KR200158758Y1 - Apparatus to prevent toner from being precipitated in liquid development units - Google Patents

Apparatus to prevent toner from being precipitated in liquid development units Download PDF

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Publication number
KR200158758Y1
KR200158758Y1 KR2019970019493U KR19970019493U KR200158758Y1 KR 200158758 Y1 KR200158758 Y1 KR 200158758Y1 KR 2019970019493 U KR2019970019493 U KR 2019970019493U KR 19970019493 U KR19970019493 U KR 19970019493U KR 200158758 Y1 KR200158758 Y1 KR 200158758Y1
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KR
South Korea
Prior art keywords
ink
storage container
toner
gear
stirring member
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KR2019970019493U
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Korean (ko)
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KR19990006072U (en
Inventor
신성수
Original Assignee
윤종용
삼성전자주식회사
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Priority to KR2019970019493U priority Critical patent/KR200158758Y1/en
Publication of KR19990006072U publication Critical patent/KR19990006072U/en
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Publication of KR200158758Y1 publication Critical patent/KR200158758Y1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/385—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/06—Ink jet characterised by the jet generation process generating single droplets or particles on demand by electric or magnetic field
    • B41J2002/061—Ejection by electric field of ink or of toner particles contained in ink

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  • Wet Developing In Electrophotography (AREA)

Abstract

잉크저장용기 내의 잉크를 교반시키도록 그 잉크에 수용되는 잉크교반부재와, 현상부에서 회수관을 통해 상기 잉크저장용기로 낙하되는 잉크의 낙차를 이용하여 상기 잉크교반부재를 구동시키는 구동수단을 포함하여, 잉크저장용기 내에서 상기 잉크 내의 토너가 침전되는 것을 방지하기 위한 습식 현상기유니트의 토너 침전방지장치가 개시된다.An ink stirring member accommodated in the ink to stir the ink in the ink storage container, and driving means for driving the ink stirring member by using a drop of ink falling from the developing portion to the ink storage container through a recovery tube. Thus, a toner deposition preventing device of a wet developer unit for preventing deposition of toner in the ink in an ink reservoir is disclosed.

Description

습식 현상기유니트의 토너 침전 방지장치{Apparatus to prevent toner from being precipitated in liquid development units}Apparatus to prevent toner from being precipitated in liquid development units}

본 고안은 전자사진방식을 이용한 인쇄기의 습식 현상기유니트에 관한 것으로서, 보다 상세하게는 고체 토너와 액체 캐리어가 혼합된 잉크가 저장된 잉크저장용기에서 토너가 침전되는 것을 방지하기 위한 습식 현상기유니트의 토너 침전방지장치에 관한 것이다.The present invention relates to a wet developer unit of a printing press using an electrophotographic method, and more particularly, toner precipitation of a wet developer unit to prevent toner from depositing in an ink storage container in which an ink mixed with a solid toner and a liquid carrier is stored. It relates to a prevention device.

일반적으로 습식 현상기유니트에는, 도 1에 도시된 바와 같이, 소정의 색상을 가지는 고체상의 토너 및 용매의 기능을 하는 액상의 캐리어 소정의 비율로 혼합된 잉크(I)가 저장된 잉크저장용기(11)와, 그 잉크저장용기(11)로부터 분사노즐(13)을 통해 잉크를 공급받아 예를 들어 감광벨트(14)와 같은 감광수단 위에 원하는 이미지가 형성되도록 그 잉크를 전사하는 현상부(12)가 구비되어 있다.Generally, the wet developing unit includes an ink storage container 11 in which ink I mixed in a predetermined ratio of a solid carrier having a predetermined color and a liquid carrier serving as a solvent is stored, as shown in FIG. 1. And a developing part 12 which receives ink from the ink storage container 11 through the injection nozzle 13 and transfers the ink so that a desired image is formed on a photosensitive means such as, for example, a photosensitive belt 14. It is provided.

상기 구성의 습식 현상기유니트는, 인쇄작업시 잉크저장용기(11)로부터 잉크공급용 펌프(15)를 통해 상기 현상부(12)로 잉크가 공급되고, 상기 현상부(12)에서 상기 감광벨트(14)로 전사되고 남은 잉크는 회수관(16)을 통해 다시 잉크저장용기(11)로 회수되는 순환구조로 되어 있다.In the wet developing unit of the above configuration, ink is supplied from the ink storage container 11 to the developing part 12 through the ink supply pump 15 during the printing operation, and the photosensitive belt ( 14 is transferred to the ink storage container 11 through the recovery pipe 16 is a circulation structure that is recovered.

