KR960015100A - Electrophotography using photoreceptors - Google Patents

Electrophotography using photoreceptors Download PDF

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Publication number
KR960015100A
KR960015100A KR1019950036983A KR19950036983A KR960015100A KR 960015100 A KR960015100 A KR 960015100A KR 1019950036983 A KR1019950036983 A KR 1019950036983A KR 19950036983 A KR19950036983 A KR 19950036983A KR 960015100 A KR960015100 A KR 960015100A
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KR
South Korea
Prior art keywords
electrophotographic method
potential
exposure
formula
photosensitive member
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KR1019950036983A
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Korean (ko)
Inventor
미쓰지 쓰지다
나리아끼 다나까
다까시 데라다
다꾸지 데라다
이찌로 야마사도
에이이찌 미야모도
Original Assignee
미타 요시히로
미타 고교 가부시키가이샤
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Publication of KR960015100A publication Critical patent/KR960015100A/en

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/22—Processes involving a combination of more than one step according to groups G03G13/02 - G03G13/20
    • 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
    • G03G15/065—Arrangements for controlling the potential of the developing electrode

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

1. 청구범위에 기재된 발명이 속한 기술분야1. TECHNICAL FIELD OF THE INVENTION

본 발명은 감광체 특히 유기감광체를 사용하여 저노광량에서의 고감도특성을 이용하는 전자사진법에 관한 것이다.The present invention relates to an electrophotographic method that uses a photosensitive member, in particular an organophotoreceptor, to utilize high sensitivity at low exposure doses.

2. 발명이 해결하려고 하는 기술적과제2. The technical problem to be solved by the invention

본 발명은 유기감광체를 사용하여 장치비용도 낮고 자원절약 및 에너지절약형의 전자사진법을 제공하는 데 있다.An object of the present invention is to provide an electrophotographic method of using an organophotoreceptor with low device cost and saving energy and energy.

3. 발명의 해결방법의 요지3. Summary of Solution to Invention

감광체를 대전시키고 화상노광시켜서 정전잠상을 형성하고 이 정전잠상을 현상바이어스전압이 인가된 상태로 현상하는 것으로 이루어진 전자사진법에 있어서, 상기한 현상바이어스전압을 그 극성이 감광체의 대전극성과 동일하며 또한 광감쇠특성곡선의 고노광량영역근사곡선과 저노광량영역근사곡선과의 교차점에 상당하는 전위(EH)보다도 높은 전위로 설정하는 것을 특징으로 하는 전자사진법이다.In an electrophotographic method in which a photosensitive member is charged and an image is exposed to form an electrostatic latent image, and the electrostatic latent image is developed with a developing bias voltage applied thereto, the developing bias voltage has the same polarity as that of the counter electrode of the photosensitive member. The electrophotographic method is characterized by setting the potential higher than the potential E H corresponding to the intersection of the high exposure region approximation curve and the low exposure region approximation curve of the light attenuation characteristic curve.

4. 발명의 중요한 용도4. Important uses of the invention

본 발명은 감광체 특히 반감노광량의 전후로부터 전하의 손실이 완만하게되는 감광체를 흐림을 발생시키는 일이 없이 고속전자사진시스템에 적용시키는 전자사진법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic method in which a photoconductor, in particular, a photoconductor with a slow charge loss from before and after a half exposure amount, is applied to a high-speed electrophotographic system without generating a blur.

Description

감광체를 사용하는 전자사진법Electrophotography using photoreceptors

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 감광체의 화상노광에 있어서 표면전위와 처리공정과의 관계를 설명하는 설명도,1 is an explanatory diagram for explaining the relationship between the surface potential and the treatment step in image exposure of a photosensitive member;

제2도는 감광체에 있어서의 노광량과 표면전위와의 관계(광감쇠특성)를 실시예의 감광체 α, β 및 γ에 대해 나타내는 그래프,2 is a graph showing the relationship (light attenuation characteristics) between the exposure dose and the surface potential in the photoconductor with respect to the photoconductors α, β and γ of the embodiment;

제3도는 표면전위의 대수치와 노광량과의 도시로부터 고노광량영역근사직선과 저노광량영역근사직선과의 교차점을 구하는 방법을 나타내는 설명도,3 is an explanatory diagram showing a method of obtaining the intersection point of the high exposure area approximation straight line and the low exposure area approximation straight line from the illustration of the logarithm of the surface potential and the exposure amount;

