layer on the developing roller 40, a thin and uniform layer of the toner deposited on the supply roller 50 and the developing roller 40 which frictionally charge the toner while buried the toner in the developing roller The blade 70 which is regulated by this is in contact with the developing roller. In the toner chamber 80 for storing the toner, a stirrer for transferring the toner to the developing roller 40 and the supply roller 50 is incorporated, which is generally rotated by a drive gear. Therefore, in order for the set to be printed, the stirrer for supplying the toner also rotates to convey the toner.

The developing unit that performs this operation is the most important unit of image quality in the electrophotographic processor. When all the toner in the developing unit is used up, the developing unit is installed inside the main body of the machine when it is replaced. The following problems occur.

If a user, such as a consumer, needs to take out the developing unit from the device main body and replace it with a new developing unit, it is difficult to recognize whether the developing unit is mounted at the correct position. In other words, if most of the developing units are taken out of the main body of the machine or a new developing unit is installed, it is difficult to know the exact position unless the inside of the main body of the machine is very carefully examined, and the developing unit is not mounted in the correct position, and it is applied by force. At the same time, excessive pressure is applied to the developing device, and the door or the main body of the device is often damaged when the door is closed. As a result, the developer mounting point is located in a difficult place to recognize.

The present invention has been made to solve the above-mentioned conventional problems, an object of the present invention is to provide a developer detachment guide device for guiding the correct position point of the developer detachment when the developer is detached from the electrophotographic processor.

Another object of the present invention is to provide a developer detachable guide device which prevents damage of the door when the door is opened and closed by easily detaching the developer in the correct position.

In order to achieve the above objects, the most preferred embodiment according to the technical idea of the present invention is to be able to be mounted at the correct position of the developing device in the device body and at the same time, and also to be recessed when the opening and closing door is protruded and closed at the same time. It is characterized by guiding the detachment of the developer by installing a bent guide guided by the torsion spring in the main body position of the end side of the door in conjunction with one side of the door.

1 is a view showing a schematic configuration of an electrophotographic processor according to a conventional embodiment

Figure 2 is a schematic view showing a state in which the guide of the developer detachable guide device during opening and closing the opening and closing door of the electrophotographic processor according to an embodiment of the present invention

Figure 3 is a schematic view showing a state in which the guide of the developer detachable guide device when the door closing for opening and closing the electrophotographic processor according to an embodiment of the present invention

Explanation of symbols on the main parts of the drawing

1: Guide 2: Torsion Spring

3: Guide groove 10: Photosensitive drum

50: developing roller 100: developing

170: opening and closing door 200: electrophotographic processor

Hereinafter, with reference to the accompanying drawings will be described in detail the most preferred embodiment of the present invention. First, in describing each of the drawings, the same components have the same reference numerals as much as possible even though they are shown in different drawings. In describing the present invention, when it is determined that description of related known functions or configurations may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

As shown in Figure 2, Figure 3, the components of the developing machine detachment guide device according to a preferred embodiment of the present invention is a guide 1 bent in an angular direction, and a torsion spring holding the guide 1 ( 2) consists of. In addition, the guide groove 3 is formed next to the installation position of the guide 1 so as to allow sliding of the developer.

The guide device is first one side is fixed around the hinge axis, and the torsion spring (2: fixed side and the moving side is provided) so that the other side is moved, and the guide (1) and also the spring (2) Install around the axis of rotation in the same direction.

When the door 170 for opening and closing is opened by the guide device as described above (A direction), one side of the guide 1 is moved upwardly about the rotational axis by the moving side arm of the torsion spring 2, that is, Protrudes and pushes the developer 100 in the direction of the arrow (C direction) so that the bottom surface of the developer passes through the guide 1 and the projections projected on both sides of the developer move along the guide groove 3. The installation is then completed in the correct position by being guided. At this time, the guide groove 3 is curved.

Then, the developing unit is mounted on the apparatus main body, and then the door is closed in the B direction. The development of the developer is completed, and accordingly, the operation of the developer will be described. The charging roller 20 rotates with the photosensitive drum 10 and evenly charges the surface of the photosensitive drum 10 at high pressure, and at this time, a digital signal from a computer or the like is applied to the charged portion of the photosensitive drum 10. The electrostatic latent image is formed by the exposure apparatus 60 which converts it into light, and the latent image generated on the photosensitive drum 10 is developed into a toner while passing through a thin and uniform toner layer on the developing roller 40 to become a visible image. Goes. In addition, the transfer roller 30 is transferred onto the paper and fused onto the paper by the heating roller and the compression roller, and then discharged.

At this time, in order to form a thin and uniform toner layer on the developing roller 40, a thin and uniform layer of the toner deposited on the supply roller 50 and the developing roller 40 which frictionally charge the toner while buried the toner in the developing roller The blade 70 which is regulated by this is in contact with the developing roller. In the toner chamber that stores the toner, a stirrer for transferring the toner to the developing roller 40 and the supply roller 50 is built in, which is generally rotated by a drive gear. Therefore, in order for the set to be printed, the stirrer for supplying the toner also rotates to convey the toner.

As a result, in order to provide accuracy to the mounting point of the developing device as described above, when the door is opened by separately installing a guide device on one main frame of the opening and closing door, one side of the guide is protruded by a spring to To aid in mounting and when the door is closed, one side of the guide is recessed and the door is completely covered. That is, the guide device assists in the detachment of the developer.

As described above, the present invention is effective in assisting in the detachment of the developer as a disposable consumable in the electrophotographic processor. On the other hand, in the detailed description of the present invention has been described with respect to specific embodiments, it is obvious to those skilled in the art that various modifications are possible without departing from the scope of the present invention.

* Supplementary Statement *

In the present invention, when the developer is mounted, the reason why the guide is recessed and when the developer is pulled out, please explain in detail the reason why the guide is protruding, and also ask for a detailed and detailed drawing of the operation thereof.

Claims (2)

In the developer detachment of the electrophotographic processor provided with a door for opening and closing, The main body position of the end of the door in conjunction with the one side of the door 170 so that it is possible to be mounted at the correct position of the developing device 100 in the device body and at the same time, and also protruded when the opening and closing door 170 is opened and at the same time it is recessed when closed. And a guide (3) having a bent shape held by the torsion spring (2) to guide the detachment of the developing device. The developing and detaching of the electrophotographic processor according to claim 1, wherein curved guide grooves (3) are formed on both sides of the frame so that the developing device slides through the guide (1) to be mounted at the correct position. Guide device.