KR19980054775U - Development Unit of Electrophotographic Device - Google Patents
Development Unit of Electrophotographic Device Download PDFInfo
- Publication number
- KR19980054775U KR19980054775U KR2019960067972U KR19960067972U KR19980054775U KR 19980054775 U KR19980054775 U KR 19980054775U KR 2019960067972 U KR2019960067972 U KR 2019960067972U KR 19960067972 U KR19960067972 U KR 19960067972U KR 19980054775 U KR19980054775 U KR 19980054775U
- Authority
- KR
- South Korea
- Prior art keywords
- roller
- transfer
- toner
- developing
- photosensitive drum
- Prior art date
Links
- 230000001105 regulatory effect Effects 0.000 description 7
- 238000011109 contamination Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
- G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
- G03G15/1605—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using at least one intermediate support
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
- G03G15/0808—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the developer supplying means, e.g. structure of developer supply roller
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
- G03G15/0812—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the developer regulating means, e.g. structure of doctor blade
Abstract
이 고안은 예컨데 복사기나 팩시밀리 및 프린터와 같이 전자 사진 방식을 이용한 현상장치에서 현상된 화상을 용지에 전사시키는 전사장치에 있어 전사 로울러를 소모품화 시킬 수 있도록 한 전자사진장치의 현상유니트에 관한 것으로서, 감광드럼과 대전장치와 현상로울러 및 블레이드를 가지는 현상장치, 토너가 담기게 되는 토너호퍼 및 전사로울러를 포함한 전사장치가 일련의 조합으로 구성되어 소모품으로 대치할 수 있도록 구성한 것이다.The present invention relates to a developing unit of an electrophotographic apparatus for making a transfer roller a consumable in a transfer apparatus for transferring an image developed on an electrophotographic developing apparatus such as a copy machine, a facsimile machine, or a printer. A photosensitive drum, a charging device, a developing device having a developing roller and a blade, a transfer device including a toner hopper and a transfer roller containing toner are composed of a series of combinations to replace consumables.
Description
본 고안은 예컨데 복사기나 팩시밀리 및 프린터와 같이 전자사진방식을 이용한 현상장치에 관한 것으로서, 특히 현상된 화상을 용지에 전사시키는 전사장치에 있어 전사로울러를 소모품화시킬 수 있도록 한 전자사진장치의 현상유니트에 관한 것이다.The present invention relates to a developing apparatus using an electrophotographic method, such as a copy machine, a facsimile machine, and a printer. In particular, a developing unit of an electrophotographic apparatus in which a transfer roller can be consumable in a transfer apparatus for transferring a developed image onto paper. It is about.
종래의 전자사진을 이용한 현상장치의 구성과 동작원리를 설명하는 도면이 도 1에 도시되어 있다.1 is a view for explaining the configuration and operation principle of a conventional developing apparatus using electrophotographic.
이것은, 일정한 속도로 회전하는 감광드럼(1) 주위에 일정한 마이너스(-) 전압을 걸어 감광드럼 표면을 대전시키는 대전장치(2)와, 대전된 감광드럼 표면 위에 컴퓨터의 화상신호에 의해 디지털로 빛을 온(ON)/오프(OFF) 시키는 노광장치(3)와, 토너호퍼(4)에 담겨 있는 토너(5)를 현상로울러(6)에 공급하는 공급로울러(7)와, 상기 현상로울러(6) 위에 토너를 일정한 층으로 규제하는 규제블레이드(8)로 구성된 현상장치, 그리고 현상된 토너상을 용지 위에 전사하는 로울러타입의 전사 장치등으로 구성되어 일련의 인쇄작업을 수행한다.This is because the charging device 2 charges the surface of the photosensitive drum by applying a constant negative voltage (-) around the photosensitive drum 1 rotating at a constant speed, and the light is digitally generated by a computer image signal on the surface of the photosensitive drum. An exposure apparatus 3 for turning the light on / off, a supply roller 7 for supplying the toner 5 contained in the toner hopper 4 to the developing roller 6, and the developing roller ( 6) A series of printing operations are carried out, consisting of a developing device composed of a regulating blade 8 for regulating toner on a certain layer, and a roller-type transfer device for transferring the developed toner image onto a sheet.
이때, 전사장치는 마이너스(-)로 대전된 토너 화상을 용지 위에 전사시키기 위하여 플러스(+) 코로나 방전을 이용하거나 또는 전사효율을 높일뿐만 아니라 도전성 스폰지로울러를 이용하여 감광드럼에 접촉시킴과 동시에 용지의 피딩 역할을 동시에 수행하는 로울러타입의 전사장치를 이용하고 있다.At this time, the transfer device uses a positive corona discharge or transfer efficiency to transfer the negatively charged toner image onto the paper or improves the transfer efficiency, and uses a conductive sponge roller to make contact with the photosensitive drum. Roller type transfer device that simultaneously performs the feeding function of.