제4도는 부대전토너와 비대전감광층과의 조합에 대해 현상슬리이브에의 인가전압과 비대전감광층에 전사(현상)된 토너층의 광학적농도(I.D)와의 관계(현상감도특성)을 도시한 그래프,4 shows the relationship between the applied voltage to the developing sleeve and the optical density (ID) of the toner layer transferred (developed) to the non-electrostatic photosensitive layer for the combination of the auxiliary toner and the non-electrostatic photosensitive layer (developing sensitivity characteristic). Graph,

제5도는 본 발명의 전자사진법에 사용되는 장치(복사기)의 1예를 나타내는 배치도.5 is a layout view showing one example of an apparatus (copier) used in the electrophotographic method of the present invention.

Claims (9)

감광체를 대전시키고 화상노광시켜서 정전잠상을 형성하고 이 정전잠상을 현상바이어스전압이 인가된 상태로 현상하는 것으로 이루어진 전자사진법에 있어서, 상기한 현상바이어스전압을 그 극성이 감광체의 대전극성과 동일하며 또한 광감쇠특성곡선의 고노광량영역근사곡선과 저노광량영역근사곡선과의 교차점에 상당하는 전위(EH)보다도 높은 전위로 설정하는 것을 특징으로 하는 전자사진법.In an electrophotographic method in which a photosensitive member is charged and an image is exposed to form an electrostatic latent image, and the electrostatic latent image is developed with a developing bias voltage applied thereto, the developing bias voltage has the same polarity as that of the counter electrode of the photosensitive member. And an electric potential higher than the potential (E H ) corresponding to the intersection of the high exposure range approximation curve and the low exposure range approximation curve of the light attenuation characteristic curve. 제1항에 있어서, 감광체가 유기감광체인 것을 특징으로 하는 전자사진법.The electrophotographic method according to claim 1, wherein the photoreceptor is an organophotoreceptor. 제1항에 있어서, 감광체가 전화수송물질을 포함하는 수지매질중에 전하발생물질을 분산시킨 단일분산층 형감광체인 것을 특징으로 하는 전자사진법.The electrophotographic method according to claim 1, wherein the photoconductor is a monodisperse layer type photoreceptor in which a charge generating material is dispersed in a resin medium containing a telephone transport material. 제1항에 있어서, 감광체가 하기식(1)The photosensitive member according to claim 1, wherein the photoconductor is represented by the following formula (1). (식중 I는 노광량(lux·sec)이며 V는 노광량 I에 있어서의 감광체표면전위의 절대치(V)이며 V0은 감광체표면초기 전위의 절대치(V)이면 A 및 C는 그 합이 1이라는 조건 하에, 각각 0.7 내지 1 및 0 내지 0.3의 수이며, B는 0.1 내지 1.5 lux-1·sec-1의 계수이며, D는 0.0l 내지 0.2 lux-1·sec-1의 계수이다.)로 표시되는 광감쇠특성을 갖는 유기감광체인 것을 특징으로 하는 전자사진법.(Wherein I is the exposure dose (luxsec), V is the absolute value of the photoreceptor surface potential at the exposure dose I, and V 0 is the absolute value (V) of the photoreceptor surface initial potential, the sum of A and C is 1 Is a number from 0.7 to 1 and 0 to 0.3, respectively, B is a coefficient of 0.1 to 1.5 lux −1 · sec −1 , and D is a coefficient of 0.01 to 0.2 lux −1 · sec −1 . An electrophotographic method comprising an organophotoreceptor having a light attenuation characteristic. 제4항에 있어서, 현상바이어스전위(EB)를 하기식(2)The developing bias potential EB according to claim 4, wherein 단,only, (식중 VL0.9는 0.9V0A를 나타내고 IL0.9는 식(1)에 있어서 VL0.9에 대응하는 노광량이며 VL0.7은 0.7V0A를 나타내고 IL0.9는 식(1)에 있어서 VL0.7에 대응하는 노광량이며 VS0.9는 0.9V0C를 나타내고 IS0.9는 식(1)에 있어서 VS0.9에 대응하는 노광량이며 VS0.8은 0.8V0C를 나타내고 IS0.8은 식(1)에 있어서 VS0.8에 대응하는 노광량이며, m은 1.5보다 큰수이다.)를 만족시키는 전압(Volt)으로 설정하는 것을 특징으로 하는 전자사진법.(VL 0.9 represents 0.9V 0 A, IL 0.9 corresponds to VL 0.9 in formula (1), VL 0.7 represents 0.7V 0 A in formula (1), and IL 0.9 corresponds to VL 0.7 in formula (1). Exposure amount is VS 0.9 represents 0.9V 0 C, IS 0.9 is exposure amount corresponding to VS 0.9 in formula (1), VS 0.8 represents 0.8V 0 C and IS 0.8 corresponds to VS 0.8 in formula (1) And an exposure dose, m being a number greater than 1.5.). 제5항에 있어서, 상기한 식(2)에 있어서 바이어스전원(EB)를 m의 값이 1.5 내지 4.0이 되도록 설정하는 것을 특징으로 하는 전자사진법.6. The electrophotographic method according to claim 5, wherein the bias power source (EB) is set in the above formula (2) so that the value of m is 1.5 to 4.0. 제1항 내지 제6항중의 어느 한 항에 있어서, 화상노광에 있어서 밝은 부에서의 노광량을 밝은 부에서의 잔류전위(ER)의 절대치가 바이어스전위(EB)의 절대치보다도 낮은 전위가되도륵 설정하는 것을 특징으로 하는 전자사진법.The exposure amount according to any one of claims 1 to 6 is set so that the exposure amount in the bright part in the image exposure is such that the absolute value of the residual potential ER in the bright part becomes lower than the absolute value of the bias potential EB. Electrophotographic method characterized in that. 제1항 내지 제7항 중의 어느 한 항에 있어시, 화상노광에 있어서, 밝은부에서의 노광량을 밝은부에서의 잔류전위(ER)가 식(7)8. The image exposure according to any one of claims 1 to 7, wherein in the image exposure, the residual potential ER in the bright portion is expressed by the expression (7). (식중 EB는 현상바이어스전위이며 ED0은 감광체와 현상제와의 조합의 현상감도특성에 관해서 흐림노동가 실질상 영(0)이되는 전위이며 n은 0.4 내지 2.5의 수이다.)를 만족시키도록 설정하는 것을 특징으로 하는 전자사진법.(Where EB is the development bias potential, ED 0 is the potential at which the blurring work becomes virtually zero with respect to the development sensitivity characteristic of the photosensitive member and the developer, and n is a number from 0.4 to 2.5.) Electrophotographic method characterized in that the setting. 제8항에 있어서, 식(7)의 n의 값이 0.5 내지 1.0의 값이되도록 밝은부에서의 노광량을 선정하는 것을 특징으로 하는 전자사진법.The electrophotographic method according to claim 8, wherein the exposure amount at the bright part is selected so that the value of n in the formula (7) is 0.5 to 1.0. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950036983A 1994-10-31 1995-10-25 Electrophotography using photoreceptors KR960015100A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP26779294 1994-10-31
JP94-267792 1994-10-31

