KR930002901A - Electrophotographic Image Forming Device - Google Patents

Electrophotographic Image Forming Device Download PDF

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Publication number
KR930002901A
KR930002901A KR1019910013263A KR910013263A KR930002901A KR 930002901 A KR930002901 A KR 930002901A KR 1019910013263 A KR1019910013263 A KR 1019910013263A KR 910013263 A KR910013263 A KR 910013263A KR 930002901 A KR930002901 A KR 930002901A
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KR
South Korea
Prior art keywords
image forming
electrophotographic image
liquid crystal
crystal element
forming apparatus
Prior art date
Application number
KR1019910013263A
Other languages
Korean (ko)
Other versions
KR100189853B1 (en
Inventor
손상석
민경철
Original Assignee
정용문
삼성전자 주식회사
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Publication date
Application filed by 정용문, 삼성전자 주식회사 filed Critical 정용문
Priority to KR1019910013263A priority Critical patent/KR100189853B1/en
Publication of KR930002901A publication Critical patent/KR930002901A/en
Application granted granted Critical
Publication of KR100189853B1 publication Critical patent/KR100189853B1/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
    • G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Liquid Crystal (AREA)
  • Fax Reproducing Arrangements (AREA)

Abstract

내용 없음.No content.

Description

전자사진 화상형성장치Electrophotographic Image Forming Device

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

제5도는 본 발명에 의한 전자사진 화상형성장치의 광학배치도,5 is an optical arrangement of the electrophotographic image forming apparatus according to the present invention;

제6도는 본 발명의 펄스폭 변조법에 의한 제조 표현방법을 설명하기 위한 격자형 액정구조를 나타낸 도면,6 is a diagram showing a lattice type liquid crystal structure for explaining a manufacturing expression method by the pulse width modulation method of the present invention;

제7도의 (가)(나)는 본 발명의 면적계조법에 의한 계조표현방법을 설명하기 위한 매트릭스형 액정구조와 신호주기를 나타낸 도면.Fig. 7A is a diagram showing a matrix type liquid crystal structure and a signal period for explaining the gray scale expression method by the area gray scale method of the present invention.

Claims (4)

광원과, 이 광원으로부터 출력된 광속을 이동주사하기 위한 광주사수단을 포함하여, 감광체에 화상을 형성하는 전자사진 화상형성장치에 있어서, 상기 광원과 상기 광주사수단 사이의 광경로상에 복수영역으로 구분된 액정소자를 구비하여, 이 액정소자의 영역을 선택적으로 제어함으로써 그 광경로로 진행하는 광속을 부분적으로 투과 또는 차단시키도록 구성하여 된 것을 특징으로 하는 전자사진 화상형성장치.An electrophotographic image forming apparatus for forming an image on a photosensitive member, comprising a light source and light scanning means for moving scanning the light beam output from the light source, wherein the plurality of areas are formed on an optical path between the light source and the light scanning means. An electrophotographic image forming apparatus comprising: a liquid crystal element divided by: and configured to selectively transmit or block a light beam traveling in the optical path by selectively controlling an area of the liquid crystal element. 제1항에 있어서, 상기 액정소자의 투과율을 조절함으로써 그 액정소자를 투과하는 강도가 변화하도록 제어되는 것을 특징으로 하는 전자사진 화상형성장치.An electrophotographic image forming apparatus according to claim 1, wherein the intensity of transmission through the liquid crystal element is controlled by changing the transmittance of the liquid crystal element. 제1항에 있어서, 상기 액정소자의 복수의 영역이 상기 광속에 대해 광부주사 방향으로 구분하여 선택투과 또는 차단할 수 있도록 세로방향의 격자 모양으로 배치된 것을 특징으로 하는 전자사진 화상형성장치.An electrophotographic image forming apparatus according to claim 1, wherein a plurality of regions of the liquid crystal element are arranged in a longitudinal lattice shape so as to be selectively transmitted or blocked in the light beam scanning direction with respect to the luminous flux. 제1항에 있어서, 상기 액정소자의 복수의 영역이 상기 광속에 대하여 광주사방향 및 광부주사 방향으로 구분하여 선택 투과 또는 차단할 수 있도록 매트릭스 모양으로 배치된 것을 특징으로 하는 전자사진 화상형성장치.The electrophotographic image forming apparatus of claim 1, wherein the plurality of regions of the liquid crystal element are arranged in a matrix so as to be selectively transmitted or blocked by being divided into a light scanning direction and a light scanning direction with respect to the luminous flux. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910013263A 1991-07-31 1991-07-31 An image forming device KR100189853B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910013263A KR100189853B1 (en) 1991-07-31 1991-07-31 An image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910013263A KR100189853B1 (en) 1991-07-31 1991-07-31 An image forming device

Publications (2)

Publication Number Publication Date
KR930002901A true KR930002901A (en) 1993-02-23
KR100189853B1 KR100189853B1 (en) 1999-06-01

Family

ID=19318107

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910013263A KR100189853B1 (en) 1991-07-31 1991-07-31 An image forming device

Country Status (1)

Country Link
KR (1) KR100189853B1 (en)

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Publication number Publication date
KR100189853B1 (en) 1999-06-01

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