상기 로울러타입의 전사장치는 코로나방전을 이용하는 기존의 전자방식보다 접촉형이므로 낮은 전사전압으로 고 효율의 전사성을 기할수 있으며 용지 이송역할까지 같이 수행하므로서 간단화 및 성력화에 상당한 기여를 하였다.Since the roller-type transfer device is a contact type than the conventional electronic method using corona discharge, it has a high transferability with low transfer voltage and also performs a paper transfer role, thereby greatly contributing to simplification and performance.
그러나 계속하여 감광드럼에 접촉하여 있기 때문에 용지가 없을시 감광 드럼부의 토너가 계속하여 뭍어 토너오염의 염려가 있고 잼 등의 이상상황이 발생시도 현상된 토너가 다량으로 전사로울러에 넘어 갈수가 있었다.However, since the toner was continuously contacted with the photosensitive drum, the toner of the photosensitive drum portion continued to bleed out in the absence of paper, causing toner contamination, and even when abnormalities such as jams occurred, a large amount of developed toner could be transferred to the transfer roller.
또한, 용지를 이송하여야 하기 때문에 용지 지분등이 물의 영향으로 전사 불량을 야기하는 등 여러 가지 문제점이 있다.In addition, since the paper must be transported, there are various problems such as the paper share, which causes the transfer failure due to the influence of water.
종래에는 회로의 콘트롤로 용지가 전사로울러 위에 없을시 토너와 같은 극성인 마이너스(-) 전위를 걸어 토너가 넘어 오지 않도록 하는 일련의 방식이 있었으나 지분 이상화상의 토너등 전부 막을수는 없었다.Conventionally, there has been a series of methods in which a toner does not fall over by applying a negative (-) potential having the same polarity as the toner when the paper is not on the transfer roller by the control of the circuit, but it cannot stop all the toners of the stake ideal image.
이러한 불합리한 점에도 불구하고 종래의 기기에서는 토너 호퍼(4)에 있는 토너가 다 소모되면 현상기유니트라하여 대전장치, 감광드럼현상장치, 토너호퍼등 만을 소모품으로하여 일정한 프레임에 일체화하여 수명, 가령 5000매만 쓰면 새것 으로 교환하게 되어 있어서 전사장치는 세트측에 설치하여 일정한 주기로 청소 혹은 아프터써비스등으로 대응하였다.In spite of such unreasonableness, in the conventional apparatus, when the toner in the toner hopper 4 is used up, the developer unit is used as a consumable, and only a charging device, a photosensitive drum developing device, and a toner hopper are consumables. The transfer device was installed on the set side, so that cleaning or after-sales service was performed at regular intervals.
본 고안은 상기와같은 종래의 문제점을 해결하기 위하여 기존에 일체화되지 않았던 전사로울러를 다른 소모품과 일체화시켜 일정한 수명이 되면 자동적으로 새것으로 교환되도록 하려는데 그 목적이 있다.In order to solve the above problems, the present invention integrates a transfer roller, which has not been previously integrated, with other consumables, and automatically replaces it with a new one when a certain life is reached.
본 고안은 상기 목적을 달성하기 위하여, 감광드럼과, 상기 감광드럼 표면을 대전시키는 대전장치와, 빛을 온/오프시키는 노광장치와, 토너를 공급하는 공급 로울러와, 현상로울러 및 상기 현상로울러에 토너를 일정한 층으로 규제하는 규제블레이드를 가진 현상장치, 그리고 현상된 토너상을 용지 위에 전사하는 전사로울러를 소모성 현상유니트에 일체화되도록 한 것을 그 특징으로 한다.The present invention provides a photosensitive drum, a charging device for charging the surface of the photosensitive drum, an exposure device for turning on / off light, a supply roller for supplying toner, a development roller, and a development roller. A developing apparatus having a regulating blade for regulating the toner in a certain layer, and a transfer roller for transferring the developed toner image onto a sheet are integrated into the consumable developing unit.
도 1은 종래기술을 설명하는 전자사진장치의 요부 구성 단면도,1 is a sectional view showing the principal parts of an electrophotographic apparatus for explaining the prior art;
도 2는 본 고안에 따른 전사사진장치를 보인 개략 구성 단면도이다.2 is a schematic cross-sectional view showing a transfer photographing apparatus according to the present invention.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
10 : 현상유니트11 : 감광드럼10: developing unit 11: photosensitive drum
12 : 대전장치13 : 노광장치12: charging device 13: exposure device
14 : 토너호퍼15 : 토너14: toner hopper 15: toner
16 : 현상로울러17 : 공급로울러16: developing roller 17: feeding roller
18 : 규제블레이드19 : 전사로울러18: Regulated Blade 19: Warrior Roller
이하, 첨부된 실시도면에 의거하여 보다 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings in more detail as follows.
