KR100331304B1 - Device for supplying ink for wet printer - Google Patents

Device for supplying ink for wet printer Download PDF

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Publication number
KR100331304B1
KR100331304B1 KR1019980014839A KR19980014839A KR100331304B1 KR 100331304 B1 KR100331304 B1 KR 100331304B1 KR 1019980014839 A KR1019980014839 A KR 1019980014839A KR 19980014839 A KR19980014839 A KR 19980014839A KR 100331304 B1 KR100331304 B1 KR 100331304B1
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KR
South Korea
Prior art keywords
ink
developing roller
supply pump
supplied
ejection
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KR1019980014839A
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Korean (ko)
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KR19990081104A (en
Inventor
이형구
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삼성전자 주식회사
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Priority to KR1019980014839A priority Critical patent/KR100331304B1/en
Publication of KR19990081104A publication Critical patent/KR19990081104A/en
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Publication of KR100331304B1 publication Critical patent/KR100331304B1/en

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    • 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
    • G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
    • G03G15/104—Preparing, mixing, transporting or dispensing developer
    • 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
    • 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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Wet Developing In Electrophotography (AREA)

Abstract

PURPOSE: A device for supplying ink for a wet printer is provided to improve the quality of printing by uniformly spraying ink to the entire outer surface of a developer roller through many jet holes. CONSTITUTION: A device for supplying ink for a wet printer includes a supply pump(120) connected with an ink storage(12) and an ink spray unit spraying the ink supplied by the supply pump to the outer surface of a developer roller(13). The ink spry unit has many jet holes(134a). The jet holes are communicated with an ink inlet(134). The ink flowing into an ink spray member(130) is jetted simultaneously through the ink jet holes.

Description

습식인쇄기용 잉크 공급장치Ink supply unit for wet press

본 발명은 습식인쇄기용 잉크 공급장치에 관한 것으로, 상세하게는 현상롤러의 전폭에 걸쳐 고른분포로 잉크를 공급할 수 있도록 구조가 개선된 습식인쇄기용 잉크 공급장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink supply device for a wet printer, and more particularly, to an ink supply device for a wet printer having an improved structure to supply ink with an even distribution over the entire width of the developing roller.

일반적으로 칼라 레이저 프린터와 같은 습식 전자사진방식 프린터에는, 도 1에 개략적으로 도시된 바와 같이, 무한궤도를 주행하는 감광벨트(1)의 전사면(1a)에 형성된 정전잠상 영역에 원하는 이미지를 현상하는 현상기(10)와, 상기 현상기(10)내로 잉크를 공급하는 잉크 공급장치가 구비되어 있다. 상기 현상기(10)는 소정색상을 지닌 잉크(Ⅰ)가 저장된 잉크통(12)과, 상기 잉크통(12)으로부터 상기 잉크 공급장치에 의해 공급된 잉크를 상기 감광벨트(1)의 전사면(1a)에 현상하기 위해 그 전사면(1a)에 대향되게 설치된 현상롤러(13)와, 상기 전사면(1a)을 압착함으로써, 현상된 잉크 중 액상의 캐리어를 짜내는 스퀴즈롤러(15)를 구비한다. 상기 잉크 공급장치는 상기 잉크통(12)으로부터 잉크(Ⅰ)를 강제 이송시키기 위한 공급펌프(20)와, 상기 공급펌프(20)에 의해 잉크통(12)으로부터 퍼올려진 잉크(Ⅰ)를 현상롤러(13)의 외주면에 공급하기 위한 잉크 공급부재(30)를 구비한다. 참조부호 14는 현상롤러(13)의 외주면을 크리닝하는 크리닝롤러를 나타내며, 참조부호 16은 그 크리닝롤러의 표면을 훑어내는 블레이드를 나타낸다.Generally, in a wet electrophotographic printer such as a color laser printer, a desired image is developed on an electrostatic latent image region formed on the transfer surface 1a of the photosensitive belt 1 traveling in an endless track, as shown in FIG. A developing device 10 and an ink supply device for supplying ink into the developing device 10. The developing device 10 includes an ink container 12 in which ink I having a predetermined color is stored, and ink supplied by the ink supply device from the ink container 12 to the transfer surface 1a of the photosensitive belt 1. A developing roller 13 provided opposite to the transfer surface 1a for development, and a squeeze roller 15 for squeezing the liquid carrier in the developed ink by pressing the transfer surface 1a. The ink supply device develops a supply pump 20 for forcibly conveying the ink I from the ink container 12, and the ink I pumped up from the ink container 12 by the supply pump 20. An ink supply member 30 for supplying to the outer circumferential surface of 13 is provided. Reference numeral 14 denotes a cleaning roller for cleaning the outer circumferential surface of the developing roller 13, and reference numeral 16 denotes a blade for sweeping the surface of the cleaning roller.

