JPS5865068U - Illumination device for erasing residual charges in copying machines - Google Patents
Illumination device for erasing residual charges in copying machinesInfo
- Publication number
- JPS5865068U JPS5865068U JP16015581U JP16015581U JPS5865068U JP S5865068 U JPS5865068 U JP S5865068U JP 16015581 U JP16015581 U JP 16015581U JP 16015581 U JP16015581 U JP 16015581U JP S5865068 U JPS5865068 U JP S5865068U
- Authority
- JP
- Japan
- Prior art keywords
- light
- light source
- guide plate
- emitting surface
- light emitting
- 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
Landscapes
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は複写機の要部のみを簡略に示した図面、第２図
〜第５図は従来の残留電荷除去用照明装置の説明図、第
６図は本考案の一実施例の外観斜視図、第７図は同前実
施例に用いるライトガイド板及び光源ランプの部分の斜
視図である。
１・・・原稿、２・・・ランプ、３・・・感光体ドラム
、４・・・磁気ブラシ、５・・・粉末トナー、６・・・
給紙トレー、７・・・転写紙、８・・・投光手段、９・
・・回転ブラシ、１０・・・小型電球、１１・・・螢光
燈、１２・・・ライトガイド板、１３．１８・・・光源
ランフ、１４．１９・・・ホルダー、１ｅ、２０・・・
反射板、１７・・・ライトガイド板（１７ｂ・・・光放
射面、１７ｄ・・・穴、１７ｅ・・・斜面）。
第６図 ２０−
１ □
第３図
、；−
第４図
ｒ 嶌
ゝ 第７図
７ｄ１Fig. 1 is a diagram schematically showing only the main parts of a copying machine, Figs. 2 to 5 are explanatory diagrams of a conventional illumination device for removing residual charge, and Fig. 6 is a perspective view of an embodiment of the present invention. 7 are perspective views of the light guide plate and light source lamp used in the previous embodiment. DESCRIPTION OF SYMBOLS 1... Original, 2... Lamp, 3... Photosensitive drum, 4... Magnetic brush, 5... Powdered toner, 6...
Paper feed tray, 7... Transfer paper, 8... Light projecting means, 9.
... Rotating brush, 10... Small light bulb, 11... Fluorescent light, 12... Light guide plate, 13.18... Light source lamp, 14.19... Holder, 1e, 20...・
Reflector plate, 17... Light guide plate (17b... Light emitting surface, 17d... Hole, 17e... Slope). Fig. 6 20-1 □ Fig. 3, ;- Fig. 4 r 嶌ゝ Fig. 7 7d1
Claims (1)
源ランプと光放射面を結ぶ最短直線上に、それを取囲む
一つの壁面が光源ランプの方向より光放射面の光源ラン
プから遠い方の端部へ向って傾斜するようになされた穴
を設けると共に、上記ライトガイド板の光放射面と反対
側の面の少なくとも一部を該光放射面に対し上記壁面と
同方向に傾斜した面となし、又、上記光放射面の長辺を
その一辺とするライトガイド板の一面をライトガイド板
の長手方向にそってヘアライン状に粗面化し、更に該ラ
イトガイド板の光放射面、光源光入射面、及び上記穴を
取囲む全壁面を除いた総ての面に反射特性の良好な遮光
手段を施してなり、かつこれら総てを固定一体化し、感
光体ドラムの近傍に上記光放射面を配置することによっ
て上記光源光を感光体ドラム上に放射せしめ、これによ
り該ドラム上の残留電荷を消去させるようにしたことを
特徴とする複写機における残留電荷消去用照明装置。On the shortest straight line connecting the light source lamp and the light emitting surface of the transparent light guide plate that diffuses the light from the light source lamp, there is one wall surrounding it that is farther away from the light source lamp than the direction of the light source lamp. A hole is provided that is inclined toward the end, and at least a part of the surface of the light guide plate opposite to the light emitting surface is formed as a surface that is inclined with respect to the light emitting surface in the same direction as the wall surface. None, or one surface of the light guide plate whose long side is the long side of the light emitting surface is roughened in a hairline shape along the longitudinal direction of the light guide plate, and the light emitting surface of the light guide plate, the light source light is All surfaces except the entrance surface and the entire wall surrounding the hole are provided with light shielding means having good reflection characteristics, and all of these are fixed and integrated, and the light emitting surface is provided near the photoreceptor drum. 1. An illumination device for erasing residual charges in a copying machine, characterized in that the light source light is emitted onto a photoreceptor drum by arranging a light source, thereby erasing residual charges on the drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16015581U JPS5865068U (en) | 1981-10-27 | 1981-10-27 | Illumination device for erasing residual charges in copying machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16015581U JPS5865068U (en) | 1981-10-27 | 1981-10-27 | Illumination device for erasing residual charges in copying machines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5865068U true JPS5865068U (en) | 1983-05-02 |
| JPS6237250Y2 JPS6237250Y2 (en) | 1987-09-22 |
Family
ID=29952581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16015581U Granted JPS5865068U (en) | 1981-10-27 | 1981-10-27 | Illumination device for erasing residual charges in copying machines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5865068U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016161796A (en) * | 2015-03-03 | 2016-09-05 | シャープ株式会社 | Electricity eliminating device and image forming apparatus including the same |
| JP2018189793A (en) * | 2017-05-02 | 2018-11-29 | キヤノン株式会社 | Image formation apparatus and photoreceptor unit |
-
1981
- 1981-10-27 JP JP16015581U patent/JPS5865068U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016161796A (en) * | 2015-03-03 | 2016-09-05 | シャープ株式会社 | Electricity eliminating device and image forming apparatus including the same |
| JP2018189793A (en) * | 2017-05-02 | 2018-11-29 | キヤノン株式会社 | Image formation apparatus and photoreceptor unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6237250Y2 (en) | 1987-09-22 |
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