JPS5611463A - Electrophotographic process and its apparatus - Google Patents
Electrophotographic process and its apparatusInfo
- Publication number
- JPS5611463A JPS5611463A JP8726279A JP8726279A JPS5611463A JP S5611463 A JPS5611463 A JP S5611463A JP 8726279 A JP8726279 A JP 8726279A JP 8726279 A JP8726279 A JP 8726279A JP S5611463 A JPS5611463 A JP S5611463A
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor
- light
- toner
- red
- surface potential
- 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 enhance transfer efficiency, by illuminating a photoreceptor from a conductive substrate side at the same time as transfer charging on the area to be transferred, and rendering photoreceptor surface potential same as attached toner polarity, or erasing said potential.
CONSTITUTION: The first photoconductive layer 22 sensitive to the visible light region, and the second photoconductive layer 23 transmitting a specified chromatic light, such as red, but having sensitivity to light except said light are laminated on transparent conductive substrate 21 to form photoreceptor 20, which is negatively charged with primary charger 24 under red light illumination, positively charged with secondary charger 25, then exposed to a 2-color original light image, and developed with positively charged red toner TR and negatively charged black toner TB. Subsequently, photoreceptor 20 is illuminated by red light using an exposing unit to render to surface potential of the part with toner TB attached negative, illuminated by blue light to render the whole surface potential of photoreceptor zero, thus permitting the attractive force of photoreceptor for toners TB, TR to be wholly erased, and toners TB, TR to be transferred efficiently to transfer paper P.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8726279A JPS5611463A (en) | 1979-07-09 | 1979-07-09 | Electrophotographic process and its apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8726279A JPS5611463A (en) | 1979-07-09 | 1979-07-09 | Electrophotographic process and its apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5611463A true JPS5611463A (en) | 1981-02-04 |
Family
ID=13909853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8726279A Pending JPS5611463A (en) | 1979-07-09 | 1979-07-09 | Electrophotographic process and its apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5611463A (en) |
-
1979
- 1979-07-09 JP JP8726279A patent/JPS5611463A/en active Pending
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