KR920015171A - Image forming apparatus using the charging device and the copper device disposed close to the member to be charged - Google Patents

Image forming apparatus using the charging device and the copper device disposed close to the member to be charged Download PDF

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Publication number
KR920015171A
KR920015171A KR1019920001005A KR920001005A KR920015171A KR 920015171 A KR920015171 A KR 920015171A KR 1019920001005 A KR1019920001005 A KR 1019920001005A KR 920001005 A KR920001005 A KR 920001005A KR 920015171 A KR920015171 A KR 920015171A
Authority
KR
South Korea
Prior art keywords
charging
voltage
resistive layer
filling
charged
Prior art date
Application number
KR1019920001005A
Other languages
Korean (ko)
Inventor
코이찌 오쿠다
키미오 나카하타
순지 나카무라
쥰지 아라야
요지 토모유키
싱이찌 쯔키다
아키라 하야카와
다이조 후쿠자와
Original Assignee
야마지 게이조
캐논 가부시기가이샤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP665191A external-priority patent/JPH04240670A/en
Priority claimed from JP1100391A external-priority patent/JPH04245265A/en
Application filed by 야마지 게이조, 캐논 가부시기가이샤 filed Critical 야마지 게이조
Publication of KR920015171A publication Critical patent/KR920015171A/en

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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
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0208—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus
    • 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
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • 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
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0208—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus
    • G03G15/025—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus by bringing a charging member in the vicinity with the member to be charged, e.g. proximity charging, forming microgap

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)

Abstract

내용 없음No content

Description

충전되는 부재에 가깝게 배치된 충전장치 및 동장치를 사용하는 영상형성장치Image forming apparatus using the charging device and the copper device disposed close to the member to be charged

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 실시예에 의한 영상형성장치의 단면도, 제2A도는 본 발명의 실시예에 의한 충전장치의 단면도, 제2B는 제2A도에 도시한 충전장치의 정면도, 제3도는 충전부재와 감광드럼사이에 가해진 AC 전압과 감광드럼의 표면전위사이의 관계를 도시한 그래프.1 is a cross-sectional view of an image forming apparatus according to an embodiment of the present invention, FIG. 2A is a cross-sectional view of a charging device according to an embodiment of the present invention, FIG. 2B is a front view of the charging device shown in FIG. 2A, and FIG. Graph showing the relationship between the AC voltage applied between the member and the photosensitive drum and the surface potential of the photosensitive drum.

Claims (10)

