JPS55143567A - Multiple sheet electrophotographic copying method - Google Patents
Multiple sheet electrophotographic copying methodInfo
- Publication number
- JPS55143567A JPS55143567A JP5191579A JP5191579A JPS55143567A JP S55143567 A JPS55143567 A JP S55143567A JP 5191579 A JP5191579 A JP 5191579A JP 5191579 A JP5191579 A JP 5191579A JP S55143567 A JPS55143567 A JP S55143567A
- Authority
- JP
- Japan
- Prior art keywords
- photoconductive layer
- light
- sensitivity
- color light
- color
- 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.)
- Granted
Links
Landscapes
- Photoreceptors In Electrophotography (AREA)
Abstract
PURPOSE: To obtain multiple copies without degrading image quality by laminating a photoconductive layer which has sensitivity to light of a certain wavelength region and another photoconductive layer which transmit this light and has sensitivity to light of a wavelength region differing from that of said layer, on a conductive substrate.
CONSTITUTION: A photoconductive layer 11 which has sensitivity to A-color light in the state that it is held charged to positive or negative and a photoconductive layer 12 which has sensitivity to the B-color light differing from the A-color light in the same state as this and allows the good transmission of the A-color light are provided on a conductive substrate 10 to constitute the photoreceptor 1. As a result of this, the photoreceptor portions corresponding to the B-color image of the original are radiated by the B-color light but since only the photoconductive layer 12 is made conductive, the distributions of the negative charges in said portions are still maintained invariable. Hence, the leakage in the charges constituting the electrostatic images and gradual decrease in image quality upon repetition of the transfers of visible images do not occur.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5191579A JPS55143567A (en) | 1979-04-26 | 1979-04-26 | Multiple sheet electrophotographic copying method |
US06/141,514 US4370398A (en) | 1979-04-26 | 1980-04-18 | Electrostatic copying process |
DE3016245A DE3016245C2 (en) | 1979-04-26 | 1980-04-26 | Electrophotographic copier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5191579A JPS55143567A (en) | 1979-04-26 | 1979-04-26 | Multiple sheet electrophotographic copying method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55143567A true JPS55143567A (en) | 1980-11-08 |
JPS6216422B2 JPS6216422B2 (en) | 1987-04-13 |
Family
ID=12900160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5191579A Granted JPS55143567A (en) | 1979-04-26 | 1979-04-26 | Multiple sheet electrophotographic copying method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55143567A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4864469A (en) * | 1988-04-11 | 1989-09-05 | Tektronix, Inc. | Support structure |
-
1979
- 1979-04-26 JP JP5191579A patent/JPS55143567A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6216422B2 (en) | 1987-04-13 |
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