JPS61126667U - - Google Patents

Info

Publication number
JPS61126667U
JPS61126667U JP1090985U JP1090985U JPS61126667U JP S61126667 U JPS61126667 U JP S61126667U JP 1090985 U JP1090985 U JP 1090985U JP 1090985 U JP1090985 U JP 1090985U JP S61126667 U JPS61126667 U JP S61126667U
Authority
JP
Japan
Prior art keywords
delay circuit
laser
buffer memory
laser light
mirror
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP1090985U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP1090985U priority Critical patent/JPS61126667U/ja
Publication of JPS61126667U publication Critical patent/JPS61126667U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Dot-Matrix Printers And Others (AREA)
  • Laser Beam Printer (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Fax Reproducing Arrangements (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案のレーザプリンタの一実施例を
示す構成図、第２図はその動作状態を示す波形図
、第３図〜第５図は従来のマルチビーム形のレー
ザプリンタの一例を示す構成図である。 １１〜１４……レーザ光源、２……ピラミダル
ミラー、３……結像レンズ、４……ポリゴンミラ
ー、５……感光ドラム、６……スポツト位置検出
器、７……バツフアメモリ、８……カウンタ、９
，１３……クロツク発生回路、１０……ゲート回
路、１１……光源パワー補正回路、１２１〜１２
３……シフトレジスタ、１４１〜１４４……駆動
回路。 Fig. 1 is a configuration diagram showing an embodiment of the laser printer of the present invention, Fig. 2 is a waveform diagram showing its operating state, and Figs. 3 to 5 show an example of a conventional multi-beam laser printer. FIG. 1 1 to 1 4 ... laser light source, 2 ... pyramidal mirror, 3 ... imaging lens, 4 ... polygon mirror, 5 ... photosensitive drum, 6 ... spot position detector, 7 ... buffer memory, 8 ... ...Counter, 9
, 13... Clock generation circuit, 10... Gate circuit, 11... Light source power correction circuit, 12 1 to 12
3 ...Shift register, 141 to 144 ...Drive circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] それぞれ独立したレーザ光源より出射された複
数の光ビームをピラミダルミラーの如き凸面状の
反射面を有する反射鏡を使用して同一方向に反射
し各光ビームの光軸を感光ドラム上に投影するレ
ーザビームスポツトの間隔程度に近接させたうえ
でポリゴンミラーに入射させるようにしたレーザ
プリンタにおいて、画像情報を一時記憶するバツ
フアメモリと、このバツフアメモリの後の各信号
ライン中に挿入された遅延回路と、この遅延回路
を介して得られる画像信号に応じて各レーザ光源
を駆動する駆動回路とを具備し、前記遅延回路の
遅延量を変化させることにより各レーザ光源を駆
動するタイミングを調節するようにしてなるレー
ザプリンタ。 A laser that reflects multiple light beams emitted from independent laser light sources in the same direction using a reflecting mirror with a convex reflecting surface, such as a pyramidal mirror, and projects the optical axis of each light beam onto a photosensitive drum. A laser printer in which the beams are placed close to each other at the same distance as the beam spot and then incident on a polygon mirror has a buffer memory for temporarily storing image information, a delay circuit inserted into each signal line after the buffer memory, and a delay circuit inserted into each signal line after the buffer memory. and a drive circuit that drives each laser light source according to an image signal obtained through a delay circuit, and the timing of driving each laser light source is adjusted by changing the amount of delay of the delay circuit. laser printer.
JP1090985U 1985-01-29 1985-01-29 Pending JPS61126667U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1090985U JPS61126667U (en) 1985-01-29 1985-01-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1090985U JPS61126667U (en) 1985-01-29 1985-01-29

Publications (1)

Publication Number Publication Date
JPS61126667U true JPS61126667U (en) 1986-08-08

Family

ID=30492529

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1090985U Pending JPS61126667U (en) 1985-01-29 1985-01-29

Country Status (1)

Country Link
JP (1) JPS61126667U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992021069A1 (en) * 1991-05-14 1992-11-26 Seiko Epson Corporation Image-forming device
JPH07250209A (en) * 1994-03-14 1995-09-26 Ricoh Co Ltd Optical recorder using semiconductor laser array

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992021069A1 (en) * 1991-05-14 1992-11-26 Seiko Epson Corporation Image-forming device
JPH07250209A (en) * 1994-03-14 1995-09-26 Ricoh Co Ltd Optical recorder using semiconductor laser array

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