JPS63141966U - - Google Patents
Info
- Publication number
- JPS63141966U JPS63141966U JP3541887U JP3541887U JPS63141966U JP S63141966 U JPS63141966 U JP S63141966U JP 3541887 U JP3541887 U JP 3541887U JP 3541887 U JP3541887 U JP 3541887U JP S63141966 U JPS63141966 U JP S63141966U
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- transfer
- corona discharger
- transfer drum
- opening
- 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
- 238000000926 separation method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 108091008695 photoreceptors Proteins 0.000 description 1
Landscapes
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Color Electrophotography (AREA)
Description
第１図は本考案実施例による画像形成装置の全
体構成図、第２図は第１図に示した画像形成装置
に具備されている転写ドラムの斜視図、第３図は
第１図に示した画像形成装置における感光体ドラ
ムと転写ドラムとの内部構造を示す断面図、第４
図は第１図に示した画像形成装置の制御系を示す
ブロツク図、第５，６，７図は本考案実施例によ
る作用をそれぞれ示す模型図である。
１……画像形成装置、２……感光体ドラム、３
Ｇ……転写ドラム、３Ｄ，３Ｅ……開口部、３Ｇ
……転写用コロ放電器、３Ｈ……シート分離分コ
ロナ放電器、３Ｐ……誘電体シートあるいは静電
シート。
FIG. 1 is an overall configuration diagram of an image forming apparatus according to an embodiment of the present invention, FIG. 2 is a perspective view of a transfer drum included in the image forming apparatus shown in FIG. 1, and FIG. 3 is a diagram shown in FIG. 1. FIG. 4 is a sectional view showing the internal structure of a photoreceptor drum and a transfer drum in an image forming apparatus;
This figure is a block diagram showing the control system of the image forming apparatus shown in FIG. 1, and FIGS. 5, 6, and 7 are model diagrams showing the operation of the embodiment of the present invention. 1... Image forming device, 2... Photosensitive drum, 3
G...Transfer drum, 3D, 3E...Opening, 3G
...corona discharger for transfer, 3H...corona discharger for sheet separation, 3P...dielectric sheet or electrostatic sheet.
Claims (1)
写されるシートを表面に担持できる回転可能な転
写ドラムを用い、この転写ドラムを複数回転させ
て上記感光体上に形成される色成分毎の画像をシ
ート上に重畳させて多色複写物を得る画像形成装
置において、 上記転写ドラムは、その周面の一部に上記シー
ト先端を把持するためのグリツパと、上記周面に
おける転写可能領域に相当する大きさの開口部と
、この開口部を覆い得る誘電体シートあるいは静
電シートとが設けられるとともに、内部に、上記
開口部に臨むことのできる位置で、転写用コロナ
放電器および上記シートの移動方向における上記
転写用コロナ放電器の下流側に配置されているシ
ート分離用コロナ放電器を備え、単色複写時およ
び多色複写時に拘らず常時回転し、一方、上記シ
ート分離用コロナ放電器は、上記転写ドラム上か
ら上記シートが分離される時機に作動することを
特徴とする画像形成装置。[Claims for Utility Model Registration] A rotatable transfer drum capable of carrying on its surface a sheet to which an image of each color component formed on the photoconductor is transferred is used, and the transfer drum is rotated multiple times to transfer the image to the photoconductor. In an image forming apparatus that obtains a multicolor copy by superimposing images of each color component formed on a sheet onto a sheet, the transfer drum has a gripper on a part of its circumferential surface for gripping the leading edge of the sheet. , an opening having a size corresponding to the transferable area on the circumferential surface, and a dielectric sheet or an electrostatic sheet that can cover this opening, and a position inside thereof that can face the opening. , comprising a transfer corona discharger and a sheet separation corona discharger disposed downstream of the transfer corona discharger in the moving direction of the sheet, and constantly rotates regardless of whether monochrome copying or multicolor copying is performed; On the other hand, the image forming apparatus is characterized in that the sheet separation corona discharger operates at the time when the sheet is separated from the transfer drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3541887U JPS63141966U (en) | 1987-03-11 | 1987-03-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3541887U JPS63141966U (en) | 1987-03-11 | 1987-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63141966U true JPS63141966U (en) | 1988-09-19 |
Family
ID=30844891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3541887U Pending JPS63141966U (en) | 1987-03-11 | 1987-03-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63141966U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61133960A (en) * | 1984-12-05 | 1986-06-21 | Canon Inc | Transfer device |
-
1987
- 1987-03-11 JP JP3541887U patent/JPS63141966U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61133960A (en) * | 1984-12-05 | 1986-06-21 | Canon Inc | Transfer device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4712906A (en) | Electrostatographic apparatus having a transfer drum | |
| JPH0556507B2 (en) | ||
| JPS63141966U (en) | ||
| JPS63141965U (en) | ||
| JP2798978B2 (en) | Image forming device | |
| JP3017521B2 (en) | Transfer material holding method | |
| JPH0169255U (en) | ||
| JPH0219168U (en) | ||
| JPS59192159U (en) | color copying machine | |
| JPS63141967U (en) | ||
| JPS6238660U (en) | ||
| JPH0371355U (en) | ||
| JPS63200854U (en) | ||
| JPH0722684Y2 (en) | Transfer device | |
| JPH02138767U (en) | ||
| JPH0356954U (en) | ||
| JPS6314254U (en) | ||
| JPS60189049U (en) | electrophotographic equipment | |
| JPH0477909B2 (en) | ||
| JPS63160566U (en) | ||
| JPH0169254U (en) | ||
| JPS6290673A (en) | Method for electrostatic attracting transfer material | |
| JPH022350U (en) | ||
| JPS63187157U (en) | ||
| JPS6330849U (en) |