그리고, 습식 현상기유니트에는 예를 들어 인쇄작업이 장시간 수행되지 않을 때 잉크(I)가 순환되지 않아 정체된 상태에서 고체상의 토너가 상기 잉크저장용기(11)의 저면에 침전되는 것을 방지하기 위한 토너 침전 방지장치가 마련되어 있다.In the wet developing unit, the toner for preventing solid toner from being deposited on the bottom surface of the ink storage container 11, for example, when the ink I is not circulated when the printing operation is not performed for a long time. Precipitation prevention device is provided.

상기 토너 침전 방지장치는, 상기 잉크저장용기(11) 하방에 구동모터(17)에 의해 회전되는 제 1마그네트(18a)가 설치되고, 상기 잉크저장용기(11) 저면에 설치된 제 2마그네트(18b)가 그 제 1마그네트(18a)의 자력에 대응되어 회전됨으로써, 토너가 침전되지 않고 골고루 혼합된 상태를 유지하도록 잉크를 교반시키게 된다. 도 1에서 참조부호 121은 감광벨트(14)에 근접 설치되도록 현상부(12) 내부에 마련되어 그 감광벨트(14)의 주행방향과 동일하게 회전하면서 잉크저장용기(11)에서 공급되는 잉크를 감광벨트(14)에 전사하는 현상롤러를 나타낸 것이다. 그리고 참조부호 111 및 112는 상기 잉크저장용기(11)에 저장된 잉크(I)가 항상 일정한 혼합비율이 유지되도록 소정 공급부(미도시)로부터 토너와 캐리어가 공급되는 토너유입구 및 캐리어유입구를 각각 나타낸 것이다.The toner deposition preventing device has a first magnet 18a which is rotated by the driving motor 17 under the ink storage container 11, and a second magnet 18b provided on the bottom surface of the ink storage container 11. ) Rotates in response to the magnetic force of the first magnet 18a, thereby stirring the ink so that the toner does not precipitate and remains evenly mixed. In FIG. 1, reference numeral 121 is provided inside the developing part 12 so as to be installed close to the photosensitive belt 14, and rotates in the same direction as the traveling direction of the photosensitive belt 14 to reduce the ink supplied from the ink storage container 11. The developing roller which is transferred to the belt 14 is shown. Reference numerals 111 and 112 denote toner inlets and carrier inlets through which a toner and a carrier are supplied from a predetermined supply unit (not shown) so that the ink I stored in the ink storage container 11 is always maintained at a constant mixing ratio. .

그런데, 종래의 토너 침전 방지장치는, 잉크를 교반시키는 마그네트(18b)를 회전시키기 위한 구동모터(17)가 별도로 마련되어야 하므로 구조가 복잡해지고 따라서 조립성이 떨어지는 문제점이 있다.By the way, the conventional toner deposition preventing device has a problem that the drive motor 17 for rotating the magnet 18b for stirring the ink must be provided separately, which results in complicated structure and thus poor assembly.

본 고안은 상기한 문제점을 해결하기 위하여 안출된 것으로서, 잉크저장용기로 회수되는 잉크를 이용하여 잉크저장용기의 저장된 잉크를 교반시킴으로써 그 구조가 간단해지도록 개선된 습식 현상기유니트의 토너 침전 방지장치를 제공하는 데 그 목적이 있다.The present invention has been made to solve the above problems, an improved toner deposition preventing device of the wet developer unit is improved to simplify the structure by stirring the stored ink of the ink storage container using the ink recovered in the ink storage container. The purpose is to provide.

도 1은 종래 토너 침전 방지장치가 채용된 습식 현상기유니트의 개략적 구성도,1 is a schematic configuration diagram of a wet developer unit employing a conventional toner deposition preventing device,

도 2는 본 고안에 의한 토너 침전 방지장치가 채용된 습식 현상기유니트의 개략적 구성도,2 is a schematic configuration diagram of a wet developer unit employing a toner precipitation preventing apparatus according to the present invention,

도 3은 도 2에 도시된 물레바퀴부재 부위의 개략적 측면도.FIG. 3 is a schematic side view of the part of the wheel unit shown in FIG. 2; FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

