JPS55144265A - Developing method for electrostatic latent image - Google Patents
Developing method for electrostatic latent imageInfo
- Publication number
- JPS55144265A JPS55144265A JP5299979A JP5299979A JPS55144265A JP S55144265 A JPS55144265 A JP S55144265A JP 5299979 A JP5299979 A JP 5299979A JP 5299979 A JP5299979 A JP 5299979A JP S55144265 A JPS55144265 A JP S55144265A
- Authority
- JP
- Japan
- Prior art keywords
- toners
- developer
- nonmagnetic
- replenisher
- developing
- 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
- Magnetic Brush Developing In Electrophotography (AREA)
- Developing For Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
PURPOSE: To enable the obtaining of always constant image quality by applying the developing bias voltage corresponding to the minimum value of the reflected density of the developed toner images and developing the electrostatic latent images by the developer.
CONSTITUTION: The developer D mixed with magnetic toners and nonmagnetic toners is used in a developing device 2 consisting of a photosensitive drum 1 and developing roller 3, etc. and a replenisher 11 which stores the developer D and a replenisher 12 of nonmagnetic toners are provided. The both toners are charged by the frictions to respectively opposite polarities. At the development, the consumption of the nonmagnetic toners is higher. The mixing ratio of the toners is detected by the toner concentration detector 8 mounted to a scraper 7 and if the nonmagnetic toners are less, the specified amount of the toners are replenished from the replenisher 12 into the tank 6 so that the toner ratio of the developer D is maintained constant.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5299979A JPS55144265A (en) | 1979-04-28 | 1979-04-28 | Developing method for electrostatic latent image |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5299979A JPS55144265A (en) | 1979-04-28 | 1979-04-28 | Developing method for electrostatic latent image |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55144265A true JPS55144265A (en) | 1980-11-11 |
Family
ID=12930618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5299979A Pending JPS55144265A (en) | 1979-04-28 | 1979-04-28 | Developing method for electrostatic latent image |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55144265A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57104159A (en) * | 1980-12-22 | 1982-06-29 | Konishiroku Photo Ind Co Ltd | Toner density detecting method |
JPS59212861A (en) * | 1983-05-17 | 1984-12-01 | Sharp Corp | Copying machine |
JPS61236573A (en) * | 1985-04-12 | 1986-10-21 | Canon Inc | Developing device |
-
1979
- 1979-04-28 JP JP5299979A patent/JPS55144265A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57104159A (en) * | 1980-12-22 | 1982-06-29 | Konishiroku Photo Ind Co Ltd | Toner density detecting method |
JPS6367184B2 (en) * | 1980-12-22 | 1988-12-23 | Konishiroku Photo Ind | |
JPS59212861A (en) * | 1983-05-17 | 1984-12-01 | Sharp Corp | Copying machine |
JPS61236573A (en) * | 1985-04-12 | 1986-10-21 | Canon Inc | Developing device |
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