JPH0481142U - - Google Patents
Info
- Publication number
- JPH0481142U JPH0481142U JP12559690U JP12559690U JPH0481142U JP H0481142 U JPH0481142 U JP H0481142U JP 12559690 U JP12559690 U JP 12559690U JP 12559690 U JP12559690 U JP 12559690U JP H0481142 U JPH0481142 U JP H0481142U
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- pitch
- image forming
- forming apparatus
- driving device
- 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 description 10
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Optical Systems Of Projection Type Copiers (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Description
第１図は本考案の一実施例に係る複写機の光学
系駆動装置を示す概略構成図、第２図は上記光学
系駆動装置の要部を示し一部断面を含む拡大図、
第３図は本考案の別の実施例に係る光学系駆動装
置の要部を示し一部断面を含む拡大図、第４図は
本考案の背景の一例となる従来の複写機の光学系
駆動装置を示す概略構成図である。
符号の説明、１，１ｃ，１ｄ……光学系駆動装
置、２，２ｃ，２ｄ……送り軸、３ａ，３ｂ……
スパイラル、４……移動子、５……第１移動部、
６……ガイド軸、９……ローラ、１０……ガイド
溝。
FIG. 1 is a schematic configuration diagram showing an optical system drive device of a copying machine according to an embodiment of the present invention, and FIG. 2 is an enlarged view including a partial cross section showing the main parts of the optical system drive device.
FIG. 3 is an enlarged view including a partial cross section showing the main parts of an optical system drive device according to another embodiment of the present invention, and FIG. 4 is an optical system drive of a conventional copying machine, which is an example of the background of the present invention. FIG. 1 is a schematic configuration diagram showing the device. Explanation of symbols: 1, 1c, 1d...Optical system drive device, 2, 2c, 2d...Feed axis, 3a, 3b...
spiral, 4... moving element, 5... first moving part,
6...Guide shaft, 9...Roller, 10...Guide groove.
Claims (1)
軸と、該送り軸のガイド部に嵌合する移動子が設
けられた光学系とを備え、上記移動子を上記送り
軸の回転駆動により当該軸の円周方向に移動させ
ず軸方向に移動させる画像形成装置の光学系駆動
装置において、 上記光学系の始発位置近傍における上記ガイド
部のピツチを、上記光学系の定常の移動位置にお
けるピツチよりも小さくしたことを特徴とする画
像形成装置の光学系駆動装置。[Claims for Utility Model Registration] A feed shaft having a spiral guide portion formed on the circumferential surface of the shaft, and an optical system provided with a mover that fits into the guide portion of the feed shaft; In an optical system driving device of an image forming apparatus, the pitch of the guide section near the starting position of the optical system is adjusted by adjusting the pitch of the guide section in the vicinity of the starting position of the optical system. An optical system driving device for an image forming apparatus, characterized in that the pitch is smaller than the pitch at a steady moving position of the system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12559690U JPH0481142U (en) | 1990-11-27 | 1990-11-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12559690U JPH0481142U (en) | 1990-11-27 | 1990-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0481142U true JPH0481142U (en) | 1992-07-15 |
Family
ID=31873188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12559690U Pending JPH0481142U (en) | 1990-11-27 | 1990-11-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0481142U (en) |
-
1990
- 1990-11-27 JP JP12559690U patent/JPH0481142U/ja active Pending
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