JPS6314254U - - Google Patents
Info
- Publication number
- JPS6314254U JPS6314254U JP10557986U JP10557986U JPS6314254U JP S6314254 U JPS6314254 U JP S6314254U JP 10557986 U JP10557986 U JP 10557986U JP 10557986 U JP10557986 U JP 10557986U JP S6314254 U JPS6314254 U JP S6314254U
- Authority
- JP
- Japan
- Prior art keywords
- toner
- copying machine
- electrophotographic copying
- image
- toner image
- 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 4
- 238000004140 cleaning Methods 0.000 claims 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000013518 transcription Methods 0.000 description 1
- 230000035897 transcription Effects 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
Description
第１図および第２図は、この考案に係る電子写
真複写機の実施例を示し、第１図は全体の概略断
面図、第２図は転写時の状態を示す断面図である
。
（符号の説明）、６：転写コロトロン、１１：
複写用紙、１４：感光体、１５：第１のトナー像
（マスター像）、１６：第２のトナー像。
1 and 2 show an embodiment of an electrophotographic copying machine according to the invention, with FIG. 1 being a schematic cross-sectional view of the whole, and FIG. 2 being a cross-sectional view showing the state at the time of transfer. (Explanation of symbols), 6: Transcription corotron, 11:
Copy paper, 14: Photoreceptor, 15: First toner image (master image), 16: Second toner image.
Claims (1)
極性に帯電した第１および第２のトナーを各別に
装填した電子写真複写機であつて、帯電、露光の
プロセスを経て静電潜像が形成された感光体上に
第１のトナーで現像して形成した第１のトナー像
をマスター像とし、このマスター像を第２のトナ
ーで現像し、第１のトナー上に第２のトナーを付
着させて第２のトナー像を形成すると共に、この
第２のトナー像を複写用紙に転写するように構成
したことを特徴とする電子写真複写機。 (2) 複写用紙への第２のトナー像の転写後に、
第１のトナーと同極性の全面帯電と全面露光とを
感光体に施す手段を設けて、マスター像の電位の
低下を防止するように構成したことを特徴とする
実用新案登録請求の範囲第１項記載の電子写真複
写機。 (3) 第２のトナーによるマスター像の現像を、
感光体とは非接触のトナー飛翔により行なわせる
ように構成したことを特徴とする実用新案登録請
求の範囲第１項記載の電子写真複写機。 (4) 感光体上に付着させた第１および第２のト
ナーをクリーニングするために、第２のトナーの
みを選択的にクリーニングする第１のクリーニン
グ装置と、両方を同時にクリーニングする第２の
クリーニング装置を設けたことを特徴とする実用
新案登録請求の範囲第１項記載の電子写真複写機
。 (5) 感光体を帯電させる帯電手段および第２の
トナー像を複写用紙に転写させる転写手段は共に
それぞれ、両極性にスイツチング可能に構成され
ていることを特徴とする実用新案登録請求の範囲
第１項記載の電子写真複写機。[Claims for Utility Model Registration] (1) An electrophotographic copying machine in which first and second toners charged with opposite polarities are separately loaded in first and second developing devices, A first toner image formed by developing with a first toner on a photoconductor on which an electrostatic latent image has been formed through the exposure process is used as a master image, and this master image is developed with a second toner and a second toner image is formed. 1. An electrophotographic copying machine characterized in that a second toner is attached onto a first toner to form a second toner image, and the second toner image is transferred onto copy paper. (2) After transferring the second toner image to the copy paper,
Utility model registration claim 1, characterized in that the device is configured to prevent the potential of the master image from decreasing by providing means for subjecting the photoreceptor to full-surface charging and full-surface exposure to the same polarity as the first toner. The electrophotographic copying machine described in Section 1. (3) Development of the master image with the second toner,
An electrophotographic copying machine according to claim 1, characterized in that the electrophotographic copying machine is configured to perform toner flying without contact with a photoreceptor. (4) In order to clean the first and second toners deposited on the photoconductor, a first cleaning device selectively cleans only the second toner, and a second cleaning device that simultaneously cleans both toners. An electrophotographic copying machine according to claim 1 of the utility model registration claim, characterized in that a device is provided. (5) The charging means for charging the photoreceptor and the transfer means for transferring the second toner image onto copy paper are each configured to be able to switch between polarities. The electrophotographic copying machine according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10557986U JPS6314254U (en) | 1986-07-11 | 1986-07-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10557986U JPS6314254U (en) | 1986-07-11 | 1986-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6314254U true JPS6314254U (en) | 1988-01-29 |
Family
ID=30980141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10557986U Pending JPS6314254U (en) | 1986-07-11 | 1986-07-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6314254U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01204077A (en) * | 1988-02-10 | 1989-08-16 | Toshiba Corp | Image forming device |
-
1986
- 1986-07-11 JP JP10557986U patent/JPS6314254U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01204077A (en) * | 1988-02-10 | 1989-08-16 | Toshiba Corp | Image forming device |
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