11 : 잉크저장용기 12 : 현상부11: ink storage container 12: developing unit

13 : 분사노즐 15 : 펌프13 injection nozzle 15 pump

16 : 회수관 21 : 잉크교반부재16: recovery tube 21: ink stirring member

22 : 제 1기어 23 : 제 2기어22: first gear 23: second gear

24 : 회전샤프트 25 : 물레바퀴부재24: rotating shaft 25: water wheel member

25a : 날개부 I_1 : 저장잉크25a: wing part I_1: storage ink

I_2 : 회수잉크I_2: Recovery Ink

상기한 문제점을 해결하기 위한 본 고안에 의한 습식 현상기유니트의 토너 침전 방지장치는, 현상부로 공급될 잉크와 상기 현상부에서 사용된 후 회수관을 통해 낙하되는 잉크를 저장하는 잉크저장용기 내에서 상기 잉크 내의 토너가 침전되는 것을 방지하기 위한 것에 있어서, 상기 잉크저장용기 내의 잉크를 교반시키도록 그 잉크에 수용되는 잉크교반부재와, 상기 회수관을 통해 낙하되는 잉크의 낙차를 이용하여 상기 잉크교반부재를 구동시키는 구동수단을 포함하는 것을 특징으로 한다.Toner deposition preventing device of the wet developer unit according to the present invention for solving the above problems, in the ink storage container for storing the ink to be supplied to the developing unit and the ink is dropped through the recovery pipe after being used in the developing unit In order to prevent the toner in the ink from settling, the ink stirring member is accommodated by using an ink stirring member accommodated in the ink to stir the ink in the ink storage container and a drop of ink dropped through the recovery tube. It characterized in that it comprises a drive means for driving.

상기 구동수단은, 상기 잉크저장용기에 회전 가능하게 설치되어 상기 잉크교반부재와 기어연결된 회전샤프트와, 상기 회전샤프트에 동축적으로 고정되며 상기 회수관의 하방에 위치되어 그 회수관을 통해 낙하되는 잉크에 의해 회전되는 물레바퀴부재를 포함하는 것이 바람직하다.The driving means is rotatably installed in the ink storage container and is connected to the ink shaft and the gear shaft, the shaft is fixed coaxially to the rotating shaft and located below the recovery pipe is dropped through the recovery pipe It is preferable to include a water wheel member rotated by ink.

이하, 첨부된 도면을 참조하면서 본 고안에 따른 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 고안에 의한 토너 침전 방지장치가 채용된 습식 현상기유니트의 개략적 구성도로서, 이하, 도면의 참조부호 중 앞서 설명된 도면의 참조부호와 동일한 참조부호는 동일한 구성요소를 나타낸 것이다. 그리고 설명의 편의를 위해 잉크저장용기(11)에 저장된 잉크를 저장잉크(I_1), 회수관(16)을 통해 현상부(12)로부터 잉크저장용기(11)로 회수되는 잉크를 회수잉크(I_2)라 한다.FIG. 2 is a schematic configuration diagram of a wet developer unit employing a toner deposition preventing apparatus according to the present invention. Hereinafter, the same reference numerals as the previous reference numerals in the drawings indicate the same components. For the convenience of explanation, the ink recovered in the ink storage container 11 from the developing unit 12 through the storage ink I_1 and the collecting pipe 16 is stored in the ink storage container 11, and the recovery ink I_2. Is called.

본 고안에 따른 습식 현상기유니트의 토너 침전방지장치는, 현상부(12)에서 회수관(16)을 통해 잉크저장용기(11)로 회수되는 회수잉크(I_2)를 이용하여 잉크저장용기(11)에 수용된 저장잉크(I_1)를 교반시키도록 된 것에 특징이 있다.The toner precipitation preventing apparatus of the wet developer unit according to the present invention is an ink storage container 11 using a recovery ink I_2 recovered from the developing part 12 to the ink storage container 11 through the recovery pipe 16. It is characterized in that the storage ink (I_1) accommodated in the agitated.

상기 잉크저장용기(11)에는, 도 2에 도시된 바와 같이 그 내부의 저장잉크(I_1)에 수용되어 회전가능한 잉크교반부재(21)가 설치되어 있다. 상기 잉크교반부재(21)는 물레방아 형상의 드럼구조로서, 회전시 상기 저장잉크(I_1)를 휘저어 유동시킴으로써 토너 등의 침전물이 생기지 않도록 한다.As shown in FIG. 2, the ink storage container 11 is provided with an ink stirring member 21 which is accommodated in the storage ink I_1 therein and is rotatable. The ink stirring member 21 has a watermill-shaped drum structure, and stirs and flows the storage ink I_1 so as to prevent deposits such as toner.

