KR101685070B1 - recycling toner cartridge protected by paper sheet - Google Patents

Abstract

The present invention is a technology related to a recycling toner cartridge protected by a paper sheet in which the paper sheet protects a photoconductive drum by preventing the photoconductive drum from being in contact with an electrified roller in a high temperature and humidity environment, and can securely protect the recycling toner cartridge by fundamentally blocking a chemical material of the electrified roller from being radiated by absorbing moisture by the paper sheet.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a recycled toner cartridge,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recycled toner cartridge protected by a paper sheet, and more specifically, a technique for protecting a photosensitive drum and a charging roller of a recycled toner cartridge by a paper sheet.

Toner cartridges, which are essential parts used mainly in laser printers and copying machines, are very expensive and consumables, so if they are used once and discarded, they will not only waste resources but also adversely affect the natural environment. .

Generally, in a laser printer, a negative charge is uniformly charged on a photosensitive drum (OPC Drum, Organic Photo Conductor Drum) by a charge roller (PCR, Primary Charging Roller), and a laser beam is scanned on a portion to be printed of the photosensitive drum An electrostatic latent image is formed, toner is supplied to the photosensitive drum by the developing roller to develop the electrostatic latent image into a visible image, and the toner image is transferred to the paper again and fused to print a desired image.

Generally, the toner cartridge is constituted by integrating the photosensitive drum, the toner, and various rollers, and the toner cartridge once used is recharged after the disassembly and replaced according to the state of the photosensitive drum and recycled.

1 and 2 are a perspective view and a cross-sectional view of a conventional recycled toner cartridge.

Recycled toner cartridges, on the other hand, are stored in relatively poor conditions, unlike new product toner cartridges that are shipped from the factory.

In such a poor environment, when the recycled toner cartridge is stored for a long period of time, there is a great possibility that the photosensitive drum is damaged by prolonged contact with the charging roller.

In particular, when the photosensitive drum and the charging roller come into contact with each other for a long period of time in a high temperature and high humidity environment, there is a problem that the photosensitive layer of the photosensitive drum is damaged by chemicals emitted from the charging roller.

Further, since part of the photosensitive drum in the recycled toner cartridge is exposed to the outside for the purpose of transferring, there is a problem that foreign substances or moisture may be adhered to the photosensitive drum during handling of the toner cartridge.

Korean Patent No. 10-1061908 "Recycling Toner Cartridge Retention Mechanism" (2011. 8.29.)

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above problems of the prior art, and it is an object of the present invention to provide a paper sheet which prevents the contact between the photosensitive drum and the charging roller in a high temperature and high humidity environment to protect the photosensitive drum, The present invention proposes a new technique that can surely protect the recycled toner cartridge by allowing the radiation of chemical substances from the charging roller to be cut off.

According to an aspect of the present invention, there is provided a recycle toner cartridge including a photosensitive drum, a charging roller, a frame on which the photosensitive drum and the charging roller are rotatably mounted and on which a slot for a laser beam is formed; A narrow portion passing through the slot for the laser beam and inserted between the photosensitive drum and the charging roller to separate the photosensitive drum and the charging roller from each other with a width corresponding to the length of the slot for the laser beam, And a large-width portion having a larger width than the small width portion and covering a surface exposed to the outside of the photosensitive drum, wherein a portion of the outer side of the frame from the space between the photosensitive drum and the charging roller through the slot for the laser beam A paper sheet having a basis weight of 230 to 270 g and a thickness of 230 to 270 탆, the paper sheet being disposed to cover the exposed surface of the photosensitive drum; Fixing means for fixing a substantial portion of the paper sheet to the frame of the recycled toner cartridge; And a control unit.

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As described above, the present invention prevents the paper sheet from contacting the photosensitive drum and the charging roller in a high-temperature and high-humidity environment to protect the photosensitive drum.

In addition, the paper sheet absorbs moisture and can basically block the radiation of chemicals from the charging roller.

In addition, it is possible to protect a part of the photosensitive drum exposed to the outside of the paper sheet, thereby preventing the photosensitive drum from being contaminated by foreign matter or moisture.

In addition, despite the insertion of the paper sheet, the charging roller is not damaged due to the elasticity of the paper sheet.

In addition, this embodiment protects the recycled toner cartridge by the paper sheet, and the paper sheet is eco-friendly because it can be recycled again.

FIG. 1 and FIG. 2 are a perspective view and a sectional schematic view of a conventional recycled toner cartridge,
3 is a perspective view of a recycled toner cartridge protected by a paper sheet according to an embodiment of the present invention,
4 is a schematic cross-sectional view of a recycled toner cartridge protected by a paper sheet according to an embodiment of the present invention.
5 is a plan view of the paper sheet applied to Figs. 3 and 4. Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention in the drawings, portions not related to the description are omitted, and like reference numerals are given to similar portions throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

FIG. 3 is a perspective view of a recycled toner cartridge protected by a paper sheet according to an embodiment of the present invention, and FIG. 4 is a perspective view of the present invention FIG. 5 is a plan view of a paper sheet applied to FIGS. 3 and 4. FIG. 5 is a sectional view of a paper cartridge protected by a paper sheet according to an embodiment of the present invention.

The present embodiment largely comprises the recycled toner cartridge 100, the paper sheet 200, and the fixing means 300.

The recycled toner cartridge 100 includes a photosensitive drum 110, a charging roller 120, a frame 130, and the like.

The recycled toner cartridge 100 is made by recharging the toner after all of the toners in the new toner cartridge that has been shipped from the factory are all used.

