JPS62201765U - - Google Patents
Info
- Publication number
- JPS62201765U JPS62201765U JP7520487U JP7520487U JPS62201765U JP S62201765 U JPS62201765 U JP S62201765U JP 7520487 U JP7520487 U JP 7520487U JP 7520487 U JP7520487 U JP 7520487U JP S62201765 U JPS62201765 U JP S62201765U
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor
- light
- unnecessary
- light emitting
- images
- 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 7
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
Description
第1図は電子写真装置の概略構成の説明図、第
2図は必要画像部と不要な静電潜像領域との関係
を例示した感光体の展開図、第3図は本考案の一
実施例の図式図、第4図は第3図の実施例の制御
タイミングチヤート、第5図は第3図に示す実施
例の機械的構成の一例を示す一部断面略図である
。
1……感光体ドラム、2……帯電装置、3……
露光装置、4……現像装置、5……転写装置、6
及び6′……クリーニング装置、7,8……末端
不要部、9,9′……像間不要部、10……発光
装置、101〜108……発光ユニツト、S1〜
S8……スイツチ、20,21……必要画像部。
FIG. 1 is an explanatory diagram of the schematic configuration of an electrophotographic apparatus, FIG. 2 is a developed view of a photoreceptor illustrating the relationship between a necessary image area and an unnecessary electrostatic latent image area, and FIG. 3 is an embodiment of the present invention. FIG. 4 is a control timing chart of the embodiment shown in FIG. 3, and FIG. 5 is a schematic partial cross-sectional view showing an example of the mechanical configuration of the embodiment shown in FIG. 3. 1... Photosensitive drum, 2... Charging device, 3...
Exposure device, 4... Development device, 5... Transfer device, 6
and 6'... Cleaning device, 7, 8... End unnecessary part, 9, 9'... Inter-image unnecessary part, 10... Light emitting device, 101-108... Light emitting unit, S1...
S8...Switch, 20, 21...Required image section.
Claims (1)
露光後現像する前に感光体上に光を照射して不要
な静電潜像領域に対応する感光体領域の電荷を消
去する装置において、それぞれが発光ダイオード
を含む幾つかの発光ユニツトを感光体の幅方向に
ほぼ直線的に配列した発光装置を用い、原稿サイ
ズ、複写サイズ、転写用紙サイズ等に応じて定ま
る感光体上の不要な潜像領域のうち、感光体の幅
方向の末端不要部についてはこれに対応する末端
発光ユニツトの発光ダイオードを連続的に発光さ
せて消去し、残りの像間不要部については上記末
端発光ユニツト以外の発光ユニツトの発光ダイオ
ードを当該像間不要部の到来時期に合せて対応す
る時間長さだけ点灯させることを特徴とする不要
な静電潜像領域の消去装置。 In an apparatus for erasing charges on a photoreceptor area corresponding to an unnecessary electrostatic latent image area by irradiating light onto the photoreceptor after charging the photoreceptor before exposing it or after exposing it and before developing it, respectively. uses a light-emitting device in which several light-emitting units, including light-emitting diodes, are arranged almost linearly in the width direction of the photoreceptor, and eliminates unnecessary latent images on the photoreceptor depending on the original size, copy size, transfer paper size, etc. Among the areas, unnecessary parts at the ends in the width direction of the photoreceptor are erased by continuously emitting light from the light emitting diodes of the corresponding end light emitting units, and the remaining unnecessary parts between the images are erased by light emitting from devices other than the above end light emitting units. An apparatus for erasing an unnecessary electrostatic latent image area, characterized in that a light emitting diode of the unit is turned on for a corresponding length of time in accordance with the timing of arrival of the unnecessary area between the images.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7520487U JPS62201765U (en) | 1987-05-21 | 1987-05-21 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7520487U JPS62201765U (en) | 1987-05-21 | 1987-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62201765U true JPS62201765U (en) | 1987-12-23 |
Family
ID=30921131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7520487U Pending JPS62201765U (en) | 1987-05-21 | 1987-05-21 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62201765U (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51114934A (en) * | 1975-04-01 | 1976-10-09 | K I P:Kk | Exposure equipment for electronic copying machine |
JPS5248471A (en) * | 1975-10-16 | 1977-04-18 | Nisshin Haiboruteeji Kk | Ion implantation device |
JPS5311246B2 (en) * | 1972-11-27 | 1978-04-20 | Elphiac Sa | Water jet device for induction heaters |
JPS5492261A (en) * | 1977-12-29 | 1979-07-21 | Konishiroku Photo Ind Co Ltd | Destaticizing device in electrophotographic copier |
-
1987
- 1987-05-21 JP JP7520487U patent/JPS62201765U/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5311246B2 (en) * | 1972-11-27 | 1978-04-20 | Elphiac Sa | Water jet device for induction heaters |
JPS51114934A (en) * | 1975-04-01 | 1976-10-09 | K I P:Kk | Exposure equipment for electronic copying machine |
JPS5248471A (en) * | 1975-10-16 | 1977-04-18 | Nisshin Haiboruteeji Kk | Ion implantation device |
JPS5492261A (en) * | 1977-12-29 | 1979-07-21 | Konishiroku Photo Ind Co Ltd | Destaticizing device in electrophotographic copier |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS62201765U (en) | ||
JPS6358246U (en) | ||
JPS6380548U (en) | ||
JPS58163964U (en) | Development device for electrostatic printing equipment | |
JPS62195161U (en) | ||
JPS6358254U (en) | ||
JPS61284780A (en) | Image recorder | |
JPS6160560U (en) | ||
JPH0229063U (en) | ||
JPS5912153U (en) | image forming device | |
JPS6432550U (en) | ||
JPH01164462U (en) | ||
JPS62193257U (en) | ||
JPH0446467U (en) | ||
JPS61126263U (en) | ||
JPS63177854U (en) | ||
JPS5877350U (en) | electrophotographic fixing device | |
JPH0396654U (en) | ||
JPH0264979U (en) | ||
JPH0535867B2 (en) | ||
JPS6429662U (en) | ||
JPH01149653U (en) | ||
JPH0396673U (en) | ||
JPH0411557U (en) | ||
JPH0375440U (en) |