JPS5633662A - Electrophotographic apparatus - Google Patents
Electrophotographic apparatusInfo
- Publication number
- JPS5633662A JPS5633662A JP10957879A JP10957879A JPS5633662A JP S5633662 A JPS5633662 A JP S5633662A JP 10957879 A JP10957879 A JP 10957879A JP 10957879 A JP10957879 A JP 10957879A JP S5633662 A JPS5633662 A JP S5633662A
- Authority
- JP
- Japan
- Prior art keywords
- toner image
- optical system
- unit
- focusing
- accordance
- 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
Landscapes
- Combination Of More Than One Step In Electrophotography (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
Abstract
PURPOSE: To enhance image retentivity by forming a master toner image developed with the first imaging unit.
CONSTITUTION: A master toner image is formed in accordance with original 18 by focusing of first optical system 47 in first imaging unit 25, and a toner image is formed in second imaging unit 34 by focusing of second optical system 48 in accordance with the master toner image in unit 25. In addition, a toner image is directly formed in accordance with original 18 by focusing of third optical system 49 contray to unit 34. An optional optical system can be selected while using part of these 3 optical systems 47, 48, 49 in common. Since the master toner image developed by unit 25 is formed, retentivity can be enhanced and high speed copying can be achieved.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10957879A JPS5633662A (en) | 1979-08-28 | 1979-08-28 | Electrophotographic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10957879A JPS5633662A (en) | 1979-08-28 | 1979-08-28 | Electrophotographic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5633662A true JPS5633662A (en) | 1981-04-04 |
Family
ID=14513810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10957879A Pending JPS5633662A (en) | 1979-08-28 | 1979-08-28 | Electrophotographic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5633662A (en) |
-
1979
- 1979-08-28 JP JP10957879A patent/JPS5633662A/en active Pending
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