JPS5489740A - Electrostatic image developing device - Google Patents
Electrostatic image developing deviceInfo
- Publication number
- JPS5489740A JPS5489740A JP15955877A JP15955877A JPS5489740A JP S5489740 A JPS5489740 A JP S5489740A JP 15955877 A JP15955877 A JP 15955877A JP 15955877 A JP15955877 A JP 15955877A JP S5489740 A JPS5489740 A JP S5489740A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- toner
- toner layer
- cylinder
- elastic body
- 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
Abstract
PURPOSE: To obtain even toner images of high resolving power by defining the thickness of the magnetic toner layer on a developer supporting means with a doctor blade then evening the surface with an elastic body to the toner layer of a uniform thickness.
CONSTITUTION: 1 is a photosensitive drum as an electrostatic image holding means and 8 a developer supporting means provided in opposition to this holding means. A magnet 9 rotates in the magnetic cylinder of said means to scoope up magnetic toner 12 onto the cylinder and convey the same. The thickness of the toner layer on the cylinder 12 is defined with a doctor blade 10. Further an elastic body 13 is supported in a cantilever state on the downstream side of the doctor blade 10 and its free end is opposedly provided in face contact with or by leaving an extremely slight spacing from the surface of the non-magnetic cylinder opposed to the magnetic pole position of the magnetic roller 9. The surface of the toner layer which has been evened by the abovementioned elastic body 13 is pressed to even the density of the toner layer. Friction charging of the toner is made surer by this pressing.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15955877A JPS5489740A (en) | 1977-12-27 | 1977-12-27 | Electrostatic image developing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15955877A JPS5489740A (en) | 1977-12-27 | 1977-12-27 | Electrostatic image developing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5489740A true JPS5489740A (en) | 1979-07-17 |
JPS6255148B2 JPS6255148B2 (en) | 1987-11-18 |
Family
ID=15696353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15955877A Granted JPS5489740A (en) | 1977-12-27 | 1977-12-27 | Electrostatic image developing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5489740A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56125776A (en) * | 1980-03-08 | 1981-10-02 | Mita Ind Co Ltd | Developing device of electrostatic latent image |
JPS5729062A (en) * | 1980-07-29 | 1982-02-16 | Minolta Camera Co Ltd | Magnetic brush developing device |
JPS5737379A (en) * | 1980-08-19 | 1982-03-01 | Canon Inc | Developing device |
JPS5766454A (en) * | 1980-10-13 | 1982-04-22 | Ricoh Co Ltd | Magnetic brush development device |
JPS57104957A (en) * | 1980-12-23 | 1982-06-30 | Ricoh Co Ltd | Magnetic brush developer |
JPS57136952U (en) * | 1981-02-20 | 1982-08-26 | ||
JPS57180352U (en) * | 1981-05-11 | 1982-11-16 | ||
JPS5988761A (en) * | 1982-11-15 | 1984-05-22 | Ricoh Co Ltd | Developing device |
JPS63314572A (en) * | 1988-05-20 | 1988-12-22 | Mita Ind Co Ltd | Electrostatic latent image developing device |
-
1977
- 1977-12-27 JP JP15955877A patent/JPS5489740A/en active Granted
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56125776A (en) * | 1980-03-08 | 1981-10-02 | Mita Ind Co Ltd | Developing device of electrostatic latent image |
JPH0246950B2 (en) * | 1980-03-08 | 1990-10-17 | Mita Industrial Co Ltd | |
JPS5729062A (en) * | 1980-07-29 | 1982-02-16 | Minolta Camera Co Ltd | Magnetic brush developing device |
JPS6345594B2 (en) * | 1980-07-29 | 1988-09-09 | Minolta Camera Kk | |
JPH0139108B2 (en) * | 1980-08-19 | 1989-08-18 | Canon Kk | |
JPS5737379A (en) * | 1980-08-19 | 1982-03-01 | Canon Inc | Developing device |
JPS5766454A (en) * | 1980-10-13 | 1982-04-22 | Ricoh Co Ltd | Magnetic brush development device |
JPS57104957A (en) * | 1980-12-23 | 1982-06-30 | Ricoh Co Ltd | Magnetic brush developer |
JPS57136952U (en) * | 1981-02-20 | 1982-08-26 | ||
JPH0138601Y2 (en) * | 1981-02-20 | 1989-11-17 | ||
JPS57180352U (en) * | 1981-05-11 | 1982-11-16 | ||
JPS5988761A (en) * | 1982-11-15 | 1984-05-22 | Ricoh Co Ltd | Developing device |
JPS63314572A (en) * | 1988-05-20 | 1988-12-22 | Mita Ind Co Ltd | Electrostatic latent image developing device |
JPH0411869B2 (en) * | 1988-05-20 | 1992-03-02 | Mita Industrial Co Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS6255148B2 (en) | 1987-11-18 |
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