여기서, 상기 잉크 공급부재(30)는 도 2에 도시된 바와 같이, 상기 공급펌프(20)와 연결되는 잉크 유입부(32)와, 상기 현상롤러(13) 측으로 잉크(Ⅰ)가 분사되도록 상기 잉크 유입부(32)와 연통되어 형성된 잉크 분사부(34)를 가진다. 상기 잉크 분사부(34)의 중앙부위에는 잉크(Ⅰ)가 나오는 하나의 잉크 분출구(36)가 마련되어 있다. 이러한 잉크 분출구(36)를 통해 공급되는 잉크(Ⅰ)는 잉크 분사부(34) 양측으로 퍼저나가면서 분사되어 현상롤러(13)의 외주면에 공급된다.Here, as shown in FIG. 2, the ink supply member 30 includes the ink inlet 32 connected to the supply pump 20 and the ink I to be injected toward the developing roller 13. It has an ink ejecting portion 34 formed in communication with the ink inlet portion (32). In the central portion of the ink ejection section 34, one ink ejection port 36 from which the ink I comes out is provided. The ink I supplied through the ink ejection opening 36 is ejected while spreading out to both sides of the ink ejecting portion 34 and supplied to the outer circumferential surface of the developing roller 13.

그런데, 상기와 같은 구성을 가지는 종래의 잉크 공급장치는, 상기 잉크 공급부재에 마련된 하나의 잉크 분출구를 통해 잉크를 공급하기 때문에, 공급되는 잉크가 분사부 전체로 균일하게 퍼지지 못하게 된다. 즉, 분출구가 있는 분사부의 중앙에는 많은 양의 잉크가 분출되어 축적되고, 그 양측면으로는 상대적으로 적은 양의 잉크가 퍼지게되어 현상롤러의 길이방향으로 불균일한 양의 잉크가 공급된다. 따라서, 현상롤러를 통해 전사면의 정전잠상 영역에 공급되는 잉크의 양도 균일하지 못하게 되어, 결국 인쇄의 질이 저하된다.By the way, in the conventional ink supply apparatus having the above-described configuration, since ink is supplied through one ink ejection port provided in the ink supply member, the supplied ink does not uniformly spread throughout the ejection portion. That is, a large amount of ink is ejected and accumulated in the center of the ejection part with the ejection opening, and a relatively small amount of ink is spread on both sides thereof so that an uneven amount of ink is supplied in the longitudinal direction of the developing roller. Therefore, the amount of ink supplied to the electrostatic latent image area of the transfer surface through the developing roller also becomes uneven, resulting in poor print quality.

본 발명은 상기 문제점을 해결하기 위해 창안된 것으로, 현상롤러의 길이방향으로 잉크를 균일하게 공급할 수 있도록 구조가 개선된 습식인쇄기용 잉크 공급장치를 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide an ink supply apparatus for a wet printer having an improved structure so that ink can be uniformly supplied in the longitudinal direction of the developing roller.