상기 잉크교반부재(21)를 회전시키기 위한 구동수단으로, 상기 잉크교반부재(21)의 회전축 단부에 마련된 제 1기어(22)와, 상기 잉크저장용기(11) 내벽에 회전가능하게 지지되고 일측에 상기 제 1기어(22)에 맞물리는 제 2기어(23)가 마련된 회전샤프트(24)와, 상기 회전샤프트(24)에 지지되고 상기 잉크저장용기(11) 내부의 상기 회수관(16) 하방에 위치하도록 마련된 원형의 물레바퀴부재(25)가 구비된다.As a driving means for rotating the ink stirring member 21, the first gear 22 provided at an end of the rotating shaft of the ink stirring member 21 and the inner side of the ink storage container 11 are rotatably supported on one side. A rotary shaft 24 provided with a second gear 23 engaged with the first gear 22, and the recovery pipe 16 supported by the rotary shaft 24 and inside the ink storage container 11. A circular wheel member 25 is provided to be positioned below.

상기 물레바퀴부재(25)는, 도 3에 도시된 바와 같이, 그 외주면을 따라 상기 회전샤프트(24)를 중심으로 상호 대칭적으로 날개부(25a)가 형성된 것으로 상기 날개부(25a) 중 적어도 하나가 상기 회수관(16)을 통과하여 낙하하는 회수잉크(I_2)의 경로상에 위치하도록 되어 있다. 따라서, 상기 물레바퀴부재(25)는 상기 날개부(25a)가 회수잉크(I_2)에 순차적으로 압압됨으로써 회전된다.As shown in FIG. 3, the water wheel member 25 has wings 25a formed symmetrically with respect to the rotary shaft 24 along its outer circumferential surface, and at least one of the wings 25a. One is located on the path of the recovery ink I_2 falling through the recovery tube 16. Therefore, the water wheel member 25 is rotated by pressing the wing portion 25a sequentially to the recovery ink (I_2).

이하, 본 고안에 따른 토너 침전 방지장치의 동작을 설명한다.Hereinafter, the operation of the toner precipitation preventing apparatus according to the present invention will be described.

먼저, 인쇄작업 중에는 상기 현상부(12)로부터 회수관(16)을 통해 회수되는 회수잉크(I_2)가 상기 잉크저장용기(11)로 낙하하면서, 그 회수잉크(I_2)의 경로상에 위치한 일 날개부(25a)를 압압하여 상기 물레바퀴부재(25)를 회전시킨다. 일단 상기 물레바퀴부재(25)가 회전되면 다른 날개부(25a)가 순차적으로 회수잉크(I_2)에 의해 압압됨으로서 그 물레바퀴부재(25)가 지속적으로 회전된다.First, during the printing operation, the recovery ink I_2 recovered from the developing unit 12 through the recovery pipe 16 falls onto the ink storage container 11 and is located on the path of the recovery ink I_2. The blade portion 25a is pressed to rotate the wheel member 25. Once the water wheel member 25 is rotated, the other wing portion 25a is sequentially pressed by the recovery ink I_2, so that the water wheel member 25 is continuously rotated.

상기 물레바퀴부재(25)가 회전되면, 그 물레바퀴부재(25)를 지지하는 회전샤프트(24)가 함께 회전하고 그 회전샤프트(24) 단부에 마련된 제 2기어(23)에 맞물린 제 1기어(22)에 연동되어 상기 잉크교반부재(21)가 회전된다. 이와 같이 잉크교반부재(21)가 회전되면, 그 잉크교반부재(21)가 저장잉크(I_1)를 휘저어 교반시킴으로써 저장잉크(I_1)가 골고루 혼합된 상태를 유지시킨다.When the spinning wheel member 25 is rotated, the first rotation gear 24 is rotated together to support the spinning wheel member 25 and engaged with the second gear 23 provided at the end of the rotation shaft 24. The ink stirring member 21 is rotated in conjunction with 22. When the ink stirring member 21 is rotated as described above, the ink stirring member 21 is stirred by stirring the storage ink I_1 to maintain the mixed state of the storage ink I_1 evenly.

