JPS5538537A - Electrostatic latent image forming method - Google Patents
Electrostatic latent image forming methodInfo
- Publication number
- JPS5538537A JPS5538537A JP11152978A JP11152978A JPS5538537A JP S5538537 A JPS5538537 A JP S5538537A JP 11152978 A JP11152978 A JP 11152978A JP 11152978 A JP11152978 A JP 11152978A JP S5538537 A JPS5538537 A JP S5538537A
- Authority
- JP
- Japan
- Prior art keywords
- images
- light
- positive
- photoreceptor
- portions
- 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
Abstract
PURPOSE: To obtain positive images through ordinary development without reversal development from negative images by performing uniform AC charging on photoreceptor surface then performing light image radiation as well as to obtain two color images by forming the photoreceptor in 3 layer structure.
CONSTITUTION: Alternately adjoining positive and negative charge patterns are formed on a photoconductive insulation layer (selenium, etc.) 2 provided on a conductive substrate 1 by a corona discharger applied with AC of frequencies 30W 100kHz and 6.7KV while either the discharger or photoreceptor is being moved at the speed associated to the frequency of the AC. Next, light images are radiated to the layer 2. The portions 2a not radiated with light remain intact and only the positive charges remain on the surface of the incident portions 2b of light. The negatively charged toner is supplied to the latent images of the portions 2b made in this way, whereby positive images are obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11152978A JPS5538537A (en) | 1978-09-11 | 1978-09-11 | Electrostatic latent image forming method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11152978A JPS5538537A (en) | 1978-09-11 | 1978-09-11 | Electrostatic latent image forming method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5538537A true JPS5538537A (en) | 1980-03-18 |
Family
ID=14563640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11152978A Pending JPS5538537A (en) | 1978-09-11 | 1978-09-11 | Electrostatic latent image forming method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5538537A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4666804A (en) * | 1984-07-06 | 1987-05-19 | Konishiroku Photo Industry Co., Ltd. | Method of and apparatus for image forming |
-
1978
- 1978-09-11 JP JP11152978A patent/JPS5538537A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4666804A (en) * | 1984-07-06 | 1987-05-19 | Konishiroku Photo Industry Co., Ltd. | Method of and apparatus for image forming |
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