JPH01115755U - - Google Patents
Info
- Publication number
- JPH01115755U JPH01115755U JP1179488U JP1179488U JPH01115755U JP H01115755 U JPH01115755 U JP H01115755U JP 1179488 U JP1179488 U JP 1179488U JP 1179488 U JP1179488 U JP 1179488U JP H01115755 U JPH01115755 U JP H01115755U
- Authority
- JP
- Japan
- Prior art keywords
- optical member
- drive pulley
- driving device
- forming apparatus
- image forming
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 20
- 108091008695 photoreceptors Proteins 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
Description
第1図は本考案の光学部材駆動装置の一例を示
す要部平面図、第2図は本考案の光学部材駆動装
置を有する電子写真複写機内の構造図、第3図は
本考案の光学部材駆動装置の斜視図、第4図はそ
の動作説明のための要部平面図、第5図および第
6図はそれぞれ従来の光学部材駆動装置の一例を
略示する斜視図である。
21……第1光学部材、22……第2光学部材
、22d,22e……移動プーリ、31,32…
…ワイヤ、41,42……駆動プーリ、43……
駆動軸、44……モータ。
FIG. 1 is a plan view of essential parts showing an example of the optical member driving device of the present invention, FIG. 2 is a structural diagram inside an electrophotographic copying machine having the optical member driving device of the present invention, and FIG. 3 is an optical member of the present invention. FIG. 4 is a perspective view of a driving device, FIG. 4 is a plan view of a main part for explaining its operation, and FIGS. 5 and 6 are perspective views each schematically showing an example of a conventional optical member driving device. 21...First optical member, 22...Second optical member, 22d, 22e...Moving pulley, 31, 32...
...Wire, 41, 42...Drive pulley, 43...
Drive shaft, 44...motor.
Claims (1)
体上に露光すべく、光学部材を所定方向へ走査す
る画像形成装置の光学部材駆動装置であり、 それぞれの軸心が露光走査方向と直交するよう
に配設され一体的に正逆回転する一対の駆動プー
リと、 各駆動プーリを正逆回転させる駆動手段と、 各駆動プーリにそれぞれ軸方向に所定の長さに
わたつて螺旋状に巻回されており、各駆動プーリ
から延出する部分が、露光走査方向とは直交する
ように配設された光学部材の各側部に係止されて
いるワイヤと、を具備し、 各ワイヤは、該光学部材の端部が各駆動プーリ
に最も接近した場合には、該光学部材と各駆動プ
ーリとの間で露光走査方向とは平行になり、該光
学部材が各駆動プーリから離れるに連れて、各駆
動プーリ上を相互に離れるように繰り出されるべ
く各駆動プーリにそれぞれ巻回されている事を特
徴とする、 画像形成装置の光学部材駆動装置。 2 前記光学部材は、光源および反射鏡を有する
第1光学部材と一対の反射鏡を有する第2光学部
材とを具備する請求項1に記載の画像形成装置の
光学部材駆動装置。 3 前記第1光学部材の移動速度が前記第2光学
部材の移動速度の2倍である請求項2に記載の画
像形成装置の光学部材駆動装置。[Scope of Claim for Utility Model Registration] 1. An optical member driving device of an image forming apparatus that scans an optical member in a predetermined direction in order to expose an image of a document placed on a document mounting table onto a photoreceptor, each of which a pair of drive pulleys arranged such that their axes are perpendicular to the exposure scanning direction and rotate integrally in forward and reverse directions; a drive means for rotating each drive pulley in forward and reverse directions; A wire that is spirally wound over its length, and the portion extending from each drive pulley is latched to each side of an optical member disposed perpendicular to the exposure scanning direction. and, each wire is parallel to the exposure scanning direction between the optical member and each drive pulley when the end of the optical member is closest to each drive pulley; An optical member driving device for an image forming apparatus, characterized in that the optical member is wound around each drive pulley so that the member is unwound on each drive pulley so as to move away from each other as the member moves away from each drive pulley. 2. The optical member driving device for an image forming apparatus according to claim 1, wherein the optical member includes a first optical member having a light source and a reflecting mirror, and a second optical member having a pair of reflecting mirrors. 3. The optical member driving device for an image forming apparatus according to claim 2, wherein the moving speed of the first optical member is twice the moving speed of the second optical member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988011794U JP2531349Y2 (en) | 1988-01-29 | 1988-01-29 | Optical member driving device of image forming apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988011794U JP2531349Y2 (en) | 1988-01-29 | 1988-01-29 | Optical member driving device of image forming apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01115755U true JPH01115755U (en) | 1989-08-03 |
JP2531349Y2 JP2531349Y2 (en) | 1997-04-02 |
Family
ID=31220659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988011794U Expired - Lifetime JP2531349Y2 (en) | 1988-01-29 | 1988-01-29 | Optical member driving device of image forming apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2531349Y2 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58156965A (en) * | 1982-03-11 | 1983-09-19 | Minolta Camera Co Ltd | Optical scanning device |
JPS59111632A (en) * | 1982-12-18 | 1984-06-27 | Minolta Camera Co Ltd | Scanning system driving device of copying machine |
JPS6118940A (en) * | 1984-07-05 | 1986-01-27 | Konishiroku Photo Ind Co Ltd | Optical device of copying machine |
JPS6142642A (en) * | 1984-08-06 | 1986-03-01 | Canon Inc | Original scanner |
JPS62201742U (en) * | 1986-06-16 | 1987-12-23 |
-
1988
- 1988-01-29 JP JP1988011794U patent/JP2531349Y2/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58156965A (en) * | 1982-03-11 | 1983-09-19 | Minolta Camera Co Ltd | Optical scanning device |
JPS59111632A (en) * | 1982-12-18 | 1984-06-27 | Minolta Camera Co Ltd | Scanning system driving device of copying machine |
JPS6118940A (en) * | 1984-07-05 | 1986-01-27 | Konishiroku Photo Ind Co Ltd | Optical device of copying machine |
JPS6142642A (en) * | 1984-08-06 | 1986-03-01 | Canon Inc | Original scanner |
JPS62201742U (en) * | 1986-06-16 | 1987-12-23 |
Also Published As
Publication number | Publication date |
---|---|
JP2531349Y2 (en) | 1997-04-02 |
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