JPH0377949U - - Google Patents
Info
- Publication number
- JPH0377949U JPH0377949U JP13872489U JP13872489U JPH0377949U JP H0377949 U JPH0377949 U JP H0377949U JP 13872489 U JP13872489 U JP 13872489U JP 13872489 U JP13872489 U JP 13872489U JP H0377949 U JPH0377949 U JP H0377949U
- Authority
- JP
- Japan
- Prior art keywords
- shield case
- photoreceptor
- air
- ventilation hole
- corona discharger
- 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 description 9
- 238000009423 ventilation Methods 0.000 claims 7
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Description
第１図は本考案の一実施例である感光体の帯電
装置１の簡略化した断面図、第２図は本考案の一
実施例である電子写真装置の基本的構成を示す簡
略化した断面図、第３図はコロナ放電器３の斜視
図、第４図〜第６図は本考案の他の実施例を示す
簡略化した断面図、第７図は従来の技術を説明す
るための図である。
１……感光体の帯電装置、２，４０……感光体
、３，４７……コロナ放電器、４，５１，５２…
…フアン、５，４１……放電ワイヤ、６，４２…
…シールドケース、７，４９，５０……通気孔、
８ａ，８ｂ，４３，４４……ダクト、１０ａ，１
０ｂ，４５，４６……シール部材、３３……グリ
ツド。
FIG. 1 is a simplified cross-sectional view of a photoreceptor charging device 1 which is an embodiment of the present invention, and FIG. 2 is a simplified cross-sectional view showing the basic configuration of an electrophotographic apparatus which is an embodiment of the present invention. 3 is a perspective view of the corona discharger 3, FIGS. 4 to 6 are simplified sectional views showing other embodiments of the present invention, and FIG. 7 is a diagram for explaining the conventional technology. It is. 1...Charging device for photoreceptor, 2,40...Photoreceptor, 3,47...Corona discharger, 4,51,52...
...Fan, 5,41...Discharge wire, 6,42...
...Shield case, 7,49,50...Vent hole,
8a, 8b, 43, 44... duct, 10a, 1
0b, 45, 46... Seal member, 33... Grid.
Claims (1)
の帯電された感光体上に静電潜像を形成する電子
写真装置において、 前記コロナ放電器は、 放電ワイヤと、 放電ワイヤから間隔をあけて放電ワイヤを外
囲し、感光体に向かつて開放しており、その軸直
角断面が大略的に角形のＵ字状に形成され、その
角隅部には通気孔を有し、放電ワイヤとの間でコ
ロナ放電を行うシールドケースとを備え、 さらに前記通気孔に接続され、シールドケース
内に空気を誘引し、シールドケース外へ空気を排
出するための機構を含むことを特徴とする電子写
真装置。 (2) 前記コロナ放電器は、シールドケースの両
角隅部に通気孔がそれぞれ形成され、 前記空気排出機構は、シールドケースの一方の
通気孔から他方の通気孔へ向けて、シールドケー
ス内で空気の流れを設けることを特徴とする実用
新案登録請求の範囲第１項記載の電子写真装置。 (3) 前記コロナ放電器は、感光体の下方に配置
され、前記シールドケースに取付けられて感光体
の外周面に摺接するシール部材を備えることを特
徴とする実用新案登録請求の範囲第１項記載の電
子写真装置。 (4) 前記コロナ放電器は、前記放電ワイヤと感
光体との間に配置され、感光体の表面電位を調整
するためのグリツド部材を備えることを特徴とす
る実用新案登録請求の範囲第１項記載の電子写真
装置。 (5) 前記空気排出機構はフアンを含み、前記シ
ールドケースの一方の角隅部に形成される通気孔
からシールドケース内に空気を誘引し、他方の角
隅部に形成される通気孔からシールドケース外へ
空気を排出するようにしたことを特徴とする実用
新案登録請求の範囲第１項記載の電子写真装置。[Claims for Utility Model Registration] (1) An electrophotographic apparatus that charges a photoreceptor with a corona discharger and forms an electrostatic latent image on the charged photoreceptor, the corona discharger comprising: It surrounds the discharge wire at a distance from the discharge wire, and is open toward the photoconductor, and its axis-perpendicular cross section is formed into a roughly rectangular U-shape. A shield case having a ventilation hole and performing corona discharge between the discharge wire and a mechanism connected to the ventilation hole to attract air into the shield case and discharge the air outside the shield case. An electrophotographic device comprising: (2) The corona discharger has ventilation holes formed at both corners of the shield case, and the air exhaust mechanism discharges air within the shield case from one ventilation hole to the other ventilation hole. An