KR930012320A - Laser diode driving control device and method for laser beam printer - Google Patents
Laser diode driving control device and method for laser beam printer Download PDFInfo
- Publication number
- KR930012320A KR930012320A KR1019910024995A KR910024995A KR930012320A KR 930012320 A KR930012320 A KR 930012320A KR 1019910024995 A KR1019910024995 A KR 1019910024995A KR 910024995 A KR910024995 A KR 910024995A KR 930012320 A KR930012320 A KR 930012320A
- Authority
- KR
- South Korea
- Prior art keywords
- laser
- laser diode
- signal line
- central processing
- processing unit
- 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
- B41J2/44—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 single radiation source per colour, e.g. lighting beams or shutter arrangements
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Laser Beam Printer (AREA)
Abstract
본 발명은 레이져 빔 프린터의 레이져다이오우드 구동 제어장치 및 그 방법 관한 것으로 특히 레이쩐 스캐닝 메카니즘에서 회로적으로 이상이 발생했을 경우 레이져 다이오우드의 온/오프를 하드웨어 및 소프트웨어적으로 제어하여 레이져 파워가 한곳에 집중되는 것을 방지하도록 한것이다.The present invention relates to a laser diode driving control apparatus and method thereof for a laser beam printer. In particular, when a circuit abnormality occurs in the laser scanning mechanism, the laser power is controlled on and off by hardware and software to concentrate the laser power in one place. It is to prevent it.
종래의 레이져 빔 프린터의 레이져 다이오우드 구동( ) 신호라인과 폴리건 모터동기( ) 신호라인이 동시제어되게 접속되어 레이적 스캐팅 유니트(2)와 중앙처리장치(3)에 구비되어 있으므로 레이져 스캐닝 메카니즘에서 회로적으로 이상이 발생하는 경우 중앙처리장치(30의 폴리긴 모터 스타트( ) 신호라인에 의해 폴리건 모터가 구동되지 않는 상태에서도 레이져 다이오우드가 구동되는 경우가 발생하여 레이져 파워가 한곳에 집중되는 문제점이 초래되었다.Since the laser diode driving () signal line and the polygon motor synchronous () signal line of the conventional laser beam printer are connected at the same time and are provided in the radar scanning unit (2) and the central processing unit (3), the laser scanning mechanism If an abnormality occurs in the circuit, the laser diode may be driven even when the polygon motor is not driven by the polygin motor start () signal line of the central processing unit 30, causing the laser power to be concentrated in one place. It became.
본 발명은 이를 개선하기 위해 회로적으로 이상이 발생하는 경우 중앙처리장치(3)에서 소프트웨어적으로 처리 할 순 있도록 한것으로 이는 특히 폴리건모터 동기( )신호라인과 레이져 다이오우 구동( ) 신호라인과 레이져 다이오우인을 각각 분리하여 레이져 스캐닝 유니트(2)와 중앙처리장치 (3)에 구비시킴으로서 중터리장치 (3)에서의 포정 프로그램에 의해 레이저 방출 및 폴리건모터를 각각 제어하도록 한 것이다.In order to improve this problem, the present invention can be processed by the central processing unit 3 in the event of an abnormal circuit. In particular, the polygon motor synchronization () signal line and laser diode driving () signal line and laser The diouins are separated and provided in the laser scanning unit 2 and the central processing unit 3 so as to control the laser emission and the polygon motor by the catching program in the intermediate apparatus 3, respectively.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제3도는 본 발명에 의한 레이져 다이오우드 구동회로 블럭도,3 is a block diagram of a laser diode driving circuit according to the present invention;
제4도는 본 발명의 동작흐름도.4 is a flow chart of the present invention.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910024995A KR0169221B1 (en) | 1991-12-30 | 1991-12-30 | Device and method of laser diode driving control for laser beam printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910024995A KR0169221B1 (en) | 1991-12-30 | 1991-12-30 | Device and method of laser diode driving control for laser beam printer |
Publications (2)
Publication Number | Publication Date |
---|---|
KR930012320A true KR930012320A (en) | 1993-07-20 |
KR0169221B1 KR0169221B1 (en) | 1999-05-01 |
Family
ID=19326529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019910024995A KR0169221B1 (en) | 1991-12-30 | 1991-12-30 | Device and method of laser diode driving control for laser beam printer |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0169221B1 (en) |
-
1991
- 1991-12-30 KR KR1019910024995A patent/KR0169221B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR0169221B1 (en) | 1999-05-01 |
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Payment date: 20031008 Year of fee payment: 6 |
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