그 사이에 작은 틈새를 가진 충전되는 부재에 대향하는 충전부재와; 그리고 충전되는 부재와 상기 충전부재와의 사이에 발전전압을 가하는 전압적용수단을 구비하고; 상기 충전부재는 저항층을 가지고, 발진전압에 대한 저항층의 리액턴스는 저항층의 저항보다 작은 충전장치.A filling member opposing the filling member having a small gap therebetween; And voltage application means for applying a power generation voltage between the member to be charged and the charging member; The charging member has a resistive layer, and the reactance of the resistive layer with respect to the oscillation voltage is smaller than the resistance of the resistive layer. 제1항에 있어서, 상기 리액턴스의 10배는 상기 저항층의 저항보다 작은 충전장치.The charging device of claim 1, wherein 10 times the reactance is smaller than the resistance of the resistive layer. 제1항에 있어서, 상기 충전부재가 충전되는 부재를 충전하는데 효과적인 지역에서 충전되는 부재와 상기 충전부재 사이에 틈새를 유지하도록, 그 지역밖에서 충전되는 부재와 접촉하고 있는 틈새를 유지하는 부재를 포함하는 충전장치.2. The device of claim 1, further comprising a member for maintaining a gap in contact with a member to be filled outside said region to maintain a gap between said member and said member to be filled in a region effective for filling said member to be filled. Charging device. 제1항 또는 제3항에 있어서, 그 틈새는 1㎜ 이하인 충전장치.The filling apparatus according to claim 1 or 3, wherein the gap is 1 mm or less. 제1항에 있어서, 발진전압은 사인파의 형태로 되어 있는 충전장치.The charging device according to claim 1, wherein the oscillation voltage is in the form of a sine wave. 제1항에 있어서, 상기 충전부재를 통해서 상기 발진전압의 진동 요소의 소정의 정전류를 제공하는 정전류제어 수단을 포함하는 충전수단.The charging means according to claim 1, comprising constant current control means for providing a predetermined constant current of the oscillating element of the oscillation voltage through the charging member. 제1항 또는 제6항에 있어서, 상기 진동전압은 비-진동요소를 포함하고, 상기 장치는 또한 상기 충전부재 및 충전되는 부재를 통해서 공급되는 비-진동요소의 소정전압을 제공하는 정전압 제어수단을 포함하는 충전장치.7. The constant voltage control means according to claim 1 or 6, wherein the vibration voltage includes a non-vibration element, and the apparatus also provides a predetermined voltage of the non-vibration element supplied through the charging member and the member to be charged. Filling apparatus comprising a. 제1항에 있어서, 상기 충전부재는 충전되는 부재의 정전기용량보다 큰 정전기용량을 가진 충전장치.The charging device of claim 1, wherein the charging member has an electrostatic capacity greater than that of the member to be charged. 영상베어링 부재와; 상기 영상베어링부재로 부터 작은 틈새를 가지고 배치된 충전부재와; 그리고 상기 영상 베어링부재와 상기 충전부재사이에 발진전압을 가하는 전압적용수단을 구비하고; 상기 충전부재는 저항층을 가지고, 진동전압에 대한 상기 저항층의 리액턴스는 상기 저항층의 저항보다 작은 영상형성장치.An image bearing member; A filling member disposed with a small gap from the image bearing member; And voltage application means for applying an oscillation voltage between the image bearing member and the charging member. And the charging member has a resistive layer, and a reactance of the resistive layer with respect to a vibration voltage is smaller than that of the resistive layer. 제9항에 있어서, 상기 영상형성장치에 분리가능하게 부착할 수 있는 처리유닛을 포함하고, 상기 처리유닛은 상기 영상베어링부재와 상기 충전부재를 포함하는 영상형성장치.The image forming apparatus of claim 9, further comprising a processing unit detachably attachable to the image forming apparatus, wherein the processing unit includes the image bearing member and the filling member. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920001005A 1991-01-24 1992-01-24 Image forming apparatus using the charging device and the copper device disposed close to the member to be charged KR920015171A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP91-6651 1991-01-24
JP665191A JPH04240670A (en) 1991-01-24 1991-01-24 Electrostatic charging device and image forming device provided therewith
JP91-11003 1991-01-31
JP1100391A JPH04245265A (en) 1991-01-31 1991-01-31 Electrifier and image forming device with it

Publications (1)

Publication Number Publication Date
KR920015171A true KR920015171A (en) 1992-08-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920001005A KR920015171A (en) 1991-01-24 1992-01-24 Image forming apparatus using the charging device and the copper device disposed close to the member to be charged

Country Status (2)

Country Link
EP (1) EP0496399A3 (en)
KR (1) KR920015171A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0587540B1 (en) * 1992-08-25 1999-10-13 Canon Kabushiki Kaisha Toner for developing electrostatic image and image forming method
EP1074893B1 (en) * 1999-08-02 2006-11-29 Ricoh Company, Ltd. Apparatus for image forming capable of effectively generating a consistent charge potential
CN1182442C (en) * 1999-10-15 2004-12-29 株式会社理光 Photoreceptor component and image forming device
JP4455454B2 (en) 2004-09-02 2010-04-21 キヤノン株式会社 Charging member, process cartridge, and electrophotographic apparatus
US7664434B2 (en) 2004-12-28 2010-02-16 Canon Kabushiki Kaisha Charging member, process cartridge and electrophotographic apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60205550A (en) * 1984-03-30 1985-10-17 Fuji Xerox Co Ltd Electrifying device
US4727453A (en) * 1986-12-22 1988-02-23 Xerox Corporation Alternating current inductive charging of a photoreceptor
DE3885830T2 (en) * 1987-09-14 1994-06-16 Canon Kk Charger.
JP2607109B2 (en) * 1988-01-11 1997-05-07 キヤノン株式会社 Charging device
JPH0693150B2 (en) * 1988-04-20 1994-11-16 キヤノン株式会社 Image forming device
US5177534A (en) * 1989-12-04 1993-01-05 Canon Kabushiki Kaisha Image forming apparatus with contact-type charge means

Also Published As

Publication number Publication date
EP0496399A3 (en) 1993-07-07
EP0496399A2 (en) 1992-07-29

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E902 Notification of reason for refusal
E601 Decision to refuse application