KR930022241A - Image Forming Device - Google Patents

Image Forming Device Download PDF

Info

Publication number
KR930022241A
KR930022241A KR1019920005904A KR920005904A KR930022241A KR 930022241 A KR930022241 A KR 930022241A KR 1019920005904 A KR1019920005904 A KR 1019920005904A KR 920005904 A KR920005904 A KR 920005904A KR 930022241 A KR930022241 A KR 930022241A
Authority
KR
South Korea
Prior art keywords
laser beam
laser
printing speed
control circuit
scanning direction
Prior art date
Application number
KR1019920005904A
Other languages
Korean (ko)
Other versions
KR940009717B1 (en
Inventor
가즈히꼬 다까하시
Original Assignee
미야하라 아끼라
후지제록스 가부시끼가이샤
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 미야하라 아끼라, 후지제록스 가부시끼가이샤 filed Critical 미야하라 아끼라
Priority to KR1019920005904A priority Critical patent/KR940009717B1/en
Publication of KR930022241A publication Critical patent/KR930022241A/en
Application granted granted Critical
Publication of KR940009717B1 publication Critical patent/KR940009717B1/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/12—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers
    • 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
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5008—Driving control for rotary photosensitive medium, e.g. speed control, stop position control

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Dot-Matrix Printers And Others (AREA)

Abstract

레이저 프린터등의 화상형성장치에 있어서 회전다면체의 회전속도를 바꾸지 않고 주주사밀도나 인자속도를 변경가능하게 하는 것을 목적으로 하고 레이저 발진기(11)로 부터 변조기(12)를 거쳐서 출력된 레이저빔(13)은 플리곤미러(102)의 각면에서 반사, 편향되고 감광체드럼(106)의 주주사방향(M)으로 반복하여 주사된다. 레이저빔(13)은 각 주주사의 개시전의 빔위치(16)에서 빔검출기(22)로 입사되고 빔검지신호(24)가 출력된다. 수평동기신호제어회로(23)는 인자속도제어회로(26) 및 주사밀도제어회로(28)로부터 주어진 인자속도정보(27)나 주사밀도정보(29)에 따라서 빔검지신호(24)를 솎아냄으로써 이 펄스간격을 소정의 값으로 변경하여 수평동기 신호(31)로서 출력한다. 화상정보처리장치(126)는 수평동기신호(31)의 입력마다에 1라인분의 화상정보(38)를 레이저 제어장치(15)로 공급한다.In an image forming apparatus such as a laser printer, a laser beam 13 outputted from the laser oscillator 11 via the modulator 12 to change the main scanning density or the printing speed without changing the rotational speed of the rotating polyhedron. ) Is reflected and deflected on each side of the plygon mirror 102 and repeatedly scanned in the main scanning direction M of the photosensitive drum 106. The laser beam 13 is incident on the beam detector 22 at the beam position 16 before the start of each main scan, and the beam detection signal 24 is output. The horizontal synchronous signal control circuit 23 subtracts the beam detection signal 24 in accordance with the printing speed information 27 or the scanning density information 29 given from the printing speed control circuit 26 and the scanning density control circuit 28. The pulse interval is changed to a predetermined value and output as the horizontal synchronous signal 31. The image information processing device 126 supplies the laser control device 15 with one line of image information 38 for each input of the horizontal synchronization signal 31.

Description

화상형성장치Image Forming Device

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

제1도는 본 발명의 일실시예의 화상형성장치의 개략구성도.1 is a schematic structural diagram of an image forming apparatus according to one embodiment of the present invention;

제2도는 제1실시예에 있어서의 화상형성장치의 요부를 나타낸 블럭도.Fig. 2 is a block diagram showing the main parts of the image forming apparatus in the first embodiment.

제3도는 수평동기신호와 화상정보와의 관계를 나타낸 타이밍도.3 is a timing diagram showing a relationship between a horizontal synchronization signal and image information.

Claims (1)

일정방향으로 이동하는 감광체, 화신호에 준하여 변조된 레이저빔을 출력하는 레이저빔 출력수단, 일정속도로 회전하면서 각면에서 상기 레이저빔을 반사하여 상기 감광체위에 그 이동방향인 부주사방향과 다른 주주사방향으로 반복하여 조사시키는 회전다면체, 부주사방향의 주사밀도의 변경요구 및 인자속도의 변경요구의 적어도 한쪽에 응답하여 레이저빔의 반사에 사용되는 상기 회전다면체의 면의 간격을 결정하는 면간격 결정수단 및 상기 결정수단에 의해서 사용이 결정된 소정간격의 면에 동기되어 1주사분씩 화신호를 공급하는 화신호 공급수단을 구비한 것을 특징으로 하는 화상형성장치.A photosensitive member moving in a predetermined direction, a laser beam output means for outputting a laser beam modulated in accordance with a speech signal, and a main scanning direction different from the sub-scanning direction which is the moving direction on the photosensitive member by reflecting the laser beam on each surface while rotating at a constant speed Means for determining the spacing of the surfaces of the rotating polyhedron used for reflection of the laser beam in response to at least one of the rotating polyhedron to be irradiated repeatedly, and the request for changing the scanning density in the sub-scanning direction and changing the printing speed. And picture signal supply means for supplying picture signals one by one in synchronization with a plane of a predetermined interval determined to be used by said determining means. 　※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920005904A 1992-04-09 1992-04-09 Image forming apparatus KR940009717B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920005904A KR940009717B1 (en) 1992-04-09 1992-04-09 Image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920005904A KR940009717B1 (en) 1992-04-09 1992-04-09 Image forming apparatus