도 1은 종래의 잉크 공급장치가 채용된 습식인쇄기의 일부를 개략적으로 보인 도면.1 is a view schematically showing a part of a wet printer employing a conventional ink supply device.

도 2는 도 1에 도시된 종래의 잉크 공급장치의 개략적인 사시도.FIG. 2 is a schematic perspective view of the conventional ink supply apparatus shown in FIG. 1.

도 3은 본 발명에 따른 습식인쇄기용 잉크 공급장치의 개략적인 사시도.Figure 3 is a schematic perspective view of the ink supply device for a wet printer according to the present invention.

< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>

10..현상기 12..잉크통10. Develop 12. Ink box

13..현상롤러 120..공급펌프13. Develop roller 120. Supply pump

130..잉크 분사부재 132..잉크 유입부130. Ink jetting member 132. Ink inlet

134..잉크 분사부 134a..분출구134. Ink jet 134a.

상기 목적을 달성하기 위한 본 발명에 따른 습식인쇄기용 잉크 공급장치는 현상롤러로 공급될 잉크가 저장된 잉크통으로부터 잉크를 강제 이송시키는 공급펌프와, 상기 현상롤러에 근접설치되어 상기 공급펌프에 의해 공급되는 잉크를 상기 현상롤러의 외주면으로 분사하는 잉크 분사수단을 포함하여 된 습식 인쇄기용 잉크 공급장치에 있어서, 상기 잉크 분사수단은 상기 공급펌프에 의해 공급되는 잉크가 유입되는 잉크 유입부와, 상기 잉크 유입부를 통해 유입된 잉크를 상기 현상롤러의 외주면에 분사하도록 잉크가 분출되며 상기 현상롤러의 길이방향으로 배치된 다수의 분출구를 가지는 잉크 분사부재를 포함하는 것을 특징으로 한다.An ink supply apparatus for a wet printing machine according to the present invention for achieving the above object is a supply pump for forcibly transferring ink from an ink reservoir in which ink to be supplied to a developing roller is stored, and is provided in proximity to the developing roller and supplied by the supply pump. An ink supply apparatus for a wet printer, comprising ink ejection means for ejecting ink onto an outer circumferential surface of the developing roller, wherein the ink ejection means includes an ink inflow portion through which ink supplied by the supply pump flows; Ink is ejected to eject the ink introduced through the portion to the outer peripheral surface of the developing roller, characterized in that it comprises an ink ejecting member having a plurality of ejection openings arranged in the longitudinal direction of the developing roller.

이하 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 따른 습식인쇄기용 잉크 공급장치를 상세히 설명하기로 한다.Hereinafter, an ink supply apparatus for a wet printer according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 실시예에 따른 잉크 공급장치의 개략적인 사시도이다. 여기서, 앞서 도시된 도면의 참조부호와 동일한 참조부호는 동일한 부재를 가리킨다.3 is a schematic perspective view of the ink supply apparatus according to the present embodiment. Here, the same reference numerals as the reference numerals of the above-described drawings indicate the same members.

도면을 참조하면, 본 실시예에 따른 잉크 공급장치는 잉크가 저장된 잉크통(12)과 연결된 공급펌프(120)와, 상기 공급펌프(120)에 의해 공급되는 잉크를 현상롤러(13)의 외주면에 분사하는 잉크 분사수단을 포함하여 구성된다.Referring to the drawings, the ink supply apparatus according to the present embodiment, the supply pump 120 is connected to the ink container 12, the ink is stored and the ink supplied by the supply pump 120 to the outer peripheral surface of the developing roller 13 And ink injecting means for ejecting.

