JPS57155565A - Developing device - Google Patents
Developing deviceInfo
- Publication number
- JPS57155565A JPS57155565A JP56040740A JP4074081A JPS57155565A JP S57155565 A JPS57155565 A JP S57155565A JP 56040740 A JP56040740 A JP 56040740A JP 4074081 A JP4074081 A JP 4074081A JP S57155565 A JPS57155565 A JP S57155565A
- Authority
- JP
- Japan
- Prior art keywords
- developer
- vessel
- developing
- bar
- clearance
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
- Magnetic Brush Developing In Electrophotography (AREA)
Abstract
PURPOSE:To increase the voids of a developer and to prevent the coagulation of the developer by recovering the powder developer after the end of developing, and passing the developer through intermagnetism gaps. CONSTITUTION:The developer in a developing vessel 4 is conveyed by a magnetic roller 6 to a developing part D, and the developer after development is recovered again into the vessel. The developer scraped from the sleeve by a scraper 8 is passed between a pair of magnet rollers 9 and 10 of mutually different magnetic poles which face each other. In a clearance A, the developer ears up to form voids and is pushed upward in a bulky state. In the upper part of the clearance A, the developer is agitated by an agitating bar 11, and is mixed with the fresh developer replenished from above the vessel. The developer homogenized in this way is used for development. The avoids are improved further if the agitating bar is made hollow and air is blown through the hole provided to this bar.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56040740A JPS57155565A (en) | 1981-03-20 | 1981-03-20 | Developing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56040740A JPS57155565A (en) | 1981-03-20 | 1981-03-20 | Developing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57155565A true JPS57155565A (en) | 1982-09-25 |
Family
ID=12589024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56040740A Pending JPS57155565A (en) | 1981-03-20 | 1981-03-20 | Developing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57155565A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02273770A (en) * | 1989-04-17 | 1990-11-08 | Kyocera Corp | Developing device possessing fixed magnetic assembly |
JPH04330473A (en) * | 1991-01-31 | 1992-11-18 | Ricoh Co Ltd | Developing device |
-
1981
- 1981-03-20 JP JP56040740A patent/JPS57155565A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02273770A (en) * | 1989-04-17 | 1990-11-08 | Kyocera Corp | Developing device possessing fixed magnetic assembly |
JPH04330473A (en) * | 1991-01-31 | 1992-11-18 | Ricoh Co Ltd | Developing device |
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