JPS556338A - Electrophotographic copying method - Google Patents
Electrophotographic copying methodInfo
- Publication number
- JPS556338A JPS556338A JP7825878A JP7825878A JPS556338A JP S556338 A JPS556338 A JP S556338A JP 7825878 A JP7825878 A JP 7825878A JP 7825878 A JP7825878 A JP 7825878A JP S556338 A JPS556338 A JP S556338A
- Authority
- JP
- Japan
- Prior art keywords
- latent images
- voltage
- charging
- electrostatic latent
- polarity opposite
- 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 form good quality images having no uneven densities through one component type developing processing by charging the conductive surface of a photosensitive drum to voltage of polarity opposite from that of the electrostatic latent images formed on photoconductive surface.
CONSTITUTION: A magnetic brush by one component base toner such as of magnetic toner or the like applied with voltage of polarity opposite from that of the electrostatic latent images of the photoconductive portion 8 of a photosensitive drum 8 is formed on the sleeve 16 of a developing device 12 which is built in with a magnet roll 17. On the other hand, the conductive portion 10 of the drum 8 connecting to this electrode 19 via protecting resistances 20, 21 is also charged to polarity opposite from the electrostatic latent images and therefore the rise of charging of the magnetic toner forming the magnetic brush is made faster and the leakage of charging charges is prevented. Thereby, the latent images are well developed and good quality images free from uneven densities formed. If the voltage of same polarity of the latent images is applied to the conductive portion 10, good cleaning may be accomplished.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7825878A JPS556338A (en) | 1978-06-27 | 1978-06-27 | Electrophotographic copying method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7825878A JPS556338A (en) | 1978-06-27 | 1978-06-27 | Electrophotographic copying method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS556338A true JPS556338A (en) | 1980-01-17 |
Family
ID=13656955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7825878A Pending JPS556338A (en) | 1978-06-27 | 1978-06-27 | Electrophotographic copying method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS556338A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9966729B2 (en) | 2014-02-13 | 2018-05-08 | Mitsubishi Electric Corporation | Laser light source module and laser light source device |
-
1978
- 1978-06-27 JP JP7825878A patent/JPS556338A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9966729B2 (en) | 2014-02-13 | 2018-05-08 | Mitsubishi Electric Corporation | Laser light source module and laser light source device |
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