상기 잉크 분사수단은 잉크 유입부(132)와, 잉크 분사부(134)가 마련된 잉크 분사부재(130)를 포함하여 구성되며, 이 잉크 분사부재(130)는 상기 잉크 분사부(134)가 현상롤러(13)에 대면되도록 근접설치된다. 또한, 상기 잉크 분사부재(130)에 현상롤러(13)와, 크리닝롤러(14)가 회전가능하게 지지될 수도 있다. 상기 잉크 유입부(132)는 공급펌프(120)와 연결되며, 그 잉크 유입부(132)를 통해 잉크 분사부재(130) 내로 잉크가 유입된다.The ink jetting means includes an ink inlet 132 and an ink jetting member 130 provided with an ink jetting part 134. The ink jetting member 130 is developed by the ink jetting part 134. It is installed close to face the roller 13. In addition, the developing roller 13 and the cleaning roller 14 may be rotatably supported by the ink ejecting member 130. The ink inlet 132 is connected to the supply pump 120, and ink is introduced into the ink jetting member 130 through the ink inlet 132.

한편, 상기 잉크 분사부(134)에는 본 발명의 특징적인 구조인 다수의 분출구(134a)가 형성된다. 이 다수의 분출구(134a)는 현상롤러(13)의 길이방향에 나란하도록 분출부(134)에 배치된다. 이러한, 분출구들(134a) 각각은 상기 잉크 유입부(134)와 연통된다. 따라서, 공급펌프(120)에 의해 잉크 유입부(132)를 통해 잉크 분사부재(130) 내로 유입된 잉크는, 그 잉크 분사부재(130) 내에서 소정의 이동경로를 거친 후 상기 다수의 분출구(134a)를 통해 동시에 분출된다. 그리고, 상기 분출구들(134a)은 분사부(134)에 현상롤러(13)의 길이방향과 나란하게 소정간격으로 복수열로 배치되는 것이 바람직하다.On the other hand, the ink ejecting portion 134 is formed with a plurality of ejection openings (134a) which is a characteristic structure of the present invention. The plurality of ejection openings 134a are arranged in the ejecting portion 134 so as to be parallel to the longitudinal direction of the developing roller 13. Each of these ejection openings 134a is in communication with the ink inlet 134. Therefore, the ink flowing into the ink ejection member 130 through the ink inlet 132 by the supply pump 120 passes through a predetermined movement path in the ink ejection member 130 and then the plurality of ejection openings ( Through 134a). In addition, the ejection openings 134a may be disposed in a plurality of rows in the injection unit 134 at predetermined intervals in parallel with the longitudinal direction of the developing roller 13.

상기 구성을 가지는 본 실시예에 따른 잉크 공급장치에 있어서, 잉크통(12)에 저장된 잉크는 공급펌프(120)에 의해 강제로 퍼올려져서 잉크 분사부재(130)의 잉크 유입부(132)로 유입된다. 잉크 유입부(132)로 유입된 잉크는 공급펌프(120)의 가압력에 의해 잉크 분사부재(130) 내부에 마련된 소정의 이동경로를 따라 이동되어 상기 각 분출구(134a)를 통해 잉크 분사부(134)로 분출된다. 그리고, 각 분출구(134a)로부터 분출된 잉크는 분사부(134)전체로 균일하게 퍼지게 되고, 그 분출력으로 분사부(134)를 통해 현상롤러(13)의 외주면으로 균일하게 분사된다. 이와 같이 다수의 분사구(134a)를 통해 잉크를 분출시킴으로써, 분사부(134)에 잉크가 불균일하게 퍼지는 것을 극복할 수 있다. 따라서, 현상롤러(13)의 외주면에 분사된 잉크는 그 현상롤러(13)에 근접주행하는 감광벨트(1; 도 1참조)의 전사면(1a)에 형성된 정전잠상 영역에 균일하게 현상되므로써, 결국 인쇄의 질을 향상시킬 수 있다.In the ink supply apparatus according to the present embodiment having the above configuration, the ink stored in the ink container 12 is forced up by the supply pump 120 to flow into the ink inlet 132 of the ink ejecting member 130. do. The ink flowing into the ink inlet 132 is moved along a predetermined movement path provided in the ink ejection member 130 by the pressing force of the supply pump 120, and the ink ejection portion 134 through each of the ejection openings 134a. Squirts). Then, the ink ejected from each ejection opening 134a is uniformly spread throughout the ejection section 134 and uniformly ejected to the outer peripheral surface of the developing roller 13 through the ejection section 134 at the ejection output. By ejecting ink through the plurality of injection holes 134a in this manner, it is possible to overcome the spread of ink unevenly to the injection portion 134. Therefore, the ink sprayed on the outer circumferential surface of the developing roller 13 is uniformly developed in the electrostatic latent image region formed on the transfer surface 1a of the photosensitive belt 1 (see Fig. 1) which is in close proximity to the developing roller 13, As a result, the quality of printing can be improved.

