JP3060508B2 - Laser light scanning device - Google Patents
Laser light scanning deviceInfo
- Publication number
- JP3060508B2 JP3060508B2 JP2240842A JP24084290A JP3060508B2 JP 3060508 B2 JP3060508 B2 JP 3060508B2 JP 2240842 A JP2240842 A JP 2240842A JP 24084290 A JP24084290 A JP 24084290A JP 3060508 B2 JP3060508 B2 JP 3060508B2
- Authority
- JP
- Japan
- Prior art keywords
- scanning device
- laser beam
- laser light
- base
- scanning line
- 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.)
- Expired - Fee Related
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
- B41J2/47—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 the combination of scanning and modulation of light
- B41J2/471—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 the combination of scanning and modulation of light using dot sequential main scanning by means of a light deflector, e.g. a rotating polygonal mirror
Landscapes
- Laser Beam Printer (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Facsimile Scanning Arrangements (AREA)
- Dot-Matrix Printers And Others (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はレーザ光を用いて画像，文字などの情報を表
示，記録，読みとるための光学装置、例えばレーザプリ
ンタ，レーザ写植機，タイプセッタ等に使用するレーザ
光走査装置に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for an optical device for displaying, recording, and reading information such as images and characters using a laser beam, such as a laser printer, a laser typesetting machine, and a type setter. To a laser beam scanning device.
従来の技術 従来の一般的な技術を第５図を参照しながら説明す
る。レーザ光源１より出射されたレーザ光はコリメータ
レンズ２で平行光となり、さらにレンズ３で形成され、
回転多面鏡により集光レンズ５を通過して感光紙７の面
上の印字走査線Ｐに集光される。そして、レーザ光源
１、コリメータレンズ２、レンズ３、回転多面鏡４、集
光レンズ５はベース６上に配置されている。2. Description of the Related Art A conventional general technique will be described with reference to FIG. The laser light emitted from the laser light source 1 becomes parallel light by the collimator lens 2 and is further formed by the lens 3.
The light passes through the condenser lens 5 and is condensed on the print scanning line P on the surface of the photosensitive paper 7 by the rotating polygon mirror. The laser light source 1, collimator lens 2, lens 3, rotary polygon mirror 4, and condenser lens 5 are arranged on a base 6.
発明が解決しようとする課題 このような従来のレーザ光走査装置では、第６図に示
すように回転多面鏡４の軸倒れや、ベース６の加工精度
不良により、多面鏡の印字走査線Ｐに平行であるべき多
面鏡４の軸ｘと、集光レンズ５の軸ｌとが印字走査線Ｐ
に対して傾いて配置された場合、あるいはベース６その
ものの平行軸ｍが印字走査線Ｐに対して傾いて配置され
た場合に、走査線は第５図Ｑのように傾いて印字され
る。また第７図に示すように、集光レンズ５の平行軸
ｌ、あるいはベース６の平行軸ｍが印字走査線Ｐに対し
て傾いて配置されると、レーザスポット間隔a,b,c,d,e,
fは不均等に印字されるという問題があった。Problems to be Solved by the Invention In such a conventional laser beam scanning device, as shown in FIG. 6, due to the tilting of the rotary polygonal mirror 4 and the poor processing accuracy of the base 6, the scanning scanning line P of the polygonal mirror is changed. The axis x of the polygon mirror 4 to be parallel and the axis l of the condenser lens 5 are aligned with the print scanning line P.
When the base 6 is arranged at an angle to the print scanning line P, the scanning line is printed at an angle as shown in FIG. 5Q. Further, as shown in FIG. 7, when the parallel axis l of the condenser lens 5 or the parallel axis m of the base 6 is arranged to be inclined with respect to the printing scanning line P, the laser spot intervals a, b, c, d , e,
There was a problem that f was printed unevenly.
本発明は上記問題点を解決するもので、走査線の傾き
がなく、スポット間隔が均等な高品質のレーザ光走査装
置を提供することを目的としている。SUMMARY OF THE INVENTION An object of the present invention is to provide a high-quality laser beam scanning apparatus which solves the above-described problem and has no scanning line inclination and uniform spot intervals.