A photosensitive drum 110, a charging roller 120, and the like are rotatably mounted on the frame 130.

In addition, the frame 130 is formed with a laser beam slot 131 through which the laser beam scanned by the exposure unit of the laser printer passes to form an electrostatic latent image on the photosensitive drum 110.

The length of the slot 131 for the laser beam is generally shorter than the length of the photosensitive drum 110. [

The photosensitive drum 110 is partly exposed to the outside for transferring.

The structure of such a recycled toner cartridge 100 is a well-known technique, and the structure of the recycled toner cartridge 100 shown in this embodiment should be understood as an example.

In order to protect such a recycled toner cartridge, a paper sheet 200 is provided.

The paper sheet 200 has a small width portion 210 at one end and a large width portion 220 at the other end.

The small width portion 210 is a portion having a relatively narrow width and the large width portion 220 is a portion having a width larger than the width of the small width portion 210.

The small width portion 210 of the paper sheet 200 has a width corresponding to the length of the laser beam slot 131 and the end portion of the small width portion 210 passes through the laser beam slot 131 and then passes through the photosensitive drum 110 And the charging roller 120, whereby the photosensitive drum 110 and the charging roller 120 are separated from each other.

On the other hand, the large-width portion 220 is formed while being extended from the small width portion 210, and covers the surface exposed to the outside of the photosensitive drum 110. Since the photosensitive drum 110 is formed longer than the slot 131 for the laser beam, the wider portion 220 has a wide width so as to have a width corresponding to the length of the photosensitive drum 110.

In order to protect the recycled toner cartridge 100, the paper sheet 200 is rounded so as to surround a part of the recycled toner cartridge, and a portion exposed to the outside of the photosensitive drum 110 is located inside the rounded, One end of the rounded area corresponds to a portion located in the slot 131 for the laser beam.

The small width portion 210 is inserted and fixed between the photosensitive drum 110 and the charging roller 120 while the large width portion 220 is fixed to the frame of the recycled toner cartridge 100 by a separate fixing means 300 130). As the fixing means 300, an adhesive tape, an adhesive tape, or the like can be adopted.

The paper sheet 200 of the present embodiment is preferably a snow paper having a basis weight of 230 to 270 g and a thickness of 230 to 270 탆.

Since the paper sheet 200 itself has the ability to absorb moisture, even when the recycled toner cartridge is exposed to a high temperature and high humidity environment, the paper sheet 200 can absorb moisture and suppress the radiation of chemical substances from the charging roller 120 .

In order for the paper sheet 200 to be inserted between the photosensitive drum 110 and the charging roller 120 as in the present embodiment, the end of the paper sheet 200 should have sufficient rigidity. That is, if the paper sheet 200 is not sufficiently rigid, there is a high possibility that the paper sheet 200 will be deflected when the paper sheet 200 is inserted between the photosensitive drum 110 and the charging roller 120, and the insertion operation will fail.

Also, the paper sheet 200 inserted between the photosensitive drum 110 and the charging roller 120 should have sufficient elasticity and not be too thick. If the paper sheet 200 is very stiff or too thick, there is a risk that the paper sheet 200 will deform the charging roller 120.

In consideration of these technical aspects, the paper sheet 200 of this embodiment adopts a snow paper having a basis weight of 230 to 270 g and a thickness of 230 to 270 탆.

As a kind of paper, snowshoe paper, art paper, and imitation paper are known.

In the case of imitation paper, it is generally not suitable for the present embodiment since it is general that the basis weight (the weight of 1 m ² of paper is expressed in g) is small.

In the case of art paper, the water absorbing ability is significantly deteriorated due to glossiness.

In the case of snow ground, when the weight is 230 ~ 270g and the thickness is 230 ~ 270μm, sufficient strength and sufficient elasticity can be obtained in a suitable thickness range.

Snow itself has excellent water absorption ability.

If the basis weight is less than 230 g or the thickness is less than 230 μm, the paper sheet 200 may be easily bent when inserted between the photosensitive drum 110 and the charging roller 120.

Snow paper has a basis weight of 270 g or a thickness of more than 270 탆, which causes deformation of the charging roller 120.

That is, a snowboard having a basis weight of 230 to 270 g and a thickness of 230 to 270 μm, more preferably a snowboard having a basis weight of 250 g and a thickness of 240 to 260 μm is excellent in water absorption capacity, There is no problem, and even when inserted, the charging roller 120 is not deformed.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the embodiments described above are intended to be illustrative, but not limiting, in all respects. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Recycled toner cartridge
110: photosensitive drum 120: charging roller
130: Frame 131: Slot for a laser beam
200: Paper sheet
210:
220:
300: fixing means

Claims (3)

A recycling toner cartridge comprising a photosensitive drum, a charging roller, a frame on which the photosensitive drum and the charging roller are rotatably mounted and on which a slot for a laser beam is formed;
A narrow portion passing through the slot for the laser beam and inserted between the photosensitive drum and the charging roller to separate the photosensitive drum and the charging roller from each other with a width corresponding to the length of the slot for the laser beam, And a large-width portion having a larger width than the small width portion and covering a surface exposed to the outside of the photosensitive drum, wherein a portion of the outer side of the frame from the space between the photosensitive drum and the charging roller through the slot for the laser beam A paper sheet having a basis weight of 230 to 270 g and a thickness of 230 to 270 탆, the paper sheet being disposed to cover the exposed surface of the photosensitive drum;
Fixing means for fixing a substantial portion of the paper sheet to the frame of the recycled toner cartridge;
Wherein the toner cartridge comprises a plurality of toner cartridges. delete delete

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