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KR960015100A true KR960015100A (en) 1996-05-22

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EP (1) EP0709747B1 (en)
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CN (1) CN1131285A (en)
DE (1) DE69534892T2 (en)

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* Cited by examiner, † Cited by third party
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US6647230B2 (en) * 2000-09-05 2003-11-11 Canon Kabushiki Kaisha Image-forming apparatus for use with negatively-charged toner and featuring a negatively-chargeable image-bearing member, and process cartridge using same
US7251811B2 (en) * 2002-01-02 2007-07-31 Intel Corporation Controlling compatibility levels of binary translations between instruction set architectures

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* Cited by examiner, † Cited by third party
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JPS6050538A (en) * 1983-08-31 1985-03-20 Toyo Ink Mfg Co Ltd Electrophotographic sensitive body
US4879577A (en) * 1988-04-19 1989-11-07 International Business Machines Corporation Method and apparatus for controlling the electrostatic parameters of an electrophotographic reproduction device
JPH04204876A (en) * 1990-11-30 1992-07-27 Mita Ind Co Ltd Reversal development controller
JP3258681B2 (en) * 1991-09-06 2002-02-18 株式会社リコー Image forming device
JPH06208271A (en) * 1993-01-12 1994-07-26 Fuji Xerox Co Ltd Image forming device

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Publication number Publication date
EP0709747A3 (en) 1998-04-29
EP0709747A2 (en) 1996-05-01
DE69534892T2 (en) 2006-09-07
CN1131285A (en) 1996-09-18
DE69534892D1 (en) 2006-05-11
EP0709747B1 (en) 2006-03-22

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