KR950003001A - Image Density Control Device of Laser Beam Printer - Google Patents

Image Density Control Device of Laser Beam Printer Download PDF

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Publication number
KR950003001A
KR950003001A KR1019930014132A KR930014132A KR950003001A KR 950003001 A KR950003001 A KR 950003001A KR 1019930014132 A KR1019930014132 A KR 1019930014132A KR 930014132 A KR930014132 A KR 930014132A KR 950003001 A KR950003001 A KR 950003001A
Authority
KR
South Korea
Prior art keywords
image
density
laser beam
beam printer
control device
Prior art date
Application number
KR1019930014132A
Other languages
Korean (ko)
Other versions
KR0121174B1 (en
Inventor
정태경
Original Assignee
이헌조
주식회사 금성사
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
Application filed by 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019930014132A priority Critical patent/KR0121174B1/en
Publication of KR950003001A publication Critical patent/KR950003001A/en
Application granted granted Critical
Publication of KR0121174B1 publication Critical patent/KR0121174B1/en

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Classifications

    • 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
    • B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
    • B41J2/447—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources
    • B41J2/455—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources using laser arrays, the laser array being smaller than the medium to be recorded
    • 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

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Laser Beam Printer (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

본 발명은 레이저빔 프린터의 화상 농도조절장치에 관한 것이다. 종래에는 레이저 광을 항시 일정한 세기로 드럼(6)의 표면에 도달시킴으로써 화상의 농도가 일정하게 나오는 단점이 있는 것으로, 따라서, 농도가 진한 경우, 농도를 낮출 수 없으며, 또한 농도가 여린 경우, 농도를 진하게 할 수 없으므로 사용자가 원하는 농도의 화상을 얻지 못하는 것이었다. 본 발명은 레이저빔 프린터의 광학계를 구성하는 실린더 렌즈(12)와 폴리콘 미러(13)의 사이에 화상의 농도조절을 위한 화상농도조절수단(V)을 설치하여, 화상의 농도 조절을 가능하게 함으로써 최적의 화상을 얻도록 한 것이다.The present invention relates to an image density adjusting apparatus of a laser beam printer. Conventionally, there is a disadvantage in that the density of the image is made constant by reaching the surface of the drum 6 at all times with a constant intensity of laser light. Therefore, when the density is high, the density cannot be lowered, and when the density is low, the density It could not be thickened, so the user did not get the image at the desired density. The present invention provides an image density adjusting means (V) for adjusting the density of an image between the cylinder lens 12 and the polycon mirror 13 constituting the optical system of the laser beam printer, thereby making it possible to adjust the density of the image. By doing so, an optimal image is obtained.

Description

레이저빔 프린터의 화상 농도조절장치Image Density Control Device of Laser Beam Printer

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

제 1 도는 일반적인 레이저빔 프린터의 광학계를 보인 구성도, 제 2 도는 일반적인 레이저빔 프린터의 광학계를 보인 부분 사시도, 제 3 도는 본 발명에 의한 레이저 빔 프린터의 화상 농도조절장치가 구비된 광학계의 전체 구성도, 제 4 도는 본 발명에 의한 레이저빔 프린터의 화상 농도조절장치를 보인 평면도, 제 5 도는 본 발명에 의한 레이저빔 프린터의 화상 농도조절장치를 보인 사시도, 제 6 도는 본 발생에 의한 레이저빔 프린터의 화상 농도조절장치를 구성하는 필터의 사시도.1 is a configuration diagram showing an optical system of a general laser beam printer, FIG. 2 is a partial perspective view showing an optical system of a general laser beam printer, and FIG. 3 is an overall configuration of an optical system having an image density control apparatus of a laser beam printer according to the present invention. Fig. 4 is a plan view showing the image density adjusting apparatus of the laser beam printer according to the present invention, Fig. 5 is a perspective view showing the image density adjusting apparatus of the laser beam printer according to the present invention, and Fig. 6 is a laser beam printer according to the present generation. Perspective view of the filter constituting the image density adjusting device.

Claims (3)

레이저빔 프린터의 광학계를 구성하는 실린더 렌즈(12)와 폴리콘 미러(13)의 사이에 화상의 농도 조절을 위한 화상농도조절수단(V)을 설치하여서 구성함을 특징으로 하는 레이저빔 프린터의 화상 농도조절장치.The image of the laser beam printer characterized in that the image density adjusting means (V) for adjusting the density of the image is provided between the cylinder lens 12 and the polycon mirror 13 constituting the optical system of the laser beam printer. Concentration control device. 제 1 항에 있어서, 상기 화상농도조절수단(V)은, 레이저 광축(S)에 대하여 중심축(21)이 일정거리(L)로 편심된 상태로 회전가능하도록 설치되는 필터회전판(22)과, 각각 다른 레이저광 투과율을 갖고 상기 필터회전판(22)의 광경로에 일정각도를 두고 고정되는 수개의 필터(23)와, 상기 필터회전판(22)을 회전시키는 구동수단으로 구성된 것을 특징으로 하는 레이저빔 프린터의 화상 농도조절장치.2. The filter concentration plate (22) according to claim 1, wherein the image concentration adjusting means (V) is provided so as to be rotatable in a state in which the central axis (21) is eccentric with respect to the laser optical axis (S). And a plurality of filters (23) each having a different laser light transmittance and fixed at an angle to the optical path of the filter rotating plate (22), and a driving means for rotating the filter rotating plate (22). Image density control device for beam printers. 제 2 항에 있어서, 상기 구동수단은 구동모터(24)가 포함된 것을 특징으로 하는 레이저빔 프린터의 화상 농도조절장치.The apparatus of claim 2, wherein the driving means comprises a driving motor (24). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930014132A 1993-07-24 1993-07-24 Laser-beam printer KR0121174B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930014132A KR0121174B1 (en) 1993-07-24 1993-07-24 Laser-beam printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930014132A KR0121174B1 (en) 1993-07-24 1993-07-24 Laser-beam printer

Publications (2)

Publication Number Publication Date
KR950003001A true KR950003001A (en) 1995-02-16
KR0121174B1 KR0121174B1 (en) 1997-11-10

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ID=19359984

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930014132A KR0121174B1 (en) 1993-07-24 1993-07-24 Laser-beam printer

Country Status (1)

Country Link
KR (1) KR0121174B1 (en)

Also Published As

Publication number Publication date
KR0121174B1 (en) 1997-11-10

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