JPS60169649U

JPS60169649U - Electrostatic image forming device

Info

Publication number: JPS60169649U
Application number: JP5873884U
Authority: JP
Inventors: 正勝藤原; 紙谷　豊
Original assignee: 三洋電機株式会社
Priority date: 1984-04-20
Filing date: 1984-04-20
Publication date: 1985-11-11

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案装置の１実施例の中央断面図、第２図、
第３図は何れも他の実施例の感光体ドラム部分の断面図
、第４図は感光体ドラムのコピ一枚数に対する表面電位
の特性図である。主な符号の説明、６・・・・・・感光体ドラム、７・・
・・・・チャージャ、８・・・・・・露光手段、ＳＭ・
・・・・・安定化手段、６２・・・・・・発熱体、６５
・・・・・・摩擦体、８１・・・・・・光源、８３・・
・・・・短焦点レンズ列、８４・・・・・・シャッタ、
８５・・・・・・変更手段（ミラー）、８６・・・・・
・フィルタ。FIG. 1 is a central sectional view of one embodiment of the device of the present invention, FIG.
FIG. 3 is a sectional view of a photosensitive drum portion of another embodiment, and FIG. 4 is a characteristic diagram of the surface potential of the photosensitive drum with respect to the number of copies. Explanation of main symbols, 6... Photosensitive drum, 7...
... Charger, 8 ... Exposure means, SM.
... Stabilizing means, 62 ... Heating element, 65
...Friction body, 81...Light source, 83...
...Short focus lens row, 84...Shutter,
85... Changing means (mirror), 86...
·filter.

Claims

[Scope of utility model registration request]

(1) A photoreceptor drum having a photoreceptor layer attached to its outer surface;
a charger for charging the photoreceptor drum; an exposing means for forming a latent image on the photoreceptor drum corresponding to an image to be formed on copy paper; and a stabilizer for stabilizing the surface potential of the photoreceptor layer. An electrostatic image forming apparatus comprising:

(2) Utility model registration claim No. 1, wherein the stabilizing means is a heating element disposed inside the photoreceptor drum.
The electrostatic image forming apparatus described in .

(3) The electrostatic image forming apparatus according to claim (2), wherein the heating element includes a friction body that slides into contact with the inner surface of the photosensitive drum.

(4) the electrostatic image forming device is an electronic copying machine;
The exposure means includes a light source that illuminates the document on the document table, and a short focus lens array that transmits the document image illuminated by the light from the light source to the photosensitive drum, and the stabilization means includes the light source that illuminates the document on the document table. The electrostatic image forming apparatus according to claim 1, wherein the light from the light source is applied through a route different from that of the short focus lens array.

(5) The route on the side includes a shutter that opens and closes the transmission of light to this other route, means for changing the optical path of the light that has passed through the shutter to the photoreceptor drum side, and a thermal component of the light. An electrostatic image forming apparatus according to claim (4), further comprising: a filter that selectively outputs a filter.

(6) The electrostatic image forming apparatus according to claims (1) to (5), wherein the photoreceptor layer is an organic photoreceptor whose surface can be positively charged.

(7) The electrostatic image according to claim (1), wherein the electrostatic image forming apparatus is an electrostatic printer, and the exposure means includes an electric/optical conversion means. Forming device.

(8) The stabilizing means may charge the photoreceptor drum;
The electrostatic image forming apparatus according to claim (1), which is characterized in that the device includes a cycle of exposure and charge removal.