상술한 바와 같은 본 발명의 습식인쇄기용 잉크 공급장치에 따르면, 다수의 분출구를 통해 잉크를 분출시킴으로써, 현상롤러의 외주면 전체에 걸쳐 잉크가 균일하게 분사되므로 인쇄의 질을 향상시킬 수 있다.According to the ink supply apparatus for a wet printer of the present invention as described above, by ejecting ink through a plurality of ejection openings, the ink is uniformly sprayed over the entire outer peripheral surface of the developing roller, it is possible to improve the printing quality.

Claims (1)

현상롤러로 공급될 잉크가 저장된 잉크통으로부터 잉크를 강제 이송시키는 공급펌프와, 상기 현상롤러에 근접설치되어 상기 공급펌프에 의해 공급되는 잉크를 상기 현상롤러의 외주면으로 분사하는 잉크 분사수단을 포함하여 된 습식인쇄기용 잉크 공급장치에 있어서,And a supply pump for forcibly transferring ink from the ink container in which the ink to be supplied to the developing roller is stored, and ink ejecting means installed in proximity to the developing roller to inject ink supplied by the supply pump to the outer circumferential surface of the developing roller. An ink supply apparatus for a wet printer, 상기 잉크 분사수단은,The ink ejection means, 상기 공급펌프에 의해 공급되는 잉크가 유입되는 잉크 유입부와, 상기 잉크 유입부를 통해 유입된 잉크를 상기 현상롤러의 외주면에 분사하도록 상기 현상롤러의 길이방향으로 배치된 다수의 잉크분출구를 가지는 잉크 분사부재를 포함하는 것을 특징으로 하는 습식인쇄기용 잉크 공급장치.An ink inlet having an ink inlet through which the ink supplied by the supply pump flows, and a plurality of ink ejection ports arranged in the longitudinal direction of the developing roller so as to eject the ink introduced through the ink inlet to the outer peripheral surface of the developing roller; An ink supply apparatus for a wet printer, comprising a member.
KR1019980014839A 1998-04-25 1998-04-25 Device for supplying ink for wet printer KR100331304B1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5682268A (en) * 1979-12-08 1981-07-04 Ricoh Co Ltd Multinozzle head
JPS60247668A (en) * 1984-05-24 1985-12-07 Fuji Xerox Co Ltd Toner supplying device of copying machine
JPH06167889A (en) * 1992-11-30 1994-06-14 Mitsubishi Paper Mills Ltd Electrophotographic wet type developing device
JPH07175332A (en) * 1993-12-21 1995-07-14 Tohoku Ricoh Co Ltd Developer supply device
JPH08179624A (en) * 1994-12-27 1996-07-12 Nec Corp Developing device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5682268A (en) * 1979-12-08 1981-07-04 Ricoh Co Ltd Multinozzle head
JPS60247668A (en) * 1984-05-24 1985-12-07 Fuji Xerox Co Ltd Toner supplying device of copying machine
JPH06167889A (en) * 1992-11-30 1994-06-14 Mitsubishi Paper Mills Ltd Electrophotographic wet type developing device
JPH07175332A (en) * 1993-12-21 1995-07-14 Tohoku Ricoh Co Ltd Developer supply device
JPH08179624A (en) * 1994-12-27 1996-07-12 Nec Corp Developing device

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