한편, 인쇄작업이 오랫동안 이루어지지 않은 상태에서 인쇄작업이 행해지는 경우, 예를 들어 인쇄기의 제어부(미도시)가 이를 인지하여 상기 펌프(15)만을 작동시키는 워밍업(warming up)동작을 실행시킨다. 그러면 분사노즐(13)을 통해 상기 현상부(12)로 공급된 저장잉크(I_1)는 그대로 회수관(16)을 통해 회수되면서 상술한 일련의 경로를 통해 상기 잉크교반부재(21)를 회전시킴으로써 상기 저장잉크(I_1)가 다시 골고루 혼합된 상태를 유지하도록 한다. 이후, 인쇄작업이 이루어진다.On the other hand, when a print job is performed in a state where the print job has not been performed for a long time, for example, a controller (not shown) of the printer recognizes this and executes a warming up operation of operating only the pump 15. Then, the storage ink I_1 supplied to the developing part 12 through the injection nozzle 13 is recovered through the recovery pipe 16 as it is, thereby rotating the ink stirring member 21 through the above-described series of paths. The storage ink I_1 is again maintained evenly mixed. After that, a printing operation is performed.

상술한 바와 같이 본 고안에 따른 습식 현상기유니트의 토너 침전 방지장치는, 현상 후 회수되는 회수잉크를 이용하여 잉크저장용기에 저장된 저장잉크를 교반시키도록 되어 있으므로 별도의 구동원이 필요하지 않아 구조가 간단해진다.As described above, the apparatus for preventing toner precipitation of the wet developer unit according to the present invention is designed to stir the storage ink stored in the ink storage container by using the recovery ink recovered after development, so that a separate driving source is not necessary and the structure is simple. Become.

Claims (1)

현상부로 공급될 잉크와 상기 현상부에서 사용된 후 회수관을 통해 낙하되는 잉크를 저장하는 잉크저장용기 내에서 상기 잉크 내의 토너가 침전되는 것을 방지하기 위한 습식 현상기유니트의 토너 침전방지장치에 있어서,In the toner deposition preventing apparatus of the wet developing unit unit for preventing the toner in the ink from being deposited in the ink storage container for storing the ink to be supplied to the developing unit and the ink that is dropped through the recovery tube after being used in the developing unit, 상기 잉크저장용기 내의 잉크를 교반시키도록 그 잉크속에 수용되어 회전운동 가능하게 설치된 잉크교반부재와,An ink stirring member accommodated in the ink and rotatably installed to stir the ink in the ink storage container; 상기 회수관을 통해 낙하되는 잉크를 이용하여 상기 잉크교반부재를 구동시키는 구동수단으로서,As driving means for driving the ink stirring member using the ink falling through the recovery pipe, 상기 잉크교반부재의 회전축에 동축상으로 설치되어 연동되는 제1기어(22)와, 상기 회수관의 하방부에 회전가능하게 설치되며 상기 회수관으로부터 낙하되는 잉크가 일정한 양으로 고이도록 형성된 복수의 날개부(25a)가 방사상으로 균등하게 배치된 물레바퀴부재(25)와, 상기 제1기어와 맞물리도록 상기 물레바퀴부재의 회전샤프트(24)에 동축상으로 설치되어 연동되는 제2기어(23)를 포함하고,A plurality of first gears 22 coaxially installed on the rotating shaft of the ink stirring member and rotatably installed at a lower portion of the collecting pipe, and formed such that ink falling from the collecting pipe is accumulated in a predetermined amount; The second gear 23 which is coaxially installed on and interlocked with the water wheel member 25 in which the wing portions 25a are evenly disposed radially and the rotation shaft 24 of the water wheel member so as to engage with the first gear. ), 상기 회수관으로부터 낙하되는 잉크가 상기 물레바퀴부재의 적어도 하나의 날개부에 의해 일정한 양으로 고여 저장되어 그 압압력이 날개부를 가압하여 잉크 낙하 방향으로 회동시킴으로써, 상기 물레바퀴부재와 제1기어 및 제2기어에 의해 연결된 상기 잉크교반부재(21)를 회전시켜 잉크를 교반시킬 수 있도록 된 것을 특징으로 하는 습식 현상기유니트의 토너 침전방지장치.The ink falling from the collecting pipe is collected and stored in a predetermined amount by at least one wing portion of the water wheel member, and the pressing force presses the wing portion and rotates in the ink drop direction, whereby the water wheel member and the first gear and The toner deposition preventing apparatus of the wet developer unit, characterized in that the ink stirring member (21) connected by the second gear can be rotated to stir the ink.
KR2019970019493U 1997-07-23 1997-07-23 Apparatus to prevent toner from being precipitated in liquid development units KR200158758Y1 (en)

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