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
Links
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 1
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Fax Reproducing Arrangements (AREA)
- Dot-Matrix Printers And Others (AREA)
- Laser Beam Printer (AREA)
- Mechanical Optical Scanning Systems (AREA)
Description
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)
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.
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)
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 |
-
1985
- 1985-01-29 JP JP1090985U patent/JPS61126667U/ja active Pending
Cited By (2)
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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