JPS61137916U - - Google Patents
Info
- Publication number
- JPS61137916U JPS61137916U JP2175385U JP2175385U JPS61137916U JP S61137916 U JPS61137916 U JP S61137916U JP 2175385 U JP2175385 U JP 2175385U JP 2175385 U JP2175385 U JP 2175385U JP S61137916 U JPS61137916 U JP S61137916U
- Authority
- JP
- Japan
- Prior art keywords
- deflection
- light source
- deflection element
- optical deflection
- control circuit
- 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 4
- 230000000694 effects Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
Landscapes
- Combination Of More Than One Step In Electrophotography (AREA)
- Dot-Matrix Printers And Others (AREA)
- Laser Beam Printer (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Description
第１図〜第５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６図は従来のレーザプリ
ンタの一例を示す構成図である。
１……光偏向素子、２１〜２ｍ，１２１〜１２
４……発振器、３１〜３ｍ……変調器、４……結
合器、５……パワーアンプ、６……レーザ光源、
７……ポリゴンミラー、８……感光ドラム、９…
…カツプリングレンズ、１０……コリメータレン
ズ、１１……イメージングレンズ、１２……偏向
制御回路、１２５……選択回路、１３……光源制
御回路、１４……スポツト位置検出器。
1 to 5 are block diagrams showing an embodiment of the laser printer of the present invention, and FIG. 6 is a block diagram showing an example of a conventional laser printer. 1... Light deflection element, 2 1 to 2 m , 12 1 to 12
4 ...Oscillator, 31-3m ...Modulator, 4...Coupler, 5...Power amplifier, 6...Laser light source ,
7...Polygon mirror, 8...Photosensitive drum, 9...
... Coupling lens, 10 ... Collimator lens, 11 ... Imaging lens, 12 ... Deflection control circuit, 12 5 ... Selection circuit, 13 ... Light source control circuit, 14 ... Spot position detector.
Claims (1)
射された光ビームを副走査方向に偏向させる光偏
向素子と、この光偏向素子に印加する駆動信号の
周波数を順次切り換え光偏向素子による光ビーム
の偏向角度を高速で変化させる偏向制御回路と、
この偏向動作と同期して前記レーザ光源のオンオ
フを制御する光源制御回路とを具備してなるレー
ザプリンタ。 (2) 光偏向素子はその偏向方向が主走査方向に
対して一定の傾きを持つように配置されてなる前
記実用新案登録請求の範囲第１項記載のレーザプ
リンタ。[Claims for Utility Model Registration] (1) An optical deflection element that uses an acousto-optic effect to deflect a light beam emitted from a laser light source in the sub-scanning direction, and a drive signal applied to the optical deflection element that changes the frequency. a deflection control circuit that changes the deflection angle of a light beam at high speed by a sequentially switching optical deflection element;
A laser printer comprising a light source control circuit that controls on/off of the laser light source in synchronization with the deflection operation. (2) The laser printer according to claim 1, wherein the optical deflection element is arranged so that its deflection direction has a constant inclination with respect to the main scanning direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2175385U JPS61137916U (en) | 1985-02-18 | 1985-02-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2175385U JPS61137916U (en) | 1985-02-18 | 1985-02-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61137916U true JPS61137916U (en) | 1986-08-27 |
Family
ID=30513435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2175385U Pending JPS61137916U (en) | 1985-02-18 | 1985-02-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61137916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1147906A2 (en) | 2000-04-21 | 2001-10-24 | Fuji Photo Film Co., Ltd. | Multi-beam exposure apparatus |
-
1985
- 1985-02-18 JP JP2175385U patent/JPS61137916U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1147906A2 (en) | 2000-04-21 | 2001-10-24 | Fuji Photo Film Co., Ltd. | Multi-beam exposure apparatus |
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