JPS5459937A - Electrophotographic developing method - Google Patents
Electrophotographic developing methodInfo
- Publication number
- JPS5459937A JPS5459937A JP12620777A JP12620777A JPS5459937A JP S5459937 A JPS5459937 A JP S5459937A JP 12620777 A JP12620777 A JP 12620777A JP 12620777 A JP12620777 A JP 12620777A JP S5459937 A JPS5459937 A JP S5459937A
- Authority
- JP
- Japan
- Prior art keywords
- image
- toner
- electrostatic latent
- bias voltage
- magnetic
- 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)
Abstract
PURPOSE: To inhibit deposition of toner on non-image parts and increase the image concentration of image parts by applying a specific bias voltage in the case of developing by using one-component magnetic toner.
CONSTITUTION: A photosensitive drum 1 which comprises laminating a Se photosensitive layer 3 on a grounded conductive drum 2 is charged by a charger 4, and is formed with the electrostatic latent image by the light image radiation corresponding to the original. With the developing device 5 consisting of a rotatable non- magnetic sleeve 7 having a stationay magnetic roller 6 alternately magnetized with N pole and S pole in the inside and a toner hopper 8; a bias voltage of a polarity opposite from that of the electrostatic latent image on the drum 1 and of a range of the flat portion of the reflection density-bias voltage curve of the non-image parts is applied on the sleeve 7 from a bias power source 9 and the electrostatic latent image is developed by the one-component type magnetic toner of less than 1012Ωcm in specific volume resistance value. The toner image is transferred onto the transfer paper S having been fed by a feed roller 11 from a feed cassette 10, by means of a corona transfer unit 12
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12620777A JPS5459937A (en) | 1977-10-20 | 1977-10-20 | Electrophotographic developing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12620777A JPS5459937A (en) | 1977-10-20 | 1977-10-20 | Electrophotographic developing method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5459937A true JPS5459937A (en) | 1979-05-15 |
Family
ID=14929355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12620777A Pending JPS5459937A (en) | 1977-10-20 | 1977-10-20 | Electrophotographic developing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5459937A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5713466A (en) * | 1980-06-26 | 1982-01-23 | Toshiba Corp | Developing device using one-component magnetic toner |
-
1977
- 1977-10-20 JP JP12620777A patent/JPS5459937A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5713466A (en) * | 1980-06-26 | 1982-01-23 | Toshiba Corp | Developing device using one-component magnetic toner |
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