Publications (2)

Publication Number Publication Date
KR930022241A true KR930022241A (en) 1993-11-23
KR940009717B1 KR940009717B1 (en) 1994-10-17

Family

ID=19331559

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920005904A KR940009717B1 (en) 1992-04-09 1992-04-09 Image forming apparatus

Country Status (1)

Country Link
KR (1) KR940009717B1 (en)

Also Published As

Publication number Publication date
KR940009717B1 (en) 1994-10-17

Similar Documents

Publication Publication Date Title
US3848087A (en) Optical scanner control system
US4012585A (en) Input and output flying spot scanning system
US5138479A (en) Light beam scanning apparatus and method of detecting a variation of a scanning speed of a light beam
CA2067887C (en) Raster output scanner with process direction spot position control
US4518998A (en) Method and apparatus for producing a time advanced output pulse train from an input pulse train
US5321432A (en) Image forming apparatus with resolution control
US5436728A (en) Light beam scanning system with photodetector oriented to prevent unwanted reflections
US4761660A (en) Laser scanning apparatus using a fan style grating plate
KR930022241A (en) Image Forming Device
US5844592A (en) Optical image forming device having a plurality of drawing beams and a monitoring beam
US4302096A (en) Graphic forms overlay apparatus
JPH02266757A (en) Exposing method for laser beam printer
JPH0580191B2 (en)
KR940011195A (en) Laser scanning device of laser printer
JPS5691211A (en) Beam scanner
JPH03213010A (en) Clock generator
KR960003103Y1 (en) Exposure device of hologram laser printer
JP3207988B2 (en) Image forming device
JPS59182417A (en) Luminous flux scanning driving device
JPS63147645A (en) Output control apparatus of semiconductor laser
JPH0329915A (en) Optical scanner
JPH09277594A (en) Image forming device
JPH03206477A (en) Horizontal synchronous detecting device
KR880002029A (en) Scan line length nonuniformity correction device by mirror distortion of rotating multifaceted mirror
JPH09197307A (en) Laser printer

Legal Events

Date Code Title Description
A201 Request for examination
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19920409

PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 19920409

Comment text: Request for Examination of Application

PG1501 Laying open of application
G160 Decision to publish patent application
PG1605 Publication of application before grant of patent

Comment text: Decision on Publication of Application

Patent event code: PG16051S01I

Patent event date: 19940916

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 19941229

GRNT Written decision to grant
PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 19950213

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 19950213

End annual number: 3

Start annual number: 1

PR1001 Payment of annual fee

Payment date: 19970830

Start annual number: 4

End annual number: 4

PR1001 Payment of annual fee

Payment date: 19981001

Start annual number: 5

End annual number: 5

PR1001 Payment of annual fee

Payment date: 19991006

Start annual number: 6

End annual number: 6

PR1001 Payment of annual fee

Payment date: 20001011

Start annual number: 7

End annual number: 7

PR1001 Payment of annual fee

Payment date: 20011010

Start annual number: 8

End annual number: 8

PR1001 Payment of annual fee

Payment date: 20021008

Start annual number: 9

End annual number: 9

PR1001 Payment of annual fee

Payment date: 20031013

Start annual number: 10

End annual number: 10

PR1001 Payment of annual fee

Payment date: 20041012

Start annual number: 11

End annual number: 11

PR1001 Payment of annual fee

Payment date: 20051011

Start annual number: 12

End annual number: 12

PR1001 Payment of annual fee

Payment date: 20061011

Start annual number: 13

End annual number: 13

PR1001 Payment of annual fee

Payment date: 20071010

Start annual number: 14

End annual number: 14

PR1001 Payment of annual fee

Payment date: 20081010

Start annual number: 15

End annual number: 15

PR1001 Payment of annual fee

Payment date: 20091009

Start annual number: 16

End annual number: 16

PR1001 Payment of annual fee

Payment date: 20101012

Start annual number: 17

End annual number: 17

FPAY Annual fee payment

Payment date: 20110920

Year of fee payment: 18

PR1001 Payment of annual fee

Payment date: 20110920

Start annual number: 18

End annual number: 18

EXPY Expiration of term
PC1801 Expiration of term