課題を解決するための手段 本発明は上記目的を達成するために、感光体の所定印
字位置に対するレーザ光走査の全方位調整機構を備えて
なるもので、その機構の操作は装置の外部で行えるよう
に配してなるものである。Means for Solving the Problems In order to achieve the above object, the present invention comprises an omnidirectional adjustment mechanism for laser beam scanning with respect to a predetermined printing position on a photoconductor, and the operation of the mechanism can be performed outside the apparatus. It is arranged in such a way.
作用 本発明は上記した構成により、全方位の傾き補正機構
を配してあるので、レーザ光走査線傾きがなく、しかも
レーザスポット間隔が均等に配置できるものである。Operation In the present invention, the omnidirectional tilt correction mechanism is provided with the above-described configuration, so that there is no laser beam scanning line tilt and laser spot intervals can be evenly arranged.
実施例 以下、本発明の一実施例について第１図〜第４図を参
照しながら説明する。図において、１はレーザ光源、２
はコリメータレンズ、３はレーザ光を成形するレンズ、
４は回転多面鏡、５は集光レンズ、６はこれらの部材が
配置されているベースである。ベース６は２本の支柱12
に支えられている。支柱12の端部の片側はケース22の一
部である側板９の穴に挿入され、今１つの端部はケース
22の一部である側板８に機構Ｓ部によって調節可能に保
持される。Embodiment An embodiment of the present invention will be described below with reference to FIGS. In the figure, 1 is a laser light source, 2
Is a collimator lens, 3 is a lens for shaping laser light,
4 is a rotary polygon mirror, 5 is a condenser lens, and 6 is a base on which these members are arranged. Base 6 has two columns 12
It is supported by. One end of the end of the column 12 is inserted into a hole of the side plate 9 which is a part of the case 22, and one end is
The side plate 8 which is a part of the unit 22 is adjustably held by the mechanism S.
第２図は機構Ｓ部の断面図である。部材10はねじ13で
側板８に固定されている。支柱12は部材10を貫通したね
じ14で固定される。支柱12はねじ止めにしてあるので、
ねじ14を回すことによって支柱12を上下に移動できる。
最適位置にねじ14で調整した後、支柱12は側板８にねじ
15で固定される。側板８にはこの機構Ｓ部が前後２箇所
設置されており、この２箇所の調整によって、傾きの矯
正が可能となる。FIG. 2 is a sectional view of the mechanism S part. The member 10 is fixed to the side plate 8 with screws 13. The column 12 is fixed with a screw 14 penetrating the member 10. Since the pillar 12 is screwed,
By turning the screw 14, the column 12 can be moved up and down.
After adjusting to the optimum position with screws 14, the support 12 is screwed to the side plate 8.
Fixed at 15. The mechanism S portion is installed at two front and rear portions on the side plate 8, and the inclination can be corrected by adjusting the two portions.
またベース６は機構Ｔ部で支柱12に回動可能に保持さ
れる。第３図は機構Ｔ部の横部分断面図、第４図は機構
Ｔ部の上面部分断面図である。図においてベース６はピ
ン17を介して支柱12に取り付けられており、ベース６の
左右に固定配置された部材11にねじこまれたセットねじ
16を回し前後に移動させることによって、ピン17を支点
にしてベース６を矢印ＡまたはＢ方向に回動させること
ができる。Further, the base 6 is rotatably held by the support 12 at the mechanism T. FIG. 3 is a lateral partial sectional view of the mechanism T, and FIG. 4 is a top partial sectional view of the mechanism T. In the figure, a base 6 is attached to a support 12 via a pin 17, and a set screw screwed into a member 11 fixedly arranged on the left and right sides of the base 6.
By rotating the base 16 back and forth, the base 6 can be rotated in the direction of the arrow A or B with the pin 17 as a fulcrum.