electrophotographic apparatus according to claim 1, characterized in that the following steps are provided. (3) Utility model registration claim 1, wherein the corona discharger is provided with a sealing member disposed below the photoreceptor, attached to the shield case, and slidingly in contact with the outer peripheral surface of the photoreceptor. The electrophotographic device described. (4) The corona discharger includes a grid member disposed between the discharge wire and the photoreceptor for adjusting the surface potential of the photoreceptor, as claimed in claim 1 of the utility model registration claim. The electrophotographic device described. (5) The air exhaust mechanism includes a fan, which draws air into the shield case through a ventilation hole formed in one corner of the shield case, and draws air into the shield case from a ventilation hole formed in the other corner. An electrophotographic apparatus according to claim 1, characterized in that air is discharged to the outside of the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13872489U JPH0377949U (en) | 1989-11-29 | 1989-11-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13872489U JPH0377949U (en) | 1989-11-29 | 1989-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0377949U true JPH0377949U (en) | 1991-08-06 |
Family
ID=31685805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13872489U Pending JPH0377949U (en) | 1989-11-29 | 1989-11-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0377949U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07287436A (en) * | 1994-04-15 | 1995-10-31 | Ricoh Co Ltd | Corona discharger |
| JP2003131461A (en) * | 2001-10-25 | 2003-05-09 | Ricoh Co Ltd | Image forming device and image forming unit |
| JP2006243442A (en) * | 2005-03-04 | 2006-09-14 | Fuji Xerox Co Ltd | Image forming apparatus |
| JP2010266779A (en) * | 2009-05-18 | 2010-11-25 | Konica Minolta Business Technologies Inc | Charging device |
| JP2012198490A (en) * | 2011-03-10 | 2012-10-18 | Konica Minolta Business Technologies Inc | Image forming apparatus |
| JP2013238660A (en) * | 2012-05-11 | 2013-11-28 | Konica Minolta Inc | Charging device and image forming apparatus |
| JP2014238530A (en) * | 2013-06-10 | 2014-12-18 | コニカミノルタ株式会社 | Image forming apparatus |
-
1989
- 1989-11-29 JP JP13872489U patent/JPH0377949U/ja active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07287436A (en) * | 1994-04-15 | 1995-10-31 | Ricoh Co Ltd | Corona discharger |
| JP2003131461A (en) * | 2001-10-25 | 2003-05-09 | Ricoh Co Ltd | Image forming device and image forming unit |
| JP2006243442A (en) * | 2005-03-04 | 2006-09-14 | Fuji Xerox Co Ltd | Image forming apparatus |
| JP4572705B2 (en) * | 2005-03-04 | 2010-11-04 | 富士ゼロックス株式会社 | Image forming apparatus |
| JP2010266779A (en) * | 2009-05-18 | 2010-11-25 | Konica Minolta Business Technologies Inc | Charging device |
| JP2012198490A (en) * | 2011-03-10 | 2012-10-18 | Konica Minolta Business Technologies Inc | Image forming apparatus |
| JP2013238660A (en) * | 2012-05-11 | 2013-11-28 | Konica Minolta Inc | Charging device and image forming apparatus |
| JP2014238530A (en) * | 2013-06-10 | 2014-12-18 | コニカミノルタ株式会社 | Image forming apparatus |
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