JPS5499442A - Developing device - Google Patents
Developing deviceInfo
- Publication number
- JPS5499442A JPS5499442A JP529478A JP529478A JPS5499442A JP S5499442 A JPS5499442 A JP S5499442A JP 529478 A JP529478 A JP 529478A JP 529478 A JP529478 A JP 529478A JP S5499442 A JPS5499442 A JP S5499442A
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor
- effective width
- effective
- toner
- occur
- 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
- Magnetic Brush Developing In Electrophotography (AREA)
- Developing For Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
PURPOSE: To develop only the effective width of a photoreceptor and prevent the contamination of transfer paper by setting the length of a developing electrode at the same as the effective width of the photoreceptor or approximately shorter in an electrophotographic apparatus of performing reversal development of the electrostatic latent images of the photoreceptor.
CONSTITUTION: In an embodiment of using an OFT 4 for exposure system and performing reversal development through wet type development in a developing part 5, the length of a developing electrode 2 is matched to the effective width of a photoreceptor drum 1, i.e., effective part A of the photoreceptor or is set approximately shorter. Hence, deposition of toner on the effective width end part B of the photoreceptor or non-photoreceptor part C does not occur and therefore even if the width of the transfer paper 13 is large, contaminating of its portions in contact with the effective width end part B and non-photoreceptor part C by the toner will not occur.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP529478A JPS5499442A (en) | 1978-01-23 | 1978-01-23 | Developing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP529478A JPS5499442A (en) | 1978-01-23 | 1978-01-23 | Developing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5499442A true JPS5499442A (en) | 1979-08-06 |
JPS6238702B2 JPS6238702B2 (en) | 1987-08-19 |
Family
ID=11607216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP529478A Granted JPS5499442A (en) | 1978-01-23 | 1978-01-23 | Developing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5499442A (en) |
-
1978
- 1978-01-23 JP JP529478A patent/JPS5499442A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6238702B2 (en) | 1987-08-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS51146831A (en) | Photo-sensible element non-image part cleaning method and its device | |
JPS53136838A (en) | Automatic controlling method of image quality in transfer type electrostatic copier | |
JPS52135740A (en) | Cleaning device for photosensitive member | |
JPS5393842A (en) | Method and apparatus for developing electrostatic latent image | |
JPS5511222A (en) | Dry type toner cleaning device | |
JPS53132352A (en) | Electrophotographic copier | |
SE7812320L (en) | ELECTRO-PHOTOGRAPHIC ADDITIONAL DEVICE FOR USE TOGETHER WITH OPTICAL PROJECTION PLANT | |
JPS5654473A (en) | Electrophotographic copier | |
JPS5499442A (en) | Developing device | |
JPS541638A (en) | Electrophotographic apparatus | |
JPS55124162A (en) | Color electrophotographic copier | |
JPS57161755A (en) | Electrophotographic device | |
JPS5394942A (en) | Liquid developing device in transfer type electrophotographic copying machine | |
JPS5541437A (en) | Electrostatic copying method | |
JPS5642258A (en) | Cleaning device | |
JPS5445141A (en) | Sensible image transfer type electrophotographic copier | |
JPS54149648A (en) | Magnetic brush developing device for zerographic copier | |
JPS5322432A (en) | Electrophotographic copier | |
JPS54106237A (en) | High speed zerography and apparatus therefor | |
JPS5397430A (en) | Electrophotographic copier | |
JPS5548755A (en) | Reversal image forming method | |
JPS5675661A (en) | Dry type two component reversal developing method | |
JPS5342825A (en) | Developing method for electrostatic latent image | |
JPS53106048A (en) | Developing and cleaning device in electrophotography | |
JPS5442143A (en) | Electrophotographic method |