このように本発明の実施例のレーザ光走査装置によれ
ば、機構Ｓ部とＴ部を設けてあるので感光紙の所定印字
位置に対するレーザ光の全方位の傾き補正が外部からの
調整によってできる。As described above, according to the laser beam scanning device of the embodiment of the present invention, since the mechanism S and the T portion are provided, the omnidirectional inclination correction of the laser beam with respect to the predetermined printing position on the photosensitive paper can be corrected by external adjustment. .
発明の効果 以上の実施例から明らかなように、本発明によれば機
構Ｓ部とＴ部とを設けているので、感光紙に対するレー
ザ光走査線傾きが無く、しかもレーザスポット間隔が均
等なレーザ光走査装置をできる他、装置内部の感光体、
光学ユニットを汚損又は破損せずに、レーザ光走査線の
傾きを補正することができるという効果を奏する。As is clear from the above embodiments, according to the present invention, since the mechanism S and the T are provided, there is no inclination of the laser beam scanning line with respect to the photosensitive paper and the laser spot interval is uniform. In addition to the optical scanning device, the photoconductor inside the device,
There is an effect that the inclination of the laser beam scanning line can be corrected without soiling or damaging the optical unit.
第１図は本発明の一実施例のレーザ光走査装置斜視図、
第２図は同機構Ｓ部の断面図、第３図は同機構Ｔ部の横
部分断面図、第４図は同機構Ｔ部の上面部分断面図、第
５図は従来のレーザ光走査装置の斜視図、第６図は印字
走査線傾きの説明図、第７図はレーザスポット間隔の不
均等原因の説明図である。 ７……感光紙、20……機構Ｓ部、21……機構Ｔ部。FIG. 1 is a perspective view of a laser beam scanning device according to one embodiment of the present invention,
2 is a sectional view of the mechanism S, FIG. 3 is a lateral partial sectional view of the mechanism T, FIG. 4 is a top partial sectional view of the mechanism T, and FIG. 5 is a conventional laser beam scanning device. FIG. 6 is an explanatory view of the inclination of the print scanning line, and FIG. 7 is an explanatory view of the cause of the uneven laser spot interval. 7 photosensitive paper, 20 mechanism S section, 21 mechanism T section.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H04N 1/04 - 1/207 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 7 , DB name) H04N 1/04-1/207
Claims (1)
ットと、 前記光学ユニットの姿勢を制御可能な調整手段と、 前記光学ユニット等を収めた筐体とから構成され、 前記調整手段が前記筐体の外部から操作可能に構成され
ていることを特徴とするレーザ光走査装置。1. An optical unit capable of forming image information on an image carrier, an adjusting unit capable of controlling a posture of the optical unit, and a housing containing the optical unit and the like, wherein the adjusting unit is A laser beam scanning device characterized by being operable from outside the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2240842A JP3060508B2 (en) | 1990-09-10 | 1990-09-10 | Laser light scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2240842A JP3060508B2 (en) | 1990-09-10 | 1990-09-10 | Laser light scanning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04119754A JPH04119754A (en) | 1992-04-21 |
| JP3060508B2 true JP3060508B2 (en) | 2000-07-10 |
Family
ID=17065517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2240842A Expired - Fee Related JP3060508B2 (en) | 1990-09-10 | 1990-09-10 | Laser light scanning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3060508B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101990238B1 (en) * | 2017-03-01 | 2019-06-17 | 니혼앗짜쿠단시세이소 가부시키가이샤 | Connector |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004291624A (en) * | 2003-03-13 | 2004-10-21 | Matsushita Electric Ind Co Ltd | Support structure of light scanner and image forming forming apparatus |
-
1990
- 1990-09-10 JP JP2240842A patent/JP3060508B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101990238B1 (en) * | 2017-03-01 | 2019-06-17 | 니혼앗짜쿠단시세이소 가부시키가이샤 | Connector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04119754A (en) | 1992-04-21 |
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Legal Events
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|---|---|---|---|
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| LAPS | Cancellation because of no payment of annual fees |