KR950003001A - Image Density Control Device of Laser Beam Printer - Google Patents
Image Density Control Device of Laser Beam Printer Download PDFInfo
- 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
Links
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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Laser Beam Printer (AREA)
- Mechanical Optical Scanning Systems (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
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)
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 |
Family
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) |
-
1993
- 1993-07-24 KR KR1019930014132A patent/KR0121174B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR0121174B1 (en) | 1997-11-10 |
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
LAPS | Lapse due to unpaid annual fee |