도 2는 본 고안에 따른 소모성현상유니트를 보인 것이다.Figure 2 shows the consumable development unit according to the present invention.
여기서 상기 소모성현상유니트(10)는 일정한 속도로 회전하는 감광드럼(11)을 구비하고, 상기 감광드럼(11)의 주위에는 마이너스(-) 전압을 걸어 감광드럼(11) 표면을 대전시키는 대전장치(12)를 갖게 된다.The consumable developing unit 10 includes a photosensitive drum 11 rotating at a constant speed, and a charging device for charging the surface of the photosensitive drum 11 by applying a negative voltage around the photosensitive drum 11. You have 12.
또한, 대전된 감광드럼(11)의 표면위에 컴퓨터의 화상신호에 의해 디지털로 빛을 온/오프시키는 노광장치(13)가 설치되어 있으며, 토너호퍼(14)에 담겨 있는 토너(15)를 현상로울러(16)에 공급하는 공급로울러(17) 및 상기 현상로울러(16) 위에 토너를 일정한 층으로 규제하는 규제블레이드(18)로 구성되는 현상장치가 일체화 되도록 구성된다.In addition, an exposure apparatus 13 is provided on the surface of the charged photosensitive drum 11 to turn on / off the light digitally by a computer image signal. The toner 15 contained in the toner hopper 14 is developed. A developing apparatus comprising a supply roller 17 for supplying the roller 16 and a regulating blade 18 for regulating the toner in a predetermined layer on the developing roller 16 is configured to be integrated.
그리고 현상된 토너상을 용지 위에 전사하는 로울러타입의 전사장치, 즉 전사로울러(19)등으로 구성되어 일련의 인쇄작업을 수행하도록 구성된다.And a roller type transfer device for transferring the developed toner image onto a sheet, that is, a transfer roller 19 or the like, to perform a series of printing operations.
이와같이 구성된 본고안에 따른 현상유니트(10)는 상기 전사로울러(19)를 일체화되는 유니트에 포함되는 구성을 이루도록 한점에 특징이 있는 것이다.The developing unit 10 according to the present invention configured as described above is characterized in that it forms a configuration included in a unit in which the transfer roller 19 is integrated.
따라서, 본 고안은 동작에 있어서 기존의 전자사진방식의 현상 동작과 동일하므로 본 고안에 따른 동작 설명은 생략한다.Therefore, the present invention is the same as the existing electrophotographic development operation in operation, and thus description of the operation according to the present invention is omitted.
단지, 본 고안은 전사로울러(19)를 소모품화 시킬 수 있도록 일체의 현상 유니트(10)로 구성되므로서 다음과 같은 효과를 얻을 수 있다.However, the subject innovation can be achieved by being configured as an integral developing unit 10 to make the transfer roller 19 consumables.
즉, 본 고안의 효과는 기존의 접촉형로울러 타입의 전사장치는 메인세트측에 장착되어 있으므로서 세트의 수명과 동일시 되어 있었으나 코로나방전형식과는 달리 항상 감광드럼에 접촉되게 되므로 토너 오염의 가능성이 높고 용지 반송 기능도 하기 때문에 지분 등의 오염영향으로 전사불량의 원인이 된 것을 전사로울러를 현상기소모품에 일체화시킴에 따라 소모품의 가격이 약간 상승되기는 하지만 토너 오염등에 의한 전사불량은 현저히 감소시킬 수 있게 되는 효과를 가지게 되는 것이다.In other words, the effect of the present invention is that the conventional contact roller type transfer device is mounted on the main set side and is the same as the life of the set. However, unlike the corona discharge type, the toner contamination is likely to occur since it is always in contact with the photosensitive drum. As it is a high and paper conveying function, the transfer roller is integrated with the developer consumables, which causes the transfer failure due to the contamination of the stock, etc., but the price of the consumables increases slightly. Will have the effect.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR2019960067972U KR19980054775U (en) | 1996-12-31 | 1996-12-31 | Development Unit of Electrophotographic Device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR2019960067972U KR19980054775U (en) | 1996-12-31 | 1996-12-31 | Development Unit of Electrophotographic Device |
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KR19980054775U true KR19980054775U (en) | 1998-10-07 |
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KR2019960067972U KR19980054775U (en) | 1996-12-31 | 1996-12-31 | Development Unit of Electrophotographic Device |
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1996
- 1996-12-31 KR KR2019960067972U patent/KR19980054775U/en not_active Application Discontinuation
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