JPS61121457U - - Google Patents
Info
- Publication number
- JPS61121457U JPS61121457U JP436785U JP436785U JPS61121457U JP S61121457 U JPS61121457 U JP S61121457U JP 436785 U JP436785 U JP 436785U JP 436785 U JP436785 U JP 436785U JP S61121457 U JPS61121457 U JP S61121457U
- Authority
- JP
- Japan
- Prior art keywords
- corona
- voltage source
- photoreceptor
- upstream
- charging 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
- 108091008695 photoreceptors Proteins 0.000 claims 3
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案に係る帯電装置の概略構成を示
す図、第２図は切換手段の動作制御の一例を示す
タイミングチヤート並びに第３図はシールドケー
スの背面にフアンを設けた応用例を示す図である
。
１…コロナ電極、２…感光体ドラム、４…交流
コロナ電圧源、５…直流コロナ電圧源、６…切換
手段。
Fig. 1 is a diagram showing a schematic configuration of a charging device according to the present invention, Fig. 2 is a timing chart showing an example of operation control of the switching means, and Fig. 3 is an application example in which a fan is provided on the back of a shield case. It is a diagram. DESCRIPTION OF SYMBOLS 1... Corona electrode, 2... Photosensitive drum, 4... AC corona voltage source, 5... DC corona voltage source, 6... Switching means.
Claims (1)
ロナ電極にコロナ電圧を印加して感光体に電荷を
付与するようにした電子複写機の帯電装置におい
て、 直流コロナを発生させるための直流コロナ電圧
源と、 交流コロナを発生させるための交流コロナ電圧
源と、 複写画像を形成するとき上流直流コロナ電圧源
をコロナ電極に接続する一方、複写画像の形成前
乃至は形成後の感光体の回転駆動時に上流交流コ
ロナ電圧源をコロナ電極に接続する切換手段とを
備えたことを特徴とする帯電装置。[Scope of Claim for Utility Model Registration] In a charging device for an electronic copying machine that applies a corona voltage to a corona electrode stretched in the vicinity of a rotationally driven photoreceptor to impart an electric charge to the photoreceptor, a DC corona voltage source for generating a corona, an AC corona voltage source for generating an AC corona, and an upstream DC corona voltage source connected to a corona electrode when forming a copy image; A charging device comprising a switching means for connecting an upstream AC corona voltage source to a corona electrode during rotational driving of a photoreceptor after formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP436785U JPS61121457U (en) | 1985-01-16 | 1985-01-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP436785U JPS61121457U (en) | 1985-01-16 | 1985-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61121457U true JPS61121457U (en) | 1986-07-31 |
Family
ID=30479867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP436785U Pending JPS61121457U (en) | 1985-01-16 | 1985-01-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61121457U (en) |
-
1985
- 1985-01-16 JP JP436785U patent/JPS61121457U/ja active Pending
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